【摘要】 在传统的太阳能路灯系统中,通常经过防电流倒灌二极管将太阳能板与蓄电池直接相连,这将导致太阳能板的利用效率低,同时容易使蓄电池长期处于欠充满状态,造成其使用寿命的缩减。本文在研究太阳电池电路模型的基础上,提出了一种数模混合的最大功率点追踪(MaximPowerPointTracking,简称MPPT)策略,它可最大程度地利用太阳能,同时对固态光源LED的驱动电路做了研究,最后用实验验证了该方案的高效性和实用性。更多还原

【Abstract】 In conventional charging circuit of solar lighting system,the solar cell is often connected to battery by a blockading diode,which will cause poor efficiency of solar energy,and it will also make the battery lack of charging,thus shorten its life.This paper takes research in the circuit model of the cell,and then proposes a new stratedy based on analog-digital control for Maxim Power Point Tracking(MPPT) which will make the best use of solar energy.The authors also do research in the Light Emitting Diode(LED) lighting system.At last experiments are conducted to verify the supposition.更多还原