Abstract
A calculation method of dynamic reactive power demand to suppress commutation failure of LCC-HVDC during the fault recovery process is proposed. And the analysis of the dynamic and static reactive power compensation configuration strategy of the converter station is performed. The absolute value of the difference between the capacity of the standby static reactive power compensation equipment and the leading-phase capacity of the dynamic reactive power compensation equipment is as small as possible under the constraint of the total dynamic reactive power demand. And the static reactive power equipment cooperating with dynamic reactive power compensation equipment in the steady state condition is beneficial for the voltage recovery. Through the strategy the maximum utilization of reactive power compensation equipment in the station is realized. Finally, the correctness and effectiveness of the strategy are verified by simulation.
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