DSP控制的3kW非隔离型并网逆变器研究  

Study of 3kW non-isolated grid-connected photovoltaic inverter based on DSP control

作　　者：薛家祥[1] 崔龙彬[1] 张红卫[1] 廖天发[1] 张思章[1] 

机构地区：[1]华南理工大学机械与汽车工程学院,广东广州510640

出　　处：《电子技术应用》2012年第2期53-55,59,共4页Application of Electronic Technique

基　　金：广东省科技攻关项目(201B010900003);广州市黄埔区科技支撑项目(1129)

摘　　要：提出了一种基于DSP控制的非隔离型并网逆变器的实现方案。介绍了该并网逆变器结构及原理,给出了基于DSP控制的硬件和软件的总体设计,实现了基于电压扰动观察与控制的最大功率点跟踪(MPPT)和无差拍控制的并网控制策略,并测试了其孤岛保护,完成了3 kW的实验样机及相关实验,对实验波形的分析证明了该控制策略和方案的有效性。This paper presents implementation scheme based on DSP control of the non-isolated grid-connected photovoltaie inverter, introduces the structure and principle of non-isolated grid-connected photovohaie inverter. The design of hardware and software system based on DSP , control strategies of grid-connected based on MPPT and deadbeat control are presented,and island- ing protection is tested.3.0 kW of prototype is completed, experimental waveforms and analysis show the control strategic and schemes are effective.

关 键 词：非隔离型 DSP控制 并网逆变器 MPPT 无差拍控制 

分 类 号：TK51[动力工程及工程热物理—热能工程]