Log in

Relevant bibliographies by topics / Power distribution protection / Journal articles

To see the other types of publications on this topic, follow the link: Power distribution protection.

Journal articles on the topic 'Power distribution protection'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Power distribution protection.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Nikolovski, Srete N., Marko Vukobratović, and Ljubomir Majdandzic. "Protection Coordination and Anti Islanding Protection Solution for Biomass Power Plant Connected on Distribution Network." International Journal of Electrical and Computer Engineering (IJECE) 6, no. 6 (December 1, 2016): 2526. http://dx.doi.org/10.11591/ijece.v6i6.11418.

Full text

Abstract:

<p>Protection coordination as well as anti-island protection play significant role in the process of biomass power plant connection on the distribution network. Distribution generation island operation in Croatia is unacceptable according to the existing National grid code Paper presents a protection coordination of all passive protections used in the real biomass power plant and connected distriubution network feeder. Short-circuits three phase, two phase and single line to ground faults and generator islanding simulations have been performed and simulated in the time domain at the different network locations using DIgSILENT Power Factory software. The time-current plots coordination of protective devices are made using Smart PDC module in Easy Power Protector software tool.</p>

APA, Harvard, Vancouver, ISO, and other styles

2

Nikolovski, Srete N., Marko Vukobratović, and Ljubomir Majdandzic. "Protection Coordination and Anti Islanding Protection Solution for Biomass Power Plant Connected on Distribution Network." International Journal of Electrical and Computer Engineering (IJECE) 6, no. 6 (December 1, 2016): 2526. http://dx.doi.org/10.11591/ijece.v6i6.pp2526-2537.

Full text

Abstract:

<p>Protection coordination as well as anti-island protection play significant role in the process of biomass power plant connection on the distribution network. Distribution generation island operation in Croatia is unacceptable according to the existing National grid code Paper presents a protection coordination of all passive protections used in the real biomass power plant and connected distriubution network feeder. Short-circuits three phase, two phase and single line to ground faults and generator islanding simulations have been performed and simulated in the time domain at the different network locations using DIgSILENT Power Factory software. The time-current plots coordination of protective devices are made using Smart PDC module in Easy Power Protector software tool.</p>

APA, Harvard, Vancouver, ISO, and other styles

3

Paul, D., and S. I. Venugopalan. "Power distribution system equipment overvoltage protection." IEEE Transactions on Industry Applications 30, no. 5 (1994): 1290–97. http://dx.doi.org/10.1109/28.315241.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Goh, Hui Hwang, Sy yi Sim, Dahir Khere Diblawe, Mortar Mohamed Ali, Chin Wan Ling, Qing Shi Chua, and Kai Chen Goh. "Energy Power Plant in Electric Power Distribution Systems Equipping With Distance Protection." Indonesian Journal of Electrical Engineering and Computer Science 8, no. 1 (October 1, 2017): 192. http://dx.doi.org/10.11591/ijeecs.v8.i1.pp192-198.

Full text

Abstract:

<p>This paper suggests the theory of distance protection criteria in power distribution systems for power plant generation. Multi-developed countries have energy power plants that placed in remote areas which are far from the grid line. Hence, they should be coupled to the low power transportation systems necessarily. While higher-rating relays are adopted to preserve feeders at power substations, fuses are merely obtainable outside on feeder channel. The safe system process, space protection is dispatched to save feeders. In this review, feeders with distance relays are equipped, together with over-current protection relays and fuses. Energy power plant having distance protection system is designed the implemented system was a 6-MW unit of compressed power energy reproduction. The sample feeder was shortened to be equal four-bus experiment feeder for transmitting resolution. The fault currents have chances adopted to form protecting regions of distance relays. Protection of the power line through the designed power plants for distance relaying can decrease problem in relay location because of the impedance-based location of the distance relay. </p>

APA, Harvard, Vancouver, ISO, and other styles

5

Huang, Che Cheng, Jia Jing Yeh, Zhe Yang Huang, and Chien Kai Tseng. "FORMOSAT-5 Satellite Power Protection Design." Applied Mechanics and Materials 145 (December 2011): 536–41. http://dx.doi.org/10.4028/www.scientific.net/amm.145.536.

Full text

Abstract:

The main functions of the Power Control and Distribution Unit (PCDU) in FORMOSAT-5 satellite are to condition energy from the solar arrays and distribute power for all subsystems on the satellite. The Power Relay (PR) module, one of the major modules in the PCDU is to manage the switchover of redundant DC-DC converter sections, secondary power distribution and power protections. The PR module controls power protections which are under voltage (UV) protection and Undervoltage-Lockout (UVLO) detection. UVLO detection monitors primary power voltage with majority voting in PR FPGA. UV detector switches nominal DC-DC converter to redundant DC-DC section, when under voltage happens. Power protection circuits all can be realized by Inverting Bistable Multivibrator. This paper describes protection methods for power and the reliable circuit design implementation.

APA, Harvard, Vancouver, ISO, and other styles

6

Kirui, Kemei Peter, David K. Murage, and Peter K. Kihato. "Fuse-Fuse Protection Scheme ETAP Model for IEEE 13 Node Radial Test Distribution Feeder." European Journal of Engineering Research and Science 4, no. 9 (September 29, 2019): 224–34. http://dx.doi.org/10.24018/ejers.2019.4.9.1549.

