【摘要】 研究了反激型电流源光伏并网逆变器损耗的计算方法,推导出用于损耗分析计算的公式。分析表明:反激型电流源并网逆变器的损耗与其变压器匝比关系密切,匝比直接影响开关器件的选择与变压器的设计,最终影响变换器效率。在对其损耗分析模型进行验证的基础上,应用该模型进行了一个160W光伏并网逆变模块的优化设计,实验证明该方法能够为反激型并网逆变器的设计提供一套有效的设计方法,达到优化系统参数的目的。更多还原

【Abstract】 The calculation method of flyback-type current source inverter for grid-connected PV systems was studied.The formula for losses calculating was derived.It shows the losses of flyback-type inverter has the close relationship with transformer turns-ratio.Different turns ratio impacts the choice of switch devices,design of transformer,and the converter efficiency ultimately.Based on the analysis of losses model,an optimal design of a 160W grid-connected PV module was achieved.The experiment results validate that the method can provide an effective design method for flyback-type current source inverter,and optimize the system parameters.更多还原