Thesis (M.S.)--University of Wisconsin--Madison, 1965. / eContent provider-neutral record in process. Description based on print version record. Bibliography: l. [96]-97.

An investigation is made into some aspects of the analysis and design of high order systems. The problems treated are system stabilization, parameter optimization, computation of an optimal controller and parameter sensitivity. The methods developed for solving these problems are applied to a 9ᵗʰ order linearized power system. To stabilize the system, an eigenvalue shift technique is used. Eigensystem sensitivity analysis is applied to determine both the parameter change required and the new eigensystem after the change has been made. A correction method is applied to the new eigensystem for improving accuracy in order that large steps in parameter change may be taken. This method is subsequently used in an optimization procedure for parameter setting to minimize a cost functional of quadratic form. For the computation of an optimal controller, Puri and Gruver's successive approximation method is used in conjunction with a fast recursive method developed for solving each approximation of the Ricatti matrix. The calculation can be initiated by the eigenvalue shifting method to ensure that the system is initially stable. Finally, a time response sensitivity study is made using a method developed for simultaneous sensitivity function determination. This method reduces computation time significantly over the conventional method ⁽⁹⁾ thus enabling the investigation of time response sensitivity to a large number of parameters. The results of the sensitivity study are then applied to the design of a suboptimal controller. / Applied Science, Faculty of / Electrical and Computer Engineering, Department of / Graduate

This thesis is a study of some of the financially important and technically interesting situations which appear in the economic operation of power systems. Static type optimization problems, which arise when a given plant demand is distributed among the running units of that plant, and in thermal power systems, are first considered. For this case, scheduling equations which are valid in the presence of bounds on the plant operating range are derived through the application of Kuhn-Tucker conditions. A dynamic type short-range hydro-thermal problem based essentially according to the currently prevalent formulation of assuming a specified water usage, is extended to include operating range bounds and unit commitment aspects. Pontryagin's maximum principle is found to be useful in obtaining suitable solutions to the extended formulations. For the above dynamic type short-range hydro-thermal problems to be meaningful, the water usage specification should usually be obtained through a careful analysis of long term resource management. With the above view, the overall hydro-thermal economic optimization problem is formulated and the long-range and short-range problems are deduced as its components. This results in a dynamic type long-range component while allowing a static type short-range problem. Among other practical aspects, the stochastic nature of the river flows and the very long and indefinite nature of the period of optimization are taken into account. A mathematical basis for the intuitively appealing concept of water values is developed. As a solution to the long-range problem, an equation which gives the interrelationship of water value functions is derived through the application of the principle of optimality. This equation is shown to be useful in computing water values as a function of reservoir state and time. Finally, complications which arise due to the variation of water head, flow interconnected reservoirs and interruptible consumers are analysed. / Applied Science, Faculty of / Electrical and Computer Engineering, Department of / Graduate

Thesis (M.S.)--California Polytechnic State University, 2010. / Mode of access: Internet. Title from PDF title page; viewed on March 15, 2010. Major professor: Dr. David Braun. "Presented to the faculty of California Polytechnic State University, San Luis Obispo." "In partial fulfillment of the requirements for the degree [of] Master of Science in Electrical Engineering." "March 2010." Includes bibliographical references (p. 65-69).

Not available / text

No description available.

No description available.

Thesis (Ph. D.)--University of Pennsylvania, 1927. / "Reprint from Water-supply paper 579, published by the United States Geological survey, Government printing office, Washington, D.C." Bibliography: p. 43-44.

Thesis (Ph. D.)--Washington State University. / Includes bibliographical references.

Thesis (M.S.)--University of Michigan, 1961.