摘要
针对目前太阳能发电系统效率低、铅酸蓄电池使用寿命短等问题,利用微控制器MC9S08QG8设计一种太阳能控制器。该控制器采用升降压式DC/DC转换电路、利用电压扰动法实现最大功率点跟踪,使太阳能电池始终保持最大功率输出;控制器还能实时测量蓄电池的端电压,对蓄电池进行充放电保护。该控制器软硬件结合、可靠性高,提高了太阳能发电系统的效率,延长了蓄电池的使用寿命。
In view of the low efficiency of solar photovoltaic system,short service life of the lead-acid battery and other issues,designed a solar controller using microcontroller MC9S08QG8.The controller uses Buck-Boost DC/DC conversion circuit and voltage perturb algorithm to achieve maximum power point tracking,and maintains the largest output of the solar cell.The controller also measures the battery voltage,and achieves the battery charge and discharge protection.The controller integrates software and hardware,have high reliability,increases solar photovoltaic system efficiency and extends battery life.
出处
《节能》
2008年第12期8-11,共4页
Energy Conservation
