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Journal articles on the topic 'VSC-HVDC link'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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1

Polster, Stefan, Herwig Renner, Katrin Friedl, and Olof Samuelsson. "Advanced automated emergency control strategy for embedded VSC-HVDC links." e & i Elektrotechnik und Informationstechnik 137, no. 8 (2020): 394–99. http://dx.doi.org/10.1007/s00502-020-00831-8.

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AbstractThis paper proposes an advanced emergency control strategy for embedded VSC-HVDC links after AC disturbances, such as line tripping and generation loss. The control goals are to minimize the impact of the disturbance on the AC-network, which includes improving the long-term voltage stability with utilizing possible unloading capacity of parallel AC elements. The proposed algorithm is evaluated against other control strategies for embedded VSC-HVDC links by applying it to a simple demonstration network. The test system includes all necessary VSC converter dynamics, the VSC-HVDC link cur
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2

Bidadfar, Ali, Oscar Saborío-Romano, Jayachandra Naidu Sakamuri, Vladislav Akhmatov, Nicolaos Antonio Cutululis, and Poul Ejnar Sørensen. "Coordinated Control of HVDC and HVAC Power Transmission Systems Integrating a Large Offshore Wind Farm." Energies 12, no. 18 (2019): 3435. http://dx.doi.org/10.3390/en12183435.

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The development of efficient and reliable offshore electrical transmission infrastructure is a key factor in the proliferation of offshore wind farms (OWFs). Traditionally, high-voltage AC (HVAC) transmission has been used for OWFs. Recently, voltage-source-converter-based (VSC-based) high-voltage DC (VSC-HVDC) transmission technologies have also been considered due to their grid-forming capabilities. Diode-rectifier-based (DR-based) HVDC (DR-HVDC) transmission is also getting attention due to its increased reliability and reduced offshore platform footprint. Parallel operation of transmission
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3

Khatir, Mohamed, Sid-Ahmed Zidi, Samir Hadjeri, and Mohammed-Karim Fellah. "Dynamic Performance of a Back-to-Back HVDC Station Based on Voltage Source Converters." Journal of Electrical Engineering 61, no. 1 (2010): 29–36. http://dx.doi.org/10.2478/v10187-010-0004-9.

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Dynamic Performance of a Back-to-Back HVDC Station Based on Voltage Source Converters The recent developments in semiconductors and control equipment have made the voltage source converter based high voltage direct current (VSC-HVDC) feasible. This new DC transmission is known as "HVDC Light or "HVDC Plus by leading vendors. Due to the use of VSC technology and pulse width modulation (PWM) the VSC-HVDC has a number of potential advantages as compared with classic HVDC. In this paper, the scenario of back-to-back VSC-HVDC link connecting two adjacent asynchronous AC networks is studied. Control
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Dambone Sessa, Chiarelli, and Benato. "Availability Analysis of HVDC-VSC Systems: A Review." Energies 12, no. 14 (2019): 2703. http://dx.doi.org/10.3390/en12142703.

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This work stems from the worldwide increasing need to precisely consider, in the design phase of an HVDC project, the availability of the HVDC system. In this paper, an overview of the availability assessment methods for HVDC-VSC transmission systems is presented. In particular, the state of the art of the procedures to estimate the availability of both the HVDC link reparable components and the conversion system on the basis of the converter configuration is given. The theoretical fundamentals of each method, together with their practical applications, have been described, in order to highlig
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5

Raza, Ali, Muhammad Younis, Yuchao Liu, Ali Altalbe, Kumars Rouzbehi, and Ghulam Abbas. "A Multi-Terminal HVdc Grid Topology Proposal for Offshore Wind Farms." Applied Sciences 10, no. 5 (2020): 1833. http://dx.doi.org/10.3390/app10051833.

