一种改进干扰观察法的仿真研究

Simulation Research of an Improved Perturbation and Observation Method

为了克服经典干扰观察法用于光伏电池最大功率点跟踪时会导致功率损耗这一缺点,该文提出了一种变步长的干扰观察法,并用matlab对其进行了建模仿真。仿真结果表明,改进干扰观察法可以精确地跟踪光伏电池的最大功率点,并且不会造成功率损失,具有较强的可行性。

One flaw of the classical perturbation and observation method is that it can cause power loss when it is used to track the maximum power point of PV cell. In order to overcome this flaw, an improved perturbation and observation method with variable step is presented and validated by simulation using MATLAB. The simulation results demonstrate that the improved perturbation and observation method can track the maximum power point of PV cell accurately without causing power loss. So it is strongly feasible.