Randall Shaffer
Assistant Professor
- Embry-Riddle University
- College of Engineering/Bldg. 72
- 3200 North Willow Creek Road
- Prescott, AZ 86301
- Telephone: (520)708-6943
- Fax: (520)708-6945
- Email address: shaffer@pr.erau.edu
- URL: http://pr.erau.edu/~shaffer
Key words:
Electric Drives,
Electric Vehicles,
Nonlinear Systems,
Power Electronics,
State Estimation
Other key words:
Variable Structure systems,
sliding mode control,
sliding mode state estimators
Research description:
Sliding mode induction motor controller using a digital signal processor.
Sliding mode controlled dc-dc converters.
Sliding mode brushed-dc motor controller.
Microprocessor-based brushless motor controller.
Sliding mode controlled inverters.
Laboratory facilities:
Power Laboratory
- Digital power analysers (measures average and apparent powers, power factor, source frequency, and voltage and current harmonics.
- Isolation amplifiers for floating voltage measurements
- Variable AC and DC power
- Oscilloscopes
- Digital multimeters
- Digital RCL meters
- Power transformers
- DC/DC converter modules
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