EPE Association: EPE 2016 - LS3c: Industrial Issues

EPE 2016 - LS3c: Industrial Issues
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2016 ECCE Europe - Conference > EPE 2016 - Topic 04: Electrical Machines and Drive Systems > EPE 2016 - LS3c: Industrial Issues

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   An electric machine design procedure that includes multiple cost scenarios
By Christian DUBAR [View]
[Download]

Abstract: This paper presents a procedure to include different cost scenarios of raw materials into the design ofelectric machines. The ratio between performance and material cost is visualized over a number ofdifferent cost scenarios. It is thereby possible to see not only if a specific design is competitive underthe current market circumstances, but also to compare the sensitiveness for fluctuations in the materialprices.

   Minimum Losses Point Tracking and Minimum Current Point Tracking in Interior PMSMs
By Pablo MORENO-TORRES [View]
[Download]

Abstract: Advanced control strategies for efficiency optimization in interior PMSMs are usually model-based, potentially providing very accurate results and good performance at the cost of parameter dependency and the associated drawbacks. Search-based methods, on the contrary, perform more modestly but depend neither on models nor on parameters. This paper compares both approaches in terms of steady-state efficiency.

   Observer-based Pole Placement Control for a Double Conical High-Speed Bearingless Permanent Magnet Synchronous Motor
By Gael MESSAGER [View]
[Download]

Abstract: The pole placement control with motion decoupling and integral action, according to the full modal synthesis, is addressed in this paper, to control a 1 kW, 18000 min-1 double conical Bearingless Permanent Magnet Synchronous Motor prototype. An electro-mechanical model of the prototype is derived analytically together with the design of the control scheme. The design of a pole placement scheme, with integral action and motion decoupling, is derived, as well as the design of a Luenberger observer. A multi-variable imbalance force rejection filter is integrated in the control scheme, to prevent actuator overloading. The closed-loop performances as well as the sensitivity functions, for the different motions, are measured on a test-bench and compared to their analytic expressions. Operation at nominal speed is finally demonstrated.

   Sensitivity Analysis on Production Tolerances for Electric Drive Systems in Automotive Application
By Markus OTT [View]
[Download]

Abstract: Production tolerances in electric drive systems with interior permanent magnet synchronus machines(IPMSM) lead to unavoidable deviations in torque and power. This paper presents an investigation of theunderlying effects utilizing simulations and measurements as well as methods for detection. In particular,deviations of the sensors and of the machine are studied. For the machine, the permanent magnet flux andthe air gap thickness are identified as two main influence factors. Finite Element Analysis (FEA) is usedto model deviations and to calculate flux tables in the id-iq-plane. Also the influence of current and anglemeasurement errors are analytically analyzed. The simulated results are confirmed at the test bench,performing measurements with custom-built limit sample machines. Torque deviations of more than10\% are detected. Additionally, a method for detecting the individual deviation of an individual machineis introduced. Measurement of short-circuit current and open-circuit voltage are employed since bothquantities are measurable with little effort. The combination of the knowledge about the effects in themachine and the detection methods could be used for compensation.

EPE 2016 - LS3c: Industrial Issues
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2016 ECCE Europe - Conference > EPE 2016 - Topic 04: Electrical Machines and Drive Systems > EPE 2016 - LS3c: Industrial Issues
	[return to parent folder]

	An electric machine design procedure that includes multiple cost scenarios By Christian DUBAR	[View] [Download]
Abstract: This paper presents a procedure to include different cost scenarios of raw materials into the design ofelectric machines. The ratio between performance and material cost is visualized over a number ofdifferent cost scenarios. It is thereby possible to see not only if a specific design is competitive underthe current market circumstances, but also to compare the sensitiveness for fluctuations in the materialprices.

	Minimum Losses Point Tracking and Minimum Current Point Tracking in Interior PMSMs By Pablo MORENO-TORRES	[View] [Download]
Abstract: Advanced control strategies for efficiency optimization in interior PMSMs are usually model-based, potentially providing very accurate results and good performance at the cost of parameter dependency and the associated drawbacks. Search-based methods, on the contrary, perform more modestly but depend neither on models nor on parameters. This paper compares both approaches in terms of steady-state efficiency.

	Observer-based Pole Placement Control for a Double Conical High-Speed Bearingless Permanent Magnet Synchronous Motor By Gael MESSAGER	[View] [Download]
Abstract: The pole placement control with motion decoupling and integral action, according to the full modal synthesis, is addressed in this paper, to control a 1 kW, 18000 min-1 double conical Bearingless Permanent Magnet Synchronous Motor prototype. An electro-mechanical model of the prototype is derived analytically together with the design of the control scheme. The design of a pole placement scheme, with integral action and motion decoupling, is derived, as well as the design of a Luenberger observer. A multi-variable imbalance force rejection filter is integrated in the control scheme, to prevent actuator overloading. The closed-loop performances as well as the sensitivity functions, for the different motions, are measured on a test-bench and compared to their analytic expressions. Operation at nominal speed is finally demonstrated.

	Sensitivity Analysis on Production Tolerances for Electric Drive Systems in Automotive Application By Markus OTT	[View] [Download]
Abstract: Production tolerances in electric drive systems with interior permanent magnet synchronus machines(IPMSM) lead to unavoidable deviations in torque and power. This paper presents an investigation of theunderlying effects utilizing simulations and measurements as well as methods for detection. In particular,deviations of the sensors and of the machine are studied. For the machine, the permanent magnet flux andthe air gap thickness are identified as two main influence factors. Finite Element Analysis (FEA) is usedto model deviations and to calculate flux tables in the id-iq-plane. Also the influence of current and anglemeasurement errors are analytically analyzed. The simulated results are confirmed at the test bench,performing measurements with custom-built limit sample machines. Torque deviations of more than10\% are detected. Additionally, a method for detecting the individual deviation of an individual machineis introduced. Measurement of short-circuit current and open-circuit voltage are employed since bothquantities are measurable with little effort. The combination of the knowledge about the effects in themachine and the detection methods could be used for compensation.