1. No category

IT Architecture
Session 4a
James Gooding & Adrian Putley
UK Power Networks & CGI
In Partnership with:
 2011. UK Power Networks. All rights reserved
1
Agenda
• Before Low Carbon London
• Our partners
• The journey through LCL
• Lessons from the trials
• In the future – post 2030
 2011. UK Power Networks. All rights reserved
2
Low Carbon London
Importance of Information Technology
• The project that has trialled and demonstrated a broad range of smarter potential
approaches to how DNOs may invest and operate in the future.
• LCL has brought together leading industry specialists to emulate the 2020/2030
electricity supply chain.
System
Operator
Distribution
Network
Operator
Supplier
Customer
• IT/OT requirements and architectures for smart grid management techniques will be
relevant to:
– Network monitoring;
– Smart meter utilisation;
– Forecasting;
– Planning;
– Control and operations; and
– Commercial aspects such as billing and settlements.
 2011. UK Power Networks. All rights reserved
3
Typical historical UK DNO IT
architecture development
Modelling Tools
OMS
DMS
GIS
some DNOs still have raster
datasets
Enterprise Asset (& Work)
Management
SCADA
NetworkPremise
Linkage
Management
Premise
Address
Management
PAF data (now AddressBase)
 2011. UK Power Networks. All rights reserved
MPRS
4
Typical historical UK DNO IT
architecture development
OMS added as extension of HV
DMS, or separate application.
Modelling Tools
OMS
HV wallboards
migrated later.
Connectivity model, pan/zoom
graphics and switching/safety logic
added – initially at EHV only.
DMS
Early GISs often used raster scans of
traditional records. Original main use
was for printing by field staff.
GIS
some DNOs still have raster
datasets
Enterprise Asset (& Work)
Management
SCADA
Gradual digitisation of
remaining raster
layers.
Early SCADA implementation at
EHV.
Still relatively modest level of
systems integration
NetworkPremise
Linkage
Management
Network-premise
linkage handling added.
 2011. UK Power Networks. All rights reserved
EAM originated as maintenance
scheduling system.
Premise
Address
Management
PAF data (now AddressBase)
MPRS
5
Low Carbon London
Proposed solution diagram
Carbon Tools
Distribution Network Management System
LCL Control
Centre
Learning Lab
Wind Twinning
Existing
SCADA
ENMAC
Operational Data Store
Energy Suppliers
Active Network Management
Existing
monitoring RTUs
New monitoring
Commercial Aggregators
Smart Meter Data Collection
Residential customers
SMEs / Schools / Community
centres, etc.
EV Charge Points
Distributed
Generation
I&C
Customers
Customer / stakeholder engagement
 2011. UK Power Networks. All rights reserved
6
Low Carbon London
Logical Architecture
Source: LCL Report D2
 2011. UK Power Networks. All rights reserved
7
LCL Engineering
Instrumentation Zones
• Three EIZs: Brixton, Merton and Queen’s Park.
• c. 31,000 MPANs across the three EIZs
• 106 meters located at the end of feeders: proxy for voltage
measurements at LV customer premises
Source: LCL Report D2
 2011. UK Power Networks. All rights reserved
8
Network Visibility & Data
Collection – History
EHV
Main
Substation
Voltage, Current,
Active & Reactive
Power
each Tx circuit
T5000
RTU
Current per feeder
Voltage, Current per phase
Total kVA, Overall Load
Factor, Air Temperature
all at Tx tail
HV
Voltage at LV
busbar
Current, Load
Factor,
Harmonics per
feeder
all per phase
Secondary
Substations
LCL
RTU
Tyco /
EATL
RTU
Callisto
RTU
Voltage Current, Load
Factor, Harmonics
per fuse or link
LV
Link
Box
Smart Meters
MPANs
 2011. UK Power Networks. All rights reserved
Active & Reactive
Import & Export
Average V
Sag/Swell V
(events)
9
Data integration and quality
Key findings
• Integrated network topology & asset model needs data combined
from several source systems – not straightforward, some level of
record ID mismatches
• Network-premise connectivity data is the hardest to achieve high
quality
– …but HH MPANs and those of PCs 5-8 offer low-hanging fruit for
improvements: <1% of all premises, but PCs 5-8 each consume
as much as 39 domestic premises and HH MPANs even more.