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Although various topologies of multi-terminal high voltage direct current (MT-HVdc) transmission systems are available in the literature, most of them are prone to loss of flexibility, reliability, stability, and redundancy in the events of grid contingencies. In this research, two new wind farms and substation ring topology (2WF-SSRT) are designed and proposed to address the aforementioned shortcomings. The objective of this paper is to investigate MT-HVdc grid topologies for integrating large offshore wind farms with an emphasis on power loss in the event of a dc grid fault or mainland alter
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6

Phani Kumar, Ch S. V. S., and T. Vinay Kumar. "A Novel on Stability and Fault Ride through Analysis of Type-4 Wind Generation System Integrated to VSC-HVDC Link." International Journal of Applied Power Engineering (IJAPE) 7, no. 1 (2018): 52. http://dx.doi.org/10.11591/ijape.v7.i1.pp52-58.

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Now-a-days pollution is increasing due to “Non Renewable Energy Sources”. In order to enhance the efficiency of conventional grid and to generate the electrical power in eco-friendly way, the renewable energy sources are employed. In this paper a type 4 wind generation system is implemented to analyse the system under fault conditions and to analyse the grid stability. In the proposed system type-4 wind generation system integrated to grid through VSC-HVDC link analysis is done by considering a fault on the grid side by the system gets isolated and wind generation system transfers voltage to l
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7

Gul, Mehr, Nengling Tai, Wentao Huang, Muhammad Haroon Nadeem, Muhammad Ahmad, and Moduo Yu. "Technical and Economic Assessment of VSC-HVDC Transmission Model: A Case Study of South-Western Region in Pakistan." Electronics 8, no. 11 (2019): 1305. http://dx.doi.org/10.3390/electronics8111305.

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The southwestern part of Pakistan is still not connected to the national grid, despite its abundance in renewable energy resources. However, this area becomes more important for energy projects due to the development of the deep-sea Gwadar port and the China Pakistan Economic Corridor (CPEC). In this paper, a voltage source converter (VSC) based high voltage DC (HVDC) transmission model is proposed to link this area to the national gird. A two-terminal VSC-HVDC model is used as a case study, in which a two-level converter with standard double-loop control is employed. The proposed model has a
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8

Haleem, Naushath M., Athula D. Rajapakse, Aniruddha M. Gole, and Ioni T. Fernando. "A Selective Fault Clearing Scheme for a Hybrid VSC-LCC Multi-Terminal HVdc System." Energies 13, no. 14 (2020): 3554. http://dx.doi.org/10.3390/en13143554.

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A selective fault clearing scheme is proposed for a hybrid voltage source converter (VSC)-line commutated converter (LCC) multi-terminal high voltage direct current (HVdc) transmission structure in which two small capacity VSC stations tap into the main transmission line of a high capacity LCC-HVdc link. The use of dc circuit breakers (dc CBs) on the branches connecting to VSCs at the tapping points is explored to minimize the impact of tapping on the reliability of the main LCC link. This arrangement allows clearing of temporary faults on the main LCC line as usual by force retardation of the
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9

Eyenubo, OJ, and P. Oshevire. "IMPROVEMENT OF POWER SYSTEM QUALITY USING VSC-BASED HVDC TRANSMISSION." Nigerian Journal of Technology 36, no. 3 (2017): 889–96. http://dx.doi.org/10.4314/njt.v36i3.31.

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The HVDC technology can be represented by the combination of a Direct Current (DC) circuit with two power electronics converters, each one at a link terminal, for AC/DC and DC/AC conversion The principal characteristic of VSC-HVDC transmission is its ability to independently control the reactive and real power flow at each of the AC systems via the Point of Common Coupling (PCC). The active and reactive power is related to the power angle and the magnitude of voltage in the reference -frame selected such that the quadrature component will result in the ratio between the maximum fundamental pe
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10

Mohan, Madhan, Bhim Singh, and Bijaya Ketan Panigrahi. "Design, Control, and Modeling of a New Voltage Source Converter for HVDC System." International Journal of Emerging Electric Power Systems 14, no. 2 (2013): 123–38. http://dx.doi.org/10.1515/ijeeps-2012-0040.

