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Full-Text Articles in Controls and Control Theory
Design And Control Of High Power Density Motor Drive, Dong Jiang
Design And Control Of High Power Density Motor Drive, Dong Jiang
Doctoral Dissertations
This dissertation aims at developing techniques to achieve high power density in motor drives under the performance requirements for transportation system. Four main factors influencing the power density are the main objects of the dissertation: devices, passive components, pulse width modulation (PWM) methods and motor control methods.
Firstly, the application of SiC devices could improve the power density of the motor drive. This dissertation developed a method of characterizing the SiC device performance in phase-leg with loss estimation, and claimed that with SiC Schottky Barrier Diode the advantage of SiC JFET could benefit the motor drive especially at high temperature. …
Modeling And Analysis Of The Effects Of Pcb Parasitics On Integrated Dc-Dc Converters, Darwin Domingo Fernandez
Modeling And Analysis Of The Effects Of Pcb Parasitics On Integrated Dc-Dc Converters, Darwin Domingo Fernandez
Master's Theses
Load transients are prevalent in every electronic device including semiconductor memory, card readers, microprocessors, disc drives, piezoelectric devices, and digitally based systems. They are capable of producing voltage stress, introducing noise, and degrading device functionality. In order to avoid damage to the device, a feedback control loop is implemented with system compensation to regulate the output voltage deviations by the converter. Because designing compensation networks can be rather complicated, DC-DC converters with integrated feedback control topologies help minimize design time and complexity of converter compensation at the expense of design flexibility. This thesis widens the limitations of an integrated DC-DC …
Bridgeless Active Power Factor Correction Using A Current Fed Push Pull Converter, Jeramie Seth Bianchi
Bridgeless Active Power Factor Correction Using A Current Fed Push Pull Converter, Jeramie Seth Bianchi
Master's Theses
Bridgeless Active Power Factor Correction
Using a Current Fed Push Pull Converter
Jeramie Seth Bianchi
Switched Mode Power Supplies have become increasingly popular for efficient methods of delivering power to an assortment of electronic devices. This thesis proposes a method of using a current fed push pull converter to provide active power factor correction and rectification in a single stage. While most AC-DC converters utilize a bridge rectifier to convert AC-DC and then perform DC-DC conversion, the proposed circuit will utilize its output diodes to perform rectification, thus eliminating the need for a bridge rectifier. This circuit will also …
Off-Grid Photovoltaic System Design Project, Brian Duffy
Off-Grid Photovoltaic System Design Project, Brian Duffy
Electrical Engineering
This project uses the BP SX 150S solar panel to charge a 12 V battery. This battery powers an AIMS 400 W Modified Sine Wave Inverter to provide 120 V RMS AC power to a load of up to 40 W. Inverter efficiency was measured at different load conditions. A control circuit was implemented to prevent overcharging or over-discharging of the battery, by disconnecting it from the panel or the load, respectively. The control circuit turn-on and cutoff voltages were measured versus battery voltage, and the on-resistance of the MOSFET switches was measured for various load currents. A table of …