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A High-Voltage “Sen” Transformer: Configuration, Principles, and Applications

Author

Listed:
  • Baichao Chen

    (School of Electrical Engineering, Wuhan University, No. 299, Bayi Street, Wuchang District, Wuhan 430072, China)

  • Wenli Fei

    (School of Electrical Engineering, Wuhan University, No. 299, Bayi Street, Wuchang District, Wuhan 430072, China)

  • Cuihua Tian

    (School of Electrical Engineering, Wuhan University, No. 299, Bayi Street, Wuchang District, Wuhan 430072, China)

  • Lingang Yang

    (New Energy Engineering Institute, Huadong Engineering Corporation Limited, No. 201, Gaojiao Road, Hangzhou 311122, China)

  • Jianwei Gu

    (Operation Maintenance Department, Huaneng Jiangsu Clean Energy Branch, No. 239, Zhongshan Road, Nanjing 210008, China)

Abstract

As is well known, the high installation and operational costs of the unified power flow controller (UPFC) restrict its widespread applications in power grid. An economical “Sen” transformer (ST) that is composed of a three-phase four-winding transformer and three sets of tap changers provides similar power flow control functionality as the UPFC. Unfortunately, the ST is not suitable for high-voltage systems because of its high-voltage insulation requirement on all secondary windings and tap changers. To overcome this problem, a high-voltage “Sen” transformer that consists of a three-phase two-winding transformer and two sets of tap changers is proposed in this paper. In high-voltage power system applications, the high-voltage “Sen” transformer (HVST) offers several advantages over the ST, such as fewer windings, fewer tap changers, bigger phase-shift range, and larger power flow control region. This paper focuses on the configuration, principles, and applications of the HVST. The contrastive simulation results in a two-area test system and an IEEE 39 bus system prove the validity and advantages of the proposed HVST. Moreover, a 10 kV HVST device and a corresponding experiment platform are developed to verify the feasibility and effectiveness of the HVST. The HVST can provide a flexible voltage and power flow control.

Suggested Citation

  • Baichao Chen & Wenli Fei & Cuihua Tian & Lingang Yang & Jianwei Gu, 2018. "A High-Voltage “Sen” Transformer: Configuration, Principles, and Applications," Energies, MDPI, vol. 11(4), pages 1-18, April.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:4:p:918-:d:140899
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    References listed on IDEAS

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    1. Muhammad Zahid & Jinfu Chen & Yinhong Li & Xianzhong Duan & Qi Lei & Wang Bo & Ghulam Mohy-ud-din & Asad Waqar, 2017. "New Approach for Optimal Location and Parameters Setting of UPFC for Enhancing Power Systems Stability under Contingency Analysis," Energies, MDPI, vol. 10(11), pages 1-23, October.
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    Cited by:

    1. Jerzy Szczepanik & Tomasz Sieńko, 2021. "Intuitive Multiphase Matrix Converter Control Procedures Applied to Power-System Phase Shifters," Energies, MDPI, vol. 14(15), pages 1-18, July.

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