摘要
本文对抽水蓄能电动发电视起动过程进行了数字仿真，针对抽水蓄能机组起动特性和电气运行特点，提出了一种自适应频率跟踪算法，使在各种运行工况下抽水蓄能发—变组微机保护对电压和电流的采集，不受频率偏离工频的影响，并给出了频率跟踪算法仿真计算结果。该方法对其它发电机微机保护和控制设备同样有效。
This paper simulates the starting process of apumped-storage generator/motor by numerical method, pre-sents a fequency-tracking algorithm according to the startingand operating characteristics of pumped storage units. Withthis a1gorithm the acquisition of voltage and current phasorsfor generator-trans fomer unit digital relaying is not affectedby the frequfncy deviation. Performance of this frequencytracking algorthm is evaluated by digital simuIation- Thismethod can be used in other generator relaying and control equipment.
出处
《电网技术》
EI
CSCD
北大核心
1997年第7期39-43,共5页
Power System Technology
关键词
水轮发电机
抽水蓄能电站
微机保护
Pumped storage units Digital simulation Digital protection Adaptive sampling
