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Analysis of Influence of Dead Zone of Regulating System on Dynamic Performance of Primary Frequency Modulation
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Jia-da WEI1, 2, Xun-xin ZHAO1, 2, Fan MO1, 2, Yuan-chu CHENG3, Rui-lin YANG1, 2
Water Resources and Power | 2023, 41(10) : 190 - 194
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Water Resources and Power | 2023, 41(10): 190-194
• ELECTROMECHANICS AND CONTROL ENGINEERING •
Analysis of Influence of Dead Zone of Regulating System on Dynamic Performance of Primary Frequency Modulation
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Jia-da WEI1, 2, Xun-xin ZHAO1, 2, Fan MO1, 2, Yuan-chu CHENG3, Rui-lin YANG1, 2
Affiliations
  • 1.Hydropower Industry Innovation Center of State Power Investment Corporation Limited, Changsha 410000, China
  • 2.Hunan Wuling Power Technology Co., Ltd., Changsha 410000, China
  • 3.School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China
Published: 2023-10-25 doi: 10.20040/j.cnki.1000-7709.2023.20222513
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The primary frequency modulation function of the hydropower unit plays an increasingly important role in maintaining the safe and stable operation of the power grid, and it is necessary to ensure that the units integrated into the power grid have good primary frequency modulation performance. The influence of various dead zone nonlinear factors in the hydraulic turbine adjustment system on the dynamic performance of primary frequency modulation cannot be ignored. The nonlinearity of the dead zone in all links of the adjustment system is comprehensively analyzed. Based on the established high-precision primary frequency modulation model of hydropower units, the influence of frequency dead zone, openness dead zone, power dead zone and dead zone of the follow-up system on the performance of the primary frequency modulation response performance of large and small frequency difference is explored, and it is emphasized that the next frequency modulation inaction of small disturbances may be related to the dead zone of the follow-up system, which provides important theoretical guidance for the improvement and optimization of the primary frequency modulation function of the hydropower unit.

hydraulic turbine governing system  /  primary frequency regulation  /  dead zone  /  mathematical model  /  dynamic performance
Jia-da WEI, Xun-xin ZHAO, Fan MO, Yuan-chu CHENG, Rui-lin YANG. Analysis of Influence of Dead Zone of Regulating System on Dynamic Performance of Primary Frequency Modulation[J]. Water Resources and Power, 2023 , 41 (10) : 190 -194 . DOI: 10.20040/j.cnki.1000-7709.2023.20222513
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20222513
  • Receive Date：2022-11-30
  • Online Date：2026-01-28
  • Published：2023-10-25
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History
  • Received：2022-11-30
  • Revised：2023-01-03
Funding
Affiliations
    1.Hydropower Industry Innovation Center of State Power Investment Corporation Limited, Changsha 410000, China
    2.Hunan Wuling Power Technology Co., Ltd., Changsha 410000, China
    3.School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China
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https://castjournals.cast.org.cn/joweb/sdnykx/EN/10.20040/j.cnki.1000-7709.2023.20222513
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表12种不同金属材料的力学参数
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Number of
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Number of
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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