Relevant bibliographies by topics / Thyristor switched capacitor (TSC)

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Thyristor switched capacitor (TSC)'

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

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Journal articles on the topic "Thyristor switched capacitor (TSC)"

1

Yan, Tian Xiang, Xiao Lan Xie, Xin Yu Chen, and Peng Niu. "Analysis of Thyristor Switched Three-Phase Capacitor." Advanced Materials Research 722 (July 2013): 311–16. http://dx.doi.org/10.4028/www.scientific.net/amr.722.311.

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it can limit the reactive power transmission to improve the voltage quality of power grid by installing parallel capacitors for reactive power compensation. But due to presence of transient transition process during power capacitors switching, it will seriously affect the service life of power capacitors and the safe operation of power system if the switching process of capacitors is not properly controlled. Firstly, this article described the fundamental principle and switching conditions of Thyristor Switched Capacitor (TSC). Secondly, the selection of switching time was analyzed for Thyristor Switched Three-phase Capacitor (TSTC). Finally, the simulation for TSTC was carried out by using MATLAB to verify the feasibility of analysis.
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Bimali, Bibek, Sushil Uprety, and Ram Prasad Pandey. "VAR Compensation on Load Side using Thyristor Switched Capacitor and Thyristor Controlled Reactor." Journal of the Institute of Engineering 16, no. 1 (April 12, 2021): 111–19. http://dx.doi.org/10.3126/jie.v16i1.36568.

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Generally, AC loads are the inductive loads which are reactive in nature. These loads, thus, demand and draw reactive power from the supply source. If these loads draw large lagging current from the source, this will cause excessive voltage drop in the line, which can even cause the voltage collapsing in the line itself if the drop in the line is excessively high. VAR compensation means efficient management of reactive power locally to improve the performance of AC power systems. In this paper, Static VAR Compensator, using TSC (Thyristor Switched Capacitor) and TCR (Thyristor Controlled Reactor), is designed and simulated in MATLAB to maintain the power factor of power system nearly to unity at all times. TSC and TCR are basically shunt connected capacitors and inductor respectively whose switching (of capacitors) and firing angle control (of inductor) operations are carried out using thyristors. The purpose of capacitors is to supply lagging VAR as per the demand by the connected loads and the overcompensation due to excess VAR generated by the discrete set of turned on capacitors are absorbed by the adjustable inductive reactance of the inductor in TCR branch through firing angle control mechanism.
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Onah, A. J., E. E. Ezema, and I. D. Egwuatu. "An R-L Static Var Compensator (SVC)." European Journal of Engineering Research and Science 5, no. 12 (December 14, 2020): 46–51. http://dx.doi.org/10.24018/ejers.2020.5.12.2253.

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Traditional static var compensators (SVCs) employ shunt reactors and capacitors. These standard reactive power shunt elements are controlled to produce rapid and variable reactive power. Power electronic devices like the thyristor etc. are used to switch them in or out of the network to which they are connected in response to system conditions. There are two basic types, namely the thyristor-controlled reactor (TCR), and the thyristor-switched capacitor (TSC). In this paper we wish to investigate a compensator where the reactor or capacitor is replaced by a series connected resistor and reactor (R-L). The performance equations are derived and applied to produce the compensator characteristics for each of the configurations. Their performances are compared, and the contrasts between them displayed. All three configurations are made to achieve unity power factor in a system.
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Wang, Li, Yan Qing Pang, Zhi Ming Song, Tang Sheng Xun, Hong Yu Gao, Yong Hong Huo, Tie Jun Hu, and Zhi Guang Ma. "Trigger Circuit Design for Series SCRs Valve Bank." Advanced Materials Research 468-471 (February 2012): 2912–15. http://dx.doi.org/10.4028/www.scientific.net/amr.468-471.2912.

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This article introduces the trigger circuit of series SCRs valve and a new trigger circuit is designed for series SCRs valve of TSC. The trigger circuit is driven by voltage source and a high voltage cable is used for insulation of the pulse transformer. The trigger circuit has simple structure and a steep front of gate-current. This unit is used in 10 kV thyristor switched capacitor (TSC) reactive power compensation device, and the results verify its feasibility.
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Shen, Jing Shuang, Chuan Wen Jiang, Yu Jiao Liu, and Wei Jun Yun. "Energy Saving Analysis of TSC&APF Integrated Device." Advanced Materials Research 347-353 (October 2011): 2559–63. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.2559.

