Operational reliability assessment of power systems considering condition-dependent failure rate

Sun, Yang; Wang, P.; Cheng, Long; Liu, H.

doi:10.1049/iet-gtd.2009.0006

Cited by 73 publications

(37 citation statements)

References 20 publications

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“…In general, the operational reliability of a component is affected by the weather conditions and the loading conditions [104,105]. The effect of weather has been extensively discussed in this paper.…”

Section: Component Modelmentioning

confidence: 99%

Influence of extreme weather and climate change on the resilience of power systems: Impacts and possible mitigation strategies

Panteli

Mancarella

2015

Electric Power Systems Research

608

256

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a b s t r a c tA key driver for developing more sustainable energy systems is to decrease the effects of climate change, which could include an increase in the frequency, intensity and duration of severe weather events. Amongst others, extreme weather has a significant impact on critical infrastructures, and is considered one of the main causes of wide-area electrical disturbances worldwide. In fact, weather-related power interruptions often tend to be of high impact and sustained duration, ranging from hours to days, because of the large damage on transmission and distribution facilities. Hence, enhancing the grid resilience to such events is becoming of increasing interest. In this outlook, this paper first discusses the influence of weather and climate change on the reliability and operation of power system components. Since modelling the impact of weather is a difficult task because of its stochastic and unpredicted nature, a review of existing methodologies is provided in order to get an understanding of the key modelling approaches, challenges and requirements for assessing the effect of extreme weather on the frequency and duration of power system blackouts. Then, the emerging concept of resilience is discussed in the context of power systems as critical infrastructure, including several defense plans for boosting the resilience of power systems to extreme weather events. A comprehensive modelling research framework is finally outlined, which can help understand and model the impact of extreme weather on power systems and how this can be prevented or mitigated in the future.

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Section: Component Modelmentioning

confidence: 99%

Influence of extreme weather and climate change on the resilience of power systems: Impacts and possible mitigation strategies

Panteli

Mancarella

2015

Electric Power Systems Research

608

256

View full text Add to dashboard Cite

show abstract

“…Two sets of indices, namely basic load point indices and system performance indices, have been defined for the PDS [17,18]. The system indices are calculated as weighted averages of the basic load point indices.…”

Section: Total System Planning Cost Versus Reliability Benefit Trade-mentioning

confidence: 99%

“…The determination of an acceptable level of reliability is presently achieved by comparing actual interruption frequency and duration index with arbitrary targets [17][18][19]. The term "power system reliability" is a designation of ability of an electric power network to provide an adequate supply of electrical energy [17].…”

Section: Introductionmentioning

confidence: 99%

“…The failure rate of a system component is usually assumed to be constant in conventional reliability evaluation of power systems. It has been realized from realtime operation that a component will experience more failures during heavy loading conditions than those during light loading conditions, which means the failure rate of a component varies with the loading condition in real-time operation [18]. Two sets of indices, namely the basic load point indices and system performance indices, have been defined for distribution systems, and an analytical technique using the contingency numeration approach is presented that is used to evaluate the customer interruption cost of a simple radial distribution system (RDS) [19].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Radial Path Building Algorithm for Optimal Feeder Planning of Primary Distribution Networks Considering Reliability Assessment

Kumar¹,

Samantaray²,

Kamwa³

2014

Electric Power Components and Systems

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“…References [10,11] proposed a weather dependent short-term reliability model for the transmission equipment while Ref. [12] proposed a current dependent model. Reference [13] built an outage probability model for transmission lines that can consider multiple kinds of disasters.…”

Section: Introductionmentioning

confidence: 99%

Mid-short-term risk assessment of power systems considering impact of external environment

Zhang

Chen

Liu

et al. 2013

J. Mod. Power Syst. Clean Energy

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Ice flashover, lightning flashover and bird damage are the main reasons that cause transmission facility failure. The impact of these environmental factors on the operational risk levels of power systems should be taken into account in power system maintenance scheduling and operation planning. This paper studies the midshort-term risk assessment methodology considering the impact of the external environment. The relationship model between natural disasters and transmission lines is presented. The conditional outage rate model and the sampling technique are then proposed considering the correlated outage of multiple transmission lines when a disaster happens. The framework of the mid-short-term risk assessment model is outlined. A test case of Jiangxi provincial power grid validates the proposed model. The results show that the model can quantify the impact of disasters on the forced outage rate of transmission component and their outage correlation, and thus effectively revealing the mid-short-term risk of power systems. The model can facilitate a more strategic decision-making on maintenance scheduling and operation planning of power systems.

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Operational reliability assessment of power systems considering condition-dependent failure rate

Cited by 73 publications

References 20 publications

Influence of extreme weather and climate change on the resilience of power systems: Impacts and possible mitigation strategies

Influence of extreme weather and climate change on the resilience of power systems: Impacts and possible mitigation strategies

A Radial Path Building Algorithm for Optimal Feeder Planning of Primary Distribution Networks Considering Reliability Assessment

Mid-short-term risk assessment of power systems considering impact of external environment

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