混联式PHEV中DC/DC变换器辐射电磁干扰分析与抑制
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摘要
DC/DC变换器为混联式插电式混合动力汽车(PHEV)重要组成器件,同时也是混联式插电式混合动力汽车最主要的电磁干扰(EMI)源之一。文中首先对混联式PHEV中所用的降压型DC/DC全桥变换器的工作原理和变换器中主要电磁干扰源进行分析,其次基于Buck变换器辐射EMI的模型建立了DC/DC变换器辐射EMI的仿真模型以及对干扰电磁场强度进行了理论推导,在HFSS仿真平台上对产生的辐射EMI进行仿真分析。在此基础上,采取了电磁屏蔽和浮点接地的措施对DC/DC变换器辐射电磁干扰进行抑制,对比分析了抑制前后的电磁场。结果表明:文中提出的抑制措施能有效减小DC/DC变换器中的辐射电磁干扰,从而提高了整车的电磁兼容性。
The DC/DC converter is an important component of the parallel-series plug-in hybrid electric vehicle( PHEV)and is also one of the most important electromagnetic interference( EMI) sources of the PHEV. This paper firstly analyzes the working principle of the step-down DC/DC full-bridge converter used in the PHEV and the main electromagnetic interference sources in the converter. Secondly,based on the radiated EMI model of Buck converter,the radiated EMI simulation model of DC/DC converter was established. The interference electromagnetic field strength was theoretically deduced,and the radiated EMI generated was simulated and analyzed on the HFSS simulation platform. On this basis,electromagnetic shielding and floating-point grounding measures were adopted to suppress the radiated electromagnetic interference of the DC/DC converter,and the electromagnetic fields before and after the suppression were compared and analyzed. The results show that the suppression measures proposed in this paper can effectively reduce the radiated electromagnetic interference in the DC/DC converter and thus improving the electromagnetic compatibility of the whole vehicle.
The DC/DC converter is an important component of the parallel-series plug-in hybrid electric vehicle( PHEV)and is also one of the most important electromagnetic interference( EMI) sources of the PHEV. This paper firstly analyzes the working principle of the step-down DC/DC full-bridge converter used in the PHEV and the main electromagnetic interference sources in the converter. Secondly,based on the radiated EMI model of Buck converter,the radiated EMI simulation model of DC/DC converter was established. The interference electromagnetic field strength was theoretically deduced,and the radiated EMI generated was simulated and analyzed on the HFSS simulation platform. On this basis,electromagnetic shielding and floating-point grounding measures were adopted to suppress the radiated electromagnetic interference of the DC/DC converter,and the electromagnetic fields before and after the suppression were compared and analyzed. The results show that the suppression measures proposed in this paper can effectively reduce the radiated electromagnetic interference in the DC/DC converter and thus improving the electromagnetic compatibility of the whole vehicle.
引文
[1]奕武.插电式混合动力车前景光明[J].汽车与配件,2012,(33):21-23.Yi Wu. Plug-in Hybrid Electric Vehicle has a bright future[J]. Automobile&Parts,2012,(33):21-23.
[2]张永军.我国新能源汽车发展现状及应用前景探讨[J].应用能源技术,2015,(12):24-26.Zhang Yongjun. Discussion on the Development Status and Application Prospect of New Energy Vehicles[J]. Applied energy technology,2015,(12):24-26.
[3]金永花,李相俊.新能源汽车的经济性分析-以比亚迪PHEV和BEV为例[J].可再生能源,2012,30(6):118-126.Jin Yonghua,Li Xiangjun. Economic analysis of new energy vehicles based on PHEV and BEV of BYD[J]. Renewable Energy Resources,2012,30(6):118-126.
[4]闫培如,陶元芳,叶青林.节能环保汽车-插电式混合动力汽车[J].机械工程与自动化,2015,(5):224-226.Yan Peiru,Tao Yuanfang,Ye Qinglin. Energy-saving and Environment-friendly Vehicle:Plug-in Hybrid Electric Vehicl[J]. Mechanical Engineering&Automation,2015,(5):224-226.
[5]张胤,刘方磊,张富忠,等.电动汽车电磁辐射问题研究[J].汽车科技,2017,(5):60-66.Zhang Yin,Liu Fanglei,Zhang Fuzhong. Study on Electromagnetic Radiation of Electric Vehicle[J]. AUTO SCI-TECH,2017,(5):60-66.
