摘 要
随着能源消费的增长、生态环境的日益恶化和人类环保意识的提高，世界各国都在积极寻一种可持续发展目无污染的新能源。风能作为一种高效无污染的新能源，一种未来世纪常规能源的替代品，尤其受到人类的重视。从日前来看，风能并网发电技术是最有发展前途的，成为了可再生能源应用的主流。
本文主要论述风力发电中的逆变电源部分即全功率风力发电逆变电源。在本课题的系统中采用同步发电机发电，采用逆变电源作为发电机与电网之间的电力电子接口。本文的主要工作就是论述逆变器的设计。其中介绍了风力发电的背景知识和逆变电源设计的相关理论知识，着重分析了有源逆变的两种电路形式—晶闸管三相桥整流电路的有源逆变工作状态与PWM调制逆变电路，最后介绍了逆变电源中的一些辅助电路的设计和选择。
由于风力发电中风能的不可控性，其发出的电能质量必定要受到很大的限制，但是如果要把发出的电送到电网则必须要符合电网的电压、频率和功率因数等标准，所以逆变器的设计必须要能满足这些要求。所以本文中要在对两种逆变电路的分析的基础上选择了一种较好且较为通用的方案—PWM调制逆变电路来设计本逆变电源。除此之外还介绍了驱动控制电路和控制算法，以及采样调理，滤波保护电路等。
关键词：风力发电，电力电子，逆变电源，PWM波，驱动电路
The Design of Full Power Inverter in Wind Power Supply
ABSTRACT
With the increasement of the energy consuming, worsening of ecosystem environment and the exaltation of the human environmental protection consciousness,many countries around the world are looking for a kind of developing and new energies without pollution positively.The wind energy is used as a kind of efficient new energy whithout pollution,a kind of substitute of the normal regulations energy of this century.Currently, wind energy grid connected generates electricity the technique among them have become the most prospected, turn to the main form of the renewable energy application.
The paper mainly discuss the full power inverter in wind power supply. .In the system introduced in the paper,the power is send out by the synchronous generator and it adopt the full power inverter as the interface between wind generator and power grid.The topic of the paper is the design of the inverter.It introduced the background knowledge of the wind power,as well as the related theories of power inverter d
esign.The article focuses on the analysis of the two kinds of circuit forms in the inverter—the Regenerative Invert of the Three-Phase Full-Bridge Controlled Rectifier and PWM Invert. And finally it introduces the design of the circuit in the in the full power inverter.
风力发电的原理As in the system of wind power the wind is non-controllability,the power quality will be restricted greatly.In order to combine the electricity to the power grid,we would have to meet the requested standards of the grid voltage, frequency, power factor and so on.The design of inverter must meet these requirements. So in this article,based on the analysis of the two circuits,I chose the PWM Invert.In addition,the drive control circuit, sample conditioning circuit and protection circuit are aiso introduced in the paper.
KEY WORDS: wind power generation, power electronics, power inverter, PWM wave， drive circuit
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