Saliency based encoderless predictive torque control without signal injection

Landsmann, P.; Paulus, Dirk; Stolze, Peter; Kennel, Ralph

doi:10.1109/ipec.2010.5543157

Cited by 21 publications

(14 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the implementation, the current rise ∆i s s is measured and the isotropic current rise ∆i s Σ is calculated. This approach was first presented in [10] and has no requirement for a specific injection shape, the only requirement is the presence of a current rise. The consideration of the unknown low frequency part ∆i s LF is described in the next chapter.…”

Section: Model Of the Pmsmmentioning

confidence: 99%

General arbitrary injection approach for synchronous machines

Paulus

Landsmann

Kennel

2013

2013 IEEE International Symposium on Sensorless Control for Electrical Drives and Predictive Control of Electrical Drives and P

View full text Add to dashboard Cite

In this paper, an approach is presented to calculate the rotor position of an permanent magnet synchronous machine from arbitrary current ripples. It makes no difference if the current ripple is generated by an injection or only by the pulse width modulation (PWM). For low speeds, where the current ripple of the PWM is not sufficient, the PWM pulses are shifted in order to increase the current ripple. In the medium and high speed region, this modification of the PWM is not required. Together with a standard field oriented control structure, this verified by experimental results.

show abstract

Section: Model Of the Pmsmmentioning

confidence: 99%

General arbitrary injection approach for synchronous machines

Paulus

Landsmann

Kennel

2013

2013 IEEE International Symposium on Sensorless Control for Electrical Drives and Predictive Control of Electrical Drives and P

View full text Add to dashboard Cite

show abstract

“…Based on the measurement of the current i s s and the rotor angle θ, the equations (15) to (18) predict the behavior of a linear isotropic RSM for one time step ∆t.…”

Section: Model Of the Rsmmentioning

confidence: 99%

“…The estimation approach in [18] utilizes the prediction error caused a Predictive Torque Controller (PTC) that neglects the saliency of the machine. Its application to the Reluctance Machine requires the compensation of a fundamental current circulation term which, particularly in the nonlinear case, depends on precise knowledge of machine parameters.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Reducing the parameter dependency of Encoderless Predictive Torque Control for reluctance machines

Landsmann

Paulus

Stolze

et al. 2010

2010 First Symposium on Sensorless Control for Electrical Drives

Self Cite

View full text Add to dashboard Cite

Encoderless Predictive Torque Control without Signal Injection utilizes internal information of a predictive torque controller to obtain the angle of the rotor saliency. When applying this approach to the reluctance machine the circulation of the current caused by the rotation of the strong saliency needs to be compensated by a parameter dependent term. This paper presents a new technique for compensating the circulation without knowledge of machine parameters. As a result the encoderless control scheme is free of motor parameters and the Predictive Torque Controller gains robustness. The approach is derived mathematically for a reluctance machine and verified with measurement results.

show abstract

“…As injecting an alternating carrier has been proven to be generally more efficient than using a rotating carrier in terms of precision, applicability, versatility, and robustness, most of the scientific works following the work of [5] have focused either on alternating carrier injection or on other arbitrary injection schemes [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Analysis and Exploitation of the Star-Point Voltage of Synchronous Machines for Sensorless Operation

et al. 2019

View full text Add to dashboard Cite

In the field of sensorless drive of synchronous machines (SMs), many techniques have been proposed that can be applied successfully in most applications. Nevertheless, these techniques rely on the measurement of the phase currents to extract the rotor position information. In the particular case of low-power machines, the application of such techniques is challenging due to the limited bandwidth of the available current sensors. An alternative is offered by those techniques that exploit the star-point voltage rather than phase currents. This work aims at providing a model of the dynamic behavior of the star-point voltage and presenting a technique for extracting the rotor electrical position needed for sensorless operation of SMs. Two different circuitries for measuring the star-point voltage are also presented and then compared. The presented mathematical analysis and the measurement methods are validated both numerically and experimentally on a test machine.

show abstract

Saliency based encoderless predictive torque control without signal injection

Cited by 21 publications

References 17 publications

General arbitrary injection approach for synchronous machines

General arbitrary injection approach for synchronous machines

Reducing the parameter dependency of Encoderless Predictive Torque Control for reluctance machines

Analysis and Exploitation of the Star-Point Voltage of Synchronous Machines for Sensorless Operation

Contact Info

Product

Resources

About