[6]罗成霞,王永峰.新能源汽车之电磁兼容性分析[J].环境技术,2015,33(2):28-30.Luo Chengxia,Wang Yongfeng. Analysis on Electromagnetic Compatibili-ty of New Energy Vehicles[J]. Environmental Technology,2015,33(2):28-30.
[7]金松涛,刘青松.混合动力汽车电磁兼容技术研究[J].客车技术与研究,2010,(2):45-47.Jin Songtao,Liu Qingsong. Research on EMC Technology of Hybrid Electric Vehicle[J]. Bus&Coach Technology and Research,2010,(2):45-47.
[8]高军,李旭,汪正胜.电动汽车DC/DC变换器电磁干扰研究[J].电力电子技术,2014,48(2):33-36.Gao Jun,Li Xu,Wang Zhengsheng. Research on the EMI of DC/DC Converter in Electric Vehicles[J]. Power electronics technology,2014,48(2):33-36.
[9] Y. D. Bao,Y. S. Li,Y. Q. Long. Design and Experimental Measurement of EMI Reduction Techniques for Integrated Switching DC/DC Converters[J]. IEEE Canadian Journal of Electrical and Computer Engineering,2017,40(2):116-127.
[10]Youn Hee Lee,Adel Nasiri. Analysis and Modeling of Conductive EMI Noise of Power Electronics Converter in Electric and Hybrid Electric Vehicles[C]. IEEE International Symposium on Power,2008:1952-1957.
[11]AMIR T,E J. Modeling and prediction of conducted EMI noise in a 2-stage interleaved boost DC/DC converter[C]//16th International Conference on Harmon ics and Quality of Power(ICHQP):IEEE Conference Publications,2014:117-121.
[12]白峰,牛忠霞,周东方.开关电源辐射发射的建模与仿真[J].系统仿真学报,2007,19(8):1841-1844.Bai Feng,Niu Zhongxia,Zhou Dongfang. Modeling and Simulation of Radiated Emissions in Switched Mode Power Supply[J]. Journal of System Simulation,2007,19(8):1841-1844.
[13]汪泉弟,刘青松,安宗裕,等.混合动力客车低频电磁辐射机理及抑制方法[J].电力电子技术,2014,48(2):33-36.Wang Quandi,Liu Qingsong,An Zongyu. Electromagnetic Radiation Mechanism and Noise Suppression Method for Hybrid Electric Bus[J].Journal of electrical engineering technology,2014,48(2):33-36.
[14]汪泉弟,安宗裕,郑亚利,等.电动汽车开关电源电磁兼容优化设计方法[J].电工技术学报,2014,29(9):225-231.Wang Quandi,An Zongyu,Zheng Yali,et al. Electromagn-etic Compatibility Optimization Design for Switching Power Supply used in Electric Vehicle[J]. Journal of Electrical Engineering Technology,2014,29(9):225-231.
[15]吴晓静,韩素敏,艾永乐,等. DC-DC变换电路差模传导电磁干扰预测模型研究[J].测控技术,2017,36(1):140-143.Wu Xiaojing,Han Sumin,Ai Yongle,et al. Research on Predicting Model of Differential Mode Conducted EMI in DC-DC Converter Circuit[J]. Measurement&Control Technology,2017,36(1):140-143.
[16]黄保栋,苏利捷,常恒宙,等.混联式PHEV中DC/DC变换器CMEMI研究与抑制[J].广西大学学报(自然科学版),2017,42(6):2040-2049.Huang Baodong,Su Lijie,Chang Hengzhou,et al. Research and suppression of DC/DC converter CM-EMI in parallel-series PHEV[J]. Journal of Guangxi University(Nat Sci Ed),2017,42(6):2040-2049.
[2]张永军.我国新能源汽车发展现状及应用前景探讨[J].应用能源技术,2015,(12):24-26.Zhang Yongjun. Discussion on the Development Status and Application Prospect of New Energy Vehicles[J]. Applied energy technology,2015,(12):24-26.
[3]金永花,李相俊.新能源汽车的经济性分析-以比亚迪PHEV和BEV为例[J].可再生能源,2012,30(6):118-126.Jin Yonghua,Li Xiangjun. Economic analysis of new energy vehicles based on PHEV and BEV of BYD[J]. Renewable Energy Resources,2012,30(6):118-126.
