控制系统电源设计可靠性分析及改进

近年来随着集散控制系统（distributed control system；DCS）在电力生产过程中的普遍运用，发电过程自动化水平虽有所提升．但部分机组运行的安全、稳定性并未明显提高。由于电源系统自身原因而导致的控制系统失灵，影响机组的稳定运行也时有发生。该文介绍了江西省火力发电厂热工电源的设计现状，分析了其设计原理、存在不足，并提出了改进措施。

Improvement and Analysis of Power Supply Design Reliability for Control System

In recent years,along with the distributed control system in the electric power production line of widespread application,the automation level of generation process although have to promote,the safety,stability for circulating of part of machines didn't obviously increase.Because of the control system that power supply system itself reason and cause out of order,influence the stability of the machine set.This text introduced the JiangXi thermal power plant the design present condition of the thermal control system power supply,and analyze the principle of its design,exit lack,and propose the improvement measure.