Open loop V/f control of multiphase induction machine under open-circuit phase faults

Morsy, Ayman T A; Abdel‐Khalik, Ayman S.; Abbas, Abdelaziz Y. M.; Ahmed, Shehab; Massoud, Ahmed M.

doi:10.1109/apec.2013.6520447

Cited by 15 publications

(12 citation statements)

References 27 publications

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“…For digital implementation on the digital signal processor (DSP), the PR controllers given in (7) are discretised at 5 kHz using a zero-order hold method [14].…”

Section: Pr Controllermentioning

confidence: 99%

“…Despite the fact that vector control gives better dynamic response; yet, scalar control is simpler and still widely used in industrial fields. In the literature, the control of multiphase IM using V/f is addressed for the healthy case [12, 13]; however under the open phase case, little work has been conducted [14]. In earlier work [14], a simple open‐loop V/f controller is provided for open‐circuit faults using proportional resonant (PR) controllers to ensure equal line currents and hence minimum torque ripples.…”

Section: Introductionmentioning

confidence: 99%

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Sensorless speed control of a five‐phase induction machine under open‐phase condition

Morsy

Abdel‐Khalik

Ahmed

et al. 2014

J. eng.

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Recently, multiphase machines have been promoted as competitors to their three-phase counterparts in high-power safety-critical drive applications. Among numerous advantages of multiphase induction machine (IM) drives, self-starting and operation under open phase(s) stand as the most salient features. With open phase(s), optimal current control provides disturbance-free operation given a set of objective functions. Although hysteresis current control was merely employed in the literature as it offers a simple controller structure to control the remaining healthy phases, it is not suitable for high-power applications. In the literature, multiple synchronous reference frame (dq) control can be an alternative; however, it requires back and forth transformations with several calculations and additional sophistication. In this paper, a simple technique employing adaptive proportional resonant (PR) current controllers is presented to control a five-phase IM under open-phase conditions. Results for both volt/hertz (V/f) and field oriented control (FOC) systems are presented. Moreover, sensorless operation under fault condition is also demonstrated by estimating the machine speed using a rotor flux-based model reference adaptive system (MRAS) speed estimator. The proposed controllers are experimentally verified and compared. Although FOC provides better dynamic performance, V/f control offers a simpler control structure and a lower number of PR controllers.

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“…For digital implementation on the digital signal processor (DSP), the PR controllers given in (7) are discretised at 5 kHz using a zero-order hold method [14].…”

Section: Pr Controllermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sensorless speed control of a five‐phase induction machine under open‐phase condition

Morsy

Abdel‐Khalik

Ahmed

et al. 2014

J. eng.

Self Cite

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“…In addition, for the same machine power ratings, multiphase machines can be designed with a reduced per-phase voltage than three-phase machines and correspondingly reduces the converter ratings, which is considered an advantage particularly in medium voltage applications. Furthermore, the multiphase machines exhibit lower torque ripples, a highly desired feature for rotational mass with high weight, and lower DC link current harmonics [18]- [20]. Among different phase orders, the asymmetrical six phase IM is proposed for some industrial applications as electric aircrafts, ship propulsion, and wind applications.…”

Section: Nomenclaturementioning

confidence: 99%

An asymmetrical six phase induction machine for flywheel energy storage drive systems

Daoud

Abdel‐Khalik

Massoud

et al. 2014

2014 International Conference on Electrical Machines (ICEM)

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Φ Abstract --Energy storage systems have become an essential part of power utilities due to their capability of providing high level of power quality and stability. Flywheel energy storage systems (FESSs) are now employed with numerous grid and renewable energy applications due to their operational merits. Some of these applications are related to fault ride-through and critical load support. Therefore, the reliability of the FESS should be ensured. The main concern of the FESS drive system reliability is the applied machine type and the required power converter. In this paper, an asymmetrical six phase machine is proposed to drive a lowspeed FESS in order to enhance the overall reliability and improve system fault tolerance capability. Different simulation case studies during healthy and faulty conditions are presented using MATLAB/Simulink. The proposed FESS is built experimentally to investigate system performance during both cases. This publication was made possible by NPRP grant 4-250-2-080 from the Qatar National Research Fund (a member of Qatar Foundation). M. I. Daoud Dr. Abdel-khalik is currently a lecturer in Electrical Engineering Department, Faculty of Engineering, Alexandria University. In 2009, he also joined Spiretronic LLC as a senior research scientist. His research interests are electrical machine design, electric machine simulation, electric drives, Energy Conversion, Renewable Energy and Power Quality, and HVDC. Ahmed M. Massoud (SM'11) received the B.Sc. (first class honors) and M.Sc. degrees from the

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“…These kinds of faults can occur due to the burning of switches. In the literature, various control techniques like FOC (field oriented control) [4][5][6], MPC (model predictive control) [7], proportional resonant controller (PR) [8,9], direct torque control [10] and others are addressed for fault tolerant control in multiphase induction motor. In past few years different nonlinear control techniques such as adaptive control, variable structure control and other artificial intelligent control techniques have become popular among the researchers in motor drive control applications.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Performance Enhancement and Comparative Analysis of Fault Tolerant Five Phase Induction Motor using PSO and GWO Algorithms

Gor¹,

Shah²

2020

International Journal of Engineering Research and Technology

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The multiphase induction motor is a highly preferable choice for the electric vehicle application where the reliability and safety of passengers are one of the major concerns. In such safety critical applications, it is necessary to have the smooth speed transition under the occurrence of fault with minimum disturbance in the system. Therefore this paper proposes GWO (Grey Wolf Optimization) based optimal speed controller, which deals with fault tolerant mode of operation in rotor field oriented controlled (RFOC) five phase induction motor (FPIM). In this paper an open phase fault on FPIM is considered due to leg switches failure in the power electronic converter. It is modeled by applying back EMF calculation in faulty phase, which minimizes the controller reconfiguration under fault. The motive of the paper is to optimize the speed controller gains to enhance the controller performance against the uncertainties of fault occurrence and application of fault tolerant technique in FPIM. Hence this work proposes an application of GWO (Grey Wolf Optimization) algorithm to finely tune speed controller gains which will generate optimal torque reference under all such disturbances. The superiority of algorithm is proved by comparing its performance with standard PSO (Particle swarm optimization) algorithm under healthy, faulty and fault tolerant modes of operations. The comparative analysis of both the algorithms is presented considering their convergent time, number of parameters needed as well as time response parameters and calculation of various performance indices under different modes of operations. The simulation results and comparative analysis prove the effectiveness of GWO algorithm to enhance different speed tracking performances under healthy, faulty and fault tolerant modes of operation.

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Open loop V/f control of multiphase induction machine under open-circuit phase faults

Cited by 15 publications

References 27 publications

Sensorless speed control of a five‐phase induction machine under open‐phase condition

Sensorless speed control of a five‐phase induction machine under open‐phase condition

An asymmetrical six phase induction machine for flywheel energy storage drive systems

Dynamic Performance Enhancement and Comparative Analysis of Fault Tolerant Five Phase Induction Motor using PSO and GWO Algorithms

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