The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Dongseok Hyun - One of the best experts on this subject based on the ideXlab platform.
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Speed sensorless stator flux-oriented control of induction motor in the field weakening region using Luenberger Observer
IEEE Transactions on Power Electronics, 2005Co-Authors: Tae-sung Kwon, Myoungho Shin, Dongseok HyunAbstract:In a conventional speed sensorless stator flux-oriented (SFO) induction motor drive, when the estimated speed is transformed into the sampled-data model using the first-forward difference approximation, the sampled-data model has a modeling error which, in turn, produces an error in the rotor speed estimation. The error included in the estimated speed is removed by the use of a low pass filter (LPF). As the result, the delay of the estimated speed occurs in transients by the use of the LPF. This paper investigates the problem of a conventional speed sensorless SFO system due to the delay of the estimated speed in the field weakening region. In addition, this paper proposes a method to estimate exactly speed by using Luenberger Observer. The proposed method is verified by the simulation and experiment with a 5-hp induction motor drive.
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comparison of speed estimation methods for induction motor drives in the field weakening region
International Conference on Performance Engineering, 2004Co-Authors: Sukkyum Kim, Myoungho Shin, Dongseok HyunAbstract:It is important to estimate the exact rotor speed for field weakening operation in the speed sensorless stator flux oriented (SFO) induction motor drive. Several methods have been reported to estimate exactly the speed in the speed sensorless system. In this paper, we apply two Observer-based methods, the Luenberger Observer (LO) and the Kalman filter (KF), to SFO induction motor drive in order to achieve a speed sensorless operation in field weakening region. Two control methods are reviewed and discussed. The operation characteristics of these methods in the field weakening region is compared by simulation and experiment.
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A study on the speed estimation methods of induction motor drives in the field weakening region
30th Annual Conference of IEEE Industrial Electronics Society 2004. IECON 2004, 1Co-Authors: Sukkyum Kim, Dongseok Hyun, Myoungho ShinAbstract:It is important to estimate the exact rotor speed for field weakening operation in the speed sensorless stator flux oriented (SFO) induction motor drive. Several methods have been reported to estimate exactly the speed in the speed sensorless system. In this paper, we apply two Observer-based methods, the Luenberger Observer (LO) and the Kalman filter (KF) to SFO induction motor drive in order to achieve a speed sensorless operation in field weakening region. Two control methods are reviewed and discussed. The operation characteristics of these methods in the field weakening region is compared by simulation and experiment.
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Speed sensorless stator flux-oriented control of induction motor in the field weakening region using Luenberger Observer
IEEE 34th Annual Conference on Power Electronics Specialist 2003. PESC '03., 1Co-Authors: Tae-sung Kuen, Myoungho Shin, Dongseok HyunAbstract:In a conventional method speed, speed sensorless stator flux-oriented (SFO) induction motor drive, when the estimated speed is transformed into the sampled-data model using the first-forward difference approximation, the sampled-data model has a modeling error which, in turn, produces an error in the rotor speed estimation. The error included in the estimated speed is removed by the use of a low pass filter (LPF). As the result, the delay of the estimated speed occurs in transients by the use of the LPF. This paper investigates the problem of a conventional speed sensorless SFO system due to the delay of estimated speed in the field weakening region. In addition, this paper proposes a method to estimate exactly speed by using Luenberger Observer. The proposed method is verified by simulation and experiment with a 5-hp induction motor drive.
Myoungho Shin - One of the best experts on this subject based on the ideXlab platform.
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Speed sensorless stator flux-oriented control of induction motor in the field weakening region using Luenberger Observer
IEEE Transactions on Power Electronics, 2005Co-Authors: Tae-sung Kwon, Myoungho Shin, Dongseok HyunAbstract:In a conventional speed sensorless stator flux-oriented (SFO) induction motor drive, when the estimated speed is transformed into the sampled-data model using the first-forward difference approximation, the sampled-data model has a modeling error which, in turn, produces an error in the rotor speed estimation. The error included in the estimated speed is removed by the use of a low pass filter (LPF). As the result, the delay of the estimated speed occurs in transients by the use of the LPF. This paper investigates the problem of a conventional speed sensorless SFO system due to the delay of the estimated speed in the field weakening region. In addition, this paper proposes a method to estimate exactly speed by using Luenberger Observer. The proposed method is verified by the simulation and experiment with a 5-hp induction motor drive.
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comparison of speed estimation methods for induction motor drives in the field weakening region
International Conference on Performance Engineering, 2004Co-Authors: Sukkyum Kim, Myoungho Shin, Dongseok HyunAbstract:It is important to estimate the exact rotor speed for field weakening operation in the speed sensorless stator flux oriented (SFO) induction motor drive. Several methods have been reported to estimate exactly the speed in the speed sensorless system. In this paper, we apply two Observer-based methods, the Luenberger Observer (LO) and the Kalman filter (KF), to SFO induction motor drive in order to achieve a speed sensorless operation in field weakening region. Two control methods are reviewed and discussed. The operation characteristics of these methods in the field weakening region is compared by simulation and experiment.
