基于FPGA的光伏并网逆变器控制系统的研究  

Research on Photovoltaic Grid-connected Inverter Control Syatem Based on FPGA

作　　者：赵耀[1] 赵庚申[1] 陈曦[1] 殷杰[1] 赵星宇[1] 程如岐[1] 郭天勇[1] 

机构地区：[1]南开大学光电子薄膜器件与技术研究所光电子薄膜器件与技术天津市重点实验室,天津300071

出　　处：《南开大学学报（自然科学版）》2013年第2期49-54,共6页Acta Scientiarum Naturalium Universitatis Nankaiensis

基　　金：天津市基础重点基金(11JCZDJC22900)

摘　　要：提出一种利用FPGA实现的光伏并网逆变器控制系统.在分析Boost型DC/DC转换器和电压源型逆变器组成的光伏并网逆变器硬件结构的基础上,对最大功率跟踪、SVPWM调制、并网控制等关键控制环节进行了研究,通过在FPGA内搭建AD采样控制、数据处理、最大功率算法、SVPWM发生、PI控制器、数字锁相环等模块实现该控制系统.搭建应用该控制系统的3kW光伏并网逆变器样机,在分布式发电实验平台运行,结果验证了该FPGA控制系统的可靠性,证明了其并行运算能力有助于提高控制效率和光伏并网系统的输出电能质量.A PV grid-connected inverter control system based on FPGA is proposed. On the basis of analysis of boost DC/DC converter and voltage source inverter, the key control contents as MPPT, SVPWM modulation and grid control is studied. The control system is achieved through build modules in FPGA as AD sampling, data processing, maximum power algorithm, SVPWM generation, PI controller and digital phase locked loop. Built a 3 kW PV grid-connected inverter using this control system, running on the distributed power generation experimental platform, the results verify the reliability of the FPGA control system and its par- allel computing capabilities can improve the control efficiency and output power quality of pho- tovoltaic grid-connected system.

关 键 词：FPGA 光伏 MPPT SVPWM 并网 

分 类 号：TM615[电气工程—电力系统及自动化]