Background: In this paper, fuzzy pole placement control approach is proposed to control the
speed of D.C motor. In this method, state feedback gain is tuned by fuzzy logic.
Methods: In conventional pole placement control, constant gain is considered to insert the poles of
system in the desired place. Therefore, unnecessary effort is appliedto the system, and the system
implementation becomes costly.
In contrast, in fuzzy pole placement control, poles of system alter gradually based on the performance of
system and are settled in desired point causing the system to display apposite performance. In other
words, in conventional pole placement, a determined pair of poles exists, whereas in fuzzy pole
placement method, an area, in which a pair of poles is relocated is obtained. Pair of poles changes its
place based on the recent behavior of the system to have more appropriate manner.
Results: As a result, state feedback gain changes intelligently according to the on-line performance of
system eventuating in acceptable outcomes. Results show that this approach is effectual and sound.