Zhiyuan Liu
Xi'an Jiaotong University
369 Papers
775 Citations
Zhiyuan Liu is an academic researcher from Xi'an Jiaotong University. The author has contributed to research in topics: Vacuum arc & Circuit breaker. The author has an hindex of 17, co-authored 314 publications.
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Papers
Design Method of Electromagnetic Mechanism for Vacuum Contactors by Using Twice Orthogonal Analyses with Multi-Physical Simulation
Shaowei Liu,Liqiong Sun,Hui Ma,Yingsan Geng,Zhiyuan Liu,Jianhua Wang +5 more
- 01 Oct 2019
TL;DR: A miniaturized and low-power electromagnetic mechanism for the vacuum contactors had been developed based on both the simulation and the experiments and both opening and closing characteristic were designed.
Insulation performance of vacuum interrupter after high frequency voltage impulses conditioning
Weigang Feng,Zhiyuan Liu,Quan Wang,Peng Li +3 more
- 01 Oct 2015
Abstract: The conditioning is widely used to enhance the insulation performance of vacuum interrupter, such as current conditioning and spark conditioning In this paper, we compared the conditioning performance between traditional ones and high frequency voltage impulses conditioning method with their conditioning parameters, such as conditioning voltage, current and times Positive polarity lightning impulse voltage (12/50μs) was applied by an up-and-down method to test the conditioning insulation performance The experiment results showed that, after high frequency voltage impulses conditioning, insulation strength of vacuum interrupter increased by nearly 16% In addition, the melt layer on contact surface is well-distributed
Discharge Path Measurement of A Vacuum Interrupter with Fixed Break after Suffering High Inrush Current
Jiangang Ding,Zhiyuan Liu,Yingsan Geng,Jianhua Wang,Xiaofei Yao,Hui Ma,Jiali Chen,Guoqin Li,Xue Liu,Wen Shi,Xiaojun Wang,Kai liu +11 more
- 01 Oct 2019
TL;DR: In this paper, the authors measured the breakdown path of a vacuum interrupter with a fixed break and a fixed contact gap, and the fixed break was composed of a pair of fixed shields and in parallel with the movable contact gap.
Research on the Characteristic and Mechanism of Field Emission from Metal-Substrate Graphene Contact
Ziru Zha,Senkun Mei,Zhipeng Zhou,Zhenxing Wang,Zhiyuan Liu +4 more
- 11 Apr 2021
TL;DR: In this paper, a qualitative model was proposed to explain the step effect in the V-I curve of the emission process of graphene, which deviates from the traditional Fowler-Nordheim theory or Murphy-Good theory.
Analysis of Transient Dynamics of Fast Vacuum Circuit Breaker with Electromagnetic Repulsion Actuator
Chen Guan,Xiaofei Yao,Jun Zhang,Xiaoxue Chang,Jianhua Wang,Zhiyuan Liu,Yingsan Geng +6 more
- 16 Oct 2020
TL;DR: In this paper, a transient dynamics simulation (TDS) of FVCB was built, which can obtain the motion characteristics taking the effect of mechanical transmission, friction and connection into account.