水电与新能源
水電與新能源
수전여신능원
HYDROPOWER AND NEW ENERGY
2015年
5期
47-50
,共4页
电制动%转子过电压%跨接器%matlab仿真
電製動%轉子過電壓%跨接器%matlab倣真
전제동%전자과전압%과접기%matlab방진
electric brake%rotor overvoltage%crowbar%Matlab simulation
分析了隔河岩电厂发电机在退电制动时转子过电压的原因，提出了在制动变压器之前增加一个接触器以解决转子过电压的方法，结果表明，所用方法是可行的。建议将电厂目前的制动方式（恒流方式）改造成柔性制动方式，以便进一步提高机组运行效率。
分析瞭隔河巖電廠髮電機在退電製動時轉子過電壓的原因，提齣瞭在製動變壓器之前增加一箇接觸器以解決轉子過電壓的方法，結果錶明，所用方法是可行的。建議將電廠目前的製動方式（恆流方式）改造成柔性製動方式，以便進一步提高機組運行效率。
분석료격하암전엄발전궤재퇴전제동시전자과전압적원인，제출료재제동변압기지전증가일개접촉기이해결전자과전압적방법，결과표명，소용방법시가행적。건의장전엄목전적제동방식（항류방식）개조성유성제동방식，이편진일보제고궤조운행효솔。
In Geheyan Hydropower Station, an overvoltage fault of the generator rotor is observed when the electric brake releases.Possible reasons of this fault are analyzed.Then, a crowbar is suggested to add into the system before the bra-king transformer.Practice shows that this treatment is effective.It is also suggested that the constant current braking mode should be replaced by the flexible braking, which could further improve the performance of the generator unit.
