移动电源用数字化双向DC/DC变换器的研究与实现
|
摘要
以移动电源为应用背景,研究了一种以Buck/Boost作为拓扑结构的数字化双向DC/DC变换器.分析了双向Buck/Boost变换器不同工作模式下的的工作原理和控制方式,研究了影响数字控制系统控制性能的关键参数和数字控制算法的实现方法.最后,以dsPIC33为控制核心设计了一台功率为45 W的实验样机以验证设计的正确性.实验结果证明,系统能良好实现恒压恒流充电和能量双向流动的自由切换.
A digital controlled bi-directional DC/DC converter adopting the Buck-Boost topology for power bank application is studied.The circuit principles and control method of converter's different operation modes are analyzed.The paper also analyzes the key parameters which effect the performance of digital controlled system and studys the method of implementation of digital controller.Finally,a 45 W experimental prototype is built with dsPIC33 microcontroller to validate the design.The experimental results show that the design realizes energy conversion in bi-directional freely and has a good effect of constant voltage-constant voltage charging process.
A digital controlled bi-directional DC/DC converter adopting the Buck-Boost topology for power bank application is studied.The circuit principles and control method of converter's different operation modes are analyzed.The paper also analyzes the key parameters which effect the performance of digital controlled system and studys the method of implementation of digital controller.Finally,a 45 W experimental prototype is built with dsPIC33 microcontroller to validate the design.The experimental results show that the design realizes energy conversion in bi-directional freely and has a good effect of constant voltage-constant voltage charging process.
引文
[1]刘伟达,董林玺.可供便携式设备充电的移动电源设计[J].电子器件,2014,37(4):795-798.
[2]牛小玲,王军,李雷达.便携式移动电源的设计[J].实验科学与技术,2015,13(5):11-15.
[3]李演明,柴红,张豪,等.一种具有电源路径管理的高效移动电源方案[J].电源技术,2016,40(9):1851-1853.
[4]童亦斌,吴峂,金新民,等.双向DC/DC变换器的拓扑研究[J].中国电机工程学报,2007,27(13):81-86.
[5]Kazimierczuk M K,Sathappan N,Czarkowski D.Voltage-mode-controlled PWM buck DC-DC converter with a proportional controller[C]∥Aerospace and Electronics Conference,1993.IEEE,1993:413-419.
[6]张卫平.开关变换器的建模与控制[M].北京:中国电力出版社,2006.
[7]Sable D M,Ridley R B.Comparison of performance of single-loop and current-injection control for PWM converters that operate in both continuous and discontinuous modes of operation[J].IEEE Transactions on Power Electronics,1992,7(1):136-142.
[8]Kondrath N,Kazimierczuk M K.Control-to-output transfer function of peak current mode controlled PWN DC-DC boost converter in CCM[J].Electronics letters,2011,47(17):991-993.
[9]Prodic A,Maksimovic D,Erickson R W.Design and implementation of a digital PWM controller for a highfrequency switching DC-DC power converter[C]∥Industrial Electronics Society,2001.IEEE,2001,2:893-898.
[10]Cave-Ayland K,Becerra V M,Potter B,et al.Choosing the most suitable analogue redesign method for forward-type digital power converters[C]∥Power Electronics,Drives and Energy Systems(PEDES),2012IEEE International Conference on.IEEE,2012:1-6.
[2]牛小玲,王军,李雷达.便携式移动电源的设计[J].实验科学与技术,2015,13(5):11-15.
[3]李演明,柴红,张豪,等.一种具有电源路径管理的高效移动电源方案[J].电源技术,2016,40(9):1851-1853.
[4]童亦斌,吴峂,金新民,等.双向DC/DC变换器的拓扑研究[J].中国电机工程学报,2007,27(13):81-86.
[5]Kazimierczuk M K,Sathappan N,Czarkowski D.Voltage-mode-controlled PWM buck DC-DC converter with a proportional controller[C]∥Aerospace and Electronics Conference,1993.IEEE,1993:413-419.
[6]张卫平.开关变换器的建模与控制[M].北京:中国电力出版社,2006.
[7]Sable D M,Ridley R B.Comparison of performance of single-loop and current-injection control for PWM converters that operate in both continuous and discontinuous modes of operation[J].IEEE Transactions on Power Electronics,1992,7(1):136-142.
[8]Kondrath N,Kazimierczuk M K.Control-to-output transfer function of peak current mode controlled PWN DC-DC boost converter in CCM[J].Electronics letters,2011,47(17):991-993.
[9]Prodic A,Maksimovic D,Erickson R W.Design and implementation of a digital PWM controller for a highfrequency switching DC-DC power converter[C]∥Industrial Electronics Society,2001.IEEE,2001,2:893-898.
[10]Cave-Ayland K,Becerra V M,Potter B,et al.Choosing the most suitable analogue redesign method for forward-type digital power converters[C]∥Power Electronics,Drives and Energy Systems(PEDES),2012IEEE International Conference on.IEEE,2012:1-6.