太阳能路灯系统的仿真研究

摘要

Research on the problems of olaf street lamps system.Traditional storage battery can not solve the contradiction between the tracking control of photovoltaic power and charging of batteries, which shortens the service life of the street lamps system.In order to prolong the life of solar lights system, photovoltaic system design method is proposed based on the super capacitance.The super capacitance is connected in front of the photovoltaic systems,and charges the battery in deficiencies of light, thus reducing the influence of illumination changes on recharge condition and ensuring the photovoltaic battery power and the battery charge demands.Simulation model is established on simulink/matlab to verify the validity.Experimental results show that this method has solved the shortcomings of the traditional method, prolonged the solar lamps life, and improved the system efficiency.%研究太阳能路灯系统,针对太阳能路灯安全性和寿命问题,传统铅酸蓄电池不能很好解决光伏最大功率跟踪控制与蓄电池的合理充放电之间的矛盾,导致太阳能路灯系统提前损坏,寿命缩短.为了有效延长太阳能路灯系统寿命,提出一种基于超级电容的光伏系统设计方法.将超级电容连接在光伏系统的前端,在光照不足的情况下,采取超级电容为蓄电池的充电控制策略,从而减少光照变化对充电条件的影响,可保证光伏电池获得最大功率跟踪的,蓄电池的合理充放电要求得到满足.在Matlab上仿真建模,进行了仿真,实验结果表明,提出的方法解决了传统方法的不足,有效的延长了太阳能路灯系统寿命,提高了使用效率.