设计了一种基于双DSC（Digital Signal Control er）控制策略的微型并网光伏逆变器。针对双DSC控制的特点，对电路拓扑结构进行了适当的革新和改进。在DC／DC模块部分使用了隔离变压器，用两个DSC芯片分别控制逆变前后电路，实现了逆变前后电路的完全隔离。详细分析了各模块的工作原理和控制策略，并制作出了相应的硬件电路进行了测试。实验达到了预期的结果，验证了该方案的可行性。%This paper designs a grid-connected photovoltaic micro-inverter based on double DSC control strategy.According to the characteristics of double DSC controlstrategy,this paper make appropriate innovation and improvements on circuit topology.ln the part of DC/DC module isolation transformer is used.The two DSC chips respectively control the circuits before in-verting and after,which realizes completely isolated.Detailed analysis the working principle and control strategy of each mod-ule and make the corresponding hardware circuit which is tested.
展开▼
