单级式单相太阳能光伏并网逆变系统的设计.docxVIP

461 Electrical Automation— 《电气自动化》2010年第32卷第2期 新能源发电控制技术 The New Energy Power Control Technology 单级式单相太阳能光伏并网逆变系统的设计 Design of Single-stage Single-phase Gird-connected Solar Energy PV System 上海理工大学(上海200093) 姚为正 邓祥纯 易映萍 (Universiy of Shanghai for Science and Technology, Shanghai 200093, China) Yao Weizheng Deng Xiangchun Yi Yingping 许继集团(河南许昌461000) 梁 燕 (Xuji Group, Xuchang Henan 461000, China)Liang Yan 摘 要：对于太阳能光伏并网逆变系统，转换效率是至关重要的。目前系统采用得比较多的是多级式变换的拓扑结构，虽然这种结构控制 相对简单，但转换效率由于变换级数的增加而难以提高。而单级式拓扑结构具有电路简单、可靠性高和高效低功耗等诸多优点， 随着现代电力电子技术以及数字信号处理技术的飞速发展，系统拓扑结构引起的控制困难正在逐渐被克服，单级式拓扑结构越 来越多的成为太阳能光伏并网逆变系统设计的首选。该文设计一3KW 的单级式单相太阳能光伏并网逆变系统，在 Mat- IabR2006a/Simulink 仿真环境下进行仿真实验，验证了系统设计的正确性。 关键词：太阳能 并网逆变系统 单级式拓扑结构 设计 Abstract: For grid-connected solar energy photovoltaic inverter system, the conversion efficiency is crucial adjective. At present the multi-stage transformation topology are more used in one system. Although the control of this structure is relatively simple, but the conversion effi- ciency is difficult to improve due to increase in transformation series. While the single-stage topology has a simple circuit, high reliability and high efficiency and low power consumption and many other advantages. With the rapid development of modern power electronic technology and digital signal processing technology, the difficult to control caused by system topology gradually be overcome. More and more grid-connected solar energy photovoltaic inyerter system design choose single-stage topology. This paper designs a 3KW single-stage single-phase grid-inverter solar energy photovoltaic system. Under the MatlabR2006a/Simulink simulation environment to do simulation experiments to verify the correctness