On the Sampling and the Performance Comparison of Controlled LTI Systems

Fekih, Sirine; Sfaihi, Boutheina; Benrejeb, Mohamed

doi:10.14569/ijacsa.2018.090331

Cited by 1 publication

(1 citation statement)

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“…To investigate the relative stability, the phase response should be taken into account. By assuming the phase response of Arduino-based lead compensators are nearly identical to that of the analog type, it is likely to maintain or increase the relative stability of the compensated systems [41].…”

Section: Effects Of Arduino-based Lead/lag Compensatorsmentioning

confidence: 99%

Archives of Electrical Engineering

Dewantoro,

Rizky,

Murtianta

2020

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With the rapid advancement of digital processors, filters have been commonly implemented using microcomputers. In this study, a low-cost and compact Arduino Uno development board was used to realize digital lead and lag compensators. Arduino boards are very affordable. Consequently, they were investigated to see if they were capable of preserving the frequency response of continuous-time compensators. The experiments required a set of equipment including a function generator, an Arduino Uno development board, a PC-based oscilloscope, and a laptop. The signal frequency was varied from 0 to 500 Hz. Two discretization methods were employed, namely bilinear transformation and matched pole-zero mapping. The results showed that an Arduino Uno board can be utilized to implement lead and lag compensators to some extent. The discrete-time compensator preserved the capability of filtering out certain frequencies. The change in DC gain was negligible, however, there was a significant difference in the cut-off frequency and transient slope. For both discretization methods, the frequency responses at high frequency experienced a rippling profile.

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Section: Effects Of Arduino-based Lead/lag Compensatorsmentioning

confidence: 99%