Microprocessor-based primary current control for a cage induction motor drive

Zhang, J.

doi:10.1109/63.21874

Cited by 15 publications

(4 citation statements)

References 16 publications

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“…In comparison, the bandwidth of the positioning control loop is often below 10 Hz. The bandwidth difference makes it possible to simplify the transfer function of the power amplifier that has inner current control loop(s) [7,10]. Therefore in Figure 2, the torque producing current loop is assumed as an ideal amplifier having a unity gain for its transfer function without affecting the genuine of the control synthesis when performing an analysis or design of the outer control loops.…”

Section: Synthesis Stage 4: Complete a New Adaptive Control Scheme Anmentioning

confidence: 99%

Backstepping Approach of Adaptive Control, Gain Selection and DSP Implementation for AC Servo System

Chang

Tan

2007

2007 IEEE Power Electronics Specialists Conference

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Nonlinear adaptive backstepping control of AC servo system is developed. A systematic approach is presented to derive the new nonlinear control scheme. A digital control system is designed and implemented based on a low-cost DSP controller, TMS320 C32. The selection guideline for the control gains is presented. The control system can achieve satisf actory perf ormance in position tracking and load estimation.

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Section: Synthesis Stage 4: Complete a New Adaptive Control Scheme Anmentioning

confidence: 99%

Backstepping Approach of Adaptive Control, Gain Selection and DSP Implementation for AC Servo System

Chang

Tan

2007

2007 IEEE Power Electronics Specialists Conference

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“…Here, the microcomputer not only executes the stator voltage control algoritlun, but also generates the gating signals of the twelve thyristors of the converter and the inverter. A 16-bit microprocessor has recently been used for control of a CSI-IM drive with improved estimation of slip angular frequency and estimation of the rotor flux position by feedback of actual primary currents through a variable structure controller [100].…”

Section: Microprocessor-based Controlmentioning

confidence: 99%

Current Source Inverter-Fed Induction Motor Drives—A State-of-the-Art Research Review

Chattopadhyay¹

1991

IETE Journal of Research

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“…(lo)- ( 13). When a sudden load applies onto the motor shaft, it slows down the rotor mechanical speed and increases the slip frequency of the induction machine.…”

Section: _-mentioning

confidence: 99%

Speed sensorless AC drive fed by a 3-level inverter with improved low-speed torque and speed control

Zhang

Proceedings of the 1996 IEEE IECON. 22nd International Conference on Industrial Electronics, Control, and Instrumentation

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In a speed-sensorless induction machine drive, the accuracy of motor flux and speed estimation deteriorates at low speed which is commonly imputed to stator resistance variation. Further analysis shows that the estimated value of field orientation angle is corrupted by accumulative errors from integration of the motor variables with low sigdnoise ratio at low frequency region. This in turn introduces errors in variable transformation between reference frames and in motor torque generation, which further degrades control. An error loop-effect speeds up the degradation process. A novel control scheme is developed to improve the control of motor current , torque and speed at low frequency. The scheme is less sensitive to the combined effect of the error sources and the loop effect in the frequency range of interest. The control scheme is implemented in a DSP based fully digital control system of a 3-level IGBT PWM inverter drive. Preliminary experimental tests demonstrate promising results which are achievable even below 0.5 Hz.

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Microprocessor-based primary current control for a cage induction motor drive

Cited by 15 publications

References 16 publications

Backstepping Approach of Adaptive Control, Gain Selection and DSP Implementation for AC Servo System

Backstepping Approach of Adaptive Control, Gain Selection and DSP Implementation for AC Servo System

Current Source Inverter-Fed Induction Motor Drives—A State-of-the-Art Research Review

Speed sensorless AC drive fed by a 3-level inverter with improved low-speed torque and speed control

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