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| | |} | | |} |
| | | | |
| | + | <br/> |
| | | | |
| | === SciGrid === | | === SciGrid === |
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| | <br/> | | <br/> |
| | | | |
| | + | <br/> |
| | | | |
| | === Bialek European Model === | | === Bialek European Model === |
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| | We now list the impedances of the transmission lines, which can be used for example in the [http://www.electrical4u.com/medium-transmission-line/ lumped pi model]. | | We now list the impedances of the transmission lines, which can be used for example in the [http://www.electrical4u.com/medium-transmission-line/ lumped pi model]. |
| | | | |
| − | {| cellspacing="1" cellpadding="1" border="1" style="width:100%" | + | {| cellspacing="1" cellpadding="1" border="1" class="wikitable sortable" style="width:100%" |
| | |+ Electrical properties for single circuits | | |+ Electrical properties for single circuits |
| | |- | | |- |
| Line 204: |
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| | ! scope="col" | Series inductive reactance (Ohm/km) | | ! scope="col" | Series inductive reactance (Ohm/km) |
| | ! scope="col" | Shunt capacitance (nF/km) | | ! scope="col" | Shunt capacitance (nF/km) |
| − | ! scope="col" | Current limit (A) | + | ! scope="col" | Current thermal limit (A) |
| | + | ! scope="col" | Apparent power thermal limit (MVA) |
| | |- | | |- |
| | | 220 | | | 220 |
| Line 213: |
Line 216: |
| | | 12.5 | | | 12.5 |
| | | 1290 | | | 1290 |
| | + | | 492 |
| | |- | | |- |
| | | 380 | | | 380 |
| Line 221: |
Line 225: |
| | | 13.8 | | | 13.8 |
| | | 2580 | | | 2580 |
| | + | | 1698 |
| | |} | | |} |
| | | | |
| − | In the table the current limit is calculated as 645 A per wire at an outside temperature of 20 degrees Celsius. | + | In the table the thermal limit for the current is calculated as 645 A per wire at an outside temperature of 20 degrees Celsius. |
| | + | |
| | + | The thermal limit for the apparent power is derived from the per-phase current limit $I$ and the line-to-line voltage $V$ by $S = \sqrt{3}VI$. |
| | | | |
| | Sources for the electrical parameters: | | Sources for the electrical parameters: |
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| | Oeding and Oswald [http://www.springer.com/us/book/9783642192456 Elektrische Kraftwerke und Netze], 2011, Chapter 9 | | Oeding and Oswald [http://www.springer.com/us/book/9783642192456 Elektrische Kraftwerke und Netze], 2011, Chapter 9 |
| | | | |
| − | See also comparable parameters in the [http://www.dena.de/fileadmin/user_upload/Projekte/Energiesysteme/Dokumente/denaVNS_Abschlussbericht.pdf DENA Distribution Network Study], 2012, Table 5.6 and [https://www.zml.kit.edu/downloads/Elektrische_Energieuebertragung_Leseprobe_Kapitel_2.pdf KIT Electrical Parameters Reading Sample], 2013. | + | See also comparable parameters in: |
| | + | |
| | + | *[http://www.dena.de/fileadmin/user_upload/Projekte/Energiesysteme/Dokumente/denaVNS_Abschlussbericht.pdf DENA Distribution Network Study], 2012, Table 5.6 |
| | + | *[https://www.diw.de/documents/publikationen/73/diw_01.c.440963.de/diw_datadoc_2014-072.pdf DIW Data Documentation 72], 2014, Table 15, taken from Kießling, F., Nefzger, P., Kaintzyk, U., "Freileitungen: Planung, Berechnung, Ausführung", 2001, Springer |
| | + | *[https://www.zml.kit.edu/downloads/Elektrische_Energieuebertragung_Leseprobe_Kapitel_2.pdf KIT Electrical Parameters Reading Sample], 2013 |
| | | | |
| | <br/> | | <br/> |
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| | == Combining electrical parameters for multiple circuits == | | == Combining electrical parameters for multiple circuits == |
| | | | |
| − | In the table above, the impedances are quoted for a single circuit. The resistance and inductances are in series, so decrease proportional to the number of parallel circuits (roughly - the geometry changes mean the series inductances are slightly modified). Similarly the capacitance is in shunt so increases proportional to the number of parallel circuits (again, roughly because of changing geometry). | + | In the table above, the impedances are quoted for a single circuit. The resistance and inductive reactance decrease proportional to the number of parallel circuits (with small modifications to the inductance due to the different geometry of the parallel circuits). Similarly the capacitance increases proportional to the number of parallel circuits (again, roughly because of changing geometry). |
| | | | |
| | <br/> | | <br/> |
Revision as of 10:17, 16 October 2015
Network datasets by region
Europe
| Name
|
Version
|
Year
Published
|
Represented year
|
Region
|
Num. Substations or Buses
|
Num. Lines
|
Contains
|
Downloadable
|
Licence
|
| SciGrid
|
0.1
|
2015
|
2015
|
Germany, but in principle whole world
|
479
|
765
|
Topology, Impedances
|
Yes
|
Apache Licence, Version 2.0
|
| Bialek European Model
|
2
|
2013
|
2009
|
Continental Europe
|
1494 buses
|
2322
|
Topology, Impedances, Loads, Generators
|
Yes
|
Unclear
|
| National Grid ETYS 2014 Model
|
|
2014
|
2014
|
Great Britain
|
365
|
316
|
Topology, Impedances, Loads, Generators
|
Yes
|
Unclear
|
Austrian Power Network Grid
|
|
2015
|
2015
|
Austria
|
|
~100
|
Topology, Impedances
|
Yes
|
Unclear
|
| ENTSO-E STUM
|
|
|
2020?
