变频空调PFC控制技术及算法研究
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摘要
本文详细介绍了一种变频空调PFC控制原理和控制方法。通过检测电源瞬时平均电流、电源平均电流,直流母线输出电压,自动计算、控制PWM波的占空比,实现直流母线电压的升压和稳定,自动调节电源功率因素,控制模型简单,控制方便,无需过多的硬件电路,达到理想的功率因素自动调节的目的。
This article introduced the control principles and methods of PFC in inverter air-conditiners' designing. By detection the average power current, the instantaneous power current, and the dc bus voltage output, it automatically calculate and control the duty ratio of PWM wave, automatically djust the power supply power factor, realize the dc bus voltage booster and stable. Control model is simple and control is convenient, without too much hardware circuit. Achieve the goal of the ideal power factor automatic adjustment.
This article introduced the control principles and methods of PFC in inverter air-conditiners' designing. By detection the average power current, the instantaneous power current, and the dc bus voltage output, it automatically calculate and control the duty ratio of PWM wave, automatically djust the power supply power factor, realize the dc bus voltage booster and stable. Control model is simple and control is convenient, without too much hardware circuit. Achieve the goal of the ideal power factor automatic adjustment.
引文
[1]王慧贞,张军达.一种新型无桥Boost PFC电路.电工技术学报,第25卷第5期,2010.5,110-113.
[2]马红波,等.单开关管无桥SEPIC PFC变换器,电力自动化设备.电机与控制学报,第34卷第4期,2014.4,73-75.
[3]王大庆,等.单级Boost桥式PFC变换器的Buck启动策略研究.中国电机工程学报,第33卷第9期,2013.3.25,26-29.
[4]李冬,阮新波.高效率的BOOST型功率因数校正预调节器[J].中国电机工程学报,2004,24(10):153-156.
[2]马红波,等.单开关管无桥SEPIC PFC变换器,电力自动化设备.电机与控制学报,第34卷第4期,2014.4,73-75.
[3]王大庆,等.单级Boost桥式PFC变换器的Buck启动策略研究.中国电机工程学报,第33卷第9期,2013.3.25,26-29.
[4]李冬,阮新波.高效率的BOOST型功率因数校正预调节器[J].中国电机工程学报,2004,24(10):153-156.