Browsing by Author "Ehsani, Mehrdad"
Now showing items 1-20 of 101
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Xu, Jiacong (2021-12-01)This thesis analyzes the connection between the Proportional Integral Derivative (PID) controller and the Particle Swarm Optimization (PSO) Algorithm and proposes two novel methods, PBSv2 and PAA, to enhance the performance ...
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Pool Mazun, Erick Ivan (2019-06-13)In this work, a single-stage three-phase rectifier topology with high-frequency isolation for EV (Electric Vehicle) fast-charging stations is proposed. By using a multipulse approach, low-order harmonics in the input current ...
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Qi, Li (Texas A&M University, 2006-04-12)The electric power systems in U.S. Navy ships supply energy to sophisticated systems for weapons, communications, navigation and operation. The reliability and survivability of a Shipboard Power System (SPS) are critical ...
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Lee, Hyung-Woo (Texas A&M University, 2005-02-17)This dissertation proposes a novel control technique for power density maximization of the brushless DC (BLDC) generator which is a nonsinusoidal power supply system. In a generator of given rating, the weight and size of ...
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An Adaptable Net Zero Model to Accelerate Achieving Global Climate Targets: A Monitored Case Study Moghaddasi, Haleh Station (2022-03-14)With increased efforts toward planning for climate change mitigation and the design of carbon neutral and Net Zero (NZ), this study addresses five key barriers in achieving the targets: (1) the lack of consensus in the ...
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de Morais, Andre Eurico (2016-08-08)Solar energy is arguably the most promising response to the challenge of generating power in a clean and renewable way. However, there are many technical challenges that must be overcome before this alternative becomes ...
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Frank, Nicolas Walter (2012-07-16)In the field of electric machine design, a trend in many applications has been to design machines with increasing torque density. When machines fail to meet torque density requirements or are simply incapable of matching ...
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Wei, Yuan (2020-10-20)This thesis presents a new Halbach-array-based two-phase motor. The motor is based on a 2-pole, 10-segment Halbach cylinder that generates a uniform magnetic field inside. This uniform field simplifies the torque calculation ...
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Kilfoyle, Riley Sparman (2020-07-31)This research into thermal systems builds off of multi-domain energy dynamics theory of Prof. Ehsani to gain a clearer understanding and improved model of thermal energy propagation. A review of the general energy dynamics ...
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Hillhouse, William Jeffrey (Texas A&M University, 2006-10-30)As deregulation of the electric power system in the United States unfolds, many customers are experiencing changes in their billing rate structure. Some face the addition of power factor penalty tariffs, and seek ways to ...
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Nadubettu Yadukumar, Shishir 1986- (2012-12-10)The thesis shows how to achieve bipedal robotic walking on flat-ground, up-slope and rough terrain by using Human-Inspired control. We begin by considering human walking data and find outputs (or virtual constraints) that, ...
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Rahimian, Mina Mashhadi (2012-10-19)Electrical machines are subject to different types of failures. Early detection of the incipient faults and fast maintenance may prevent costly consequences. Fault diagnosis of wind turbine is especially important because ...
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Ehsani, Mehrdad (United States. Patent and Trademark Office; Texas A&M University. Libraries, 1998-12-22)A circuit for controlling power to a capacitive load includes a DC power source coupled in series with an inductor and the capacitive load. The inductor provides for resonant charging of the capacitive load from the DC ...
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Williams, Hunter Matt (2020-03-18)This thesis develops a new approach to the design of Proportional Integral Derivative (PID) controllers, solving an open problem in identifying feasible pole placement for controlled systems that allows for optimization ...
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Kanchari Bavajigari, Sai Kiran (2019-11-07)This first part of the thesis presents a study of the composite system reliability evaluation using a cross-entropy based importance sampling method to improve computational efficiency of sequential Monte Carlo simulation ...
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Eskandari Halvaii, Ali (2012-07-16)This research is focused on designing a new generation of CAD tools that could help a ”hybrid vehicle” designer with the design process to come up with better vehicle configurations. The conventional design process for any ...
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Gay, Sebastien Emmanuel (2009-05-15)Road and rail vehicles and aircraft rely mainly or solely on friction brakes. These brakes pose several problems, especially in hybrid vehicles: significant wear, fading, complex and slow actuation, lack of fail-safe ...
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Bassey, Ogbonnaya (2020-12-01)Electric power systems face the risk of outages due to extreme weather events, cyber-attack, human errors, and other unforeseen circumstances. A power grid that is resilient to these unfortunate events has become a consistent ...
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Bashaireh, Ahmad (2019-11-18)Modern power systems are increasingly relying on switching power converters to operate and control the power flow. This is mainly due to the need for power conditioning with the addition of new and diverse elements such ...
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Shawartamimi, Ali (2023-04-09)Switching Power converters are more prominent and more utilized nowadays than at any other time before; we use power converters for power flow control in large alternating current (AC) grids, for connecting several ...