摘要
在以电容电压为同步信号的可控串联补偿装置(TCSC)中,由于存在电容器、电抗器等储能元件,因此在通过改变晶闸管触发角调整TCSC的运行工况时,电容电压过零点不能由原稳定运行状态立即达到新的稳定运行状态,这势必会影响TCSC的阻抗调节特性。文中给出了这种TCSC装置在计及电抗器电阻时的电容电压表达式,研究了TCSC运行在感性区、晶闸管触发角跃变时电容电压过零点的变化规律,并对TCSC在暂态、稳态过程中的电容电压过零点的振荡特性进行了深入分析。
In thyristor controlled series compensation (TCSC) the capacitor voltage was taken as the synchronous signal. Because there were energy-storage elements such as capacitors and reactors in TCSC, when the operating condition was adjusted by varying the thyristor's trigger angle, the zero-cross point of capacitor voltage could not achieve its new stable operating state from its original stable operating state immediately, so it would certainly affect TCSC's impedance regulation characteristics. This paper gave the expression of capacitor voltage while the TCSC's reactor resistance was taken into account, researched the variety law of the zero-cross point for capacitor voltage when TCSC operated in inductive region and the thyristor's trigger angle jumped. The oscillation characteristics of zero-cross point of capacitor voltage in transient and steady process were thoroughly analyzed.
出处
《电网技术》
EI
CSCD
北大核心
2004年第20期33-37,共5页
Power System Technology
基金
中华电力教育基金许继奖教金资助项目
