Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Реєстрація зберіганн...arrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
addClaim

This Research product is the result of merged Research products in OpenAIRE.

You have already added 0 works in your ORCID record related to the merged Research product.

A search and sensitivity analysis of time optimal plans of energy resources supply using SolverTable add-in

A search and sensitivity analysis of time optimal plans of energy resources supply using SolverTable add-in

Abstract

Any optimization technique should be adapted to concrete management task, and this study focu-ses on practical issues of resource allocation modeling used for energy management. The principal aspect is uneven consumption of energy resources over time (within a day, a week, a year) that requires the development of optimization models for decision-making about their supply, considering time-related energy consumption predictions and operational features of energy sources. The proposed resource allocation model, built in Excel to use its standard optimization tool Solver, has unusual structure with time periods to overcome the issue and identify the time optimal plan of energy resources supply. Another important aspect is flexibility and stability requirement of optimization model in the situation of possible change of inputs. SolverTable add-in is applied to succeed in dealing with the issue; it is a specialized tool for sensitivity analysis, which complements the functionality of the standard Excel Solver and helps to interpretate the results of repeated computational experiments that are crucial for rational decisions. The proposed resource allocation model detailed for the case of electricity supply. Electricity distribution system has a grid structure that allows use matrix model with a number of electricity sources and a number of consumers, represented by their hourly electricity demand. Objective function is the total cost of electricity for consumers with the same supplier. Two groups of constraints for the optimal day-ahead hourly scheduling: limited proposals of electricity sources and equation between the demand and supply. Sensitivity analysis of the model allowed to identify an electricity source, which limit changes can improve the result of objective function. The model is tested on actual data to choose a time optimal plan for electricity supply; the publication contains just an illustrative numerical example. The proposed model can be modified to solve other problems of optimal allocation of energy resources. Tabl.: 3. Fig.: 6. Refs: 5 titles.

Розглянуто проблематику практичного застосування оптимізаційного моделювання для задач енергетичного менеджменту. Запропоновано підхід до формування оптимізаційної моделі розподілу ресурсу у середовищі Excel, що враховує фактор часу, адже енергоспоживання має знач-ну нерівномірність протягом доби, тижня, року, і відповідно рішення щодо оптимального плану постачання енергетичних ресурсів приймаю-ться на підставі прогнозованих обсягів їхнього споживання у наступних часових періодах та з урахуванням особливостей функціонування джерел енергії. Для аналізу чутливості часових оптимальних планів до зміни вхідних даних моделі застосовано спеціалізовану надбудову SolverTable, що доповнює функціонал стандартної надбудови Розв’язувач (Excel Solver) і допомагає в інтерпретації результатів багаторазових обчислювальних експериментів для прийняття раціональних управлінських рішень. Модель апробовано на реальних даних для визначення оптимального плану закупівлі електричної енергії, у публікації наведено ілюстративний приклад.

Keywords

електронно-табличне моделювання, оптимізаційне моделювання, моделювання розподілу ресурсу, аналіз чутливості, SolverTable, Розв’язувач (Excel Solver), енергетичний менеджмент, spreadsheet modeling, optimization modeling, resource allocation modeling, sensitivity analysis, SolverTable, Excel Solver, energy management

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold