PhD report
Topic : Electrical engineering

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Soutenance prevue: 24 Janvier 2014

ECOLE CENTRALE DE LILLE, France
UNIVERSTE TECHNIQUE DE SOFIA, Bulgarie

Hristiyan KANCHEV

Gestion des flux energetiques dans un systeme hybride de sources d energie renouvelable:
Optimisation de la planification operationnelle et ajustement d un micro reseau electrique urbain

Energy management of a hybrid power system including renewable energy based generators:
Optimization of the operational planning and the daily adjustment for an urban micro grid



Examinateur :
Ivan YATCHEV, Professeur, Universite Technique de Sofia

Rapporteurs :
Bruno SARENI, Professeur, INPT-ENSEEIHT, Laboratoire LAPLACE
Nikola MIHAILOV, Professeur, “Angel Kunchev” Universitede Rousse

Examinateurs :
Seddik BACHA, Professeur, Universite Joseph Fourier, G2ELAB

Directeurs de these :
Bruno FRANCOIS, Professeur, Ecole Centrale de Lille, L2EP
Vladimir LAZAROV, Professeur, Universite Technique de Sofia



Supervisory Control and Data Acquisition (SCADA) of the lab

Abstract:
The presented research works aim to develop an energy management system for a cluster of distributed micro gas turbines and controllable PV generators called «active generators». The general principles of electricity generation from renewable and non-renewable energy sources are first presented. The operation of actual electric grids is also recalled in order to highlight the challenges and expected innovations in future Smart Grids. Then, the integration of a novel method for maximum and limited power point tracking in a PV-based active generator is presented. The modeling of micro-gas turbines in a microgrid energy management system is also presented. The main contribution of this thesis concerns the design of an operational planning of generators one day ahead by the means of a dynamic programming-based algorithm, taking into account the PV power production and the consumption forecasts. The proposed method calculates the production planning of generators by performing a global optimization of an economic and environmental function. An adjustment algorithm is proposed and executed every ½ hours through a communication network in order to take into account the uncertainty in forecasted values. An urban microgrid is used for testing the developed algorithms through Supervisory Control and Data Acquisition (SCADA) with hardware-in-the-loop and real-time simulations. Comparisons of the microgrid operation in identical situations with different objective functions are performed, as well as evaluations of economic and environmental indicators.

Keywords:
Power system, Operational planing, Optimization, Renewable energy, Carbon dioxyde emission, microgrid, Photovoltaic, Gas microturbine

Resume:
L objectif est de developper un algorithme de gestion energetique d un parc de production comprenant de la production distribuee sous forme de micro turbines a gaz et de generateurs PV pilotables dits «actifs » en vue de minimiser le cout economique et environnemental. Les principes generaux de la production d electricite a base d energie renouvelable et non renouvelable sont d abord presentes et le fonctionnement actuel des reseaux electriques est rappele pour situer les innovations attendues dans les futurs reseaux dits intelligents. Ensuite, un algorithme de suivi du point de puissance maximale et de puissance limitee dans un generateur actif PV est presente. La modelisation des micro-turbines a gaz est aussi presentee. La contribution principale concerne la conception d une planification operationnelle des moyens de production la veille pour le lendemain a partir de predictions de la charge et de la production PV en utilisant une programmation dynamique adaptee. La methode proposee predetermine le profil de production des generateurs de maniere a realiser une optimisation globale d une fonction objective pour un reseau electrique urbain. Pour l exploitation, un algorithme d ajustement est propose et intervient toutes les ½ heures de maniere a prendre en compte les deviations par rapport aux predictions en utilisant un reseau de communication. Un micro reseau urbain est utilise pour tester les algorithmes de gestion implantes dans un superviseur interface a un simulateur temps reel. Des comparaisons dans des situations identiques avec differentes fonctions objectives sont realisees ainsi que des evaluations economiques et environnementales a l aide d indicateurs.

Mots-cles:
Reseau electrique, Planification operationelle (J-1), Optimisation, Energie renouvelable, emission de CO2, microreseau, generateur photovoltaique, microturbine a gaz



Gaz microturbine and PV generator of the lab

Contenu :

Introduction generale
Chapitre 1 Etat de l art sur les energies renouvelables dans les reseaux electriques
Chapitre 2 La gestion des micro-reseaux et les nouvelles technologies a exploiter
Chapitre 3 Optimisation de la planification operationnelle d un micro-reseau
Chapitre 4 Application a un micro reseau urbain et experimentations
Conclusion generale

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Scheme of the optimized day_ahead operational planning


Publications:

International Journal
[J1] Di LU, Hristyian KANCHEV, Vladimir LAZAROV, Bruno FRANCOIS, Energy management and power planning of a microgrid with a PV-based active generator for Smart Grid Applications , IEEE Transaction on Industrial Electronics, Volume: 58, Issue: 10, pp 4583-4592, Oct. 2011.

[J1] Hristyian KANCHEV, Frederic COLAS, Vladimir LAZAROV, Bruno FRANCOIS, Emission reduction and economical optimization of an urban microgrid operation including dispatched PV-based active generators , IEEE Transaction on SUSTAINABLE ENERGY, Volume: 5, No 4, pp 1397-1405, Oct. 2014.


International conferences

[C1] Environmental and economical optimization of microgrid long term operational planning including PV-based active generators , H. Kanchev, V. Lazarov, B. François, EPE-PEMC ECCE 2012, Novi Sad, Serbie, 4–6 Septembre, 2012

[C2] Operational planning and optimization for fuel consumption minimization of a microgrid comprising PV-based active generators , IFAC Power Plant and Power System Control Symposium 2012 (PPPSC 2012), Toulouse, France, 2-5 Septembre, 2012

[C3] Planifications operationnelles pour la minimisation des emissions polluantes et le co t du fonctionnement d un micro-reseau , H. Kanchev, Colloque francophone sur l energie, environnement, economie et thermodynamique (COFRET 2012), Sozopol, Bulgarie, 11-13 Juin 2012

[C4] Algorithm for operational planning and emissions reduction of a microgrid comrising gas turbines and PV-basedactive generators , H. Kanchev, D. Lu, B. François, V. Lazarov, Innovative Smart Grid Technologies Conference Europe (ISGT Europe), Manchester, UK, 5 - 7 Decembre, 2011

[C5] Unit commitment by dynamic programming for microgrid operational planning optimization and emission reduction , H. Kanchev, B. François, V. Lazarov, ACEMP & Electromotion joint conference, Istanbul, Turquie, 8-10 Septembre, 2011

[C6] Smart monitoring of a microgrid including gas turbines and a dispatched PV-based active generator for energy management and emissions reduction , H. Kanchev, D. Lu, B. François, V. Lazarov, Innovative Smart Grid Technologies Conference Europe (ISGT Europe), IEEE PES, Gothenburg, Suede, 11-13 Octobre, 2010



Studied urban microgrid