Page 42 - Risorse_Energetiche_Favignana_2005

Proposal APERTURES. PART B Priority6.1.3.1.1.2 - FP6-2005-TREN-4 p 36 of 49
B.6.1 Implementation plan introduction

Implementation methodology and stages:

During the first stage, (M1-M12) the identification of the overall renewable resources (solar and wind) available
in Favignana and the creation of a wind and a solar map of the island will be developed. Then the characterization
of the electrical grid of the island of Favignana, measurement of its seasonal load diagram, definition of the
quantity of the ideal overall generation power from renewable sources and its ideal location for the best
exploitation of the sources, taking into consideration the stockage systems (Fuel cells and supercapacitors) will be
made.
This work will lead to:
· The choice of the actual solar and wind generation power units on the basis of the constraints of the local
authorities due to the landscape and environmental impact.
· The identification of microgrids within the network of Favignana and choice of the different points of
common coupling (PCC) between the DG’s and the existing electrical grid.
· The choice of the power supplied locally by DG’s.
· A tool kit to analyse the needs of any islanded energy system.
· The design of the Fuel Cell system and electric energy storage

During the second stage, (M13-M24) the choice and site of the different RES will be made together
with the implementation in the island of Favignana. In the same time the optimisation algorithms for
the optimal energy flux within each RES generation system will be developed, for maximum power
which can be obtained by the contemporary control of all RES units, minimum cost of energy
production with all RES generators, minimum overall power losses with all RES units. In addition
suitable control methods will be developed for coupling of all RES through the MSC in a unique PCC
of each microgrid (plug and play). The global management of the novel “green grid “ will be also
developed for reliable operation of microgrids in maximum power, minimum loss and lowest cost
(monetary and environmental) conditions

This work will lead to:
· Choice of the size and site of wind energy sources, PV arrays, Electrolyser and Fuel cell systems as well as
their implementations in the island of Favignana.
· Choice of the size and site of electricity storage elements to be implanted in the island of Favignana
· Development of all accessory devices for the RES and storage elements
· Development of a low power (<10kW) stand-alone PV and wind grid connected system with a common
DC bus and the multi-input power converter.
· Development of a low power fuel cell system, with its own electrolyser and RES source for H 2 production
· Development of the general MSC and its implementation on the island of Favignana.
· Improvement of power quality (harmonics) from the multi-input power converter by using novel
PWM/Control techniques designed for optimised operation of grid interface of renewable systems.
· Development of the global energy management structure
· Individuation, installation and implementation of all accessory devices (measurement systems, wiring,
protection systems, switchers, and so on)
· Development of a multi-input power converter (MSC) to obtain the regulated output voltage from several
input power sources to interface RES of different nature (e.g. PV, wind generators, Fuel cells) to the grid
complying with power quality/EMC issues.
· Improvement and enhancement of power system parameter measurement techniques, particularly for
weaker grids and in the presence of significant power electronic equipment.
· Development of new on-line power system impedance methodologies to discriminate between fault
scenarios.
· Development of control technique for the optimization of single and multiple RES sources in input of the
multi-input power converter as well as the local demand; implementation of these techniques on the
microcontrollers of the multi-input converter.
· Derivation of rules to determine the requirements for measurement and inter-node communication to create
a supervisory control topology for acceptable network operation (the Active Network).
· Development of new control strategies at a supervisory level to make the grid “strong” and capable of
capable of ‘ride through’ operation during faults and loss of significant generating capability.
· novel techniques for detection and action in the presence of localised faults.