摘要
针对电力系统中、长期电压稳定分析等需确定各发电机组出力的潮流计算问题,根据稳态运行时,发电机组的输出功率由机组的有功-频率静态特性和无功-电压静态特性所确定,该文列出计及控制环节的求解方程,提出不需设置平衡节点的给定有功-频率特性的空载频率f_0、无功-电压特性的空载电压V_(G0)(f_0V_(G0))的潮流算法。在非限制情况下,该算法满足任一机组的调节,影响了全系统各机组的输出;系统中的任一扰动,全系统参与一次自动调节的机组均有响应的实际情况。5节点系统和IEEE30节点系统算例说明,该算法可用于分析控制目标和控制参数对电力系统潮流的影响。
Long-term voltage stability analysis problem focuses on the dynamic response equilibrium points of post-fault power flows. On the basis of the principle that the output power of synchronous generator units is determined by the active power-frequency and reactive power-voltage steady-state characteristics in power system steady-state analysis, in order to determine the output of synchronous generator units for post-fault power flows, this paper discusses the power flow equations including the unit control loop circuits, and proposes a power flow algorithm which swing bus is not necessary and set points are open-circuit frequency f0 and open-circuit voltage VG0, (f0VG0). This algorithm is satisfied with the fact that if any unit is regulated in a system, the output power of the rest units are affected, and if any disturbance has arisen in a system, all units participating in primary regulation respond accordingly. The calculation results of 5 bus and IEEE 30 bus systems show that the algorithm can be used to analyze the control objectives and control parameters how to influence of post-fault power flow.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2003年第12期74-78,共5页
Proceedings of the CSEE
关键词
电力系统
稳态控制
潮流
空载频率
空载电压算法
Power system
Primary regulation
Secondary regulation
Control objective
Power flow algorithm
Control parameters
