Dissimilarities of Physical Meaning between Loss of Load indices based on Load Curve Types

Choi, Woonkyeong; Lee, Yeonchan; Kim, Youngseob; Choi, Jaeseok

doi:10.1016/j.ifacol.2018.11.760

Cited by 2 publications

(4 citation statements)

References 5 publications

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“…(7). (8)(9)(10)(11)(12). The results illustrate the effect of the Forced Outage Rate (FOR) on the LOLP calculation.…”

Section: Resultsmentioning

confidence: 99%

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Novel Modeling of Forced Outage Rate Effect on the LOLP and LOLE

Qamber¹

2020

IJCDS

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Two important terms, the LOLP and LOLE, are helping to plan, design, operation and maintenance of the power system is the reliability study. Therefore, the future expectation needs the electric load historical data. The present study concentrates on these two terms used in the reliability. These terms are the Loss of Load Probability (LOLP) and Loss of Load Expectation (LOLE). These terms followed, when the loss of load occurred as the electric load exceeds the available generating capacity of the system. As a measure of the LOLP and LOLE, mean how much in time the load exceeds the available capacity of the system using the MATLAB (R2014b). A power plant has six power-generated units combined and considered to form one power system plant. Then, the LOLP and LOLE calculated for the system under different loads. This type of consideration is helping to plan the future of the power plant and finding the effect of load on power system reliability. At the same time, the LOLP-FOR and LOLE-FOR models investigated.

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“…(7). (8)(9)(10)(11)(12). The results illustrate the effect of the Forced Outage Rate (FOR) on the LOLP calculation.…”

Section: Resultsmentioning

confidence: 99%

“…Choi et al [9] propose a conversion function and a method to transform LOLED (days/year) using daily peak load curve into LOLEH (hours/year) using hourly load curve. The conversion function is formulated as variables of capacity and a forced outage rate of generator.…”

Section: Introductionmentioning

confidence: 99%

Novel Modeling of Forced Outage Rate Effect on the LOLP and LOLE

Qamber¹

2020

IJCDS

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“…The three generating-units represented by Fig. (1). The system variation of the average peak load over a period of 10 days summarized in Table I.…”

Section: Methodology and Resultsmentioning

confidence: 99%

“…Several studies carried closer to the present study. Some of these studies performed by Choi et al [1], where in their study they proposed a conversion function and method to transform the Loss of Load Expectation in days per year into hours per year using hourly load curve. The conversion function expressed as variables of capacity and Forced Outage Rate of generating-unit.…”

Section: Introductionmentioning

confidence: 99%

Power System Market Planning

Qamber¹,

Al-Hamad²

2019

EJERS

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The loss of load expectation (LOLE) considered an acceptable security standard across most of the national electricity systems. In the present study, the LOLE is calculated. This means that the LOLE needs developing a model. The developed model serving to assesses the security of supply risks associated with the different electricity capacity margin levels, where the capacity margin is the level by which available electricity generation capacity exceeds the maximum expected level of demand. Then, the developed model updated on an annual basis. The annual update is helping to fulfill the Electricity Authority for planning, operation and control. The developed model will assess the system by calculating the capacity margin probability by combining both the generation and load models. The calculation of LOLE is an internationally accepted criterion in capacity adequacy. The results for the model of each region vary due to several factors, such as generation resource, load forecast, and forced outage rates (FOR). The estimation of the risk is economically optimal reserve margin to a number of case studies assumptions considered in the present study. The results help in future planning for the electric system operation and control. Furthermore, the study is helping to evaluate the implications of the obtained results for the electricity policy market to determine the best model for market design in the future.

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Dissimilarities of Physical Meaning between Loss of Load indices based on Load Curve Types

Cited by 2 publications

References 5 publications

Novel Modeling of Forced Outage Rate Effect on the LOLP and LOLE

Novel Modeling of Forced Outage Rate Effect on the LOLP and LOLE

Power System Market Planning

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