李家峡水电站1#发电机组励磁系统模型参数试验及分析

李家峡水电站在西北电网中担任调峰、调频任务,为系统主力电厂。通过对电站发电机励磁参数进行调查和测试,为系统稳定分析及电网日常生产调度提供准确的计算数据,是保证电网安全运行和提高劳动生产率的有效措施,具有重要的社会意义和经济效益。文章对李家峡水电厂1#机组励磁系统的参数进行了测试及计算,并提供了电力系统稳定计算数学模型和参数,对电力系统稳定器(PSS)的参数选择和试验结果,进行了分析确定了PSS的运行参数。

Model Parameter Test and Analysis of 1# generating units Excitation System of Lijiaxia Hydropower Station

As one of important part of North-west electric power system,Lijiaxia hydropower station undertakes the task of peak and frequency modulation.It is an effective measure to ensure safe operation of power grid and improve labor productivity through prosecuting research and test on generating units' excitation parameters of power station,in order to provide accurate calculating data for system stability analysis and the daily production dispatching,and this possesses crucial technical and economic significance.The paper detailed introduces test and calculating result of 1# generating units' excitation system of Lijiaxia hydropower station,and expounds mathematical model and parameter which applied to power system stability calculation;as well as makes an analysis on parameter select and test result of power system stabilizer(pss),thus confirms operating parameters of PSS.