A Predictive Torque Control for the Synchronous Reluctance Machine Taking Into Account the Magnetic Cross Saturation

Morales-Caporal, Roberto; Pacas, Mario

doi:10.1109/tie.2007.891783

Cited by 107 publications

(32 citation statements)

References 8 publications

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“…The electrical frequency is assumed to be constant during the control period which is a valid assumption for most drive systems because mechanical time constants exceed by several orders of magnitude. Solving (6) and (7) for the predicted flux linkages and yields (8) (9) The predicted currents are finally obtained by using the inverse function given in (5).…”

Section: B Current Predictionmentioning

confidence: 99%

“…However, little has been done in incorporating machine nonlinearities like saturation and cross-coupling directly in respective control algorithms. An approximation using nonlinear stationary inductances in controlling synchronous reluctance motors was proposed by Morales-Caporal and Pacas [6]. Weigel and Mutschler linearize the motor equations within a control period and adjust control parameters according to the operation point [7].…”

Section: Introductionmentioning

confidence: 99%

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Predictive current control of saturated cross-coupled permanent magnet synchronous machines

Richter

Gemasmer

Doppelbauer

2014

2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion

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Abstract-Highly utilized permanent magnet synchronous machines show magnetic saturation and cross-coupling effects. These phenomena are described by nonlinear differential equations and make feedback current control of the machine challenging. State of the art current control methods usually ignore these effects and hence do not produce optimal results in transient operation or in operation at the inverter voltage limit. Therefore, this paper presents a method to design a current controller taking into account saturation and dynamic crosscoupling. Feed forward calculation of transient quantities in realtime enables complete decoupling and dead-beat behavior which is experimentally validated by test bench measurements. With this approach, strongly nonlinear, highly utilized synchronous machines can be successfully controlled achieving best control quality in all operational conditions.

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Section: B Current Predictionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Predictive current control of saturated cross-coupled permanent magnet synchronous machines

Richter

Gemasmer

Doppelbauer

2014

2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion

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“…The six AVs (u 1 ,…,u 6 ) have different influence on the torque as well as on the flux. Therefore, sector comparators preselect the two most favorable voltage space phasors and the "on" time t AV is calculated for each of them [9].…”

Section: Direct Mean Torque Controlmentioning

confidence: 99%

“…By assuming a linear shape of the torque during a switching interval, in which an AV is applied during the time t AV and a ZV during t ZV , the "virtual hysteresis width" in the steady state can be calculated as: And t ZV can be also calculated by using the subtraction (9). Both methods are here investigated, since both have been utilized on the SynRM in order to obtain an optimum performance in a wide range of speeds.…”

Section: Peculiarity Of Dmtc At High Stator Frequenciesmentioning

confidence: 99%

Digital implementation of a direct mean torque control for AC servo drives based on a hybrid DSP/FPGA controller system

Morales-Caporal

Pacas

2008

2008 11th IEEE International Power Electronics Congress

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This paper presents the digital implementation of a Direct Mean Torque Control (DMTC) for AC servo drives. DMTC combines the excellent dynamic performance of the Direct Torque Control (DTC) with the advantages of inherently constant switching frequency and time equidistant control algorithms for suitable digital implementation. The basic idea is to predict the inevitable torque ripple in steady state and match it at the end of the cycle, so that, the mean torque is directly controlled. The criteria on how to preselect the appropriate voltage space phasor depend on the state of the machine and on the deviations of stator flux and electromagnetic torque at the end of the cycle.Experimental results using a hybrid digital system with a digital signal processor (DSP) and a fieldprogrammable-gate-array (FPGA) and an AC servo machine verify the effectiveness of the proposed control scheme.

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“…In the recent years the synchronous reluctance motor (SynRM) has been considered as a serious replacement for induction motors (IMs) and permanent magnet synchronous (PMSM) drives in various control applications, such as torque control [1][2][3], fault tolerance [4], and power quality improvement [5]. The main characteristic of these motors is their simple and rugged structure.…”

Section: Introductionmentioning

confidence: 99%

Practical Implementation of Novel Robust Position Control Scheme for Synchronous Reluctance Motor

Nabipour

Madani

Zarchi

2015

Electric Power Components and Systems

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A Predictive Torque Control for the Synchronous Reluctance Machine Taking Into Account the Magnetic Cross Saturation

Cited by 107 publications

References 8 publications

Predictive current control of saturated cross-coupled permanent magnet synchronous machines

Predictive current control of saturated cross-coupled permanent magnet synchronous machines

Digital implementation of a direct mean torque control for AC servo drives based on a hybrid DSP/FPGA controller system

Practical Implementation of Novel Robust Position Control Scheme for Synchronous Reluctance Motor

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