摘要
在一种混合控制的光伏并网级联逆变器的基础上，提出了一种在梯形波叠加方式下单元逆变器导通角的简易算法，计算不同位置时单元逆变器的输出功率，提出采取逆变器轮流工作方式解决电池模块输出功率不平衡问题，并对各级联单元光伏电池如何配置进行了分析和计算，通过仿真证明其正确性。
On the basis of a hybrid-controlled photovoltaic grid-connected cascaded inverter, we present a simple method to calculate the conduction angle of the unit inverter through trapezoidal wave superposition. We analyze the output power when the unit inverter is at different positions and propose to make the inverter work alternatively to resolve the battery output power imbalance. Also we discuss how to optimize the configuration for each level unit photovoltaic battery and the simulation results show that our method is effective and correct.
出处
《UPS应用》
2009年第6期30-34,共5页
UPS Applications
关键词
级联
阶梯波控制
光伏并网
Cascade
Trapezoidal Wave Control
Photovoltaic Grid-connected