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Abstract: A New Voltage Source Converter (VSC) based on neutral clamped three-level circuit is proposed for High Voltage DC (HVDC) system. The proposed VSC is designed in a multipulse configuration. The converter is operated by Fundamental Frequency Switching (FFS). A new control method is developed for achieving all the necessary control aspects of HVDC system such as independent real and reactive power control, bidirectional real and reactive power control. The basic of the control method is varying the pulse width and by keeping the dc link voltage constant. The steady state and dynamic per
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11

Sreedevi, J., V. Anuradha, Premila Manohar, and R. S. Shivakumara Aradhya. "Performance Evaluation of VSC-HVDC Link for Varying AC System Strengths." Power Research - A Journal of CPRI 14, no. 1 (2019): 105–13. http://dx.doi.org/10.33686/pwj.v14i1.142192.

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12

Castro, Luis M., Enrique Acha, and Claudio R. Fuerte-Esquivel. "A novel VSC-HVDC link model for dynamic power system simulations." Electric Power Systems Research 126 (September 2015): 111–20. http://dx.doi.org/10.1016/j.epsr.2015.05.003.

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13

Abedin, Tarek, M. Shahadat Hossain Lipu, Mahammad A. Hannan, et al. "Dynamic Modeling of HVDC for Power System Stability Assessment: A Review, Issues, and Recommendations." Energies 14, no. 16 (2021): 4829. http://dx.doi.org/10.3390/en14164829.

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High-voltage direct current (HVDC) has received considerable attention due to several advantageous features such as minimum transmission losses, enhanced stability, and control operation. An appropriate model of HVDC is necessary to assess the operating conditions as well as to analyze the transient and steady-state stabilities integrated with the AC networks. Nevertheless, the construction of an HVDC model is challenging due to the high computational cost, which needs huge ranges of modeling experience. Therefore, advanced dynamic modeling of HVDC is necessary to improve stability with minimu
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14

Li, Dan, and Ting Ting Cai. "Control Strategy for VSC-HVDC under Unbalanced Grid Voltages." Applied Mechanics and Materials 863 (February 2017): 214–19. http://dx.doi.org/10.4028/www.scientific.net/amm.863.214.

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This paper describes the use of an unbalanced control strategy to solve the faults occur in AC grid side of High voltage direct current based on Voltage Source Converter (VSC-HVDC) system. This method divides the voltage and current parameters into negative-sequence and positive-sequence. It can be obtained that the negative-sequence appears as double-frequency component in the positive-sequence synchronous reference frame; while, it appears as dc component in the negative-sequence synchronous reference frame. To mitigate the unfavourable impact of the unbalance fault, such as the DC link ripp
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15

Dadjo Tavakoli, Saman, Eduardo Prieto-Araujo, Enric Sánchez-Sánchez, and Oriol Gomis-Bellmunt. "Interaction Assessment and Stability Analysis of the MMC-Based VSC-HVDC Link." Energies 13, no. 8 (2020): 2075. http://dx.doi.org/10.3390/en13082075.

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This paper investigates the dynamic behavior of a modular multi-level converter (MMC)-based HVDC link. An overall state-space model is developed to identify the system critical modes, considering the dynamics of the master MMC and slave MMC, their control systems, and the HVDC cable. Complementary to the state-space model, an impedance-based model is also derived to obtain the minimum phase margin (PM) of the system. In addition, a relative gain array (RGA) analysis is conducted to quantify the level of interactions among the control systems of master and slave MMCs and their impacts on stabil
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16

Varela, Juan A., and Mario A. Rios. "Interconnection viability of high demand isolated area through a HVDC-VSC link." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 2 (2021): 1002. http://dx.doi.org/10.11591/ijece.v11i2.pp1002-1010.

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Electrically isolated areas are separated by a great distance and, normally, have a considerably low demand; in consequence, these are non-interconnected from the main power grid or electrical national transmission systems. Great distance and low demand are the reasons why an interconnection project in high voltage AC is not feasible in most of these cases. Nevertheless, there are some isolated areas with high power demand and even though they are separated from the main grid by large distances and hard terrains; however, it is still reasonable to think about an interconnection project. This p
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17

Chen, Yong, and Xu Zhang. "Voltage Balancing Method on Expert System for 51-Level MMC in High Voltage Direct Current Transmission." Mathematical Problems in Engineering 2016 (2016): 1–6. http://dx.doi.org/10.1155/2016/2968484.

