介绍了同步发电机微机励磁控制系统基本运行参量的实时测量技术，包括发电机机端电压测量、系统电压测量、有功功率和无功功率测量、励磁电流和励磁电压测量以及发电机频率测量等。所介绍的各种测量技术均经实践考验，特别适用于大、中型同步发电机微机励磁调节器。 This paper introduces the real-time measurement technology of the basic operating parameters of synchronous generator excitation control system, including generator terminal voltage measurement, system voltage measurement, active power and reactive power measurement, excitation current and excitation voltage measurement and generator frequency measurement. The introduction of various measurement techniques have been tested by practice, especially for large and medium-sized synchronous generators microcomputer excitation regulator.