COMPEL - The international journal for computation and mathematics in electrical and electronic engineering: Volume 36 Issue 6

Guest editorial

Andrzej Demenko, Wojciech Pietrowski, Tianyu Dong

Parameter identification of wireless power transfer with a movable receiver

Quandi Wang, Yingcong Wang, Jianwei Kang, Wanlu Li

The purpose of this paper is to present a monitoring method for a three-coil wireless power transfer (WPT) system, which consists of a transmitting coil (Tx), a relay coil and a…

An investigation on frequency characteristics of wireless power transfer systems with relay resonators

Jiali Zhou, Bo Zhang, Dongyuan Qiu

This paper aims to analyze the frequency characteristics of wireless power transfer (WPT) systems with relay resonators in terms of the power delivered to the load and system…

Iron loss research of amorphous alloy motor by considering the influences of solidifying and annealing on stator core

Longfei Zhu, Wenming Tong, Xueyan Han, Jianguo Zhu

The specific iron losses of amorphous alloy material are extremely low compared with silicon steel material. The iron losses of motors may reduce by replacing the silicon steel…

A hybrid Krylov-subspace-exponential and finite-difference time integration approach for multiscale electromagnetic simulations

Jiawei Wang, Feng Chen, Jinghui Shao, Weichen Zhang, Xikui Ma

This paper aims to present a novel hybrid time integration approach for efficient numerical simulations of multiscale problems involving interactions of electromagnetic fields…

Numerical analysis of electromagnetic field in devices with the high-speed unit

Jinghui Shao, Zhen Kang, Jiawei Wang, Xikui Ma

The purposes of this paper are to numerically analyse the distribution of the electromagnetic field in the electromagnetic device wherein a high-speed unit exists and to develop a…

A numerical method for solving the physics-based model of IGBT with all free-carrier injection conditions in the base region

Jiajia Chen, Yuhan Ma, Shiyou Yang

The purpose of this paper is to provide an accurate model and method to simulate the transient performances of an insulated gate bipolar transistor (IGBT) in an arbitrary…

Simulation on motion characteristics of space charge in single oil-paper insulation

Zhifei Yang, Zhiye Du, Jiangjun Ruan, Shuo Jin, Guodong Huang, Qixiang Lian, Yifan Liao

The purpose of this paper is numerical calculation of total electric field in oil-paper insulation. Now, there is no effective method to consider the influence of space charges…

Inverse control of multi-dimensional Taylor network for permanent magnet synchronous motor

Chao Zhang, Hong-Sen Yan

The purpose of this paper is to propose a new control strategy based on adaptive inverse control aiming at high performance control of permanent magnet synchronous motor (PMSM).

Fast analytical calculation method for eddy current induced by gradient fields in an MRI system

Zheng Xu, Jiamin Wu, Lu Li, Yucheng He, Wei He, Dengjie Yu

Eddy currents are inevitable in magnetic resonance imaging (MRI) systems. These currents are mainly induced by gradient fields. This study aims to propose a fast analytical method…

Modeling of anisotropic magnetostriction under alternating magnetization based on neural network-FFT model

Yanli Zhang, Hang Zhou, Dianhai Zhang, Ziyan Ren, Dexin Xie

This paper aims to investigate the magnetostrictive phenomenon in a single electrical steel sheet, which may cause vibration and noise in the cores of transformers and induction…

Stray-field loss and flux distribution inside magnetic steel plate under harmonic excitation

Xiaojun Zhao, Fanhui Meng, Zhiguang Cheng, Lanrong Liu, Junjie Zhang, Chao Fan

This paper aims to investigate an efficient approach to model the electromagnetic behaviors and predict stray-field loss inside the magnetic steel plate under 3D harmonic…

Macro-modeling and passivity enforcement for PMSM winding

Youpeng Huangfu, Song Wang, Shuang Wang, Hailin Li, Dongsheng Yuan, Shuhong Wang, Luca Di Rienzo

The purpose of this paper is to implement the macro-modeling and passivity enforcement for the equivalent high frequency circuit model of a single-phase winding for an alternating…

A novel saturated open-core fault current limiter and its nonlinear magnetic circuit model

Lei Li, Lin Li

This paper aims to present a novel energy-efficient saturated open-core fault current limiter (FCL) with special permanent magnet (PM) modules.

Measurement and modelling of rotational anomalous loss considering skin effect of electrical steel sheets

Jingsong Li, Lixiang Wang, Qingxin Yang, Shanming Wang, Yongjian Li, Changgeng Zhang, Baojun Qu

Due to existence of skin effect under rotational excitation, especially to high-frequency motors and power transformers run at the frequency of hundreds or even thousands of…

Influence of shielding plates on dynamical response of HL-2M vacuum vessel due to electromagnetic force during a plasma disruption

Kaiqiang Wang, Shejuan Xie, Hongwei Yuan, Cuixiang Pei, Zhenmao Chen, Weixin Li

In this paper, numerical modelling and dynamical response analysis were performed for the HL-2M vacuum vessel (VV) and shielding plates (SPs) during a plasma disruption by using…

The study of design and harmonic suppression for 800 kV EHV MSCR in engineering applications

Qingpeng Wang, Baodong Bai, Zhen An, Dezhi Chen

The purpose of this paper is to solve the reactive power adjustment and the overvoltage suppression problems in the extra high voltage (EHV) long distance grid, which often…

Model order reduction for quasi-magnetostatic problems

Yuqing Xie, Lin Li, Shuaibing Wang

To reduce the computational scale for quasi-magnetostatic problems, model order reduction is a good option. Reduced-order modelling techniques based on proper orthogonal…

Wideband modeling and transient analysis of sub-module in modular multilevel converter

Lei Qi, Zhiyuan Shen, Jianjian Gao, Guoliang Zhao, Xiang Cui, Wei Kang

This paper aims to establish the wideband model of a sub-module in a modular multilevel converter (MMC) and analyze the switch transients of the sub-module.

Characteristics of 3D magnetic field of magnetic coupling resonant wireless power transmission system

Xian Zhang, Zhaoyang Yuan, Yang Qingxin, Zhaohui Wang, Hao Meng, Yao Jin

The purpose of the paper is to analyze the impact of coupling on the distribution of the magnetic field and study the characteristics of the magnetic flux density in the…