The Experts below are selected from a list of 151998 Experts worldwide ranked by ideXlab platform

Patrick Wheeler - One of the best experts on this subject based on the ideXlab platform.

  • control design and voltage stability analysis of a droop controlled Electrical Power System for more electric aircraft
    IEEE Transactions on Industrial Electronics, 2017
    Co-Authors: Fei Gao, Serhiy Bozhko, Alessandro Costabeber, G M Asher, Patrick Wheeler
    Abstract:

    This paper focuses on the analysis of a single dc bus multigenerator Electrical Power System (EPS) for future more electric aircraft. Within such a single bus paradigm, the paper proposes a detailed control design procedure and provides a stability analysis based on the derivation of the output impedance of the source subSystem and input impedance of the load subSystem, including control dynamics. The single bus characteristic is analyzed and the stability properties of the EPS are investigated when supplying constant Power loads. In addition, the paper highlights the impact on stability of the number of parallel sources and of the Power sharing ratio. The theoretical analysis is instrumental in designing an optimally stable single dc bus EPS. The key findings are validated by experimental results.

  • accelerated functional level modeling of more electric aircraft Electrical Power System
    Electrical Systems for Aircraft Railway and Ship Propulsion, 2010
    Co-Authors: Serhiy Bozhko, G M Asher, Patrick Wheeler
    Abstract:

    The more-electric aircraft concept (MEA) is one of the major trends in modern aircraft electric Power System (EPS) engineering that results in a significantly increased number of onboard loads driven by Power-electronics. Development of appropriate EPS architectures requires intensive simulations to ensure the System integrity, requested quality and performance under possible normal and abnormal scenarios. At the same time, the increased use of tightly-controlled motor drives and Power electronic converters can make the simulation of the large-scale EPS impractical due to enormous computation time or numerical non-convergence due to the model complexity. This paper addresses the development of a functional models library capable of significant improvement in simulation time whilst maintaining good accuracy up to a specified frequency range. The library application is demonstrated on the example study of the performance of a twin-generator example EPS under both normal and faulty regimes.

G M Asher - One of the best experts on this subject based on the ideXlab platform.

  • control design and voltage stability analysis of a droop controlled Electrical Power System for more electric aircraft
    IEEE Transactions on Industrial Electronics, 2017
    Co-Authors: Fei Gao, Serhiy Bozhko, Alessandro Costabeber, G M Asher, Patrick Wheeler
    Abstract:

    This paper focuses on the analysis of a single dc bus multigenerator Electrical Power System (EPS) for future more electric aircraft. Within such a single bus paradigm, the paper proposes a detailed control design procedure and provides a stability analysis based on the derivation of the output impedance of the source subSystem and input impedance of the load subSystem, including control dynamics. The single bus characteristic is analyzed and the stability properties of the EPS are investigated when supplying constant Power loads. In addition, the paper highlights the impact on stability of the number of parallel sources and of the Power sharing ratio. The theoretical analysis is instrumental in designing an optimally stable single dc bus EPS. The key findings are validated by experimental results.

  • modal analysis of a pmsg based dc Electrical Power System in the more electric aircraft using eigenvalues sensitivity
    IEEE Transactions on Transportation Electrification, 2015
    Co-Authors: Fei Gao, Serhiy Bozhko, Christopher Ian Hill, Xiancheng Zheng, G M Asher
    Abstract:

    This paper deals with the modeling and small-signal stability analysis of a dc-distribution Electrical Power System (EPS) sourced by a permanent magnet synchronous generator (PMSG). The topology employed here is one of the main candidates for future more electric aircraft (MEA). A detailed mathematical model is developed and comprehensive EPS modal analysis is performed. Eigenvalue sensitivity and participation factor are utilized to assess the effect of machine and control parameters, as well as System operating conditions, on EPS stability. Furthermore, this paper also presents comparative analysis of System models with and without the inclusion of System cabling. This crucial analysis shows that the tendencies in stability behavior can be significantly different with and without cabling. It is, therefore, shown that System simplification, by removal of cabling, can deliver remarkably misleading results. Time domain simulations are carried out to support the theoretical analysis. The comprehensive analysis presented in this paper provides EPS designers with an extremely useful methodology for the selection of appropriate EPS parameters at the early design stages.

