摘要
永磁操动机构励磁回路是影响其合闸特性的关键结构。为此对其工作原理和经典数学模型进行分析,针对经典模型中涉及的励磁回路主要变量,基于二次回归正交试验建立数学模型,研究回路中储能电容容量、初始电压及励磁线圈匝数等参数对机构合闸特性的影响,并在此基础上定义了励磁回路综合评价系数,利用该系数对机构进行优化设计。优化结果显示:优化后机构平均合闸速度提升的同时大大降低了储能电容容量,综合优化率达到61%,使得励磁回路参数配置合理化,机构执行能力高效化。真空断路器永磁操动机构励磁回路的优化设计通过了仿真试验验证,为机构开发及结构优化提供了技术支持。
The excitation circuit of permanent magnetic actuator is the key structure affecting the switching characteristics. From the analysis of its working principle and the classical mathematic model, we focused our research contents on the main variables of the excitation circuit involved in the classical model. Then, using the method of quadratic regression orthogonal design, we built and optimized model for excitation circuit of permanent magnetic actuator. Also we defined comprehensive coefficient for the excitation circuit optimization design and evaluation. The optimization results show that, as average closing speed increases, the capacitance of storage batteries can be reduced by 55%. The rate of optimization is 61%, which makes the circuit more efficient. The design parameters of the excitation circuit are tested and verified by experiment finally, which provides technical support for the development and structure optimization of the system.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2016年第6期1724-1730,共7页
High Voltage Engineering
关键词
真空断路器
永磁操动机构
励磁回路
评价系数
回归试验
vacuum breaker
permanent magnetic actuator
excitation circuit
comprehensive coefficient
regression test
