Computation-Efficient Online Optimal Tracking Method for Permanent Magnet Synchronous Machine Drives for MTPA and Flux-Weakening Operations

Xia, Zekun; Filho, Silvio Rotilli; Xiao, Dianxun; Fang, Gaoliang; Sun, Yingguang; Wiseman, Jason; Emadi, Ali

doi:10.1109/jestpe.2020.3039205

Cited by 26 publications

(7 citation statements)

References 34 publications

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“…Fundamentalfrequency-based methods, available at medium and high speed, are considered to be more sensitive to parameter mismatch due to the motor model dependence [84]. For low-speed sensorless control, signal-injection-based schemes are motor-parameter-independent, while the accurate motor parameters are still expected for robust current/torque control performance [85]. Generally, model sensitivity in position estimation is only analyzed on model-based techniques, such as EEMF-based methods [45] and stator flux-based methods [61].…”

Section: B Motor-parameter-adaptive Position Observer 1) Effects Of mentioning

confidence: 99%

Observers for High-Speed Sensorless PMSM Drives: Design Methods, Tuning Challenges and Future Trends

et al. 2021

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Rotor position and speed estimation methods are consolidated to reduce the cost and volume of permanent magnet synchronous motor (PMSM) sensorless control drives while maintaining high performance. Advanced nonlinear algorithms require accurate design for precise estimation tracking throughout the entire PMSM operation range. This paper presents a broad review of the main high-speed estimation methods for sensorless PMSM drives. First, the stability constraints and design methodologies of the main estimation techniques presented in the literature are discussed. In the second part, it is investigated the new observer design trends, which are used under non-ideal conditions, such as robustness to distortions, the effects of parameter variation, sensorless parameter estimation, and low sampling-frequency-to-speed ratio operation. Future trends on the design of observers for high-speed sensorless PMSM drives are also discussed.INDEX TERMS High performance drives, permanent magnet synchronous motors, sensorless control, state observer design.

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Section: B Motor-parameter-adaptive Position Observer 1) Effects Of mentioning

confidence: 99%

Observers for High-Speed Sensorless PMSM Drives: Design Methods, Tuning Challenges and Future Trends

et al. 2021

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“…For researchers, ensuring the steady operation of the electric motor through fault diagnosis is more complex and difficult [1]. Due to their high efficiency and excellent power density, permanent magnet synchronous motors (PMSMs) are widely employed in EVs technology [2]- [4]. Rare-earth elements are frequently used to make permanent magnets, although they have a number of disadvantages, such as being expensive and irreversibly demagnetizing at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Multi-objective optimization of slotted stator switched reluctance motor for electric vehicle application

Kh Al-Farhan,

Sh Al-Yozbaky

2023

IJEECS

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The popularity of electric vehicles (EVs) and hybrid electric vehicles (HEVs) is projected to increase as environmental consciousness rises. They have emerged as a potential substitute for traditional electrical machines like the switched reluctance motors (SRMs). SRMs are renowned for their low cost of production and maintenance, built-in fault tolerance, and simple design. Additionally, because the machine's rotor construction does not require copper coils or permanent magnets, production costs are significantly reduced. However, it has disadvantages, including as high non-linearity, high torque ripple, and acoustic noise production. In this research, a method for designing slotted stator teeth switched reluctance motors (SST-SRM) in EVs using a genetic algorithm (GA) optimization design with multiple targets is provided. In order to achieve the best possible balance between peak torque (Tp), average torque (Tavg), and efficiency, the developed optimization function is chosen. The stator/rotor pole arc angle and slot width/depth are chosen as the optimized variables. When compared to traditional SRM, the optimization results of proposed SST-SRM demonstrate improvements in peak torque (24.40%, 36.98%, 42.73%, and 42.45%), average torque (7.40%, 29.94%, 33.00%, and 33.62%), and efficiency (0.27%, 0.52%, 0.97%, and 1.03%).

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“…Several approaches [12]- [22] have been presented to improve motor control performance under the impact of motor parameter variation, including on-line motor parameter estimation [12], [13], Look-Up Table of MTPA angle without updating the motor parameters [14], on-line MTPA curve search methods [15]- [17]. Recently, a different scheme that searches for MTPA operating points by injecting virtual signals into the motor drives to estimate the motor torque, and then extracting the MTPA angle through some filters and algorithms is presented [18], [19].…”

Section: Introductionmentioning

confidence: 99%

New On-Line MTPA Angle Search and Control Methods Based on Digital Twins for IPM Synchronous Motor Drives Considering Motor Non-Linearity

Qiu,

Lai

2023

IEEE Access

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The main theme of this paper is to propose on-line MTPA angle search and control methods based on digital twins for IPM synchronous motor drives. The proposed method is developed based upon the ECE model, the finite element model of IPM synchronous motor. An on-line MTPA angle search method is developed to achieve the minimization of stator current for the specific output torque and speed. A new IPM synchronous motor control is proposed based upon its digital twins model to consider the non-linearity caused by magnetic saturation of motor which become more relevant especially under heavy load conditions. In the proposed IPM synchronous motor control method, two current controllers and the parameters for decoupling control are tuned on-line to adapt to the variation of motor parameters caused by the non-linearity of motor. Experiment results are shown to support the proposed methods. The motor for the application of electrical scooter with the rated specifications of 2 kW, 2000 rpm, 10 Nm, is used for test and comparison. Comparing with the conventional methods, the test results show the stator current can be reduced up to 17.23 % under 2000 rpm and half load conditions. The efficiency improvement is up to 3.18 %. These results fully confirm the effectiveness of the proposed on-line MTPA angle search and control methods.INDEX TERMS Interior Permanent Magnet (IPM) synchronous motor, maximum torque per Amp (MTPA) control, digital twins, Equivalent Circuit Extraction (ECE) model.

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Computation-Efficient Online Optimal Tracking Method for Permanent Magnet Synchronous Machine Drives for MTPA and Flux-Weakening Operations

Cited by 26 publications

References 34 publications

Observers for High-Speed Sensorless PMSM Drives: Design Methods, Tuning Challenges and Future Trends

Observers for High-Speed Sensorless PMSM Drives: Design Methods, Tuning Challenges and Future Trends

Multi-objective optimization of slotted stator switched reluctance motor for electric vehicle application

New On-Line MTPA Angle Search and Control Methods Based on Digital Twins for IPM Synchronous Motor Drives Considering Motor Non-Linearity

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