Multivariable sampled regulators for the co-ordinated control of STATCOM AC and DC voltage

Wang, H.F.; Li, F.

doi:10.1049/ip-gtd:20000008

Cited by 38 publications

(11 citation statements)

References 7 publications

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“…Presently the most used techniques for controller design are the Proportional Integration (PI), Linear Quadratic Regulator (LQR) and pole placement controller, [10,11]. But LQR and pole placement algorithms give the quick response in comparison to PI algorithm and LQR is the optimal theory of pole placement method and describes the optimal pole location based on two cost function [12].…”

Section: Quick Startingmentioning

confidence: 99%

Improved performance of LQR controller in CSC based STATCOM using genetic optimization

Gupta

Tripathi

2014

2014 6th IEEE Power India International Conference (PIICON)

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The static synchronous compensator (STATCOM) is the multiple input and multiple output system with versatile FACTS device for the enhancement of its dynamic performance in power systems. A novel method based on genetic algorithm is proposed to find the positive definite matrices (Q, R) for LQR based CSC-STATCOM. In this paper, the CSC based STATCOM is controlled by the LQR. But the best constant values for LQR controller's parameters are laboriously obtained through trial and error method, although time consuming. So the objective function of the genetic optimization problem is designed such that to find the optimal values of the LQR controller's parameters in a very short time with the desired criterion for the test system. Applicability of the proposed scheme is demonstrated through simulation in MATLAB and the simulation results show an improvement in the outcomes of CSC-STATCOM.

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Section: Quick Startingmentioning

confidence: 99%

Improved performance of LQR controller in CSC based STATCOM using genetic optimization

Gupta

Tripathi

2014

2014 6th IEEE Power India International Conference (PIICON)

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“…The non-parametric approach applied to the power flow coordination problem is a sampled Multi-variable control law which is based on the principle of a passivity energy system to ensure the closed loop system stability [4]- [7]. The SR controller algorithm which is explained below is particularly formulated for computer implementation.…”

Section: Multi-variable Sampled Regulatormentioning

confidence: 99%

Application of a novel stability control system for coordination of power flow control devices in the future GB transmission system

Kerahroudi

Taylor

et al. 2014

2014 IEEE PES General Meeting | Conference &Amp; Exposition

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Abstract-Following the increase in development of large-scale renewable energy sources in the UK and the pressing need for adequate transmission capacity to accommodate the upcoming renewable generation, more state-of-the-art power flow control devices such as embedded High Voltage DC (HVDC) links will come into operation in the future GB transmission system to provide the additional capacity. However, an operational supervisory stability control system is required to ensure the coordinated control of power flow control devices in order to achieve optimal dynamic performance and make stability limits a less binding factor than thermal limits. The focus of this paper is to demonstrate the capability of the multi variable controller for coordinated control using a non-parametric sampled regulator control design method. This method is very attractive for applications in large power systems since the complexity of the controller design would not increase by size of the power system. Also, in this study, this design method has been demonstrated for two power system applications.Index Terms-Sampled Regulator, Stability Control and HVDC link.

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“…By their inverter configuration, basic type of STATCOM topology can be realized by either a current-source converter (CSC) or a voltage-source converter (VSC) [3][4][5][6][7][8]. But recent research confirms several merits of CSC based STATCOM over VSC based STATCOM [9][10][11]. These advantages contain: $ high converter reliability, $ quick starting, $ inherent short-circuit protection, $ the output current of converter is directly controlled, $ in low switching frequency this reduces the filtering requirements compared with the case of a VSC, $ the dc-side reactor in the current-source converter has a longer lifetime than the dc-side capacitor in the voltage-source converter.…”

Section: Introductionmentioning

confidence: 99%

Optimal LQR controller in CSC based STATCOM using GA and PSO

Gupta¹,

Tripathi²

2014

Archives of Electrical Engineering

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Abstract:The static synchronous compensator (STATCOM) is the multipurpose FACTS device with the multiple input and multiple output system for the enhancement of its dynamic performance in power system. Based on artificial intelligence (AI) optimization technique, a novel controller is proposed for CSC based STATCOM. In this paper, the CSC based STATCOM is controlled by the LQR. But the best constant values for LQR controller's parameters are obtained laboriously through trial and error method, although time consuming. So the goal of this paper is to investigate the ability of AI techniques such as genetic algorithm (GA) and particle swarm optimization (PSO) methods to search the best values of LQR controller's parameters in a very short time with the desired criterion for the test system. Performances of the GA, PSO & ABC based LQR controllers are also compared. Applicability of the proposed scheme is demonstrated through simulation in MATLAB and the simulation results are shown an improvement in the input-output response of CSC-STATCOM.

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Multivariable sampled regulators for the co-ordinated control of STATCOM AC and DC voltage

Cited by 38 publications

References 7 publications

Improved performance of LQR controller in CSC based STATCOM using genetic optimization

Improved performance of LQR controller in CSC based STATCOM using genetic optimization

Application of a novel stability control system for coordination of power flow control devices in the future GB transmission system

Optimal LQR controller in CSC based STATCOM using GA and PSO

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