基于PSASP的UPFC自定义模型在西南电网的应用仿真

Application Simulation of Unified Power Flow Controller Model in Transmission Lines between Sichuan － Chongqing Province Based on PSASP

摘要:

采用功率注入法和电流注入法，在 PSASP 下实现 UPFC 自定义潮流模型与暂稳模型搭建。给出了川渝断面 UPFC 安装容量与改变潮流分布的关系，计算了川渝断面动态特性。计算结果表明，UPFC 对于改善川渝断面潮流分 布有一定作用，但是安装在功率输送通道上的 UPFC，单位容量改变所安装通道的潮流不到 0． 5 单位，杠杆作用小。通 过串并联侧控制，UPFC 对改善功率、电压振荡效果较明显。

Abstract:

Combined with UPFC equivalent model and power injection method or current injection method，the UPFC power flow model and the transient stability model are introduced by using PSASP custom function． The relationship between UPFC installation capacity and the change of tidal power in lines between Sichuan － Chongqing province is given． The dynamic characteristics of the lines between Sichuan and Chongqing，and the oscillation characteristics of transient energy are calculated． The results show that UPFC has a certain effect on improving the power distribution and suppressing the energy oscillation，but one unit capacity of UPFC can only change less than 0． 5 units power of the lines with UPFC，the leverage effect is pool，so the required UPFC capacity is larger．