Full text

Abstract:

According to NEC 240.101 regulations each and every component of a power system distribution network has to have an over-current protective device (OCPD) for its protection. The OCPDs must coordinate with other devices both upstream and downstream for a reliable operation and protection of the power systems distribution network. There are four equipment/components for the IEEE 13 node radial test feeder each modelled in this paper to be protected by fuses. These components are namely the nodes, the underground cables, the overhead distribution lines and the transformers. Equipment protection is an important and necessary exercise of performing power systems protection coordination processes. The equipment and their over-current protective device’s time-current characteristic (TCC) curves are important tools used to show and to indicate the protection requirements, landmark points and damage curves for all power systems equipment. Individual equipment protection requirements and limitations are described and identified by use of their various landmarks and damage curves. These damage curves and the landmark points are all superimposed with the Time-Current Characteristic curves of the Over-Current Protective Devices used in protecting the equipment on one composite TCC graph. Equipment damage curves which fall to the right and above the Over-Current Protective Device’s TCC curves with sufficient margins are considered to be protected by the OCPDs. Equipment damage curves which fall to the left and below the OCPD’s TCC curves are considered not to be protected by the OCPDs. IEEE Standard 241 states that on all power systems, the OCPDs should be selected and set to open before the Ampacity mark, the short circuit damage curves, and both the thermal and the mechanical damage curves limits of the protected components are exceeded. This paper presents a detailed Fuse-Fuse protection scheme for the IEEE 13 node radial test feeder as modeled on the Electrical Transients Analysis Program (ETAP).

APA, Harvard, Vancouver, ISO, and other styles

7

Yokoyama, Shigeru. "Lightning protection of overhead power distribution lines." IEEJ Transactions on Electrical and Electronic Engineering 2, no. 5 (2007): 491–96. http://dx.doi.org/10.1002/tee.20199.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Li, Xiao Ming, Sha Li, Peng Lu, and Shu Qiong Liu. "The Study on Configuration and Setting of Relay Protection when Distributed Generation Accesses to Distribution Network." Advanced Materials Research 433-440 (January 2012): 1950–56. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.1950.

Full text

Abstract:

When distributed generation (DG) accesses to non-system bus , and the power capacity increases to a certain extent, it will cause malfunction of protective devices, as a result of which ,protective devices lose selectivity. This paper analyzes influence to relay protection of power system as a result of the access of DG, establishes a model of the access of DG, and proposes principles of reconfiguration of protection devices, and re-setting of relay protection when DG accesses to power system. This method provides a theoretical basis for designing of DG accessing to power system, reconfiguration of protection devices and re-setting of relay protection.

APA, Harvard, Vancouver, ISO, and other styles

9

Fuller, J. F., E. F. Fuchs, and D. J. Roesler. "Influence of harmonics on power distribution system protection." IEEE Transactions on Power Delivery 3, no. 2 (April 1988): 549–57. http://dx.doi.org/10.1109/61.4292.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Xin, XU, WANG Shirong, and ZHANG Jianan. "Distribution network with distributed power protection setting policy666." Journal of Physics: Conference Series 2005, no. 1 (August 1, 2021): 012159. http://dx.doi.org/10.1088/1742-6596/2005/1/012159.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Kreislova, Katerina, Hana Geiplova, Lubomir Mindos, and Radka Novakova. "Corrosion Protection of Infrastructure of Power Industry." Materials Science Forum 811 (December 2014): 31–40. http://dx.doi.org/10.4028/www.scientific.net/msf.811.31.

Full text

Abstract:

SVUOM specialists have participated in many activities concerning corrosion failure analysis or testing the materials/coatings for corrosion protection in power industry (e.g. temporary protection of various parts of power plants, long-term corrosion behaviour of weathering steels and mild steel with hot dip galvanised coating (HDG) and paint coatings of poles, reconstruction of parts of nuclear plants, etc.). There are many materials and corrosion protective coatings used for infrastructure of power industry – the SVUOM main interest is focused to distribution network.

APA, Harvard, Vancouver, ISO, and other styles

12

Chai, Lu, and Chen Chen. "Research on Tuning Protection with Distributed Power Distribution Grid." Advanced Materials Research 1008-1009 (August 2014): 690–93. http://dx.doi.org/10.4028/www.scientific.net/amr.1008-1009.690.

Full text

Abstract:

Along with the gradually lack of the fossil fuels, people pay more and more attention to the use of renewable energy. Distributed power supply of a large number of interconnection affects the distribution network power flow direction and size a lot. Thus, the protection setting values of the distribution network line are not accurate, which lead to the refusing action or misoperation. This article uses compensating coefficient based on the consideration of adaptive protection algorithm of distribution network protection value setting, and operate simulation. The simulation results show that this algorithm of adaptive protection is good with different distributed power grid capacity and right protection setting values.

APA, Harvard, Vancouver, ISO, and other styles

13

Gómez, J. C., J. Vaschetti, M. Piumetto, J. Arcurio, and C. Coyos. "Protection of Power Semiconductors in Inverters, using Fuses and their Coordination with the Protection Schemes of the Distribution System." Renewable Energy and Power Quality Journal 19 (September 2021): 483–86. http://dx.doi.org/10.24084/repqj19.323.