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The Modular Multilevel Converters (MMC) have been a spotlight for the high voltage and high power transmission systems. In the VSC-HVDC (High Voltage Direct Current based on Voltage Source Converter) transmission system, the energy of DC link is stored in the distributed capacitors, and the difference of capacitors in parameters and charge rates causes capacitor voltage balance which affects the safety and stability of HVDC system. A method of MMC based on the expert system for reducing the frequency of the submodules (SMs) of the IGBT switching frequency is proposed. Firstly, MMC with 51 leve
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18

Arulampalam, A., G. Ramtharan, N. Caliao, J. B. Ekanayake, and N. Jenkins. "Simulated Onshore-Fault Ride through of Offshore Wind Farms Connected through VSC HVDC." Wind Engineering 32, no. 2 (2008): 103–13. http://dx.doi.org/10.1260/030952408784815781.

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Effective Onshore-Fault Ride Through was demonstrated by simulation for a Fixed Speed Induction Generator (FSIG) offshore wind farm connected through a Voltage Source Converter HVDC link. When a terrestrial grid fault occurs, power through the onshore converter reduces and the DC link voltage increases. A control system was then used to block the offshore converter. The offshore AC network voltage was reduced to achieve rapid power rejection. Reactive power at the onshore converter was controlled to support the AC network voltage according to the GB Grid Code requirements. Two cases, a 200 ms
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19

Alam, Md, Mohammad Abido, and Alaa Hussein. "Non-Linear Control for Variable Resistive Bridge Type Fault Current Limiter in AC-DC Systems." Energies 12, no. 4 (2019): 713. http://dx.doi.org/10.3390/en12040713.

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This paper proposes a non-linear control-based variable resistive bridge type fault current limiter (VR-BFCL) as a prospective solution to ease the effect of disturbances on voltage source converter-based high voltage DC (VSC-HVDC) systems. A non-linear controller for VR-BFCL has been developed to insert a variable optimum resistance during the inception of system disturbances in order to limit the fault current. The non-linear controller takes the amount of DC link voltage deviation as its input and provides variable duty to generate a variable effective resistance during faults. The VSC-HVDC
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20

Zhang, Lidong, Hans-Peter Nee, and Lennart Harnefors. "Analysis of Stability Limitations of a VSC-HVDC Link Using Power-Synchronization Control." IEEE Transactions on Power Systems 26, no. 3 (2011): 1326–37. http://dx.doi.org/10.1109/tpwrs.2010.2085052.

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21

Pradhan, Jatin K., Arun Ghosh, and C. N. Bhende. "Small-signal modeling and multivariable PI control design of VSC-HVDC transmission link." Electric Power Systems Research 144 (March 2017): 115–26. http://dx.doi.org/10.1016/j.epsr.2016.11.005.

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22

Jiang, Neng Qian, and Yi Feng Xie. "Coordinated Control of Large Scale Offshore Wind Farms Integrating into VSC-HVDC System." Advanced Materials Research 724-725 (August 2013): 546–54. http://dx.doi.org/10.4028/www.scientific.net/amr.724-725.546.

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VSC-HVDC has become prior transmission way in delivering off-shore wind power. This paper studies offshore wind system based on DFIG (Doubly Fed Induction Generator) wind turbine. The control strategy of the system during the normal and fault condition are studied. In the normal condition, the GSVSC are operated by controlling constant frequency, voltage and phases. During the fault condition, the GSVSC converted to limit current model and dc voltage link are controlled by DFIG-RSC converter. These control strategies are validated in good performance in PSCAD/EMTDC platform.
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23

NNACHI, Agha Francis, Josiah MUNDA, Dan Valentine NICOLAE, and Augustin Mabwe MPANDA. "Transient stability analysis of VSC HVDC transmission with power injection on the DC-link." TURKISH JOURNAL OF ELECTRICAL ENGINEERING & COMPUTER SCIENCES 23 (2015): 1834–52. http://dx.doi.org/10.3906/elk-1404-214.

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24

Moharana, Akshaya, and P. K. Dash. "Input-Output Linearization and Robust Sliding-Mode Controller for the VSC-HVDC Transmission Link." IEEE Transactions on Power Delivery 25, no. 3 (2010): 1952–61. http://dx.doi.org/10.1109/tpwrd.2010.2042469.

