Efficient Topology of Powering a Washing Machine Using a Permanent Magnet Synchronous Motor

Oprea, Andrei; Floricau, D.

doi:10.1109/icate49685.2021.9465006

2021 International Conference on Applied and Theoretical Electricity (ICATE) 2021

DOI: 10.1109/icate49685.2021.9465006

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Efficient Topology of Powering a Washing Machine Using a Permanent Magnet Synchronous Motor

Andrei Oprea

D. Floricau

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Cited by 3 publications

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“…Most of the time, in a medium to high end product, when an electric motor is present, it is either a permanent magnet synchronous motor (PMSM) or a permanent magnet assisted synchronous reluctance motor (PMaSynRM), due to their comparable power density, efficiency, cost (ferrites), ease of control and lower maintenance requirements. Another option is to use induction motors, but they are being replaced by permanent magnet motors due to more stringent efficiency requirements in the appliance market [1]. Most of the time, these types of motors are coupled with an electric drive unit, which is an inverter hardware alongside a control software.…”

mentioning

confidence: 99%

A Lean Approach to Zero and Low-Speed Sensorless Control of PMaSynRMs

Tap,

Akgul,

Ergenc

et al. 2023

IEEE Access

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Sensorless control of permanent magnet motors in full speed range is indispensable for home appliance applications due to cost, robustness and maintenance requirements. Zero and very low-speed sensorless control is a challenging area for model-based position observers. The common methodology for position detection at zero and low speeds is high-frequency signal injection methods due to their independence from model parameters. The major drawback of such methods is the signal processing burden for demodulation of resultant high-frequency currents. In this study, a simplified filtering scheme with a reduced number of filters is proposed for high-performance zero and low speed control of the Permanent Magnet Assisted Synchronous Motors for washing machine applications with a low-cost microcontroller. The proposed method employs the rotating voltage vector injection using a single band-pass filter combined with N-sample averaging. This approach reduces system complexity by reducing the number of filtering stages to just one while providing robustness to estimations under fast current and speed gradients. The proposed method leaves 47% CPU overhead (without any optimization) including notch filtering of the dqaxes current feedbacks for better current control and parallel operation with an SMO based Back-EMF observer for switchover at higher speeds. Experimental results show that the proposed method is suitable for a low-cost microcontroller implementation in a washing machine with maximum uncompensated and compensated errors of 2.28 and 0.708 degree electrical respectively. The position estimation algorithm is shown to be suitable for unfavorable operating conditions such as zero speed acceleration under full load, step speed commands, step direction reversals, intermittent loads such as changing drum inertia and pulsating torque at very low speeds. The proposed system is able to track position with position errors up to 0.708 degree electrical and maintain speed control at very low speeds under 30% pulsating load torque.

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mentioning

confidence: 99%

A Lean Approach to Zero and Low-Speed Sensorless Control of PMaSynRMs

Tap,

Akgul,

Ergenc

et al. 2023

IEEE Access

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Field-oriented control based on parallel proportional–integral controllers of induction motor drive

2023

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Generalized Differential Mathematical Model in Stator Reference Frame for PMSM and VRSM Simulation

Popovici

Onea

2021

Bulletin of the Polytechnic Institute of Iași. Electrical Engineering, Power Engineering, Electronics Section

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The paper presents the deduction of a novel decoupled form (considering the differential current quantities) of the differential mathematical model in stator reference frame, useful for numeric simulation of control approaches for PMSM (permanent magnet synchronous machines) generalized for both IPMSM and SPMSM (salient and non-salient PMSM). The model is confirmed to be equivalent to the well-known model defined in the rotor synchronous reference frame using a Matlab-Simulink implementation that is verified and validated by simulation during which the power/energy conservation is monitored and the system states’ evolution is compared to the reference model in rotor reference frame using a generator structure.

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Efficient Topology of Powering a Washing Machine Using a Permanent Magnet Synchronous Motor

Cited by 3 publications

References 4 publications

A Lean Approach to Zero and Low-Speed Sensorless Control of PMaSynRMs

A Lean Approach to Zero and Low-Speed Sensorless Control of PMaSynRMs

Field-oriented control based on parallel proportional–integral controllers of induction motor drive

Generalized Differential Mathematical Model in Stator Reference Frame for PMSM and VRSM Simulation

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