Graham Ault, our Development Director shared presented the Planning for Operational Solutions presentation at CIRED 2015, in Lyon France.

1. Lyon (France), 15-18 June 2015
Planning for Smart
Operational Solutions
Active Network Management
Graham Ault – UK – RT3 Middle earth : Bringing operation in planning, introducing
planning into operation

2. Lyon (France), 15-18 June 2015
Overview
 Active Network Management (ANM)
 Planning Methods and Tools for ANM
 Emerging Topics for ANM Planning
Graham Ault – UK – RT3 Middle earth: Bringing operation in planning, introducing
planning into operation
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3. Lyon (France), 15-18 June 2015
To rest of network….
12 MVA
Bus 1 Bus 2
FG0 - 15 MVA
NFG
3 - 12 MVA
12 MVA
v, i
v, i
ANM Controller
v, i
Real-time Export
SCADA/EMS/DMS
0 - ? MVA
Storage
Substation or Control Room
3
Active Network Management: Concept
3Graham Ault – UK – RT3 Middle earth: Bringing operation in planning, introducing
planning into operation

4. Lyon (France), 15-18 June 2015ANM Power Flow Operation Example
0
5000
10000
15000
20000
25000
30000
35000
40000
18:37:00 18:38:00 18:39:00 18:40:00 18:41:00 18:42:00 18:43:00
Power(kW)
March Grid Transformer DG1 Power DG2 Power DG3 Power
Firm Generation Power DG1 Setpoint DG2 Setpoint DG3 Setpoint
Global Trip Seq Trip Reset Trim
Trim Less Reset Less
TrimBreach 2. Thermal limit
reached at MP
1. Firm DG ‘forced’
increase to create
thermal breach
3. DG set-points
calculated and
issued on pro-rata
basis
4. DG ramp-down in
compliance with
set-point
instructions
5. Power flow at
network constraint
below threshold
7. Driving
force on
constraint
removed
8. DG full
release starts
6. Adjustments
possible to fully use
thermal capacity
4Graham Ault – UK – RT3 Middle earth: Bringing operation in planning, introducing
planning into operation

5. Lyon (France), 15-18 June 2015
Control Products
Consultancy, Analysis,
Tools and Training
Systems Integration
and Support
Active Network
Management
products
• Strategic
Consultancy
• Power systems
analysis
• ANM system design
• Capacity analysis
tools
• ANM planning and
operational training
• Services to
support the
deployment of
Active Network
Management
• Ongoing support
and maintenance
of operational
systems
Project Lifecycle
Planning – Control – Support (SGS Approach)
5Graham Ault – UK – RT3 Middle earth: Bringing operation in planning, introducing
planning into operation

6. Lyon (France), 15-18 June 2015
ANM Challenge for Planning
 Accurate representation of ANM control
scheme
 Valid DER and demand data sets
 Model configuration, validation and runtime
 Results interpretation
 Commercial sensitivity on input and output
data
Graham Ault – UK – RT3 Middle earth: Bringing operation in planning, introducing
planning into operation
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7. Lyon (France), 15-18 June 2015
ANM Curtailment Assessment Background
 Curtailment assessments required to inform network
planners and DG developers of impact of ANM
connection solution
 Aim is to simulate ANM operational behaviour across
representative study time-frames
 Outputs of study provide an indication of frequency and
severity of ANM actions on generators
 Results provide an estimation of MWh curtailment
across study period
7Graham Ault – UK – RT3 Middle earth: Bringing operation in planning, introducing
planning into operation

8. Lyon (France), 15-18 June 2015
Approaches to ANM curtailment assessment
 Spreadsheet-based analysis
• Allows for timely approximation of curtailment
• Straight-forward error checking and validation
• Well suited to cases of radial, thermal constraints
 Load flow in-the-loop analysis
• Allows for full AC load-flow simulation
• Impact of reactive power flows
• Voltage analysis
• Provides a more representative estimation of
constraints
• Scripting used to automate power system simulation
• Can be complex to create scripts and validate results
8Graham Ault – UK – RT3 Middle earth: Bringing operation in planning, introducing
planning into operation

9. Lyon (France), 15-18 June 2015
SGS Connection Analysis Tool: Input Data
Generator
• Time-series export profiles for all variable generators
Loads
• Time-series demand profiles for all variable loads
Constraints
• Specification of limits to be observed
• Circuit limits (magnitude)
• Nodal voltages (magnitude)
• Transformer Reverse Power Flow (Magnitude and
Direction)
• Limits may be dynamic
• Seasonal ratings
• Dynamic line ratings
9Graham Ault – UK – RT3 Middle earth: Bringing operation in planning, introducing
planning into operation

10. Lyon (France), 15-18 June 2015
Case Study
 Feasibility Assessment study
 Real case study – anonymised
 Half-hourly load and generation
data
• From 01/01/2011 to 30/06/2013
 43776 instances of data entry
• 2.5 years
Conditions
• Max load: 43 MW
• DG installed capacity: 168 MW
Network size:
• 38 Nodes
• 9 Generators
• 7 Loads
• 43 Branches
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11. Lyon (France), 15-18 June 2015
SGS Connection Analysis Tool User Interface
11Graham Ault – UK – RT3 Middle earth: Bringing operation in planning, introducing
planning into operation

12. Lyon (France), 15-18 June 2015
ANM Curtailment Results
Controllable
Device
Uncurtailed Generation Export Curtailed Generation Export
MWh Capacity Factor MWh Capacity Factor
GEN A 344998 32.84% 344998 32.84%
GEN B 310405 22.69% 310405 22.69%
GEN C 787968 94.74% 785720 94.47%
GEN D 64687 32.84% 57230 29.05%
GEN E 35937 29.85% 29486 24.49%
GEN F 10781 24.63% 9209 21.04%
12Graham Ault – UK – RT3 Middle earth: Bringing operation in planning, introducing
planning into operation

13. Lyon (France), 15-18 June 2015
ANM Operation and Control Implications for
Planning
 Response of stakeholders at connection planning
stage important for planning process and control
solution
 Network Planners consider wider planning
implications of ANM control scheme
 Operational experience of generators in ANM control
schemes fed back to validate and tune planning
models and tools
Graham Ault – UK – RT3 Middle earth: Bringing operation in planning, introducing
planning into operation
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14. Lyon (France), 15-18 June 2015
Emerging Topics for ANM Planning
 Investment Planning with alternative solutions and
commercial models
 Triggers for network reinforcement once smart solution
headroom expended
 System operational planning with smart solutions (e.g.
planned transfers, net flows and contingency analysis)
 Informing investment and operational planning from
operation and control (‘feedback loop’)
Graham Ault – UK – RT3 Middle earth: Bringing operation in planning, introducing
planning into operation
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15. Lyon (France), 15-18 June 2015
Planning for Smart
Operational Solutions
Graham Ault: gault@smartergridsolutions.com
Graham Ault – UK – RT3 Middle earth: Bringing operation in planning, introducing
planning into operation
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