Computationally efficient long-horizon direct model predictive control for transient operation

Petros Karamanakos; Tobias Geyer; Ricardo Aguilera

doi:10.1109/ECCE.2017.8096793

Computationally efficient long-horizon direct model predictive control for transient operation

Petros Karamanakos, Tobias Geyer, Ricardo Aguilera

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

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Abstract

In this paper we present modifications in the sphere decoder initially introduced in [1] and modified in [2] that allow for its implementation in transient operation. By investigating the geometry of the integer problem underlying direct model predictive control (MPC), a new sphere that guarantees feasibility and includes a significant smaller number of candidate solutions is computed. In a first analysis, the computational complexity can be reduced by up to 99.7% when a variable speed drive system consisting of a three-level neutral point clamped (NPC) voltage source inverter and a medium-voltage induction machine is examined. As also shown, optimality is sacrificed only to a limited extent, thus maintaining the very fast transient response inherent to direct MPC.

Original language	English
Title of host publication	2017 IEEE Energy Conversion Congress and Exposition (ECCE)
Publisher	IEEE
Pages	4642 - 4649
Number of pages	8
ISBN (Electronic)	978-1-5090-2998-3
DOIs	https://doi.org/10.1109/ECCE.2017.8096793
Publication status	Published - Oct 2017
Publication type	A4 Article in conference proceedings
Event	IEEE Energy Conversion Congress and Exposition - Duration: 1 Jan 1900 → …

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Conference	IEEE Energy Conversion Congress and Exposition
Period	1/01/00 → …

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10.1109/ECCE.2017.8096793

Computationally Efficient Long-Horizon Direct Model 2017
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http://urn.fi/URN:NBN:fi:tuni-202002262371

Cite this

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AB - In this paper we present modifications in the sphere decoder initially introduced in [1] and modified in [2] that allow for its implementation in transient operation. By investigating the geometry of the integer problem underlying direct model predictive control (MPC), a new sphere that guarantees feasibility and includes a significant smaller number of candidate solutions is computed. In a first analysis, the computational complexity can be reduced by up to 99.7% when a variable speed drive system consisting of a three-level neutral point clamped (NPC) voltage source inverter and a medium-voltage induction machine is examined. As also shown, optimality is sacrificed only to a limited extent, thus maintaining the very fast transient response inherent to direct MPC.

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Y2 - 1 January 1900

ER -

Computationally efficient long-horizon direct model predictive control for transient operation

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