Control Scheme of Spread Frequency Band for High Power Impedance Measuring Converter with Chirp Signal Injection

Wenli Yang; Junpeng Ma; Ruiting Sun; Shunliang Wang; Tianqi Liu

doi:10.17775/CSEEJPES.2020.05950

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Control Scheme of Spread Frequency Band for High Power Impedance Measuring Converter with Chirp Signal Injection

Regular Papers | 更新时间：2026-10-15

- Control Scheme of Spread Frequency Band for High Power Impedance Measuring Converter with Chirp Signal Injection
- Control Scheme of Spread Frequency Band for High Power Impedance Measuring Converter with Chirp Signal Injection
- 中国电机工程学会电力与能源系统学报(英文) 2024年10卷第6期页码：2411-2422
- 作者机构：
  
  College of Electrical Engineering, Sichuan University,Chengdu,China
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2020.05950
  中图分类号：
- 纸质出版：2024-11-01
- 稿件说明：
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Wenli Yang, Junpeng Ma, Ruiting Sun, 等. Control Scheme of Spread Frequency Band for High Power Impedance Measuring Converter with Chirp Signal Injection[J]. 中国电机工程学会电力与能源系统学报(英文), 2024,10(6):2411-2422.

Wenli Yang, Junpeng Ma, Ruiting Sun, et al. Control Scheme of Spread Frequency Band for High Power Impedance Measuring Converter with Chirp Signal Injection[J]. CSEE Journal of Power and Energy Systems, 2024, 10(6): 2411-2422.
Wenli Yang, Junpeng Ma, Ruiting Sun, 等. Control Scheme of Spread Frequency Band for High Power Impedance Measuring Converter with Chirp Signal Injection[J]. 中国电机工程学会电力与能源系统学报(英文), 2024,10(6):2411-2422. DOI： 10.17775/CSEEJPES.2020.05950.

Wenli Yang, Junpeng Ma, Ruiting Sun, et al. Control Scheme of Spread Frequency Band for High Power Impedance Measuring Converter with Chirp Signal Injection[J]. CSEE Journal of Power and Energy Systems, 2024, 10(6): 2411-2422. DOI： 10.17775/CSEEJPES.2020.05950.

摘要

Abstract

Impedance measurement is an effective solution for evaluating stability of a power system with high penetration of renewable sources. In this paper

the impedance measurement is achieved by a typical high-power impedance measuring converter (HPIM-converter) with chirp signal injection. The modulation saturation phenomenon of the HPIM-converter is revealed

and the frequency sweep boundary is analyzed in detail. To expand the rated frequency range of the HPIM-converter

a spread frequency band control scheme based on an over-modulation technique is proposed in this paper. The proposed control method enlarges the rated frequency band and can inject a disturbance voltage into the system under test with consistent amplitude in the rated frequency band. Also

a smooth transition strategy between linear modulation mode and over-modulation mode is proposed for suppressing signal fluctuation. Finally

the effectiveness of the proposed method is verified by simulation tests.

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