International Journal of Energy and Power Engineering

Volume 5, Issue 1, February 2016

  • Extended P21-Based Benchmarking

    Zhiguang Cheng, Behzad Forghani, Tao Liu, Yana Fan, Lanrong Liu

    Issue: Volume 5, Issue 1-1, February 2016
    Pages: 1-11
    Received: 24 August 2015
    Accepted: 25 August 2015
    Published: 28 September 2015
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    Abstract: This paper highlights two important aspects of the electromagnetic field modeling and simulation when used for industrial applications, namely the application based benchmarking activities and the magnetic material modeling. It emphasizes the relationship between the two, and briefly reviews the recent progress in extending the TEAM (Testing Electr... Show More
  • Finding Better Solutions to Reduce Computational Effort of Large-Scale Engineering Eddy Current Fields

    Dexin Xie, Zhanxin Zhu, Dongyang Wu, Jian Wang

    Issue: Volume 5, Issue 1-1, February 2016
    Pages: 12-20
    Received: 10 September 2015
    Accepted: 11 September 2015
    Published: 28 September 2015
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    Abstract: In the finite element analysis of the engineering eddy current fields in electrical machines and transformers there are the problems such as the huge scale of computation, too long computing time and poor precision which could not meet the demand of engineering accuracy. The current research situation and difficulties of these problems are analyzed... Show More
  • Magnetic Loss Inside Solid and Laminated Components under Extreme Excitations

    Zhiguang Cheng, Behzad Forghani, Yang Liu, Yana Fan, Tao Liu, Zhigang Zhao

    Issue: Volume 5, Issue 1-1, February 2016
    Pages: 21-30
    Received: 24 August 2015
    Accepted: 25 August 2015
    Published: 29 September 2015
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    Abstract: The modeling and numerical analysis of the magnetic loss inside components under multi-harmonic and/or DC-biasing excitations are increasingly of concern in large and special electromagnetic devices. This paper aims to investigate efficient and reliable approaches to determine the magnetic losses inside both the solid and laminated components under... Show More
  • Computation and Analysis of the DC-Biasing Magnetic Field by the Harmonic-Balanced Finite-Element Method

    Xiaojun Zhao, Dawei Guan, Fanhui Meng, Yuting Zhong, Zhiguang Cheng

    Issue: Volume 5, Issue 1-1, February 2016
    Pages: 31-36
    Received: 21 September 2015
    Accepted: 21 September 2015
    Published: 12 October 2015
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    Abstract: This paper sought to present harmonic-balanced method for finite element analysis of nonlinear eddy current field. The harmonic-balanced method can be used to compute the time-periodic electromagnetic field in harmonic domain, considering electric circuits coupled with the nonlinear magnetic field. 2-D and simplified 3-D model of laminated core is ... Show More
  • Fixed-Point Harmonic-Balanced Method for Nonlinear Eddy Current Problems

    Xiaojun Zhao, Yuting Zhong, Dawei Guan, Fanhui Meng, Zhiguang Cheng

    Issue: Volume 5, Issue 1-1, February 2016
    Pages: 37-41
    Received: 21 September 2015
    Accepted: 21 September 2015
    Published: 15 October 2015
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    Abstract: A new method to optimally determine the fixed-point reluctivity is presented to ensure the stable and fast convergence of harmonic solutions. Nonlinear system matrix is linearized by using the fixed-point technique, and harmonic solutions can be decoupled by the diagonal reluctivity matrix. The 1-D and 2-D non-linear eddy current problems under DC-... Show More
  • Effect of Controllable Distorted Flux on Magnetic Loss inside Laminated Core

    Yang Liu, Guang Ma, Yana Fan, Tao Liu, Lanrong Liu, Chongyou Jing

    Issue: Volume 5, Issue 1-1, February 2016
    Pages: 42-47
    Received: 09 October 2015
    Accepted: 09 October 2015
    Published: 25 October 2015
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    Abstract: This paper investigates the magnetic properties of grain oriented electrical steel under the controllable distorted flux conditions based on a product-level core model, and examines the effects of the distorted flux on magnetic loss inside the laminated cores with different excitation conditions, involving different harmonic phase difference, harmo... Show More
  • Modeling and Analysis of Leakage Flux and Iron Loss Inside Silicon Steel Laminations

    Yong Du, Wanqun Zheng, Jingjun Zhang

    Issue: Volume 5, Issue 1-1, February 2016
    Pages: 48-52
    Received: 21 October 2015
    Accepted: 22 October 2015
    Published: 10 November 2015
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    Abstract: This paper investigates the leakage flux and the iron loss generated in the laminated silicon sheets of the core or the magnetic shields of large power transformers. A verification model is well established, and proposed parabolic model (non-saturated region) and hybrid model (saturation region) to simulate the magnetic properties of the silicon st... Show More
  • Loss Calculation and Optimization Design of High Frequency Transformer

    Lin Li, Keke Liu, Xiaoying Zhang, Ning Zhang

    Issue: Volume 5, Issue 1-1, February 2016
    Pages: 53-56
    Received: 21 October 2015
    Accepted: 22 October 2015
    Published: 30 November 2015
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    Abstract: In this paper, the magnetization and loss properties are analyzed and compared of topical magnetic materials. The calculation methods are studied for the losses of the core and windings of the High Frequency Transformer (HFT). Based on the evaluation of the temperature increment, an optimization method is presented for the design of HFT. Finally, t... Show More
  • FEMAG: A High Performance Parallel Finite Element Toolbox for Electromagnetic Computations

    Tao Cui, Xue Jiang, Weiying Zheng

    Issue: Volume 5, Issue 1-1, February 2016
    Pages: 57-64
    Received: 09 November 2015
    Accepted: 09 November 2015
    Published: 30 November 2015
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    Abstract: This paper presents a parallel finite element toolbox for computing large electromagnetic devices on unstructured tetrahedral meshes, FEMAG—Fem for ElectroMagnetics on Adaptive Grids. The finite element toolbox deals with unstructured tetrahedral meshes and can solve electromagnetic eddy current problems in both frequency domain and time domain. It... Show More
  • Research on Magnetostriction Property of Silicon Steel Sheets

    Yanli Zhang, Yuandi Wang, Dianhai Zhang, Ziyan Ren, Dexin Xie

    Issue: Volume 5, Issue 1-1, February 2016
    Pages: 65-74
    Received: 30 November 2015
    Accepted: 01 December 2015
    Published: 17 December 2015
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    Abstract: When electrical devices such as electrical machines and transformers are in operation, the magnetostriction of the silicon steel sheets results in the deformation of the laminated iron core, which aggravates the vibration and noise of the iron core. Therefore, it is of significance to study the relationship between the magnetostrictive effect and e... Show More
  • Summary of the Special Issue “Numerical Analysis, Material Modeling and Validation for Magnetic Losses in Electromagnetic Devices”

    Zhiguang Cheng

    Issue: Volume 5, Issue 1-1, February 2016
    Pages: 75-77
    Received: 14 December 2015
    Accepted: 16 December 2015
    Published: 27 January 2016
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