Maximum Boost Control of Quasi-Z-Source Inverter with DSTATCOM for a Wind Energy System

Maximum boost control method of a single-phase enhanced quasi-Z-source inverter with distribution static synchronous compensator (DSTATCOM) for a 0.5 kW wind energy system is presented in this paper. Generation of electrical energy from wind being renewable source is very effective as far as efficiency, reliability, and cost are considered. A DSTATCOM is used to improve power quality of the system. A 0.5 kW permanent magnet synchronous generator (PMSG) employed wind energy system is used as a source. The enhanced quasi-Z-source converter has common ground with the inverter and source with which it draws continuous current, eliminates starting inrush current problem (which is one of the major concerns), and also reduces the stress of voltage at the capacitors. The voltage of the system has been increased with the help of quasi-Z-source inverter. The implemented method of maximum boost control provides maximum gain in voltage for a given M (modulation index), and it does not produce ripple of lower frequency.