【摘要】 可控串补(TCSC)动态建模是暂态特性分析和控制策略研究的基础。该文用逻辑开关函数法建立了能系统描述TCSC变拓扑电路暂态全过程的解析数学模型,分析了电容电压暂态特征分量的作用及特点,并通过数字仿真研究了不同同步信号下TCSC的暂态响应过程,揭示了电容电压同步下产生超调振荡主要是由w0分量的暂态过程引起的,并提出以电容电压基波分量作同步信号。仿真结果表明,TCSC的容性调节过程快速且无超调。更多还原

【Abstract】 Dynamic modeling for Thyristor Controlled Series Compensation (TCSC) is the base to study the transient characteristic and control strategies. Applying the theory oflogic switch function ,the analytical mathematical model,which can describe the whole transient process of variabletopology for TCSC, is established. The affect and feature of transient characteristic component for capacitive voltage areanalyzed in this paper. The transient response process of TCSC under different synchronous signals is studied by means ofdigital simulations and ARENE tool. It is revealed thattransient process of w0 component is the reason to bring out overshoot and oscillation in capacitive voltage synchronousmode. Using fundamental frequency component of capacitive voltage as synchronous signal is suggested in this paper. It is demonstrated by simulations results that TCSC system shows good transient characteristic. The theory method is universally applied to dynamic modeling for all kinds of variable topology circuit of FACTS technique.更多还原