Multiobjective electric machine optimization for highest reliability demands

Bramerdorfer, Gerd

doi:10.30941/cestems.2020.00011

Cited by 10 publications

(3 citation statements)

References 32 publications

(29 reference statements)

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“…To analyze the role of flexibility resources in improving the economic operation, scenery consumption and low carbon operation of IES, three different scenarios are set up for comparative analysis, and the diversity of flexibility resources in each scenario is gradually expanded [4] .…”

Section: Scenario Settingmentioning

confidence: 99%

Low Carbon Operation Optimization Study of Integrated Energy Systems Considering Interruptible Loads

Zhang

Chang

et al. 2023

J. Phys.: Conf. Ser.

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Aiming at the consumption of renewable energy, researched controllable load mechanisms and energy storage regulation strategies in an electric-thermal coupled network, and a comprehensive flexible resource model was constructed to optimize the low-carbon operation of the system. Firstly, analyzed the industrial load regulation mechanism of differentiated layout in the regional power grid. Based on the electric-thermal coupled system in the urban energy grid, the regulation model of controllable load and electric/thermal energy storage was established. Then a comprehensive benefit model was constructed with an economic cost, wind and solar usage, and carbon emissions as indicators. Proposed a carbon emission flow topology to describe the carbon emission flow information attached to the energy flow. Finally, combined with the IEEE 33-node distribution network and 45-node heat network coupling system, the improvement effect of the multiple flexible resource response on the comprehensive benefits of the system was analyzed. And the carbon emission flow process of the electricity-thermal network in the typical scenario was visually displayed through topology. The results show that exploring flexible resources can improve the consumption margin of wind and solar energy in the integrated energy system, which verifies the rationality and effectiveness of the proposed method.

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Section: Scenario Settingmentioning

confidence: 99%

Low Carbon Operation Optimization Study of Integrated Energy Systems Considering Interruptible Loads

Zhang

Chang

et al. 2023

J. Phys.: Conf. Ser.

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show abstract

“…When creating a reliable design model, it is important to reduce the necessary calculations and appropriately combine the parameters. Therefore, accurate models can be obtained with different algorithms in the design optimization process [17]. For hybrid electric vehicles, parameters such as power, high efficiency, volume, and weight are important in the design of electric machines.…”

Section: Introductionmentioning

confidence: 99%

The Design of the Outer-Rotor Brushless DC Motor and an Investigation of Motor Axial-Length-to-Pole-Pitch Ratio

Tosun

Serteller

2022

Sustainability

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In this study, the effects of the ratio of a motor’s axial length to its pole pitch on efficiency, magnetic flux density distribution, torque, torque/weight, and motor volume were investigated in an outer-rotor (hub) brushless direct current motor. The weight and volume of an electrical machine affects the output power, efficiency and output torque, and it is advantageous to design an electric motor at an appropriate power and high efficiency with an appropriate weight and volume. Therefore, the aim of this study was to optimize the motor’s axial length and stator outer diameter, which affects the motor volume. Initially, the axial-length-to-pole-pitch ratio of the hub BLDC motor was taken at 0.75. According to this ratio, the dimensions of the rotor outer diameter, rotor inner diameter, stator outer diameter, stator inner diameter, slot height, motor axial length, and magnet thickness were optimally determined. Then, the axial-length-to-pole-pitch ratio was considered as 1, 1.50, 2, and 3, respectively. The effects of the change in the motor’s axial-length-to-pole-pitch ratio on the efficiency, torque, speed, torque/volume, torque/weight, and cogging torque were examined in a simulation environment. According to the motor’s axial-length-to-pole-pitch ratio, the torque value in the final state was 28.65% higher than the torque value in the initial state. In the last part, the motor axial length and the stator outer diameter were defined as variables in a genetic algorithm procedure and optimized. The number of poles and the number of slots were fixed parameters. Simulation studies were carried out using the finite element method via AN-SYS/Maxwell software.

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“…This paper discusses the fault tolerant capability of the 6PIM equipped with different winding configurations (such as distributed, concentrated, and pseudo-concentrated windings) under different fault scenarios. Recently, many valuable published works focused on the reliability evaluation of electrical machines [20]- [24]. Various studies on motor reliability have shown that about 30% to 40% of induction motor failures are caused by stator winding faults [25]- [26].…”

Section: Introductionmentioning

confidence: 99%

Fault-Tolerant Capability Analysis of Six-Phase Induction Motor with Distributed, Concentrated and Pseudo-Concentrated Windings

et al. 2022

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Six-phase motors are becoming more popular because of their advantages such as lower torque ripple, better power distribution per phase, higher efficiency, and fault-tolerant capability compared to the three-phase ones. This paper presents the fault-tolerant capability analysis of a symmetrical six-phase induction motor equipped with distributed, conventional concentrated, and pseudo-concentrated windings under open-circuit fault scenarios. For further investigation, different load types such as constant-speed, constant-torque, and constant-power are applied to the motor. Two concepts of magnetic and physical phase separations are introduced as factors affecting the motor reliability. Analytically, these factors give an insight into how the pseudo-concentrated winding could be a faulttolerant alternative. Moreover, five parameters such as the change of output power, power loss, power factor, efficiency, and expected load loss are considered as the fault-tolerant capability parameters to evaluate the windings' reliability. The aforementioned parameters are reported using the finite element analysis for different fault scenarios and different load types. Although the baseline motor dimensions are not optimized for applying the pseudoconcentrated winding, the pseudo-concentrated shows a promising performance with high fault-tolerant capability.

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Multiobjective electric machine optimization for highest reliability demands

Cited by 10 publications

References 32 publications

Low Carbon Operation Optimization Study of Integrated Energy Systems Considering Interruptible Loads

Low Carbon Operation Optimization Study of Integrated Energy Systems Considering Interruptible Loads

The Design of the Outer-Rotor Brushless DC Motor and an Investigation of Motor Axial-Length-to-Pole-Pitch Ratio

Fault-Tolerant Capability Analysis of Six-Phase Induction Motor with Distributed, Concentrated and Pseudo-Concentrated Windings

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