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In countries with Capacity Mechanisms in place, where Explicit Interconnector Participation model is to be used, one of the key market design questions to be answered is how the amount of interconnector capacity that is allowed to participate in the auctions should be determined. This paper argues for an interconnector capacity de-rating approach. In order for the de-rating factor to be representative...
Integration of Plug-in Electric Vehicles (PEVs) and renewables poses substantial challenges in electricity distribution networks. This paper investigates the impact of large-scale PEV penetration in distribution networks, when also considering the integration of other renewable energy resources, e.g., wind, hydropower and Photovoltaics (PVs). As such, analysis on an existing low voltage local power...
One of the most pressing concerns in the investigation of new probabilistic reliability criteria pertains to the data required as input to the evolving probabilistic models. This paper discusses an area of failure data collection that has been overlooked in power system reliability studies: corrective control actions. Background information is provided on the need for evolution of data collection...
A comprehensive analysis of reliability of electricity supply to end users requires a unique set of models, methods and tools. Of special significance are long term power market models for predicting future operating states (generation and load patterns) and more detailed network simulation models for analysing consequences of contingencies. This paper describes an integrated approach for reliability...
The purpose of this paper is to present a review of some fundamental concepts and practical applications in the area of common-mode and dependent (CMD) outage events in power systems. The paper is a result of ongoing activity carried out by the Probability Applications for Common and dependent Mode Events (PACME) Working Group (WG) of the Reliability, Risk and Probability Applications Subcommittee...
Relatively fewer studies exist in literature on including the complex effects of transmission protection system related failure dependencies in the reliability prediction models. Usage of extensive Markov models has been usually advocated to capture the impact of protection system reliability on power system reliability. A new analytical method which makes use of approximate methods of system reliability...
In order to capture the effect of dependent failures that could arise due to the various transmission protection system response scenarios on power system reliability, complex Markov models or fault trees combined with event trees are typically employed in the predictive reliability studies. A unique approach utilizing minimal cutsets (MC) and the approximate methods of system reliability evaluation,...
The reliability of protection systems has a considerable effect on the reliability of supply, and hence appropriate protection system reliability models must be incorporated in power system reliability studies. These studies assume increasing prominence, especially in the wake of influx of smart grid technologies, making it imperative to handle the accompanying failure dependencies in detail. This...
This paper presents a reliability perspective of capturing the impact of individual smart grid technologies at the distribution level. A small case study on Hafslund Nett, the largest distribution network company in Norway, is presented to substantiate the hypothesis that by utilising SG technologies such as sensors and remote controlled sectionalisers together with global positioning systems, there...
Several studies on the migration strategies to enable the realization of various visions of Smart Grids (SGs) from the existing legacy power systems are on the anvil. A subjective treatment of ‘reliability’ as encountered in the several existing working definitions on SGs leaves much to be desired. Only a quantification of envisioned reliability benefits and impacts can justify the rationale for embracing...
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