The Experts below are selected from a list of 267 Experts worldwide ranked by ideXlab platform

Yong Kang - One of the best experts on this subject based on the ideXlab platform.

  • IECON - Industrial power distribution system harmonic Resonance Problem and solution with shunt active power filter
    IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017
    Co-Authors: Yuqing He, Yong Kang
    Abstract:

    Harmonic Resonance Problems can be aroused in the industrial power system in the presence of both nonlinear loads and shunt capacitors. This paper investigates the harmonic Resonance Problem by case-studying of a copper smelting plant low voltage power distribution system. A flexible selective harmonic compensation and Resonance damping algorithm for shunt active power filter (SAPF) is proposed to solve this Problem. Theoretical analyses based on equivalent system model have shown that harmonic compensation together with Resonance damping by the SAPF could obtain the best performance to improve the power quality of the power distribution system. Finally, the industrial application field test results are presented to demonstrate the applicability of the SAPF.

  • Industrial power distribution system harmonic Resonance Problem and solution with shunt active power filter
    IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017
    Co-Authors: Cong Liu, Yuqing He, Ke Dai, Yong Kang
    Abstract:

    Harmonic Resonance Problems can be aroused in the industrial power system in the presence of both nonlinear loads and shunt capacitors. This paper investigates the harmonic Resonance Problem by case-studying of a copper smelting plant low voltage power distribution system. A flexible selective harmonic compensation and Resonance damping algorithm for shunt active power filter (SAPF) is proposed to solve this Problem. Theoretical analyses based on equivalent system model have shown that harmonic compensation together with Resonance damping by the SAPF could obtain the best performance to improve the power quality of the power distribution system. Finally, the industrial application field test results are presented to demonstrate the applicability of the SAPF.

Ying Cheng - One of the best experts on this subject based on the ideXlab platform.

  • Series and Parallel Resonance Problem of Wideband Frequency Harmonic and Its Elimination Strategy
    IEEE Transactions on Power Electronics, 2014
    Co-Authors: Zhikang Shuai, John Shen, Chunming Tu, Ying Cheng
    Abstract:

    The extensive use of pulse width modulation control technology in smart grid will lead to prominent enlargement of high-frequency harmonics. The effects of the distributed capacitances of transmission line and transformer that are neglected previously will be very obvious. The performance of the traditional harmonic eliminating method for wideband harmonic is limited, which will lead to huge challenge to the analysis, evaluation, and elimination of harmonics as well as series and parallel Resonance Problem. In this paper, to accurately describe the influence of wideband harmonic on smart grid, the multiterminal analysis model of harmonic degradation in smart grid is established, especially the distributed capacitances of the transmission line and the transformer are considered. Then, a novel topology of hybrid active power filter (HAPF) for Resonance damping and multitype harmonic eliminating is proposed. The Resonance damping model of the new topology is established; analysis results indicate that the proposed HAPF has a good harmonic Resonance damping characteristic. Both simulation and experimental results have validated the validity of the theoretical analysis in this paper.

Zhikang Shuai - One of the best experts on this subject based on the ideXlab platform.

  • Series and Parallel Resonance Problem of Wideband Frequency Harmonic and Its Elimination Strategy
    IEEE Transactions on Power Electronics, 2014
    Co-Authors: Zhikang Shuai, John Shen, Chunming Tu, Ying Cheng
    Abstract:

    The extensive use of pulse width modulation control technology in smart grid will lead to prominent enlargement of high-frequency harmonics. The effects of the distributed capacitances of transmission line and transformer that are neglected previously will be very obvious. The performance of the traditional harmonic eliminating method for wideband harmonic is limited, which will lead to huge challenge to the analysis, evaluation, and elimination of harmonics as well as series and parallel Resonance Problem. In this paper, to accurately describe the influence of wideband harmonic on smart grid, the multiterminal analysis model of harmonic degradation in smart grid is established, especially the distributed capacitances of the transmission line and the transformer are considered. Then, a novel topology of hybrid active power filter (HAPF) for Resonance damping and multitype harmonic eliminating is proposed. The Resonance damping model of the new topology is established; analysis results indicate that the proposed HAPF has a good harmonic Resonance damping characteristic. Both simulation and experimental results have validated the validity of the theoretical analysis in this paper.

Mathias Nest - One of the best experts on this subject based on the ideXlab platform.

  • the lack of Resonance Problem in coherent control with real time time dependent density functional theory
    Journal of Chemical Theory and Computation, 2012
    Co-Authors: Shampa Raghunathan, Mathias Nest
    Abstract:

    We will show that adiabatic real-time TDDFT predicts a time- and energy-dependent electronic structure of molecules, which makes it hard to combine TDDFT with coherent control schemes that depend on Resonance conditions. In this study, we use sequences of ultrashort pulses, separated by long intervals of field free evolution, to illustrate this phenomenon for two molecules and two functionals. In coherent control scenarios, long laser pulses, with many oscillation periods, excite the system continuously and, in this way produce, a time-dependent electronic structure.

T.h. Hubing - One of the best experts on this subject based on the ideXlab platform.

  • on the interior Resonance Problem when applying a hybrid fem mom approach to model printed circuit boards
    IEEE Transactions on Electromagnetic Compatibility, 2002
    Co-Authors: Yun Ji, T.h. Hubing
    Abstract:

    A hybrid finite element method/method of moments (FEM/MoM) technique is used to analyze a printed circuit board power bus structure where the source and observation points are in the near field. The FEM is used to model the lossy region between the planes of the board including the source. The MoM is used to model the region outside the planes and provide a radiation boundary condition to terminate the FEM mesh. Numerical results for a bridged power bus structure are compared with measurements. A nonphysical interior Resonance of the electric field integral equation is observed. The Problem can be avoided by using a hybrid technique based on a combined field integral equation.

  • On the interior Resonance Problem when applying a hybrid FEM/MoM approach to model printed circuit boards
    IEEE Transactions on Electromagnetic Compatibility, 2002
    Co-Authors: Yun Ji, T.h. Hubing
    Abstract:

    A hybrid finite element method/method of moments (FEM/MoM) technique is used to analyze a printed circuit board power bus structure where the source and observation points are in the near field. The FEM is used to model the lossy region between the planes of the board including the source. The MoM is used to model the region outside the planes and provide a radiation boundary condition to terminate the FEM mesh. Numerical results for a bridged power bus structure are compared with measurements. A nonphysical interior Resonance of the electric field integral equation is observed. The Problem can be avoided by using a hybrid technique based on a combined field integral equation.