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文章摘要
无桥DBPFC变换器的虚拟超局部优化控制策略
Virtual Super Local Optimization Control Strategy for Bridgeless DBPFC Converters
Received:August 20, 2020  Revised:September 02, 2020
DOI:10.19753/j.issn1001-1390.2023.08.004
中文关键词: 无桥DBPFC变换器  虚拟dq模式  超局部优化控制  电能质量
英文关键词: bridgeless Dual_Boost_PFC converter  virtual dq mode  super-local optimization control  the power quality
基金项目:国家自然科学基金项目(51877099);江苏高校优势学科建设工程项目(61074019)
Author NameAffiliationE-mail
Zheng Hong Jiangsu University 1825554500@qq.com 
Guo Qijin* Jiangsu University 1825554500@qq.com 
Shen Jianyang Jiangsu University 1825554500@qq.com 
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中文摘要:
      针对传统平均电流控制的无桥Dual_Boost功率因数校正(DBPFC)变换器存在功率因数低,总谐波失真大,动态响应速度慢以及输出电压纹波较高等不足,提出一种虚拟超局部优化控制策略。通过坐标变换的方法建立了变换器在虚拟dq模式下的工作模型,实现对电流的无静差跟踪,并在此基础上设计了一种超局部优化控制策略,改善了基于数学模型设计的电流控制器对参数变化及内、外部扰动敏感的缺陷,克服控制器对参数的依赖。仿真和实验结果表明文章所提虚拟超局部优化控制的无桥DBPFC变换器的功率因数可达0.996,总谐波失真为4.93%,且具有良好的动态响应能力和较高的电能质量水平。
英文摘要:
      In view of low power factor, high total harmonic distortion, slow dynamic response speed and high output voltage ripple in bridgeless Dual_Boost power factor correction (DBPFC) converter controlled by traditional average current control, a virtual super-local optimization control strategy is proposed.By means of coordinate transformation, the working model of the converter in the virtual DQ mode is established to realize the tracking of the current without static difference. On this basis, a super-local optimization control strategy is designed to improve the sensitivity of the current controller designed based on the mathematical model to parameter changes and internal and external disturbances, and to overcome the dependence of the controller on parameters. The simulation and experimental results show that the power factor of the proposed bridgeless DBPFC converter controlled by virtual super-local optimization strategy can reach 0.996, the total harmonic distortion is 4.93%, and it has good dynamic response ability and high power quality level.
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