The Experts below are selected from a list of 306 Experts worldwide ranked by ideXlab platform

Mi Zhou - One of the best experts on this subject based on the ideXlab platform.

  • Load-Damping Characteristic Control Method in an Isolated Power System With Industrial Voltage-Sensitive Load
    IEEE Transactions on Power Systems, 2016
    Co-Authors: Siyang Liao, Jian Xu, Xiaomin Li, Junhe Gu, Mi Zhou, Yinpeng Qu, Jianxun Dong
    Abstract:

    Load-damping characteristic models the load response to the frequency deviation, which has important impact on System frequency response. The load-damping coefficient is normally considered as a constant, obtained from operational experiences in large-scale Power Systems or from detailed load models in isolated Power Systems. An Industrial isolated Power System for aluminum production driven by coal-fired Power and large scale wind Power is studied in this paper. Since the electrolytic aluminum load is driven by direct current, it is one type of voltage-sensitive load and does not respond to the frequency deviation. This paper proposes a load-damping characteristic control method for such isolated Industrial Power System with voltage-sensitive load. To decrease the maximum frequency deviation during transient process, a time-varying load-damping coefficient control scheme is presented. Simulation is done on real-time digital simulator (RTDS) and the results verify the effectiveness of the proposed control method.

  • An isolated Industrial Power System driven by wind-coal Power for aluminum productions: A case study of frequency control
    2015 IEEE Power & Energy Society General Meeting, 2015
    Co-Authors: Jian Xu, Jianxun Dong, Siyang Liao, Xiaomin Li, Junhe Gu, Mi Zhou
    Abstract:

    Summary form only given. Due to the uneven geographical distribution between load and wind Power, currently it is difficult to integrate the large-scale wind Power into the State Grid in China. There are significant wind curtailments for wind farms due to System restrictions. This paper proposes a new way of utilizing wind Power, i.e. in-situ consumption, as an alternative to the costly development of long-distance transmission of large-scale wind Power. Electrolytic aluminum load, which is one of the most typical high energy consuming loads, is employed to absorb the excess wind Power in western China. An actual isolated Industrial Power System for aluminum production driven by wind Power and coal-fired Power is described. The penetration level of wind Power in the isolated Power System is up to 48.8%. The Power imbalance between generation and load demand caused by wind Power fluctuation or the tripping of coal-fired generators can dramatically impact the frequency stability of the isolated Power System, which is of small inertia. An on-line identification method of Power imbalance based on Wide Area Measurement System (WAMS) is presented. According to the characteristics of the electrolytic aluminum load, a System frequency control method by regulating the bus voltages of aluminum loads to eliminate the Power imbalance is introduced. The simulation is done in Real Time Digital Simulator (RTDS) and the results verify the validity of the proposed frequency control method.

  • An Isolated Industrial Power System Driven by Wind-Coal Power for Aluminum Productions: A Case Study of Frequency Control
    IEEE Transactions on Power Systems, 2015
    Co-Authors: Jian Xu, Jianxun Dong, Siyang Liao, Xiaomin Li, Junhe Gu, Mi Zhou
    Abstract:

    Due to the uneven geographical distribution between load and wind Power, currently it is difficult to integrate the large-scale wind Power into the State Grid in China. There are significant wind curtailments for wind farms due to System restrictions. This paper proposes a new way of utilizing wind Power, i.e., in-situ consumption, as an alternative to the costly development of long-distance transmission of large-scale wind Power. Electrolytic aluminum load, which is one of the most typical high energy consuming loads, is employed to absorb the excess wind Power in western China. An actual isolated Industrial Power System for aluminum production driven by wind Power and coal-fired Power is described. The penetration level of wind Power in the isolated Power System is up to 48.8%. The Power imbalance between generation and load demand caused by wind Power fluctuation or the tripping of coal-fired generators can dramatically impact the frequency stability of the isolated Power System, which is of small inertia. An online identification method of Power imbalance based on Wide Area Measurement System (WAMS) is presented. According to the characteristics of the electrolytic aluminum load, a System frequency control method by regulating the bus voltages of aluminum loads to eliminate the Power imbalance is introduced. The simulation is done in Real Time Digital Simulator (RTDS) and the results verify the validity of the proposed frequency control method.

