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Design of Low-cost High-accuracy Microcontroller-based Resolver Emulator

Limpisathian, Pongpachara
http://rave.ohiolink.edu/etdc/view?acc_num=akron1385999239

Abstract Details

2013, Master of Science, University of Akron, Electrical Engineering.
This thesis presents an architecture and analysis of a resolver emulator using a microcontroller and a multiplying digital-to-analog converter. The proposed resolver emulator architecture is designed to achieve output accuracy similar to commercially available resolver emulators but at a lower cost and complexity. A microcontroller is used to compute and store the sine and cosine representations of the digital input positions and a multiplying digital-to-analog converter is used to modulate the reference carrier with the sine and cosine representations into corresponding resolver emulator outputs. The pertinent design parameters are the number of digital input position bits, the number of multiplier bits, and the rate at which updates are communicated to the multiplying digital-to-analog converter. Simulation results show an improvement of nearly 20 arcminutes in the total error is observed as the number of multiplier bits is increased from 8 to 14 bits when the number of digital input bits is 16. The update rate should be at least 360 times larger than the rate of shaft rotation. An experimental test bench is constructed to gain further insight into the non-idealities of the resolver emulator. The results show that the implemented resolver emulator with 16 digital input position bits, 14 multiplier bits, and an update rate of 16 kHz realized an average error magnitude of approximately 32 arcminutes. The packaging and design of the analog backend can be improved to eliminate noise and allow an output accuracy of within 10 arcminutes.
Joan Carletta, Dr. (Advisor)
Kye-Shin Lee, Dr. (Advisor)
Robert Veillette, Dr. (Committee Member)
117 p.
Electrical Engineering

Recommended Citations

Citations

  • Limpisathian, P. (2013). Design of Low-cost High-accuracy Microcontroller-based Resolver Emulator [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1385999239

    APA Style (7th edition)

  • Limpisathian, Pongpachara. Design of Low-cost High-accuracy Microcontroller-based Resolver Emulator. 2013. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1385999239.

    MLA Style (8th edition)

  • Limpisathian, Pongpachara. "Design of Low-cost High-accuracy Microcontroller-based Resolver Emulator." Master's thesis, University of Akron, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1385999239

    Chicago Manual of Style (17th edition)

akron1385999239
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© 2013, some rights reserved.Creative Commons License Design of Low-cost High-accuracy Microcontroller-based Resolver Emulator by Pongpachara Limpisathian is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Akron and OhioLINK.