Simulation and optimization of dynamic characteristics of intelligent AC contactor

Zhang, Guogang; Chen, Wei; Chunjun, KE; Zheng, Peng; Geng, Yingsan

doi:10.3233/jae-2010-1117

Cited by 6 publications

(3 citation statements)

References 11 publications

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“…The field distribution cannot be analyzed and the effect of the selection phase angle hasn't been considered. In order to calculate the field distribution in the magnetic path, different ways have been developed in [9][10][11]. The nonlinearity is considered in [9] by developing the constitutive law of the magnetic core in the weak form.…”

Section: Introductionmentioning

confidence: 99%

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Research of selection phase angle and dynamic control for closing process of intelligent AC contactors

Peng

Shu

et al. 2014

International Journal of Applied Electromagnetics and Mechanics

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The closing process of intelligent AC contactor can be affected by selection phase angle and the dynamic control strategy. A control strategy is proposed to compensate the influence of closing process at different phase angles. The mathematical model of the closing process is established by analyzing the dynamic characteristics of the contactor. Simulation and experimental comparisons show that the proposed model can predict the dynamic response of the closing process effectively. The relationship between the closing phase angle and the end speed is analyzed by using the experimental measurements. The selection phase angle and dynamic control is implemented by combining voltage zero crossing and PWM section control technology. The input voltage and the zero-crossing signal are taken as the control input while the PWM duty cycles and the strong excitation time are taken as the control output. The control strategy is implemented by using the lookup table. Experimental results show that by using the proposed strategy, the contactors can be closed with the same phase angle. Therefore the consistency of the dynamic closing process of the intelligent contactors can be guaranteed. Also, the movable armature end speed of the closing is reduced 31.5% and the closing time is decreased 15.6%. The mechanical life of the contactor has been increased about 4 times in the durability test.

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Section: Introductionmentioning

confidence: 99%

“…The nonlinear distribution of the magnetic field and the magnetic force are calculated by the numerical interpolation. In [11], a simulation model of intelligent ac contactor is developed by using the ADAMS software. The field distribution is calculated with FEM.…”

Section: Introductionmentioning

confidence: 99%

Research of selection phase angle and dynamic control for closing process of intelligent AC contactors

Peng

Shu

et al. 2014

International Journal of Applied Electromagnetics and Mechanics

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show abstract

“…Additionally, energy loss cannot be analyzed and the nonlinear distribution of magnetic field cannot be solved neither. Finite element method (FEM) is employed by other researchers to investigate the electromagnetic responses of the contactors [6][7][8][9]. The magnetic field is analyzed in [6] with 2D finite element method.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear magnetic field analysis for 3D electromagnetic contactors

Shu

Zhu

et al. 2013

International Journal of Applied Electromagnetics and Mechanics

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A new approach considering the nonlinearity of the electric core is proposed to analyze the magnetic field and magnetic force of 3D electromagnetic contactors. The nonlinear constitutive law is established by measuring the B-H curve of the core experimentally. Finite element method is used to model the electromagnetic responses of the system, in which the 3D Ampère's circuital law is implemented in PDE weak form. In order to analyze the nonlinear responses of the magnetic field and magnetic force, the measured constitutive law is incorporated with the weak form equation by numerical interpolation. Both the static and transient responses of the electromagnetic system are studied by solving the coupled weak form equations step by step. Experimental results show that the proposed model has good predictions of the magnetic force. The saturation due to the nonlinearity of the B-H curve can be described as well. This modeling framework offers an advantage to solve the nonlinear responses of 3D electromagnetic systems without theoretical modeling the complex constitutive law of the electric core.

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The Dynamic Characteristics of AC Contactor Are Studied Based on Finite Element Simulation

Guo

2022

Integrated Ferroelectrics

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Simulation and optimization of dynamic characteristics of intelligent AC contactor

Cited by 6 publications

References 11 publications

Research of selection phase angle and dynamic control for closing process of intelligent AC contactors

Research of selection phase angle and dynamic control for closing process of intelligent AC contactors

Nonlinear magnetic field analysis for 3D electromagnetic contactors

The Dynamic Characteristics of AC Contactor Are Studied Based on Finite Element Simulation

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