| 引用本文: | 杨东文,曾次玲,谷丰强,曾未伟,钟国潮.配永磁机构真空断路器操动时间分散性的预测模型与影响因素研究[J].电力系统保护与控制,2023,51(5):180-187.[点击复制] |
| YANG Dongwen,ZENG Ciling,GU Fengqiang,ZENG Weiwei,ZHONG Guochao.Influencing factor and forecasting model for the time dispersion of the operating mechanismof a vacuum circuit breaker with permanent magnetic actuator[J].Power System Protection and Control,2023,51(5):180-187[点击复制] |
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| 摘要: |
| 针对现有模型存在的难以实现多场充分耦合的问题，提出了一种对配永磁机构真空断路器动作时间进行预测的新模型。该模型考虑励磁变化和运动部件速度效应带来的涡流影响，实现了永磁操动机构的复杂机械运动、电子瞬态电路与瞬态磁场的多场耦合分析。基于该模型，对某型号配永磁机构真空断路器的动作时间进行了预测，实验证明所提方法是正确的。在此基础上，利用模型分析了励磁电压、环境温度、铁心材料和励磁方式等因素对永磁操作机构动作时间分散性的影响，并研究了各因素对动作时间分散性的影响机理。 |
| 关键词: 永磁机构 真空断路器 动作时间 分散性 数学模型 |
| DOI：10.19783/j.cnki.pspc.220757 |
| 投稿时间：2022-05-19修订日期：2022-08-22 |
| 基金项目:国家自然科学基金项目资助(51777005)；中央基本科研业务经费项目资助(YWF-21-BJ-J-516) |
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| Influencing factor and forecasting model for the time dispersion of the operating mechanismof a vacuum circuit breaker with permanent magnetic actuator |
| YANG Dongwen1,ZENG Ciling2,GU Fengqiang3,ZENG Weiwei3,ZHONG Guochao4 |
| (1. State Grid Hunan Electric Power Co., Ltd. Loudi Power Supply Branch, Loudi 417000, China; 2. State Grid Hunan Electric
Power Co., Ltd.?Electric Power Dispatch and Control Center, Changsha 410004, China; 3. Beijing Kedong
Electric Power Control System Co., Ltd., Beijing 100192, China; 4. School of Automation Science
and Electrical Engineering, Beihang University, Beijing 100191, China) |
| Abstract: |
| Given the inadequacy of insufficient coupling of the all the fields in the existing simulation models, a new model, one which can forecast the operating time of the vacuum circuit breaker with permanent magnetic actuator, is proposed. The model considers the influence of the eddy current. This itself is mainly affected by the excitation variations and the velocity effect of the movable parts. Different from existing models, the new model obtains the coupling solution of the complex mechanical movement, the electronic transient circuit and the transit magnetic field with eddy current influence involved. The paper forecasts the operating time of a vacuum circuit with permanent magnetic actuator. The experiment shows the accuracy of the model. Then, this paper analyzes the influence factors, such as the excitation voltage, the environmental temperature, the iron material and the excitation mode, for the time dispersion of the breaker. The results also reveal the influencing mechanisms of the factors on the time dispersion of the breaker.
This work is supported by the National Natural Science Foundation of China (No. 51777005). |
| Key words: permanent magnetic actuator vacuum circuit breaker operating time time dispersion mathematical model |
