| 引用本文: | 武瑾,庄劲武,袁志方.基于电磁耦合双线圈模型电磁斥力机构结构参数的优化分析[J].电力自动化设备,2019,39(6): |
| WU Jin,ZHUANG Jinwu,YUAN Zhifang.Optimization analysis of structural parameters of ERM based on electromagnetic coupling double-coils model[J].Electric Power Automation Equipment,2019,39(6): |
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| 摘要: |
| 针对现有电磁斥力机构等效计算方法无法有效应用的问题，提出了一种电磁耦合双线圈模型的等效计算方法。等效模型主要包括驱动回路与感应回路两部分，在基本电路方程之外，引入了电磁斥力与机械运动的计算。通过合理的简化，对等效模型中集肤深度、线圈电阻、线圈自感、线圈互感等参数进行辨识。在此基础上，以某型1000 V/400 A电磁斥力机构样机为算例，采用时域迭代的离散算法较为系统地分析了两线圈内径、径向厚度以及斥力线圈匝数、轴向厚度等对机构效率和动子行程的影响规律。所得到的规律性认识可有效指导电磁斥力机构的优化设计。 |
| 关键词: 断路器 电磁斥力机构 电磁耦合双线圈模型 机构效率 动子行程 数学模型 |
| DOI：10.16081/j.issn.1006-6047.2019.06.029 |
| 分类号:TM56 |
| 基金项目:中国博士后科学基金第10批特别资助项目(2017T100798)；中国博士后科学基金第60批面上资助项目(2016M603009) |
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| Optimization analysis of structural parameters of ERM based on electromagnetic coupling double-coils model |
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WU Jin, ZHUANG Jinwu, YUAN Zhifang
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Department of Electrical Engineering, Naval University of Engineering, Wuhan 430033, China
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| Abstract: |
| Aiming at the problem that the existing equivalent calculation methods of ERM(Electromagnetic Repulsion Mechanism) cannot be applied effectively, an equivalent calculation method based on electromagnetic coupling double-coil model is proposed. The equivalent model mainly includes two parts, driving circuit and induction circuit. In addition to the basic circuit equations, the calculation of electromagnetic repulsion and mechanical motion is introduced. Through reasonable simplification, the skin depth, coil resistance, coil self-inductance and mutual inductance in the equivalent model are identified. On this basis, taking a prototype of a 1000 V/400 A ERM as an example, the influence of inner diameter, radial thickness, turns of repulsion coil and axial thickness of the two coils on the mechanism efficiency and active cell travel are systematically analyzed by using the discrete algorithm of time-domain iteration. The obtained regularity knowledge can effectively guide the optimal design of ERM. |
| Key words: circuit breaker electromagnetic repulsion mechanism electromagnetic coupling double-coil model mechanism efficiency active cell travel mathematical model |
