新一代300 Mvar调相机失磁运行特性及保护研究
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TM772

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国家电网有限公司总部科技项目“含UPFC的多FA-CTS、调相机与直流输电系统相互影响及协调控制技术研究”


Loss-of-excitation operation of new generation 300 Mvar synchronous condenser and its relay protection
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    摘要:

    针对新一代300 Mvar调相机目前无实际的失磁运行数据支撑失磁保护的投退策略及定值整定,文中通过开展新一代调相机启动调试过程中失磁保护试验获得的关键数据,研究了失磁保护在调相机启动阶段及运行阶段失磁保护相应的定值调整及保护投退策略,详细阐述了新一代调相机启动调试工程中的失磁试验方法,并介绍了失磁试验过程中所需的实验条件。结合调相机额定进相运行工况、完全失磁运行工况下的实验,得到新一代调相机的最大进相深度及两种工况下的励磁电流、机端电压,并给出失磁保护励磁低电压定值建议整定值及启动阶段和运行阶段的失磁保护各段的投退策略,为今后投产的调相机提供参考。

    Abstract:

    In view of the problem that the new generation of 300 Mvar Synchronous Condenser has no actual data of loss of excitation operation to support loss of excitation protection's cast or cancel strategy and relay protection setting calculation at present.Through the development of loss-of-excitation protection test in the start-up and commissioning process of a new generation of 300 Mvar Synchronous Condenser.The key data obtained from the loss-of-excitation protection test during the start-up and debugging of a new generation of synchronous condenser are presented.The corresponding relay protection setting adjustment and protection cast or cancel strategy of loss-of-excitation protection in the starting and running stages of synchronous condenser are studied.The loss-of-excitation protection test method in the start-up and debugging project of a new generation of synchronous condenser is described in detail, and the experimental conditions required in the loss-of-excitation protection test process are introduced.Combined with the experiment of rated leading phase operation and complete loss of excitation operation, the maximum leading phase depth, excitation current and terminal voltage of the new generation of condenser are obtained.Through the analysis and research of the data, the recommended setting value of the excitation low voltage setting value of the loss of excitation protection and the on-off strategy of each section of the loss of excitation protection in the start-up stage and operation stage are obtained, which provides a reference for the future production of the condenser.

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刘春晖,钱文晓,杨朋威,张平,杜智超,陈更.新一代300 Mvar调相机失磁运行特性及保护研究[J].电力工程技术,2019,38(6):154-159

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  • 收稿日期:2019-06-26
  • 最后修改日期:2019-08-19
  • 录用日期:2019-10-21
  • 在线发布日期: 2019-11-28
  • 出版日期: 2019-11-28