Predictive Direct Torque Control for the PM Synchronous Machine

Pacas, Mario; Weber, Jonas B.

doi:10.1109/tie.2005.855662

Cited by 211 publications

(48 citation statements)

References 3 publications

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“…If the sampling interval is small enough (in our case 50 µs), some simplifications can be introduced; ω el can be considered to be quasi-constant and the stator currents change almost linearly (not exponentially) during the whole sampling interval. Therefore, voltage equations (3) and (4) can be discretized using the Euler approximation method, thus enabling the prediction of the stator current [8,10]:…”

Section: Predictive Sopf Detection Methodsmentioning

confidence: 99%

“…Along with the development of modern power electronics and microprocessor technology, more advanced control methods for electrical drives have been developed. Nowadays, two standard control strategies for PMSMs are mainly used, namely field-oriented control (FOC) and direct torque control (DTC) [3][4][5][6][7][8], which compete with predictive approaches [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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Single Open-phase Fault Detection with Fault-Tolerant Control of an Inverter-fed Permanent Magnet Synchronous Machine

et al. 2014

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In this paper first a current predictive method for single open-phase fault detection in a three phase drive with a permanent magnet synchronous machine is presented. The proposed method is based on a predictive stator current calculation. For each sampling interval the difference between the actual stator current and its predicted value in a previous sampling interval is calculated. To identify the location of a single open-phase fault, an identification method is presented which is based on the analysis of the stator current vector angle. After the single open-phase fault is detected and identified it is desirable for the electrical machine to continue operating with a reduced number of phases. For this purpose, a modified direct torque control algorithm for the fault-tolerant control is implemented. In order to improve the performance of the drive, a pre-firing angle is additionally introduced. All proposed methods have been simulated in Matlab/Simulink and verified on an experimental model. Detekcija odspojene faze i na kvarove otporno upravljanje pretvaračem napajanim sinkronim motorom s permanentnim magnetima. Učlanku je prvo predstavljena metoda za detekciju kvara odspojene faze u trofaznom elektromotornom pogonu sa sinkronim motorom s permanentim magnetima zasnovana na predikciji struja statora. U svakom koraku uzorkovanja računa se razlika izmeu trenutne mjerene struje statora i prediktirane vrijednosti iz prethodnog koraka. U svrhu odreivanja lokacije odspojene faze, predstavljena je metoda identifikacije zasnovana na analizi kuta vektora struje statora. Nakon otkrivene i utvrene odspojene faze, poželjno je nastaviti rad električnog stroja sa smanjenim brojem faza. U ovu svrhu implementiran je izmijenjeni algoritam izravnog upravljanja momentom za postizanje na kvarove otpornog upravljanja. Da bi se unaprijedilo vladanje sustava elektromotornog pogona, dodatno je uveden kut prethoenja aktivacije impulsa. Sve predložene metode simulirane su u Matlab/Simulink okruženju i provjerene na eksperimentalnom postavu.Ključne riječi: Sinkroni motor s permanentnim magnetima, na kvarove otporan sustav, kvar jedne odspojene faze, na kvarove otporno upravljanje, kut prethoenja aktivacije impulsa

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Section: Predictive Sopf Detection Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Single Open-phase Fault Detection with Fault-Tolerant Control of an Inverter-fed Permanent Magnet Synchronous Machine

et al. 2014

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“…For the predictive control strategy, the duty ratio of the voltage vector selected is determined by the cost functions, such as the torque-ripple minimized control [20], the deadbeat torque control [21,22], and the mean torque control [23]. However, the predictive torque control algorithm is highly dependent on the models of the load and converter, which becomes extremely complex when applied to the IPMSM [24].…”

Section: Introductionmentioning

confidence: 99%

Direct Stator Flux Vector Control Strategy for IPMSM using a Full-order State Observer

Yuan¹,

Zeng²,

Zhao³

2017

Journal of Electrical Engineering and Technology

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-A direct stator flux vector control scheme in discrete-time domain is proposed in this paper for the interior permanent magnet synchronous motor (IPMSM) drive to remove the proportional-integral (PI) controller from the direct torque control (DTC) scheme applied to IPMSM and to obtain faster dynamic response and lower torque ripple output. The output of speed outer loop is used as the desired torque angle instead of the desired torque in the proposed scheme. The desired stator flux vector in dq coordinate is calculated with a given amplitude. The state-space equations in discrete-time for IPMSM are established, the actual stator flux vector is estimated in deadbeat manner by a full-order state observer, and then the closed-loop control is achieved by the pole placement. The stator flux error vector is utilized to calculate the reference stator voltage vector. Extracting the angle position and amplitude from the estimated stator flux vector and estimating the output torque are eliminated for the direct feedback control of the stator flux vector. The proposed scheme is comparatively investigated with a PI-SVM DTC scheme by experiment results. Experimental results show the feasibility and advantages of the proposed control scheme.

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“…A Predictive direct torque control method has been proposed to overcome drawbacks of DTC for PMSM [17]. In this approach the torque ripple is supposed to be constant.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study Between Direct Torque Control and Predictive Torque Control for Axial Flux Permanent Magnet Synchronous Machines

Siami¹,

Gholamian²,

Yousefi³

2013

Journal of Electrical Engineering

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This paper presents a comparative study between direct torque control (DTC) and predictive torque control (PTC) of Axial Flux Permanent magnet Machines (AFPM). In conventional DTC method for permanent magnet machines, only six actives voltage vectors of inverter are used to control torque and flux of machine. But in predictive torque control, in addition to six active voltage vectors, zero voltage vectors are used to control machine. So number of voltage vectors to control AFPM increases that leads to lower ripple of torque and flux. In predictive torque control, the response of torque and flux are computed for all possible switching states of inverter at every sample time according to discrete time model of machine, and then the switching state that optimizes ripple of torque and flux, will be applied in next discrete-time interval. Simulation results which compare the results of implementation of both methods and confirm the good performance of the proposed predictive torque control are presented.

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Predictive Direct Torque Control for the PM Synchronous Machine

Cited by 211 publications

References 3 publications

Single Open-phase Fault Detection with Fault-Tolerant Control of an Inverter-fed Permanent Magnet Synchronous Machine

Single Open-phase Fault Detection with Fault-Tolerant Control of an Inverter-fed Permanent Magnet Synchronous Machine

Direct Stator Flux Vector Control Strategy for IPMSM using a Full-order State Observer

A Comparative Study Between Direct Torque Control and Predictive Torque Control for Axial Flux Permanent Magnet Synchronous Machines

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