Matches in SemOpenAlex for { <https://semopenalex.org/work/W2863492> ?p ?o ?g. }
Showing items 1 to 78 of
78
with 100 items per page.
- W2863492 abstract "Voltage instability is a major concern in operation of power systems and it is well known that voltage instability and collapse have led to blackout or abnormally low voltages in a significant part of the power system. Consequently, tracking the proximity of the power system to an insecure voltage condition has become an important element of any protection and control scheme. The expected time until instability is a critical aspect. There are a few energy management systems including voltage stability analysis function in the real-time environment of control centres, these are based on assumptions (such as off-line models of the system loads) that may lead the system to an insecure operation and/or poor utilization of the resources. Voltage instability is driven by the load dynamics, and investigations have shown that load restoration due to the on-load tap changer (OLTC) action is the main cause of the voltage instability. However, the aggregate loads seen from bulk power delivery transformers are still the most uncertain power system components, due to the uncertainty of the participation of individual loads and shortcomings of the present approaches in the load modeling. In order to develop and implement a true on-line voltage stability analysis method, the on-line accurate modeling of the higher voltage (supply system) and the lower voltage level (aggregate load) based on the local measurements is required. In this research, using the changes in the load bus measured voltage and current, novel methods are developed to estimate the supply system equivalent and to identify load parameters. Random changes in the load voltage and current are processed to estimate the supply system Thevenin impedance and the composite load components are identified in a peeling process using the load bus data changes during a large disturbance in the system. The results are then used to anticipate a possible long-term voltage instability caused by the on-load tap changer operation following the disturbance. Work on the standard test system is provided to validate the proposed methods.The findings in this research are expected to provide a better understanding of the load dynamics role in the voltage stability, and improve the reliability and economy of the system operation by making it possible to decrease uncertainty in security margins and determine accurately the transfer limits." @default.
- W2863492 created "2016-06-24" @default.
- W2863492 creator A5025608043 @default.
- W2863492 date "2005-01-01" @default.
- W2863492 modified "2023-09-24" @default.
- W2863492 title "On-line local load measurement based voltage instability prediction" @default.
- W2863492 cites W1542394013 @default.
- W2863492 cites W2083646602 @default.
- W2863492 hasPublicationYear "2005" @default.
- W2863492 type Work @default.
- W2863492 sameAs 2863492 @default.
- W2863492 citedByCount "3" @default.
- W2863492 countsByYear W28634922018 @default.
- W2863492 crossrefType "dissertation" @default.
- W2863492 hasAuthorship W2863492A5025608043 @default.
- W2863492 hasConcept C119599485 @default.
- W2863492 hasConcept C121332964 @default.
- W2863492 hasConcept C122940293 @default.
- W2863492 hasConcept C127413603 @default.
- W2863492 hasConcept C154945302 @default.
- W2863492 hasConcept C163258240 @default.
- W2863492 hasConcept C165801399 @default.
- W2863492 hasConcept C196226539 @default.
- W2863492 hasConcept C207821765 @default.
- W2863492 hasConcept C2775924081 @default.
- W2863492 hasConcept C2777693866 @default.
- W2863492 hasConcept C41008148 @default.
- W2863492 hasConcept C46529443 @default.
- W2863492 hasConcept C47446073 @default.
- W2863492 hasConcept C57879066 @default.
- W2863492 hasConcept C62520636 @default.
- W2863492 hasConcept C66322947 @default.
- W2863492 hasConcept C89227174 @default.
- W2863492 hasConceptScore W2863492C119599485 @default.
- W2863492 hasConceptScore W2863492C121332964 @default.
- W2863492 hasConceptScore W2863492C122940293 @default.
- W2863492 hasConceptScore W2863492C127413603 @default.
- W2863492 hasConceptScore W2863492C154945302 @default.
- W2863492 hasConceptScore W2863492C163258240 @default.
- W2863492 hasConceptScore W2863492C165801399 @default.
- W2863492 hasConceptScore W2863492C196226539 @default.
- W2863492 hasConceptScore W2863492C207821765 @default.
- W2863492 hasConceptScore W2863492C2775924081 @default.
- W2863492 hasConceptScore W2863492C2777693866 @default.
- W2863492 hasConceptScore W2863492C41008148 @default.
- W2863492 hasConceptScore W2863492C46529443 @default.
- W2863492 hasConceptScore W2863492C47446073 @default.
- W2863492 hasConceptScore W2863492C57879066 @default.
- W2863492 hasConceptScore W2863492C62520636 @default.
- W2863492 hasConceptScore W2863492C66322947 @default.
- W2863492 hasConceptScore W2863492C89227174 @default.
- W2863492 hasLocation W28634921 @default.
- W2863492 hasOpenAccess W2863492 @default.
- W2863492 hasPrimaryLocation W28634921 @default.
- W2863492 hasRelatedWork W1589456741 @default.
- W2863492 hasRelatedWork W1593447802 @default.
- W2863492 hasRelatedWork W1904089337 @default.
- W2863492 hasRelatedWork W1966732384 @default.
- W2863492 hasRelatedWork W1966886993 @default.
- W2863492 hasRelatedWork W1973669415 @default.
- W2863492 hasRelatedWork W1982385493 @default.
- W2863492 hasRelatedWork W1983101552 @default.
- W2863492 hasRelatedWork W1993819629 @default.
- W2863492 hasRelatedWork W2015136534 @default.
- W2863492 hasRelatedWork W2085488593 @default.
- W2863492 hasRelatedWork W2100924510 @default.
- W2863492 hasRelatedWork W2103184064 @default.
- W2863492 hasRelatedWork W2136182699 @default.
- W2863492 hasRelatedWork W2188064844 @default.
- W2863492 hasRelatedWork W2248162364 @default.
- W2863492 hasRelatedWork W2337147971 @default.
- W2863492 hasRelatedWork W2544162450 @default.
- W2863492 hasRelatedWork W93303346 @default.
- W2863492 hasRelatedWork W2571881424 @default.
- W2863492 isParatext "false" @default.
- W2863492 isRetracted "false" @default.
- W2863492 magId "2863492" @default.
- W2863492 workType "dissertation" @default.