Full text

Abstract:

The integration of Distributed Energy Resources (DER) implies an important challenge for the protection of the distribution network, due to the incorporation of devices with less capacity to withstand normal disturbances in distribution systems, particularly for overcurrents and overvoltages. The increasingly widespread use of power electronics, incorporated in rectifiers and inverters, which due to its weakness requires highspeed protection devices, complicates coordination with the traditional protection of distribution systems. Converters (rectifiers and inverters) require ultra-fast protection against high current faults, conditions that currently only meet high breaking capacity fuses. The response characteristics of these ultra-fast fuses, oblige the professional in charge of the protection of the distribution system to have a deep knowledge about the behavior of the power electronics in the face of overcurrents, and to know also how the fuses, through the selection of its rated values and characteristic curves protects it. Coordination of the rating values and characteristics of these fuses with their counterparts (when they exist) of traditional protection devices is the main objective of this article. Particular terms are explained in detail, such as fault current asymmetry and its effect on the coordination of protections, specific energy, etc. It is concluded that deep knowledge of the dissimilar characteristics of power electronics devices and the usual devices of distribution networks, with regard to their protections, are essential to obtain a maximum use of the traditional scheme with the addition of DER.

APA, Harvard, Vancouver, ISO, and other styles

14

Djibo, Marounfa `., Paul Moses, and Ike Flory. "Fault Protection Considerations for MVDC Shipboard Power Systems Operating with Pulsed-Power Loads." WSEAS TRANSACTIONS ON POWER SYSTEMS 16 (August 2, 2021): 139–48. http://dx.doi.org/10.37394/232016.2021.16.14.

Full text

Abstract:

Medium Voltage Direct Current (MVDC) power distribution architectures are of immense interest for various shipboard power applications due to their advantages over classical MVAC distribution systems with respect to power quality, power density, and efficiency. However, MVDC are far away from maturity when compared to MVAC with respect to fault detection and isolation. Currently, there are no standards available for applying MVDC protection systems in shipboard applications. Furthermore, due to the absence of zero crossings in DC waveforms and unique transient fault signatures, it is challenging to design effective protection system schemes to isolate faults via conventional protection systems. This paper investigates and analyses various types of shipboard MVDC dynamic fault behaviours and signatures under different DC bus disturbances such as: bus to ground, bus to bus to ground, and impact of Pulsed-Power Load (PPL) with and without faults on a shipboard MVDC distribution system. Furthermore, a communication-based fault detection and isolation system controller that improves upon a directional ac overcurrent relay protection system is proposed offering additional protection discrimination between faults and PPLs in MVDC systems. To validate the effectiveness of the proposed protection controller, different bus current disturbances are simulated within a time-domain electromagnetic transient simulation of a shipboard power system including a PPL system operating with different ramp rate profiles, pulse widths, peak powers, and fault locations

APA, Harvard, Vancouver, ISO, and other styles

15

Xu, Chong Xin, and Yan Jun Jiao. "Protection Scheme for Distribution Network with Distributed Generation." Advanced Materials Research 960-961 (June 2014): 1376–80. http://dx.doi.org/10.4028/www.scientific.net/amr.960-961.1376.

Full text

Abstract:

Power generation becomes a main way of using new energy. However, the access of distributed generation(DG) causes the ordinary protection system develop a series of problems. In this paper, the structure of distribution network with DG is introduced firstly.Secondly,it is analysed that the effect that DG brings to distribution network protection, and then a new protection scheme of distribution network with DG is put forward. The segment I, II of direction three-current protection on the line which is at the upstream of DG, and the next line’s segment I, II consists of a simple communication unit. Through the comprehensive judgment of two protections’ action results, fault can be isolated in minimum range quickly and accurately. Finally, the correctness and feasibility of the new protection principle are verified by simulating a 10KV distribution system.

APA, Harvard, Vancouver, ISO, and other styles

16

ASAKAWA, Akira. "Transition of Lightning Protection Design on Power Distribution Lines." Journal of The Institute of Electrical Engineers of Japan 128, no. 8 (2008): 540–43. http://dx.doi.org/10.1541/ieejjournal.128.540.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Kim, Seongil, Gabriele Ulissi, Soo-Nam Kim, and Drazen Dujic. "Protection Coordination for Reliable Marine DC Power Distribution Networks." IEEE Access 8 (2020): 222813–23. http://dx.doi.org/10.1109/access.2020.3043515.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Xiaodong Liang and J. Lim. "Power-System Protection in an Oil-Field Distribution System." IEEE Transactions on Industry Applications 46, no. 1 (2010): 340–48. http://dx.doi.org/10.1109/tia.2009.2036511.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Wattanasophon, Sirichai, and Bundhit Eua-arporn. "Power Distribution Protection System Design with Momentary Interruption Consideration." IEEJ Transactions on Electrical and Electronic Engineering 4, no. 6 (November 2009): 736–41. http://dx.doi.org/10.1002/tee.20474.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Rolim, Felipe B. B., Fernanda C. L. Trindade, and Marcos J. Rider. "Adaptive Protection Methodology for Modern Electric Power Distribution Systems." Journal of Control, Automation and Electrical Systems 32, no. 5 (August 3, 2021): 1377–88. http://dx.doi.org/10.1007/s40313-021-00774-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Wang, Lin Yuan. "The Application Research of Current Protection Device in Low-Voltage Rural Grid." Applied Mechanics and Materials 644-650 (September 2014): 3675–77. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.3675.

