Stationary Frame Induction Motor Feed Forward Current Controller With Back EMF Compensation

Stojić, Djordje; Milinković, Milan; Veinović, Slavko; Klasnić, Ilija

doi:10.1109/tec.2015.2438093

Cited by 22 publications

(7 citation statements)

References 31 publications

(85 reference statements)

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“…In the double closed-loop vector control system of IM, the current loop acts as the inner loop of the control system, which plays a key role in the overall system performance [29] [30]. The fast response current loop not only speeds up the current convergence but also guarantees the bandwidth enhancement of the speed loop, which is of great significance for applications such as CNC machine tools and high-speed drilling machines that require high dynamic performance.…”

Section: Current Loop Control Strategymentioning

confidence: 99%

A review of sensorless control methods for AC motor drives

Xu¹,

Wang²,

Zhang

et al. 2018

Trans. Electr. Mach. Syst.

210

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Section: Current Loop Control Strategymentioning

confidence: 99%

A review of sensorless control methods for AC motor drives

Xu¹,

Wang²,

Zhang

et al. 2018

Trans. Electr. Mach. Syst.

210

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“…In order to ensure the medium and high speed sensorless control performance of fault-tolerant permanentmagnet synchronous motor in the case of open and short circuit fault, a robust observer is proposed to estimate the back EMF of two normal phases without considering parameter variations, external disturbances and phase faults [29]. In [30], a control strategy including PI regulator, stator resistance voltage drop and back EMF compensation are proposed to suppress the influence of back EMF on current.…”

Section: Introductionmentioning

confidence: 99%

Decoupling Control Optimization Based on Analysis and Compensation of Back EMF Disturbance in High Precision Current Converter

et al. 2021

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In high performance applications, LC filter usually is added to power converter for optimizing the output current ripple characteristics of the system. However, the LCL link composed of LC filter and resistor-inductance load causes the resonance, which leads to the traditional closed-loop not appropriate to be applied directly. Consequently, the active damping compensation method based on harmonic current is considered to suppress the resonance, and the suppression effects of different damping parameters on the resonant peak are compared and analyzed. Moreover, back EMF treated as a nonlinear disturbance affects the accuracy of current. Therefore, the current harmonic suppression method based on feedforward control for resonant pole-based dual buck soft-switching converter (RPDBSC) is presented, and the current suppression method of feedforward control is analyzed by the decoupling control model of bias current. This paper focuses on the improvement of the closed-loop control strategy for high precision current converters, and the effectiveness of the proposed method is verified by simulation and experiment.INDEX TERMS Active damping compensation, Back EMF, Nonlinear disturbance, Feedforward control, Dual buck soft-switching converter.

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“…If the load and working conditions of the motor vary greatly during a working cycle, the input stator voltage can be adjusted based on the motor's actual load, i.e., stator voltage regulation, which is a practical and effective energy saving method [30]. Energy saving controllers based on motor speed regulation must collect more motor system state variable information [31]. In comparison, stator voltage-regulating energy-saving methods only must adjust the input of the stator voltage based on the actual load, and thus, they only need information about motor's load torque.…”

Section: Introductionmentioning

confidence: 99%

Principle of Optimal Voltage Regulation and Energy-Saving for Induction Motor With Unknown Constant-Torque Working Condition

Zhong

Ma²,

Hao

2020

IEEE Access

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To achieve optimal voltage regulation and energy savings of an AC induction motor operating under constanttorque and variable-working-load conditions, and consider a motor's T-type and Γ-type equivalent circuit, the copper and iron losses of the stator were regarded as invariable losses that were only related to the stator voltage, and the copper losses of the rotor were regarded as variable losses that varied with the load torque. The total electrical loss formula and the optimal voltage regulation formula for the motor were deduced. The formulas revealed that the total electrical loss of the motor was affected by the stator voltage and the rotor load torque, and the optimal voltage regulation changed exponentially with the load torque of the motor. The calculation results of an engineering example showed that when s = 0.01-0.03 and the motor operated stably, the motor load torque error was not more than 1.8 Nꞏm based on the exact and approximate solutions of the slip s. The total electrical loss showed almost no calculation error when the working voltage of the motor was higher than 230 V. The optimal voltage regulation and its error increased with the increase in the motor load torque, but within the working voltage range of the motor, the optimal voltage regulation error did not exceed 6 V. The total electrical loss with the optimal voltage regulation mode and a variable load torque was less than the total electrical loss of a 380-or 220-V constant driving mode. With the increase in the load rate, the total electrical loss increased. When the motor's load did not exceed the medium load and the motor operated with optimal voltage regulation, the energy-saving effect was significant. In particular, when the motor operated without a load, the total electrical loss was almost 0. INDEX TERMS Induction motor, constant-torque working condition, equivalent circuit, total electrical loss, optimal voltage regulation, energy-saving.

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Stationary Frame Induction Motor Feed Forward Current Controller With Back EMF Compensation

Cited by 22 publications

References 31 publications

A review of sensorless control methods for AC motor drives

A review of sensorless control methods for AC motor drives

Decoupling Control Optimization Based on Analysis and Compensation of Back EMF Disturbance in High Precision Current Converter

Principle of Optimal Voltage Regulation and Energy-Saving for Induction Motor With Unknown Constant-Torque Working Condition

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