Current Search: Mathematical optimization (x)
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Title
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Optimization Analysis of a Simple Position Control System.
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Creator
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Cannon, Arthur G., Towle, Herbert C., Engineering
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Abstract / Description
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Florida Technological University College of Engineering Thesis; One of the problem areas of modern optimal control theory is the definition of suitable performance indices. This thesis demonstrates a rational method of establishing a quadratic performance index derived from a desired system model. Specifically, a first order model is used to provide a quadratic performance indix for which a second order system is optimized. Extension of the method to higher order systems, while requiring more...
Show moreFlorida Technological University College of Engineering Thesis; One of the problem areas of modern optimal control theory is the definition of suitable performance indices. This thesis demonstrates a rational method of establishing a quadratic performance index derived from a desired system model. Specifically, a first order model is used to provide a quadratic performance indix for which a second order system is optimized. Extension of the method to higher order systems, while requiring more computations, involves no additional theoretical complexities.
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Date Issued
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1972
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Identifier
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CFR0012011, ucf:53085
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Format
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Document (PDF)
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PURL
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http://purl.flvc.org/ucf/fd/CFR0012011
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Title
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OPTIMAL UPFC CONTROL AND OPERATIONS FOR POWER SYSTEMS.
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Creator
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Wu, Xiaohe, Qu, Zhihua, University of Central Florida
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Abstract / Description
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The content of this dissertation consists of three parts. In thefirst part, optimal control strategies are developed for UnifiedPower Flow Controller (UPFC) following the clearance of faultconditions. UPFC is one of the most versatile Flexible ACTransmission devices (FACTs) that have been implemented thus far.The optimal control scheme is composed of two parts. The first isan optimal stabilization control, which is an open-loop `Bang'type of control. The second is an suboptimal damping...
Show moreThe content of this dissertation consists of three parts. In thefirst part, optimal control strategies are developed for UnifiedPower Flow Controller (UPFC) following the clearance of faultconditions. UPFC is one of the most versatile Flexible ACTransmission devices (FACTs) that have been implemented thus far.The optimal control scheme is composed of two parts. The first isan optimal stabilization control, which is an open-loop `Bang'type of control. The second is an suboptimal damping control,which consists of segments of `Bang' type control with switchingfunctions the same as those of a corresponding approximate linearsystem. Simulation results show that the proposed control strategyis very effective in maintaining stability and damping outtransient oscillations following the clearance of the fault. Inthe second part, a new power market structure is proposed. The newstructure is based on a two-level optimization formulation of themarket. It is shown that the proposed market structure can easilyfind the optimal solutions for the market while takeing factorssuch as demand elasticity into account. In the last part, amathematical programming problem is formulated to obtain themaximum value of the loadibility factor, while the power system isconstrained by steady-state dynamic security constraints. Aniterative solution procedure is proposed for the problem, and thesolution gives a slightly conservative estimate of the loadibilitylimit for the generation and transmission system.
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Date Issued
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2004
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Identifier
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CFE0000052, ucf:46122
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Format
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Document (PDF)
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PURL
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http://purl.flvc.org/ucf/fd/CFE0000052