|
Continental Europe?
|
1000s
|
1000s
|
Topology, Impedances
|
Requires registration
|
Unclear
|
SciGrid
SciGrid is a project which started in 2014 and will be running for three years. The aim of SciGRID is to develop an open and free model of the European transmission network. It is carried out by NEXT ENERGY - EWE Research Centre for Energy Technology, an independent non-profit institute at the University of Oldenburg, Germany, and funded by the German Ministry of Education and Research, and the initiative Zukunftsfähige Stromnetze.
Bialek European Model
The 2nd version of the Bialek European Model is downloadable as an Excel file and in the format of the proprietary modelling software PowerWorld. The model covers voltages from 110 kV (a single line in the Balkans) up to 380 kV.
The 1st version was released in 2002-2004 and is no longer available (see Archive mirror). The 1st version did not contain the Balkans region.
The methodology and validation for the 1st version of the model can be found in the paper Approximate model of European interconnected system as a benchmark system to study effects of cross-border trades by Zhou and Bialek, 2005.
National Grid Model
National Grid Electricity Ten Year Statement 2014 Model
Austrian Power Network Grid Model
Austrian Power Network Grid
ENTSO-E STUM
ENTSO-E makes available a model of the continental European system. Registration is required to download it on the ENTSO-E STUM page.
ENTSO-E Initial Dynamic Model of Continental Europe
ENTSO-E Initial Dynamic Model of Continental Europe
Requires registration. Can model "the main frequency response of the system as well as the main inter-area oscillation modes".
Global
OpenStreetMap
The global OpenStreetMap (OSM) power grid data is visible at ITO World Electricity Distribution and Enipedia has nightly extracts of the power grid from OSM.
See IRENA News Announcement
Non-Region Specific
RWTH Aachen Transmission Expansion Problem Benchmark Case
RWTH Aachen has published A Benchmark Case for Network Expansion, which is "derived from the IEEE 118 bus network and modified in accordance with European standards such as a nominal frequency of 50Hz, the use of conventional voltage levels, and conductor dimensions."
Registration is required to download the model.
The paper describing the model is A benchmark case for network expansion methods, 2015.
Other lists of network datasets
Enipedia list
Edinburgh University list
Free software for power system analysis
PyPower in Python
PowerGAMA in Python
MATPOWER in Matlab or Octave
OpenDSS in Pascal?
PSAT in Matlab or Octave
Other lists of power system analysis software
http://www.openelectrical.org/wiki/index.php?title=Power_Systems_Analysis_Software
https://nkloc.wordpress.com/2011/11/11/power-system-simulation-software-list/
Typical transmission line electrical parameters
European 50 Hz transmission
The main European alternating current (AC) electricity system is operated at 50 Hz. (Other networks, such as those for electrified trains, operate at other frequencies and some transmission lines use direct current.)
On the continent AC transmission voltages are typically 220 kV or 380 kV (sometimes quoted as 400 kV, since network operators often run their grid above nominal voltage to reduce network losses).
220 kV overhead lines are typically configured with a bundle of 2 wires per phase with wires of cross-section Al/St 240/40.
380 kV overhead lines are typically configured with a bundle of 4 wires per phase with wires of cross-section Al/St 240/40.
We now list the impedances of the transmission lines, which can be used for example in the lumped pi model.
Electrical properties for single circuits
| Voltage level (kV)
|
Type
|
Conductors
|
Series resistance (Ohm/km)
|
Series inductive reactance (Ohm/km)
|
Shunt capacitance (nF/km)
|
Current thermal limit (A)
|
Apparent power thermal limit (MVA)
|
| 220
|
Overhead line
|
2-wire-bundle Al/St 240/40
|
0.06
|
0.301
|
12.5
|
1290
|
492
|
| 380
|
Overhead line
|
4-wire-bundle Al/St 240/40
|
0.03
|
0.246
|
13.8
|
2580
|
1698
|
In the table the thermal limit for the current is calculated as 645 A per wire at an outside temperature of 20 degrees Celsius.
The thermal limit for the apparent power is derived from the per-phase current limit $I$ and the line-to-line voltage $V$ by $S = \sqrt{3}VI$.
Sources for the electrical parameters:
Oeding and Oswald Elektrische Kraftwerke und Netze, 2011, Chapter 9
See also comparable parameters in:
- DENA Distribution Network Study, 2012, Table 5.6
- DIW Data Documentation 72, 2014, Table 15, taken from Kießling, F., Nefzger, P., Kaintzyk, U., "Freileitungen: Planung, Berechnung, Ausführung", 2001, Springer
- KIT Electrical Parameters Reading Sample, 2013
Combining electrical parameters for multiple circuits
In the table above, the impedances are quoted for a single circuit. The resistance and inductive reactance decrease proportional to the number of parallel circuits (with small modifications to the inductance due to the different geometry of the parallel circuits). Similarly the capacitance increases proportional to the number of parallel circuits (again, roughly because of changing geometry).
