中国电机工程学报2013，Vol.33Issue(10)：50-56,前插7,8.
非解析复变电力系统电压稳定的动态分析方法
Comprehensive Dynamic Analysis Method for Power System Static Voltage Stability
刘光晔 1施海亮 1杨以涵2
作者信息
- 1. 湖南大学电气与信息工程学院,湖南省长沙市410082
- 2. 华北电力大学电气与电子工程学院,北京市昌平区102206
- 折叠
摘要
Abstract
As power system is a non-analytical complex variable system, node voltages are not analytical complex-variable function of load current. In the plural domain, node voltages are not directly derivative of the load current, so there are still no papers using dynamic analytic method to study power system voltage stability. In this paper, the dynamic analytic method of non-analytical complex was derived; the comprehensive dynamic equivalent impedance of power system was defined; and the necessary condition when power system achieves limit transmission is that the comprehensive dynamic equivalence impedance mode is equal to load static equivalent impedance mode. By simulation and calculations, it proved that the necessary condition was right; load impedance modulus margin can accurately describe the system load node voltage stability level. Dynamic analytic method set a theoretical foundation to establish power system nonlinear equivalent model, and to apply nonlinear equivalent model to calculate limit power quickly and accurately. The maximum transmission power judgment criterion can be used to judge whether it is feasible to the solution of power flow equation for large-scale power system.关键词
电力系统/电压稳定/综合等值/动态分析/动态阻抗Key words
power system/ comprehensive equivalent/ voltage stability/ dynamic analysis/ dynamic impedance分类
信息技术与安全科学引用本文复制引用
刘光晔,施海亮,杨以涵..非解析复变电力系统电压稳定的动态分析方法[J].中国电机工程学报,2013,33(10):50-56,前插7,8.
