SVC Emergency Control Study on Continuous Commutation Failure

DC continuous commutation failure always a difficult issue that threaten the safe and stable of power grid. In order to increase the dynamic reactive power of the system, reduce the probability of continuous commutation failure. This paper focuses on the effect of SVC to reduce the failure of DC continuous commutation. Firstly, it theoretically analyzes the working principle of SVC, and the SVC control strategy and parameter setting in detail. Secondly, based on the commutation area method, proposing a continuous commutation failure prediction method. Then the SVC emergency control strategy is developed based on that. Finally, the proposed SVC emergency control strategy is verified in the HVDC CIGRE model. The results show that the method has certain correctness and effectiveness in reducing the risk of DC continuous commutation failure.