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This paper analyzes the construction and control principle of Thyristor Switched Capacitor(TSC) and Active Power Filter(APF) integrated device. An harmonics detection method based on the instantaneous reactive power theory is also discussed. This method is effective to apply to TSC&APF integrated device and can get better result to eliminate the harmonics and compensate reactive power. A new integrated device which consists of TSC and APF is developed with this method. The application in the automobile industry shows that this device is correct and effective. It is a favorable model of improving the power quality and save the energy.
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Yang, Pan Pan, Chen Lu Dong, and Yang Wang. "Research on TSC Type Reactive Power Compensation Control System for Coal Mine Based on STM32." Applied Mechanics and Materials 716-717 (December 2014): 1551–54. http://dx.doi.org/10.4028/www.scientific.net/amm.716-717.1551.

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As the increasing equipment of high power and motor load put into coal mine enterprise, the quality of power supply is decreasing, such as low power factor and large voltage fluctuation, etc. After analyzing the theory and algorithm of reactive power compensation in details, studying a system based on STM32 thyristor switched capacitor (TSC) reactive power compensation control system, which includes compensation, control algorithms of nine zone diagram, controller hardware design and software design. The experimental results show that, this TSC system can realize a faster and more accurate measurement and switching, which have an obvious effect of compensation, and a safe and efficient automatic operation of the system.
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Saied, Mohamed M. "Analysis and Minimization of the Oscillatory Currents in Multibranch Thyristor-Switched Capacitors." Advances in Power Electronics 2012 (December 17, 2012): 1–9. http://dx.doi.org/10.1155/2012/643716.

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This paper addresses the switching transients in multibranch thyristor-switched capacitors (TSCs). The current transients following the addition of a branch to a group of already connected ones are analyzed. Expressions for both its fundamental and its oscillatory components are given in terms of the power network voltage, frequency, short-circuit level, and the switching angle. The relations include also the compensator parameters such as its total reactive power rating, total number of branches, the number of already connected branches, and the initial voltage on the capacitor involved in the switching transient. An expression for the distortion of the supply current is also given. A minimization procedure is presented for identifying the optimal switching angle leading to the least magnitude of the oscillatory current. Switching when the instantaneous supply voltage is equal to the initial voltage will result in the least oscillatory current only in the two special cases of a single-branch compensator, or in the switching of the first branch of a multi-branch TSC. The effect of both the total number of branches and the branch switching steps on the oscillatory current and on the optimal switching angle is also discussed. The advantage of the suggested procedure is demonstrated by investigating several case studies.
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Ahmed, Osama, and Abdul Wali Abdul Ali. "Simulating and Building an Appliance Clustering Fuzzified SVC for Single Phase System." ELEKTRIKA- Journal of Electrical Engineering 20, no. 1 (April 30, 2021): 34–42. http://dx.doi.org/10.11113/elektrika.v20n1.235.

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A power system suffers from losses that can cause tragic consequences. Reactive power presence in the power system increases system losses delivered power quality and distorted the voltage. As a result, many studies are concerned with reactive power compensation. The necessity of balancing resistive power generation and absorption throughout a power system gave birth to many devices used for reactive power compensation. Static Var Compensators are hunt devices used for the generation or absorption of reactive power as desired. SVCs provide fast and smooth compensation and power factor correction. In this paper, a Fuzzified Static Var Compensator consists of Thyristor Controlled Reactor (TCR) branch and Thyristor Switched Capacitors branches for reactive power compensation and power factor correction at the load side is presented. The system is simulated using Simulink using a group of blocks and equations for measuring power factor, determining the weightage by which the power factor is improved, determining the firing angle of TCR branch, and capacitor configuration of TSC branches. Furthermore, a hardware prototype is designed and implemented with its associated software; it includes a smart meter build-up for power monitoring, which displays voltage, current, real power, reactive power and power factor and SVC branches with TRIAC as the power switching device. Lastly, static and dynamic loads are used to test the system's capability in providing fast response and compensation. The simulation results illustrated the proposed system's capability and responsiveness in compensating the reactive power and correcting the power factor. It also highlighted the proportional relation between reactive power presence and the increased cost in electricity bills. The proposed smart meter and SVC prototypes proved their capabilities in giving accurate measurement and monitoring and sending the data to the graphical user interface through ZigBee communication and power factor correction. Reactive power presence is an undesired event that affects the equipment and connected consumers of a power system. Therefore, fast and smooth compensation for reactive power became a matter of concern to utility companies, power consumers and manufacturers. Therefore, the use of compensating devices is of much importance as they can increase power capacity, regulate the voltage and improve the power system performance.
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Bhattacharyya, B., Vikash Kumar Gupta, and Sanjay Kumar. "Comparative study of GA & DE algorithm for the economic operation of a power system using FACTS devices." Archives of Electrical Engineering 62, no. 4 (December 1, 2013): 541–52. http://dx.doi.org/10.2478/aee-2013-0044.

