Smart Substation Transport Services for the Distribution Grid
Operator Josco C.P. Kester [email protected]
Slide 3
Introduction TNO connects people and knowledge to create
innovations that boost the sustainable competitive strength of
industry and well-being of society public / private independent
industrial innovation information society ICT energy mobility
research and development The Netherlands turnover 600M applied
physics measurements & control technology hiking Energie
Delfland electric power systems consultancy research &
development ECN 2 power electronic technology
Slide 4
IOP-EMVT 06101 intelligent distributie station 3 [email protected]
Smart Substation A 10/0.4 kV distribution substation that supports
LV grids with distributed generation and demand peaks 3
Slide 5
IOP-EMVT 06101 intelligent distributie station 4 [email protected]
How will our energy supply look in 2050? 4 Power grid operators
face new requirements
Slide 6
IOP-EMVT 06101 intelligent distributie station 5 [email protected]
Smart Substation Requirements Functional Design Detailed Design
Prototype Assembly Laboratory tests Field demonstration (May 2007-
December 2010) 5
Slide 7
IOP-EMVT 06101 intelligent distributie station 6 [email protected]
Inside the prototype LV Cabinet 6 MV Cabinet
Slide 8
IOP-EMVT 06101 intelligent distributie station 7 [email protected]
LV cabinet 7 3. Monitoring and control 2. Sensors 1. Electric
energy storage
Slide 9
IOP-EMVT 06101 intelligent distributie station 8 [email protected]
MV cabinet 8 Switchgear indicators Smart Trafo - trafo Smart Trafo
control unit
Slide 10
IOP-EMVT 06101 intelligent distributie station 9 [email protected]
Smart Substation by improving load profile reliability power
quality A 10/0.4 kV distribution substation that supports LV grids
with distributed generation and demand peaks 9
Slide 11
IOP-EMVT 06101 intelligent distributie station 10 [email protected]
Lab tests in FPG-Lab May 2009 February 2010 10
Slide 12
IOP-EMVT 06101 intelligent distributie station 11 [email protected]
Field demonstration Apeldoorn, Het Kasteel (Jun 2010 - ) 11
IOP-EMVT 06101 intelligent distributie station 13 [email protected]
Reliability Decrease peak loads Coordination of local supply*
Intentional islanding* * not yet fully tested 13
Slide 15
IOP-EMVT 06101 intelligent distributie station 14 [email protected]
FPG-Lab: islanding ESI System operating in islanding mode after
removal of MV supply (passive resistive load of 20kW applied)
14
Slide 16
IOP-EMVT 06101 intelligent distributie station 15 [email protected]
Power Quality Resonances: - 70% (simulation) Harmonic Compensation
with Virtual Resistive Harmonic Dampening (VRHD) 15
Slide 17
IOP-EMVT 06101 intelligent distributie station 16 [email protected]
Smart Substation: results field demonstration Tested in an
operational grid (easy circumstances) stable operation harmonic
compensation voltage stability flicker reduction Not yet tested
controlling microCHPs active power control (in preparation) rough
conditions Duration test ongoing 16
Slide 18
IOP-EMVT 06101 intelligent distributie station 17 [email protected]
Field demo: Reference harmonics (wk20) THD 3rd 5th 7th 11th 13th
All PQ characteristics within limits 17 very good sufficient very
bad
Slide 19
IOP-EMVT 06101 intelligent distributie station 18 [email protected]
Field demo: THD (May - October 2010) THD3rd 5th 7th 11th 13th 17-19
prep 20 ref 21-26 V 29 harm 30 ref 35-36 V 42-43 flicker 18
Slide 20
IOP-EMVT 06101 intelligent distributie station 19 [email protected]
Field demo: Harmonic Compensation (THD) Off On THD reduced by 15%
2.5 0.0 19
Slide 21
IOP-EMVT 06101 intelligent distributie station 20 [email protected]
Field demo: Harmonic Compensation (5th) Off On 5th harmonic reduced
by 20% 20 2.5 0.0 2.5 0.0
Slide 22
IOP-EMVT 06101 intelligent distributie station 21 [email protected]
Field demo: Reference PQ (wk20) V (dips) freq flicker THD unbalance
Not applicable Connection. error 21 very good sufficient very
bad
Slide 23
IOP-EMVT 06101 intelligent distributie station 22 [email protected]
Field demo: PQ (May - October 2010) V(dips) freq. Flicker THD Unb.
17-19 prep 20 ref 21-26 V 29 harm 30 ref 35-39 V 42-43 flicker 22
Not applicable Connection. error
Slide 24
IOP-EMVT 06101 intelligent distributie station 23 [email protected]
Field demonstration: Flicker reduction OffOn Flicker reduced from
max 0.4 to max 0.2 23 1.0 0.0 1.0 0.0
Slide 25
IOP-EMVT 06101 intelligent distributie station 24 [email protected]
Field demonstration: Voltage stability OffOn Voltage excursions
reduced from +/- 4 V to +/- 0.8 V 24
Slide 26
IOP-EMVT 06101 intelligent distributie station 25 [email protected]
Smart Trafo Voltage distribution at input Voltage distribution at
output 25
Slide 27
IOP-EMVT 06101 intelligent distributie station 26 [email protected]
26 Flex Power Grid Lab (FPGLab) offers services for development and
testing of SmartGrids and power electronics for industrial high
voltage (24kV), power up to 1MVA by offering a predefined bad grid
or load independent laboratory, operated by KEMA, Arnhem
(Netherlands) www.flexpowergridlab.com Applications
Slide 28
IOP-EMVT 06101 intelligent distributie station 27 [email protected]
27 Key figures make test facility unique Voltage level up to 24 kV
DC to 75 Hz frequency range Continuous power up to 1 MVA Up to
>25 th harmonics 4 Quadrant operation Synchronization with other
source Controllable power exchange Adjustable loads (0.5MW, 1MVAr)
A freely programmable nightmare grid 1 MVA 2.4 kHz 24 kV 1 MVA
Slide 29
IOP-EMVT 06101 intelligent distributie station 28 [email protected]
Spin-off Alfen: ESI Imtech: Smart Trafo 2.0 KEMA: FPG-Lab
Alliander: test environment TNO : PowerMatcher Eaton: equipment for
sustainable electricity supply, home automation 28
Slide 30
IOP-EMVT 06101 intelligent distributie station 29 [email protected]
Recommendations Continue monitoring Test active power control
Perform test including microCHPs Demonstrations take more time than
one expects even when one takes that into account Significant cost
reduction possible Significant volume reduction possible Consider
mobile applications 29
Slide 31
IOP-EMVT 06101 intelligent distributie station 30 [email protected]
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 in Smart
Substation 30 Questions? [email protected] +31-88-866 7392