Does the HOSM provide good research opportunities or has it become stagnated?
I have conducted many researches in sliding mode control method. The researches of sliding mode control are focused on reducing chattering phenomenon, error steady state, and minimizing reaching time. I have employed several methods, which are Optimal Sliding Mode, Sliding Mode Control with PI Sliding Surface, and Adaptive Sliding Mode.. Furthermore, research on SMC also deals with uncertainty parameters.. About High Order Sliding Mode control, would you give me more explanations?
just like you said.. HOSM (higher order sliding mode control) is also one of the techniques to tackle chattering.. but i was wondering if it is worth investing my time in for the control of induction drive or should i look for another control algorithms. thanks for your interest though.
There also has been some ongoing research on reduction of steady state using integral augmentation.Model predictive and fuzzy logic combination with sliding mode has been receiving many attention as well.
the recent works concernes the combination of HSMC and Adaptive type-2 fuzzy control to obtain their advantages, and in some techniques we use also integral sliding mode control to ensure a finite time convergence (defined by the designer).
ohh.. i see.. do you intend to control induction motor afterall. First of all, induction motor is nonlinear plant, which has couple characteristics, so that we have to make it decouple by using Direct Torque Control or Field Oriented Control.. what variable that you want to control?
I need to control the speed and the torque.. Most importantly the ripple coming in the torque due to standard dtc is annoying..
to control the speed IFOC is more interesting, Torque you can use DTC, there is several works using Fuzzy logic to reduce the torque ripples.
Effectivelly and the classical problem of chattering is resolved using high order sliding mode control,
for example: https://www.researchgate.net/publication/224256925_Higher_order_sliding_fuzzy_type-2_interval_control_for_SISO_uncertain_nonlinear_systems?ev=prf_pub
Conference Paper Higher order sliding fuzzy type-2 interval control for SISO ...
There is a technique called globally fast terminal sliding mode control that eliminates chatter and solves the system in a finite-time. I however would use finite-time control without the use of any type of sliding mode control.
Have a look at the proceedings of VSS 2012 conference that we had organised in January 2012. You will get a good idea of all possible future directions in all aspects of SMC.
http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=6156578
Further, you can also have a look at the edited collection on the topics of HOSM, SMO, SMD etc, published in Apr. 2013 by Springer-Verlag.
http://link.springer.com/book/10.1007/978-3-642-36986-5/page/1
We have worked recently in designing sliding-mode control for the vaccination function of epidemic models. I am uploading a paper.
our team have about more than 80 papers related to sliding mode controller and fuzzy logic with application to robot manipulator, continuum robot, IC engine and 3-D motor. you can follow these papers in research gate/ academia education
The following books: "Modern Sliding Mode Control Theory: New Perspectives and Application" and "Advances in Sliding Mode Control" provide a good overview about the new trends in Sliding Mode Control.
http://www.springer.com/engineering/robotics/book/978-3-540-79015-0.
http://www.springer.com/engineering/control/book/978-3-642-36985-8
The recent research directions are mainly focused on , optimized computational time, new paradigms for chattering reduction other than higher order SMC, applications and challenges with real time implementation.
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