Full text

Abstract:

Current protective device against direct and indirect electric shock as well as effective protection against electrical fires has been widely used in the rural power grid, but there is also a more prominent issue. Residual current protection device in use often appearing malfunction, tripping phenomenon has seriously affected the security and stability and reliability of power supply and low voltage distribution systems. In this paper, it should be from a low-voltage distribution systems and wiring protection devices, power grid maintenance operation, standardized management products, technical training and promotion of social workers and other aspects of a comprehensive solution to this problem; and presented on the remaining current protection device applications, some of the views.

APA, Harvard, Vancouver, ISO, and other styles

22

Thibodeau, Phillip. "Integrated Power Distribution Unit (IPDU): Point-of-Use Power Conversion, Management, Distribution, and Protection for Aircraft Electric Power Systems." SAE International Journal of Aerospace 5, no. 2 (October 22, 2012): 513–23. http://dx.doi.org/10.4271/2012-01-2222.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Obied, Yamur M., and Thamir M. Abdul Wahhab. "Protection Coordination of 33/11 kV Power Distribution Substation in Iraq." Engineering and Technology Journal 39, no. 5A (May 25, 2021): 723–37. http://dx.doi.org/10.30684/etj.v39i5a.1790.

Full text

Abstract:

The coordination between protective devices is the process of determining the most appropriate timing of power interruption during abnormal conditions in the power system. The aim of this work is to coordinate the protection of the 33/11 kV power distribution substation in Iraq using the CYME 7.1 software package. In this paper overcurrent and earth fault relays are simulated in two cases, with time delay setting and instantaneous setting, to obtain the Time Current Characteristics (TCC) curves for each Circuit Breaker (CB) relay of Al-Karama substation (2×31.5 MVA, 33/11 kV) in Babil distribution network. The short circuit current at each CB is calculated and accordingly, the protection coordination for Al-Karama substation has been simulated. The TCC curves have been obtained in two cases for overcurrent and earth fault relays; in a case with time delay setting and in the case with the instantaneous setting. The setting takes into consideration the short circuit current at the furthest point of the longest outgoing feeder and the shortest outgoing feeder.

APA, Harvard, Vancouver, ISO, and other styles

24

Zayandehroodi, Hadi, Azah Mohamed, Hussain Shareef, Masoud Farhoodnea, and Marjan Mohammadjafari. "Effect of Renewable Distributed Generators on the Fault Current Level of the Power Distribution Systems." Advanced Materials Research 622-623 (December 2012): 1882–86. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.1882.

Full text

Abstract:

The presence of renewable distributed generator (RDG) in a distribution system will have unfavorable impact on the operating system because the distribution system is no longer radial in nature and is not supplied by a single main power source. With RDGs in a distribution network, it brings about a change in the fault current level of the system and causes many problems in the protection system, such as false tripping of protective devices, protection blinding, an increase and decrease in short-circuit levels. This paper presents the effect of RDGs on the fault current level of the system. The operating protection issues particularly in cases where RDGs are added to a LV distribution feeder are also discussed.

APA, Harvard, Vancouver, ISO, and other styles

25

Gao, Mei. "Reliability and Cost Performance Ratio Analysis on EPON Protection Networking of Power Distribution Communication Network Access Layer." Applied Mechanics and Materials 494-495 (February 2014): 1602–5. http://dx.doi.org/10.4028/www.scientific.net/amm.494-495.1602.

Full text

Abstract:

Based on the reliability theory of power communication network, reliability analytic methods arc proposed for Ethernet passive optical network (EPON) protection networking of the power distribution communication access layer. By using the system availability theory, the reliability and cost of EPON protection networking arc quantitatively analyzed for the access layer of four kinds of power distribution communication network, i. c., tree-type network of single power supply redundancy protection, hand-in-hand network of whole chain protection, dual-power dual-T network of full link protection, and ring-type protection network. The optimal networking solutions arc discussed and summed up for the EPON protection networking schemes of power distribution communication network in current operation.

APA, Harvard, Vancouver, ISO, and other styles

26

Shaikh, Muhammad Fawad, Sunny Katyara, Zahid Hussain Khand, Madad Ali Shah, Lukasz Staszewski, Veer Bhan, Abdul Majeed, Shoaib Shaikh, and Leonowicz Zbigniew. "Novel Protection Coordination Scheme for Active Distribution Networks." Electronics 10, no. 18 (September 20, 2021): 2312. http://dx.doi.org/10.3390/electronics10182312.

Full text

Abstract:

Distribution networks are inherently radial and passive owing to the ease of operation and unidirectional power flow. Proper installation of Distributed Generators, on the one hand, makes the utility network active and mitigates certain power quality issues e.g., voltage dips, frequency deviations, losses, etc., but on the other hand, it disturbs the optimal coordination among existing protection devices e.g., over-current relays. In order to maintain the desired selectivity level, such that the primary and backup relays are synchronized against different contingencies, it necessitates design of intelligent and promising protection schemes to distinguish between the upstream and downstream power flows. This research proposes exploiting phase angle jump, an overlooked voltage sag parameter, to add directional element to digital over-current relays with inverse time characteristics. The decision on the direction of current is made on the basis of polarity of phase angle jump together with the impedance angle of the system. The proposed scheme at first is evaluated on a test system in a simulated environment under symmetrical and unsymmetrical faults and, secondly, as a proof of the concept, it is verified in real-time on a laboratory setup using a Power Hardware-in-loop (PHIL) system. Moreover, a comparative analysis is made with other state-of-the-art techniques to evaluate the performance and robustness of the proposed approach.

