A high speed actuator for 1.14kV rated vacuum switch

Zheng, Zhanfeng; Dong, Erbao; Zou, Jiyan; Zhang, Zhenwei; Tian, Peng; Chen, Xuanshu

doi:10.1109/icepe-st.2011.6122906

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…The actuator studied in this paper consists of a multi-turn flat spiral coil ( Figure 2), situated directly under a mushroom-shaped conductive armature ( Figure 3). Examples of similar actuation topologies applied to breakers can be found in [16][17][18]. Discharging a capacitor bank comprising several series and parallel connected capacitors through the drive coil results in a large current surge that, in turn, generates a substantial magnetic field.…”

Section: Mechanical Challenges Of An Hvdc Breakermentioning

confidence: 99%

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Hybrid Multi-Physics Modeling of an Ultra-Fast Electro-Mechanical Actuator

et al. 2015

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The challenges of an HVDC breaker are to generate impulsive forces in the order of hundreds of kilonewtons within fractions of a millisecond, to withstand the arising internal mechanical stresses and to transmit these forces via an electrically-insulating device to the contact system with minimum time delay. In this work, several models were developed with different levels of complexity, computation time and accuracy. Experiments were done with two mushroom-shaped armatures to validate the developed simulation models. It was concluded that although the electromagnetic force generation mechanism is highly sensitive to the mechanical response of the system, the developed first order hybrid model is able to predict the performance of the breaker with good accuracy.

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Section: Mechanical Challenges Of An Hvdc Breakermentioning

confidence: 99%

“…Thus, a lumped mass representing the masses of the pull rod and the copper contacts is attached directly to the bottom of the stem of the armature. Equations (17) to (24) are used to model the response of the armature only.…”

Section: Model 3: Pull Rod Assumed Infinitely Stiffmentioning

confidence: 99%

Hybrid Multi-Physics Modeling of an Ultra-Fast Electro-Mechanical Actuator

et al. 2015

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A Novel Buffering Method for Permanent Magnet Electromagnetic Repulsion Mechanism

Zhang

Wang

Wen

2019

2019 6th International Conference on Electrical and Electronics Engineering (ICEEE)

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A Review on Thomson Coil Actuators in Fast Mechanical Switching

et al. 2022

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With the rapid development of DC power systems and the increasing demand for DC circuit breakers, electromagnetic repulsive drives-based Thomson coil actuators (TCA) are widely investigated to provide the high-speed actuating required for ultra-fast mechanical switches, especially those used in hybrid DC circuit breakers. The actuating mechanism is required to be fast, reliable, and economic. This article summarizes the development of Thomson coil actuators in circuit breakers in recent years, further illustrating the basic principles and the actuator topology. In addition, it discusses the various structural components of TCA and describes the utilized modeling and simulation methods. The main objective was to provide a comprehensive overview of the TCA field.

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A high speed actuator for 1.14kV rated vacuum switch

Cited by 3 publications

References 3 publications

Hybrid Multi-Physics Modeling of an Ultra-Fast Electro-Mechanical Actuator

Hybrid Multi-Physics Modeling of an Ultra-Fast Electro-Mechanical Actuator

A Novel Buffering Method for Permanent Magnet Electromagnetic Repulsion Mechanism

A Review on Thomson Coil Actuators in Fast Mechanical Switching

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