基于ARM的新型拓扑结构的逆变电源

An Inverter With New Topology and ARM-Based Control

提出了一种光伏逆变电源的新型拓扑结构,该结构简单,相对于单级式并网逆变器具有升、降压的特性,能够适应较宽的电压范围.介绍了基于ARM实现的数字单周期控制,与传统的模拟单周期控制相比,具有功耗更低、体积更小、精确度更高等优点.最后通过仿真和实验验证了该方案的正确性与有效性.

A new topological structure of photovohaic inverter is proposed. It has a simple structure, and has the ability to step up/down conversion and adapt to wide voltage range compared with the one-stage PV grid-connected inverter. Then, one-cycle control based on ARM is introduced with lower power consumption, smaller size and higher accuracy compared with the traditional one-cycle control. Finally, the control strategy is confirmed to be correct and effective by the results of simulation and experiment.