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1087 / 2020-09-29 17:52:02
Online Multi-cascade DC Converter Impedance Measurement Method Based on Multi-sine Signal Injection
impedance measurement, multi-cascaded system, multiple disturbance sources, multi-sine signal
Power System and new energy >
终稿
Meng Li / Zhejiang University
Abstract—Impedance characteristics of DC converters in multi-cascaded system are important parameters for the stability analysis of multi-cascaded system. Since the impedance characteristics usually vary over time with operation conditions, therefore, online impedance measurement of multi-cascaded DC converter is required for the adaptively adjustment for the stability of multi-cascaded system. However single disturbance source is adopted in existing methods for online impedance measurement, which requires multiple disturbance signal injection while obtaining the impedance characteristics of multi-cascaded DC converters. In order to realize the rapid online measurement of DC converters, a multiple disturbance sources online measurement method based on multi-sine signal injection is proposed. The design method of frequency, amplitude and phases of each component in multi-sine signal is proposed in order to obtain accuracy measurement results. At last, simulation is conducted to verify the effectiveness of proposed method.

 
重要日期

  • 会议日期

    11月02日

    2020

    至

    11月04日

    2020

  • 10月27日 2020

    初稿截稿日期

  • 11月03日 2020

    报告提交截止日期

  • 11月04日 2020

    注册截止日期

  • 11月17日 2020

    终稿截稿日期

主办单位
IEEE IAS Student Chapter of Huazhong University of Science and Technology (HUST)
承办单位
Huazhong University of Science and Technology
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