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Abstract The problem of improving the voltage profile and reducing power loss in electrical networks must be solved in an optimal manner. This paper deals with comparative study of Genetic Algorithm (GA) and Differential Evolution (DE) based algorithm for the optimal allocation of multiple FACTS (Flexible AC Transmission System) devices in an interconnected power system for the economic operation as well as to enhance loadability of lines. Proper placement of FACTS devices like Static VAr Compensator (SVC), Thyristor Controlled Switched Capacitor (TCSC) and controlling reactive generations of the generators and transformer tap settings simultaneously improves the system performance greatly using the proposed approach. These GA & DE based methods are applied on standard IEEE 30 bus system. The system is reactively loaded starting from base to 200% of base load. FACTS devices are installed in the different locations of the power system and system performance is observed with and without FACTS devices. First, the locations, where the FACTS devices to be placed is determined by calculating active and reactive power flows in the lines. GA and DE based algorithm is then applied to find the amount of magnitudes of the FACTS devices. Finally the comparison between these two techniques for the placement of FACTS devices are presented.
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Panfilov, Dmitry Ivanovich, Ahmed ElGebaly, Alexander Nikolaevich Rozhkov, and Michael Astashev. "Control Strategy of Thyristors Switched SVCs with High Power Quality." Transactions on Environment and Electrical Engineering 3, no. 1 (December 4, 2018): 15. http://dx.doi.org/10.22149/teee.v3i1.123.

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In this paper, new static VAR compensators SVCs schemes for inductive and capacitive reactive power are developed. The provided schemes improve the flexibility and power system quality of SVCs by developing new circuit topologies with new control strategy of the reactive power. New circuit schemes are introduced for thyristors switched reactors TSR and thyristors switched capacitors TSC to design harmonic-free SVC with higher discrete number of reactive power levels. This paper provides the control algorithm and block diagram of the new SVCs schemes. The switching strategies of TSR and TSC are described and implemented. The new scheme of TSC requires special modifications to decrease transient effects and implementation of specific switching strategies to acquire SVC with high power quality indexes.
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Dissertations / Theses on the topic "Thyristor switched capacitor (TSC)"

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Uz, Eda. "Design And Implementation Of Thyristor Switched Shunt Capacitors." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611616/index.pdf.

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This research work deals with the analysis, design and implementation of thyristor switched plain capacitor banks and thyristor switched shunt filter banks. Performances of various thyristor switched capacitor (TSC) topologies are also investigated by simulations. The theoretical findings have been verified by carrying out experimental work on two prototypes implemented within the scope of this research work, one is a wye-connected laboratory prototype and the other is a delta-connected application prototype integrated to some of the SVCs existing in Turkish Coal Enterprise s Plants. The advantages of back-to-back connected thyristor switches over conventional electromechanical contactors are also made clear by conducting an intensive experimental work in the laboratory. A good correlation have been obtained between theoretical and experimental results.
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Taylor, Jason Ashley. "THYRISTOR SWITCHED CAPACITOR MITIGATION SYSTEM FOR CUSTOMER SIDE APPLICATIONS." MSSTATE, 2002. http://sun.library.msstate.edu/ETD-db/theses/available/etd-03242002-183457/.

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Thyristor switched capacitors (TSCs) have found an ever increasing role in the operation of flexible AC transmission systems or FACTS. The ability of these static var compensators to regulate the voltage by consuming or supplying reactive power quickly is not only viable for transmission but is an effective measure for increasing power quality at a distribution level. The proposed design uses a variable number of logically switched capacitors to supply reactive generation per reactive demand. The design ensures that the capacitors are safely switched into service, reactive demand is accurately calculated, and the TSC will respond quickly to changes in demand. While providing fast and safe operation, the conceptual design is also flexible enough to allow for optimization of the TSC to meet the demands of specific loads.
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Johansson, Nicklas. "Control of Dynamically Assisted Phase-shifting Transformers." Licentiate thesis, Stockholm : Elektrotekniska system, Kungliga Tekniska högskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4653.

