Predictive current control for induction motor using online optimization algorithm with constrains

Wang, Zhiguo; Zheng, Zedong; Fan, Boran; Li, Guibin

doi:10.1109/ecce.2017.8096804

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…If the effect of the leakage fluxes is neglected, this limitation can be forced in terms of the stator currents in the d 1 and d 3 axes (flux-producing currents of the machine), writing (19) in the following way (see [11] for more details):…”

Section: Electrical Constraints For the Control Strategymentioning

confidence: 99%

“…Then, a first control stage is in charge of obtaining optimal references for the dq currents using an optimisation process based on a continuous-control-set MPC technique [17]. This control stage utilises the machine model, cost functions and analytical methods to obtain the optimal references for the next control stage, where optimisation methods such as quadratic programming are normally used to deal with the imposed constraints [18,19]. In this work, the objective of this optimisation stage is to get the expected torque along with the minimisation of the copper losses, while respecting the defined maximum peak values of currents, voltages and the magnetisation levels.…”

Section: Electrical Constraints For the Control Strategymentioning

confidence: 99%

See 1 more Smart Citation

Predictive controller considering electrical constraints: a case example for five‐phase induction machines

Bermúdez

Martín²,

Barrero³

et al. 2019

IET Electric Power Applications

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The modern control of power drives involves the consideration of electrical constraints in the regulator strategy, including voltage/current limits imposed by the power converter and the electrical machine, or magnetic saturation due to the iron core. This issue has been extensively analysed in conventional three-phase drives but rarely studied in multiphase ones, despite the current interest of the multiphase technology in high-power density, wide speed range or fault-tolerant applications. In this paper, a generalised controller using model-based predictive control techniques is introduced. The proposal is based on two cascaded predictive stages. First, a continuous stage generates the optimal stator current reference complying with the electrical limits of the drive to exploit its maximum performance characteristic. Then, a finite-control-set predictive controller regulates the stator current and generates the switching state in the power converter. A five-phase induction machine with concentrated windings is used as modern high-performance drive case example. This is a common multiphase drive that can be considered as a system with two frequency-domain control subspaces, where fundamental and third harmonic currents are orthogonal components involved in the torque production. Experimental results are provided to analyse the proposed controller, where optimal reference currents are generated and steady/transient states are studied.

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Section: Electrical Constraints For the Control Strategymentioning

confidence: 99%