 2011. UK Power Networks. All rights reserved
10
Building on initial LCL analysis (C1)
• Only 0.35% of all the phases measured showed more than 1% of
readings outside of statutory limits using 10 minute data resolution
• Voltage on the London network is towards the higher end of the
allowable limits
• Lower voltage limit is responsible for more voltage
excursions currently
Source: LCL Report D2
 2011. UK Power Networks. All rights reserved
11
Sensitivity analysis
Alerts per year for EIZs
Voltage limits: very high extreme above the statutory limits
(+14% / -10%), the statutory limit (+10% / -6%) and two levels under
that (+12% / -8% and (+8% / -5%)
# alerts /yr
+8% / -5%
+10% / -6%
+12% / -8%
+14% / -10%
10 min duration
High:
121,453
Low:
2,647
Total:
124,100
High:
61
Low:
1,563
Total
1,624
High:
11
Low:
641
Total
652
High:
1
Low:
415
Total:
416
Source: LCL Report D2
 2011. UK Power Networks. All rights reserved
30 min duration
High:
56,445
Low:
1078
Total
57,523
High:
1
Low:
691
Total:
692
High:
0
Low:
414
Total:
414
High:
0
Low:
355
Total:
355
60 min duration
High:
26,194
Low:
653
Total:
26,847
High:
0
Low:
499
Total:
499
High:
0
Low:
367
Total:
367
High:
0
Low:
332
Total:
332
12
Power quality management process
Call
Customer
Service
Centre
Update
customer
SM
voltage
alerts
Record
result s
SM
Known fault
on network
causing
disturbance?
Raise
job
Investigate
site
on site
data
Request
Install
and
analyse
additional
monitoring
smart
meter
equipment
data
Further
analysis
required?
Evaluate
options
Voltage complaints
supervisor
SM
Update /
Close job
Update
customer
Reconfigure
network
settings
Design
system
upgrade
SM
Source: LCL Report D1
 2011. UK Power Networks. All rights reserved
13
Future Scenarios
LCL Report D2 studied two future scenarios:
Scenario
Period
Date
Description
Characteristics
Late ED1
2021
High-Confidence Near-Term
Post-SMIP; DSR use; conservative
LCT take-up estimates
ED2
2027
Longer-Term
More optimistic take-up estimates;
includes ANM
A
B
Today’s presentation is focussed on Scenario A.
 2011. UK Power Networks. All rights reserved
14
Smart SM voltage reporting
configuration
Source: LCL Report D2
 2011. UK Power Networks. All rights reserved
15
IVR
Web
DUoS Billing
CRM
Planning Tools
Financials
OMS
Outage data
Network-premise data
improvements
DNO IT/OT
Architecture
Evolution
Historian
Control diagram
Time series
DMS
GIS
Network topology, asset nameplate & premise
connectivity data
Network state data
Asset nameplate &
condition data
SCADA
EAM
DTN gateway
RTUs
Field Force
Source: LCL Report D2
 2011. UK Power Networks. All rights reserved
16
IVR
Web
DUoS Billing
CRM
Planning Tools
Financials
OMS
Outage data
Network-premise data
improvements
Historian
Control diagram
Time series
Real-time modelling
Additional monitoring, and
data exchange with TSO
DMS
GIS
Network topology, asset nameplate & premise
connectivity data
Asset nameplate &
condition data
Historical
LV data
EAM
Network state data
Secondary
SCADA
SCADA
DTN gateway
ICCP
Historical
readings
Field Force
Source: LCL Report D2
 2011. UK Power Networks. All rights reserved
Portable
Portable
Monitor
Monitor
RTUs
TSO
17
Last gasps/first breaths
Voltage alerts
New SM installations
Voltage reporting settings
CEP
IVR
Web
DUoS Billing
E
Q
(high volume buffer)
CRM
SM Voltage
Alert Configurer
Planning Tools
Financials
OMS
E
V
Outage data
Network-premise data
improvements
Profile
Repository
Historian
Control diagram
Time series
Historical profiles
E
Q
V
Real-time modelling
HH meter
advances
Voltage logs
DMS
Profiles
GIS
Reading
requests
NDAG
(gateway)
Network topology, asset nameplate & premise
connectivity data
Profile
Aggregator
Consumption
Readings
E
Asset nameplate &
condition data
Energisation state check
Q
Ad-hoc query
V
Voltage logs request
Historical
LV data
HH Meter
Advances
EAM
Network state data
Secondary
SCADA
SCADA
DTN gateway
ICCP
DCC
SMs
LCTs
LCTs
Smart Metering
systems
E
Q
V
Historical
readings
Field Force
Source: LCL Report D2
 2011. UK Power Networks. All rights reserved
Portable
Portable
Monitor
Monitor
RTUs
TSO
18
Last gasps/first breaths
Voltage alerts
New SM installations
Voltage reporting settings
Planning Tools
CEP
IVR
Web
DUoS Billing
E
Q
(high volume buffer)
CRM
SM Voltage
Alert Configurer
LFMM
Financials
I&C LCT
master data
OMS
E
Payment requests
V
Profile
Repository
