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 599 for “"Control Strategy"”.
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Systematic control strategy for inverter-based microgrids
… operation without a grid connection. Therefore, control of inverter-based or inverter-dominant systems is gaining a lot of attention while posing different challenges compared to traditional power systems. Conventional droop-based control architectures can provide power-sharing capability, and …
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Torque control strategy for off-road vehicle mobility.
… is to develop an effective torque distribution control strategy to improve both directional dynamics and safety of the vehicle. The developed torque vectoring control strategy can be widely applied to vehicles of two or more axles. In this research work, the application to multi-wheeled combat …
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A hierarchical control strategy for aircraft thermal systems
Aircraft systems present an interesting control problem given the fact that there exist multiple objectives, actuators, and physical dependencies throughout the system. For decades the onboard systems of aircraft have worked in isolation seeking to achieve their goals while giving little to no …
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An optimizing control strategy for milling circuit operation
… than by solely improving the regulatory control performance. This has been the motivation for an increased focus on optimizing control strategies where the set points are adjusted on-line in accordance with an economic criterion. Since plant conditions change, this adjustment needs to be …
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New control strategy for CNC machines via STEP-NC
… improvement in the domain of computer numerical controls (CNC) where G-codes have been in use for more than half a century. STEP-NC brings richer information to CNCs presenting an opportunity for the development of more intelligent, interoperable and informative machining. The research work …
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Experimental and numerical assessment of a tidal turbine control strategy
… generator. However, its power regulation control strategy is unlike the standard methods used in the wind industry. The turbine was designed to limit both power and thrust in high tidal flows through the controlled overspeed of the rotor. This can be achieved with minimal controller …
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Classification of neuromechanical control strategy in a wrist rotation task
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
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Hybrid Electric Vehicle Control Strategy Based on Power Loss Calculations
Defining an operation strategy for a Split Parallel Architecture (SPA) Hybrid Electric Vehicle (HEV) is accomplished through calculating powertrain component losses. The results of these calculations define how the vehicle can decrease fuel consumption while maintaining low vehicle emissions. For a …
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Optimization of the Control Strategy for a Range Extender Vehicle
… Subject of this work is the optimization of the control stratgy for a Plug-In Range Extender in order to decrease CO2 emissions with respect to the regulations. Therefore, the vehicle is equipped with a gasoline combustion engine, a high voltage battery and two electric motors. One electric motor …
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Intelligent and Robust Control Strategy for Improving Microgrids Operation and Stability
… inverter-interfaced DG (IIDG) units. Droop control systems are widely adopted in conventional power systems and the decentralized droop-like control method is the most favorable control system for MGs. However, there are some crucial issues related to the poor performance of droop control in …
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Development of H∞ control strategy for a multi-wheeled combat vehicle
A vehicle dynamics controller for an 8 x 8 heavy combat vehicle utilising both torque vectoring and third and fourth axle steering is propoed. The control scheme is composed of two controllers: a feedforward zero side slip (ZSS) controller actuates the third and fourth axle steering angles and a …
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Offroad autonomous vehicle development and model-based adaptive robust control strategy
… driven by advancements in sensing and control technologies. To operate reliably under severe off-road conditions, a robust and adaptable off-road platform is essential. Off-road environments, in particular, present unique challenges, including low traction, uneven terrain, rapidly …
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A neuromuscular-model based control strategy for powered ankle-foot prostheses
… target torque trajectory is known, and the controller issues commands to follow the trajectory as closely as possible. However, without a methodology to update the desired trajectory in real time, this type of control scheme is limited in that it cannot adapt to externally-applied …
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Improving the control strategy for a four-switch buck-boost converter
… can be highly efficient, new strategies for controlling it could decrease power losses even more. The strategy proposed for this thesis involves the use of level shifted triangle waves and high speed comparators to achieve a narrower buck-boost region than achieved in previous control IC's …
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Modeling and Control Strategy for Capacitor Minimization of Modular Multilevel Converters
… circulating energy, even though a number of control strategies have been introduced to reduce the capacitor voltage ripples. In the present paper, a novel control strategy is proposed by means of harmonic injections in conjunction with gain control to completely eliminate both the line …
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An improved control strategy for wind-powered refrigerated storage of apples
The need for an improved control strategy for the operation of a wind-powered refrigeration system for the storage of apples was investigated. The results are applicable to other systems which employ intermittently available power sources, battery and thermal storage, and an auxiliary, direct …
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Minimum Energy Control Strategy for an Uninhabited Airship with a Moving Gondola
… incremental nonlinear dynamic inversion (INDI) controllers are designed to track a desired trajectory by controlling the position of the gondola and the thrust. The dynamic models are then implemented and simulated in the Matlab/Simulink to evaluate the effectiveness of the controllers in …
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Microgrid Control Strategy Study and Controller Design Based on Model Predictive Control
… and result analyzing, the microgrid coordinated control strategies will be studied in this paper.</p> <p>Firstly, this paper starts from the microgrid operation control mode, respectively establishing the traditional control strategy of simulation for the isolated and connected microgrid. The …
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The development and implementation of process control strategy on a vehicle launch
… challenges of implementing process control plans for a vehicle launch. The author explores the development and implementation of process control plans employing lean philosophies such as Standardization, Built-in-quality, and Continuous Improvement. This thesis is based on the work …
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