崩溃点法交直流联合系统电压稳定性分析

Point of Collapse Method Applied to Voltage Stability Analysis of AC/DC Power System

本文在分解计算直流系统方程和交流系统方程，简捷地计及交直流网络间耦合关系的基础上，将崩溃点方法应用于交直流联合电力系统的电压稳定性分析，文中提出的赋初值的方法能确保迭代快速收敛到所需崩溃点。本文方法计算简单、计算量小、且能方便地考虑直流系统变量的约束及运行方式的合理调整，可用于采用任何运行方式的交直流联合系统的电压稳定性分析。

Based on solving decomposedly equations of DC system and equations of AC system and considerating simply and directly the coupling relationship between the DC system and AC system. Point of collapse method is applied to voltage stability analysis of AC/DC power system,inital guess proposed can guarantee iteration to converge very fastly to the point of collapse needed,The proposed method is characterized by its simplicity of calculation,little amount of calculation and conenience of considerating restrain of DC system variable and adjusting rationally operation mode,it can be applied to analyse the voltage stability of AC/DC power systems of any operation mode.