中国电机工程学报2012，Vol.32Issue(9)：7-13,7.
模块化光伏并网系统欧洲效率优化控制方法
European Efficiency Improvement Control for Grid-connected Modular Photovoltaic Generation Systems
摘要
Abstract
A novel control method to improve the European efficiency for modular grid-connected PV generation systems was proposed. The modular inverters in parallel operation share both the DC and AC bus. Two DC bus voltage regulators with different output limits were employed in each inverter module, based on the inherent relationship of DC bus voltage and generation power. And the suitable one of the regulators was enabled naturally by the PV power to run the inverter at the highest efficiency point as the first choice, and at the full load point only if the PV power is high enough. As a result, the European efficiency of the system was optimized at no additional hardware cost. The operational principle of the system was analyzed in detailed with the implementation for the control and design guideline for key parameters given. The analysis is verified with both the state-steady and dynamic experimental results. And the tested European efficiency of the system is improved by 0.43%关键词
模块化变换器/并网逆变器/欧洲效率/CEC效率/光伏Key words
modular converter/grid-connected inverter/European efficiency/CEC efficiency/photovoltaic分类
信息技术与安全科学引用本文复制引用
张犁,胡海兵,冯兰兰,吴田进,郓岩..模块化光伏并网系统欧洲效率优化控制方法[J].中国电机工程学报,2012,32(9):7-13,7.基金项目
国家自然科学基金项N （）
江苏省科技成果转化基金项目fBA2008001）. （）
