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Real time PI-backstepping induction machine drive with efficiency optimization
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DOI：10.1016/j.isatra.2017.07.003.png)
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This paper describes a robust and efficient speed control of a three phase induction machine (IM) subjected to load disturbances. First, a Multiple-Input Multiple-Output (MIMO) PI-Backstepping controller is proposed for a robust and highly accurate tracking of the mechanical speed and rotor flux. Asymptotic stability of the control scheme is proven by LYAPUNOV Stability Theory. Second, an active online optimization algorithm is used to optimize the efficiency of the drive system. The efficiency improvement approach consists of adjusting the rotor flux with respect to the load torque in order to minimize total losses in the IM. A dSPACE DS1104 R&D board is used to implement the proposed solution. The experimental results released on 3 kW squirrel cage IM, show that the reference speed as well as the rotor flux are rapidly achieved with a fast transient response and without overshoot. A good load disturbances rejection response and IM parameters variation are fairly handled. The improvement of drive system efficiency reaches up to 180% at light load. (C) 2017 ISA. Published by Elsevier Ltd. All rights reserved.
Keyword:
Field Oriented Control
Efficiency
Induction machine
MIMO PI-backstepping
Optimization
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6.5
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6.0K
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2.0W
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分享收藏DSP-based adaptive backstepping using the tracking errors for high-performance sensorless speed control of induction motor drive.png)
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