Research of three-phase inverter based on SPWM

Wind energy resource is green energy of non-polluting and makes a least impact on the environment among kinds of energy. Therefore, in order to promote economic and social development and ease the conventional energy resources limited and the problem of environmental pollution, wind energy and other renewable resources have be paid attention to in various countries. In this paper the structure of the PWM inverter are analyzed and overall design scheme of three-phase inverter is designed, then the stability of the inverter controller closed-loop control system is described. The paper also presents the parameters of the experimental system design and implementation of software flowchart of thought of the control. In addition laboratory systems are made and the experiment is carried out. The results of the experiment have verified the correctness of the analysis and design.