光伏并网逆变器DSP核心控制电路设计

The core module design and research of solar energy Grid-connected inverter

分析了逆变器的工作原理和算法,并对逆变器的核心模块和关键技术进行了研究。系统采用了TMS320F28335作为核心的处理芯片,设计了一个可行的数字控制系统,实现了对各路电流的传感控制和各个功率开关驱动信号的产生,并分析了最大功率点的跟踪算法和系统安全保护策略。通过仿真实验结果表明,该系统能顺利完成逆变器核心功能的实现,证明了该方案的可行性和实用性。

The working principle and algorithm of inverter,and the core module and core technology of inverter are proposed.The system uses TMS320F28335 as the core control chip,and a feasible digital control system is finished.According to this,it not only achieves all the power module signal,and successfully control every channel of sensing current,but also gives an theoretical analysis of the MPPT algorithm.Experiments results show the system can successfully obtain the core function of inverter,and it verifies the feasibility and practicality of the design.