Title:
Design of secondary voltage and stability controls with multiple control objectives

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dc.contributor.advisor Begović, Miroslav M.
dc.contributor.author Song, Yang en_US
dc.contributor.committeeMember Deng, Shijie
dc.contributor.committeeMember Divan, Deepakraj
dc.contributor.committeeMember Harley, Ronald
dc.contributor.committeeMember Lambert, Frank
dc.contributor.committeeMember Shamma, Jeff
dc.contributor.department Electrical and Computer Engineering en_US
dc.date.accessioned 2009-08-26T17:50:13Z
dc.date.available 2009-08-26T17:50:13Z
dc.date.issued 2009-06-01 en_US
dc.description.abstract The purpose of the proposed research is to design a Decentralized Voltage/Stability Monitoring and Control System to counteract voltage violations and the impact of disturbances/contingencies on power system voltage stability. A decentralized voltage and stability control system is designed to coordinate the controls of the local secondary voltage control devices and necessary load shedding without requiring information about the rest of the system. The voltage/stability control can be formulated as a multi-objective optimization problem. The control objectives include, but are not limited to: minimization of system active/reactive losses; maximization of the system stability margin; and minimization of the control actions. The constraints of the optimization problem depend on the specifications of the actual system components. For the first time, margin sensitivities of the control actions are included in the control formulation. The concept of using margin sensitivity to evaluate the post-control load margin is presented as a fast and accurate way to assess potential voltage and stability control options. A system decomposition procedure is designed to define the disturbance-affected zone as an independent control subsystem. A normal constraint algorithm is adopted to identify the most suitable control solution in a shorter timeline than the typical utility voltage-control practice. Both steady-state and dynamic simulations are performed to compare the proposed system with typical utility control practices. en_US
dc.description.degree Ph.D. en_US
dc.identifier.uri http://hdl.handle.net/1853/29714
dc.publisher Georgia Institute of Technology en_US
dc.subject Independent system operator en_US
dc.subject Power system protection and control en_US
dc.subject Voltage stability en_US
dc.subject Optimal power flow en_US
dc.subject Secondary voltage control en_US
dc.subject Multiple-objective optimization en_US
dc.subject.lcsh Electric power system stability
dc.subject.lcsh Mathematical optimization
dc.title Design of secondary voltage and stability controls with multiple control objectives en_US
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.corporatename School of Electrical and Computer Engineering
local.contributor.corporatename College of Engineering
relation.isOrgUnitOfPublication 5b7adef2-447c-4270-b9fc-846bd76f80f2
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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