Paper Info
Title
Non-Integer Order Control of PMSM Drives with Two Nested Feedback Loops.
Abstract
In industrial control applications, the plants are often represented by integer-order models and controlled by proportional-integral-derivative controllers. The control scheme for permanent magnet synchronous motors (PMSM) includes two nested loops, each employing a PI controller: the inner loop is dedicated to control the current, the outer loop is devoted to control the angular speed. The optimum modulus and symmetrical optimum criteria are widely accepted techniques to tune the two PI controllers. However, to obtain improvements, one may think to apply non-integer order controllers. To this aim, if one uses a fractional-order PI (FOPI) controller in the inner loop, the consequent inner feedback system of non-integer order becomes a non-integer order plant in the outer loop. Then, a FOPI controller should be more effective to control a real example of non-integer order plant. This paper proposes an appropriate design approach to obtain performance and robustness specifications by FOPI controllers in both loops. The approach provides analytical formulas to determine the parameters of the controllers, which are characterized by stability, minimum-phase and interlacing properties. The simulation of a real PMSM shows the effectiveness of the approach and could help to increase the confidence in non-integer order controllers.
Year
DOI
Venue
2018
10.1007/978-3-030-17344-9_11
ADVANCES IN NON-INTEGER ORDER CALCULUS AND ITS APPLICATIONS
Keywords
DocType
Volume
Nested loops,Fractional order PI controllers,Permanent magnet synchronous motors,Loop shaping,Optimum modulus,Symmetrical optimum
Conference
559
ISSN
Citations 
PageRank 
1876-1100
0
0.34
References 
Authors
0
2
Name
Order
Citations
PageRank
Paolo Lino1135.62
Guido Maione25412.37