独立光伏发电系统的能量优化管理

Energy optimize manage of stand-alone photovoltaic system

提出了一个由光伏电池、蓄电池、单向DC-DC变换器和双向DC-DC变换器组成的独立光伏发电系统。为了在不同的工作条件下使直流母线电压稳定,采用一种光伏发电系统的协调控制策略,对系统能量进行管理,使光伏电池和蓄电池协同工作。通过Matlab仿真证明了所提出的控制策略的正确性与可行性。

A stand-alone photovoltaic system that consists of a solar cell array, a battery, a uni-directional DC-DC converter and a bi-directional DC-DC converter, is proposed. In order to maintain DC bus voltage stability in different working conditions, a kind of photovoltaic system coordinate control strategy is presented to manage energy of the system, achieve a collaborative work of photovoltaic cells and battery. Matlab simulations show the correctness and feasibility of the control strategy.