摘要
针对实时追踪光伏阵列最大功率输出的问题,设计了一种通过检测光伏阵列输出电压和电流的大小,实时高速改变充电控制脉冲的占空比,从而实现最大功率点跟踪的充电控制器。采用CS51221芯片和DC-DC变换电路实现了这种控制方案,并对其进行了计算机仿真,仿真结果表明此方案能很好地实时追踪光伏阵列最大功率点,有效的提高能源的利用率。
A photovohaic array charge controller is designed to solve the problem of real - time tracking of maximum power output. The duty cycle of charger is determined through real - time detecting voltage and current of PV Array, The chip CS51221 and a DC - DC converter are used to the design scheme. The computer simulation proves that the scheme can track the maximum power point accurately.
出处
《电气自动化》
2011年第5期28-29,51,共3页
Electrical Automation
