Fractional order model for control system and design of
fractional order PIλ Dμ controller(PDF)
[ISSN:1007-449X/CN:23-1 408/TM]
- Issue:
- 2014年03
- Page:
- 85-92
- Research Field:
- Publishing date:
Info
- Title:
- Fractional order model for control system and design of
fractional order PIλ Dμ controller
- Author(s):
- DENG Li-wei; SONG Shen-min; PANG Hui
- Center for Control Theory and Guidance Technology，Harbin Institute of Technology，Harbin 150001，China
- Keywords:
- fractional calculus; fractional order PIλDμcontroller; system modeling; parameter tuning;
performance indicators
- PACS:
- -
- DOI:
- -
- Abstract:
- For the delay performance of the higher order dynamic system model in the process of system analysis
and design，first or second order plus time delay system model are used to make approximations
for it，but the described system accuracy and control performance are reduced because of oversize error of
the model． A new non-integer order plus time delay ( NIOPTD) system model was designed，then the traditional
model and the NIOPTD model were received to take the place of a higher order system，and the
advantages of the NIOPTD system model were given via comparisons． A new method of fractional order
controller parameter tuning in frequency domain was given for the three system models ( first order，second
order system and NIOPTD) ． Simulations results illustrate that the best control performance and robust
stability can be performed as desire by utilizing NIOPTD system model．
Last Update: 2014-11-24