水轮发电机调速同期综合最优控制的理论及其实践

The Theory and Practice of Optimal Control with Synchronization of Hydro-generator

本文给出了一种基于微机的水轮发电机调速同期综合最优控制系统的设计、工业实验及试运行结果。实现了水轮发电机组全过程的最优控制。该控制系统的应用省掉了电厂中按传统装设的自动准同期装置;减少了机组启动并列过程中的水耗;有利于提高电厂一次设备的寿命;尤其在电力系统事故时,本控制系统可以使事故备用水轮发电机组低周自启动、快速而少冲击地将机组自动并网发电,这对维护电力系统安全、稳定运行具有十分重要的意义,其社会经济效益十分巨大。

This paper presents an optimal control system for comprehensively governing and synchronizing a hydro-generator to the power system. Detailed microcomputer-based design, given field tests and operating results show that the whole process from starting up to shutting down is under optimal control. The application of the system can reduce the water consumption and raise the life-span of the main equipments. system is especially suitable for emergency control. It can automatically start the stand-by hydro-generator in a low freqency when in an emergency state, and rapidly connect the generatoa to the power system with minimum surge current. It is useful for maintaining the stability of power systems, bringing graet social and economical benefits. Such feature makes a possibility for the system to eliminate the conventional synchronizer now widely used in power systems