摘要
热电厂利用余压余热发电需要增加异步发电机接入厂用高压母线,由于异步发电机的容量较大,接入高压厂用母线后在并网和运行过程中对厂用电系统安全运行可能会产生影响。为了确保新增加异步电机不影响厂用电系统安全稳定运行,结合异步发电机的不同运行方式,对高压厂用变压器分支保护和高压段系统产生的影响进行计算分析,在异步发电机选型前进行动稳态、热稳态校验,以选择最合适的异步发电机容量。
The thermal power plant using residual pressure waste heat power generation increased by high voltage asynchronous generator factory access bus,because of the large capacity of asynchronous motor.Access to high pressure auxiliary buses in the grid and the operation process of power plant should affect the safe operation of the system.In order to ensure that the new induction motor does not affect the safe and stable operation of the power system of the factory,combined with the operation mode of asynchronous motor,analyzes the influence of high plant transformer short circuit protection and high voltage branch system after the calculation.
作者
张立
牟法海
刘强
Zhang Li;Mu Fahai;Liu Qiang(hebei Jiyan energy Science and Technology Research institute Co.,Ltd,Shijiazhuang 050051,China)
出处
《河北电力技术》
2018年第3期8-10,22,共4页
Hebei Electric Power
关键词
异步发电机
电气系统
电机运行方式
参数校验
asynchronous motor connection
electrical system
motor operation mode
parameter
