光伏电池最大功率点跟踪

为了快速稳定地跟踪到光伏电池最大功率点,提出基于固定电压法和导纳增量法相结合的光伏电池最大功率点跟踪(MPPT)方案.固定电压法用来迅速跟踪近似最大功率点,导纳增量法则用来进行精确跟踪,仿真结果表明此方案能快速地跟踪到光伏电池的最大功率点.在此基础上加入环境判断因子,提高了光伏电池在多云天气情况下最大功率点跟踪的稳定性.

Research of maximum power point tracking method for photovoltaic systems

For rapidly and stably capturing the maximum power point of photovoltaic cells,a method was proposed based on the Combination of fixed-voltage method and the admittance increment method to achieve maximum power point tracking（MPPT） for photovoltaic cell.The fixed-voltage method was used to fast track the approximate maximum power point,while the admittance increment rules were used for accurate tracking.The system stability of MPPT in the case of cloudy weather is improved by proposing the environment determining factors.In the changing enviroment,by simulating the maximum power point tracking for photovoltaic cells,it is verified that this program can quickly and stably arrive at the maximum power point.