Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Comparison of Optimal Hedging Policies forHydropower Reservoir System Operation
Kerman University of Medical Sciences, Kerman, Iran.
University of Baghdad, Jadriya, Iraq.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.ORCID-id: 0000-0002-6790-2653
Kerman University of Medical Sciences, Kerman, Iran.
2019 (engelsk)Inngår i: Water, ISSN 2073-4441, E-ISSN 2073-4441, Vol. 11, nr 1, artikkel-id 121Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Reservoiroperation rules play an important role in regions economic development. Meanwhile, hedging policies are mostly applied for municipal, industrial, and irrigation water supplies from reservoirs and it is less used for reservoir operation for hydropower generation. The concept of hedging and rationing factors can be used to maintain the water in a reservoir for the sake of increasing water storage and water head for future use. However, water storage and head are the key factors in operation of reservoir systems for hydropower generation. This study investigates the applicability of seven competing hedging policies including four customary forms of hedging (1PHP, 2PHP, 3PHP, DHP) and three new forms of hedging rules (SOPHP, BSOPHP, SHPHP) for reservoir operation for hydropower generation. The models were constructed in MATLABR2011b based on the characteristics of the Batang Padang hydropower reservoir system, Malaysia. In order to maximize the output of power generation in operational periods (2003–2009), three optimization algorithms namely particle swarm optimization (PSO), genetic algorithm (GA), and hybrid PSO-GA were linked to one of the constructed model (1PHP as a test) to find the most effective algorithm. Since the results demonstrated the superiority of the hybrid PSO-GA algorithm compared to either PSO or GA, the hybrid PSO-GA were linked to each constructed model in order to find the optimal decision variables of each model. The proposed methodology was validated using monthly data from 2010–2012. The results showed that there are no significant difference between the output of monthly mean power generation during 2003–2009 and 2010–2012. The results declared that by applying the proposed policies, the output of power generation could increase by 13% with respect to the historical management. Moreover, the discrepancies between mean power generations from highest to lowest months were reduced from 49 MW to 26 MW, which is almost half. This means that hedging policies could efficiently distribute the water-supply and power-supply in the operational period and increase the stability of the system. Among the studied hedging policies, SHPHP is the most convenient policy for hydropower reservoir operation and gave the best result.

sted, utgiver, år, opplag, sider
Switzerland: MDPI, 2019. Vol. 11, nr 1, artikkel-id 121
Emneord [en]
hedging policies, hydropower, reservoir system, operation, optimization, hybrid PSO-GA
HSV kategori
Forskningsprogram
Geoteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-72515DOI: 10.3390/w11010121ISI: 000459735100119Scopus ID: 2-s2.0-85059860442OAI: oai:DiVA.org:ltu-72515DiVA, id: diva2:1277616
Merknad

Validerad;2019;Nivå 2;2019-01-25 (svasva)

Tilgjengelig fra: 2019-01-10 Laget: 2019-01-10 Sist oppdatert: 2019-09-13bibliografisk kontrollert

Open Access i DiVA

fulltext(762 kB)29 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 762 kBChecksum SHA-512
5f3343f4f859b30c29fea654c039180e5ba0b0220608fb1a74bae421871f3254671307c539ea3eb2d5d69a51f873157d264fa02a61dc9023c275416e22b72010
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekstScopus

Personposter BETA

Al-Ansari, Nadhir

Søk i DiVA

Av forfatter/redaktør
Al-Ansari, Nadhir
Av organisasjonen
I samme tidsskrift
Water

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 29 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 69 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf