EFOSMO
EFOSMO is an abbreviation for encoderless full-order sliding-mode observer.
It is used to estimate the non-measurable variables in drive implementing the encoderless control method.
In model-based observer methods, mostly the estimated speed is necessary feedback for the observer, such as Model Reference Adaptive System (MRAS)[1] and Full order Sliding mode observer (FOSMO).[2] Usually, the speed calculation is the last step of the estimation, which means the cumulative estimation error will be injected into the observer. To reduce the influence of the estimated speed, an EFOSMO is proposed.[3] By considering the observer in a 'DQ' frame, the observer does not need the results of the calculated speed anymore, which means the erratic injection by the calculated speed is removed from the observation system.[citation needed]
References
- ↑ Wang, Fengxiang; Chen, Zhe; Stolze, Peter; Stumper, Jean-Francois; Rodríguez, José; Kennel, Ralph (2013-10-30). "Encoderless Finite-State Predictive Torque Control for Induction Machine With a Compensated MRAS". IEEE Transactions on Industrial Informatics. 10 (2): 1097–1106. doi:10.1109/TII.2013.2287395. ISSN 1941-0050. Unknown parameter
|s2cid=ignored (help) - ↑ Lascu, C.; Boldea, I.; Blaabjerg, F. (2004-08-02). "Variable-structure direct torque control - a class of fast and robust controllers for induction machine drives". IEEE Transactions on Industrial Electronics. 51 (4): 785–792. doi:10.1109/TIE.2004.831724. ISSN 1557-9948. Unknown parameter
|s2cid=ignored (help) - ↑ Wang, Fengxiang; Zhang, Zhenbin; Davari, S. Alireza; Fotouhi, Reza; Arab Khaburi, Davood; Rodríguez, José; Kennel, Ralph (2014-04-14). "An Encoderless Predictive Torque Control for an Induction Machine With a Revised Prediction Model and EFOSMO". IEEE Transactions on Industrial Electronics. 61 (12): 6635–6644. doi:10.1109/TIE.2014.2317140. ISSN 1557-9948. Unknown parameter
|s2cid=ignored (help)
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