Optimal Design Based on Lagrange Multiplier Approach for Parasitic Capacitance of High Frequency High Voltage Transformers

被引：0
作者：
Xu Y. [1 ]
Chen L. [1 ]
Chen Y. [1 ]
Xu B. [1 ]
Ding H. [1 ]
机构：
[1] Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, 430074, Hubei Province
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2017年 / 37卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Finite element analysis; High frequency high voltage transformer; Lagrange multiplier approach; Loss; Parasitic capacitance;
D O I：
10.13334/j.0258-8013.pcsee.152473
中图分类号：
学科分类号：
摘要：
High frequency high voltage (HFHV) transformers are widely used in applications such as capacitor charging power systems (CCPS), pulsed high magnetic field systems and electrostatic dust collectors etc. In order to minimize the value of the parasitic capacitance as well as the total power loss of the transformer, an innovative optimum design method of HFHV transformers based on Lagrange multiplier approach was presented. A 15 kHz, 30kV·A transformer prototype was designed with 500V input voltage and 10kV output voltage. The simulation and experiment were given to prove the performance of the transformer prototype. The value of capacitance and loss which meet the loss constraints and insulation requirements are the same to theoretic calculation results. The results verify the accuracy of the Lagrange model established in the paper. In addition, compared with the traditional transformer, the optimized transformer has faster charging speed and better linearity in the charging experiments. The experimental results verify the validity and feasibility of the optimization method. © 2017 Chin. Soc. for Elec. Eng.
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收藏
页码：939 / 945
页数：6
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