Buck型变换电路元件参数选择分析研究
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摘要
介绍了Buck变换电路的工作原理,探讨了Buck变换电路电感元件和电容选择的原则,根据不同的电感值,分析了电感电流三种不同的工作状态,并给出了三种不同状态的仿真分析,经仿真验证,三种状态仿真结果和理论分析一致.对于电容值选取,在考虑纹波电压的情况下,分析了电容值的选取原则,并计算出纹波电压和电容值之间关系式,最后根据设定的参数值给出了纹波电压的仿真波形图,验证了电容值和纹波电压关系的正确性.直流变换电路元件参数分析为开关电源电路设计提供了新的指导方法.
This paper introduces the working principle of Buck converter circuit,discusses the principle of inductor component and capacitor selection of Buck converter circuit,analyzes the three different working states of inductor current according to the different inductance values,and gives the three different simulation analyses of the different state. The simulation results verify that the three state simulation results are consistent with the theoretical analysis.For the selection of the capacitance value,in the case of considering the ripple voltage,the principle of selecting the capacitance value is analyzed and the relationship between the ripple voltage and the capacitance value is calculated.Finally,the ripple voltage is given according to the set parameter value. The waveform is simulated to verify the correctness of the relationship between the capacitance value and the ripple voltage. The parameter analysis of DC conversion circuit components provides a new guiding method for switching power supply circuitdesign.
This paper introduces the working principle of Buck converter circuit,discusses the principle of inductor component and capacitor selection of Buck converter circuit,analyzes the three different working states of inductor current according to the different inductance values,and gives the three different simulation analyses of the different state. The simulation results verify that the three state simulation results are consistent with the theoretical analysis.For the selection of the capacitance value,in the case of considering the ripple voltage,the principle of selecting the capacitance value is analyzed and the relationship between the ripple voltage and the capacitance value is calculated.Finally,the ripple voltage is given according to the set parameter value. The waveform is simulated to verify the correctness of the relationship between the capacitance value and the ripple voltage. The parameter analysis of DC conversion circuit components provides a new guiding method for switching power supply circuitdesign.
引文
[1]孔维功,李丽荣,贾耀华.基于数字控制Buck电路的DC-DC电源变换器仿真研究[J].电气传动,2017,47(10):33-38.
[2]杨帆.基于LTC3879高效同步整流BUCK变换器的设计[J].通信电源技术,2018,35(3):104-106.
[3]皇金锋.基于PSIM的Boost型变换器储能元件参数的选择[J].电源技术,2011,35(9):1136-1139.
[4] JUAN R,DIEGO G L,PABLO F M,et al. Reproducing single-carrier digital modulation schemes for VLC by controlling the first switching harmonic of the DC-DC power converter output voltage ripple[J]. IEEE Transactions on Power Electronics,2018,33(9):7994-8010.
[5]陈鸣,李舒然,陈方林. Buck变换器输入/输出滤波相关问题研究[J].中山大学学报(自然科学版),2016,55(1):75-79.
[6]林关成,陈晓.基于BUCK变换器的直流稳压电源设计[J].电子设计工程,2019,27(8):11-14.
[7]陈亚爱,梁新宇,周京华.双向DC-DC变换器拓扑结构综述[J].电气自动化,2017,39(6):1-6.
[8]冷朝霞,刘庆丰. Buck变换器直接电流和直接电压模型预测控制[J].电力电子技术,2018,52(2):94-95.
[9]国伟,王立华.基于PSIM的开关电源仿真设计[J].通信电源技术,2013,30(5):13-15,41.
[10] ZHOU S H,ZHOU G H,ZENG SH H,et al. Sample-data modeling and dynamical effect of output-capacitor time-constant for valley voltage-mode controlled buck-boost converter[J]. China Phys B,2017,26(11):515-525.
[11]李昂,向翰丞,陈鑫,等. CCM模式下非理想Buck-Boost变换器的建模研究[J].陕西理工大学学报(自然科学版),2018,34(4):23-27.
[12]王武军,路广,李鹏翀,等. Buck变换器近远端反馈的仿真分析与应用[J].电子技术应用,2018,44(2):120-123.