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A study on the speed estimation methods of induction motor drives in the field weakening region
30th Annual Conference of IEEE Industrial Electronics Society 2004. IECON 2004, 1Co-Authors: Sukkyum Kim, Dongseok Hyun, Myoungho ShinAbstract:It is important to estimate the exact rotor speed for field weakening operation in the speed sensorless stator flux oriented (SFO) induction motor drive. Several methods have been reported to estimate exactly the speed in the speed sensorless system. In this paper, we apply two Observer-based methods, the Luenberger Observer (LO) and the Kalman filter (KF) to SFO induction motor drive in order to achieve a speed sensorless operation in field weakening region. Two control methods are reviewed and discussed. The operation characteristics of these methods in the field weakening region is compared by simulation and experiment.
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Speed sensorless stator flux-oriented control of induction motor in the field weakening region using Luenberger Observer
IEEE 34th Annual Conference on Power Electronics Specialist 2003. PESC '03., 1Co-Authors: Tae-sung Kuen, Myoungho Shin, Dongseok HyunAbstract:In a conventional method speed, speed sensorless stator flux-oriented (SFO) induction motor drive, when the estimated speed is transformed into the sampled-data model using the first-forward difference approximation, the sampled-data model has a modeling error which, in turn, produces an error in the rotor speed estimation. The error included in the estimated speed is removed by the use of a low pass filter (LPF). As the result, the delay of the estimated speed occurs in transients by the use of the LPF. This paper investigates the problem of a conventional speed sensorless SFO system due to the delay of estimated speed in the field weakening region. In addition, this paper proposes a method to estimate exactly speed by using Luenberger Observer. The proposed method is verified by simulation and experiment with a 5-hp induction motor drive.
Asghar Taheri - One of the best experts on this subject based on the ideXlab platform.
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full order Luenberger Observer based on fuzzy logic control for sensorless field oriented control of a single sided linear induction motor
Isa Transactions, 2016Co-Authors: Mohammad Hosein Holakooie, Mansour Ojaghi, Asghar TaheriAbstract:This paper investigates sensorless indirect field oriented control (IFOC) of SLIM with full-order Luenberger Observer. The dynamic equations of SLIM are first elaborated to draw full-order Luenberger Observer with some simplifying assumption. The Observer gain matrix is derived from conventional procedure so that Observer poles are proportional to SLIM poles to ensure the stability of system for wide range of linear speed. The operation of Observer is significantly impressed by adaptive scheme. A fuzzy logic control (FLC) is proposed as adaptive scheme to estimate linear speed using speed tuning signal. The parameters of FLC are tuned using an off-line method through chaotic optimization algorithm (COA). The performance of the proposed Observer is verified by both numerical simulation and real-time hardware-in-the-loop (HIL) implementation. Moreover, a detailed comparative study among proposed and other speed Observers is obtained under different operation conditions.
Tae-sung Kwon - One of the best experts on this subject based on the ideXlab platform.
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Speed sensorless stator flux-oriented control of induction motor in the field weakening region using Luenberger Observer
IEEE Transactions on Power Electronics, 2005Co-Authors: Tae-sung Kwon, Myoungho Shin, Dongseok HyunAbstract:In a conventional speed sensorless stator flux-oriented (SFO) induction motor drive, when the estimated speed is transformed into the sampled-data model using the first-forward difference approximation, the sampled-data model has a modeling error which, in turn, produces an error in the rotor speed estimation. The error included in the estimated speed is removed by the use of a low pass filter (LPF). As the result, the delay of the estimated speed occurs in transients by the use of the LPF. This paper investigates the problem of a conventional speed sensorless SFO system due to the delay of the estimated speed in the field weakening region. In addition, this paper proposes a method to estimate exactly speed by using Luenberger Observer. The proposed method is verified by the simulation and experiment with a 5-hp induction motor drive.
Mohammad Hosein Holakooie - One of the best experts on this subject based on the ideXlab platform.
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full order Luenberger Observer based on fuzzy logic control for sensorless field oriented control of a single sided linear induction motor
Isa Transactions, 2016Co-Authors: Mohammad Hosein Holakooie, Mansour Ojaghi, Asghar TaheriAbstract:This paper investigates sensorless indirect field oriented control (IFOC) of SLIM with full-order Luenberger Observer. The dynamic equations of SLIM are first elaborated to draw full-order Luenberger Observer with some simplifying assumption. The Observer gain matrix is derived from conventional procedure so that Observer poles are proportional to SLIM poles to ensure the stability of system for wide range of linear speed. The operation of Observer is significantly impressed by adaptive scheme. A fuzzy logic control (FLC) is proposed as adaptive scheme to estimate linear speed using speed tuning signal. The parameters of FLC are tuned using an off-line method through chaotic optimization algorithm (COA). The performance of the proposed Observer is verified by both numerical simulation and real-time hardware-in-the-loop (HIL) implementation. Moreover, a detailed comparative study among proposed and other speed Observers is obtained under different operation conditions.
