Sensorless field- oriented control for permanent magnet synchronous machines with an arbitrary injection scheme and direct angle calculation

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

doi:10.1109/sled.2011.6051543

Cited by 61 publications

(25 citation statements)

References 6 publications

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“…According to [7], the resulting inductance matrix for the stator leakage inductance , the rotor leakage inductance and the main inductance transformed into the stator fixed RF are given as:…”

Section: Model Of Induction Machinesmentioning

confidence: 99%

“…with the INFORM method [5] by applying, for instance, three equal test pulses consecutively in each phase of the IM and interpreting the current responses. With more sophisticated pulse patterns described in [6] and [7] errors due to resistive behaviour and induced voltages can be eliminated. In this research a pulse pattern similar to [7] is used which is described in detail in section 4.2.…”

Section: State Of the Art Position Estimation Algorithm Based On Injementioning

confidence: 99%

“…With more sophisticated pulse patterns described in [6] and [7] errors due to resistive behaviour and induced voltages can be eliminated. In this research a pulse pattern similar to [7] is used which is described in detail in section 4.2. The minimum of the transient inductance which can be detected with these methods is usually not pointing in the direction of the d-axis of the rotor flux oriented RF.…”

Section: State Of the Art Position Estimation Algorithm Based On Injementioning

confidence: 99%

“…This can be achieved in a preferable way by a periodical injection of transient test pulses. With the already well known INFORM-Method [5] and its extensions, described in [6] and [7], sufficient modulation of the leakage path due to the main flux path must exist to ensure a proper operation. The described leakage path is highly dependent on the type of motor and therefore only measureable with so called "INFORM-friendly" motors [5].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Speed Sensorless Detection of Rotor Flux Position for Induction Machines at Low Speed and Standstill

Dietrich¹,

Braun²,

Haag³

et al. 2014

7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014)

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This paper presents an advanced pulse pattern for saliencies based self sensing control of induction motors for electric vehicle drives. This allows a direct, accurate and parameter independent detection of the rotor flux position at standstill and low speed. The innovation of the proposed method is the reduction of the stator current to zero before each sequence of test pulses. This leads to a commutation of the magnetising current into the rotor leakage inductance and consequently to a saturation of this inductance in the same direction. Finally measurement results with the proposed injection sequence are shown and compared with state of the art methods.

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Section: Model Of Induction Machinesmentioning

confidence: 99%

Section: State Of the Art Position Estimation Algorithm Based On Injementioning

confidence: 99%

Section: State Of the Art Position Estimation Algorithm Based On Injementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Speed Sensorless Detection of Rotor Flux Position for Induction Machines at Low Speed and Standstill

Dietrich¹,

Braun²,

Haag³

et al. 2014

7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014)

View full text Add to dashboard Cite

show abstract

“…The anisotropy based sensorless approaches in [4], [5] require the presence of an active voltage for estimating the rotor position, which for low and zero speed is assured by means of a slight voltage injection. However, considering the current oscillation in Fig.…”

Section: Zero Vector Evaluationmentioning

confidence: 99%

Silent injection for saliency based sensorless control by means of current oversampling

Landsmann

Paulus

Dötlinger

et al. 2013

2013 IEEE International Conference on Industrial Technology (ICIT)

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Sensorless control approaches for low and zero speed determine the rotor position by injecting high frequency voltage signals. Current measurement noise and quantization necessitate a minimum amount of injection amplitude, which implies an acoustic noise emission that for many applications is unacceptable. This paper proposes to sample the current with the maximum A/D conversion frequency while processing the data with an FPGA. By means of a recursive least squares method and an algorithmic extension, high precision current slopes are calculated from low injection voltage. Experimental results show that the injection magnitude can be reduced by factor 7 to 10 compared to standard PWM centered current measurement.

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Drehgeberlose Regelung von Drehfeldmaschinen

Schröder

Böcker

2021

Elektrische Antriebe – Regelung Von Antriebssystemen

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Sensorless field- oriented control for permanent magnet synchronous machines with an arbitrary injection scheme and direct angle calculation

Cited by 61 publications

References 6 publications

Speed Sensorless Detection of Rotor Flux Position for Induction Machines at Low Speed and Standstill

Speed Sensorless Detection of Rotor Flux Position for Induction Machines at Low Speed and Standstill

Silent injection for saliency based sensorless control by means of current oversampling

Drehgeberlose Regelung von Drehfeldmaschinen

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