基于MSP430F149的光伏MPPT控制器的设计

本文介绍了一种采用超低功耗单片机MSP430F149控制系统来实现太阳能光伏电池最大功率点跟踪的精简设计,在这个设计中提出来采用变步长扰动分析法来实现MPPT的控制,并分析和比较了Buck和Boost电路的优缺点,然后采用Boost电路结合MSP430F149单片机完成了MPPT控制器的设计。最后,采取模拟实验的方法对控制器的功能进行了验证。结果表明,该设计不但电路设计简单,软硬件结合,控制方法灵活,而且能够有效的完成最大功率跟踪的目的。

New Research of photovoltaic system method for the maximum power

This paper introduces the method which uses the ultra low-power single-chip MSP430F149 control system to realize PV＇s MPPT. MPPT is implemented through the variable-step perturbation analysis method, and the advantages and disadvantages of the Buck circuit and Boost circuit are analyzed and comprised in this paper. Then the author completes the design of the MPPT controller through the combination of Boost circuit and MSP430F149 MCU. At last, the function of controller is tested by mock experiment. The result shows that this design not only has simple circuit design and flexible control method, but also can achieve the target of maximum power point tracking effectively.