APA, Harvard, Vancouver, ISO, and other styles

27

Bekhti, M., M. Bensaada, and M. Beldjehem. "Design and implementation of a power distribution system adopting overcurrent protection." Aeronautical Journal 124, no. 1281 (July 15, 2020): 1789–97. http://dx.doi.org/10.1017/aer.2020.60.

Full text

Abstract:

ABSTRACTOne of the most critical aspects of a small satellite is the electrical power system (EPS) since the electrical power is necessary for the satellite to operate correctly during its predefined lifetime. The electrical power system consists mainly of solar cells, batteries, voltage converters and protection circuits. The electrical power system is responsible of providing stable power to the rest of the satellite subsystems.In satellite electrical power systems, overcurrent protection is now becoming an important function handled by the power distribution module (PDM). This paper proposes a method to evaluate the suggested protection. With the proposed procedure we should be able to verify that every possible failure does not travel through the EPS and cause a fatal degradation of the electrical power system. This will allow a complete evaluation of functionality of the protection hardware.This paper discusses the design and implementation of the power distribution module (PDM) for the coming generation of small satellites for the Algerian Space Agency (ASAL). The design must provide a reliable protection for the subsystems from the overcurrent associated with a device failure.

APA, Harvard, Vancouver, ISO, and other styles

28

Wang, Jia Wei, Xiao Jun Song, Hai Bo Zhao, Wei Li, and Jing Guo. "Research on Distribution Generation of Protection Scheme Based on MAS." Applied Mechanics and Materials 614 (September 2014): 261–64. http://dx.doi.org/10.4028/www.scientific.net/amm.614.261.

Full text

Abstract:

Distributed energy and grid technology rapid development, its impact on the distribution grid protection is widespread concern. This paper describes the DG, Analysis of the access of distributed power for protection. Proposed protection architecture Based on MAS. Designed to compare the amount of current distributed power protection solutions. The program is simple and self-adaptability. This research is of great reference value.

APA, Harvard, Vancouver, ISO, and other styles

29

Zhou, Xue Song, Jin Liu, and You Jie Ma. "Research on the Influence to Power System Protection with Harmonic of Power Electronic Devices." Advanced Materials Research 317-319 (August 2011): 1263–66. http://dx.doi.org/10.4028/www.scientific.net/amr.317-319.1263.

Full text

Abstract:

With the development of science and technology, higher and higher quality requirements were needed by the electrical consumers about the power energy in power supplying and distributing. For this objective, many kinds of power electronic equipments are applied in power supply systems and distribution systems in order to improve the system running stability with their rapid response operation characteristics. But at the same time, the power electronic equipments may generate some hidden dangers that can not be overlooked to the system, particularly to the reliability of protection.

APA, Harvard, Vancouver, ISO, and other styles

30

Akila, Abdelrahman Ahmed, Ahmed Helal, and Hussein Eldesouki. "Protection of Active Distribution Systems with DGs." International Journal of Emerging Electric Power Systems 16, no. 5 (October 1, 2015): 399–411. http://dx.doi.org/10.1515/ijeeps-2015-0033.

Full text

Abstract:

Abstract Distribution systems are traditionally designed as radial passive systems fed from a single source. Protection coordination of such systems has been easily established assuming the system radiality. Insertion of distributed generators (DGs) into distribution systems makes the distribution system to be more active which causes redistribution of fault currents magnitudes and directions. This causes negative impacts on the original protection system coordination, since the distribution system losses its radiality and passiveness. Recently protection coordination in the presence of distributed generation has been paid a great attention. Researchers proposed various solutions to solve the protection coordination problem caused by adding DG into the distribution network. In this paper, the proposed solutions for the protection coordination problem considering the DG insertion will be illustrated, classified, and criticized.

APA, Harvard, Vancouver, ISO, and other styles

31

Phothilath, Khamhyo, Kittipong Tonmitra, Arkom Kaewrawang, and Pramin Artrit. "Time-Coordination-Based Fault Protection System for Power Distribution Network." Advanced Materials Research 931-932 (May 2014): 867–72. http://dx.doi.org/10.4028/www.scientific.net/amr.931-932.867.

Full text

Abstract:

In this paper, we present our study of the 22 kV power distribution network at Sisaket substation in Vientiane. Based on the simulation using Digsilent power factory software (DPFS), the protection device, particularly fuses and the reclosers, can be coordinated in time to better protect the system against both temporary and permanent faults, and consequently, the reliability of the system can be improved. Furthermore, the saving fuse and choosing the new protection device to prevent the distribution network is considered in this paper.

