基于SSSC的改进型相间功率控制器  

Improved interphase power controller based on SSSC

作　　者：李娟[1] 宋彬彬[1] 赵延青[2] 薄明明[1] 赵迎春[1] 张新宇[3] 

机构地区：[1]东北电力大学电气工程学院,吉林吉林132012 [2]国电南京自动化股份有限公司,江苏南京210032 [3]中国船舶重工集团公司第七〇三研究所,黑龙江哈尔滨150078

出　　处：《电力系统保护与控制》2013年第15期68-75,共8页Power System Protection and Control

摘　　要：在研究了相间功率控制器(IPC)和静止同步串联补偿器(SSSC)的基本原理、工作特性的基础上,提出了一种以SSSC代替常规IPC中的移相器(PST)实现电感、电容支路的移相功能的改进型IPC。采用较典型的PI控制,通过改变参考电压值对SSSC中的电压源型变换器(VSC)进行控制,来改变线路的注入电压,达到快速连续改变IPC各支路的移相角的目的,从而灵活地控制联络线的有功功率、无功功率。与常规IPC相比能够在IPC两侧电压相位差较大时,较好地改善IPC的过电压问题。采用Matlab/Smulink仿真,验证了改进型IPC可以实现联络线潮流控制和改善过电压。In the study of the basic principle and work characteristics of interphase power controller （IPC） and static synchronous series compensator （SSSC）, a new IPC based SSSC is proposed, in which SSSC is used to replace the phase shifting transformer of the traditional IPC to realize the phase shifting function of inductance branch and capacitance branch. The typical PI control is used to control the voltage source converter by changing the reference voltage and achieve the purpose of changing injected voltage, to change the phase shifting of IPC fast and continuously, thereby controlling the power flow of tie-line flexibly. Compared with conventional IPC, the improved IPC can improve the overvoltage problem, when the relative phase slippage between the power systems on both sides of the tie-line happens. The simulation of Matlab/Simulink verifies the improved IPC can make the power flow of tie-line under control completely and improve the overvoltage problem.

关 键 词：静止同步串联补偿器 移相器 潮流控制 改进型相间功率控制器 相位滑移 过电压 

分 类 号：TM761.1[电气工程—电力系统及自动化]