Online Full-Speed Region Control Method of IPMSM Drives Considering Cross-Saturation Inductances and Stator Resistance

Lu, Yiping; He, Shaomin; Li, Chushan; Luo, Haoze; Li, Wuhua; Zhao, Rongxiang

doi:10.1109/tte.2022.3227556

Cited by 10 publications

(4 citation statements)

References 29 publications

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“…This on-line MTPA angle search process stops as the reference torque, Te_DT and the calculated torque, Te_real, is zero or within a limited band. In Figure 10, the torque error is defined by (15). This article has been accepted for publication in IEEE Access.…”

Section: B Ppoposed On-line Mtpa Angle Search and Control Methodsmentioning

confidence: 99%

“…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%

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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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Section: B Ppoposed On-line Mtpa Angle Search and Control Methodsmentioning

confidence: 99%

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 rapid growth of the implementation of the IPM motors is due to their highly efficient and large power-energy density [6,7]. However, the IPM motor drive poses several challenges, such as dealing with magnetic saturation, demagnetization of the permanent magnets, cross-coupling between the dand q-axes within the controller, and the influence of time and space harmonics on the effectiveness of vector control [8][9][10][11]. These challenges and their impact on the IPM motor control are illustrated in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

“…Energies 2023, 16, x FOR PEER REVIEW 2 of 23 d-and q-axes within the controller, and the influence of time and space harmonics on the effectiveness of vector control [8][9][10][11]. These challenges and their impact on the IPM motor control are illustrated in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

Improved Current and MTPA Control Characteristics Using FEM-Based Inductance Maps for Vector-Controlled IPM Motor

et al. 2023

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Some major problems in the motor drive are the overshoot or undershoot of transient response characteristics and a parameter mismatch due to magnetic saturation. This study proposed a 3D inductance map combined with a maximum-torque-per-ampere (MTPA) map based on a finite-element (FE) motor model considering a cross-coupling magnetic saturation impact to overcome this problem. The proposed FE motor model has a high accuracy of no-load back electromotive force (e.m.f.) around 98.3% compared to the measurement results. Then, nine scenarios of vector control combinations of inductance maps and current supply variations of β 0°, 45°, and MTPA were investigated. As a result, the transient response improvement for β 0°, 45°, and MTPA without the map and with Ld and Lq maps is 63%, 10%, and 15%, respectively. Moreover, for the steady-state response, the average torque improvement between MTPA and Idref 0 A control is 9.21%, 8.97%, and 8.98% for the no-map, ave-map, and 3D-inductance-map conditions, respectively. The MTPA trajectory characteristic was also updated to illustrate the actual MTPA condition compared to the conventional MTPA control. In detail, the proposed method has reduced the parameter mismatch for the current control loop in the transient state and improved the MTPA control trajectory for the steady-state response. Finally, the improvement of vector control characteristics of the proposed method was verified by an FE simulation and experimental measurement results.

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T-type multilevel inverter-fed interior PM machine drives based on the voltage regulation feedback and the model predictive control

Mohamed,

Saeed

2023

Electr Eng

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The tracking of optimal current trajectories in an interior permanent magnet (IPM) synchronous machine is traditionally realized by a complex online tracking, inaccurate analytical equations, or tiresome offline calibration methods. This paper proposes a modified hybrid feed-forward/feedback flux-weakening algorithm for IPM synchronous machines. In this paper, the utilized power converter is a standard T-type multilevel inverter, and hence, the voltage and current harmonics contents of the conventional two-level inverter are improved. The control algorithm utilizes the optimal current profile for maximum torque per ampere (MTPA) operation and a voltage regulation (VR) feedback control for efficient flux-weakening operation. For infinite-speed IPM machine drives, the d-q current components are limited to follow the maximum torque per voltage (MTPV) trajectory. A low-complexity model predictive control (MPC) is employed to minimize the conflict that arises from using cascaded PI control loops for current and speed control. The performance of the drive is investigated based on the Prius 2004 IPM parameters. Extensive simulation scenarios were performed using the MATLAB/SIMULINK which validates the effectiveness of the proposed algorithm. Real-time simulations based on the dSPACE DS 1103 platform are conducted to confirm the system validity for real hardware implementation. The proposed IPM drive system proves simple structure, fast response, and low harmonic contents.

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Online Full-Speed Region Control Method of IPMSM Drives Considering Cross-Saturation Inductances and Stator Resistance

Cited by 10 publications

References 29 publications

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

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

Improved Current and MTPA Control Characteristics Using FEM-Based Inductance Maps for Vector-Controlled IPM Motor

T-type multilevel inverter-fed interior PM machine drives based on the voltage regulation feedback and the model predictive control

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