FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W820881207> ?p ?o ?g. }

• W820881207 abstract "The aim of this research is to demonstrate some more efficient approaches to solve the n1 security constrained optimal power flow (SCOPF) problems by using structure-exploiting primal-dual interior point methods (IPM). Firstly, we consider a DC-SCOPF model, which is a linearized version of AC-SCOPF. One new reformulation of the DC-SCOPF model is suggested, in which most matrices that need to be factorized are constant. Consequently, most numerical factorizations and a large number of back-solve operations only need to be performed once throughout the entire IPM process. In the framework of the structure-exploiting IPM implementation, one of the major computational efforts consists of forming the Schur complement matrix, which is very computationally expensive if no further measure is applied. One remedy is to apply a preconditioned iterative method to solve the corresponding linear systems which appear in assembling the Schur complement matrix. We suggest two main schemes to pick a good and robust preconditioner for SCOPF problems based on combining different “active” contingency scenarios. The numerical results show that our new approaches are much faster than the default structure-exploiting method in OOPS, and also that it requires less memory. The second part of this thesis goes to the standard AC-SCOPF problem, which is a nonlinear and nonconvex optimization problem. We present a new contingency generation algorithm: it starts with solving the basic OPF problem, which is a much smaller problem of the same structure, and then generates contingency scenarios dynamically when needed. Some theoretical analysis of this algorithm is shown for the linear case, while the numerical results are exciting, as this new algorithm works for both AC and DC cases. It can find all the active scenarios and significantly reduce the number of scenarios one needs to contain in the model. As a result, it speeds up the solving process and may require less IPM iterations. Also, some heuristic algorithms are designed and presented to predict the active contingencies for the standard AC-SCOPF, based on the use of AC-OPF or DC-SCOPF. We test our heuristic algorithms on the modified IEEE 24-bus system, and also present their corresponding numerical results in the thesis." @default.
• W820881207 created "2016-06-24" @default.
• W820881207 creator A5017799769 @default.
• W820881207 date "2013-07-01" @default.
• W820881207 modified "2023-09-27" @default.
• W820881207 title "Structure-exploiting interior point methods for security constrained optimal power flow problems" @default.
• W820881207 cites W112912537 @default.
• W820881207 cites W133562275 @default.
• W820881207 cites W1506342804 @default.
• W820881207 cites W1508335918 @default.
• W820881207 cites W1518039036 @default.
• W820881207 cites W1568240140 @default.
• W820881207 cites W1571403844 @default.
• W820881207 cites W1575701986 @default.
• W820881207 cites W1580138843 @default.
• W820881207 cites W180478659 @default.
• W820881207 cites W1875551406 @default.
• W820881207 cites W1971536112 @default.
• W820881207 cites W1976385924 @default.
• W820881207 cites W1976826271 @default.
• W820881207 cites W1981263136 @default.
• W820881207 cites W1987243715 @default.
• W820881207 cites W2000856205 @default.
• W820881207 cites W2002257715 @default.
• W820881207 cites W2009249377 @default.
• W820881207 cites W2009926490 @default.
• W820881207 cites W2014261141 @default.
• W820881207 cites W2016764453 @default.
• W820881207 cites W2029780375 @default.
• W820881207 cites W2031735948 @default.
• W820881207 cites W2033225140 @default.
• W820881207 cites W2039400631 @default.
• W820881207 cites W2043265651 @default.
• W820881207 cites W2044265095 @default.
• W820881207 cites W2048799772 @default.
• W820881207 cites W2049219350 @default.
• W820881207 cites W2059094681 @default.
• W820881207 cites W2068531154 @default.
• W820881207 cites W2069426496 @default.
• W820881207 cites W2084329631 @default.
• W820881207 cites W2085137170 @default.
• W820881207 cites W2100601679 @default.
• W820881207 cites W2102672047 @default.
• W820881207 cites W2106021709 @default.
• W820881207 cites W2111416445 @default.
• W820881207 cites W2118682758 @default.
• W820881207 cites W2120693878 @default.
• W820881207 cites W2123871098 @default.
• W820881207 cites W2124504864 @default.
• W820881207 cites W2129258807 @default.
• W820881207 cites W2140153041 @default.
• W820881207 cites W2141610630 @default.
• W820881207 cites W2143476164 @default.
• W820881207 cites W2155696034 @default.
• W820881207 cites W2158619267 @default.
• W820881207 cites W2158935301 @default.
• W820881207 cites W2160967319 @default.
• W820881207 cites W2163900153 @default.
• W820881207 cites W2166182618 @default.
• W820881207 cites W2168283238 @default.
• W820881207 cites W2175698703 @default.
• W820881207 cites W217854003 @default.
• W820881207 cites W2278504053 @default.
• W820881207 cites W2296319761 @default.
• W820881207 cites W3029645440 @default.
• W820881207 cites W3104001151 @default.
• W820881207 cites W3117493475 @default.
• W820881207 cites W629661753 @default.
• W820881207 hasPublicationYear "2013" @default.
• W820881207 type Work @default.
• W820881207 sameAs 820881207 @default.
• W820881207 citedByCount "1" @default.
• W820881207 countsByYear W8208812072015 @default.
• W820881207 crossrefType "dissertation" @default.
• W820881207 hasAuthorship W820881207A5017799769 @default.
• W820881207 hasConcept C104317684 @default.
• W820881207 hasConcept C106487976 @default.
• W820881207 hasConcept C112313634 @default.
• W820881207 hasConcept C11413529 @default.
• W820881207 hasConcept C121332964 @default.
• W820881207 hasConcept C126255220 @default.
• W820881207 hasConcept C127716648 @default.
• W820881207 hasConcept C155253501 @default.
• W820881207 hasConcept C158693339 @default.
• W820881207 hasConcept C159694833 @default.
• W820881207 hasConcept C159985019 @default.
• W820881207 hasConcept C167431342 @default.
• W820881207 hasConcept C185592680 @default.
• W820881207 hasConcept C188082640 @default.
• W820881207 hasConcept C192562407 @default.
• W820881207 hasConcept C2731191 @default.
• W820881207 hasConcept C33923547 @default.
• W820881207 hasConcept C41008148 @default.
• W820881207 hasConcept C55493867 @default.
• W820881207 hasConcept C62520636 @default.
• W820881207 hasConceptScore W820881207C104317684 @default.
• W820881207 hasConceptScore W820881207C106487976 @default.
• W820881207 hasConceptScore W820881207C112313634 @default.
• W820881207 hasConceptScore W820881207C11413529 @default.
• W820881207 hasConceptScore W820881207C121332964 @default.

• next