Optimum Design of BLDC Motor for Cogging Torque Minimization Using Genetic Algorithm and Response Surface Method

Jeon, Mun-Ho; Kim, Dong-Hun; Kim, Chang-Eob

doi:10.5370/jeet.2006.1.4.466

Cited by 26 publications

(5 citation statements)

References 7 publications

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“…2. It should be noted that, in order to minimise the motor losses and maximise the torque per ampere ratio, each phase stator reference current should be in-phase with the corresponding phase back-EMF [29]. As well as, by multiplying a constant coefficient in the amplitude of the stator current harmonics, the motor average torque can be controlled.…”

Section: Reference Current Production Based On Harmonic Injection Blockmentioning

confidence: 99%

Torque ripple reduction of brushless DC motor with harmonic current injection based on integral terminal sliding mode control

Boroujeni¹,

Markadeh

Soltani

et al. 2017

IET Electric Power Applications

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Brushless Harmonic current injection to the stator windings is one of the most effective methods for torque ripple reduction of brushless DC motors. Because of multi harmonic contents of the stator currents, the conventional methods based on rotational reference frame cannot be used to calculate the voltage references for voltage source inverter. sliding mode control (SMC), which has high dynamic response to track a time varying command, can be used to force the arbitrary reference current to the stator windings without transfer the motor currents to the rotational reference frame. However, the main disadvantage of SMC is that the system states cannot reach the equilibrium point in infinite time as well as has a major chattering problem. In this paper, a new control method called integral terminal sliding mode control (ITSMC) is used to overcome these drawbacks. In order to show the robustness and performance of the proposed method, this method is compared with a SMC by some simulation and experimental tests. It is concluded that the dynamic response and robustness of the proposed ITSMC method is higher than SMC and ITSMC is an appropriate method to inject the arbitrary reference current to the motor windings.

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Section: Reference Current Production Based On Harmonic Injection Blockmentioning

confidence: 99%

Torque ripple reduction of brushless DC motor with harmonic current injection based on integral terminal sliding mode control

Boroujeni¹,

Markadeh

Soltani

et al. 2017

IET Electric Power Applications

View full text Add to dashboard Cite

show abstract

“…where e represents a statistical error, which is generally assumed to be the normal distribution with a mean of zero and variance of 2 s [7][8][9][10][11][12][13][14]. Therefore, the response function estimated from the approximation function is expressed in vector form as…”

Section: Response Surface Methodologymentioning

confidence: 99%

“…Accordingly, this factor is not considered to be one that affects dependent variables. Therefore, when performing an ANOVA, it is necessary to remove the factors of which p-value are greater than 0.05 (i.e., the factors that are not significant) sequentially from larger values [7][8][9][10][11][12][13][14].…”

Section: Polynomial Regression Analysismentioning

confidence: 99%

Optimal Design of Ferromagnetic Pole Pieces for Transmission Torque Ripple Reduction in a Magnetic-Geared Machine

Kim¹,

Park²,

Kim³

2016

Journal of Electrical Engineering and Technology

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-This paper derives an effective shape of the ferromagnetic pole pieces (low-speed rotor) for the reduction of transmission torque ripple in a magnetic-geared machine based on a Box-Behnken design (BBD). In particular, using a non-linear finite element method (FEM) based on 2-D numerical analysis, we conduct a numerical investigation and analysis between independent variables (selected by the BBD) and reaction variables. In addition, we derive a regression equation for reaction variables according to the independent variables by using multiple regression analysis and analysis of variance (ANOVA). We assess the validity of the optimized design by comparing characteristics of the optimized model derived from a response surface analysis and an initial model.

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“…As a method of suppressing the cogging torque, skewing is applied to a rotor despite the higher production cost [3]. Besides, an optimization method is also an emerging plan to improve other performance [4].…”

Section: Introductionmentioning

confidence: 99%

Reliability-Based Robust Design Optimization With Kernel Density Estimation for Electric Power Steering Motor Considering Manufacturing Uncertainties

et al. 2015

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Reliability-based robust design optimization (RBRDO) is a notable method to secure the quality and feasibility of performances from uncertainties. In this paper, geometric uncertainties of a stator sheet that can occur during a stamping process are considered as the uncertainty of controllable variables. Then, as the uncertainty of uncontrollable variables, skew angle due to inexact lamination is considered. No researches on the effect of this uncertainty have been performed. To analyze the effects of the uncertainties, the kernel density estimation (KDE) was employed to estimate the distribution because of its convenience, flexibility, and robustness. Then, RBRDO with the KDE is performed and the optimum results are compared with real data measured from manufactured motors.

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Optimum Design of BLDC Motor for Cogging Torque Minimization Using Genetic Algorithm and Response Surface Method

Cited by 26 publications

References 7 publications

Torque ripple reduction of brushless DC motor with harmonic current injection based on integral terminal sliding mode control

Torque ripple reduction of brushless DC motor with harmonic current injection based on integral terminal sliding mode control

Optimal Design of Ferromagnetic Pole Pieces for Transmission Torque Ripple Reduction in a Magnetic-Geared Machine

Reliability-Based Robust Design Optimization With Kernel Density Estimation for Electric Power Steering Motor Considering Manufacturing Uncertainties

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