A thyristor controlled series capacitor design for research laboratory application

Rigby, B.S.; Ndlovu, C.K.; Harley, R.G.

doi:10.1109/afrcon.1999.821889

Cited by 10 publications

(4 citation statements)

References 6 publications

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“…where m is the number of active capacitors. If all capacitors are bypassed the equivalent capacitance becomes CT = 0F [13][14][15]. In order to correct the power factor and therefore increase the output power, the capacitance of the system XC should be equal to inductance XL as shown in Equation:…”

Section: Thyristor Switched Series Capacitor Rectifier (Tssc)mentioning

confidence: 99%

Comparison between Thyristor Switched Series Capacitors and Thyristor Switched Parallel Capacitors for wind power systems - A Simulation Study

Kalpaktsoglou

Tsiakalos

Pouros

et al. 2021

Wseas Transactions on Power Systems

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This paper compares by simulation the Thyristor Switched Series Capacitors (TSSC) Circuit with the Thyristor Switched Parallel Capacitors (TSPC) Circuit for wind turbines. The well-known TSSC circuit belongs to the Controlled Series Capacitor (CSC) circuits that have been used in power transmission lines in order to correct the power factor and improve the performance of the electrical system. Such a circuit can be used in wind power systems to improve and maximize the efficiency of a wind turbine. A typical direct-drive wind power system employs variable speed electric generators, but the downside is that systems like that suffer from high inductive reactance. A TSSC circuit, therefore, is able to counteract for any reactive losses, and improve the power factor as well as the efficiency. The main issue with the TSSC circuit is the use of a high number of capacitors that must be connected in series, which can increase the cost and the maintenance of the controller. This paper introduces a novel circuit with different control technique than the TSSC that employs capacitors in parallel configuration. The novel TSPC circuit was simulated in PSPICE and the benefits as well as the drawbacks are described

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Section: Thyristor Switched Series Capacitor Rectifier (Tssc)mentioning

confidence: 99%

Comparison between Thyristor Switched Series Capacitors and Thyristor Switched Parallel Capacitors for wind power systems - A Simulation Study

Kalpaktsoglou

Tsiakalos

Pouros

et al. 2021

Wseas Transactions on Power Systems

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“…It has greater influence on TCSC characteristics as well as the ratings, as will be explained below. The value of the inductor (L) was chosen such that the series LC resonant frequency does not coincide with any characteristic harmonic of the fundamental frequency [1] [7]. Based on this, the value of L was calculated using equation (5) for a series resonant frequency of 150Hz (2.5*60Hz).…”

Section: B Choice Of Inductor (L)mentioning

confidence: 99%

Design of TCSC for classroom and research applications on an analog model power system

Yedidi

Johnson

2006

2006 IEEE Power Engineering Society General Meeting

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This paper discusses the development of a Thyristor Controlled Series Capacitor (TCSC) with closed loop controls for use with the Analog Model Power System (AMPS) at the University of Idaho (UI). An overview of the AMPS is presented. The TCSC circuit and characteristics are discussed in brief. Next the determination of TCSC parameters are discussed. With these parameters the possible modes of operation of TCSC were simulated. Then potential closed loop control schemes were discussed and simulated in ATP. With this background the realization of the TCSC in hardware is discussed. Finally the hardware results are compared with that of simulated results.

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“…Field tests had been performed to examine such benefit [7]- [9]. As the field test of the TCSC may not be always possible, in order to investigate the performance of the TCSC, it is, therefore, necessary to develop experiment TCSC prototypes with relatively lower voltage and current level for laboratory research purpose [10]- [12].…”

mentioning

confidence: 99%

Effects of the Quality Factor of reactor on the TCSC characteristics and the Dual Impedance Solution Phenomenon

Cheng

Jiang

Zhao³

et al. 2006

2006 International Conference on Power System Technology

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This paper investigates how the reactor's quality factor (labeled as Q at power frequency) affects the characteristics of TCSC and what principle should be followed in designing an experimental TCSC setup. Since no close-form representation of the fundamental frequency impedance (EFFI) against the firing angle can be obtained considering the quality factor of the reactor, detailed electromagnetic transient simulation is employed for the investigation. Results show that, under the same firing condition, the EFFI of TCSC using reactor with low Q value may present considerable resistance component compared with that of the ideal case when Q is infinite. Moreover, it is found that the EFFI of the TCSC using a reactor with limited Q can be either inductive or capacitive for a specified firing angle when it is fired in a line current reference mode. This so-called dual impedance solution phenomenon is analyzed in detail in the paper.

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A thyristor controlled series capacitor design for research laboratory application

Cited by 10 publications

References 6 publications

Comparison between Thyristor Switched Series Capacitors and Thyristor Switched Parallel Capacitors for wind power systems - A Simulation Study

Comparison between Thyristor Switched Series Capacitors and Thyristor Switched Parallel Capacitors for wind power systems - A Simulation Study

Design of TCSC for classroom and research applications on an analog model power system

Effects of the Quality Factor of reactor on the TCSC characteristics and the Dual Impedance Solution Phenomenon

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