2. university “politehnica” of bucharest, 3. university ...• lucian toma, mircea eremia, dorin...
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PolyGrid – A two-vector energy independent microgrid at
University “Politehnica” of Bucharest
Lucian Toma 1, Dumitru Popescu 2, Mihaela Albu 3, Constantin Bulac 1, Ion Necoara 2
Abstract: With the advent of new technologies running on renewable energy sources (e.g. wind and solar) and small size but highly efficient fossil fuelled power plants (i.e. natural gas and petroleum), the number of distributed generators in the low voltage and medium voltage networks has significantly increased in the last decade and will continue to increase in the near future. The electrical grid of the campus of University POLITEHNCA of Bucharest is connected with the main distribution grid of the Bucharest City through two 10 kV cables from a central substation owned by the university. Since this substation acts as a hub, the electrical grid of the campus can be seen as a microgrid
Index Terms: Microgrid, Distributed Generation, Virtual Power Plant, Controllable Load, Independent Consumer, Active Network, Smart Grid, Educational Platform
1. University “Politehnica” of Bucharest, Faculty of Power Engineering
2. University “Politehnica” of Bucharest, Faculty of Automation and Computer Science
3. University “Politehnica” of Bucharest, Faculty of Electrical Engineering
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P [kW] 25
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Fig. 2 Variaţia puterii generată de o instalaţie fotoelectrică cu puterea nominală
de 30 kWp, pe durata a 25 zile.
Pinst = 30 kW
Eav = 6 kWh/h
CF = 20%
Commissioned: 26 May 2006
Payback time >> Lifetime
Commissioned: 25 March 2010
Jenbacher Engines
Hoval boilers
2 x 800 kWel
3 x 1200 kWth
ηel = 38% ηth = 42% ηtotal = 80%
Fuel: Natural Gas
Gas Engine Power Plant Photovoltaic Power Plant
Physical Layer: PolyGrid Infrastructure
P&E
A&C
R
Elth
Metal
Trans MechIMST
Smart
House
Wind Solar Energy price
PolyGrid
Superv
isio
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& C
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External data
To public grid
Dispatch
Natural gas
10 kV / 10 kV Station
To national dispatch center
Dispatch and Power Market Layer
D-EMS functions
2 x 800 kW 10 kW
30 kW
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Captive
Total Load
CE
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Salade sport
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Facultatea de AutomaticFacultatea de Inginerie MecanicFacultatea de Ingineria
Facultatea de Ingineria Sistemelor BiotehniceTr - Facultatea de TransporturiSIM - Facultatea de Ingineria MaterialelorILS - Facultatea de Inginerie în Limbi Str
Facultatea de
ăAC - ă şi CalculatoareIMM - ă şi MecatronicăIMST - şi Managementul Sistemelor TehnologiceISB -
Ştiinţa şi ăine
ŞA - Ştiinţe Aplicate MetrouGrozăveşti
MetrouPolitehnica
MetrouPolitehnica
RATB “ ”UPB61, 62, 136, 236, 336
RATB “ ”Politehnica601
AccesBd. Iuliu Maniu
RATB “ ”Iuliu Maniu1, 11 ,35
Bule
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asile
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Str. Econom Cezărescu
Dâmboviţa
Splaiul Independenţei
PT2 Metalurgie
PT Dedurizare
PT Mecanica A
PT Mecanica B
PT1 Metalurgie
PT1 Elth
PT2 Elth
STATIE
PT3 Elth
Biblioteca
Înv. general
D2/D5
D1/D4
D2/D5
D2/D5
D1/D4
D1/D4
D1/D4
D3/D6
Militari
Distrib. St.
Cotroceni
Distrib. St.
Controllable Load –
Smart House Small Wind
Turbines
Selling Electrical Energy Romanian Power Exchange
- OPCOM
Selling Thermal Energy
Bucharest
District 6
(the neighborhood)
• Lucian Toma, Mircea Eremia, Dorin Bică – Economic operation of distributed energy resources in a microgrid, Proceedings of 2013 IEEE Grenoble
PowerTech, Grenoble, France, 16-20 June 2013. • Mihai Sănduleac, Mircea Eremia, Lucian Toma, Paul Borza – Integrating the Electrical Vehicles in the Smart Grid through Unbundled Smart Metering and
multi-objective Virtual Power Plants, IEEE PES Innovative Smart Grid Technology Europe, ISGT-2011, Manchester, 5-7 December 2011.
• Mihaela Albu, E. Kyriakides, G. Chicco, M. Popa, A. Nechifor -- Online Monitoring of the Power Transfer in a DC Test Grid, IEEE Trans. on Instr. and
Meas., vol. 59 , Issue: 5 , 2010
DC ring @ 230 V, 5 kW laboratory and classroom
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