Design of a variable-flux permanent magnet synchronous motor for adjustable speed operation

Jang, Jin-Seok; Humza, Muhammad; Kim, Byung-Taek

doi:10.1109/ecce.2015.7310059

Cited by 8 publications

(3 citation statements)

References 12 publications

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“…The existence of a Lyapunov function, provided by the LMIs, proves the robust stability under arbitrary variations of the parameters of the motor. The proposed framework is applicable to the design of robust PIs for the wide class of first order plants in (7), and will be evaluated in sensorless control for PMSM applications in future works.…”

Section: Discussionmentioning

confidence: 99%

Linear Matrix Inequality Based Synthesis of PI Controllers for PMSM with Uncertain Parameters

Koch¹,

Gabbi²,

Vieira³

et al. 2018

Eletrônica de Potência

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-This paper addresses the design of robust PI controllers for permanent magnet synchronous motors in terms of a linear matrix inequality based problem. A polytopic model of the plant is obtained and validated for the motor uncertain parameters belonging to intervals. The design procedure proposed here encompasses: i. suitable plant uncertainties inclusion and the use of practical design control constraints; ii.robust PI computation based on linear matrix inequalities with a very fast solution; iii. simulation analyses; and iv. experimental evaluations. The robust PI controller can produce superior speed regulation than a PI controller designed only for the nominal parameters, including better disturbance rejection and H ∞ performance. Experimental results confirm the viability of the proposal, which can be seen as an efficient alternative to trade off performance and robustness for PI controllers in this application.

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Section: Discussionmentioning

confidence: 99%

Linear Matrix Inequality Based Synthesis of PI Controllers for PMSM with Uncertain Parameters

Koch¹,

Gabbi²,

Vieira³

et al. 2018

Eletrônica de Potência

View full text Add to dashboard Cite

show abstract

“…Generally, to achieve a wide speed range, large d-axis current is applied to weaken the PM flux. However, it is inevitable that more copper loss will be produced, and the risk of irreversible demagnetization of PM will be increased [5][6][7]. Besides, the speed range may be limited due to the limitations of maximum current and voltage for the inverter.…”

Section: Introductionmentioning

confidence: 99%

Multi-Objective Optimal Design and Analysis of Variable Leakage Flux Ipm Motors for Improve Flux-Weakening Ability

Liu¹,

Guo²,

Du³

et al. 2021

PIER C

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In this paper, two variable leakage flux permanent magnet (VLFPM) machines are proposed. The keys are to adopt the rotor with single-layer and double-layer PMs and intentionally create leakage flux paths to extend the operating speed range and increase the machine efficiency. The characteristics of the variable leakage flux of the proposed machines are investigated. In order to improve the performances of the VLFPM machines, the Multi-Objective Genetic Algorithm (MOGA) method is applied for achieving the multi-objective optimizations of variables. Then, the performances of the double-layer permanent magnet variable leakage flux motor (DLPM-VLFM) and the singlelayer permanent magnet variable leakage flux motor (SLPM-VLFM) are analyzed and compared with conventional interior PM machine (CIPMM) in detail. The performances mainly include flux linkage and torque, flux-weakening capability and efficiency. Finally, it is shown by analysis and comparison that the DLPM-VLFM can have a wider range of speed and high efficiency.

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“…Especially in the field of automobiles, pure electric vehicles (EV) gradually replace traditional fuel vehicles due to their significant advantages of high efficiency and zero-emission [6]. However, the air-gap magnetic field of conventional PMSM is difficult to regulate, which limits its speed range [7]. Generally, negative d-axis flux-weakening current is applied to weaken the magnetic field [8], but it inevitably affects the efficiency and increases the risk of PM irreversible demagnetization [9,10].…”

Section: Introductionmentioning

confidence: 99%

Multi-Objective Optimal Design of the MFW-Ipm Machine for Improve Flux-Weakening Ability

Liu¹,

Guo²,

Zhu³

et al. 2021

PIER C

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In this paper, a novel mechanical-flux-weakening interior permanent magnet (MFW-IPM) machine is proposed to improve flux-weakening ability. The key of the proposed machine is that the permanent magnet is rotatable, and a mechanical device is equipped on both sides of the rotor. The mechanical device can regulate the air-gap magnetic field by rotating PM to change the leakage flux and magnetization direction of PM. As a result, the flux-weakening ability is improved. The flux-weakening principle of the MFW-IPM machine is investigated in detail. In addition, a multi-objective optimization method is adopted to improve the performance of the proposed machine. Then, the electromagnetic performances of the original machine and optimized machine are compared by finite element analysis. Finally, both simulation results and experimental tests verify the effectiveness of the flux-weakening enhancement design and optimization method.

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Design of a variable-flux permanent magnet synchronous motor for adjustable speed operation

Cited by 8 publications

References 12 publications

Linear Matrix Inequality Based Synthesis of PI Controllers for PMSM with Uncertain Parameters

Linear Matrix Inequality Based Synthesis of PI Controllers for PMSM with Uncertain Parameters

Multi-Objective Optimal Design and Analysis of Variable Leakage Flux Ipm Motors for Improve Flux-Weakening Ability

Multi-Objective Optimal Design of the MFW-Ipm Machine for Improve Flux-Weakening Ability

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