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25

Karaolanis, Aristeidis, Arcadio Perilla Guerra, Jose L. Rueda Torres, Mart A. A. M. van der Meijden, and Alex Alefragkis. "Generic model of a VSC-based HVDC link for RMS simulations in PSS/E." IFAC-PapersOnLine 51, no. 28 (2018): 303–8. http://dx.doi.org/10.1016/j.ifacol.2018.11.719.

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26

Hossain, Md Ismail, and Mohammad A. Abido. "Active Power Control of PV-Battery Connected MMC-HVDC System for FRT Support." Applied Sciences 10, no. 20 (2020): 7186. http://dx.doi.org/10.3390/app10207186.

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Modular multilevel converter (MMC)-based VSC system has become attractive around the world for renewable energy integration. Instead of a dynamic braking resistor, this work proposes an active power reduction technique for PV systems to support the fault ride through (FRT) of the MMC-HVDC system. In addition, it develops a battery control strategy to improve transient performance during solar radiation and temperature change due to partial shading of the PV panels. Besides, a control technique for the battery to regulate the surplus energy in the HVDC transmission network is developed. Further
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27

Faisal, Syed F., Abdul R. Beig, and Sunil Thomas. "Time Domain Particle Swarm Optimization of PI Controllers for Bidirectional VSC HVDC Light System." Energies 13, no. 4 (2020): 866. http://dx.doi.org/10.3390/en13040866.

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This paper proposes a novel technique to tune the PI controllers of a bidirectional HVDC light system by embedding particle swarm optimization directly in the Simulink model in the design procedure. The HVDC light system comprises of a rectifier station, a DC link, and an inverter station. Each converter station requires four PI controllers to be tuned in the decoupled d-q vector control scheme, and with the bidirectional HVDC system, the required PI controllers are doubled. Tuning these many controllers using conventional methods is a challenging task, especially if the parameters of the conv
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Rath, Prabodha Kumar, and Kanhu Charan Bhuyan. "Vector Control of VSC HVDC System under Single Line to Ground Fault Condition." International Journal of Applied Power Engineering (IJAPE) 7, no. 1 (2018): 59. http://dx.doi.org/10.11591/ijape.v7.i1.pp59-64.

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<span lang="EN-US">This paper proposes a model of a VSC (voltage source converter) based Back to Back HVDC system and its control technique under fault condition. From the mathematical model of the system relationship between the controlling and the controlled variables is determined to control the system parameters. An appropriate vector control technique is used to control active and reactive power and to maintain DC link voltage. The proposed controlling unit consists of outer control loop and inner control loop which effectively damped out the system oscillation and maintains the sys
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Rashed, Mohamed, S. Abulanwar, and Fathi Youssef. "H∞ Robust Controller for a Long VSC-HVDC Link Connected to a Weak Grid (Dept.E)." MEJ. Mansoura Engineering Journal 35, no. 1 (2010): 53–60. http://dx.doi.org/10.21608/bfemu.2010.123602.

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30

Li, Yong, Xuebo Qiao, Chun Chen, et al. "Integrated Optimal Siting and Sizing for VSC-HVDC-link-based Offshore Wind Farms and Shunt Capacitors." Journal of Modern Power Systems and Clean Energy 9, no. 2 (2021): 274–84. http://dx.doi.org/10.35833/mpce.2018.000538.

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31

Pipelzadeh, Yousef, Balarko Chaudhuri, and Tim C. Green. "Control Coordination Within a VSC HVDC Link for Power Oscillation Damping: A Robust Decentralized Approach Using Homotopy." IEEE Transactions on Control Systems Technology 21, no. 4 (2013): 1270–79. http://dx.doi.org/10.1109/tcst.2012.2202285.

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32

Heidary Yazdi, Seyed Saed, Jafar Milimonfared, and Seyed Hamid Fathi. "Adaptation of VSC-HVDC Connected DFIG Based Offshore Wind Farm to Grid Codes: A Comparative Analysis." International Journal of Renewable Energy Development 8, no. 1 (2019): 91. http://dx.doi.org/10.14710/ijred.8.1.91-101.

