EPE Association: EPE 2017 - LS5c: Drive Control using Developing Methods

EPE 2017 - LS5c: Drive Control using Developing Methods
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2017 ECCE Europe - Conference > EPE 2017 - Topic 04: Electrical Machines and Drive Systems > EPE 2017 - LS5c: Drive Control using Developing Methods

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   An Induction Motor Drive Scheme Generating Twenty-Four Sided Voltage Space Vector Structure with Linear Modulation Range Near to Base Speed
By Krishna RAJ [View]
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Abstract: In this paper, a drive scheme generating 24-sided polygonal voltage space vector structure using aninverter topology with single DC source is proposed. A 24-sided structure eliminates dominant low-orderphase voltage harmonics including and up to seventeenth and nineteenth orders throughout thespeed range including step operation. The power circuit has a two-level inverter and two low voltagecascaded H-bridge cells fed with capacitors. The linear modulation range is extended to 99.42\% of thebase speed with such a polygonal structure. A reduced PWM switching sequence resulting inminimum pole voltage transitions for the two-level inverter and shifting relatively higher frequencyoperation to low voltage H-Bridge inverters feature the drive scheme for controlling losses.

   Compensation of voltage unbalance of a standalone CDFIG using repetitive rotor current control
By Maria EL ACHKAR [View]
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Abstract: This paper analyzes the unbalance problem of a standalone cascaded doubly-fed induction generatorfeeding unbalanced three-phase load. Under this working condition, the output voltages become un-balanced and give rise to a negative sequence component. The classic vector control strategy does notprovide the desired performance. A compensation method is proposed to balance the stator voltages.The approach is developed based on a repetitive rotor current control implemented in a single positivereference frame. Simulations attest of the ability of the controller to reject the unbalanced load impacton the generated voltages.

   Constrained non-stationary state feedback speed control of PMSM
By Tomasz TARCZEWSKI [View]
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Abstract: In this paper, constrained non-stationary state feedback speed controller for PMSM drive fed by VSI with SiC MOSFETs is presented and experimentally verified. The novelty of proposed approach lies in direct design of non-stationary state feedback controller for non-linear and cross-coupled model of the plant. An artificial bee colony (ABC) optimization algorithm is applied to automatic selection of non-stationary state feedback speed controller coefficients. In order to assure safety operation of the drive, constraints handling method is a posteriori added to non-stationary state feedback control algorithm. Simulation and experimental results prove that proposed control algorithm guarantees efficient operation of PMSM.

   Control of induction machine supplied by a current source inverter using the multi-scalar transformation and backstepping approach
By Marcin MORAWIEC [View]
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Abstract: The paper describes the voltage control technique of squire-cage induction machines supplied by a current source inverter. The control system is based on new transformation of the electric drive system (machine and inverter) state variables to the multi-scalar variables form. The backstepping approach is used to obtain the feedback control law. The control system contains the structure of the observer backstepping which is named Z. The paper contains the theoretical analysis of the control system with the new multi-scalar proposed transformation. The control system performances and mathematical dependences are confirmed by the experimental results.

EPE 2017 - LS5c: Drive Control using Developing Methods
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2017 ECCE Europe - Conference > EPE 2017 - Topic 04: Electrical Machines and Drive Systems > EPE 2017 - LS5c: Drive Control using Developing Methods
	[return to parent folder]

	An Induction Motor Drive Scheme Generating Twenty-Four Sided Voltage Space Vector Structure with Linear Modulation Range Near to Base Speed By Krishna RAJ	[View] [Download]
Abstract: In this paper, a drive scheme generating 24-sided polygonal voltage space vector structure using aninverter topology with single DC source is proposed. A 24-sided structure eliminates dominant low-orderphase voltage harmonics including and up to seventeenth and nineteenth orders throughout thespeed range including step operation. The power circuit has a two-level inverter and two low voltagecascaded H-bridge cells fed with capacitors. The linear modulation range is extended to 99.42\% of thebase speed with such a polygonal structure. A reduced PWM switching sequence resulting inminimum pole voltage transitions for the two-level inverter and shifting relatively higher frequencyoperation to low voltage H-Bridge inverters feature the drive scheme for controlling losses.

	Compensation of voltage unbalance of a standalone CDFIG using repetitive rotor current control By Maria EL ACHKAR	[View] [Download]
Abstract: This paper analyzes the unbalance problem of a standalone cascaded doubly-fed induction generatorfeeding unbalanced three-phase load. Under this working condition, the output voltages become un-balanced and give rise to a negative sequence component. The classic vector control strategy does notprovide the desired performance. A compensation method is proposed to balance the stator voltages.The approach is developed based on a repetitive rotor current control implemented in a single positivereference frame. Simulations attest of the ability of the controller to reject the unbalanced load impacton the generated voltages.

	Constrained non-stationary state feedback speed control of PMSM By Tomasz TARCZEWSKI	[View] [Download]
Abstract: In this paper, constrained non-stationary state feedback speed controller for PMSM drive fed by VSI with SiC MOSFETs is presented and experimentally verified. The novelty of proposed approach lies in direct design of non-stationary state feedback controller for non-linear and cross-coupled model of the plant. An artificial bee colony (ABC) optimization algorithm is applied to automatic selection of non-stationary state feedback speed controller coefficients. In order to assure safety operation of the drive, constraints handling method is a posteriori added to non-stationary state feedback control algorithm. Simulation and experimental results prove that proposed control algorithm guarantees efficient operation of PMSM.

	Control of induction machine supplied by a current source inverter using the multi-scalar transformation and backstepping approach By Marcin MORAWIEC	[View] [Download]
Abstract: The paper describes the voltage control technique of squire-cage induction machines supplied by a current source inverter. The control system is based on new transformation of the electric drive system (machine and inverter) state variables to the multi-scalar variables form. The backstepping approach is used to obtain the feedback control law. The control system contains the structure of the observer backstepping which is named Z. The paper contains the theoretical analysis of the control system with the new multi-scalar proposed transformation. The control system performances and mathematical dependences are confirmed by the experimental results.