›› 2015, Vol. 28 ›› Issue (10): 161-.

• 论文 • 上一篇    下一篇

并联BUCK变换器的非线性控制

李少龙,金爱娟,刘安康,叶芳,徐向丽   

  1. (1.上海理工大学 上海市现代光学系统重点实验室,上海 200093;2.上海理工大学 教育部光学仪器与系统工程研究中心,上海 200093; 3.上海理工大学 光电信息与计算机工程学院,上海 200093)
  • 出版日期:2015-10-15 发布日期:2015-10-29
  • 作者简介:刘安康(1991—),男,硕士研究生。研究方向:电力电子与电力传动。E-mail:761523562@qq.com

Nonlinear Control of Parallel BUCK Converter

LI Shaolong,JIN Aijuan,LIU Ankang,YE Fang,XU Xiangli   

  1. (1.Shanghai Key Laboratory of Modern Optical System,University of Shanghai for Science and Technology,Shanghai 200093,China; 2.The Ministry of Education Optical Instrument and Systems Engineering Research Center,University of Shanghai for Science and Technology,Shanghai 200093,China; 3.School of Optical-Electrical Information and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)
  • Online:2015-10-15 Published:2015-10-29

摘要: 针对DC-DC变换器在开关工作频率下,系统易产生高次谐波、分叉混沌状态,以及系统稳定性降低的问题。在适当的频率和振幅下,通过采用参数共振干扰法干扰系统参数,可避免系统出现分岔混沌状态,抑制高次谐波,提高系统稳定性。文中通过研究电压控制模式下并联BUCK变换器分岔混沌现象,证明参数共振干扰法可抑制分岔与混沌,减小系统相位移动,增强系统的稳定性。

关键词: 并联BUCK, 参数共振干扰, 非线性

Abstract: For DC-DC converter working in the switch operating frequency,the system is prone to produce high frequency harmonics,bifurcation and chaos,reducing the stability of system.Under proper frequency and amplitude,the change of system parameters by the parametric resonance interference method can avoid chaos system bifurcation and suppress high frequency harmonics.Our study of the voltage control mode in parallel BUCK converter shows that the parameter resonance interference method can inhibit the bifurcation and chaos with improved system stability.

Key words: chaos;bifurcation;nonlinear

中图分类号: 

  • TM564