高压直流断路器技术要点研究

Study on the Technical Points of High-Voltage DC Circuit Breakers

介绍了高压直流断路器的原理,分别从拓扑方案优化、高比能ZnO以及隔离供能等方面梳理高压直流短路器关键技术。从工程应用角度分析,通过拓扑结构全面优化,能够将隔离变压器的绝缘问题与效率矛盾问题解决,可切实延长机械开关的操作寿命,保证系统运行稳定。

The principle of high-voltage DC circuit breaker is introduced,and the key technologies of high-voltage DC short circuit breaker are sorted out in terms of topology scheme optimization,high specific energy ZnO and isolation supply,respectively.Analyzed from the perspective of engineering applications,the topology is comprehensively optimized to be able to solve the contradictory problems of insulation and efficiency of isolation transformers,which can effectively improve the operating life of mechanical switches and can ensure stable system operation.