A comparison of a signal-injection method and a discrete-search algorithm for MTPA tracking control of an IPM machine

Windisch, Thomas; Hofmann, W.

doi:10.1109/epe.2015.7309290

Cited by 6 publications

(2 citation statements)

References 9 publications

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“…These methods are based on discrete variations of the operating point and evaluation of their effect. In some cases, they are considered faster than other MTPA tracking techniques, e.g., in [133], where the "Simplex" discrete-search method is compared to "MTPA tracking". A common drawback is related to the robustness to load variations, which has been addressed in [3], by combining P&O with parameters estimation.…”

Section: B Extremum Seekingmentioning

confidence: 99%

Review and Classification of MTPA Control Algorithms for Synchronous Motors

Dianov¹,

Tinazzi

Calligaro

et al. 2022

IEEE Trans. Power Electron.

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This paper discusses the Maximum Torque Per Ampere (MTPA) control of synchronous motors, which have become an indispensable part of highly-efficient motor drives. It explains the nature of torque produced by synchronous motors, ways to find its maximum and algorithms to operate at this point, despite changes of loads and motor parameter variations. The authors propose a classification of the MTPA methods, based on the features of each algorithm or group of similar methods. They demonstrate the conventional control scheme and discuss the modifications necessary for the implementation of each method. This paper reviews existing maximum torque per ampere control algorithms, discusses their pros and cons and suggests possible areas of usage for each group of methods. The authors of the paper share their vast experience in the industry and research aspects, which were obtained by developing industrial, commercial, traction and military drives, and report on their views on the perspective of each method taken into consideration.

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Section: B Extremum Seekingmentioning

confidence: 99%

Review and Classification of MTPA Control Algorithms for Synchronous Motors

Dianov¹,

Tinazzi

Calligaro

et al. 2022

IEEE Trans. Power Electron.

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“…ESC is an algorithm that adjusts the tracking MTPA operating point in a closed-loop manner without direct reference to the analysis of the motor model and related parameters and is highly adaptable to other motors. Currently, there are the following main types of realizations: high-frequency (HF) injection [15], low-frequency (LF) injection [16], virtual signal injection control (VSIC) [17], perturb and observe (P&O) technique [18], etc., the principles of which can be seen as an application of the ESC principle [19]. For instance, the work presented in [20] proposes an enhanced signal injection strategy responsible for correcting the MTPA reference deviation caused by motor parameter variations.…”

Section: Introductionmentioning

confidence: 99%

Fractional-Order Extremum Seeking Method for Maximum Torque per Ampere Control of Permanent Magnet Synchronous Motor

Song,

Duan,

Yan

et al. 2023

Fractal Fract

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Maximum torque per ampere (MTPA) control of internal permanent magnet synchronous motors (IPMSM) has become integral to high-efficiency motor drives. To minimize the influence of the traditional model-based analytical solution method on the MTPA control strategy due to the parameter variations during the motor operation, an online search MTPA method without model-based fractional-order extremum seeking control (FO-ESC) is proposed. Compared with the traditional integer-order ESC method, the Oustaloup approximation-based fractional-order calculus provides additional factors and possibilities for optimizing controller parameters to improve control performance. At the same time, the proposed approach does not require machine parameters and is thus not influenced by machine and drive nonlinearities. Simulation results show that the proposed method can ensure robust MTPA control under different loading conditions in real-time and improve the system’s dynamic response speed and steady-state accuracy.

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Research on the Influence of Torque, Speed and Allowable Loss Deviation on the Optimized Current in the Efficiency Optimization Control of IPMSM

Pang

et al. 2020

IOP Conf. Ser.: Mater. Sci. Eng.

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In the efficiency optimization control of IPMSM, the working state of the search should be determined by using the search method to obtain the initial optimized current set. For any system, it is expected that the working state of the search should be as little as possible. Meanwhile, according to the initial optimized current set, the interpolation method can be used accurately to realize the efficiency optimization of the whole state. Based on the total loss model of IPMSM, various constraints of running and optimization theory, the equation satisfying the optimization current was obtained, and the influence of motor speed and torque on the optimization current was theoretically analyzed. Through the simulation test of electric drive system of electric vehicle, the optimization current of motor in various states is searched. The simulation results verify the correctness of the theoretical analysis results. Then the number of states to be searched under different allowable loss deviations is analyzed to obtain the initial optimized current set.

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A comparison of a signal-injection method and a discrete-search algorithm for MTPA tracking control of an IPM machine

Cited by 6 publications

References 9 publications

Review and Classification of MTPA Control Algorithms for Synchronous Motors

Review and Classification of MTPA Control Algorithms for Synchronous Motors

Fractional-Order Extremum Seeking Method for Maximum Torque per Ampere Control of Permanent Magnet Synchronous Motor

Research on the Influence of Torque, Speed and Allowable Loss Deviation on the Optimized Current in the Efficiency Optimization Control of IPMSM

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