Iron loss and parameter measurement of permanent magnet synchronous machines

Richter, Jan; Dollinger, Andreas; Doppelbauer, Martin

doi:10.1109/icelmach.2014.6960401

Cited by 30 publications

(22 citation statements)

References 14 publications

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“…The measurement routine of the flux linkages is strongly oriented on [9]. It establishes all the desired current sampling points sequentially while maintaining a certain machine temperature.…”

Section: Flux Linkage Measurementsmentioning

confidence: 99%

A hybrid permanent magnet and wound field synchronous machine with displaced reluctance axis capable of symmetric four quadrant operation

Winzer

Doppelbauer

2016

2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe)

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This paper presents a novel hybrid permanent magnet and wound field synchronous machine geometry with a displaced reluctance axis. This concept is known for improving motor operation performance and efficiency at the cost of an inferior generator operation. To overcome this disadvantage, the proposed machine geometry is capable of inverting the magnetic asymmetry dynamically. Thereby, the positive effects of the magnetic asymmetry can be used in any operation point. This paper examines the theoretical background and shows the benefits of this geometry by means of simulation and measurement. The prototype achieves an increase in torque of 4 % and an increase in efficiency of 2 percentage points over a conventional electrically excited synchronous machine.

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Section: Flux Linkage Measurementsmentioning

confidence: 99%

A hybrid permanent magnet and wound field synchronous machine with displaced reluctance axis capable of symmetric four quadrant operation

Winzer

Doppelbauer

2016

2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe)

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“…The flux linkages can be identified by stationary measurements at constant speed [11]. Then (1) and (2) can be solved for the flux linkages with all other quantities being measured.…”

Section: A Identification Of Flux Linkage Functionsmentioning

confidence: 99%

Transient trajectory control of permanent magnet synchronous machines with nonlinear magnetics

Richter

Bauerle

Gemassmer

et al. 2015

2015 IEEE International Conference on Industrial Technology (ICIT)

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Abstract-High performance interior permanent magnet synchronous machines show nonlinear magnetics due to saturation and cross-coupling. Nonlinear differential equations describe these phenomena and make feedback control challenging. This paper presents a predictive control method to precisely control the dynamics of these machines. Four real-time capable strategies to online identify transient trajectories are proposed: Two straight line trajectories, a strategy that yields a fast torque response and a strategy that reaches the reference values in a short amount of time. A predictive control method to force the machine to precisely follow the selected trajectory is developed and analyzed using simulations and test bench measurements. Thus, advantages and disadvantages of specific trajectories are identified. This allows the selection of a proper strategy depending on the drive requirements.

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“…There are numerous identification methods, but in general all procedures can be categorized as offline or online methods [4]. Offline methods use an ohmmeter to measure the stator resistance and either locked-rotor or steadystate tests to identify nonlinear magnetics [5,6]. However, a test-bench is required and manufacturing tolerances as well as parameter variations during drive operation are neglected.…”

Section: Introductionmentioning

confidence: 99%

Predictive current control and online parameter identification of interior permanent magnet synchronous machines

Decker

Richter

Braun

2016

2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe)

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This paper presents an online parameter identification method for interior permanent magnet synchronous machines with nonlinear magnetics. Usually model based control schemes are used to ensure dynamic, stable and accurate control. These schemes contain machine models with offline measured parameters that are stored in lookup tables. Extensive offline parametrization can be avoided when parameters are obtained online during regular drive operation. The proposed online parameter identification method enables fast identification of differential inductances and flux linkages within the short duration of two control periods using manipulated reference currents. Thereby, online identification of the parameter lookup tables and self-commissioning of deadbeat controllers is possible.

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Iron loss and parameter measurement of permanent magnet synchronous machines

Cited by 30 publications

References 14 publications

A hybrid permanent magnet and wound field synchronous machine with displaced reluctance axis capable of symmetric four quadrant operation

A hybrid permanent magnet and wound field synchronous machine with displaced reluctance axis capable of symmetric four quadrant operation

Transient trajectory control of permanent magnet synchronous machines with nonlinear magnetics

Predictive current control and online parameter identification of interior permanent magnet synchronous machines

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