The Motor Systems Resource Facility (MSRF) at Oregon State University
presently conducts a variety of steady state tests on Motors and Generators, with
ratings of upto 300Hp.(225kW), using a dynamometer. The dynamometer consists of
an induction motor fed by a power electronic converter. A control computer uses a
serial link, to send the desired steady state values of speed or torque to the converter.
The objective of the work of this thesis was the conversion of the existing
control interface, to one that could support programmable dynamic operation. Some
of the capabilities that the resulting system has acquired, include the ability to
simulate a general, predefined torque or speed profile, from a generalised polynomial
function, a sine wave of torque or speed added to a constant offset, and a general
purpose mode which allows the user to specify an atypical profile. The conversion to
dynamic operation, permits the study and laboratory simulation of dynamic effects
like the Sub-Synchronous Resonance phenomenon observed in turbine- generator
sets attached to the power grid, the effect of "tower shadow" on wind power
generation, time-varying load profiles, testing of machines under real world
operating situations etc.
Several tests were performed to ensure that the actual speed/torque profiles
obtained from the machine, corresponded to the reference profiles specified in each
case. Measured performance of specific examples is given. / Graduation date: 1999
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/33740 |
| Date | 24 August 1998 |
| Creators | Rodrigues, Terence Keith |
| Contributors | Wallace, Alan K. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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