Zero frequency rotor position detection for synchronous PM motors

Consoli, A.; Scarcella, G.; Tutino, G.; Testa, A.

doi:10.1109/pesc.2000.879930

Cited by 15 publications

(15 citation statements)

References 5 publications

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“…The modulated zero sequence flux links the stator windings inducing a third harmonic voltage reflecting the flux modulation. Therefore, the zero sequence flux and consequently the zero sequence voltage contain the same high frequency components which correspond to the relative position of two rotating fields, which can be used to evaluate the air gap flux position [7]. The frequency spectrum of the resulting zero sequence voltage for the usual case of no hf injection and with the introduction of injection is shown in Figs 3(a) and 3(b) respectively.…”

Section: Zero Sequence Voltage Methodsmentioning

confidence: 99%

“…In [4], [5], [7] there is shown an estimation method which is based on the zero crossing and local extremes of ZSV detection. This simple demodulation technique brings also some disadvantages which are highlighted thereinafter.…”

Section: Rotor Position Estimationmentioning

confidence: 99%

“…Such information can be extracted through the measurement of the zero sequence voltage (ZSV) [4], [7]. The zero sequence sensorless technique can be performed both for asynchronous or synchronous electrical machines as widely described in [7]. A novel ZSV signal demodulation approach is presented in this paper and applied to the surface mounted permanent magnet synchronous machine.…”

Section: Introductionmentioning

confidence: 99%

“…

This paper deals with the implementation of the Zero Sequence Voltage (ZSV) technique [4,7], which was exploited to determine the rotor position of the surface permanent magnet synchronous motor (SMPMSM). The method is based on the zero sequence voltage measurement, performed between the neutral point of AC machines and the mid-point of the inverter DC bus.

…”

mentioning

confidence: 99%

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Signal processing of zero sequence voltage technique

Štulrajter

Vittek

Scelba

2007

2007 European Conference on Power Electronics and Applications

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Section: Zero Sequence Voltage Methodsmentioning

confidence: 99%

Section: Rotor Position Estimationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…

…”

mentioning

confidence: 99%

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Signal processing of zero sequence voltage technique

Štulrajter

Vittek

Scelba

2007

2007 European Conference on Power Electronics and Applications

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“…These methods generally work well, but fail at very low and zero speeds. Although these machines are nonsalient, high-frequency injection methods can still be used [3]: However, these methods require usage of a consistent portion of the dc-bus voltage and are quite sensitive to different load conditions. To guarantee a full range of operation for a nonsalient machine-including rejecting disturbances at zero speed-position sensors are still required.…”

Section: Introductionmentioning

confidence: 99%

AC brushless drive with low-resolution Hall-effect sensors for surface-mounted PM Machines

Capponi

Donato

Ferraro

et al. 2006

IEEE Trans. on Ind. Applicat.

105

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Abstract-An ac brushless drive in which Hall-effect sensors are used as rotor position sensors is presented in this paper. Three different methods to obtain a high-resolution position estimation from the low-resolution sensors are described and compared through simulation and experimental testing. The proposed control algorithm's most innovative feature is its adaptability to the entire speed range, including startup, when using any of the three estimation algorithms. The control algorithm has been implemented and tested in order to drive a slotless axialflux permanent-magnet (PM) machine for domestic appliance applications.

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A new initial‐rotor‐position estimation method for SPM synchronous motors using spatially rotating high‐frequency voltage: A dynamic simulator approach taking flux saturation phenomena into account

Shinnaka

Kumakura

2007

Electrical Engineering Japan

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First of all, this paper proposes a new dynamic mathematical model of surface-mounted permanent magnet synchronous motors (SPMSMs) with flux saturation phenomena, in stationary reference frame. Secondly, based on the dynamic model, this paper establishes new dynamic simulators taking flux saturation phenomena into account, which act as very powerful tools for developing initial-rotor-position estimation methods for SPMSMs. Thirdly, this paper proposes a new initial-rotor-position estimation method for SPMSMs. The proposed method is so simple that it inputs a spatially rotating high-frequency voltage to SPMSMs, measures current output and can estimate directly rotor position of N-pole through norm evaluation of the current. The method exploits flux saturation phenomena inherent to SPMSMs and is insensitive to all motor parameters. According to experiments, the maximum estimation error is about ±0.035(rad) (±2(degree)) in mechanical sense, which is comparable to sensor mounting error and is sufficient small for initial drive of SPMSMs.

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Zero frequency rotor position detection for synchronous PM motors

Cited by 15 publications

References 5 publications

Signal processing of zero sequence voltage technique

Signal processing of zero sequence voltage technique

AC brushless drive with low-resolution Hall-effect sensors for surface-mounted PM Machines

A new initial‐rotor‐position estimation method for SPM synchronous motors using spatially rotating high‐frequency voltage: A dynamic simulator approach taking flux saturation phenomena into account

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