Abstract
Unlike traditionally studied in time domain, the creep in a piezoelectric actuator is studied in frequency domain. It is modelled as a fractionalorder integrator, identified in frequency domain, and compensated for by connecting with a fractional-order differentiator in serial. It is demonstrated that identification and compensation in frequency domain are much simpler to execute than that in time domain. Experimental results validate the effectiveness of the proposed algorithm and the creep non-linearity reduces by greater than 80%.
| Original language | English |
|---|---|
| Pages (from-to) | 1444-1445 |
| Number of pages | 2 |
| Journal | Electronics Letters |
| Volume | 52 |
| Issue number | 17 |
| DOIs | |
| State | Published - 18 Aug 2016 |
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