With the popular application of the new synchronous condenser,the security problem of the condenser has become increasingly prominent.The inter-turn short circuit fault of wingding is a typical serious fault of the condenser,which has a serious impact on the long-term operation of the condenser and the stability of the power grid.Based on the air gap magnetic field magnetomotive force,the unified mathematical representations of total rotor current,stator winding phase current,branch current and electromagnetic torque are established.The two kinds of faults are compared deeply from the amplitude,phase,harmonic content and other aspects,and the fault mechanism of inter-turn short circuit in the new synchronous condenser winding is revealed.Based on the TTS-300-2 synchronous condenser which has been put into use on a large scale,a simulation code is established for the actual condenser while an experiment platform is developed for a condenser simulator.The effectiveness of the theoretical analysis is verified by both the simulation and experimental results.
关键词
同步调相机/匝间短路故障/磁动势/机理分析/有限元
Key words
synchronous condenser/inter-turn short circuit fault/magnetomotive force/mechanism analysis/finite element
维普
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