Dong Weijie

Research on Frequency-Converter Control Strategy Based on VSM Technology

Frequency converter occupies a large proportion in production and daily life, in order to enable it to effectively take part in the process of system frequency regulation, a control strategy based on the virtual synchronous motor technology (VSM) is proposed in this paper. In the inverter part, VSM control strategy is used, using the mechanical inertia and electrical characteristics of the synchronous motor, the power control and frequency control are researched and designed respectively. The frequency converter are simulated under environment of Simulink/Matlab. Simulation results show that the proposed control strategy can make the frequency converter follow the characteristics of VSM, can change the inverter’s output voltage and frequency with the change of motor load.