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失谐系数对空心螺旋线型特斯拉变压器谐振性能的影响研究

DOI: 10.13334/j.0258-8013.pcsee.2014.S.031, PP. 211-217

Keywords: 特斯拉变压器,失谐系数,次级电压,能量传递效率

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Abstract:

空心特斯拉变压器依靠双谐振回路来耦合,其失谐系数是影响变压器谐振性能的重要因素。对空心特斯拉变压器的谐振过程进行了数学分析,得出次级电压和初级电流的振幅在不同失谐系数下的变化规律。研制了匝数比为3:1200的螺旋线型空心特斯拉变压器样机,分别利用改进初、次级电容进行调谐的方法对样机的次级电压、初级电流和能量传递效率进行了实验观测。通过实验与理论分析对比,提出了根据输出电压和能量传递效率来调整空心特斯拉变压器失谐系数的方法,论证了适当增大失谐系数来避免初级回路半导体开关过早关断的有效性。

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