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陈盛,陈道炼.反激式高频环节AC-AC变换器并联技术研究[J].电源学报,2011,9(2):24-28,50
反激式高频环节AC-AC变换器并联技术研究
Research on Paralleled Flyback Type AC-AC Converters with High Frequency Link
投稿时间:2011-01-03  修订日期:2011-01-10
DOI:10.13234/j.issn.2095-2805.2011.2.24
中文关键词:  反激式  AC-AC变换器  高频环节  主从式并联控制
英文关键词:flyback type  AC-AC converter  high frequency link  master-slave mode parallel control
基金项目:国家自然科学基金(50577031)
作者单位E-mail
陈盛 福州大学电气工程与自动化学院 chensheng402@yahoo.com.cn 
陈道炼 福州大学电气工程与自动化学院  
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中文摘要:
      针对反激式高频环节AC-AC变换器输出容量小的特点,提出并研究了这类变换器多模块主从式并联控制策略。并联控制外环采用输出电压瞬时值反馈,内环取各模块的副边电感电流平均值作为均流控制变量,从而去控制各从变换器的工作,使各从变换器副边电流与主变换器一致,达到并联均流的目的。文中给出了两个变换器模块并联实例,并对其进行了稳态和动态仿真。仿真结果表明,这类并联变换器具有良好的负载适应能力和电压调整能力,均流程度好,稳压性较好,动态响应速度快等优点,为这类变换器在大容量场合的应用奠定了关键技术基础。
英文摘要:
      Aiming at the small capacity of flyback type AC-AC converter with high frequency link,a master-slave mode parallel control method is proposed.Transient output voltage feedback is adopted for the outer control loop.The average inductance currents of secondary winding of every converter are sampled for the inner loop to be the average currents,which is used to control the slave converters and ensure the current of secondary winding of slaves equate to the master for current-sharing accomplishment.Taking a two-module parallel for example,its simulation results are given.The results indicate that the paralleled system has some advantages,such as strong adaptability to various loads,better voltage regulation and current-sharing,stable output voltage and rapid dynamic response.This kind of parallel controlling strategy will lay a strong technology foundation for the converters application in higher power capacity conversion.
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