Quasi-Z-source inverter based pmsg wind generation system with pitch angle control

摘要

In today's renewable domain as the wind is an intermittent source, but the main encounter in wind system is to sustain a constant voltage at the output since the variation of wind speed is unpredictable. So, a Quasi Z Source inverter for wind power conversion system with MPPT controller, which is appropriately taken care in the steady state through buck-boost capability of quasi z source inverter. The shoot through state of the QZSI is able to control and boost the output voltage at the time when the generation of wind is not more enough to directly generate the desired output and thus, Maximum power point tracking having pitch angle control which will maximize the power and with the help of closed loop controller system it will cautiously monitor the generation of wind and thus, impedance inverter will also control the shoot through and non-shoot states through duty cycles automatically.