The Experts below are selected from a list of 69 Experts worldwide ranked by ideXlab platform

Yi Ding - One of the best experts on this subject based on the ideXlab platform.

  • operational Reliability evaluation of restructured power systems with wind power penetration utilizing Reliability Network equivalent and time sequential simulation approaches
    Journal of Modern Power Systems and Clean Energy, 2014
    Co-Authors: Yi Ding, Lin Cheng, Yonghong Zhang, Yusheng Xue
    Abstract:

    In the last two decades, the wind power generation has been rapidly and widely developed in many regions and countries for tackling the problems of environmental pollution and sustainability of energy supply. However, the high share of intermittent and fluctuating wind power production has also increased the burden of system operator for securing power system Reliability during the operational phase. Moreover, the power system restructuring and deregulation have not only introduced the competition for reducing cost but also changed the strategy of Reliability evaluation and management of power systems. The conventional long-term Reliability evaluation techniques have been well developed, which have been more focused on planning and expansion rather than operation of power systems. This paper proposes a new technique for evaluating operational reliabilities of restructured power systems with high wind power penetration. The proposed technique is based on the combination of the Reliability Network equivalent and time-sequential simulation approaches. The operational Reliability Network equivalents are developed to represent Reliability models of wind farms, conventional generation and reserve provides, fast reserve providers and transmission Network in restructured power systems. A contingency management schema for real time operation considering its coupling with the day-ahead market is proposed. The time-sequential Monte Carlo simulation is used to model the chronological characteristics of corresponding Reliability Network equivalents. A simplified method is also developed in the simulation procedures for improving the computational efficiency. The proposed technique can be used to evaluate customers’ reliabilities considering high penetration of wind power during the power system operation in the deregulated environment.

  • Reliability assessment of restructured power systems using Reliability Network equivalent and pseudo sequential simulation techniques
    Electric Power Systems Research, 2007
    Co-Authors: Yi Ding, P Wang, Roy Billinton, L Goel, Rajesh Karki
    Abstract:

    This paper presents a technique to evaluate Reliability of a restructured power system with a bilateral market. The proposed technique is based on the combination of the Reliability Network equivalent and pseudo-sequential simulation approaches. The Reliability Network equivalent techniques have been implemented in the Monte Carlo simulation procedure to reduce the computational burden of the analysis. Pseudo-sequential simulation has been used to increase the computational efficiency of the non-sequential simulation method and to model the chronological aspects of market trading and system operation. Multi-state Markov models for generation and transmission systems are proposed and implemented in the simulation. A new load shedding scheme is proposed during generation inadequacy and Network congestion to minimize the load curtailment. The IEEE Reliability test system (RTS) is used to illustrate the technique.

  • Reliability and price risk assessment of a restructured power system with hybrid market structure
    2007 IEEE Power Engineering Society General Meeting, 2007
    Co-Authors: Yi Ding, P Wang
    Abstract:

    Summary form only given. In a restructured power system with hybrid market structure, generation companies and customers trade electricity and reserve either through a centralized power pool or by bilateral contracts based on their price and Reliability offers and requirements. This results in difficulty in price and Reliability management of such power systems. This paper presents techniques to evaluate both reliabilities and prices for the pool and bilateral customers in a hybrid power market. In these techniques, Reliability and price models for the power pool and bilateral suppliers have been developed using Reliability Network equivalents to easily include various agreements among market participants. Customer responses to prices are modeled using customer damage functions. The Reliability and price problems with and without considering agreements are formulated using improved optimal power flow techniques based on these models. The correlation between reliabilities and prices has been considered in the techniques. The modified IEEE Reliability Test System has been analyzed to illustrate the proposed techniques.

  • Reliability and price risk assessment of a restructured power system with hybrid market structure
    IEEE Transactions on Power Systems, 2006
    Co-Authors: Yi Ding, P Wang
    Abstract:

    In a restructured power system with hybrid market structure, generation companies and customers trade electricity and reserve either through a centralized power pool or by bilateral contracts based on their price and Reliability offers and requirements. This results in difficulty in price and Reliability management of such power systems. This paper presents techniques to evaluate both reliabilities and prices for the pool and bilateral customers in a hybrid power market. In these techniques, Reliability and price models for the power pool and bilateral suppliers have been developed using Reliability Network equivalents to easily include various agreements among market participants. Customer responses to prices are modeled using customer damage functions. The Reliability and price problems with and without considering agreements are formulated using improved optimal power flow techniques based on these models. The correlation between reliabilities and prices has been considered in the techniques. The modified IEEE Reliability Test System has been analyzed to illustrate the proposed techniques.

