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 41 for “"Transfer capability"”.
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Available transfer capability for electric power markets : a critical appraisal
Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.
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Validation of Conjugate Heat-Transfer Capability for Water- Cooled High-Speed Flows
<p>A FORTRAN conduction/convection heat transfer module named FOGO (meaning fire in Portuguese) has been developed to perform the conjugate heat transfer analyses with existing flow solvers. In this work, FOGO is coupled with TBD and WIND-US flow solvers. WIND-US is a well validated flow solver …
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Investigation of the application of UPFC controllers for weak bus systems subjected to fault conditions. An investigation of the behaviour of a UPFC controller: the voltage stability and power transfer capability of the network and the effect of the position of unsymmetrical fault conditions.
… done on the UPFC. However, the extent of UPFC capability, connected to the weakest bus in maintaining the power flows under fault conditions, not only in the line where it is installed, but also in adjacent parallel lines, remains to be studied. In the literature, it has normally been assumed …
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Line-limit-preserving power system equivalents
… of equivalent lines, which may result in the transfer capability of the equivalent case differing significantly from that of the original case. Hence, power system equivalents have not been used for studies regarding line limits such as optimal power flow, security constrained optimal power …
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Low frequency ac transmission for power systems
… at 50 or 60 Hz, or high voltage dc (HVDC) to transfer bulk power. The HVAC system is designed to operate at a high voltage level to reduce losses and increase bulk power transfer. This method is limited, however, by the constraints of installed transmission overhead lines, such as voltage …
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A Framework for Congestion Management Analysis
We illustrate the capability of the framework with several application examples. We use the framework to quantify the substitutability of a generation resource addition and a transmission transfer capability enhancement for congestion relief. We also apply the framework to the study of the revenue …
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Objective determination of optimal power line designs
… lines are required to meet criteria for load and transfer capability as specified by system planners which results in many different line design solutions. The decision as to which solution to adopt and construct is difficult if a subjective method is used. The hypothesis proposed is thus as …
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An exiplicit damping sensitivity expression for power system stabilizers applications in power systems
… the stability of the system and limit its power transfer capability. Power System Stabilizers (PSS) are widely used to enhance the damping of electromechanical oscillatory modes. Conventional methods to tune power system stabilizers attempt to provide the required magnitude/phase shift …
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A doubly-fed machine for propulsion applications
… terminals, an analysis of the power handling capability of different converters for rectifying the power from the transformer for use with the electric machine is performed. A half bridge, full bridge, asymmetrical PWM half bridge, and asymmetrical PWM full bridge converter are all examined in …
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Predicting mechanical performance of adhesively bonded joints based on acousto-ultrasonic evaluation and geometric weighting
… have been used to evaluate the stress transfer capability of modified lap shear joints. Knowledge of the stress distribution in the joint has provided a means of identifying critical areas of interest in the joint. The adhesively bonded composite specimens were mechanically tested and …
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Design of a Control System for Multiple Autonomous Ground Vehicles to Achieve a Self Deployable Security Perimeter
… nodes to calculate distance and using the data transfer capability to allow each vehicle to develop a table of relative positions. These relative positions are used to create a potential field that results in an absolute minimum at the vehicles desired position. All vehicles are numbered …
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6.78MHz Omnidirectional Wireless Power Transfer System for Portable Devices Application
Wireless power transfer (WPT) with loosely coupled coils is a promising solution to deliver power to a battery in a variety of applications. Due to its convenience, wireless power transfer technology has become popular in consumer electronics. Thus far, the majority of the coupled coils in these …
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Impedance Characterization and Modeling of Subcellular to Micro-Sized Au, Pt, TiN, and ITO Electrodes With PEDOT:PSS-Coating For Bioelectrical Interfaces
… coated electrodes have greater faradaic charge transfer capability and capacitive coupling compared to their uncoated counterparts. At D = 10-200 µm, PEDOT:PSS coating reduces the electrode interfacial impedance at 1 kHz by up to ×101.6 while at D > 200 µm, the effect is lessened due to …
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On-Chip Isotropic Microchannels for Cooling Three Dimensional Microprocessors
… oxide deposition. The micro-fin channels heat transfer characteristics are similar to previously published channel designs by being capable of removing 185 W/cm2 before the junction temperatures active elements exceed 85°C. To examine the heat transfer characteristics of this proposed on-chip …
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Experimental Study of Capillary-Assisted Solution Wetting And Heat Transfer Using A Micro-Scale, Porous-Layer Coating On Horizontal-Tube, Falling-Film Heat Exchanger
… systems to desalination due to their high heat transfer coefficients with low liquid inventory. However, the problem of partial solution wetting severely deteriorates the heat transfer capability of the falling-film evaporators. Therefore, an experimental study was conducted to investigate the …
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Adaptive digital distance protection for series compensated transmission lines
… cost effective method of enhancing the power transfer capability of an existing or proposed interconnection. E. H. V. lines employing series capacitors however, pose difficult problems for the line protection relays, not encountered with plain feeders. One important cause of these problems is …
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Internet-based Wide Area Measurement Applications in Deregulated Power Systems
… power system, state estimation and Total Transfer Capability (TTC) calculations. As a first step for building this national transmission grid picture, WAIS and the level of information sharing of the state estimation calculations have been discussed. WAIS impacts to the TTC calculations …
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Microjet impingement cooling of high power-density electronics
… of the device. In this work, the high heat transfer capability of microjet impingement was leveraged to bring cooling directly to the backside of the electronic device. Previous experimental studies characterized the effects of geometrical factors, such as diameter, pitch, and standoff, on …
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Importance sampling simulation of free-space optical APD pulse position modulation receivers
… requirements are combined with increased data transfer capability over long distances. Ultimately, the design and implementation of free-space optical communication systems is dependent on suitable analysis of the link. The analysis of these systems is difficult due to the complicated …
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DESIGN OF A MULTI DSP SYSTEM FOR IMAGE PROCESSING
… with message passing for more efficient data transfer with sychronisation. This integration gives rise to a message based communication method that is advantageous and efficient in situations where there are known communication patterns such as in image processing. Messages are exchanged …
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