Type of Document Master's Thesis Author Jadric, Ivan Author's Email Address firstname.lastname@example.org URN etd-22198-124235 Title Modeling and Control of a Synchronous Generator With Electronic Load Degree Master of Science Department Electrical and Computer Engineering Advisory Committee
Advisor Name Title Boroyevich, Dushan Committee Chair Lee, Fred C. Committee Member Lindner, Douglas K. Committee Member Keywords
- synchronous generators
- diode rectifiers
Date of Defense 1998-01-05 Availability unrestricted AbstractDesign and analysis of a system consisting of a variable-speed synchronous generator that supplies an active dc load (inverter) through a three-phase diode rectifier requires adequate modeling in both time and frequency domain. In particular, the system's control-loops, responsible for stability and proper impedance matching between generator and load, are difficult to design without an accurate small-signal model. A particularity of the described system is strong non-ideal operation of the diode rectifier, a consequence of the large value of generator's synchronous impedance. This non-ideal behavior influences both steady state and transient performance. This thesis presents a new, average model of the system. The average model accounts, in a detailed manner, for dynamics of generator and load, and for effects of the non-ideal operation of diode rectifier. The model is non-linear, but time continuous, and can be used for large- and small-signal analysis.
The developed model was verified on a 150 kW generator set with inverter output, whose dc-link voltage control-loop design was successfully carried out based on the average model.
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