Control Mode Switching of Induction Machine Drives between Vector Control and V/f Control in Overmodulation Range

Nguyễn, Thanh Hải; Van, Tan Luong; Lee, Dong-Choon; Park, Joo-Hong; Hwang, Joon-Hyeon

doi:10.6113/jpe.2011.11.6.846

Cited by 14 publications

(6 citation statements)

References 17 publications

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“…For easy implementation in practical applications, the DC-link current is reconstructed from the phase currents and the gating times of the VSI instead of the switching functions. For ESR calculation, the mean value of the capacitor current, 2 …”

Section: B Reconstruction Of Capacitor Currentmentioning

confidence: 99%

Estimation of ESR in the DC-Link Capacitors of AC Motor Drive Systems with a Front-End Diode Rectifier

Nguyễn¹,

Le²,

Lee³

2015

Journal of Power Electronics

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In this paper, a new method for the online estimation of equivalent series resistances (ESR) of the DC-link capacitors in induction machine (IM) drive systems with a front-end diode rectifier is proposed, where the ESR estimation is conducted during the regenerative operating mode of the induction machine. In the first place, a regulated AC current component is injected into the q-axis current component of the induction machine, which induces the current and voltage ripple components in the DC-link. By processing these AC signals through digital filters, the ESR can be estimated by a recursive least squares (RLS) algorithm. To acquire the AC voltage across the ESR, the DC-link voltage needs to be measured at a double sampling frequency. In addition, the ESR current is simply reconstructed from the stator currents and switching states of the inverter. Experimental results have shown that the estimation error of the ESR is about 1.2%, which is quite acceptable for condition monitoring of the capacitor.

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Section: B Reconstruction Of Capacitor Currentmentioning

confidence: 99%

Estimation of ESR in the DC-Link Capacitors of AC Motor Drive Systems with a Front-End Diode Rectifier

Nguyễn¹,

Le²,

Lee³

2015

Journal of Power Electronics

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“…he modified voltage vector references for the two modes above have been described in detail in [1], [10].…”

Section: B Dynamic Ovm Strategiesmentioning

confidence: 99%

“…However, flux distortion and high torque pulsation of the machine appear. A method for control mode switching between vector control and constant V/f control in the OVM range has been introduced in [10]. However, during operation in the OVM range, the control scheme operates only in V/f mode.…”

Section: Introductionmentioning

confidence: 99%

Extension of the Operating Speed for Vector-Controlled Induction Machine Drives in the Overmodulation Range

Nguyễn¹,

Lee²

2012

Journal of Power Electronics

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This paper proposes a novel current control scheme for vector-controlled induction machine (IM) drives in the overmodulation (OVM) range, with which the voltage utilization of the voltage-source inverter (VSI) can be maximized. In the OVM region, the original voltage reference is modified by changing its magnitude and angle, which causes the motor current to be distorted, resulting in a deterioration of the current control performance. To meet with this situation, the harmonic components in the feedback currents should be eliminated before being input to the PI current controllers. For this, a composite observer is applied to extract the fundamental and harmonic components from the distorted currents, which gives a good performance without a delay and the effect of a fundamental frequency variation. In addition, through a detailed analysis of the response of the PI current controllers in the OVM range, the effectiveness of using the composite observer is demonstrated. Simulation and experimental results for a 3-kW induction motor drive are shown to verify the validity of the proposed method.

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“…In last few years very less growth and development in scalar control method has been noticed. Although, the V/f control scheme is generally adopted for general and constant speed operation of drive which gives cost effective solution with less complexity (Nguyen et al, 2011). Industrial applications require product testing before arriving in market.…”

Section: Introductionmentioning

confidence: 99%

An experimental investigation of scalar control-based induction motor drive using digital signal processor

Gupta

Nama

2019

IJPELEC

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This paper presents hardware implementation of anti-windup proportional integral (AWPI) controller-based scalar control of three phase induction motor (IM) drive using digital signal processer (DSP). The space vector pulse width modulation (SVPWM) is used generally for motor control application. The proposed control scheme is built on DSP which reduces speed error by using AWPI controller. The response of AWPI controller is used to modify amplitude and speed reference of rotating vector in stationary plane. The controller performance is assessed by MATLAB/Simulink simulation results and validated by experimental results using TMS320F28335 DelfinoTM kit. A comparative assessment is also presented between conventional PI controller and proposed controller. The proposed AWPI controller gives the better performance in terms of peak overshoot and settling time during transient conditions.

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Control Mode Switching of Induction Machine Drives between Vector Control and V/f Control in Overmodulation Range

Cited by 14 publications

References 17 publications

Estimation of ESR in the DC-Link Capacitors of AC Motor Drive Systems with a Front-End Diode Rectifier

Estimation of ESR in the DC-Link Capacitors of AC Motor Drive Systems with a Front-End Diode Rectifier

Extension of the Operating Speed for Vector-Controlled Induction Machine Drives in the Overmodulation Range

An experimental investigation of scalar control-based induction motor drive using digital signal processor

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