  • A novel coordinated control method of an isolated Power System with high-level wind Power penetration
    The SICE Annual Conference 2013, 2013
    Co-Authors: Siyang Liao, Jianxun Dong, Jian Xu, Xiaomin Li, Chengzhu Qi, Chao Xu, Mi Zhou
    Abstract:

    This paper presents a novel coordinated control method of the frequency and voltage in an isolated Industrial Power System for aluminum production. The isolated System is on a wind penetration level around 40%. Since the particular structure and characteristic of the electrolytic aluminum, a reactive Power closed loop control method based on frequency information is proposed. According to online identification of the unbalanced Power by WAMS, the feedback control parameter can be optimized. The presented results by RTDS show that the method strategy proposed in this paper is quite effective in stability control.

Jianxun Dong - One of the best experts on this subject based on the ideXlab platform.

  • Load-Damping Characteristic Control Method in an Isolated Power System With Industrial Voltage-Sensitive Load
    IEEE Transactions on Power Systems, 2016
    Co-Authors: Siyang Liao, Jian Xu, Xiaomin Li, Junhe Gu, Mi Zhou, Yinpeng Qu, Jianxun Dong
    Abstract:

    Load-damping characteristic models the load response to the frequency deviation, which has important impact on System frequency response. The load-damping coefficient is normally considered as a constant, obtained from operational experiences in large-scale Power Systems or from detailed load models in isolated Power Systems. An Industrial isolated Power System for aluminum production driven by coal-fired Power and large scale wind Power is studied in this paper. Since the electrolytic aluminum load is driven by direct current, it is one type of voltage-sensitive load and does not respond to the frequency deviation. This paper proposes a load-damping characteristic control method for such isolated Industrial Power System with voltage-sensitive load. To decrease the maximum frequency deviation during transient process, a time-varying load-damping coefficient control scheme is presented. Simulation is done on real-time digital simulator (RTDS) and the results verify the effectiveness of the proposed control method.

  • An isolated Industrial Power System driven by wind-coal Power for aluminum productions: A case study of frequency control
    2015 IEEE Power & Energy Society General Meeting, 2015
    Co-Authors: Jian Xu, Jianxun Dong, Siyang Liao, Xiaomin Li, Junhe Gu, Mi Zhou
    Abstract:

    Summary form only given. Due to the uneven geographical distribution between load and wind Power, currently it is difficult to integrate the large-scale wind Power into the State Grid in China. There are significant wind curtailments for wind farms due to System restrictions. This paper proposes a new way of utilizing wind Power, i.e. in-situ consumption, as an alternative to the costly development of long-distance transmission of large-scale wind Power. Electrolytic aluminum load, which is one of the most typical high energy consuming loads, is employed to absorb the excess wind Power in western China. An actual isolated Industrial Power System for aluminum production driven by wind Power and coal-fired Power is described. The penetration level of wind Power in the isolated Power System is up to 48.8%. The Power imbalance between generation and load demand caused by wind Power fluctuation or the tripping of coal-fired generators can dramatically impact the frequency stability of the isolated Power System, which is of small inertia. An on-line identification method of Power imbalance based on Wide Area Measurement System (WAMS) is presented. According to the characteristics of the electrolytic aluminum load, a System frequency control method by regulating the bus voltages of aluminum loads to eliminate the Power imbalance is introduced. The simulation is done in Real Time Digital Simulator (RTDS) and the results verify the validity of the proposed frequency control method.

  • An Isolated Industrial Power System Driven by Wind-Coal Power for Aluminum Productions: A Case Study of Frequency Control
    IEEE Transactions on Power Systems, 2015
    Co-Authors: Jian Xu, Jianxun Dong, Siyang Liao, Xiaomin Li, Junhe Gu, Mi Zhou
    Abstract:

