The Experts below are selected from a list of 2667 Experts worldwide ranked by ideXlab platform
A I Maswood - One of the best experts on this subject based on the ideXlab platform.
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a novel variable Hysteresis Band current control of three phase three level unity pf rectifier with constant switching frequency
IEEE Transactions on Power Electronics, 2006Co-Authors: A I MaswoodAbstract:A Simple and novel variable Hysteresis Band current control technique for three-phase three-level unity power factor (PF) rectifier is proposed in this paper. The Hysteresis Band is controlled as variations of the rectifier input voltage and output dc link voltage to achieve constant switching frequency at any operating conditions, i.e., at rated and below and above the rated conditions. The rectifier has the characteristic of easy implementation, and draws a nearly sinusoidal current at unity input PF. Theoretical and predicted results of its analysis are verified initially through digital simulation, and confirmed by using an experimental prototype
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a novel variable Hysteresis Band current control of three phase three level rectifier with constant switching frequency
IEEE Power Engineering Society General Meeting 2005, 2005Co-Authors: A I MaswoodAbstract:A simple and novel variable Hysteresis Band current control technique for three-phase three-level front-end rectifier of an adjustable speed drive (ASD) is proposed in this paper. The Hysteresis Band is controlled as variations of input voltage and output dc link voltage to achieve constant switching frequency at any operating conditions. The rectifier has the characteristic of drawing nearly sinusoidal current with unity power factor. Theoretical results of its analysis are verified initially through digital simulation, and confirmed by using an experimental prototype.
Engin Ozdemir - One of the best experts on this subject based on the ideXlab platform.
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a new Hysteresis Band current control technique for a shunt active filter
Turkish Journal of Electrical Engineering and Computer Sciences, 2015Co-Authors: Murat Kale, Engin OzdemirAbstract:This paper proposes a Hysteresis Band (HB) current control technique to reduce the power losses in a shunt active filter. During a switching period in the zero-crossing region, the inverter output current flows through a transistor. By changing the direction, it flows through the free-wheeling diode of the same switch in an inverter leg, or vice versa. The shunt active filter current typically has 6 zero-crossing regions during a fundamental frequency cycle. This paper presents a HB current control technique where there is not any switching in these 6 zero-crossing regions per period, which results in reducing the power losses. The experimental results clearly show that the power losses of the shunt active filter are reduced by using the proposed technique.
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an adaptive Hysteresis Band current controller for shunt active power filter
Electric Power Systems Research, 2005Co-Authors: Murat Kale, Engin OzdemirAbstract:Abstract In this paper, an adaptive Hysteresis Band current controller is proposed for active power filter to eliminate harmonics and to compensate the reactive power of three-phase rectifier. The adaptive Hysteresis Band current controller, proposed by Bose [An adaptive Hysteresis Band current control technique of a voltage feed PWM inverter for machine drive system, IEEE Trans. Ind. Electron. 37 (5) (1990) 402–406] for electrical machine drives, is adapted to active power filter (APF). The adaptive Hysteresis Band current controller changes the Hysteresis Bandwidth according to modulation frequency, supply voltage, dc capacitor voltage and slope of the i c * reference compensator current wave. The Hysteresis Band current controller determines the switching signals of the APF, and the algorithm based on an extension of synchronous reference frame theory (d-q-0) is used to determine the suitable current reference signals. The results of simulation study of new APF control technique presented in this paper is found quite satisfactory to eliminate harmonics and reactive power components from utility current. All of the studies have been carried out through detail digital dynamic simulation using the MATLAB Simulink Power System Toolbox. The APF is found effective to meet IEEE 519 standard recommendations on harmonics levels.
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a novel adaptive Hysteresis Band current controller for shunt active power filter
International Conference on Control Applications, 2003Co-Authors: Murat Kale, Engin OzdemirAbstract:In this paper, a novel adaptive Hysteresis Band current controller is proposed for active power filter to eliminate harmonics and to compensate the reactive power of three-phase rectifier. The novel adaptive Hysteresis Band current controller changes the Hysteresis Bandwidth according to modulation frequency, supply voltage, DC capacitor voltage and slope of the i/sub c//sup */ reference compensator current wave. The Hysteresis Band current controller determines the switching signals of the active power filter (APF), and the algorithm based on an extension of synchronous reference frame theory (d-q-0) is used to determine the suitable current reference signals. The results of simulation study of new APF control technique presented in this paper is found quite satisfactory to eliminate harmonics and reactive power components from utility current. All of these studies have been carried out through detail digital dynamic simulation using the Matlab simulink power system toolbox. The APF is found effective to meet IEEE 519 standard recommendations on harmonics levels.
