Browse > Article
http://dx.doi.org/10.5139/JKSAS.2021.49.4.301

Tacho Pulse Non-uniformity Effects on Pulse Count Method  

Son, Jun-Won (Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.49, no.4, 2021 , pp. 301-309 More about this Journal
Abstract
Pulse count method is the classical reaction wheel speed detection method. In this study, we represent the pulse count method as mathematical equations. Instead of rotation speed, we model the reaction wheel rotation through rotation angle during sampling periods. We verified the effectiveness of the proposed model by comparing the pulse counts variation and averaging method effects from the model and previous research results. Then, we add tacho pulse non-uniformity to this verified model, and examine the errors of pulse count method. We express the measurement error increasement due to non-uniformity as mathematical equations, and also shows the requirement of moving average numbers to offset the measurement errors.
Keywords
Reaction Wheel Speed Measurement; Pulse Count Method; Tacho Pulse Non-uniformity;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Vazquez-Gutierrez, Y., O'Sullivan, D. L. and Kavanagh,, R. C., "Evaluation of three opticalencoder-based speed estimation methods for motion control," The Journal of Engineering, Vol. 2019, No. 17, pp. 4069-4073.   DOI
2 Anuchin, A., Dianov, A. and Briz, F., "Synchronous Constant Elapsed Time Speed Estimation Using Incremental Encoders," Journal IEEE/ASME Transactions on Mechatronics, Vol. 24, No. 4, 2019, pp. 1893-1901.   DOI
3 OH. S.-H. and Yong, K.-L., "Error Analysis of Reaction Wheel Speed Detection Methods due to Non-uniformity of Tacho Pulse Duration," Aerospace Engineering and Technology, Vol. 8, No. 2, 2009, pp. 92-97.
4 Lee, J.-N., Park, S.-H., Heu, S.-J. and Lee, Y.-K., "The Implementation of the Speed Measurement Board for Reaction Wheel on the LEO Satellite using the T, M-Method," Journal of The Korean Society for Aeronautical and Space Sciences, Vol. 40, No. 9, 2012, pp. 827-832.   DOI
5 Kavanagh, R. C., "Improved Digital Tachometer With Reduced Sensitivity to Sensor Nonideality," IEEE Transactions on Industrial Electronics, Vol. 47, No. 4, August 2000, pp. 890-897.   DOI
6 Kavanagh,, R. C., "Performance Analysis and Compensation of M/T-Type Digital Tachometers," IEEE Transactions on Instrumentation and Measurement, Vol. 50, No. 4, August 2001, pp. 965-970.   DOI
7 Lygouras, J. N., Pachidis, T. P., Tarchanidis, K. N. and Kodogiannis, V. S., "Adaptive High-Performance Velocity Evalution Based on a High-Resolution Time to Digital Converter," IEEE Transactions on Instrumentation and Measurement, Vol. 57, No. 9, September 2008, pp. 2035-2043.   DOI
8 Petrella, R., Tursini, M., Peretti, L. and Zigliotto, M., "Speed Measurmenet Algorithms for Low-Resolution Incremental Encoder Equipped Drives: a Comparative Analysis," 2007 International Aegean Conference on Electrical Machines and Power Electronics, September 2007, pp. 780-787.
9 Chen, Y., Yang, M., Long, J., Xu. D. and Blaabjerg, F., "M/T Method based Incremental Encoder Velocity Measurement Error Analysis and Self-Adaptive Error Elimination Algorithm," IECON 2017 -43rd Annual Conference of the IEEE Industrial Electronics Society, Beijing, 2017, pp. 2085-2090.
10 Brugnano, F., Concari. C., Imamovic, E., Savi, F., Toscani, A. and Zanichelli, R., "A Simple and Accurate Algorithm for Speed Measurement in Electric Drives Using Incremental Encoder," IECON 2017 -43rd Annual Conference of the IEEE Industrial Electronics Society, Beijing, 2017, pp. 8551-8556.
11 Tsuji, T., Kobayashi, H., Mizuochi, M. and Ohnishi, K., "A Wide-Range Velocity Measurement Method for Motion Control," IEEE Transactions on Industrial Electronics, Vol. 56, No. 2, February 2009, pp. 510-519.   DOI