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After the high proportion of new energy is connected, the decrease of the proportion of synchronous machine in power system will cause a series of stability hazards, such as the lack of inertia. The distributed asynchronous condenser provides a solution for the above problems because of its high controllability, high inertia and high phase advance ability. In this paper, the performance parameters of the distributed asynchronous condenser are analyzed to further optimize its structure. At the same time, the advantages and disadvantages of different excitation schemes are compared and analyzed, and the best scheme is selected; Secondly, a multi physical domain model is established to analyze the magnetic field distribution in steady-state operation and verify the error between the design value and the simulation value; Finally, the transient characteristics of distributed asynchronous condenser under different fault types and different fault parameters are analyzed. Through the above research, this paper verifies that the distributed asynchronous condenser plays the role of reactive power support and voltage regulation on the stability of new energy system.

Optimization and Transient Analysis of Distributed Asynchronous Condenser