[4]闫培如,陶元芳,叶青林.节能环保汽车-插电式混合动力汽车[J].机械工程与自动化,2015,(5):224-226.Yan Peiru,Tao Yuanfang,Ye Qinglin. Energy-saving and Environment-friendly Vehicle:Plug-in Hybrid Electric Vehicl[J]. Mechanical Engineering&Automation,2015,(5):224-226.
[5]张胤,刘方磊,张富忠,等.电动汽车电磁辐射问题研究[J].汽车科技,2017,(5):60-66.Zhang Yin,Liu Fanglei,Zhang Fuzhong. Study on Electromagnetic Radiation of Electric Vehicle[J]. AUTO SCI-TECH,2017,(5):60-66.
[6]罗成霞,王永峰.新能源汽车之电磁兼容性分析[J].环境技术,2015,33(2):28-30.Luo Chengxia,Wang Yongfeng. Analysis on Electromagnetic Compatibili-ty of New Energy Vehicles[J]. Environmental Technology,2015,33(2):28-30.
[7]金松涛,刘青松.混合动力汽车电磁兼容技术研究[J].客车技术与研究,2010,(2):45-47.Jin Songtao,Liu Qingsong. Research on EMC Technology of Hybrid Electric Vehicle[J]. Bus&Coach Technology and Research,2010,(2):45-47.
[8]高军,李旭,汪正胜.电动汽车DC/DC变换器电磁干扰研究[J].电力电子技术,2014,48(2):33-36.Gao Jun,Li Xu,Wang Zhengsheng. Research on the EMI of DC/DC Converter in Electric Vehicles[J]. Power electronics technology,2014,48(2):33-36.
[9] Y. D. Bao,Y. S. Li,Y. Q. Long. Design and Experimental Measurement of EMI Reduction Techniques for Integrated Switching DC/DC Converters[J]. IEEE Canadian Journal of Electrical and Computer Engineering,2017,40(2):116-127.
[10]Youn Hee Lee,Adel Nasiri. Analysis and Modeling of Conductive EMI Noise of Power Electronics Converter in Electric and Hybrid Electric Vehicles[C]. IEEE International Symposium on Power,2008:1952-1957.
[11]AMIR T,E J. Modeling and prediction of conducted EMI noise in a 2-stage interleaved boost DC/DC converter[C]//16th International Conference on Harmon ics and Quality of Power(ICHQP):IEEE Conference Publications,2014:117-121.
[12]白峰,牛忠霞,周东方.开关电源辐射发射的建模与仿真[J].系统仿真学报,2007,19(8):1841-1844.Bai Feng,Niu Zhongxia,Zhou Dongfang. Modeling and Simulation of Radiated Emissions in Switched Mode Power Supply[J]. Journal of System Simulation,2007,19(8):1841-1844.
[13]汪泉弟,刘青松,安宗裕,等.混合动力客车低频电磁辐射机理及抑制方法[J].电力电子技术,2014,48(2):33-36.Wang Quandi,Liu Qingsong,An Zongyu. Electromagnetic Radiation Mechanism and Noise Suppression Method for Hybrid Electric Bus[J].Journal of electrical engineering technology,2014,48(2):33-36.
[14]汪泉弟,安宗裕,郑亚利,等.电动汽车开关电源电磁兼容优化设计方法[J].电工技术学报,2014,29(9):225-231.Wang Quandi,An Zongyu,Zheng Yali,et al. Electromagn-etic Compatibility Optimization Design for Switching Power Supply used in Electric Vehicle[J]. Journal of Electrical Engineering Technology,2014,29(9):225-231.
[15]吴晓静,韩素敏,艾永乐,等. DC-DC变换电路差模传导电磁干扰预测模型研究[J].测控技术,2017,36(1):140-143.Wu Xiaojing,Han Sumin,Ai Yongle,et al. Research on Predicting Model of Differential Mode Conducted EMI in DC-DC Converter Circuit[J]. Measurement&Control Technology,2017,36(1):140-143.
[16]黄保栋,苏利捷,常恒宙,等.混联式PHEV中DC/DC变换器CMEMI研究与抑制[J].广西大学学报(自然科学版),2017,42(6):2040-2049.Huang Baodong,Su Lijie,Chang Hengzhou,et al. Research and suppression of DC/DC converter CM-EMI in parallel-series PHEV[J]. Journal of Guangxi University(Nat Sci Ed),2017,42(6):2040-2049.