TCR+FC型SVC的研究及MATLAB仿真——一种电力节能设备

摘要

Based on instantaneous reactive power theory, the principle of Static Var Compensator ( SVC ) is introduced, and a kind of SVC system which consists of Thyristor Controlled Reactors ( TCR ) and Fixed Capacitor ( FC ) is designed and simulated. In order to maintain the stability of the client node voltage, and to restrict the break of node voltage caused by load disturbance or any other factors, the voltage and admittance double loop control strategy is adopted, and the well-behaved steady-state effects is obtained.Under the environment of MATLAB simulation. The results of the SVC model show the proposed system can stabilize the fluctuation of power grid voltage and raise power facter, and the merits of fast response speed and high precision are verified.%基于瞬时无功功率理论,将具体介绍静态无功补偿装置(SVC)的原理,和一种SVC(三相对称负载的晶闸管控制电感器TCR+容性无功功率补偿装置及滤波器组FC)的设计与仿真.采用闭环控制来实现用户端恒定电压的要求,为有效抑拿电网由于负载扰动等因素引起的电压突变,在电压环内设计了一个导纳补偿环节,用以提高系统应对电压突变的响应速度.通过观看MATLAB的仿真结果,可以得出此型SVC控制系统对稳定和抑制电压波动,提高功率因数,具有响应速度快、精度高的特点.