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An Online Observer for Minimization of Pulsating Torque in SMPM Motors.

Roșca L, Duguleană M - PLoS ONE (2016)

Bottom Line: Either the motor design or the motor control needs to be improved in order to minimize the periodic disturbances.The compensating signal is identified and added as feedback to the control signal of the servo motor.Compensation is evaluated for different values of the input signal, to show robustness of the proposed method.

View Article: PubMed Central - PubMed

Affiliation: Faculty of Engineering, University "Lucian Blaga" of Sibiu, Sibiu, Romania.

ABSTRACT
A persistent problem of surface mounted permanent magnet (SMPM) motors is the non-uniformity of the developed torque. Either the motor design or the motor control needs to be improved in order to minimize the periodic disturbances. This paper proposes a new control technique for reducing periodic disturbances in permanent magnet (PM) electro-mechanical actuators, by advancing a new observer/estimator paradigm. A recursive estimation algorithm is implemented for online control. The compensating signal is identified and added as feedback to the control signal of the servo motor. Compensation is evaluated for different values of the input signal, to show robustness of the proposed method.

No MeSH data available.


Second order IIR filter.
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pone.0153255.g008: Second order IIR filter.

Mentions: The design technique used to implement the IIR filter is based on Butterworth’s work [44]. This approach concludes in a maximally flat IIR filter. For this reason, the only design parameters are the cutoff frequency and the filter order. For designing a band-pass filter with pass band w1 < w < w2, minimum order is 2. The filter makes use of two previous inputs x(n−1) and b2x(n−2) and two previous outputs y(n−1) and y(n−2). The filter structure is presented in Fig 8.


An Online Observer for Minimization of Pulsating Torque in SMPM Motors.

Roșca L, Duguleană M - PLoS ONE (2016)

Second order IIR filter.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4835102&req=5

pone.0153255.g008: Second order IIR filter.
Mentions: The design technique used to implement the IIR filter is based on Butterworth’s work [44]. This approach concludes in a maximally flat IIR filter. For this reason, the only design parameters are the cutoff frequency and the filter order. For designing a band-pass filter with pass band w1 < w < w2, minimum order is 2. The filter makes use of two previous inputs x(n−1) and b2x(n−2) and two previous outputs y(n−1) and y(n−2). The filter structure is presented in Fig 8.

Bottom Line: Either the motor design or the motor control needs to be improved in order to minimize the periodic disturbances.The compensating signal is identified and added as feedback to the control signal of the servo motor.Compensation is evaluated for different values of the input signal, to show robustness of the proposed method.

View Article: PubMed Central - PubMed

Affiliation: Faculty of Engineering, University "Lucian Blaga" of Sibiu, Sibiu, Romania.

ABSTRACT
A persistent problem of surface mounted permanent magnet (SMPM) motors is the non-uniformity of the developed torque. Either the motor design or the motor control needs to be improved in order to minimize the periodic disturbances. This paper proposes a new control technique for reducing periodic disturbances in permanent magnet (PM) electro-mechanical actuators, by advancing a new observer/estimator paradigm. A recursive estimation algorithm is implemented for online control. The compensating signal is identified and added as feedback to the control signal of the servo motor. Compensation is evaluated for different values of the input signal, to show robustness of the proposed method.

No MeSH data available.