| 引用本文: | 金立军,王泽泽,郭裕,李水清,方临川.基于操作功最优的永磁机构参数控制优化[J].电力自动化设备,2017,37(10): |
| JIN Lijun,WANG Zeze,GUO Yu,LI Shuiqing,FANG Linchuan.Parameter optimization of permanent magnetic actuator based on optimal operating energy[J].Electric Power Automation Equipment,2017,37(10): |
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| 摘要: |
| 以永磁机构分、合闸操作功与真空断路器开断性能要求匹配最优为目标，基于四连杆传动规律将12 kV真空断路器本体及传动机构的反力特性归算至永磁机构的运动部件动铁芯上，构建永磁机构操动特性数学模型。利用ANSYS-Maxwell仿真得到配永磁机构真空断路器的动铁芯位移、线圈电流、电容电压变化曲线等操动特性，计算出机构平均合闸速度、操作功等参数。以真空断路器操作功最优为目标函数，以线圈匝数、线径、操动电流为约束条件，在仿真的基础上建立正交回归实验，利用遗传算法对线圈参数进行优化设计，并通过实验进行验证。结果表明，在保证永磁机构操动特性满足真空断路器动作特性需求条件下，线圈优化设计后的永磁机构操作功从970.41 J降低到362.26 J，降低了动铁芯碰撞速度，提高了机构的稳定性。 |
| 关键词: 永磁机构 断路器 操作功最优 动态仿真 参数优化 |
| DOI：10.16081/j.issn.1006-6047.2017.10.018 |
| 分类号:TM561 |
| 基金项目:国家自然科学基金资助项目(51577135) |
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| Parameter optimization of permanent magnetic actuator based on optimal operating energy |
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JIN Lijun1, WANG Zeze1, GUO Yu1, LI Shuiqing2, FANG Linchuan2
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1.Department of Electrical Engineering, Tongji University, Shanghai 201804, China;2.CHIINT Electric Co.,Ltd.,Shanghai 201620, China
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| Abstract: |
| To satisfy the closing operation of vacuum circuit breaker and power performance requirements, the reaction characteristics of 12 kV vacuum circuit breaker body and transmission mechanism are converted to the moving core based on four-link transmission rule, and the mathematical model of the operating characteristic of permanent magnetic actuator is established. The core’s displacement, the coil current and the capacitance voltage are obtained through the ANSYS-Maxwell simulation to calculate the average closing speed, the operating power and other parameters. Taking the optimal operating power of vacuum circuit breaker as objective function and the number of coil turns, the wire diameter and the operating current as the constraints, the orthogonal regression experiment is established based on simulations. The coil parameters are optimal designed by genetic algorithm. Experimental results show that the operating characteristics of permanent magnetic actuator meet the demand characteristics of vacuum circuit breaker, the operating power of permanent magnetic actuator is reduced from 970.41 J to 362.26 J with the optimal design, the impact velocity of the moving iron core is reduced, and the stability of the permanent magnetic actuator is improved. |
| Key words: permanent magnetic actuator electric current breakers optimal operating power dynamic simulation parameter optimization |