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Lack of synchronism between VSC-HVDC (Voltage Source Converter - High Voltage Direct Current) connected offshore wind farm and onshore grid leads to immunity of wind turbines to grid contingencies. Focusing on DFIG (Doubly Fed Induction Generator) based wind farms; this paper has presented a univalent control structure based on inertial and primary frequency response in which DC link voltage is utilized as synchronization interface. Based on the presented structure, four approaches based on the communication system, frequency, voltage and combined frequency and voltage modulation are utilized
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Liu, Yan, and Zhe Chen. "A Flexible Power Control Method of VSC-HVDC Link for the Enhancement of Effective Short-Circuit Ratio in a Hybrid Multi-Infeed HVDC System." IEEE Transactions on Power Systems 28, no. 2 (2013): 1568–81. http://dx.doi.org/10.1109/tpwrs.2012.2222057.

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34

Kim, Geon, Jin Sung Lee, Jin Hyo Park, Hyun Duck Choi, and Myoung Jin Lee. "A Zero Crossing Hybrid Bidirectional DC Circuit Breaker for HVDC Transmission Systems." Energies 14, no. 5 (2021): 1349. http://dx.doi.org/10.3390/en14051349.

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With the increasing demand for renewable energy power generation systems, high-power DC transmission technology is drawing considerable attention. As a result, stability issues associated with high power DC transmission have been highlighted. One of these problems is the fault current that appears when a fault occurs in the transmission line. If the fault current flows in the transmission line, it has a serious adverse effect on the rectifier stage, inverter stage and transmission line load. This makes the transmission technology less reliable and can lead to secondary problems such as fire. T
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Srikakulapu, Ramu, and Vinatha U. "Stability analysis and a hybrid controller design of grid‐connected offshore wind farm through a VSC‐HVDC transmission link." Asian Journal of Control 21, no. 4 (2019): 2017–26. http://dx.doi.org/10.1002/asjc.2194.

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Bernal-Perez, Soledad, Salvador Ano-Villalba, Ramon Blasco-Gimenez, and Johel Rodriguez-D'Derlee. "Efficiency and Fault Ride-Through Performance of a Diode-Rectifier- and VSC-Inverter-Based HVDC Link for Offshore Wind Farms." IEEE Transactions on Industrial Electronics 60, no. 6 (2013): 2401–9. http://dx.doi.org/10.1109/tie.2012.2222855.

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37

Almeida, Andrei O., Marcelo A. Tomim, Pedro M. Almeida, and Pedro G. Barbosa. "A control strategy for an offshore wind farm with the generating units connected in series with a VSC-HVDC transmission link." Electric Power Systems Research 180 (March 2020): 106121. http://dx.doi.org/10.1016/j.epsr.2019.106121.

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38

Zidi, Sid Ahmed, Mohamed Khatir, and Samir Hadjeri. "Steady - State and Transient Performance of HVDC Link Based 3-Level vsc Supplying a Passive Load = Performances en Régime Stationnaire et Transitoire de la Liaison CCHT Utilisant le VSC 3 Niveaux Alimentant une Charge Passive." Synthèse : Revue des Sciences et de la Technologie, no. 31 (2015): 80–89. http://dx.doi.org/10.12816/0027859.

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39

Rekik, Asma, and Ghada Boukettaya. "State Space Modeling and Stability Analysis of a VSC-HVDC System for Exchange of Energy." European Journal of Electrical Engineering 22, no. 6 (2020): 413–26. http://dx.doi.org/10.18280/ejee.220603.

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Nowadays, relevant actors are searching for solutions to produce energy with a low impact on the environment. Indeed, transmitting power via large distances with maintaining low losses is one of the main challenges. To improve electricity communication between countries and offshore wind, a new interconnections line must be built. Therefore, Voltage Source Converter High Voltage Direct Current (VSC-HVDC) transmission is incoming as the exceptive technology in order to address the challenges related to the integration of future offshore wind power plants. In spite of its many advantages, VSC-ba
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40

Wu, Xinglong, Zheng Xu, and Zheren Zhang. "Power Stability Analysis and Evaluation Criteria of Dual-Infeed HVDC with LCC-HVDC and VSC-HVDC." Applied Sciences 11, no. 13 (2021): 5847. http://dx.doi.org/10.3390/app11135847.

