妈湾1号机励磁系统切换问题的解决

为解决深圳妈湾电厂 1号机励磁系统的自动电压调节器与备励不能切换的问题 ,文中对切换过程中所造成的主励转子电压电流和发电机定子电流及无功功率剧烈摆动的问题进行深入探讨和分析 ,通过对励磁主接线实施改造后 ,成功解决了“DC”通道与备励通道不能切换的问题 ,改进效果是显著的 ,从而为实现调节器到备励全自动或半自动切换创造了条件。图 5参 6

How the Exciters Switching of Mawan No. 1 Generater was Solved

With the objective of solving the exciter system's problem of Shenzhen Mawan Power Plant set No.1, of the automatic voltage regulator net being able to switch over to the manual stand by cabinet, the paper first analyzes and discusses profoundly the story oscillation of the main exciters voltage and current as well as of the generators stator's current and that of the reactive power, which all occurred before during a switch over process, the paper then reports how the problem, of the DC channel and the reserve exciter channel, of not being able to switch over, was successfuly solved by some change in the exciter's wiring. The effects of improvement were prominent. Thus paving the way for automatically or quasi automatically switching over the regulator to the manual stand by cabinet. Figs 5 and refs 6