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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。
In this paper, the digital simulation of starting process of pumped storage motor was carried out. According to the characteristics of starting and electrical operation of pumped storage unit, an adaptive frequency tracking algorithm was proposed to make the pumped storage- Variables microcomputer protection of voltage and current collection, free from the frequency deviation from the impact of frequency, and gives the frequency tracking algorithm simulation results. This method is equally effective for other generator microcomputer protection and control equipment.