    Due to the uneven geographical distribution between load and wind Power, currently it is difficult to integrate the large-scale wind Power into the State Grid in China. There are significant wind curtailments for wind farms due to System restrictions. This paper proposes a new way of utilizing wind Power, i.e., in-situ consumption, as an alternative to the costly development of long-distance transmission of large-scale wind Power. Electrolytic aluminum load, which is one of the most typical high energy consuming loads, is employed to absorb the excess wind Power in western China. An actual isolated Industrial Power System for aluminum production driven by wind Power and coal-fired Power is described. The penetration level of wind Power in the isolated Power System is up to 48.8%. The Power imbalance between generation and load demand caused by wind Power fluctuation or the tripping of coal-fired generators can dramatically impact the frequency stability of the isolated Power System, which is of small inertia. An online identification method of Power imbalance based on Wide Area Measurement System (WAMS) is presented. According to the characteristics of the electrolytic aluminum load, a System frequency control method by regulating the bus voltages of aluminum loads to eliminate the Power imbalance is introduced. The simulation is done in Real Time Digital Simulator (RTDS) and the results verify the validity of the proposed frequency control method.

  • A novel coordinated control method of an isolated Power System with high-level wind Power penetration
    The SICE Annual Conference 2013, 2013
    Co-Authors: Siyang Liao, Jianxun Dong, Jian Xu, Xiaomin Li, Chengzhu Qi, Chao Xu, Mi Zhou
    Abstract:

    This paper presents a novel coordinated control method of the frequency and voltage in an isolated Industrial Power System for aluminum production. The isolated System is on a wind penetration level around 40%. Since the particular structure and characteristic of the electrolytic aluminum, a reactive Power closed loop control method based on frequency information is proposed. According to online identification of the unbalanced Power by WAMS, the feedback control parameter can be optimized. The presented results by RTDS show that the method strategy proposed in this paper is quite effective in stability control.

  • An Industrial System Powered by Wind and Coal for Aluminum Production: A Case Study of Technical Demonstration and Economic Feasibility
    Energies, 2012
    Co-Authors: Yonghua Song, Xiao-ming Li, Jian Xu, Jianxun Dong
    Abstract:

    This paper presents a case study of an isolated Industrial Power System for aluminum production. The novel concept is that the cost of aluminum electrolysis can be significantly reduced by innovative application of hybrid Systems incorporating wind energy and low-grade coal. In addition, the low-grade coal, which sale is not profitable in the market, can be locally consumed by the isolated Power System. The Power System thus fully utilizes the local resources in an effective and economic manner. However, several technical and economic issues are still of concern because the Industrial System is isolated from the state grid. This paper hence discusses these issues and demonstrates the feasibility of such a hybrid Power System from the technical and economic perspectives.

Jian Xu - One of the best experts on this subject based on the ideXlab platform.

  • Load-Damping Characteristic Control Method in an Isolated Power System With Industrial Voltage-Sensitive Load
    IEEE Transactions on Power Systems, 2016
    Co-Authors: Siyang Liao, Jian Xu, Xiaomin Li, Junhe Gu, Mi Zhou, Yinpeng Qu, Jianxun Dong
    Abstract:

    Load-damping characteristic models the load response to the frequency deviation, which has important impact on System frequency response. The load-damping coefficient is normally considered as a constant, obtained from operational experiences in large-scale Power Systems or from detailed load models in isolated Power Systems. An Industrial isolated Power System for aluminum production driven by coal-fired Power and large scale wind Power is studied in this paper. Since the electrolytic aluminum load is driven by direct current, it is one type of voltage-sensitive load and does not respond to the frequency deviation. This paper proposes a load-damping characteristic control method for such isolated Industrial Power System with voltage-sensitive load. To decrease the maximum frequency deviation during transient process, a time-varying load-damping coefficient control scheme is presented. Simulation is done on real-time digital simulator (RTDS) and the results verify the effectiveness of the proposed control method.

  • An isolated Industrial Power System driven by wind-coal Power for aluminum productions: A case study of frequency control
    2015 IEEE Power & Energy Society General Meeting, 2015
    Co-Authors: Jian Xu, Jianxun Dong, Siyang Liao, Xiaomin Li, Junhe Gu, Mi Zhou
    Abstract:

