A novel approach in automatic control based on the genetic algorithm in STATCOM for improvement power system transient stability

G. Shahgholian, S. Eshtehardiha, H. Mahdavi-Nasab, M. Yousefi
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引用次数: 26

Abstract

Static synchronous compensator (STATCOM) is a shunt-connected converter, which can affect rapid control of reactive flow in the transmission line by controlling the generated AC voltage. This article presents a new STATCOM voltage controller design for power system damping. The method of multiplicative uncertainty has been employed to model the variations of the operating points. The controller was tested for a number the step increase in torque reference. Voltage of capacitor STATCOM can be controlled by method of linear quadratic regulator (LQR). In this article, matrixes coefficients and dominant poles of closed loop transfer function are selected based on genetic algorithm method. The results show an improvement in voltage control response in a short response time.
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一种基于遗传算法的STATCOM自动控制新方法,可提高电力系统暂态稳定性
静态同步补偿器(STATCOM)是一种并联变换器,通过控制交流电压的产生,实现对输电线路无功流的快速控制。本文提出了一种新的用于电力系统阻尼的STATCOM电压控制器设计。采用乘法不确定性方法对工作点的变化进行了建模。对该控制器进行了测试,得到了参考转矩阶跃增加数。采用线性二次型稳压器(LQR)控制电容STATCOM的电压。本文采用遗传算法选择闭环传递函数的矩阵、系数和优势极点。结果表明,在较短的响应时间内,电压控制响应得到了改善。
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