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Article Information:
Time Delay Compensation for Tracking Differentiator and Its Application on Phase Sensor
Fengshan Dou, Song Xue and Dapeng Zhang
Corresponding Author: Fengshan Dou
Submitted: June 23, 2012
Accepted: August 28, 2012
Published: February 11, 2013 |
Abstract:
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This study shows the time delay compensation for tracking differentiator and its application on phase sensor. Filtering time delay compensation algorithm for phase sensor of high speed maglev train with Electromagnetic Suspension (EMS) system is studied. Firstly, the structure and functions of the sensor are introduced. Secondly, the reasons for the phase signal distortion are analyzed. Then, a kind of nonlinear Tracking Differentiator (TD) is introduced. The time delay characteristics of the nonlinear TD are studied and the time delay constant is figured out approximately. Then, a compensation algorithm is proposed based on phase forecasting. At last the TD and its compensation algorithms are applied to the phase signal to improve the waveform. The experimental results show that the designed algorithm is effective.
Key words: Maglev train, phase detection, time delay compensation, tracking differentiator, , ,
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Cite this Reference:
Fengshan Dou, Song Xue and Dapeng Zhang, . Time Delay Compensation for Tracking Differentiator and Its Application on Phase Sensor. Research Journal of Applied Sciences, Engineering and Technology, (05): 1515-1520.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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