Fault-Tolerant Model Predictive Control of Hybrid Systems

Hammi, Yousra; Zanzouri, Nadia; Ksouri, Mekki

doi:10.5120/6142-8387

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…The error between the voltage vector whose voltage prediction output and reference output should be close to zero, but the future reference value u * c (k + 1) is unknown. So it has to be predicted from the present and previous values, the reference output will be obtained by the second order Lagrange extrapolation formula [18], which is adopted in this paper, and shown in (16):…”

Section: The Prediction Model Of Reference Outputmentioning

confidence: 99%

FCS-MPC Control Strategy for a New Fault Tolerant Three-level Inverter

Mao

et al. 2016

Automatika

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In order to meet the high reliability of aviation inverters, the paper established a new three-level inverter which can increase the reliability in safety-critical applications, what's more, the new topology adding assistant leg to control neutral-point voltage independently. On the basis of the new topology, a mixed logic dynamic (MLD) model was established for the new inverter circuits, and takes finite control set model predictive control (FCS-MPC) for the new inverter. The method takes a discrete-time model of inverter to predict the future value of the all possible voltage vectors generated by the inverter. The vector which minimizes objective function in finite control set is selected as the control of inverter, the objective function used in this work evaluates the voltage error and the switch frequency at the next sampling time. The paper explicitly researched the solving algorithm and realization procedure of the new inverter circuit, its feasibility and validity is verified by the experiment. Key words: Three-level inverter, Fault tolerant, Model predictive control, Mixed logic dynamic model FCS-MPC upravljačka strategija novim trorazinskim izmjenjivačem otpornim na kvarove. Za postizanje visokog stupnja pouzdanosti avijacijskih izmjenjivača, u radu je postavljena nova topologija trorazinskog izmjenjivača za primjene u sigurnosno kritičnim sustavima koja ima dodatnu pomoćnu granu za nezavisno upravljanje naponom neutralne točke. Zasnivajući se na ovoj novoj topologiji, dinamički model s mješovitom logikom (MLD) postavljen je za električne krugove novog ispravljača koji za upravljanje pretvaračem koriste konačni skup upravljačkih signala dobivenih modelskog prediktivnog upravljanja (FCS-MPC). Metoda koristi vremenski diskretni model izmjenjivača za predvianje budućih vrijednosti svih mogućih vektora napona koje generira izmjenjivač. Za upravljanje pretvaračem koristi se upravljački vektor iz konačnog skupa upravljačkih signala dobiven minimiziranjem funkcije cilja koja u obzir uzima grešku napona i frekvenciju sklapanja u sljedećem koraku diskretizacije. U radu je izravno razvijen algoritam za rješavanje problema i procedura za realizaciju nove topologije izmjenjivača, a izvedivost i validnost provjereni su eksperimentalno.Ključne riječi: Trorazinski izmjenjivač, otpornost na kvarove, modelsko prediktivno upravljanje, dinamički model mješovite logike

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Section: The Prediction Model Of Reference Outputmentioning

confidence: 99%

FCS-MPC Control Strategy for a New Fault Tolerant Three-level Inverter

Mao

et al. 2016

Automatika

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“…Another way to model hybrid systems is through Mixed Logical Dynamics Modeling (MLD), where time continuous dynamics, discrete event dynamics and constraints of a complex system are transformed into an integrated model, with logical restrictions and dynamics translated to mixed integer inequalities, involving continuous variables (real) and binary variables (or logical). MLD generalizes a wide set of models, including hybrid linear systems, finite elements state machines, some classes of discrete event systems, constraints linear systems, and non linear systems whose nonlinearities can be expressed (or approximated) through linear by part functions [2].…”

Section: Introductionmentioning

confidence: 99%

Modeling and simulation of firing the boiler igniters of a gas-fired thermoelectric

Silva¹,

Fraga²,

Salles³

et al. 2017

Blucher Physics Proceedings

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This article presents the modeling and simulation of the sequence of operations of the boiler burner igniters in a gas-fired thermoelectric. The firing of the igniter is one of the steps necessary for the firing of the boiler burners. A kind of hybrid systems called Mixed Logical Dynamics Modeling scheme is proposed to model systems that have linear dynamic equations subject to linear inequalities involving real and integer variables. A simulation are reported and shows the steps and constraints to be met for starts the firing of the igniter.

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Fault-Tolerant Model Predictive Control of Hybrid Systems

Cited by 2 publications

References 13 publications

FCS-MPC Control Strategy for a New Fault Tolerant Three-level Inverter

FCS-MPC Control Strategy for a New Fault Tolerant Three-level Inverter

Modeling and simulation of firing the boiler igniters of a gas-fired thermoelectric

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