基于MATLAB的励磁换相过电压及其抑制方法的仿真研究
Study on Excitation Commutation Overvoltage and Suppression Method based on MATLAB
周攀 1罗腾 1陈环 1崔玉刚1
作者信息
- 1. 中国长江电力股份有限公司溪洛渡水力发电厂,云南昭通 657300
- 折叠
摘要
阻容保护装置是抑制发电机励磁系统换相过电压的主要手段,由于不同的阻容保护拓扑结构和参数配置对阳极过电压的抑制效果有不同程度的影响,因此对阻容保护装置的选型与其参数配置成为工程现场应用时不可避免的问题.本文介绍了一种在MATLAB平台下针对励磁系统的建模仿真分析方法,搭建出可反映整流桥换相时阳极出现过电压的励磁系统模型.以该模型为基础,对整流式、集中式阻容保护拓扑结构在配置不同阻容参数下对换相过电压的抑制特性和效果进行仿真分析,为工程现场选型与参数配置提供了仿真参考方法.
Abstract
The RC protection equipment is the main means to suppress the phase conversion overvoltage occurring in the generator excitation system.Different RC protection topologies and parameter configurations have varying degrees of influence on suppressing the overvoltage,and the selection of the RC protection equipment and its parameter configuration become an unavoidable problem in engineering field application.A method for modeling and simulation analysis for the excitation system under the MATLAB platform is introduced in this paper,and an excitation system model that can reflect the anode overvoltage during commutation of the rectifier bridge is constructed.Based on this model,the phase conversion overvoltage suppression effect of different RC protection topologies with multiple sets of RC parameters is simulated and analyzed,which provides a reference method for engineering site selection and parameter configuration.
关键词
换相过电压/阻容装置/励磁系统/拓扑结构Key words
commutation overvoltage/RC equipment/excitation system/topological structure引用本文复制引用
出版年
2024
NETL
NSTL
万方数据