混合动力客车低频电磁辐射机理及抑制方法

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摘要某混合动力客车低频电场和磁场辐射水平存在超标问题,通过分析车内主要电磁干扰源的特性,研究了整车电场和磁场干扰的产生机理,明确了驱动电机三相工作电流、电机控制器功率开关器件动作,以及DC-DC电源变换器开关器件通断是整车辐射的主要干扰源。另外,针对干扰源的特性,分别制定和采取了相应的干扰抑制措施。最后,通过实验对比验证了所采用的干扰抑制措施能够减小整车低频电场和磁场辐射的水平。此外,该措施能够为提高其他混合动力汽车电磁兼容性提供参考。

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	汪泉弟
	刘青松
	安宗裕
	丁良旭

关键词 ：混合动力汽车, 电磁干扰, 低频电磁辐射, 产生机理, 抑制措施

Abstract：Radiation emission level of a kind of hybrid electric bus is beyond the limit of electromagnetic compatibility standard. Radio disturbance characteristics of main electromagnetic interference source are detailedly analyzed. Electric field and magnetic field radiation mechanism of full bus is researched carefully. Three-phase working current of drive motor, switch device jump of motor controller, and the working process of the switching device in DC-DC converter are intended to be the main factors of full bus radiation emission. Besides, some interference suppressed measures are implemented according to interference source characteristics. Standard comparison tests are made and indicate that the adopted suppression method can effectively decrease the electromagnetic radiation emission levels. Lastly, the suppression method in this paper can serve as guidance for other hybrid electric bus when improving the electromagnetic compatibility.

Key words： Hybrid electric vehicle electromagnetic interference low-frequency electromagnetic radiation mechanism production suppression method

收稿日期: 2012-12-14 出版日期: 2014-06-16

PACS:	U469.72
	O441.4
	TN713

基金资助:国家自然科学基金（51177183）,重庆市科委重点科技攻关项目（CSTC,2009AB6039）和国家质检总局科研计划（2012QK376）资助项目

作者简介: 汪泉弟女,1954年生,教授,博士生导师,主要研究方向为电磁场理论及应用、电磁兼容技术等。刘青松男,1975年生,博士研究生,主要研究方向为电磁场理论及应用、汽车电磁兼容技术。

引用本文:

汪泉弟, 刘青松, 安宗裕, 丁良旭. 混合动力客车低频电磁辐射机理及抑制方法[J]. 电工技术学报, 2014, 29(1): 202-207. Wang Quandi, Liu Qingsong, An Zongyu, Ding Liangxu. Electromagnetic Radiation Mechanism and Noise Suppression Method for Hybrid Electric Bus. Transactions of China Electrotechnical Society, 2014, 29(1): 202-207.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2014/V29/I1/202

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