Optimal Control Method For Pmsm By Minimization Of Electrical Losses

Panaitescu, R.C.; Topa, I.

doi:10.1109/optim.1998.707974

Cited by 10 publications

(11 citation statements)

References 4 publications

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“…Cavallaro et al (2005), Cheng and Tesch (2010), Finken (2012), Gemassmer (2015), Jung, Hong, and Nam (2013), Lemmens, Vanassche, and Driesen (2015), Morimoto et al (1990), Niazi, Toliyat, and Goodarzi (2007), Ni et al (2015), Panaitescu and Topa (1998), Preindl and Bolognani (2015), Schröder (2009), Schoonhoven and Uddin (2016), Urasaki, Senjyu, and Uezato (2003); for FW, see e.g. Jung et al (2013), Kim, Jeong, Nam, Yang, and Hwang (2015), Preindl and Bolognani (2013b), Preindl and Bolognani (2015), Schoonhoven and Uddin (2016), Zhang et al (2016); and for maximum torque per voltage (MTPV), see e.g.…”

Section: Literature Reviewmentioning

confidence: 99%

“…For PMSMs (surface-or interior-mounted PMs), MTPC was proposed initially by formulating a convex optimisation problem, where an optimal current vector with minimum magnitude was computed without including the drive's voltage as a constraint (Panaitescu & Topa, 1998). The same control strategy could be mapped to PMA-RSM as the difference in models is not distinct (see Equations (1)−(4) in Section 2.1).…”

Section: Literature Reviewmentioning

confidence: 99%

“…The same control strategy could be mapped to PMA-RSM as the difference in models is not distinct (see Equations (1)−(4) in Section 2.1). Further enhancement for this MTPC depended on developing an iron loss model which, when coupled to the conventional MTPC in Panaitescu and Topa (1998), results in (slightly) better efficiency for high machine speeds. In Urasaki et al (2003), the applied MTPC incorporates a simplified iron loss model based on root-meansquare calculations (for a constant iron loss resistance).…”

Section: Literature Reviewmentioning

confidence: 99%

“…Also, the polynomial fitting of the inductance models with the direct and quadrature (d, q)-stator current components was not discussed in detail. In Panaitescu andTopa (1998), Cavallaro et al (2005), Preindl and Bolognani (2013a), Urasaki et al (2003), Niazi et al (2007) and Lemmens et al (2015), the MTPC optimisation problems did not treat both the optimisation problem beyond rated speed and the effect of magnetic cross-coupling between the (d, q)-axes. Also, the optimal solutions were computed numerically, convergence and/or stability of the algorithm is not entirely guaranteed.…”

Section: Literature Reviewmentioning

confidence: 99%

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A unified theory for optimal feedforward torque control of anisotropic synchronous machines

Eldeeb

Hackl

Horlbeck

et al. 2017

International Journal of Control

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KEYWORDSMaximum torque per ampere (MTPA); maximum torque per current (MTPC); maximum torque per voltage (MTPV); maximum torque per flux (MTPF); maximum current (MC); field weakening (FW); analytical solution; optimal feedforward torque control; efficiency; copper losses; anisotropy; synchronous machine; interior permanent-magnet synchronous machine; reluctance synchronous machine; permanent-magnet-assisted or enhanced synchronous machine; quadrics; quartics; Lagrangian optimisation; operation management ABSTRACT A unified theory for optimal feedforward torque control of anisotropic synchronous machines with non-negligible stator resistance and mutual inductance is presented which allows to analytically compute (1) the optimal direct and quadrature reference currents for all operating strategies, such as maximum torque per current (MTPC), maximum current, field weakening, maximum torque per voltage (MTPV) or maximum torque per flux (MTPF), and (2) the transition points indicating when to switch between the operating strategies due to speed, voltage or current constraints. The analytical solutions allow for an (almost) instantaneous selection and computation of actual operation strategy and corresponding reference currents. Numerical methods (approximating these solutions only) are no longer required. The unified theory is based on one simple idea: all optimisation problems, their respective constraints and the computation of the intersection point(s) of voltage ellipse, current circle or torque, MTPC, MTPV, MTPF hyperbolas are reformulated implicitly as quadrics which allows to invoke the Lagrangian formalism and to find the roots of fourth-order polynomials analytically. The proposed theory is suitable for any anisotropic synchronous machine. Implementation and measurement results illustrate effectiveness and applicability of the theoretical findings in real world.

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Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

See 2 more Smart Citations

A unified theory for optimal feedforward torque control of anisotropic synchronous machines

Eldeeb

Hackl

Horlbeck

et al. 2017

International Journal of Control

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“…Various vector control systems based on mathematical models of the parallel type were proposed by Tong, Morimoto and co-workers [4,5], Panaitescu and Topa [6], Monajemy and Krishman [7], Mademlis and Margaris [9], Cavallaro and colleagues [10,11], etc. Among these control systems, some assume a particular speed control configuration, and some are also applicable to torque control.…”

Section: Introductionmentioning

confidence: 99%

New structures of vector control systems for permanent magnet synchronous motors with core loss

Shinnaka¹

2009

Electrical Engineering Japan

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SUMMARYThis paper investigates and proposes new system structures for vector control of permanent-magnet synchronous motors (PMSMs) with core loss. The proposed vector control systems have the following versatile features. (a) The systems employ the structures allowing control of the stator current through control of the load current. (b) The systems employ unique "stator voltage feedback-use" structures in order to accomplish simply the load current control. (c) The produced torque is directly related to the load current, and the precise torque control can be attained through the load current control. (d) The relation between produced torque and the load current is nonlinear for salient-pole PMSMs similar to the case of no core loss, and a variety of the load current commands can be selected from viewpoints of minimum loss and/or wide speed range drives. The system structures add no constraint to the selection of the load current commands. (e) In addition to the torque control, the speed control can be allowed, where linearity between output of the speed controller and produced torque is kept. The validity of versatile features is verified through the numerical experiments.

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Synchronmaschine

Schröder

Böcker

2021

Elektrische Antriebe – Regelung Von Antriebssystemen

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Optimal Control Method For Pmsm By Minimization Of Electrical Losses

Cited by 10 publications

References 4 publications

A unified theory for optimal feedforward torque control of anisotropic synchronous machines

A unified theory for optimal feedforward torque control of anisotropic synchronous machines

New structures of vector control systems for permanent magnet synchronous motors with core loss

Synchronmaschine

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