  • Reliability assessment of a restructured power system with hybrid market structure using Reliability Network equivalent approaches
    2004 International Conference on Power System Technology 2004. PowerCon 2004., 1
    Co-Authors: Yi Ding, P Wang
    Abstract:

    This paper presents a technique to evaluate nodal Reliability in a hybrid power market. Reliability models for the power pool and bilateral suppliers have been developed using Reliability Network equivalents. The impact of customer response on nodal reliabilities is included in the technique. Optimal power flow is used to replace AC power flow to minimize total system cost in each contingency state. The IEEE RTS has been analyzed to illustrate the technique.

P Wang - One of the best experts on this subject based on the ideXlab platform.

  • Reliability assessment of restructured power systems using Reliability Network equivalent and pseudo sequential simulation techniques
    Electric Power Systems Research, 2007
    Co-Authors: Yi Ding, P Wang, Roy Billinton, L Goel, Rajesh Karki
    Abstract:

    This paper presents a technique to evaluate Reliability of a restructured power system with a bilateral market. The proposed technique is based on the combination of the Reliability Network equivalent and pseudo-sequential simulation approaches. The Reliability Network equivalent techniques have been implemented in the Monte Carlo simulation procedure to reduce the computational burden of the analysis. Pseudo-sequential simulation has been used to increase the computational efficiency of the non-sequential simulation method and to model the chronological aspects of market trading and system operation. Multi-state Markov models for generation and transmission systems are proposed and implemented in the simulation. A new load shedding scheme is proposed during generation inadequacy and Network congestion to minimize the load curtailment. The IEEE Reliability test system (RTS) is used to illustrate the technique.

  • Reliability and price risk assessment of a restructured power system with hybrid market structure
    IEEE Transactions on Power Systems, 2006
    Co-Authors: Yi Ding, P Wang
    Abstract:

    In a restructured power system with hybrid market structure, generation companies and customers trade electricity and reserve either through a centralized power pool or by bilateral contracts based on their price and Reliability offers and requirements. This results in difficulty in price and Reliability management of such power systems. This paper presents techniques to evaluate both reliabilities and prices for the pool and bilateral customers in a hybrid power market. In these techniques, Reliability and price models for the power pool and bilateral suppliers have been developed using Reliability Network equivalents to easily include various agreements among market participants. Customer responses to prices are modeled using customer damage functions. The Reliability and price problems with and without considering agreements are formulated using improved optimal power flow techniques based on these models. The correlation between reliabilities and prices has been considered in the techniques. The modified IEEE Reliability Test System has been analyzed to illustrate the proposed techniques.

  • Reliability assessment of a restructured power system using Reliability Network equivalent techniques
    IEE Proceedings - Generation Transmission and Distribution, 2003
    Co-Authors: P Wang, Roy Billinton
    Abstract:

    Power system deregulation has introduced some fundamental problems regarding system Reliability management. This paper presents a technique used for the Reliability evaluation of restructured power systems. A Reliability model for each market player in a restructured power system is introduced in which a generation company is represented by an equivalent multistate generation provider and the transmission system is represented by an equivalent multistate transmission provider using Reliability Network equivalent techniques. Demand-side Reliability is considered in the analysis. The concept of nonuniform Reliability is presented and customer choices regarding Reliability can easily be implemented using the new technique. A test deregulated power system is used to illustrate the application of the technique.

  • unReliability cost assessment of an electric power system using Reliability Network equivalent approaches
    IEEE Transactions on Power Systems, 2002
    Co-Authors: P Wang, R Billinton, L Goel
    Abstract:

    UnReliability cost evaluation of an entire power system provides a set of indices that can be used by a system planner to balance the investments in different segments of the system in order to provide acceptable load point Reliability. This paper utilizes Reliability Network equivalent techniques to evaluate the customer load point unReliability cost indices caused by outages in different segments of the power system. The equivalent multistate generator (EMG), the equivalent mutistate lateral section (EMLS), and the equivalent multistate series element (EMSE) are introduced. The percentage distribution of unReliability costs for system segments is determined to find the weak segments in the system. A test system is analyzed to illustrate the application of these techniques.

  • Reliability Network equivalent approach to distribution system Reliability evaluation
    IEE Proceedings - Generation Transmission and Distribution, 1998
    Co-Authors: Roy Billinton, P Wang
    Abstract:

    The paper presents a Reliability-Network-equivalent approach to distribution-system-Reliability assessment. In this technique, a general feeder is defined and a simple set of equations is utilised. The basic general feeder equations and the Reliability Network equivalent provide a practical technique for evaluating the Reliability of complex radial distribution systems. The procedure is illustrated by application to a relatively simple but practical system example.

L Goel - One of the best experts on this subject based on the ideXlab platform.

