摘要
国内外常用的电力系统仿真软件对发电机励磁模型定义存在差异。为解决不同仿真工具间的励磁模型不匹配问题,提出一种频域补偿特性等价的励磁模型转换方法,首先求取在基准频率下基于BPA/PSASP定义的中国化励磁模型各个环节的幅频补偿特性,计算励磁模型比例—积分—微分校正模块总体幅频补偿特性并据此反推与之匹配的IEEE标准励磁模型的参数。该方法可在避免大量自定义建模工作和初值平衡计算的前提下获取原有励磁系统的动态特性,实现绝大多数中国化励磁模型的转换。实际电网的时域仿真结果验证了所提方法的有效性。
The definitions of generator excitation models at home and aboard widely used in power system simulation software have some obvious differences.In order to convert the Chinese excitation defined in BPA/PSASP models to the Institute of Electrical and Electronic Engineers（IEEE）standard model,a conversion method of excitation model with invariant compensation characteristic based on frequency domain is proposed.The Chinese excitation model of frequency compensation characteristics is firstly calculated based on the BPA/PSASP definition with basic frequency,and the total amplitude-frequency compensation characteristic of proportion integration differentiation（PID）correction module of excitation model is calculated,based on which the matched parameters of IEEE excitation model are obtained.This method can retain the dynamic characteristics of the original excitation system without a lot of custom modeling work and initial value balancing calculation to realize the transformation of the vast majority of Chinese excitation models.The time domain simulation results of an actual power grid have verified the effectiveness of the proposed method.
出处
《电力系统自动化》
EI
CSCD
北大核心
2016年第24期131-136,共6页
Automation of Electric Power Systems
基金
国家电网公司科技项目"特高压直流连续换相失败
再启动工况下安全稳定控制技术研究"~~
关键词
励磁模型
仿真建模
基准频率
幅频特性
相频特性
excitation model
simulation and modeling
reference frequency
amplitude-frequency characteristic
phase-frequency characteristic
