Laboratory studies of the operation of a single-phase solid-state transformer when operating from a wind turbine

Abstract

The article describes a laboratory equipment for studying the operation of a single-phase solid-state transformer when operating from a wind turbine. Oscillograms of currents and oscillograms of voltages are given during the operation of a solid-state transformer from a voltage source. To simulate a wind turbine, the "actuating mechanism - generator" assembly was used. Wind gusts were simulated using a frequency converter. The key elements of the solid-state transformer - a dual active bridge - were controlled by the phase shift method. Critical points were found that could not be foreseen in a theoretical or simulation study. The experiment showed the perspective of using new technologies to maintain a stable output voltage frequency and voltage level.