中文摘要：

为了能高效地利用太阳电池,需要对光伏电池进行最大功率点跟踪（MPPT）,最终实现光伏电池的最大功率输出。根据增量电导法原理,提出了一种基于Boost电路占空比理论的改进的增量电导法,首先要将当前的输出功率计算出来,再将当前的输出功率P（k）与前一次存储的功率P（k-1）进行比较,从而控制Boost电路的占空比实现最大功率跟踪,能够使输出端的电压更平稳变化,以更好地跟踪太阳电池的最大功率点,提高太阳电池输出效率。

英文摘要：

In order to efficiently use the solar energy battery, it is necessary to maximize power point tracking photovoltaic cells （maximun power point tracing,MPPT）, and finally realize the maximum power output of photovoltaic battery. According to the principle of incremental conductance method, a theory based on Boost circuit duty ratio of the improved incremental conductance method was put forward. The output power of the current was calculated, then the currant output power P（k） and the previous stored power P（k-1） was compared to control the duty ratio of the Boost circuit and achieve maximum power tracking, which could make the output voltage change more smoothly, track well the maximum power point of solar cells, and improve the efficiency of the solar cell output.