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ELECTRA IRP
Minjiang Chen, Victoria Catterson, Mazheruddin Syed,
Stephen McArthur, Graeme Burt
Dept. of Electronic and Electrical Engineering
University of Strathclyde24th November 2016
Supporting Control Room
Operators in Future Distributed
Power Networks
www.ElectraIRP.eu
The research leading to these results has
received funding from the European Union
Seventh Framework Programme (FP7/2007-
2013) under grant agreement n° 609687
2ELECTRA IRP on Smart Grids
Introduction
Future Distributed Power Network Architecture
Frequency Management in Web of Cells
Decision Support Design on Frequency Scenario
Cell Visualization Design Example
Conclusion and Future Work
Agenda
3ELECTRA IRP on Smart Grids
With the rapidly increasing of automation and intelligence, the
control room of the future may look significantly different to the
traditional concept of visualising the network diagram.
The automation and intelligent system will lead to a network more
self-managing and self-healing to reduce the burden on operators.
Decision Support Systems (DSS) is required in power system
control rooms to help operators avoid emergency situations and also
recover systems to the normal operation.
This research considers one particular view of future networks called
the Web of Cells (WoC) proposed by ELECTRA (European Liaison
on Electricity Committed Towards Long-term Research Activity).
Frequency scenario associated with DSS by adopting the WoC
architecture will be presented and visualization of cell will also be
introduced.
Introduction
4ELECTRA IRP on Smart Grids
One vision of the power system beyond2030 is the Web of Cell (WoC) concept.
The key feature of WoC is that each cellis a peer of other cells, with no overallsystem operator to exercise hierarchicalcontrol over cells.
Peer cells will collaborate to efficiently allocate resources, including
power and ancillary services, via tie lines between cells.
An operator will have certain responsibility within the cell such as
maintaining voltage and thermal constraints, responding to
frequency deviations.
Future Distributed Power
Network Architectures
Web of Cell Architecture Example
5ELECTRA IRP on Smart Grids
For frequency event, there are three operation services to manage the
frequency:
1. Frequency Containment Control:
The main responsibility of this service
is to stop the rise or fall of frequency
and to contain it to a pre-defined value.
2. Balance Restoration Control:
Once the frequency deviation has been
contained, it is to restore the frequency
back within the operation limits.
3. Balance Steering Control:
It is to replace the restoration reserves
with the most economically feasible resources.
There are two phases of frequency management within the WoC
architecture: a procurement phase and real-time operation phase.
Frequency Management
in Web of Cells
Frequency Management in the Web of Cells
6ELECTRA IRP on Smart Grids
Two frequency scenarios have been selected for decision support
design
− Single frequency event (focus)
− Two frequency events in close succession
Operators need situational awareness (visualisation of status) and
decision support (at key decision points)
− Each scenario has two decision points
• Planning phase has already produced FCC and BRC plans.
• Scenarios are on real-time operation phase.
Decision Support Design
7ELECTRA IRP on Smart Grids
Single Frequency Event
8ELECTRA IRP on Smart Grids
Single Frequency Event
Frequency Status: normal
DSS: No operator action
required
Situational AwarenessProblem Cell
9ELECTRA IRP on Smart Grids
Single Frequency Event
Frequency status: deviation
detected and it is in own cell,
disturbance magnitude: 7 MW
FCC reports: FCC operational
DSS: No operator action required
Situational Awareness
1. Magnitude of
disturbance
2. Location of the
disturbance
Data Request Problem Cell
10ELECTRA IRP on Smart Grids
Single Frequency Event
Problem Cell
FCC reports: Frequency contained
DSS: No operator action required
Situational Awareness
11ELECTRA IRP on Smart Grids
Single Frequency Event
Problem Cell
BRC reports: frequency will
restore in 1 minute
DSS: No operator action required
Situational Awareness
Reserves: 1MW from
local cell, 2MW from
Cell A, and 4MW from
Cell B
BRC Plan
12ELECTRA IRP on Smart Grids
• Decision point: procure new BRC reserves after a
frequency event
Single Frequency Event
Problem Cell
13ELECTRA IRP on Smart Grids
Single Frequency Event
Problem Cell
1. Time remaining until next planning
phase
2. Available reserves from own and
neighbouring cells (with speed of
respond, price and capacity)
3. Tie-line operation limit
Data Request
DSS
Options for procuring new BRC
Reserves:
1. 7MW from local cell
2. 5MW from local cell and 2MW from Cell A
3. 6MW from Cell B and 1MW from local cell
Recommended action: 7MW from local cell
Op
tion
s
14ELECTRA IRP on Smart Grids
• Decision point: BSC replacement of BRC deployed
reserves
Single Frequency Event
Problem Cell
15ELECTRA IRP on Smart Grids
Single Frequency Event
Problem Cell
1. Available reserves from own
and neighbouring cells (with
speed of respond, price and
capacity)
2. Tie-line operation limit
Data RequestOptions for replacing deployed BRC
Reserves:
1. 7MW from Cell A
2. 3MW from local cell and 4MW from Cell A
3. 6MW from Cell B and 1MW from local cell
Recommended action: 7MW from local Cell A
Op
tion
s
DSS
16ELECTRA IRP on Smart Grids
Single Frequency Event
Neighbour Cell/Far Away Cell
Frequency status: deviation
detected and it is in Cell A,
disturbance magnitude: 7 MW
FCC reports: FCC operational
DSS: No operator action required
Situational Awareness
1. Magnitude of
disturbance
2. Location of the
disturbance
Data Request
FCC Stage:
17ELECTRA IRP on Smart Grids
Single Frequency Event
BRC reports: Committed to provide
2MW to support problem cell to restore
frequency
DSS: No operator action required
BRC reports: No operational required
DSS: No operator action required
Situational Awareness(Neighbour Cell) Situational Awareness(Far away Cell)
BRC Stage:
18ELECTRA IRP on Smart Grids
Visualisation Example
19ELECTRA IRP on Smart Grids
Explored the features of WoC architecture for future distributed
power network.
Decision support system is required for prioritising information and
decision making, particularly during network events such as
frequency deviation.
Single frequency scenario demonstrates proposed functionality of
control room visualisation and decision support system.
Future work will implement the DSS within the lab with developed
visualisation.
Conclusion & Future Work