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Use of meteorological data for improved estimation of risk in capacity adequacy studies

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Original languageEnglish
Title of host publication 2018 IEEE International Conference on Probabilistic Methods Applied to Power Systems (PMAPS)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages6
ISBN (Electronic)978-1-5386-3596-4
ISBN (Print)978-1-5386-3595-7
DOIs
Publication statusPublished - 20 Aug 2018

Abstract

This paper investigates the use of additional meteorological (temperature, wind) data, to obtain more reliable estimates of risk metrics for capacity adequacy in systems with significant wind generation. The advantage of this approach, which requires the careful verification of a number of statistical conditions (well satisfied in practice), is that a considerably longer dataset may be used to estimate the distribution of wind generation, and so also that of demand-net-of-wind, thereby overcoming the otherwise serious problem of a lack of data in the critical region of high demand and low wind. A further advantage is that a block-bootstrapping procedure may be used to assess the remaining uncertainty associated with wind generation, and the effect of that uncertainty on desired risk metrics. This is in contrast to the hindcast approach, where no such uncertainty estimation is possible and where there may be serious concerns about the calculated values of the risk metrics.

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