摘要
永磁操动机构是新一代真空断路器的操作系统,是由机械操动向电子操动转变的关键。首先,通过分析典型永磁操动系统等效电路,在一定的冗余下优化励磁电流波形,使所需的脉冲功率最小;然后对永磁操动机构的使用可靠性问题,即能源部分的失效问题、控制部分的电磁兼容问题和磁系统的磁性能劣化问题进行了讨论。
The permanent magnet actuator, as the new operation system of vacuum circuit breakers, is the key to the transformation from mechanical actuation to electronic actuation. In this paper, the equivalent circuit of typical permanent magnet actuator is analyzed, and the excitation current wave is optimized under definite redundancy and demanded minimum impulse power. At the same time, its reliability is also discussed in terms of the failures of the energy system, the electromagnetic compatibility of the control system and the magnetic performance deterioration of the magnetic system.
出处
《广东电力》
2003年第6期9-10,14,共3页
Guangdong Electric Power
