摘要
利用脉宽调制(PWM)方法,对太阳电池的工作点进行跟踪,以获得尽可能多的能量。光伏水泵专用变频装置采用PWM斩波方法,对太阳电池的工作电压进行定电压跟踪,它集MPPT和逆变功能为一体,结构简单,性能可靠,已在青海省运行一年。
In this paper,a special variable frequency unit for solar PV powered pump is described.This tracks the constant voltage output on the PWM method and combines the MPPT and inverter functions in same unit with simple structure and reliability.It has operated for one year in Qinghai Province.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
1994年第3期218-225,共8页
Acta Energiae Solaris Sinica
关键词
光伏系统
逆变器
脉宽调制
太阳能
adapter,constant voltage tracking,prediction value,pulse width modulation (PWM).oscillator controlled by voltage,ration of voltage and frequency