APA, Harvard, Vancouver, ISO, and other styles

32

Yokoyama, Shigeru. "Lightning Protection on Power Distribution Lines against Direct Lightning Hits." IEEJ Transactions on Power and Energy 114, no. 6 (1994): 564–68. http://dx.doi.org/10.1541/ieejpes1990.114.6_564.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Mohanbabu, V., Sk Moulali, Ju Chan Na, and Peng Cheng. "SFCL for Energy Storage Protection in a Power Distribution System." International Journal of Reliable Information and Assurance 4, no. 1 (June 30, 2016): 15–24. http://dx.doi.org/10.21742/ijria.2016.4.1.03.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Cong, Rili, Shuai Ji, Mingyu Zhao, and Chun Pang. "Analysis of Distribution Network Protection Based on Distributed Power Sources." IOP Conference Series: Materials Science and Engineering 394 (August 8, 2018): 042027. http://dx.doi.org/10.1088/1757-899x/394/4/042027.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Napolitano, F., A. Borghetti, C. A. Nucci, M. L. B. Martinez, G. P. Lopes, and G. J. G. Dos Santos. "Protection against lightning overvoltages in resonant grounded power distribution networks." Electric Power Systems Research 113 (August 2014): 121–28. http://dx.doi.org/10.1016/j.epsr.2014.02.022.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Han, Mengxia, Lian Suo, and Jiaoru Song. "Simulation analysis of current protection in distributed power distribution network." Journal of Physics: Conference Series 1550 (May 2020): 052014. http://dx.doi.org/10.1088/1742-6596/1550/5/052014.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

He, Shi En, Xin Zhou Dong, Zhi Qian Bo, and Jia Le Suo Nan. "The Relay Protection Scheme for Distribution Network with Distributed Generations." Advanced Materials Research 433-440 (January 2012): 4046–52. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.4046.

Full text

Abstract:

Three-zone distance protection and four-zone zero sequence over-current protection are traditional relay protection schemes used for tapped-lines that connect distributed photovoltaic, wind, and small hydro power sources into a distribution network. These protection schemes cannot quickly clear the faults that occur at the end of the protected line. A newly developed non-communication protection scheme for tapped-line and double-circuit line tested at Gansu Power Grid can significantly speed up fault clearing at the end of the lines, and achieve fast tripping for the entire line section. This protection scheme also shows advantageous results for distribution grid with distributed generation.

APA, Harvard, Vancouver, ISO, and other styles

38

Chen, Ming Jun, Chen Zhu Xuan, and Xin Kai Lian. "Fault Analysis of Distribution Network which Contains Distributed Generation." Applied Mechanics and Materials 325-326 (June 2013): 624–27. http://dx.doi.org/10.4028/www.scientific.net/amm.325-326.624.

Full text

Abstract:

when the photovoltaic power generation and thermoelectric power factory connect into the distribution network , the system change from one source to several sources. it will change the construction of the system and the system power flow ,and also the size and direction of short-circuit current. It is harder to prepare the grid protection devices and set value for the protection. This paper studied the complex electronic systems which contains wind farms and thermoelectric power factory, analysis the change of voltage and current of each bus when the fault happen after the photovoltaic power generation connected into the system, and also talk about how the fault location affect the system fault component .Then conduct the expression of the fault current of each line to provide the basis for the study of multiterminal supply network protection strategy.

APA, Harvard, Vancouver, ISO, and other styles

39

Dyśko, A., G. M. Burt, S. Galloway, C. Booth, and J. R. McDonald. "UK distribution system protection issues." IET Generation, Transmission & Distribution 1, no. 4 (2007): 679. http://dx.doi.org/10.1049/iet-gtd:20070054.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Rugthaicharoencheep, Nattachote, and Jirawat Maigan. "Impacts of Factor Lightning and Surge Protection for Photovoltaic Power Generator on Distribution System." Applied Mechanics and Materials 901 (August 2020): 103–8. http://dx.doi.org/10.4028/www.scientific.net/amm.901.103.

Full text

Abstract:

This research paper presents the analysis of factor lightning protection for photovoltaic power generation. The question of the safety of lightning protection systems in photovoltaic power generation, especially under severe weather conditions such as thunderstorms. Therefore, a simple model of a photovoltaic power generation was developed, which included the arrangement of a conventional photovoltaic panel. The effect of lightning is also simulated by the pattern of lightning currents. It is also found that the size of the panel mounting structure and the point of lightning conduction induce the induced voltage at the junctions of the photovoltaic panel. Based on the results of the impulse current analysis, the intensity of the lightning current is increasing rapidly. All these factors will be taken into consideration in order to design a protective system.

APA, Harvard, Vancouver, ISO, and other styles

41

Xu, Jian Guo, Jun Dong, Hao Zhang, Yu Jie Pei, and Xian Feng Li. "66 kV SVC Light Control Water-Cooled Valve Protection and Application." Applied Mechanics and Materials 543-547 (March 2014): 825–29. http://dx.doi.org/10.4028/www.scientific.net/amm.543-547.825.

Full text

Abstract:

Improve power quality problems, the company introduced the "tag through 66kV Static dynamic reactive power compensation device (SVC)", which means water cooling valve parts, using the international advanced technology and light control thyristor, the real control cabinet and valve all-fiber connections between groups, no valve trigger circuit boards, etc., to ensure safe and reliable high-pressure environment. Light control while protecting 66kV more stable water-cooled manifold, also designed the various protection functions. Reactive power compensation device based on electrical design principle, the protection of the valve design principles, summarized the valve characteristic is a light-controlled thyristor trigger and pulse trigger laser fiber distribution device as one of the valve, the valve overcurrent analysis protection, undervoltage protection, return status display, RC protection, BOD protection, protection and cooling system valve structural protection, light control demonstrates the necessity of 66kV water cooling valve protection; through the reactive power compensation and benefits case situation the comparative analysis to verify the correctness of the application of SVC devices.

