Nonlinear Control of SPWM Inverter Fed BLDC Motor Using Robust H∞Controller
Journal Title: International Journal of engineering Research and Applications - Year 2018, Vol 8, Issue 7
Abstract
Brushless DC motorsare enhancing an enticing alternative to DC due to their admirable controllability and high efficiency. These motors also have power saving advantages relative to the other types of motors. Various types of control strategies have been illustrated for variable speed AC drives. When those control strategies are applied to the proposed drive, there are certain drawbacks like uncertainty, sensitive to parametric variations etc. The linear control theory is applicable for linear models only. So in this paper nonlinear controller using feedback linearization technique is suggested to transform a nonlinear model into a linear one. Along with this in order to increase the degree of stability and robustness of the system,H∞controller is suggested. The BLDC motor is extensively simulated using MATLAB software for incremental/decremental changes in i) speed corresponding to different frequencies at a constant torque and ii) torque at a constant speed.
Authors and Affiliations
T. V. Subhashini, dr. K. Alice Mary, Dr. K. Ravindra, D. Triveni
Keywords
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- EP ID EP394999
- DOI 10.9790/9622-0807045763.
- Views 152
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