Experimental Microgrid in Venice. European Utility Week November 4, 2015 Angelo Bovo Veritas SpA

Transcription

1 Experimental Microgrid in Venice European Utility Week November 4, 2015 Angelo Bovo Veritas SpA

2 Summary Project context and environment Scope of this part of project Reasons and advantages of testing different energy storage Microgrid architecture Mode of operation Islanding concept and solutions Macro-Planning and project status Conclusions 2

3 PROJECT CONTEXT AND ENVIRONMENT (1) Agreement between Ministry of Environment Land and Sea and Municipality of Venice for the implementation of projects aimed at energy efficiency measures and the use of renewable energy sources in the Island of Certosa and Porto Marghera Project site in Porto Marghera Island of Certosa 3

4 PROJECT CONTEXT AND ENVIRONMENT (2) PROJECT TARGETS : Area of the experimental microgrid 2015-november-04 European Utility Week Experimental Microgrid in Venice Energy Efficiency increasing Use of renewable energies PLANT KEY ELEMENTS : PV Storage Co-generation Biodiesel production Experimental plants with supercritical water and high pressure CO2 Cultivation of microalgae 4

5 Two topics: PROJECT SCOPE Testing of different energy storage Technologies Testing of a microgrid with a mix of different energy production technologies and sources 5

6 REASONS AND ADVANTAGES OF TESTING DIFFERENTS ENERGY STORAGE SYSTEMS In order to optimize the powers and the energy taken from the public network and the use of energy from renewable sources, you need to have systems that offer: high specific energy and power fast response times. The test objective is to select the most suitable technology for the different applications 2015-november-04 European Utility Week Experimental Microgrid in Venice 6

7 MICROGRID ARCHITECTURE In order to reach the project targets we have selected the following different technologies to be integrated in the microgrid : N 5 chemical energy storage systems based on different technologies: Lithium Ion: 300 kw kwh with functions of MASTER GENERATOR Lead Acid: 40 kw kwh Sodium Salts : 60 kw kwh Fuel cell H2: 20 kw - 75 kwh Vanadium Redox: 20 kw - 80 kwh 1 generator biodiesel power 100 KW 1 photovoltaic power plant 40 kwp 1 system of loads - 70 KW (maximum up to 300 kva) An Islanding controller that controls the functionality of the paralleling, disconnection and reconnection to the grid distributor. An EMS (Energy Management System) that manages the capabilities of the grid, testing of storage systems, dispatching loads and regulating the power production. 7

8 Lithium Ion Lead Acid Salt Sodium Redox Vanadium Hydrogen Generator biofuel powered Photovoltaic MICROGRID BLOCK DIAGRAM GRID MICROGRID LOADS ISLANDING CONTROLLER Communication bus EMS Master generator Slaves generators 8

9 MODE OF OPERATION The microgrid is designed to implement the following functionalities: Parallel operation : to the power distributor respecting the CEI 0-16 Scheduled Islanding : programmed voluntary separation from the grid of the distributor without perturbations >> total cancellation of power exchange Unforeseen Islanding : not programmed involuntary detachment from the grid of the distributor >> backup of the distributor grid Black start : recovering of the microgrid power supply without synchronization and without inrush current 9

10 DESIGN ASSUMPTIONS 1. Only one master generator 2. All others storage systems and generators are «SLAVE» 3. The loads will be managed from EMS 4. In parallel operation the system will fulfill the CEI 0-16 including the Low-Voltage-Fault-Ride-Through. 5. In the event of master generator failure, biodiesel gen-set will become master. 10

11 ISLANDING CONTROL ARCHITECTURE HIGH AVAILABILITY MASTER GENERATOR ISLANDING CONTROLLER 11

12 HIGH AVAILABILITY MASTER GENERATOR 6 fully independent 66KW converters Modular architecture (33kw power brick) High efficiency (3 level topology) Hot swappable 6 fully independent Li-ion battery strings Modular architecture (3,6 KWh modules) Field proved Safe technology (LMO) 12

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14 ISLANDING CONTROLLER In combination with an innovative control mode resident on the master generator the islanding controller performs : 1. NO BREAK transition «to & from» islanding 2. Black start 3. Master generator Management 4. Microgrid safety parameters management (frequency, voltage, production / consumption equilibrium ) 14

15 NO BREAK ISLANDING TRANSITION 15

16 MACRO-PLANNING AND PROJECT STATUS Preliminary paralleling test between master generator and gen-set (done in Socomec on July 15) Construction of slave generators (in progress) Authorization for building constructions (in progress) Installation (Q2-2016) Commissioning (Q3-2016) Testing (from Q to end 2017) 16

17 CONCLUSIONS This is a real example of Microgrid where different green sources are combined and optimized using innovative storage technologies and islanding capability in order to maximize the integration of the green island with the existing traditional grid 17

18 Thanks for your attention Angelo Bovo Veritas SpA 18