摘要
单级式光伏逆变器具有结构简单、效率高、成本低的优点,介绍了一种改进的双环控制方法,使系统输出高质量的并网电流,而且解决了最大功率跟踪过程中的直流母线电压崩溃的问题。实验结果证明了所提方法的有效性。
A single-stage photovohaic inverter has advantages such as simple structure, high efficiency and low cost. An improved double-loop control method is proposed in this paper. It can not only make the system output high quality grid current, but also solve the problem that the DC bus voltage breaks down during the maximum power point tracking. The proposed control strategies are verified by prototype experiments.
出处
《电气开关》
2012年第3期70-72,共3页
Electric Switchgear
关键词
光伏
并网逆变器
单级
最大功率跟踪
photovoltaic
Grid-connected Inverter
single-stage
MPPT
