A DC Vacuum Circuit Breaker Based on Electromagnetic Repulsion Actuator

作者：Dong Wenliang^*; Guo Xingyu; Liang Deshi; Zou Jiyan

来源：Transactions of China Electrotechnical Society, 2018, 33(5): 1068-1075.

DOI：10.19595/j.cnki.1000-6753.tces.170092

• Commutation circuit
• Dc power systems
• DC vacuum circuit breakers
• Dynamic characteristics
• High voltage DC
• High voltage DC (HVDC)
• HVDC circuit breakers
• Research and development

Using the mechanical high voltage DC (HVDC) circuit breakers based on commutation technology is one way to control and protect 110 kV or more DC lines, its research and development to the development of DC power system is of great significance. In this paper, a mechanical 60 kV DC vacuum circuit breaker (VCB) module based on commutation technology is proposed, it is composed of main switch, commutation switch and commutation circuit. The main switch and commutation switch adopt double breaks in series that controlled independently by 4 electromagnetic repulsion actuators. According to each actuator parameters, the drive force between the repulsion coils is simulated by ANSOFT software, and the dynamic characteristics of all switches are measured under different drive circuits. At last, the most suitable drive circuits are ensured to meet the condition that the DC vacuum circuit breaker can open the 60 kV/16 kA fault current successful within 4ms, and it can be used as the basic module of 110 kV HVDC circuit breaker.

• 出版日期2018