采用UPS提高自并励励磁系统强励能力的探讨

The Investigation for Using UPS to Improve the Ability of Forced Excitation in the Self-shunt Excitation System

自并励发电机励磁系统在近20多年发展很快,几乎占电力系统发电机励磁系统的90%以上,其主要的不足是在系统故障强励能力较差,国内外都在一直解决这个问题。本论文在发电机及其系统故障时当检测到发电机出口电压低于一定值时自动切换到到励磁整流的备用UPS电源,以提高发电机励磁系统的强励能力。

In recent more than 20 years since the shunt generator excitation system develops very fast, almost accounts for over 90% of the power system generator excitation system, its main deficiency is in worse excitation system fault, both at home and abroad are always solving the problem. This paper refer to the generator and its system fault when they tested the generator outlet voltage drops below a certain value automatically switch to the excitation rectifier spare UPS power supply, in order to improve the ability of forced excitation of generator excitation system.