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Low-Harmonic DC Ice-Melting Device Capable of Simultaneous Reactive Power Compensation

Author

Listed:
  • Jiazheng Lu

    (State Key Laboratory of Disaster Prevention and Reduction for Power Grid Transmission and Distribution Equipment, State Grid Hunan Electric Company Limited Disaster Prevention and Reduction Center, Changsha 410007, China)

  • Siguo Zhu

    (State Key Laboratory of Disaster Prevention and Reduction for Power Grid Transmission and Distribution Equipment, State Grid Hunan Electric Company Limited Disaster Prevention and Reduction Center, Changsha 410007, China)

  • Bo Li

    (State Key Laboratory of Disaster Prevention and Reduction for Power Grid Transmission and Distribution Equipment, State Grid Hunan Electric Company Limited Disaster Prevention and Reduction Center, Changsha 410007, China)

  • Yanjun Tan

    (State Key Laboratory of Disaster Prevention and Reduction for Power Grid Transmission and Distribution Equipment, State Grid Hunan Electric Company Limited Disaster Prevention and Reduction Center, Changsha 410007, China)

  • Xiudong Zhou

    (State Key Laboratory of Disaster Prevention and Reduction for Power Grid Transmission and Distribution Equipment, State Grid Hunan Electric Company Limited Disaster Prevention and Reduction Center, Changsha 410007, China)

  • Qinjun Huang

    (State Key Laboratory of Disaster Prevention and Reduction for Power Grid Transmission and Distribution Equipment, State Grid Hunan Electric Company Limited Disaster Prevention and Reduction Center, Changsha 410007, China)

  • Yuan Zhu

    (State Key Laboratory of Disaster Prevention and Reduction for Power Grid Transmission and Distribution Equipment, State Grid Hunan Electric Company Limited Disaster Prevention and Reduction Center, Changsha 410007, China)

  • Xinguo Mao

    (State Key Laboratory of Disaster Prevention and Reduction for Power Grid Transmission and Distribution Equipment, State Grid Hunan Electric Company Limited Disaster Prevention and Reduction Center, Changsha 410007, China)

Abstract

As a result of the high efficiency of ice-melting and the small power supply capacity, DC ice-melting devices are widely used in relation to transmission lines in the power grid. However, it needs to consume reactive power when ice-melting, and voltage fluctuation of the substation may be caused when the demand for reactive power is large. It also generates a large number of 5th and 7th harmonics when ice-melting. In this paper, combined with the demand for ice-melting for transmission lines and the dynamic reactive power of substations, a low-harmonic DC ice-melting device capable of simultaneous reactive power compensation is studied. The function of ice-melting and reactive power compensation can be operated simultaneously and the rectifier’s main harmonics can be eliminated. The simulation and experimental research on the device was carried out in the 500 kV Chuanshan substation. The actual ice melting was carried out on the 500 kV Chuansu I line and took only 68 min to melt the ice. The 500 kV bus voltage had no negative deviation, and the positive deviation decreased from +3.09% to +1.57% within 24 h of testing. The results prove the feasibility of the proposed DC ice-melting device in this paper.

Suggested Citation

  • Jiazheng Lu & Siguo Zhu & Bo Li & Yanjun Tan & Xiudong Zhou & Qinjun Huang & Yuan Zhu & Xinguo Mao, 2018. "Low-Harmonic DC Ice-Melting Device Capable of Simultaneous Reactive Power Compensation," Energies, MDPI, vol. 11(10), pages 1-17, September.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:10:p:2596-:d:172760
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    References listed on IDEAS

    as
    1. Jiazheng Lu & Pengkang Xie & Zhen Fang & Jianping Hu, 2018. "Electro-Thermal Modeling of Metal-Oxide Arrester under Power Frequency Applied Voltages," Energies, MDPI, vol. 11(6), pages 1-13, June.
    2. Nurul A. A. Latiff & Hazlee A. Illias & Ab H. A. Bakar & Sameh Z. A. Dabbak, 2018. "Measurement and Modelling of Leakage Current Behaviour in ZnO Surge Arresters under Various Applied Voltage Amplitudes and Pollution Conditions," Energies, MDPI, vol. 11(4), pages 1-16, April.
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