    Summary form only given. Due to the uneven geographical distribution between load and wind Power, currently it is difficult to integrate the large-scale wind Power into the State Grid in China. There are significant wind curtailments for wind farms due to System restrictions. This paper proposes a new way of utilizing wind Power, i.e. in-situ consumption, as an alternative to the costly development of long-distance transmission of large-scale wind Power. Electrolytic aluminum load, which is one of the most typical high energy consuming loads, is employed to absorb the excess wind Power in western China. An actual isolated Industrial Power System for aluminum production driven by wind Power and coal-fired Power is described. The penetration level of wind Power in the isolated Power System is up to 48.8%. The Power imbalance between generation and load demand caused by wind Power fluctuation or the tripping of coal-fired generators can dramatically impact the frequency stability of the isolated Power System, which is of small inertia. An on-line identification method of Power imbalance based on Wide Area Measurement System (WAMS) is presented. According to the characteristics of the electrolytic aluminum load, a System frequency control method by regulating the bus voltages of aluminum loads to eliminate the Power imbalance is introduced. The simulation is done in Real Time Digital Simulator (RTDS) and the results verify the validity of the proposed frequency control method.

  • An Isolated Industrial Power System Driven by Wind-Coal Power for Aluminum Productions: A Case Study of Frequency Control
    IEEE Transactions on Power Systems, 2015
    Co-Authors: Jian Xu, Jianxun Dong, Siyang Liao, Xiaomin Li, Junhe Gu, Mi Zhou
    Abstract:

    Due to the uneven geographical distribution between load and wind Power, currently it is difficult to integrate the large-scale wind Power into the State Grid in China. There are significant wind curtailments for wind farms due to System restrictions. This paper proposes a new way of utilizing wind Power, i.e., in-situ consumption, as an alternative to the costly development of long-distance transmission of large-scale wind Power. Electrolytic aluminum load, which is one of the most typical high energy consuming loads, is employed to absorb the excess wind Power in western China. An actual isolated Industrial Power System for aluminum production driven by wind Power and coal-fired Power is described. The penetration level of wind Power in the isolated Power System is up to 48.8%. The Power imbalance between generation and load demand caused by wind Power fluctuation or the tripping of coal-fired generators can dramatically impact the frequency stability of the isolated Power System, which is of small inertia. An online identification method of Power imbalance based on Wide Area Measurement System (WAMS) is presented. According to the characteristics of the electrolytic aluminum load, a System frequency control method by regulating the bus voltages of aluminum loads to eliminate the Power imbalance is introduced. The simulation is done in Real Time Digital Simulator (RTDS) and the results verify the validity of the proposed frequency control method.

  • A novel coordinated control method of an isolated Power System with high-level wind Power penetration
    The SICE Annual Conference 2013, 2013
    Co-Authors: Siyang Liao, Jianxun Dong, Jian Xu, Xiaomin Li, Chengzhu Qi, Chao Xu, Mi Zhou
    Abstract:

    This paper presents a novel coordinated control method of the frequency and voltage in an isolated Industrial Power System for aluminum production. The isolated System is on a wind penetration level around 40%. Since the particular structure and characteristic of the electrolytic aluminum, a reactive Power closed loop control method based on frequency information is proposed. According to online identification of the unbalanced Power by WAMS, the feedback control parameter can be optimized. The presented results by RTDS show that the method strategy proposed in this paper is quite effective in stability control.

  • An Industrial System Powered by Wind and Coal for Aluminum Production: A Case Study of Technical Demonstration and Economic Feasibility
    Energies, 2012
    Co-Authors: Yonghua Song, Xiao-ming Li, Jian Xu, Jianxun Dong
    Abstract:

    This paper presents a case study of an isolated Industrial Power System for aluminum production. The novel concept is that the cost of aluminum electrolysis can be significantly reduced by innovative application of hybrid Systems incorporating wind energy and low-grade coal. In addition, the low-grade coal, which sale is not profitable in the market, can be locally consumed by the isolated Power System. The Power System thus fully utilizes the local resources in an effective and economic manner. However, several technical and economic issues are still of concern because the Industrial System is isolated from the state grid. This paper hence discusses these issues and demonstrates the feasibility of such a hybrid Power System from the technical and economic perspectives.

Chaoshun Chen - One of the best experts on this subject based on the ideXlab platform.