David G Dorrell - One of the best experts on this subject based on the ideXlab platform.
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field oriented control based on Hysteresis Band current controller for a permanent magnet synchronous motor driven by a direct matrix converter
Iet Power Electronics, 2018Co-Authors: Jianwei Zhang, Li Li, David G Dorrell, Haitao Yang, Tianshi Wang, Dylan Dahchuan LuAbstract:The Hysteresis Band controller offers excellent dynamic performance. It has been widely researched and applied to the voltage source inverter and inverter fed drives, however it has not been investigated within the context of a matrix converter or a matrix converter based motor drive. In this study, both fixed-Band and sinusoidal-Band Hysteresis current controllers are proposed and developed for a direct matrix converter. A comprehensive comparative evaluation of the two methods is then carried out. Both methods have fast dynamic performance and they inherently integrate the line modulation technique of the virtual rectifier stage into the overall modulation. Surge currents are prevented with the proposed scheme. The sinusoidal-Band Hysteresis controller demonstrates lower total harmonic distortion at the expense of higher average switching frequency, which is only significantly observable at very high sampling frequencies. The proposed controller is integrated with the field-oriented control to drive a matrix converter fed permanent magnet synchronous machine. The proposed methods are simple and incur a light computational burden, which advances the practical applications of matrix converters in AC motor drives. The simulation and experiment results demonstrate the effectiveness and feasibility of the proposed scheme.
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Hysteresis Band current controller based field oriented control for an induction motor driven by a direct matrix converter
Conference of the Industrial Electronics Society, 2017Co-Authors: Jianwei Zhang, Li Li, Lei Zhang, David G DorrellAbstract:This paper presents work on the Hysteresis Band control for output current regulation in a direct matrix converter in order to drive an induction motor. The Hysteresis Band controller offers excellent dynamic performance. It has been extensively researched for the voltage source inverter and inverter based drive systems, but it has not been investigated within the context of a matrix converter or a matrix converter based motor drive. Firstly, this paper proposes a fixed-Band Hysteresis current controller for a matrix converter to track the prescribed current references, and then a sinusoidal-Band Hysteresis current controller is proposed. Both methods have fast dynamic performance and they inherently integrate the line modulation technique of the virtual rectifier stage into the overall modulation. The extra modulation stage is not required and the surge current is inherently prevented. The sinusoidal-Band Hysteresis controller demonstrates that it generates lower harmonic content at the expense of the higher average switching frequency. Following this, both methods are tested as a drive for an induction motor with field-oriented control. With the matrix-converter-based drive system, one significant benefit is that the braking chopper is removed due to the bidirectional feature. The methods are simple and have light computation burden. The obtained results demonstrate the effectiveness and feasibility of the proposed scheme. The experimental work is being carried out to support the proposed scheme.
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IECON - Hysteresis Band current controller based field-oriented control for an induction motor driven by a direct matrix converter
IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017Co-Authors: Jianwei Zhang, Li Li, Lei Zhang, David G DorrellAbstract:This paper presents work on the Hysteresis Band control for output current regulation in a direct matrix converter in order to drive an induction motor. The Hysteresis Band controller offers excellent dynamic performance. It has been extensively researched for the voltage source inverter and inverter based drive systems, but it has not been investigated within the context of a matrix converter or a matrix converter based motor drive. Firstly, this paper proposes a fixed-Band Hysteresis current controller for a matrix converter to track the prescribed current references, and then a sinusoidal-Band Hysteresis current controller is proposed. Both methods have fast dynamic performance and they inherently integrate the line modulation technique of the virtual rectifier stage into the overall modulation. The extra modulation stage is not required and the surge current is inherently prevented. The sinusoidal-Band Hysteresis controller demonstrates that it generates lower harmonic content at the expense of the higher average switching frequency. Following this, both methods are tested as a drive for an induction motor with field-oriented control. With the matrix-converter-based drive system, one significant benefit is that the braking chopper is removed due to the bidirectional feature. The methods are simple and have light computation burden. The obtained results demonstrate the effectiveness and feasibility of the proposed scheme. The experimental work is being carried out to support the proposed scheme.
Murat Kale - One of the best experts on this subject based on the ideXlab platform.
