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Constrained Control of Power Converters Veaceslav Spinu

Constrained Control of Power Converters Veaceslav Spinu Supervisor: prof.dr.ir. P.P.J. van den Bosch Co-supervisor: dr. M. Lazar Eindhoven University of Technology 29 January 2014. You own dozens of power converters. Industrial applications. Reliability, Efficiency, Precision and Speed.

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Constrained Control of Power Converters Veaceslav Spinu

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  1. Constrained Control of Power Converters Veaceslav Spinu Supervisor: prof.dr.ir. P.P.J. van den Bosch Co-supervisor: dr. M. Lazar Eindhoven University of Technology 29 January 2014

  2. You own dozens of power converters

  3. Industrial applications Reliability, Efficiency, Precision and Speed

  4. Construction of a power converter and the role of control

  5. Construction of a power converter and the role of control >100,000 times/second Act Control _ Measure + Action Reference

  6. What are the constraints and why they matter • Safety constraints • Actuation constraints • Control structure constraints • Limited computation resources Destination X X Car X

  7. Main research directions • Fixed structure control • Variable structure control

  8. Fixed structure control • Set theoretic methods • design a simple feedback controller that satisfies constraints • Reference governors • adapt the reference such that the operation is safe

  9. Variable structure control • Model Predictive Control • optimal response • complex implementation • Hybrid Polytopic Partition framework • hardware tailored • large domain of operation

  10. Main research results • Constrained control can make converters: smaller, faster and more reliable. • Limitations of previous solutions: • Disjoint synthesis of the control gain and the contractive set in set-theoretic methods • Exponential complexity increase of the explicit MPC • Small signal distortions with the implicit MPC • Proposed solutions • Iterative expansion of the contractive set and control gain computation • HPP framework for hardware tailored control synthesis • Dual Mode MPC for high-precision applications

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