A Hybrid Conditions-Dependent Outage Model of a Transformer in Reliability Evaluation

He, Jinliang; Sun, Yang; Wang, Peng; Cheng, Lin

doi:10.1109/tpwrd.2009.2028771

Cited by 63 publications

(38 citation statements)

References 17 publications

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“…We formulate the operational reliability of the residential network by considering the real-time outage rate of the distribution transformer. According to reference [13], the real-time transformer outage rate can be built by integrating the transformer failure rate ( ) and transformer overload protection rate ( ) as follows:…”

Section: A Reliability-differentiated System Modelingmentioning

confidence: 99%

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Leveraging reliability-differentiated pricing for integrating PHEVs into residential distribution grid

Tan

Wang

2015

2015 IEEE Power &Amp; Energy Society Innovative Smart Grid Technologies Conference (ISGT)

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This paper proposes a framework for offering reliability-differentiated services in a residential distribution network with plug-in hybrid electric vehicles (PHEVs). A reliability-differentiated pricing mechanism is developed to satisfy the different reliability requirements of the customers while encouraging the customers to consume electricity in such a way that the reliability of the overall distribution system can be enhanced. Based on the formulated reliability-differentiated system, a hierarchical game approach is proposed in this study to coordinate the charging process of PHEVs in a decentralized fashion. The simulation results show that the hierarchical game approach is effective in enhancing both the reliability and economic profits of the system.Index Terms-Plug-in hybrid electric vehicle (PHEV), vehicleto-grid (V2G), reliability-differentiated pricing, decentralized control, game theory.

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Section: A Reliability-differentiated System Modelingmentioning

confidence: 99%

“…The player d finds its current best response strategy based on (13). Then the player provides other players with its current best response strategy .…”

Section: Algorithm 1 the Best Response Algorithm For The Noncooperatimentioning

confidence: 99%

Leveraging reliability-differentiated pricing for integrating PHEVs into residential distribution grid

Tan

Wang

2015

2015 IEEE Power &Amp; Energy Society Innovative Smart Grid Technologies Conference (ISGT)

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“…The conditions-dependent component models of the operational reliability theory [22,28,29] are adopted in this paper.…”

Section: B Component Modelsmentioning

confidence: 99%

Evaluation of cascading failure in power system based on the operational reliability theory

Zou

Cheng

Sun

2010

2010 IEEE 11th International Conference on Probabilistic Methods Applied to Power Systems

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According to the characteristics of the cascading failures in power grid, a lot of assessment methods based on the probability theory have been proposed in recent years. However, most of them ignore the influence of the changing operating conditions on the power system planning and operation. This paper assesses the risk of the cascading failure in the power system based on the operational reliability theory which considering the variation of operating states and environment of the power system. The operational reliability of the power system is calculated based on Markov Process which describes the transient probability of states. The key conception of this theory is that the failure rate and the probability of components are changing along with the life of the equipment, the operating states and the environment conditions. A new evaluation procedure is brought up to calculate the operational reliability indices which can provide the specific information of the cascading failure. The evaluating results of the test system confirm that this approach is applicable to analyze the cascading failures in real power system.

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“…Furthermore, the probabilities of generator tripping and load shedding increase with the continued deviation of voltage. Hybrid condition-dependent outage models for transformer and transmission line were further proposed to include the impacts of various operating conditions [13].…”

Section: Introductionmentioning

confidence: 99%

Reliability Evaluation of a Microgrid Considering Its Operating Condition

Xu¹,

Mitra²,

Wang³

et al. 2016

Journal of Electrical Engineering and Technology

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-Microgrids offer several reliability benefits, such as the improvement of load-point reliability and the opportunity for reliability-differentiated services. The primary goal of this work is to investigate the impacts of operating condition on the reliability index for microgrid system. It relies on a component failure rate model which quantifies the relationship between component failure rate and state variables. Some parameters involved are characterized by subjective uncertainty. Thus, fuzzy numbers are introduced to represent such parameters, and an optimization model based on Fuzzy Chance Constrained Programming (FCCP) is established for reliability index calculation. In addition, we present a hybrid algorithm which combines scenario enumeration and fuzzy simulation as a solution tool. The simulations in a microgrid test system show that reliability indices without considering operating condition can often prove to be optimistic. We also investigate two groups of situations, which include the different penetration levels of microsource and different confidence levels. The results support the necessity of considering operating condition for achieving accurate reliability evaluation.

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A Hybrid Conditions-Dependent Outage Model of a Transformer in Reliability Evaluation

Cited by 63 publications

References 17 publications

Leveraging reliability-differentiated pricing for integrating PHEVs into residential distribution grid

Leveraging reliability-differentiated pricing for integrating PHEVs into residential distribution grid

Evaluation of cascading failure in power system based on the operational reliability theory

Reliability Evaluation of a Microgrid Considering Its Operating Condition

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