  • protective relay settings of tie line tripping and load shedding for an integrated steelmaking cogeneration System
    IEEE Transactions on Industry Applications, 2010
    Co-Authors: Chaoshun Chen, Chengting Hsu, Y D Lee
    Abstract:

    This paper presents the protective relay settings of tie line tripping and design of load-shedding scheme for an integrated steelmaking Industrial Power System to ensure System stability after a severe fault contingency on an external utility Power network. The transient stability analysis of the Industrial Power System with the equivalent external TaiPower System has been executed for an actual fault contingency in 2005. The mathematical models of 13 cogeneration units in the plant and several large generators of a nearby TaiPower thermal plant are included in the computer simulation to solve the System transient response for the fault contingency to verify the accuracy of the models used. To prevent tripping of critical loads due to an external fault contingency, the undervoltage and under/overfrequency relays with proper settings are applied for the tripping of external and internal tie lines. To restore System stability of the Industrial Power System for the islanding operation after tie line tripping, load shedding is designed to disconnect a proper amount of noncritical loads by considering the governor response and protective constraints of cogeneration units. According to the transient stability analysis of the Industrial Power System with the proposed protective relay settings and load-shedding scheme, it is found that the voltage sag and oscillation problem caused by fault contingency in the external TaiPower System can be mitigated if the tie line tripping is executed in time to prevent the shutdown of critical loads and tripping of cogeneration units.

  • Protective relay setting of the tie line tripping and load shedding for the Industrial Power System
    IEEE Transactions on Industry Applications, 2000
    Co-Authors: Chaoshun Chen, Yulung Ke
    Abstract:

    This paper presents the proper underfrequency relay settings to enhance the operation of Industrial Power Systems with cogeneration facilities. A cogeneration unit was installed in the plant in 1996 to supply the Power demand of the plant. The cogeneration unit always faces the shutdown problem when a severe fault occurs on the nearby TaiPower network. It is, therefore, necessary to investigate plant protective relay settings to prevent a whole plant blackout when the contingency occurs. A transient stability analysis has been performed by considering both the detailed models of the cogenerators with the governor and exciter control Systems and the external utility Power System. The underfrequency relay settings for tie line tripping and load shedding are designed to prevent the tripping of the cogeneration units so that the electricity service to the critical loads of the Industrial customer can be maintained in case serious external disturbances such as short circuit faults occur. In this study, the scheme of underfrequency relay settings has been developed for the Power System of a large synthetic rubber manufacturer with a large cogeneration unit. Three study cases have been selected for the transient stability analysis to verify the effectiveness of the proposed protective relay setting.

  • protective relay setting of the tie line tripping and load shedding for the Industrial Power System
    International Conference on Pervasive Services, 1999
    Co-Authors: Chaoshun Chen, Yulung Ke, Chengting Hsu
    Abstract:

    This paper presents the proper underfrequency relay settings to enhance the operation of Industrial Power Systems with cogeneration facilities. A cogeneration unit has been installed in the plant in 1996 to supply the Power demand of the plant. The cogeneration unit always faces a shut down problem when there is a severe fault on the nearby TaiPower network. It is therefore necessary to investigate the plant protective relay settings to prevent the whole plant blackout when the contingency occurs. The transient stability analysis has been performed by considering both the detail models of the cogenerators with the governor and exciter control Systems and the external utility Power System. The under frequency relay settings for tie line tripping and load shedding are designed to prevent the tripping of the cogeneration units so that the electricity service to the critical loads of the Industrial customer can be maintained in case serious external disturbances such as short circuit faults occur. In this study, the scheme of underfrequency relay settings has been developed for the Power System of a large synthetic rubber manufacturer with a large cogeneration unit. Three study cases have been selected for the transient stability analysis to verify the effectiveness of the proposed protective relay setting.

Siyang Liao - One of the best experts on this subject based on the ideXlab platform.

  • Load-Damping Characteristic Control Method in an Isolated Power System With Industrial Voltage-Sensitive Load
    IEEE Transactions on Power Systems, 2016
    Co-Authors: Siyang Liao, Jian Xu, Xiaomin Li, Junhe Gu, Mi Zhou, Yinpeng Qu, Jianxun Dong
    Abstract:

    Load-damping characteristic models the load response to the frequency deviation, which has important impact on System frequency response. The load-damping coefficient is normally considered as a constant, obtained from operational experiences in large-scale Power Systems or from detailed load models in isolated Power Systems. An Industrial isolated Power System for aluminum production driven by coal-fired Power and large scale wind Power is studied in this paper. Since the electrolytic aluminum load is driven by direct current, it is one type of voltage-sensitive load and does not respond to the frequency deviation. This paper proposes a load-damping characteristic control method for such isolated Industrial Power System with voltage-sensitive load. To decrease the maximum frequency deviation during transient process, a time-varying load-damping coefficient control scheme is presented. Simulation is done on real-time digital simulator (RTDS) and the results verify the effectiveness of the proposed control method.