  • accelerated functional level modeling of more electric aircraft Electrical Power System
    Electrical Systems for Aircraft Railway and Ship Propulsion, 2010
    Co-Authors: Serhiy Bozhko, G M Asher, Patrick Wheeler
    Abstract:

    The more-electric aircraft concept (MEA) is one of the major trends in modern aircraft electric Power System (EPS) engineering that results in a significantly increased number of onboard loads driven by Power-electronics. Development of appropriate EPS architectures requires intensive simulations to ensure the System integrity, requested quality and performance under possible normal and abnormal scenarios. At the same time, the increased use of tightly-controlled motor drives and Power electronic converters can make the simulation of the large-scale EPS impractical due to enormous computation time or numerical non-convergence due to the model complexity. This paper addresses the development of a functional models library capable of significant improvement in simulation time whilst maintaining good accuracy up to a specified frequency range. The library application is demonstrated on the example study of the performance of a twin-generator example EPS under both normal and faulty regimes.

Fei Gao - One of the best experts on this subject based on the ideXlab platform.

  • control design and voltage stability analysis of a droop controlled Electrical Power System for more electric aircraft
    IEEE Transactions on Industrial Electronics, 2017
    Co-Authors: Fei Gao, Serhiy Bozhko, Alessandro Costabeber, G M Asher, Patrick Wheeler
    Abstract:

    This paper focuses on the analysis of a single dc bus multigenerator Electrical Power System (EPS) for future more electric aircraft. Within such a single bus paradigm, the paper proposes a detailed control design procedure and provides a stability analysis based on the derivation of the output impedance of the source subSystem and input impedance of the load subSystem, including control dynamics. The single bus characteristic is analyzed and the stability properties of the EPS are investigated when supplying constant Power loads. In addition, the paper highlights the impact on stability of the number of parallel sources and of the Power sharing ratio. The theoretical analysis is instrumental in designing an optimally stable single dc bus EPS. The key findings are validated by experimental results.

  • modal analysis of a pmsg based dc Electrical Power System in the more electric aircraft using eigenvalues sensitivity
    IEEE Transactions on Transportation Electrification, 2015
    Co-Authors: Fei Gao, Serhiy Bozhko, Christopher Ian Hill, Xiancheng Zheng, G M Asher
    Abstract:

    This paper deals with the modeling and small-signal stability analysis of a dc-distribution Electrical Power System (EPS) sourced by a permanent magnet synchronous generator (PMSG). The topology employed here is one of the main candidates for future more electric aircraft (MEA). A detailed mathematical model is developed and comprehensive EPS modal analysis is performed. Eigenvalue sensitivity and participation factor are utilized to assess the effect of machine and control parameters, as well as System operating conditions, on EPS stability. Furthermore, this paper also presents comparative analysis of System models with and without the inclusion of System cabling. This crucial analysis shows that the tendencies in stability behavior can be significantly different with and without cabling. It is, therefore, shown that System simplification, by removal of cabling, can deliver remarkably misleading results. Time domain simulations are carried out to support the theoretical analysis. The comprehensive analysis presented in this paper provides EPS designers with an extremely useful methodology for the selection of appropriate EPS parameters at the early design stages.

Serhiy Bozhko - One of the best experts on this subject based on the ideXlab platform.

  • control design and voltage stability analysis of a droop controlled Electrical Power System for more electric aircraft
    IEEE Transactions on Industrial Electronics, 2017
    Co-Authors: Fei Gao, Serhiy Bozhko, Alessandro Costabeber, G M Asher, Patrick Wheeler
    Abstract:

    This paper focuses on the analysis of a single dc bus multigenerator Electrical Power System (EPS) for future more electric aircraft. Within such a single bus paradigm, the paper proposes a detailed control design procedure and provides a stability analysis based on the derivation of the output impedance of the source subSystem and input impedance of the load subSystem, including control dynamics. The single bus characteristic is analyzed and the stability properties of the EPS are investigated when supplying constant Power loads. In addition, the paper highlights the impact on stability of the number of parallel sources and of the Power sharing ratio. The theoretical analysis is instrumental in designing an optimally stable single dc bus EPS. The key findings are validated by experimental results.

  • modal analysis of a pmsg based dc Electrical Power System in the more electric aircraft using eigenvalues sensitivity
    IEEE Transactions on Transportation Electrification, 2015
    Co-Authors: Fei Gao, Serhiy Bozhko, Christopher Ian Hill, Xiancheng Zheng, G M Asher
    Abstract:

    This paper deals with the modeling and small-signal stability analysis of a dc-distribution Electrical Power System (EPS) sourced by a permanent magnet synchronous generator (PMSG). The topology employed here is one of the main candidates for future more electric aircraft (MEA). A detailed mathematical model is developed and comprehensive EPS modal analysis is performed. Eigenvalue sensitivity and participation factor are utilized to assess the effect of machine and control parameters, as well as System operating conditions, on EPS stability. Furthermore, this paper also presents comparative analysis of System models with and without the inclusion of System cabling. This crucial analysis shows that the tendencies in stability behavior can be significantly different with and without cabling. It is, therefore, shown that System simplification, by removal of cabling, can deliver remarkably misleading results. Time domain simulations are carried out to support the theoretical analysis. The comprehensive analysis presented in this paper provides EPS designers with an extremely useful methodology for the selection of appropriate EPS parameters at the early design stages.

