Analysis of Reactive Power Capability for Salient Synchronous Generators, and its Application to Primary Restorative Systems

돌극형 동기 발전기의 무효전력 공급 한계 해석 및 우선공급계통에의 적용

  • 이흥재 (광운대 공대 전기공학과) ;
  • 박성민 (광운대 공대 대학원 전기공학과)
  • Published : 2007.01.01

Abstract

Power system restoration following a massive blackout starts with re-energizing primary restorative transmission systems at first. The comparison of the TLCC(transmission line charging capacity) and the RPC(reactive power capability) of related black-start generator should be considered in this stage because overvoltage can be caused by self-excitation at the generator when the RPC is smaller than the TLCC. The RPC can be decided by two criteria. One is stator end core heating, and the other is steady state stability. RPC in steady state stability area has been found based on a synchronous reactance Xd. This paper presents RPC limit of salient pole machine which is different from that of non-salient pole machine in steady state stability area and shows derivation process about that.

References

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