机构地区: 上海大学机电工程与自动化学院
出 处: 《电气传动自动化》 2005年第6期34-38,共5页
摘 要: 介绍了一种用于太阳能并网逆变的LCL导抗变换器系统,提出了所需SPWM的具体调制方法。使用基频分量近似的方法将系统各变量转化为等效输入电流的函数,为采用经典交流分析法详细分析一个载波周期内各工作模式的边界条件提供便利。将实验数据与仿真结果进行了比较,证实了理论分析的正确和控制策略的可行性。 One type of solar grid-connection system by using LCL immittance converter, also with it's detail SPWM modulation method are presented. After using the foundation frequency element approximate method, which makes all system variable be the equation of equivalent input current. Then the limitation of each pattern in one carrier period can be drawn which is essential to the classical AC analysis. By compared the experiment result with simulation data, the correctness of theory analysis and feasibility of control strategy has been proven.
领 域: [电气工程]