摘要
高能加速器的电源系统是加速器最大的电能使用系统,提高加速器的运行效率和经济性一直是电源系统的目标。为提高开关电源的功率因数,在数字化开关稳流电源的基础上,设计了一种功率因数校正(PFC)的数字控制方案。重点阐述了基于硬件描述语言(VHDL)的数字控制环的算法、多通道模数转换器(ADC)的控制和脉宽调制(PWM)信号的产生,以及如何将其作为片上系统的用户外设。经测试表明,该方案有效地提高了开关电源的功率因数,达到了预期的设计目标。
The power supply system of high energy accelerators is the biggest consumer of power energy. The improvement of the power supply efficiency is much important for designing the power supply system. The digital control method of the power factor correction （PFC） for switching-mode power supply was designed, which was based on the digital-controlled current stabilized power supply. The implementations of the digital control loop, multi-channel ADC and the generation of the pulse width modulation （PWM） were described. It is proved that the design of the digital control PFC can improve the power factor of switching-mode power supply and meet the design requirements.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2009年第7期654-657,共4页
Atomic Energy Science and Technology
关键词
功率因数校正
数字化控制
现场可编程门阵列
片上可编程系统
用户外设
power factor correction
digital control
field programmable gate array
system on a programmable chip
custom peripherals
