Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 52 for “"control optimization"”.
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Hydroelectric System Analysis and Speed Control Optimization
Made available in DSpace on 2014-12-08T22:24:21Z (GMT). No. of bitstreams: 1 6808272.pdf: 2917420 bytes, checksum: e08c84fb6c901274b105aafcaf033cc8 (MD5) Previous issue date: 1967
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Flow Control Optimization for Improvement of Fan Noise Reduction
… noise reduction by optimizing an existing flow control configuration. The current configuration consisted of a trailing edge Slot with a flow control area of 0.045 in² per inch span with an exit angle of -3.3° with respect to the blade exit angle. Two other flow control configurations …
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Distributed Control, Optimization, and State Estimation for Renewable Power System
… are usually centralized systems, in which the control, operation and monitoring are performed by the centralized control center, e.g., SCADA. However, with the development of renewable energy, power systems are getting more and more distributed. So, it becomes necessary to establish the …
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Readout and control optimization for a high performance MEMS accelerometer
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
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Agent-based ethical decision-making control optimization framework for self-driving vehicles
… decisions made in a model predictive steering controller are highlighted by simulation results of a self-driven vehicle negotiating an obstructed two-lane route with a double yellow line.The value-sensitive design (VSD) iterative process is used to formalize the link between human values and …
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Design and control optimization for high-speed jumping mode Atomic Force Microscope
… to identify the aspects of improvement. Two control algorithms to improve the imaging speed and probe sample interaction force for jumping mode atomic force microscopy operation have been proposed and investigated both in simulation and experiment. A new generation of multi-actuated sample …
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Governor control optimization of hydro power plants using hybrid fuzzy logic and PID control.
Control of hydro power plants has been an issue of concern for researchers; moreover, more emphasis has always been put on governor control which naturally has slower response, but vital in ensuring system stability and elimination of load tracking errors. This thesis studies on ways to use fuzzy …
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Dynamic Proton Exchange Membrane Fuel Cell System Synthesis/Design and Operation/Control Optimization under Uncertainty
… of dynamic system synthesis/design and operation/control highly complex. Typically, the synthesis/design optimization of energy systems is based on a single full load condition at steady state. However, a more comprehensive synthesis/design and operation/control optimization requires taking into …
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The Integration of State Space into the Dynamic Synthesis/Design and Operational/Control Optimization of a PEMFC System
A typical approach to the synthesis/design optimization of energy systems is to only use steady state operation and high efficiency (or low total life cycle cost) at full load as the basis for the synthesis/design. Transient operation is a secondary task to be solved by system and control engineers …
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A Bi-Level Programming Formulation and Heuristic Solution Approach for Traffic Control Optimization in Networks With Dynamic Demand and Stochastic Route Choice
… networks to search for the optimal signal control plan with the consideration of dynamic demand and stochastic route choice. To study the impact of different levels of ITS implementation in a transportation system, this research compares different information updating frequencies. In the …
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Dynamic Synthesis/Design and Operation/Control Optimization Approach applied to a Solid Oxide Fuel Cell based Auxiliary Power Unit under Transient Conditions
A typical approach to the synthesis/design optimization of energy systems is to only use steady state operation and high efficiency (or low total life cycle cost) at full load as the basis for the synthesis/design. Transient operation as reflected by changes in power demand, shut-down, and start-up …
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Towards Morphology-Agnostic Control for Soft Robots
… fact that soft robots have a design-dependent control profile. Thus, existing approaches have relied on human intuition or biomimicry. Co-design has been introduced as an approach to developing soft robots and involves jointly optimizing over the design and control of compliant bodies. An …
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Predictive pre-cooling control for low lift radiant cooling using building thermal mass
… cooling, thermal energy storage and predictive control to achieve lower condensing temperatures, higher evaporating temperatures, and reductions in instantaneous cooling loads by spreading the daily cooling load over time. The LLCS studied in this research is composed of a variable speed chiller …
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Integrated structural design, vibration control, and aeroelastic tailoring by multiobjective optimization
The integrated design of a structure and its control system was treated as a multiobjective optimization problem. Structural mass, a quadratic performance index, and the flutter speed constituted the vector objective function. The closed-loop performance index was taken as the time integral of the …
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INTERPOLATION OF RIGID-BODY MOTION AND GALERKIN METHODS FOR FLEXIBLE MULTIBODY DYNAMICS
… are quite common. For instance, the trajectory optimization of robotic arms and spacecrafts is formulated as a two-point boundary value problem; determination of the periodic dynamic response of helicopter and wind turbine blades is formulated as a periodic boundary value problem; the analysis …
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The effects of shaped piezoceramic actuators on the excitation of beams
… useful tool in designing shapes to meet specific control criteria. An example is given showing how the shape of the actuator can be designed to give superior performance for specific control criteria than a traditional rectangular shape. Two possible actuator shapes are shown for the situation. …
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Modeling, control, and design of hybrid electrical and thermal energy storage systems
… techniques are used to facilitate modeling, control, and design optimization of the energy storage system. Graph-based models capture multi-domain dynamics in a unified framework. A heuristic control strategy is used, which seeks to protect the energy storage elements while maintaining …
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Optimizing roof control using probabilistic techniques in roof failure prediction
… Probabilistic simulation of potential roof control problems allows a designer to test the performance of competing mine layouts against assumed roof conditions. By comparing different roof control plans using the simulation, the option that provides the lowest overall cost can be selected. …
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Optimization of neural network feedback control systems using automatic differentiation
Optimal control problems can be challenging to solve, whether using analytic or numerical methods. This thesis examines the application of an adjoint method for optimal feedback control, which combines various algorithmic techniques into an original numerical method. In the method investigated …
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Parametric study and simulation of microbubble column flotation
… this simulator will be useful for the design, control, optimization and scale-up of column flotation.
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