Abstract: The power electronic technology application in electric power transformation realm is the hot point in power supply research. This paper discusses the history and status of all kinds of wind power electric power transformation technology comprehensively and systematically, especially inverter technology. Firstly, the principles, structure and the hardware design of the lead-acid battery are introduced. On the basis of charging and discharging property of the maintenance-free lead-acid battery, I design charge equipment. Secondly, the article mainly analysis work principle and system design of the inverter circuit form several aspect. Make use of Integrated Circuit gets the SPWM wave to control the full bridge inversion, not only has lowered costs, but also performance can meet users' request partly, I use electric voltage feedback to steady the electric voltage and electric current feedback to limit the high electric current, finally get good sinusoidal wave. And to various kinds of supplementary circuit alike DC chopping circuit, power supply, pass and discharge and control and instruct circuit and pass and flow and keep and protect circuit acted as sure introduction.
Keyword: Wind power electric transformation; charge the lead-Acid Battery ;Inverter; PWM.