View
17
Download
0
Category
Preview:
Citation preview
Final presentation Intelligent distribution station (IOP-EMVT 06101)
Josco Kester
Presented at Alliander, December 21st, Arnhem,The Netherlands
ECN-L--11-015 January 2011
IOP-EMVT 06101 intelligent distributie station
Josco C.P. Kester (MSc)ECN Intelligent Energy Grids (kester@ecn.nl)
Final presentation Intelligent distributie station(IOP-EMVT 06101)
IOP-EMVT 06101 intelligent distributie station 2kester@ecn.nl
Smart Substation
by improving• load profile• reliability• power quality
supports LV grids
with distributed generation
and demand peaks
IOP-EMVT 06101 intelligent distributie station 3kester@ecn.nl
Project phases
• Requirements
• Functional Design
• Detailed Design
• Assembly
• Laboratory test
• Field demonstration
IOP-EMVT 06101 intelligent distributie station 4kester@ecn.nl
Load profile
Peak load: - 30% (simulation)
PowerMatcherSupply Demand Matching
IOP-EMVT 06101 intelligent distributie station 5kester@ecn.nl
Reliability
• Decrease peak loads
• Coordination of local supply
• UPS function
IOP-EMVT 06101 intelligent distributie station 6kester@ecn.nl
Power Quality
Resonances: - 70% (simulation)
Harmonic CompensationusingVirtual Resistive Harm. Dampening (VRHD)
IOP-EMVT 06101 intelligent distributie station 7kester@ecn.nl
Inside the prototype
LV Cabinet MV Cabinet
IOP-EMVT 06101 intelligent distributie station 10kester@ecn.nl
Lab tests in FPG-Lab
May 2009 – February 2010
IOP-EMVT 06101 intelligent distributie station 11kester@ecn.nl
FPG-Lab: fault ride through (anti-islanding mode)
<1ms, 100%, 10kV, symmetrical three-phase, voltage dipat IntDS passive load of 470kVA (115kW) and ESI charging at 7kVA
IOP-EMVT 06101 intelligent distributie station 12kester@ecn.nl
FPG-Lab: islanding
ESI System operating in islanding mode after removal of MV supply(passive resistive load of 20kW applied)
IOP-EMVT 06101 intelligent distributie station 13kester@ecn.nl
Tests FPG-Lab: results
• safe operation possible
• harmonic compensation reduces harmonics
• intDS supports island operation
• protection issues in laboratory set-up
• APPROVED for field operation
IOP-EMVT 06101 intelligent distributie station 14kester@ecn.nl
Field demonstration
Apeldoorn, Het Kasteel (Jun 2010 - )
IOP-EMVT 06101 intelligent distributie station 16kester@ecn.nl
Field demonstrationTested:• stable operation• harmonic compensation• voltage stability• flicker reduction
Not tested:• controlling microCHPs• active power control (in preparation)
IOP-EMVT 06101 intelligent distributie station 17kester@ecn.nl
Field demonstration: PQ classification
17
A - very goodC - sufficientF - very bad
IOP-EMVT 06101 intelligent distributie station 18kester@ecn.nl
Field demonstration: Reference PQ (wk20)
18
V (dips) Δfreq flicker THD unbalance
Not available
Connection.error
IOP-EMVT 06101 intelligent distributie station 19kester@ecn.nl19
Field demonstration: Reference harmonics (wk20)
THD 3rd 5th 7th 11th 13th
All PQ characteristics within limits
IOP-EMVT 06101 intelligent distributie station 20kester@ecn.nl
Field demonstration: PQ
V (dips) Δfreq. Flicker THD Unb.
17-19 prep
20 ref
21-26 V
29 harm
30 ref
35-39 V
42-43 flicker
IOP-EMVT 06101 intelligent distributie station 21kester@ecn.nl
Field demonstration: harmonics
THD 3rd 5th 7th 11th 13th
17-19 prep
20 ref
21-26 V
29 harm
30 ref
35-36 V
42-43 flicker
IOP-EMVT 06101 intelligent distributie station 22kester@ecn.nl
Field demonstration: THD
Reference Harmonic compensation
THD reduced by 15%
IOP-EMVT 06101 intelligent distributie station 23kester@ecn.nl
Field demonstration: 3rd Harmonic
Reference Harmonic compensation
3rd harmonic not reduced (very low)
IOP-EMVT 06101 intelligent distributie station 24kester@ecn.nl
Field demonstration: 5th harmonic
Reference Harmonic compensation
5th harmonic reduced by 20%
IOP-EMVT 06101 intelligent distributie station 25kester@ecn.nl
Field demonstration: 7th harmonic
Reference Harmonic compensation
7th harmonic reduced by 15%
IOP-EMVT 06101 intelligent distributie station 26kester@ecn.nl
Field demonstration: flicker
Reference Flicker reduction
Flicker reduced from max 0.4 to max 0.2
IOP-EMVT 06101 intelligent distributie station 27kester@ecn.nl
Field demonstration: voltage stabilityReference Voltage Control
Voltage excursions reduced from +/- 4 V to +/- 0.8 V
IOP-EMVT 06101 intelligent distributie station 28kester@ecn.nl
Spin-off
• Imtech: Smart Trafo
• Exendis: ESI
• KEMA: FPG-Lab
• Alliander: test environment
• ECN: PowerMatcher
• Eaton, Alfen: sustainable electricity supply
IOP-EMVT 06101 intelligent distributie station 29kester@ecn.nl
Spin-off
• Imtech: Smart Trafo
• Exendis: ESI
• KEMA: FPG-Lab
• Alliander: test environment
• ECN: PowerMatcher
• Eaton, Alfen: sustainable electricity supply
IOP-EMVT 06101 intelligent distributie station 30kester@ecn.nl
Conclusions
• Lab tests• anti-islanding and islanding tested and approved• specifications tested and documented • approved for field operation
• Field demonstration • tests with microCHPs not possible • active power control not yet working• smart substation has operated without incidents since June 2010• voltage stability improved • THD improved• flicker improved
• International interest for intDS and components
Recommended