Abstract
As a major equipment in large pumped storage power stations (PSPS), static frequency converter (SFC) is very important for the fast start of large-sized pumped storage sets and the stable operation of PSPS. This paper presents a multi-degree of freedom dynamic control algorithm for 10MW-Class static frequency converter (SFC) of the large-sized pumped storage power stations (PSPS). This control method can not only overcome the shortcoming caused by constant leading angle control which is generally adopted for SFC, but also improve the inverter's power factor and the SFC' s starting efficiency. Furthermore, a real-time digital simulation platform which approximates real system has been created with real-time digital simulator (RTDS) of power system and main control strategies are studied for SFC. Finally, the results of simulation demonstrate the preciseness and effectiveness of the novel control algorithm. The results indicate that this novel control algorithm may be of significance and availableness for the control design of SFC' s starting for PSPS.
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