DSR
Settlements
Outage data
Network-premise data
improvements
Historian
Control diagram
DSR
symbols
Dispatch
requests
Time series
Historical profiles
E
Q
V
Real-time modelling
HH meter
advances
Voltage logs
Metered
curtailment
readings
DMS
Invoices
Profiles
GIS
Reading
requests
NDAG
(gateway)
Network topology, asset nameplate & premise
connectivity data
LCT master data
Profile
Aggregator
Consumption
Readings
E
Asset nameplate &
condition data
Energisation state check
Q
Ad-hoc query
V
Voltage logs request
Historical
LV data
HH Meter
Advances
EAM
Network state data
LCT state data
Secondary
SCADA
Unavailability
data
DSR gateway
SCADA
DTN gateway
ICCP
DCC
E
Q
V
Historical
readings
Field Force
SMs
LCTs
LCTs
Source: LCL Report D2
 2011. UK Power Networks. All rights reserved
Portable
Portable
Monitor
Monitor
RTUs
DSR facilities
TSO
DSR owners/
aggregators
19
Last gasps/first breaths
Voltage alerts
New SM installations
Voltage reporting settings
Analytics,
forecasting &
planning
facilities
Planning Tools
CEP
IVR
Web
DUoS Billing
E
Q
(high volume buffer)
CRM
SM Voltage
Alert Configurer
LFMM
Financials
I&C LCT
master data
OMS
E
Element
Energy
Model
Forecast Preparation
Payment requests
V
Analytics
(manual using end-user
computing tools)
Forecast
Repository
Forecast profiles
E
Q
V
Profile
Repository
Historian
State estimation
Historical profiles
Control diagram
DSR
symbols
Time series
Events
Switch states
Dispatch
requests
Real-time modelling
HH meter
advances
Voltage logs
DSR
Settlements
Outage data
Network-premise data
improvements
Metered
curtailment
readings
DMS
Invoices
Profiles
GIS
Reading
requests
NDAG
(gateway)
Network topology, asset nameplate & premise
connectivity data
LCT master data
Profile
Aggregator
Consumption
Readings
E
Asset nameplate &
condition data
Energisation state check
Q
Ad-hoc query
V
Voltage logs request
Historical
LV data
HH Meter
Advances
EAM
Network state data
LCT state data
Secondary
SCADA
Unavailability
data
DSR gateway
SCADA
DTN gateway
ICCP
DCC
E
Q
V
Historical
readings
Field Force
SMs
LCTs
LCTs
Source: LCL Report D2
 2011. UK Power Networks. All rights reserved
Portable
Portable
Monitor
Monitor
RTUs
TSO
DSR owners/
aggregators
20
Last gasps/first breaths
Voltage alerts
New SM installations
Voltage reporting settings
Planning Tools
CEP
IVR
Web
DUoS Billing
E
Q
(high volume buffer)
CRM
SM Voltage
Alert Configurer
LFMM
Financials
I&C LCT
master data
OMS
E
Element
Energy
Model
Forecast Preparation
Payment requests
V
Analytics
(manual using end-user
computing tools)
Forecast
Repository
Forecast profiles
E
Q
V
Profile
Repository
Historian
State estimation
Historical profiles
Control diagram
DSR
symbols
Time series
Events
Switch states
Dispatch
requests
Real-time modelling
HH meter
advances
Voltage logs
DSR
Settlements
Outage data
Network-premise data
improvements
Metered
curtailment
readings
DMS
Invoices
Profiles
GIS
Reading
requests
NDAG
(gateway)
Network topology, asset nameplate & premise
connectivity data
LCT master data
Profile
Aggregator
Consumption
Readings
E
Asset nameplate &
condition data
Energisation state check
Q
Ad-hoc query
V
Voltage logs request
Historical
LV data
HH Meter
Advances
EAM
Network state data
LCT state data
Secondary
SCADA
Unavailability
data
DSR gateway
SCADA
DTN gateway
ICCP
DCC
E
Q
V
Historical
readings
Field Force
SMs
LCTs
LCTs
Source: LCL Report D2
 2011. UK Power Networks. All rights reserved
Portable
Portable
Monitor
Monitor
RTUs
TSO
DSR owners/
aggregators
21
Recommendations
• System changes are likely to be incremental and evolutionary
rather than radical
• Increasing need for a fully integrated network topology/
asset/premises model, with LCT data linked into this
• Most high-volume metering/measurement data need only be
collected selectively when/where required
• Investment in additional network monitoring should be targeted at
networks close to capacity or with significant LCT adoptions
• Smart Meter data will help considerably with outage and voltage
excursion management, and assist forecasting and planning for
networks that are approaching the monitoring threshold
• Standardisation will increasingly be beneficial – the interfaces
between DSR participants are a good example.
Source: LCL Report D1
 2011. UK Power Networks. All rights reserved
22
 2011. UK Power Networks. All rights reserved
23