Applications of thyristor controlled series compensator in power system: An overview

Jamhoria, Sangeeta; Srivastava, Laxmi

doi:10.1109/epscicon.2014.6887516

Cited by 13 publications

(5 citation statements)

References 21 publications

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“…The TCR is composed of an inductor connected with two thyristors connected in anti-parallel and each thyristor is controlled during a half period. Modifying the firing angle of thyristors results in a variation of the reactance control as a function of the load demand [1][2][3]. Because of the inductor, the current flowing through the TCR is strongly inductive.…”

Section: Introductionmentioning

confidence: 99%

Impact of the Integration of a STATCOM Controlled by LQG/H2 Regulator in an Energy System

Mekki¹,

Boulouiha²,

Allali³

et al. 2021

EJEE

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Nowadays, the reactive power consumption is becoming a serious problem for electricity network management. To overcome this problem, several solutions are proposed in the literature. In the present study, the static reactive power compensator (STATCOM) solution is used to keep the network voltage within its rated range. The STATCOM is modeled in the axes of Park reference frame and is driven controlled by a SVPWM strategy. Its control scheme is based on a multivariable Linear Quadratic Gaussian (LQG/H2) controller, which has the advantage of being applied to systems whose condition is not measured. Simulations are performed using the MATLAB/SIMULINK software. Results are presented, compared and discussed.

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Section: Introductionmentioning

confidence: 99%

Impact of the Integration of a STATCOM Controlled by LQG/H2 Regulator in an Energy System

Mekki¹,

Boulouiha²,

Allali³

et al. 2021

EJEE

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show abstract

“…The TCSC device comprises of a thyristor‐controlled variable capacitor protected by a metal‐oxide varistor (MOV) and an air‐gap. It offers several benefits, such as fast and continuous control of the series compensation level, dynamic control of power flow, reduction of system losses, mitigation of sub‐synchronous resonance and improved transient stability [5, 6]. The UPFC consists of both the static synchronous compensator (STATCOM) and the static synchronous series compensator (SSSC).…”

Section: Introductionmentioning

confidence: 99%

State‐of‐the‐art on the protection of FACTS compensated high‐voltage transmission lines: a review

Biswas

Nayak

2018

High Voltage

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In recent years, the inclusion of flexible AC transmission systems (FACTS)-based compensating devices such as a thyristor-controlled series capacitor (TCSC) and a unified power flow controller (UPFC) has been increased in high-voltage power transmission systems due to numerous technical and economical benefits. However, the operation of such FACTS devices introduces harmonics and non-linearity in power system and causes fast changes in line impedance. As a result, the most widely used fixed impedance setting based distance relaying scheme finds limitation in protecting such compensated lines. Significant research has been carried out in recent years to develop new algorithms and methods to address the problem. This paper presents a comprehensive review of recent developments in the protection of TCSC/UPFC compensated high-voltage transmission lines. The relative merits and demerits of each of the available methods are also presented for comparison. Prior to detail review, the impact of TCSC/UPFC on distance protection is evaluated by using data generated through EMTDC/ PSCAD on a 400 kV two-bus test power system. This study can be useful to both academic researchers and practicing engineers to gain insight on the protection of FACTS compensated transmission lines and for further development of newer algorithms. 2 FACTS compensated high-voltage transmission lines: protection challenges The basic configuration and the different operating modes of TCSC and UPFC controllers and their impacts on the distance protection are well documented in [10-16], respectively. However, for the sake of completeness, in this section, the impact of TCSC/UPFC compensated transmission lines on the performance of distance relay is evaluated by using data simulated through EMTDC/ PSCAD on a 400 kV test power system.

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“…Flexible alternating current transmission systems (FACTS) based on power electronics have been developed to improve the performance of weak alternating current (AC) systems and to make long distance AC transmission systems feasible [1,2]. Series compensation with TCSC has various applications in power system control such as readjustment of power flow, transient stability control, power oscillation damping control and sub-synchronous resonance mitigation because of its continuously varying reactance capability [3,4].…”

Section: Introductionmentioning

confidence: 99%

Modeling for Development of Simulation Tool: Impact of TCSC on Apparent Impedance Seen by Distance Relay

Khoa

Tung

2018

Eng. Technol. Appl. Sci. Res.

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The impact of thyristor controlled series capacitor (TCSC) on distance protection relays in transmission lines is analyzed in this paper. Voltage and current data are measured and collected at the relay locations to calculate the apparent impedance seen by distance protection relays in the different operating modes of the TCSC connected to the line. Short-circuit faults which occur at different locations on the power transmission line are considered in order to locate the fault for the purpose of evaluating the impact of TCSC on the distance protection relay. Matlab/Simulink simulation software is used to model the power transmission line with two sources at the two ends. Voltage source, transmission line, TCSC, voltage and current measurement, and discrete Fourier transform (DFT) blocks are integrated into the model. Simulation results show the impact of TCSC on the distance protection relay and determine the apparent impedance and fault location in the line.

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Applications of thyristor controlled series compensator in power system: An overview

Cited by 13 publications

References 21 publications

Impact of the Integration of a STATCOM Controlled by LQG/H2 Regulator in an Energy System

Impact of the Integration of a STATCOM Controlled by LQG/H2 Regulator in an Energy System

State‐of‐the‐art on the protection of FACTS compensated high‐voltage transmission lines: a review

Modeling for Development of Simulation Tool: Impact of TCSC on Apparent Impedance Seen by Distance Relay

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