APA, Harvard, Vancouver, ISO, and other styles

42

Smirnov, A. I., and J. E. Shklyarskiy. "Adaptive current protection in electrical complexes with small power plants." E3S Web of Conferences 266 (2021): 04002. http://dx.doi.org/10.1051/e3sconf/202126604002.

Full text

Abstract:

The article considers electrical complexes with power plants of small capacity. The influence of power generation sources on short-circuit current distribution has been investigated. Reduced sensitivity of back-up current protection and dependence of current distribution on power plant capacity are revealed. Recommendations for minimizing false operation of short-circuit protection in networks with distributed power generation are proposed. An algorithm for adaptive current protection, which uses graph theory to determine the stages of selectivity of relay protection based on finding the shortest Dijkstra path and calculation of equivalent resistance in networks with multiple sources of power generation, which provides selec-tivity and sensitivity of current protection when changing the generated power of generators and the structure of the distribution network is pre-sented. The algorithm uses communication lines with a central control unit to monitor the distribution network and update the current triggering of the relay protection in accordance with changes in the structure of the power grid. The proposed system is designed so that it can respond to dynamic changes in the structure of the network and the state of operation of power plants. Simulation modeling in the Matlab/Simulink software package was performed and the results of the algorithm are presented.

APA, Harvard, Vancouver, ISO, and other styles

43

Naily, Naser El, Saad M. Saad, Zakariya Rajab, and Faisal Mohamed. "An intelligent protection scheme to mitigate the impact of integrating large share wind energy resources in a weak distribution network." Wind Engineering 41, no. 6 (August 10, 2017): 383–96. http://dx.doi.org/10.1177/0309524x17721995.

Full text

Abstract:

Although integration of wind distributed generation directly into the distribution level has considerable advantages, increased penetration of wind distributed generation (renewable distributed generation) alters the network configuration and jeopardizes the protection system operation and system stability; for this reason, necessary changes in power system protection philosophy must be achieved. Modern numerical relays offer extraordinary features and fast and accurate methods for spotting and detecting different unbalanced operating conditions and can be used to mitigate the influence of integrating wind distributed generation into distribution network. In this study, an adaptive directional negative protective scheme was implemented in the medium-level distribution network to investigate and evaluate the performance of protection system and introduce new adaptive protective scheme based on negative overcurrent protection to increase the selectivity and sensitivity of the protection system in case of unbalanced faulty conditions. The medium-level distribution network of Libya Eastern electric network had been implemented in ETAP software to address and evaluate the efficiency of the proposed approach.

APA, Harvard, Vancouver, ISO, and other styles

44

Cui, Kai, Zhong Bo Dong, and Bo Li. "Research on Spacecrafts Intelligent Power Distribution Technology." Applied Mechanics and Materials 182-183 (June 2012): 436–39. http://dx.doi.org/10.4028/www.scientific.net/amm.182-183.436.

Full text

Abstract:

The development of all kinds of spacecrafts is much smaller and more intelligent, integration increased constantly, one satellite can accomplish more and more expectant missions by using plenty of loads. As a result, higher power, higher reliability and much smarter power distribution system is needed to satisfy the growing quantity of loads. This paper presents the power supply system which characterized by loads observation real time, software and hardware combinational over current protection, bus communication with on board computer, the system has been validated in project and the conclusion has been proved accuracy and reliability.

APA, Harvard, Vancouver, ISO, and other styles

45

Deng, Ling Hui, Zhi Xin Wang, and Jian Min Duan. "Protection Scheme for DC Microgrid Distribution System." Advanced Materials Research 614-615 (December 2012): 1661–65. http://dx.doi.org/10.4028/www.scientific.net/amr.614-615.1661.

Full text

Abstract:

The low voltage DC (LVDC) distribution system is a new concept and a promising technology to be used in the future smart distribution system having high level cost-efficiency and reliability. In this paper, a low-voltage (LV) DC microgrid protection system design is proposed. Usually, an LVDC microgrid must be connected to an ac grid through converters with bidirectional power flow and, therefore, a different protection scheme is needed. This paper describes practical protection solutions for the LVDC network and an LVDC system laboratory prototype is being experimentally tested by MATLAB/SIMULINK. The results show that it is possible to use available devices to protect such a system. But other problems may arise which needs further study.

APA, Harvard, Vancouver, ISO, and other styles

46

Wang, Yu Mei, Hao Zhang, and Xu Yang. "Lightning Protection Measures Research on Coal Mine 6kV Distribution Lines." Advanced Materials Research 655-657 (January 2013): 872–75. http://dx.doi.org/10.4028/www.scientific.net/amr.655-657.872.

Full text

Abstract:

Use electromagnetic simulation software PSCAD/EMTDC to 6 kV power distribution lines for lightning protection research. Resarch the influence of the different measures for the lightning protection level. Finally get a comprehensive lightning protection program.

APA, Harvard, Vancouver, ISO, and other styles

47

Tuyou, Si, Wu Jiekang, Yuan Weideng, and Du Anan. "Power supply risk assessment method for relay protection system faults." Archives of Electrical Engineering 65, no. 4 (December 1, 2016): 803–14. http://dx.doi.org/10.1515/aee-2016-0056.