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This paper analyzes the power stability of the hybrid dual-infeed high-voltage direct-current (HVDC) system containing a line commutated converter-based HVDC (LCC-HVDC) and a voltage source converter-based HVDC (VSC-HVDC). First, the concept and the calculation method of power stability for the hybrid dual-infeed HVDC system are introduced. Second, the influence of VSC-HVDC on the power stability of the system is investigated. Third, the relationship between the power stability and the effective short circuit ratio (ESCR) is discussed under different system parameters. Then, the value range of
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Huu, Duc Nguyen. "A Novel Adaptive Control Approach Based on Available Headroom of the VSC-HVDC for Enhancement of the AC Voltage Stability." Energies 14, no. 11 (2021): 3222. http://dx.doi.org/10.3390/en14113222.

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Increasing offshore wind farms are rapidly installed and planned. However, this will pose a bottle neck challenge for long-distance transmission as well as inherent variation of their generating power outputs to the existing AC grid. VSC-HVDC links could be an effective and flexible method for this issue. With the growing use of voltage source converter high-voltage direct current (VSC-HVDC) technology, the hybrid VSC-HVDC and AC system will be a next-generation transmission network. This paper analyzes the contribution of the multi VSC-HVDC system on the AC voltage stability of the hybrid sys
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Xian, Wenyuan, Ran Ding, Ying Qiao, Zongxiang Lu, Shangqiang Li, and Hong Lin. "Steady-state Operation Area of VSC-HVDC Converter Station Connecting Renewable Energy Cluster by Isolated Network." E3S Web of Conferences 182 (2020): 02003. http://dx.doi.org/10.1051/e3sconf/202018202003.

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When the large-scale renewable power island is connected to VSC-HVDC transmission system, we should figure out the steady-state operation area of VSC-HVDC converter station. Based on the equivalent model of renewable energy island, the constraints of VSC-HVDC converter station are analyzed, and a fast method for calculating steady-state operation area of converter station is presented in this paper. The influence of equivalent line impedance of renewable energy island, transformer ratio of converter station and voltage setting value of grid-connected point on steady-state operation area of con
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43

Sanchez Garciarivas, Rafael, Diego Rasilla Gonzalez, Javier Agustin Navarro, et al. "VSC-HVDC and Its Applications for Black Start Restoration Processes." Applied Sciences 11, no. 12 (2021): 5648. http://dx.doi.org/10.3390/app11125648.

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System reliability is a measure of an electric grid system’s ability to deliver uninterrupted service at the proper voltage and frequency. This property of the electric system is commonly affected by critical processes, such as a total blackout. The electric system restoration is a complex process which consists of returning generators, transmission system elements, and restoring load following an outage of the electric system. However, the absence of a generator or unit of black start capabilities may worsen the duration and effects of blackouts, having severe consequences. Black start capabi
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44

Pei, Xiangyu, Guangfu Tang, and Shengmei Zhang. "A Novel Pilot Protection Principle Based on Modulus Traveling-Wave Currents for Voltage-Sourced Converter Based High Voltage Direct Current (VSC-HVDC) Transmission Lines." Energies 11, no. 9 (2018): 2395. http://dx.doi.org/10.3390/en11092395.

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Protection for transmission lines is one of crucial problems that urgently to be solved in constructing the future high-voltage and large-capacity voltage-sourced converter based high voltage direct current (VSC-HVDC) systems. In order to prevent the DC line fault from deteriorating further due to the failure of main protection, a novel pilot protection principle for VSC-HVDC transmission lines is proposed in this paper. The proposed protection principle is based on characteristics of modulus traveling-wave (TW) currents. Firstly, the protection starting-up criterion is constructed by using th
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45

Sang, Yiyan, Bo Yang, Hongchun Shu, Na An, Fang Zeng, and Tao Yu. "Fault Ride-Through Capability Enhancement of Type-4 WECS in Offshore Wind Farm via Nonlinear Adaptive Control of VSC-HVDC." Processes 7, no. 8 (2019): 540. http://dx.doi.org/10.3390/pr7080540.

