Dynamic Bifurcations in a Power System Model Exhibiting Voltage Collapse

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dc.contributor.authorAbed, Eyad H.en_US
dc.contributor.authorAlexander, James C.en_US
dc.contributor.authorWang, H.en_US
dc.contributor.authorHamdan, Anan M. A.en_US
dc.contributor.authorLee, Hsien-Chiarnen_US
dc.contributor.departmentISRen_US
dc.date.accessioned2007-05-23T09:50:17Z
dc.date.available2007-05-23T09:50:17Z
dc.date.issued1992en_US
dc.description.abstractDynamic bifurcations, including Hopf and period-doubling bifurcations, are found to occur in a power system dynamic model recently employed in voltage collapse studies. The occurrence of dynamic bifurcations is ascertained in a region of state and parameter space linked with the onset of voltage collapse. The work focuses on a power system model studied by Dobson and Chiang (1989). The presence of the dynamic bifurcations, and the resulting implications for dynamic behavior, necessitate a re- examination of the role of saddle node bifurcations in the voltage collapse phenomenon. The bifurcation analysis is performed using the reactive power demand at a load bus as the bifurcation parameter. Due to numerical ill-conditioning, a reduced-order model is employed in some of the computations. It is determined that the power system model under consideration exhibits two Hopf bifurcations in the vicinity of the saddle node bifurcation. Between the Hopf bifurcations, i.e., in the "Hopf window," period-doubling bifurcations are found to occur. Simulations are given to illustrate the various types of dynamic behaviors associated with voltage collapse for the model. In particular, it is seen that an oscillatory transient may play a role in the collapse.en_US
dc.format.extent679173 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/5209
dc.language.isoen_USen_US
dc.relation.ispartofseriesISR; TR 1992-26en_US
dc.subjectpower systemsen_US
dc.subjectstabilityen_US
dc.subjectvoltage collapseen_US
dc.subjectbifurcationen_US
dc.subjectoscillationsen_US
dc.subjectchaosen_US
dc.subjectIntelligent Servomechanismsen_US
dc.titleDynamic Bifurcations in a Power System Model Exhibiting Voltage Collapseen_US
dc.typeTechnical Reporten_US

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