  • An isolated Industrial Power System driven by wind-coal Power for aluminum productions: A case study of frequency control
    2015 IEEE Power & Energy Society General Meeting, 2015
    Co-Authors: Jian Xu, Jianxun Dong, Siyang Liao, Xiaomin Li, Junhe Gu, Mi Zhou
    Abstract:

    Summary form only given. Due to the uneven geographical distribution between load and wind Power, currently it is difficult to integrate the large-scale wind Power into the State Grid in China. There are significant wind curtailments for wind farms due to System restrictions. This paper proposes a new way of utilizing wind Power, i.e. in-situ consumption, as an alternative to the costly development of long-distance transmission of large-scale wind Power. Electrolytic aluminum load, which is one of the most typical high energy consuming loads, is employed to absorb the excess wind Power in western China. An actual isolated Industrial Power System for aluminum production driven by wind Power and coal-fired Power is described. The penetration level of wind Power in the isolated Power System is up to 48.8%. The Power imbalance between generation and load demand caused by wind Power fluctuation or the tripping of coal-fired generators can dramatically impact the frequency stability of the isolated Power System, which is of small inertia. An on-line identification method of Power imbalance based on Wide Area Measurement System (WAMS) is presented. According to the characteristics of the electrolytic aluminum load, a System frequency control method by regulating the bus voltages of aluminum loads to eliminate the Power imbalance is introduced. The simulation is done in Real Time Digital Simulator (RTDS) and the results verify the validity of the proposed frequency control method.

  • An Isolated Industrial Power System Driven by Wind-Coal Power for Aluminum Productions: A Case Study of Frequency Control
    IEEE Transactions on Power Systems, 2015
    Co-Authors: Jian Xu, Jianxun Dong, Siyang Liao, Xiaomin Li, Junhe Gu, Mi Zhou
    Abstract:

    Due to the uneven geographical distribution between load and wind Power, currently it is difficult to integrate the large-scale wind Power into the State Grid in China. There are significant wind curtailments for wind farms due to System restrictions. This paper proposes a new way of utilizing wind Power, i.e., in-situ consumption, as an alternative to the costly development of long-distance transmission of large-scale wind Power. Electrolytic aluminum load, which is one of the most typical high energy consuming loads, is employed to absorb the excess wind Power in western China. An actual isolated Industrial Power System for aluminum production driven by wind Power and coal-fired Power is described. The penetration level of wind Power in the isolated Power System is up to 48.8%. The Power imbalance between generation and load demand caused by wind Power fluctuation or the tripping of coal-fired generators can dramatically impact the frequency stability of the isolated Power System, which is of small inertia. An online identification method of Power imbalance based on Wide Area Measurement System (WAMS) is presented. According to the characteristics of the electrolytic aluminum load, a System frequency control method by regulating the bus voltages of aluminum loads to eliminate the Power imbalance is introduced. The simulation is done in Real Time Digital Simulator (RTDS) and the results verify the validity of the proposed frequency control method.

  • A novel coordinated control method of an isolated Power System with high-level wind Power penetration
    The SICE Annual Conference 2013, 2013
    Co-Authors: Siyang Liao, Jianxun Dong, Jian Xu, Xiaomin Li, Chengzhu Qi, Chao Xu, Mi Zhou
    Abstract:

    This paper presents a novel coordinated control method of the frequency and voltage in an isolated Industrial Power System for aluminum production. The isolated System is on a wind penetration level around 40%. Since the particular structure and characteristic of the electrolytic aluminum, a reactive Power closed loop control method based on frequency information is proposed. According to online identification of the unbalanced Power by WAMS, the feedback control parameter can be optimized. The presented results by RTDS show that the method strategy proposed in this paper is quite effective in stability control.