具有TMPPT功能的数字式光伏水泵系统的设计

Design of digital photovoltaic pumping system with the function of true maximum power point tracking

摘要: 设计了一种基于16位微处理器结构的简单全数字式光伏水泵系统。系统采用频率微分逼近法实现了太阳电池的真正最大功率跟踪(TMPPT)功能，运行结果证明系统运行稳定可靠，效率高于传统恒压跟踪(CVT)方式；系统具有完善的保护功能，可以实现无人值守工作。
- 光伏水泵系统 /
- 真正最大功率跟踪(TMPPT) /
- 恒压跟踪(CVT) /
- 频率微分
Abstract: A kind of digital photovoltaic pumping system was designed, which is simple in structure, based on 16 bits single-chip microprocessor. The system uses the method of frequency differential approximation to realize the true maximun power point tracking(TMPPT) function of solar cells. The result proves that the system runs very reliably, and the efficiency is higher than that of the traditional contant voltage tracking(CVT) method. In addition, the system has perfect protection functions, and it can run without operators.
- photovoltaic pumping system /
- true maximum power point tracking(TMPPT) /
- constant voltage tracking(CVT) /
- frequency differential