A Method of Measuring Synchronous Reactance of Synchronous Generator
Synchronous reactance is an important parameter to characterize the synchronous motor,which is the main basis for analyzing the operating performance of the synchronous motor,and the synchronous reactance is mainly measured by experimental methods.The current experimental measurement method is inconvenient to operate and control,and has many shortcomings such as large errors caused by human factors,therefore,this paper gives a practical method of unsaturated synchronous reactance measure-ment based on the operating characteristics of different loads of synchronous generator,the equivalent circuit of synchronous genera-tor and the space phase vector diagrams.The straight-axis synchronous reactance of the convex-pole synchronous generator is calcu-lated by stringing three symmetrical capacitive loads in the stator circuit,and the cross-axis synchronous reactance is calculated by stringing three symmetrical resistive loads in the stator circuit,and finally,the conclusions obtained by this method are extended to the calculation of synchronous reactance of the hidden-pole synchronous generator,which have the same results,thus verifying the correctness of this method and providing theoretical bases for the users to apply synchronous generator correctly and efficiently.It provides the theoretical basis for users to apply synchronous motor correctly and effectively.
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