High performance speed servo system considering voltage saturation of vector controlled induction motor

Ohishi, Kiyoshi; Sato, Yuta; Hayasaka, E.

doi:10.1109/iecon.2002.1187611

Cited by 18 publications

(22 citation statements)

References 13 publications

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“…7, the inputs of the disturbance torque hybrid observer are the q-axis current response i res q , the mechanical angular speed response ω res rm , and the electrical angular response θ res re . The study in (28) and Fig. 7 indicate thatT R is not affected by the low-pass filter.…”

Section: Structure Of Disturbance Torque Hybrid Observermentioning

confidence: 93%

“…In the disturbance torque hybrid observer,T D is defined in (27) usingT L from (26) andT R . (27) can be transformed into (28). Figure 7 shows the structure of the disturbance torque hybrid observer.…”

Section: Structure Of Disturbance Torque Hybrid Observermentioning

confidence: 99%

“…1, a P position controller, a PI speed controller, a q-axis current PI controller with the antiwindup control method (25)- (27) and a d-axis current PI controller are used. The antiwindup algorithm of the q-axis current PI controller operates the calculation of its integrator by using the limited value Δv q of the q-axis voltage (28)- (30) . In DOB, a low-pass filter is used for noise reduction, as described in (9).…”

Section: Conventional Position Servo Systemmentioning

confidence: 99%

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Robust Positioning Control Using α-β Stationary Frame Current Controller and Disturbance Torque Hybrid Observer

et al. 2017

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In the field of high precision positioning control, the position servo system must be highly robust against disturbance torque. A Permanent Magnet Synchronous Motor (PMSM) has various torque ripple components that degrade control performance. A portion of the torque ripple is caused by the harmonic current. The torque ripple can be suppressed using a highly robust current control system. The remaining torque ripple is defined as the disturbance torque and is compensated for using a Disturbance OBserver (DOB). However, it is very difficult for a DOB to perform the appropriate compensation because it uses a low-pass filter to reduce noise. To obtain highly robust performance, this paper proposes a new position servo system using a disturbance torque hybrid observer and a current control system in the α − β stationary frame. In addition, this paper uses the torque ripple equation instead of a torque ripple table so as to reduce the amount of Digital Signal Processor (DSP) memory. The effectiveness of the proposed position servo system is confirmed using numerical and experimental results.

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Section: Structure Of Disturbance Torque Hybrid Observermentioning

confidence: 93%

Section: Structure Of Disturbance Torque Hybrid Observermentioning

confidence: 99%

Section: Conventional Position Servo Systemmentioning

confidence: 99%

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Robust Positioning Control Using α-β Stationary Frame Current Controller and Disturbance Torque Hybrid Observer

et al. 2017

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“…There are mainly two different digital approaches, the one which resets the Integral action of the PI when the Saturation is reached and the second one which holds the integral value when the Saturation is also reached [10]. The analog approaches are considered to be a bit more accurate since its AW method depends not only in the fact that the system is saturating but also considers the amount of this Saturation to proportionally compensate the integral action.…”

Section: Introductionmentioning

confidence: 99%

“…Among them, the PI tracking or back calculation is based on removing from the input, of just the integral part, either the difference between the non saturated output and the saturated one multiplied by a gain factor from 0 to 1 [9] [11] [12] or just the input of the Saturation block [14]. Another approach is the analog compensation of not only the integral action but in both the proportional and integral [10].…”

Section: Introductionmentioning

confidence: 99%

Speed Anti-Windup PI strategies review for Field Oriented Control of Permanent Magnet Synchronous Machines

Espina

Arias

Balcells

et al. 2009

2009 Compatability and Power Electronics

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-The work presented in this paper addresses the unwanted windup phenomenon reviewing and comparing different PI anti-windup strategies employed in speed control of electric drives. The tuning process of PI controllers is usually carried out considering the system as linear and therefore disregarding its physical limits such as maximum current and voltage. To safeguard the system's integrity, the PI output is normally limited eventually causing the windup phenomenon characterized by long periods of overshoots which may even result in instability.

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A novel pole‐changing method with multiple three‐phase inverters

Hidaka

Takagi

Komatsu

et al. 2019

IEEJ Transactions Elec Engng

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This paper presents a new pole‐changing method with multiple three‐phase inverters. Since the number of controllable current phases is much larger than that in conventional methods, a higher winding factor can be obtained in both high‐ and low‐pole driving modes. To evaluate the magnetic characteristics of the proposed method, magnetomotive force analysis is conducted based on Fourier series expansion and finite element method (FEM). Moreover, mutual inductance is compared between high‐ and low‐pole drives using FEM. To validate the effectiveness, an efficiency map is evaluated by using a prototype induction motor. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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High performance speed servo system considering voltage saturation of vector controlled induction motor

Cited by 18 publications

References 13 publications

Robust Positioning Control Using <i>α</i>-<i>β</i> Stationary Frame Current Controller and Disturbance Torque Hybrid Observer

Robust Positioning Control Using <i>α</i>-<i>β</i> Stationary Frame Current Controller and Disturbance Torque Hybrid Observer

Speed Anti-Windup PI strategies review for Field Oriented Control of Permanent Magnet Synchronous Machines

A novel pole‐changing method with multiple three‐phase inverters

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