【摘要】 针对野外自动气象站供电困难的问题,设计了一种可以满足供电需求的小型光伏发电控制系统。按照小型光伏发电控制系统的要求对系统硬件电路进行了设计,以高性能的32位DSP芯片TMS320F2812为核心,系统由太阳能控制器、蓄电池内阻测量电路、DC/DC直流稳压电路、DC/AC逆变电路等组成。为了使整个系统的效率达到最大化,让太阳能电池始终工作于最大功率点处,本系统将传统的扰动观察法和阻抗匹配法相结合,实现最大功率点跟踪。调试结果表明,跟踪器具有良好的跟踪性能,满足野外自动气象站的供电要求。更多还原

【Abstract】 Aiming at the problem of power supply is difficulty in the wild automatic meteorological station,a small-scale photovoltaic power generation control system is designed.In accordance with the requirements of the small-scale photovoltaic power generation control system,the hardware circuit is designed.The system uses high-performance 32-bit DSP TMS320F2812 as the core,which includes the solar controller,battery internal resistance measurement circuit,DC/DC voltage stabilizing power circuit and DC/AC inverter circuit.In order to maximize the efficiency of the whole system,the solar cell is always working at the maximum power point.the system combines with the traditional perturbation observation and impedance matching method for maximum power point tracking.The tracking results show that the tracker has good tracking performance,and meets the requirements of the field of automatic meteorological station.更多还原