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Grid-PV-Diesel Hybrid System ManagementApplication to MED-Solar Project Scenarios
Guillermo VelascoJune 12th , 2015
Rome
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Grid-PV-Diesel Hybrid System ManagementApplication to MED-Solar Project Scenarios
OUTLINE
1. Introduction. The MED-Solar Project2. MED-Solar Project main objective3. Electric energy production in target countries4. Proposed hybrid systems5. Proposed Energy Management System (EMS)6. Future steps
1. Introduction. MED‐Solar Project
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• Linked to the multilateral Cross‐Border Cooperation in the Mediterranean Sea Basin Program (CBCMED)
• Funded by the European Neighborhood and Partnership Instrument (ENPI)
• The Autonomous Region of Sardinia is the Joint Managing Authority (responsible of operational and financial management)
• Project inscribed in the second priority of the Program:
Promotion of environmental sustainability through the promotionof the use of renewable energy sources
http://www.medsolarproject.com
1. Introduction. MED‐Solar Project
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The MED‐Solar partnership:
2. MED‐Solar Project main objective
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Main similarityElectricity production based on diesel
generators
• High dependence on foreign countries
• High cost of operation• Air and noise pollution
MED‐Solar project actuationReduce the use of fuel by using:
• PV power plants• Energy transient storage systems
• Increment on power supply security• Reduction on operation cost• Promotion of SMEs development• Increment on air quality
Lebanon
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3. Electric energy production in target countries
Diesel91.2%
RES: 6.6% Imp.: 2.2%
Palestine
Imported91.4%
Diesel: 8.6%
Jordan
Diesel41.2%
HFO31.7%
Gas24.6%
RES: 0.4% Imp.: 2.1%
Country Generation[TWh]
Fossil fuel
Net metering
Outages per month
Outageduration
Lebanon 11.5 93.3 % yes Daily 5.2 hJordan 14.6 99.6 % yes 0.2 0.2 hPalestine 5.4 100.0 % yes 8.7 3.7 h
Case 2}Case 1
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4. Proposed hybrid systemsPremises:
• Take full advantage of existing equipment in considered facilities:
• Diesel generators, grid connections …• Distribution lines
• High modularity on integration of:• PV system and Storage system• Priority load management
• Solution based on commercial equipment
Minimum development efforts
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4. Proposed hybrid systemsJordan and Palestine cases● Infrequent outages with short duration:‐ No critical loads‐ Use of gensets not intensive
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• PV = 80 kWp• Battery = 150 kWh• Reduce energy costs• Educational purposes
• PV = 100 kWp• Battery = 150 kWh• Improve energy comfort and
quality of medical activities
4. Proposed hybrid systemsJordan and Palestine cases● Infrequent outages with short duration:‐ No critical loads‐ Use of gensets not intensive
Al Huson University College
Irbid (Jordan)
An‐Najah National University Hospital
Nablus (Palestine)
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4. Proposed hybrid systemsLebanon case● Long duration daily outages‐ Critical and no critical loads‐ Intensive use of gensets
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4. Proposed hybrid systemsLebanon case● Long duration daily outages‐ Critical and no critical loads‐ Intensive use of gensets
• PV = 115 kWp• Battery = 50 kWh• Classrooms, dorms,
sport installations
• PV = 110 kWp• Battery = 100 kWh• Agricultural wholesale
market
Souk Akkar Market
Akkar
• PV = 135 kWp• Battery = 72 kWh• Agricultural activities
and services
The Agricultural Center of the North (CAN)
MejdlayaLiberation Academy Sports Club
Sultaniyeh
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5. Proposed energy management system (EMS)Three levels architecture
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A. Operational LevelTakes directly in charge the equipment of the energy hybrid system:PV inverter, battery inverter, diesel generators and controllers, automatic transfer switch (ATS) …
B. Tactical LevelFirst level to be programmed in the EMSManages the power flows in the energy hybrid system
C. Strategic LevelHighest hierarchy level (programmed in the EMS)Implement strategies for energy management in the energy hybrid system
5. Proposed energy management system (EMS)Three levels architecture
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5. Proposed energy management system (EMS)
Operational level functionalitiesA. Critical loads managementB. Battery charge and discharge managementC. AC bus regulationD. Limitation of PV generator output powerE. Diesel generator management and grid synchronizationF. ATS management
A. Peak shaving operationB. Fuel saver operationC. Spinning Reserve (SR) management
Tactical level functions
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5. Proposed energy management system (EMS)EMS Tactical level operation: Peak shaving
maxgridPVmaxload
maxgridout PPifPPP
PPifP
0
Max PowerLimitation
Maximum power delivered by the grid during peak hours
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5. Proposed energy management system (EMS)EMS Tactical level operation: Fuel saver
NgenNinvload
NgenMPPPV PPifPPP
PPifPP
3.03.0
3.0
Min PowerLimitation
Reducing fuel consumption but ensuring safe operation of genset
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5. Proposed energy management system (EMS)EMS Tactical level operation: Spinning Reserve● 2 diesel generators + PV generator
Coveredby PV
Coveredby diesel
)()()( tPtPPtSR loadPVN
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5. Proposed energy management system (EMS)EMS Tactical level operation: Spinning Reserve● 2 diesel generators + PV generator
)(2.1)(2.0)1( tPtPPtSR loadPVN
+20% variation in demand
‐80% variation in generation
Simultaneously
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6. Future steps● Now the 5 pilot plants are under construction
Ready for commissioning in September
● EMS hardware platform is selected EMS software is developed and now is in under laboratory test process
Thank you for your attention
http://www.medsolarproject.com
Grid-PV-Diesel Hybrid System ManagementApplication to MED-Solar Project Scenarios
Guillermo VelascoJune 12th , 2015
Rome
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