[13]朱荣华,周健洋,张玉浩.高速低功耗buck变换器设计[J].电子产品世界,2018,25(4):48-51.
[14]吴杰,林栋,高科.移动电源用数字化双向DC/DC变换器的研究与实现[J].微电子学与计算机,2018,35(1):72-78.
[15]王力夫,金海明.电力电子技术[M].北京:北京邮电大学出版社,2017.
[16]浣喜明,姚为正.电力电子技术[M].北京:高等教育出版社,2018.
[17]刘健,程红丽,王立,等.电流跟踪数字控制的Buck DC-DC变换器[J].电工技术学报,2011,26(8):50-56.
[18]李培正,张胜,陈志威.基于PID算法的DC-DC电源负载调整率改进研究[J].电源技术,2016,40(6):1286-1289.
[19] ZULUETA E,RICO T. Hybrid modeling of open loop DC-DC converters[J]. Ingeniare Revista Chilena De Ingeniería,2003,11(2):41-47.
[20]许丽君,沙金,许多,等.开关DC-DC变换器电容电流脉冲序列控制[J].电工技术学报,2016,31(18):100-107.
[2]杨帆.基于LTC3879高效同步整流BUCK变换器的设计[J].通信电源技术,2018,35(3):104-106.
[3]皇金锋.基于PSIM的Boost型变换器储能元件参数的选择[J].电源技术,2011,35(9):1136-1139.
[4] JUAN R,DIEGO G L,PABLO F M,et al. Reproducing single-carrier digital modulation schemes for VLC by controlling the first switching harmonic of the DC-DC power converter output voltage ripple[J]. IEEE Transactions on Power Electronics,2018,33(9):7994-8010.
[5]陈鸣,李舒然,陈方林. Buck变换器输入/输出滤波相关问题研究[J].中山大学学报(自然科学版),2016,55(1):75-79.
[6]林关成,陈晓.基于BUCK变换器的直流稳压电源设计[J].电子设计工程,2019,27(8):11-14.
[7]陈亚爱,梁新宇,周京华.双向DC-DC变换器拓扑结构综述[J].电气自动化,2017,39(6):1-6.
[8]冷朝霞,刘庆丰. Buck变换器直接电流和直接电压模型预测控制[J].电力电子技术,2018,52(2):94-95.
[9]国伟,王立华.基于PSIM的开关电源仿真设计[J].通信电源技术,2013,30(5):13-15,41.
[10] ZHOU S H,ZHOU G H,ZENG SH H,et al. Sample-data modeling and dynamical effect of output-capacitor time-constant for valley voltage-mode controlled buck-boost converter[J]. China Phys B,2017,26(11):515-525.
[11]李昂,向翰丞,陈鑫,等. CCM模式下非理想Buck-Boost变换器的建模研究[J].陕西理工大学学报(自然科学版),2018,34(4):23-27.
[12]王武军,路广,李鹏翀,等. Buck变换器近远端反馈的仿真分析与应用[J].电子技术应用,2018,44(2):120-123.
[13]朱荣华,周健洋,张玉浩.高速低功耗buck变换器设计[J].电子产品世界,2018,25(4):48-51.
[14]吴杰,林栋,高科.移动电源用数字化双向DC/DC变换器的研究与实现[J].微电子学与计算机,2018,35(1):72-78.
[15]王力夫,金海明.电力电子技术[M].北京:北京邮电大学出版社,2017.
[16]浣喜明,姚为正.电力电子技术[M].北京:高等教育出版社,2018.
[17]刘健,程红丽,王立,等.电流跟踪数字控制的Buck DC-DC变换器[J].电工技术学报,2011,26(8):50-56.
[18]李培正,张胜,陈志威.基于PID算法的DC-DC电源负载调整率改进研究[J].电源技术,2016,40(6):1286-1289.
[19] ZULUETA E,RICO T. Hybrid modeling of open loop DC-DC converters[J]. Ingeniare Revista Chilena De Ingeniería,2003,11(2):41-47.
[20]许丽君,沙金,许多,等.开关DC-DC变换器电容电流脉冲序列控制[J].电工技术学报,2016,31(18):100-107.