Plasma current and shape control for ITER using fast online MPC
Autor: | Boštjan Pregelj, Samo Gerkšič, Marco Ariola, Matic Knap, Gianmaria De Tommasi, Matija Perne, Alfredo Pironti |
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Přispěvatelé: | Gerkšič, S., Pregelj, B., Knap, M., Ariola, M., DE TOMMASI, Gianmaria, Pironti, Alfredo |
Jazyk: | angličtina |
Rok vydání: | 2016 |
Předmět: |
Engineering
Optimization problem business.industry Computation Emphasis (telecommunications) Control engineering Solver 01 natural sciences Prime (order theory) 010305 fluids & plasmas Shape control Plasma current Computational science 0103 physical sciences Quadratic programming 010306 general physics business |
Popis: | In this work we explore the practical feasibility of using MPC for PCSC in the ITER tokamak, employing complexity reduction techniques and recently developed fast on-line quadratic programming (QP) optimization methods. A survey of the available QP methods suitable for the on-line solution of MPC optimization problems is given, with emphasis on first-order methods, which have been recently considered as prime candidates for fast online MPC control. Using a modification of the QP solver QPgen, a five-fold speed-up compared to the state-of-the-art commercial solver CPLEX was achieved, with peak computation times below 10 ms using a four-core Intel processor. |
Databáze: | OpenAIRE |
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