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Robust Sliding Mode Harmonic Oscillator Suitable for Low Frequencies Parka Kaveh, Ashkan Ashrafi and Yuri B. Shtessel
 

Summary: Robust Sliding Mode Harmonic Oscillator Suitable for Low Frequencies
Parka Kaveh, Ashkan Ashrafi and Yuri B. Shtessel
Department of Electrical and Computer Engineering
The University of Alabama in Huntsville
Key Words: Harmonic Oscillator, Sliding Mode Control, Robustness
AbsfruciSliding Mode Control technique, including
recently developed Integral Sliding Mode Control, is used
to robustly stabilize the amplitude and frequency of the
output of a second-order Harmonic Oscillator system. It
is shown that the output of the proposed configuration is a
sinusoidal signal whose amplitude and frequency are
robust to bounded disturbances. The structure of the
proposed sliding mode controlled oscillator is appropriate
to generate IOW frequency sinusoidal oscillations. A
computer simulation is performed to manifest the
theoretical analysis.
1. INTRODUCTION
Except direct digital frequency synthesizers (DDFS),
which generate sinusoidal waveform by using an open-loop
digital system as a staircase signal [l], the other types of

  

Source: Ashrafi, Ashkan - Department of Electrical and Computer Engineering, San Diego State University

 

Collections: Engineering; Computer Technologies and Information Sciences