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1308 / 2020-09-29 17:52:02
Effects of Frequency and Voltage Relays on Turbine-Generator Shaft Fatigue due to Islanding
fatigue, generator, islanding, shaft, turbine
Power System and Automation > Renewable and sustainable energy applications
终稿
Bombay Babi / University of Johannesburg
Pitshou Bokoro / University of Johannesburg
Frequency and voltage relays are used to protect networks against abnormal frequencies and voltages. They are also used to detect the islanding of distributed generators. To avoid unwanted tripping during normal operation, frequency and voltage relays use set points and time delays. However, when islanding occurs, set points and time delays effectively delay islanding termination. Simulation with PSCAD and an analytical method for the fatigue estimate of shafts were used to study the effets of set points and time delays on the fatigue life of turbine generator shafts. It was found that frequency set points, voltage set points, and time delays contribute to the loss of fatigue life incurred by turbine-generator shafts during islanding, and this constitutes a disadvantage for this method of islanding detection. Using islanding detection methods that do not rely on thresholds avoids the additional loss of shaft fatigue life caused by frequency and voltage relays.
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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