Book Name: High Power Converters and Industrial Drives by Tobias Geyer
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Language English
Pages 572
Format PDF
Measurement 18.3 MB


Mannequin Predictive Management of High Power Converters and Industrial Drives by Tobias Geyer


This e-book focuses on mannequin predictive management (MPC) schemes for industrial energy electronics. The emphasis is on three-phase ac–dc and dc–ac energy conversion techniques for high-power functions of 1 MVA and above. These techniques are predominantly primarily based on multilevel voltage supply converters that function at switching frequencies effectively beneath 1 kHz. The e-book largely considers medium-voltage (MV), variable-speed drive techniques and, to a lesser extent, MV grid-connected converters.

The proposed management strategies may also be utilized to low-voltage energy converters when operated at low pulse quantity, that’s, at small ratios between the switching frequency and the elemental frequency. For prime-power converters, the heartbeat quantity sometimes ranges between 5 and 15. Consequently, the idea of averaging, which is often utilized to energy digital techniques to hide the switching facet from the management drawback, results in efficiency deterioration.

Generally, to realize the best potential efficiency for a high-power converter, averaging is to be averted, and the historically used present management loop and modulator needs to be changed by one single management entity. This e-book proposes and evaluations management strategies that absolutely exploit the efficiency potential of high-power converters, by making certain quick management at very low switching frequencies and low harmonic distortions. To realize this, the management and modulation drawback is addressed in a single computational stage. Lengthy prediction horizons are required for the MPC controllers to realize glorious steady-state efficiency.


The ensuing optimization drawback is computationally difficult, however will be solved in actual time by branch-and-bound strategies. Alternatively, the optimum switching sequence to be utilized throughout steady-state operation—the so-called optimized pulse sample (OPP)—will be precomputed offline and refined on-line to realize quick closed-loop management. To this finish, the analysis imaginative and prescient is to mix the advantages of deadbeat management strategies (resembling direct torque management) with the optimum steady-state efficiency of OPPs, by resolving the antagonism between the 2. Three such MPC strategies are introduced intimately.

First and foremost, I wish to thank Georgios Papafotiou, who launched me to the thrilling area of energy electronics, Stefan Schröder, who taught me the basics of excessive energy electronics, and Manfred Morari, who confirmed me how one can obtain significant analysis outcomes. I’m deeply grateful to my spouse Jan for her love and assist, which allowed me to work throughout lengthy nights, weekends, and holidays to finalize this e-book. I apologize to my kids Luci and David for having spared little time for them. I thank my dad and mom for being function fashions of diligence and scientific curiosity. Over time, I had the privilege of collaborating with many excellent management and energy electronics researchers. I wish to notably point out Daniel Quevedo, Toit Mouton, Stefan Schröder, Georgios Papafotiou, and Petros Karamanakos.


I might additionally wish to thank Johann Kolar, José Rodríguez, and Ralph Kennel for his or her assist and encouragement. I’m very grateful to Andrew Paice, Jan-Henning Fabian, John Boys, Grant Covic, Udaya Madawala, and Keith Jones for facilitating and supporting my affiliation with the College of Auckland. Nearly all of the ideas and outcomes on this e-book are as a result of this very productive 3.5 years, throughout which I had few obligations and the distinctive alternative to solely deal with analysis.

At ABB, I’ve had the pleasure of working with many in a position colleagues on control-related subjects which can be a part of this e-book. I’m notably grateful to Nikolaos Oikonomou, Wim van der Merwe, Peter Al Hokayem, Vedrana Spudic, Christian Stulz, Eduardo Rohr, Andrea Rüetschi, ´Thomas Burtscher, Christof Gutscher, Andrey Kalygin, Rick Kieferndorf, Silvia Mastellone, Helfried Peyrl, Jan Poland, Tobias Thurnherr, and Michail Vasiladiotis. A particular phrase of gratitude is reserved for Gerald Scheuer for his steadfast assist of and conviction in fashionable management methodologies. Many MSc and PhD college students contributed via their thesis work to this e-book. Amongst them, I wish to particularly thank James Scoltock, Baljit Riar, Thomas Burtscher, Aleksandar Paunovic, Georgios Darivianakis, Yashar Zeinaly, and Joël Vallone. It was a pleasure ´ to work with them, and I’m grateful for his or her exhausting work, curiosity, and concepts.

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