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a new Hysteresis Band current control technique for a shunt active filter
Turkish Journal of Electrical Engineering and Computer Sciences, 2015Co-Authors: Murat Kale, Engin OzdemirAbstract:This paper proposes a Hysteresis Band (HB) current control technique to reduce the power losses in a shunt active filter. During a switching period in the zero-crossing region, the inverter output current flows through a transistor. By changing the direction, it flows through the free-wheeling diode of the same switch in an inverter leg, or vice versa. The shunt active filter current typically has 6 zero-crossing regions during a fundamental frequency cycle. This paper presents a HB current control technique where there is not any switching in these 6 zero-crossing regions per period, which results in reducing the power losses. The experimental results clearly show that the power losses of the shunt active filter are reduced by using the proposed technique.
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A novel Hysteresis Band current controller scheme for three phase AC chopper
International Journal of Electrical Power & Energy Systems, 2013Co-Authors: Murat Kale, Murat Karabacak, Bilal SaracogluAbstract:This paper presents the application of the Hysteresis Band current controller (HBCC) technique to the three phase pulse width modulation (PWM) AC chopper used for the purpose of controlling the magnitude of the sinusoidal currents and voltages applied to an AC load. If the HBCC technique used in the inverters is directly employed in the three phase PWM AC chopper, it causes the AC chopper to fail to provide balanced three phase sinusoidal currents for a three phase AC load. In return, this situation leads some unavoidable and serious faults to occur in the hardware of the three phase PWM AC chopper. In respect to this case, the detailed analysis expressing the related faults is presented. Consequently, for the first time, a novel HBCC technique overcoming these faults is proposed for the three phase PWM AC chopper. The proposed method is tested under various operating conditions and a very precise control performance is achieved. Simulation results prove the feasibility and validity of the proposed method.
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an adaptive Hysteresis Band current controller for shunt active power filter
Electric Power Systems Research, 2005Co-Authors: Murat Kale, Engin OzdemirAbstract:Abstract In this paper, an adaptive Hysteresis Band current controller is proposed for active power filter to eliminate harmonics and to compensate the reactive power of three-phase rectifier. The adaptive Hysteresis Band current controller, proposed by Bose [An adaptive Hysteresis Band current control technique of a voltage feed PWM inverter for machine drive system, IEEE Trans. Ind. Electron. 37 (5) (1990) 402–406] for electrical machine drives, is adapted to active power filter (APF). The adaptive Hysteresis Band current controller changes the Hysteresis Bandwidth according to modulation frequency, supply voltage, dc capacitor voltage and slope of the i c * reference compensator current wave. The Hysteresis Band current controller determines the switching signals of the APF, and the algorithm based on an extension of synchronous reference frame theory (d-q-0) is used to determine the suitable current reference signals. The results of simulation study of new APF control technique presented in this paper is found quite satisfactory to eliminate harmonics and reactive power components from utility current. All of the studies have been carried out through detail digital dynamic simulation using the MATLAB Simulink Power System Toolbox. The APF is found effective to meet IEEE 519 standard recommendations on harmonics levels.
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a novel adaptive Hysteresis Band current controller for shunt active power filter
International Conference on Control Applications, 2003Co-Authors: Murat Kale, Engin OzdemirAbstract:In this paper, a novel adaptive Hysteresis Band current controller is proposed for active power filter to eliminate harmonics and to compensate the reactive power of three-phase rectifier. The novel adaptive Hysteresis Band current controller changes the Hysteresis Bandwidth according to modulation frequency, supply voltage, DC capacitor voltage and slope of the i/sub c//sup */ reference compensator current wave. The Hysteresis Band current controller determines the switching signals of the active power filter (APF), and the algorithm based on an extension of synchronous reference frame theory (d-q-0) is used to determine the suitable current reference signals. The results of simulation study of new APF control technique presented in this paper is found quite satisfactory to eliminate harmonics and reactive power components from utility current. All of these studies have been carried out through detail digital dynamic simulation using the Matlab simulink power system toolbox. The APF is found effective to meet IEEE 519 standard recommendations on harmonics levels.
B K Bose - One of the best experts on this subject based on the ideXlab platform.
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an adaptive Hysteresis Band current control technique of a voltage fed pwm inverter for machine drive system
IEEE Transactions on Industrial Electronics, 1990Co-Authors: B K BoseAbstract:An adaptive Hysteresis-Band control method where the Band is modulated with the system parameters to maintain the modulation frequency to be nearly constant is described. Although the technique is applicable to general AC motor drives and other types of load, an interior permanent magnet (IPM) synchronous machine load is considered. Systematic analytical expressions of the Hysteresis Band are derived as functions of system parameters. An IPM machine drive system with a voltage-fed current-controlled PWM (pulse width modulation) inverter has been computer simulated to study the performance of the proposed method. >