  • automated stability assessment of more electric aircraft Electrical Power Systems
    International Conference on Electrical Systems for Aircraft Railway Ship Propulsion and Road Vehicles, 2015
    Co-Authors: Christopher Ian Hill, Serhiy Bozhko, Kongpan Areerak, Tao Yang, Milijana Odavic
    Abstract:

    This paper has details the theoretical background, development and application of a newly developed Automated Stability Assessment Tool for More Electric Aircraft Electrical Power Systems. This tool is shown to provide an easy to use and extremely flexible way for System designers to analyze Electrical Power System stability. It is shown how System parameters can be easily varied in order to investigate their impact on Electrical Power System stability. This methodology could therefore save significant time and money, both by accelerating the design process, and by helping design engineers to select the lowest cost components needed to ensure Electrical Power System stability.

  • accelerated functional level modeling of more electric aircraft Electrical Power System
    Electrical Systems for Aircraft Railway and Ship Propulsion, 2010
    Co-Authors: Serhiy Bozhko, G M Asher, Patrick Wheeler
    Abstract:

    The more-electric aircraft concept (MEA) is one of the major trends in modern aircraft electric Power System (EPS) engineering that results in a significantly increased number of onboard loads driven by Power-electronics. Development of appropriate EPS architectures requires intensive simulations to ensure the System integrity, requested quality and performance under possible normal and abnormal scenarios. At the same time, the increased use of tightly-controlled motor drives and Power electronic converters can make the simulation of the large-scale EPS impractical due to enormous computation time or numerical non-convergence due to the model complexity. This paper addresses the development of a functional models library capable of significant improvement in simulation time whilst maintaining good accuracy up to a specified frequency range. The library application is demonstrated on the example study of the performance of a twin-generator example EPS under both normal and faulty regimes.

Minwon Park - One of the best experts on this subject based on the ideXlab platform.

  • critical current critical temperature and magnetic field based emtdc model component for hts Power cable
    IEEE Transactions on Applied Superconductivity, 2007
    Co-Authors: Jonghyun Bang, Jaeho Kim, Kideok Sim, Jeonwook Cho, Jaeyoung Yoon, Minwon Park
    Abstract:

    Before applying the high temperature superconducting (HTS) Power cable to real utility network, System analysis should be performed using simulation tools. For the practical use of HTS devices in Electrical Power System, prior simulation analysis is very important. PSCAD/EMTDC simulation is one of the most popular and useful analysis tools for Electrical Power System. Unfortunately the model component for HTS Power cable is not provided in the PSCAD/EMTDC simulation tool. In this paper, EMTDC model component for HTS Power cable has been developed considering critical current, critical temperature, magnetic field, and recovery time constant which depend on the sorts of HTS wire. The numerical model of HTS Power cable in the PSCAD/EMTDC was designed by using the real experimental data obtained from a real HTS 1G wire test. The utility application analysis of HTS Power cable was also performed using the model component developed. The component for HTS Power cable could be variously used when the Power System includes HTS Power cable, especially it will be readily analyzed by the PSCAD/EMTDC in order to obtain the data for the level of fault current, Power flow, and Power losses, and so on.

  • critical current critical temperature and magnetic field based emtdc model component for hts Power cable
    IEEE Transactions on Applied Superconductivity, 2007
    Co-Authors: Jonghyun Bang, Hyangho Je, Jaeho Kim, Kideok Sim, Jeonwook Cho, Jaeyoung Yoon, Minwon Park, Inkeun Yu
    Abstract:

    Before applying the high temperature superconducting (HTS) Power cable to real utility network, System analysis should be performed using simulation tools. For the practical use of HTS devices in Electrical Power System, prior simulation analysis is very important. PSCAD/EMTDC simulation is one of the most popular and useful analysis tools for Electrical Power System. Unfortunately the model component for HTS Power cable is not provided in the PSCAD/EMTDC simulation tool. In this paper, EMTDC model component for HTS Power cable has been developed considering critical current, critical temperature, magnetic field, and recovery time constant which depend on the sorts of HTS wire. The numerical model of HTS Power cable in the PSCAD/EMTDC was designed by using the real experimental data obtained from a real HTS 1G wire test. The utility application analysis of HTS Power cable was also performed using the model component developed. The component for HTS Power cable could be variously used when the Power System includes HTS Power cable, especially it will be readily analyzed by the PSCAD/EMTDC in order to obtain the data for the level of fault current, Power flow, and Power losses, and so on.