Design and Simulation for Three-Level Static Synchronous Compensator

It adopts three-level inverter as the main circuit of Static Synchronous Compensator (STATCOM), making the output waveform of main circuit more close to sine waveform and the contents of harmonic reduced a lot. Space voltage vector modulate technology (SVPWM) is widely used for control algorithm of three-level main circuit because its digital realize easily, and few current harmonic wave components etc. Design single-phase drive circuit with level clamp using IR2110. Theory analysis and simulation experiment results indicate that the designed STATCOM system of three-level main circuit can send out inductive or capacitive reactive power smoothly, has good dynamic compensation characteristic, it can meet the needs of reactive power compensation.