Simplified active power and reactive power control with MPPT for three-phase grid-connected photovoltaic inverters
Simplified active power and reactive power control with MPPT for three-phase grid-connected photovoltaic inverters
复制标题
通过 MPPT 简化三相并网光伏逆变器的有功功率和无功功率控制
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
S. Po
中科院分区：
文献类型：
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作者：
T. Suyata;S. Po
针对三相光伏并网逆变器，提出了一种简化的最大功率点跟踪（MPPT）有功功率和无功功率控制方法。该控制策略将扰动观测法应用于简单MPPT算法，并通过反馈和前馈控制器调节旋转坐标系上的电流指令。为了保证所有的最大功率都传输到电网，d轴电流或有功功率命令是从PV功率计算的。此外，锁相环（PLL）和电流控制器的设计准则也被提出。通过仿真验证了所提出的并网逆变器的有效性。
This paper presents the simplified active power and reactive power control with the maximum power point tracking (MPPT) for three-phase grid-connected photovoltaic (PV) inverters. With the proposed control strategy, the perturbation and observation method is used for the simple MPPT algorithm and the current command on the rotating reference frame is regulated by the feedback and feedforward controller. In order to guarantee the all maximum power is transferred to the grid, the d-axis current or active power command is calculated from the PV power. Moreover, the design guidelines of phase-locked loop (PLL) and current controller are also presented. Validity of the proposed grid-connected inverters is confirmed by simulation.