  • Reliability assessment of restructured power systems using Reliability Network equivalent and pseudo sequential simulation techniques
    Electric Power Systems Research, 2007
    Co-Authors: Yi Ding, P Wang, Roy Billinton, L Goel, Rajesh Karki
    Abstract:

    This paper presents a technique to evaluate Reliability of a restructured power system with a bilateral market. The proposed technique is based on the combination of the Reliability Network equivalent and pseudo-sequential simulation approaches. The Reliability Network equivalent techniques have been implemented in the Monte Carlo simulation procedure to reduce the computational burden of the analysis. Pseudo-sequential simulation has been used to increase the computational efficiency of the non-sequential simulation method and to model the chronological aspects of market trading and system operation. Multi-state Markov models for generation and transmission systems are proposed and implemented in the simulation. A new load shedding scheme is proposed during generation inadequacy and Network congestion to minimize the load curtailment. The IEEE Reliability test system (RTS) is used to illustrate the technique.

  • unReliability cost assessment of an electric power system using Reliability Network equivalent approaches
    IEEE Transactions on Power Systems, 2002
    Co-Authors: P Wang, R Billinton, L Goel
    Abstract:

    UnReliability cost evaluation of an entire power system provides a set of indices that can be used by a system planner to balance the investments in different segments of the system in order to provide acceptable load point Reliability. This paper utilizes Reliability Network equivalent techniques to evaluate the customer load point unReliability cost indices caused by outages in different segments of the power system. The equivalent multistate generator (EMG), the equivalent mutistate lateral section (EMLS), and the equivalent multistate series element (EMSE) are introduced. The percentage distribution of unReliability costs for system segments is determined to find the weak segments in the system. A test system is analyzed to illustrate the application of these techniques.

P Wang - One of the best experts on this subject based on the ideXlab platform.

  • Reliability and price risk assessment of a restructured power system with hybrid market structure
    2007 IEEE Power Engineering Society General Meeting, 2007
    Co-Authors: Yi Ding, P Wang
    Abstract:

    Summary form only given. In a restructured power system with hybrid market structure, generation companies and customers trade electricity and reserve either through a centralized power pool or by bilateral contracts based on their price and Reliability offers and requirements. This results in difficulty in price and Reliability management of such power systems. This paper presents techniques to evaluate both reliabilities and prices for the pool and bilateral customers in a hybrid power market. In these techniques, Reliability and price models for the power pool and bilateral suppliers have been developed using Reliability Network equivalents to easily include various agreements among market participants. Customer responses to prices are modeled using customer damage functions. The Reliability and price problems with and without considering agreements are formulated using improved optimal power flow techniques based on these models. The correlation between reliabilities and prices has been considered in the techniques. The modified IEEE Reliability Test System has been analyzed to illustrate the proposed techniques.

  • Reliability assessment of a restructured power system with hybrid market structure using Reliability Network equivalent approaches
    2004 International Conference on Power System Technology 2004. PowerCon 2004., 1
    Co-Authors: Yi Ding, P Wang
    Abstract:

    This paper presents a technique to evaluate nodal Reliability in a hybrid power market. Reliability models for the power pool and bilateral suppliers have been developed using Reliability Network equivalents. The impact of customer response on nodal reliabilities is included in the technique. Optimal power flow is used to replace AC power flow to minimize total system cost in each contingency state. The IEEE RTS has been analyzed to illustrate the technique.

Yusheng Xue - One of the best experts on this subject based on the ideXlab platform.

  • operational Reliability evaluation of restructured power systems with wind power penetration utilizing Reliability Network equivalent and time sequential simulation approaches
    Journal of Modern Power Systems and Clean Energy, 2014
    Co-Authors: Yi Ding, Lin Cheng, Yonghong Zhang, Yusheng Xue
    Abstract:

    In the last two decades, the wind power generation has been rapidly and widely developed in many regions and countries for tackling the problems of environmental pollution and sustainability of energy supply. However, the high share of intermittent and fluctuating wind power production has also increased the burden of system operator for securing power system Reliability during the operational phase. Moreover, the power system restructuring and deregulation have not only introduced the competition for reducing cost but also changed the strategy of Reliability evaluation and management of power systems. The conventional long-term Reliability evaluation techniques have been well developed, which have been more focused on planning and expansion rather than operation of power systems. This paper proposes a new technique for evaluating operational reliabilities of restructured power systems with high wind power penetration. The proposed technique is based on the combination of the Reliability Network equivalent and time-sequential simulation approaches. The operational Reliability Network equivalents are developed to represent Reliability models of wind farms, conventional generation and reserve provides, fast reserve providers and transmission Network in restructured power systems. A contingency management schema for real time operation considering its coupling with the day-ahead market is proposed. The time-sequential Monte Carlo simulation is used to model the chronological characteristics of corresponding Reliability Network equivalents. A simplified method is also developed in the simulation procedures for improving the computational efficiency. The proposed technique can be used to evaluate customers’ reliabilities considering high penetration of wind power during the power system operation in the deregulated environment.