Synchronous reluctance machine geometry optimisation through a genetic algorithm based technique

Ruba, Mircea; Jurca, Florin Nicolae; Czumbil, Levente; Micu, Dan D.; Marțiș, Claudia; Polycarpou, Alexis; Rizzo, R.

doi:10.1049/iet-epa.2017.0455

Cited by 27 publications

(15 citation statements)

References 42 publications

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“…13 So we need an iterative scheme for decision making called optimization technique. Optimization is performed for each design using GA. To maximize the average torque and minimize the torque ripple, a general fitness function has been given based on Ruba et al 14 and Pellegrino et al 15 and is used in the following format:…”

Section: Methods Of Optimizationmentioning

confidence: 99%

“…So we need an iterative scheme for decision making called optimization technique. Optimization is performed for each design using GA. To maximize the average torque and minimize the torque ripple, a general fitness function has been given based on Ruba et al and Pellegrino et al and is used in the following format:

italicFitness function ((), FF) = ({}, \begin{array}{l} T_{cal} \times ((), 100 - \frac{true}{normalΔ T}) / 100 & normalΔ T \leq 5 % \\ T_{cal} \times ((), 100 - \frac{true}{normalΔ T}) / 100 & 5 % < normalΔ T \leq 10 % \\ T_{cal} \times ((), 100 - normalΔ T) / 100 & 10 % < normalΔ T \leq 20 % \\ T_{cal} \times ((), 100 - normalΔ T) / 100 & normalΔ T > 20 % \end{array}) .

…”

Section: Overview Of Rotor Structuresmentioning

confidence: 99%

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Single‐phase direct‐on‐line synchronous motor for a specific application in comparison with an induction motor

Ganesan

Lenin

2019

Int Trans Electr Energ Syst

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Summary The efficiency of the motor is of paramount importance during selection and operation as well as energy consumption. In countries like India, international efficiency class (IE2) is versatile in use. Prominent efficiency improvements can produce very large energy savings across the country. Induction motors (IMs) are widely used for pump applications in India. IM exhibits high rotor (I2R) losses due to the presence of rotor current. This results in less efficient, more energy consumption compared with energy‐efficient motors. Energy‐efficient motor such has single phase direct‐on‐line synchronous reluctance motor (DOL‐SynRM) would be a right alternative for IM due to the absence of rotor current. DOL‐SynRM has been designed, optimized, and tested for a centrifugal pump application. Initially, single phase SynRM with capacitor start and capacitor run is modeled using equivalent circuit parameters and simultaneously simulated using MATLAB. The machine parameters like rib width, length, and thickness are optimized using genetic algorithm technique. The optimized rotor structures are taken to numerical analysis platform for performance prediction. The flux distribution, moment of inertia, air gap flux density, the effect on the inductances, starting torque, average torque, and torque ripple are thoroughly investigated using this analysis. The high‐efficiency rotor structure is fabricated and configured with a centrifugal pump. Experimental results reveal that the overall system efficiency has been improved compared with the existing induction motor. Moreover, thermal analysis is carried out for two types of frame structures (conventional and proposed) to study the hot spot in the proposed motor.

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Section: Methods Of Optimizationmentioning

confidence: 99%

italicFitness function ((), FF) = ({}, \begin{array}{l} T_{cal} \times ((), 100 - \frac{true}{normalΔ T}) / 100 & normalΔ T \leq 5 % \\ T_{cal} \times ((), 100 - \frac{true}{normalΔ T}) / 100 & 5 % < normalΔ T \leq 10 % \\ T_{cal} \times ((), 100 - normalΔ T) / 100 & 10 % < normalΔ T \leq 20 % \\ T_{cal} \times ((), 100 - normalΔ T) / 100 & normalΔ T > 20 % \end{array}) .

…”

Section: Overview Of Rotor Structuresmentioning

confidence: 99%

Single‐phase direct‐on‐line synchronous motor for a specific application in comparison with an induction motor

Ganesan

Lenin

2019

Int Trans Electr Energ Syst

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“…The cost function is the function whose minimization prompts finding the finest values of its arguments . In this work, fitness function based on another literature is used in the following setup.

italicFF = ({},, \begin{matrix} T_{cal} \times ((), 100 - \frac{T_{italicripple}}{4}) / 100 & T_{ripple} \leq 5 % \\ T_{cal} \times ((), 100 - \frac{T_{italicripple}}{2}) / 100 & 5 % < T_{ripple} \leq 10 % \\ T_{cal} \times ((), 100 - T_{ripple}) / 100 & 10 % < T_{ripple} \leq 20 % \\ T_{cal} \times ((), 100 - T_{ripple}) / 100 & T_{ripple} > 20 % \end{matrix}),

where T cal and T ripple are calculated average torque and determined torque ripple, respectively.…”

Section: Rotor Structures—an Overviewmentioning

confidence: 99%

Self‐start synchronous reluctance motor new rotor designs and its performance characteristics

Ganesan

Lenin

2019

Int Trans Electr Energ Syst

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Summary Self‐start (often called line start) synchronous reluctance motor (a type of synchronous motor) designed with different rotor structures have been analyzed and compared. The torque, output power, rotor mass, and efficiency are calculated through theoretical study. A genetic algorithm is performed to attain optimal machine parameters. The flux distribution, effect on the inductances, starting torque, average torque, power factor, efficiency, and torque ripple are completely examined by the numerical study. The energy consumption comparison of self‐start synchronous reluctance motor and induction motor are calculated. Further, a study on the effects of end‐ring resistance is discussed for starting and steady‐state conditions. Experimental results reveal that the fabricated high efficient rotor structure is closely correlated with the numerical and theoretical studies.

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“…Otherwise, light models are successfully adopted in preliminary performance estimation in order to reduce the computational burden in the optimization steps [4], [5].…”

Section: Introductionmentioning

confidence: 99%

A Robust Design Methodology for Synchronous Reluctance Motors

Credo

Fabri

Villani

et al. 2020

IEEE Trans. Energy Convers.

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The improvement of the robustness of the performance of electrical machines in presence of neglected features, such as manufacturing tolerances and deviations in material properties and parameters, is increasingly demanded. The available optimization procedures do not account for manufacturing tolerances, leaving the decision process incomplete. The paper proposes a methodology for the selection of the more robust design towards manufacturing tolerances among the best candidates, detected by an optimization procedure. Statistical tools for tolerance analysis and worst-case analysis are discussed and adopted for the scope. The proposed methodology is used to select a robust design with respect to torque ripple deviations due to geometric tolerances in the laminations of a Synchronous Reluctance Motor with fluid shaped barriers. The statistical performance analysis and the worst-case analysis provide an estimation of the performance deterioration in the presence of the tolerances in the manufacturing process.

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Synchronous reluctance machine geometry optimisation through a genetic algorithm based technique

Cited by 27 publications

References 42 publications

Single‐phase direct‐on‐line synchronous motor for a specific application in comparison with an induction motor

Single‐phase direct‐on‐line synchronous motor for a specific application in comparison with an induction motor

Self‐start synchronous reluctance motor new rotor designs and its performance characteristics

A Robust Design Methodology for Synchronous Reluctance Motors

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