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This paper proposes a perturbation estimation-based nonlinear adaptive control (NAC) for a voltage-source converter-based high voltage direct current (VSC-HVDC) system which is applied to interconnect offshore large-scale wind farms to the onshore main grid in order to enhance the fault ride-through (FRT) capability of Type-4 wind energy conversion systems (WECS). The VSC-HVDC power transmission system is regraded as a favourable solution for interconnecting offshore wind farms. To improve the FRT capability of offshore power plants, a de-loading strategy is investigated with novel advanced co
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46

Jiahui, Wu, Wang Haiyun, Wang Weiqing, and Zhang Qiang. "Three-terminal Hybrid HVDC Transmissions Control Strategies for Bundled Wind-thermal Power Plants." Open Electrical & Electronic Engineering Journal 10, no. 1 (2016): 156–65. http://dx.doi.org/10.2174/1874129001610010156.

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This paper evaluates application feasibility of a Hybrid Multi-terminal HVDC system and wind-thermal-bundled plants simulated in DIgSLIENT PowerFactory environment. The proposed hybrid MTDC system consists of two line-communicated converters (LCC), which are connected to both wind farms and thermal power plants, and one voltage source converter (VSC) at the grid side. Control strategies for each converter are designed to handle this system under different disturbance conditions. Simulation results show that the wind power fluctuation can be compensated by the thermal-generated power. Results d
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47

Oni, Oluwafemi Emmanuel, Kamati I. Mbangula, and Innocent E. Davidson. "A Review of LCC-HVDC and VSC-HVDC Technologies and Applications." Transactions on Environment and Electrical Engineering 1, no. 3 (2016): 68. http://dx.doi.org/10.22149/teee.v1i3.29.

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High Voltage Direct Current (HVDC) systems has been an alternative method of transmitting electric power from one location to another with some inherent advantages over AC transmission systems. The efficiency and rated power carrying capacity of direct current transmission lines highly depends on the converter used in transforming the current from one form to another (AC to DC and vice versa). A well configured converter reduces harmonics, increases power transfer capabilities, and reliability in that it offers high tolerance to fault along the line. Different HVDC converter topologies have be
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Zhang, Yibo, Xu Tian, Cong Wang, and Hong Cheng. "Sub-/Super-SCI Influencing Factors Analysis of VSC-HVDC and PMSG-Wind Farm System by Impedance Bode Criterion." Electronics 10, no. 15 (2021): 1865. http://dx.doi.org/10.3390/electronics10151865.

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A sub-/super-synchronous interaction (sub-/super-SCI) can occur between a voltage source converter-based high-voltage direct current (VSC-HVDC) and the permanent magnet synchronous generator (PMSG)-based wind farms with long AC transmission lines. However, the influencing factors have not been properly analyzed. In this paper, these are deconstructed and mathematically analyzed from detailed small-signal impedance equations in the dq-frame and the corresponding Bode stability criterion. Distinguishing conclusions from existing papers are obtained by studying the controllers’ bandwidths instead
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Xu, Yan, Di Feng Shi, and Shao Bo Yan. "Boundary Protection Strategy for the VSC-MTDC under DC Faults." Applied Mechanics and Materials 448-453 (October 2013): 2030–35. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.2030.

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Multi-terminal HVDC transmission system based on voltage source converter is a promising topology for the integration of the renewable energy sources. The fault characteristics of VSC-MTDC system under DC side faults was analyzed in this paper, as well as the particular requirements for the protection strategy. On the basis of the work metioned above, a four-terminal DC connected transmission system model was built in PSCAD/EMTDC. The boundary protection algorithm was proposed and the wavelet analysis was introduced. The protection scheme for VSC-MTDC transmission lines is based on the attenua
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Zhang, Lidong, Lennart Harnefors, and Hans-Peter Nee. "Modeling and Control of VSC-HVDC Links Connected to Island Systems." IEEE Transactions on Power Systems 26, no. 2 (2011): 783–93. http://dx.doi.org/10.1109/tpwrs.2010.2070085.

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