EPE Association: EPE 2013 - LS6f: Control of adjustable speed AC drives

EPE 2013 - LS6f: Control of adjustable speed AC drives
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2013 ECCE Europe - Conference > EPE 2013 - Topic 11: Adjustable speed drives > EPE 2013 - LS6f: Control of adjustable speed AC drives

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   Continuous Set Nonlinear Model Predictive Control for PMSM Drives
By Zhixun MA, Saeid SAEIDI, Ralph KENNEL [View]
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Abstract: A continuous set nonlinear model predictive control (CS-NMPC) for a permanent-magnet synchronous machine (PMSM) is proposed. With an effective cost function optimization algorithm, the output voltage vectors are continuous. Compared with finite set model predictive control (FS-MPC), CS-NMPC can decrease the current and torque ripple dramatically, and have the same dynamic performance. Furthermore, it is robust to parameter variations and can successfully decouple the independent control parameters. Using model based design (MBD), CS-NMPC is implemented on a field programmable gate array (FPGA) with parallel and pipeline processing techniques in short execution time. Experimental results illustrate the high performance of the strategy for PMSM drives.

   Different Virtual Stator Winding Configurations of Open-Winding Five-Phase PM Machines for Wide Speed Range without Flux Weakening Operation
By Ngac Ky NGUYEN, Eric SEMAIL, Xavier KESTELYN, Fabien MEINGUET, Paul SANDULESCU, Bassel ASLAN [View]
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Abstract: This paper presents a specific control strategy of double-ended inverter system for wide-speed range of open-end winding five phase PM machines. Different virtual winding configurations (star, pentagon, pentacle and bipolar) can be obtained by choosing the appropriated switching sequences of two inverters. The motor’s speed range is thus increased.

   Variable Switching Point Predictive Torque Control for the Three-Level Neutral Point Clamped Inverter
By Peter STOLZE, Petros KARAMANAKOS, Ralph KENNEL, Stefanos MANIAS, Toit MOUTON [View]
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Abstract: In this paper the recently introduced control strategy referred as variable switching point predictive torquecontrol (VSP2TC) is employed to control a three-level neutral point clamped (NPC) voltage source inverterdriving an induction machine (IM). Based on a predictive torque control (PTC) scheme, the controlleraims to reduce the high current and torque ripples that occur. In order to actualize this, a variableswitching point is calculated based on an optimization problem formulated to reduce the torque ripple.At this switching point the switches of the inverter change their state to meet all the control objectives,i.e. minimization of the torque ripple, regulation of the torque and the flux magnitude to their references,and balancing of the neutral point potential. Experimental results that verify the performance of theproposed control algorithm are presented.

EPE 2013 - LS6f: Control of adjustable speed AC drives
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2013 ECCE Europe - Conference > EPE 2013 - Topic 11: Adjustable speed drives > EPE 2013 - LS6f: Control of adjustable speed AC drives
	[return to parent folder]

	Continuous Set Nonlinear Model Predictive Control for PMSM Drives By Zhixun MA, Saeid SAEIDI, Ralph KENNEL	[View] [Download]
Abstract: A continuous set nonlinear model predictive control (CS-NMPC) for a permanent-magnet synchronous machine (PMSM) is proposed. With an effective cost function optimization algorithm, the output voltage vectors are continuous. Compared with finite set model predictive control (FS-MPC), CS-NMPC can decrease the current and torque ripple dramatically, and have the same dynamic performance. Furthermore, it is robust to parameter variations and can successfully decouple the independent control parameters. Using model based design (MBD), CS-NMPC is implemented on a field programmable gate array (FPGA) with parallel and pipeline processing techniques in short execution time. Experimental results illustrate the high performance of the strategy for PMSM drives.

	Different Virtual Stator Winding Configurations of Open-Winding Five-Phase PM Machines for Wide Speed Range without Flux Weakening Operation By Ngac Ky NGUYEN, Eric SEMAIL, Xavier KESTELYN, Fabien MEINGUET, Paul SANDULESCU, Bassel ASLAN	[View] [Download]
Abstract: This paper presents a specific control strategy of double-ended inverter system for wide-speed range of open-end winding five phase PM machines. Different virtual winding configurations (star, pentagon, pentacle and bipolar) can be obtained by choosing the appropriated switching sequences of two inverters. The motor’s speed range is thus increased.

	Variable Switching Point Predictive Torque Control for the Three-Level Neutral Point Clamped Inverter By Peter STOLZE, Petros KARAMANAKOS, Ralph KENNEL, Stefanos MANIAS, Toit MOUTON	[View] [Download]
Abstract: In this paper the recently introduced control strategy referred as variable switching point predictive torquecontrol (VSP2TC) is employed to control a three-level neutral point clamped (NPC) voltage source inverterdriving an induction machine (IM). Based on a predictive torque control (PTC) scheme, the controlleraims to reduce the high current and torque ripples that occur. In order to actualize this, a variableswitching point is calculated based on an optimization problem formulated to reduce the torque ripple.At this switching point the switches of the inverter change their state to meet all the control objectives,i.e. minimization of the torque ripple, regulation of the torque and the flux magnitude to their references,and balancing of the neutral point potential. Experimental results that verify the performance of theproposed control algorithm are presented.