| Summary: | In order to optimize electromagnetic structure of new type high-capacity synchronous condenser, increase reactive capacity, and improve the speed of dynamic response, the theoretical derivation of the effects on the main performance parameters of the synchronous condenser is carried out, also the influence of the structure size of the synchronous condenser on the transient characteristics is clarified. Changing the air gap length and improving the size of stator structure are proposed to optimize the performance of synchronous condenser. The electromagnetic calculation of the optimized synchronous condenser is carried out by using finite element analysis method, the mathematical relationship between length of air gap and reactive capacity is clarified and the relationship between size of stator slot and fast response characteristics is explicited too. The temperature field of the synchronous condenser under multiple working conditions is simulated. The simulation results show that the temperature distribution of the optimized synchronous condenser is reasonable, and it possess good effect of cooling. Also the overload capacity of the synchronous condenser is verified with the temperature field.
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