摘要详情

ID / 提交时间

631 / 2017-05-15 20:46:18

标题

Study on the Motion Characteristics of the Electromagnetic Repulsing Mechanism in MVDC Circuit Breaker

关键字

15098,13420,4816,13069

主题及专题

会场 > DC Switching Technologies

状态

终稿

作者

Yuxuan Liu / 2017/5/15 21:08:19 State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, China

Yi Wu / State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, China

Fei Yang / State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, China

Juwen Ding / State Key Lab of Electrical Insulation and Power Equipment, Xi’an Jiaotong University

Sumin Pang / Pinggao Group Co.,LTD.

Mingfei Wang / Pinggao Group Co.,LTD.

Die Wang / Pinggao Group Co.,LTD.

摘要

With its high performance in reaction and opening velocity, the electromagnetic repulsive mechanism has been widely applied in fast disconnectors of MVDC circuit breaker. To analyze the motion characteristics of a repulsive mechanism, a finite element field-circuit coupled dynamic model was established in this study. By fitting with the test results, the buffer coefficient was obtained and the oil buffer equation was then determined. Subsequently, the buffering processes under different initial velocities were simulated and analyzed. Thus, using repulsive force and buffer coefficients, the dynamic characteristics of the whole mechanism opening process were simulated. The design efficiency and the simulation accuracy were proved by the prototype test. This study may provide a reference to the high-speed switch design and optimization.