Full text

Abstract:

Abstract The influence and the potential risk due to hidden faults of a relay protection system on power supply in distribution systems are paid more and more attention to. A probability analysis method is used to analyse fault characteristics and action mechanism of dominant faults, hidden misoperation and non-operation of the relay protection systems, and failure probability model of relay protection system is constructed and simplified. The effects of dominant faults, hidden misoperation and non-operation of the relay protection systems on the reduced power supply load power are analysed, and a probabilistic model for reduced power supply load power is constructed by three parts corresponding to dominant faults, hidden misoperation and non-operation. A probability calculation method of power supply risk occurrence due to hidden faults of relay protecttion system is proposed considering the fault probability of the relay protection systems, the frequency of the hidden faults occurring in operation period, the reduced power supply load power or load power outage, and the connection mode of the in-lines, out-lines and transformers in a substation. The feasibility and applicability of the proposed method for estimation of risk value probability of the relay protection systems is verified by two studied examples.

APA, Harvard, Vancouver, ISO, and other styles

48

Wang, Yi Jun, Zhuang Liu, Wu Xuan Jia, Hai Bo Liu, and Shi Liang Tu. "The Design and Implementation of Intelligent Power Distribution Park Distribution Equipment." Advanced Materials Research 631-632 (January 2013): 1215–19. http://dx.doi.org/10.4028/www.scientific.net/amr.631-632.1215.

Full text

Abstract:

The integration, integrated device integration solution is an important part of the Intelligent Power Distribution Park, perfect, versatile intelligent components platform made the equipment intelligent become possible. The paper presents the design of a general distribution equipment intelligent component platform, presents the intelligent component module structure and configuration program. And equipped with real-time operating system for intelligent units work together for the management, and can satisfy the requirements of the intelligent power distribution equipment. Finally, carried out the Verify of GOOSE protection trip delay for real-time to the Intelligent Component Platform, the results meet IEC61850 standard requirements, providing a reference for the follow-up research and development of power distribution equipment intelligent components.

APA, Harvard, Vancouver, ISO, and other styles

49

An, Wen, Jun Jie Ma, Hong Yang Zhou, Hong Shan Chen, Xu Jun, and Xu Jian. "An Adaptive Differential Protection and Fast Auto-Closing System for 10 kV Distribution Networks Based on 4G LTE Wireless Communication." Future Internet 12, no. 1 (December 20, 2019): 2. http://dx.doi.org/10.3390/fi12010002.

Full text

Abstract:

With the development of wireless communication technology and computer technology, more and more smart technologies have been applied in electricity distribution networks. This paper presents an adaptive current differential protection and fast auto-closing system for application in 10 kV distribution networks in China Southern Power Grid. The current differential protection can adaptively change its settings according to the topology change of the primary distribution networks, thus the system effectively reduces the operation and maintenance cost of the power distribution network. In order to restore the power supply for the healthy part of the 10 kV networks quickly after a power system fault is cleared, the protection and control system provides wide area control function for automatic fault isolation and automatic switching. The traditional overcurrent protection and control system have no fault location function, it may take several minutes or even hours to manually locate a fault and then restore the power supply. Compared with the protection and control system of the traditional 10 kV distribution networks, the system developed can locate and isolate faults within 900 ms (assuming that the operating time of the load switch is 700 ms), and can quickly restore power supply in less than one second after a power system fault is cleared.

APA, Harvard, Vancouver, ISO, and other styles

50

Liu, Chien-Hsun, Yirga Muna, Yu-Tung Chen, Cheng-Chien Kuo, and Hung-Yi Chang. "Risk Analysis of Lightning and Surge Protection Devices for Power Energy Structures." Energies 11, no. 8 (August 1, 2018): 1999. http://dx.doi.org/10.3390/en11081999.

Full text

Abstract:

This paper studies the risk data and protection measurements of lightning based on the IEC62305 standard. In addition, Visual Basic (VB) is used to build a lightning risk calculation program with a Graphical User Interface (GUI). The data structure, including environment data, line data, zone data, economic data, and protection measures is designed to simulate risk of loss of human life (R1) and risk of loss of economic value (R4). To achieve the most economical protection structure design, additional protection measurements and annual savings are considered. In the practical application, the main purpose is to discuss effective protection distances of surge protective devices (SPDs) for low-voltage power distribution. This paper takes advantage of Electromagnetic Transients Program (EMTP) to simulate the voltage of equipment with different types of loads and length of the cable. After using the protection measures, the value of risk of human life reduces form 21.299 × 10−5 to 0.439 × 10−5 and the value of risk of economic value reduces from 2696.754 × 10−5 to 98.062 × 10−5. The results mean that the protection measures let the values of the risk below the tolerance. By considering the annual cost saving. Assume the cost of protection measures, the interest rate, the depreciation rate, and the maintenance rate are 150,000 $, 4%, 5%, and 1%, respectively. The annual cost before using protective measures, the annual cost after using protective measures, the annual cost of protective measures, and the annual cost saving are $925,000, $33,635, $15,000 and $876,365, respectively. Consequently, it is feasible that the simulation result can provide users with great suggestions to choose the best installation location and achieve the most effective protection design.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!