基于新型数字锁相技术的光伏并网逆变器

摘要

介绍了一种基于新型数字锁相技术的单相光伏并网逆变器的研究设计.针对并网电流和电网电压的相位偏差做主动相位调整功能的问题提出了一种基于两者相位偏差的进行主动相位调整的新型数字锁相环技术,给出了基于DSPTMS320F2407的软件设计,并在实验平台上进行了实验.结果表明,并网电流波形良好,实时性和动态响应较好,所设计的新型数字锁相环技术是可行的.%The current digital phase lock technique for phase discrepancy do not have the active phase adjustment function. In this paper the problem is proposed based on both the phase offset the active phase adjustment new digital phase locked loop technique. The software is designd based on the TMS320F2407, and experiment is conducted. The experimental results show that grid current waveform is good, the real-time and dynamic response are better, and the design of the new digital phase locked loop technique is feasible.