模数混合控制光伏并网型逆变电源的设计  

Design of Analogue and Digital Combined Inverter for Grid Connected Photovoltaic Power

作　　者：汪海宁[1] 丁明[1] 苏建徽[1] 杜雪芳[1] 

机构地区：[1]合肥工业大学教育部光伏系统工程研究中心,安徽合肥230009

出　　处：《计算机测量与控制》2005年第2期183-185,共3页Computer Measurement &Control

摘　　要：描述了一种模数混合控制实现的光伏并网逆变器,介绍了在CPU速度受限制的条件下,采用模数混合电路实现运算控制并跟踪并网电流的方案。同时对光伏并网型逆变电源的结构及组成做了详细讨论。根据所提出的方案研制了一台三相并网逆变器,并网电流跟踪具有较高的分辨率,电流谐波小、噪声低,该逆变器已成功应用于20KWp的大型光伏并网示范电站。The structure and constitution of the inverter for grid connected photovoltaic system are presented in details. The mixed analogue-digital control algorithm is developed to track the current to the utility grid under limit of CPU speed. According to the scheme, a three phase grid connected inverter has been developed. The grid connected current has high differentiation and low harmonic components. The inverter has been put into use of 20KWp large-scale grid connected photovoltaic demonstration system, which has proved that the control algorithm works well.

关 键 词：逆变器 光伏并网型逆变电源 设计 模数混合控制 

分 类 号：TM464[电气工程—电器]