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Book chapters on the topic "Thyristor switched capacitor (TSC)"

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Preethi, B., and B. V. Sumangala. "Voltage Stabilization Through Reactive Power Injection at Secondary Terminals of Distribution Level Feeders—Using Thyristor-Switched Capacitor." In Lecture Notes in Electrical Engineering, 547–56. New Delhi: Springer India, 2013. http://dx.doi.org/10.1007/978-81-322-1157-0_56.

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Conference papers on the topic "Thyristor switched capacitor (TSC)"

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Gelen, Ayetul, and Tankut Yalcinoz. "The behavior of Thyristor Switched Capacitor (TSC) installed in an infinite bus system." In IEEE EUROCON 2009 (EUROCON). IEEE, 2009. http://dx.doi.org/10.1109/eurcon.2009.5167696.

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Divyam, Ayushi Saxena, Bharat Singh, and J. N. Rai. "Comparative Study of Static VAR Compensation Techniques — Thyristor Switched Reactor and Thyristor Switched Capacitor." In 2020 5th International Conference on Communication and Electronics Systems (ICCES). IEEE, 2020. http://dx.doi.org/10.1109/icces48766.2020.9137906.

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Wang, Li-guo, Yu Xia, Xiang Ren, Dian-guo Xu, and Zhuang Xu. "Passive Control on the Negative Effect of Thyristor Switched Capacitor (I)." In 2011 Asia-Pacific Power and Energy Engineering Conference (APPEEC). IEEE, 2011. http://dx.doi.org/10.1109/appeec.2011.5748810.

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Deotale, Bhushan D., and Sudhir R. Paraskar. "Transient stability improvement using Thyristor Switched Series Capacitor (TSSC) FACTS device." In 2016 IEEE Students' Conference on Electrical, Electronics and Computer Science (SCEECS). IEEE, 2016. http://dx.doi.org/10.1109/sceecs.2016.7509268.

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Kallaste, A., L. Kutt, V. Bolgov, and K. Janson. "Reactive power compensation for spot welding machine using thyristor switched capacitor." In 2008 Power Quality and Supply Reliability Conference (PQ). IEEE, 2008. http://dx.doi.org/10.1109/pq.2008.4653768.

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Rekha, S., and V. Keshava Murthy. "Dynamic power factor regulation using thyristor switched capacitor for industrial loads." In 2017 International Conference On Smart Technologies For Smart Nation (SmartTechCon). IEEE, 2017. http://dx.doi.org/10.1109/smarttechcon.2017.8358632.

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Ohtake, Asuka, Fei Zhang, Takafumi Fujimoto, and Naoyuki Nakayama. "Development of 200-Mvar class thyristor switched capacitor supporting fault ride-through." In 2014 International Power Electronics Conference (IPEC-Hiroshima 2014 ECCE-ASIA). IEEE, 2014. http://dx.doi.org/10.1109/ipec.2014.6870053.

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Zebardast, A., and H. Mokhtari. "Effect of Low-Voltage Thyristor-Switched Capacitor Banks on Electrical Energy Consumption." In 2006 International Conference on Power System Technology. IEEE, 2006. http://dx.doi.org/10.1109/icpst.2006.321891.

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da Silveira, Eben-ezer Prates, Robson Celso Pires, Antonio Tadeu Lyrio de Almeida, Angelo Jose, and Junqueira Rezek. "Direct on line starting induction motor with Thyristor Switched Capacitor based voltage regulation." In 2009 Brazilian Power Electronics Conference. COBEP 2009. IEEE, 2009. http://dx.doi.org/10.1109/cobep.2009.5347707.

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Mahela, Om Prakash, Gulhasan Ahmad, and Sheesh Ram Ola. "Detection of Transmission Line Faults in the Presence of Thyristor Switched Capacitor Using Stockwell Transform." In 2018 IEEE International Students' Conference on Electrical, Electronics and Computer Science (SCEECS). IEEE, 2018. http://dx.doi.org/10.1109/sceecs.2018.8546980.

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