Restricted © Siemens AG 2015 siemens.com/EUW
Agility in energy Ahead of the challenge, ahead of the change
European Utility Week | Vienna, November 3-5, 2015
Go-ahead application for existing distribution grids combines availability and efficiency
© Siemens AG 2015
2015-09-30 Page 2 Bruno Opitsch / EM DG SDA
Distribution Automation
Scope of Application
Distribution automation
HV
MV
NOP
UHV transmission
UHV
HV
LV
MV
Generation and
transmission (HV)
Distribution (MV) • Distribution substation
Distribution and feeder
automation • Transformer station
• Pole top-mounted
Dual characteristics:
• Generation
• Consumption
Distribution (LV) Dual characteristics:
• Generation
• Consumption
© Siemens AG 2015
2015-09-30 Page 3 Bruno Opitsch / EM DG SDA
Existing Grids Configuration
How a rural area can look like
3
0 1 km
Normal Open Point
20-kV- Underground Cable
20-kV-Overhead Line
Secondary Substations
Industrial Supply
Feeder A
Feeder B
Feeder C
Primary Substations
Sourc
e: G
oogle
maps 1
5.1
0.2
015
© Siemens AG 2015
2015-09-30 Page 4 Bruno Opitsch / EM DG SDA
Intelligence replaces copper – Niederstetten, Deutschland
One application for multiple purpose
Customer environment: • Two electrical circuits with 84 distribution substations (19 customer stations)
separated by two normal open points
• Up to 18 km-long segments with a large share of overhead lines (45% cable grid)
• High renewable generation and industrial load in different MV-Feeder
Use cases: • Automated switching for isolation and service restoration
• Optimization of Volt/ VAR Condition
Implementation: • Control: 1x regional controller
• Automation: 9 intelligent distribution substations equipped with Remote Terminal Unit, Feeder Condition Monitoring, Power Quality Devices 2 Line voltage regulators (MV),
Features: Regional controller includes
• Self-healing for outage management
• Fault detection
• Fault isolation and Service Restoration
• Area voltage control
• Voltage measurement
• Control of line voltage regulator
© Siemens AG 2015
2015-09-30 Page 5 Bruno Opitsch / EM DG SDA
Operational efficiency
Optimization of Volt/Var conditions
Impact on high-voltage
Voltage band violation due to
decentralized power generation,
e.g. renewable energy
Voltage band violation due to distributed.
Infeed into low-voltage or medium-voltage
grid, e.g. energy.
Impact on medium-voltage
Overload of cable
Impact on low-voltage
Voltage band violation and overload of grid components
due to distributed infeed, e.g. renewable energy
Power quality problem caused by inverters
Distribution transformer overload
© Siemens AG 2015
2015-09-30 Page 6 Bruno Opitsch / EM DG SDA
Operational efficiency
Optimization of Volt/VAR conditions
Line length
with storage control with Volt/VAR control (generators, capacitor banks) with load control smart control – combination of control devices with transformer tap control
Voltage
VN
Vmax
Vmin
Consumers and distributed generation without control
Semi-distributed
Regional
controller A, V, VA
Var, W
Q
P, Q P, Q
© Siemens AG 2015
2015-09-30 Page 7 Bruno Opitsch / EM DG SDA
Fault and outage management –
Automated switching for isolation and service restoration
Less than
1 minute
15” 10” 5” 2” Time zero
Regional controller
Fault location Fault isolation Service restoration
IEC 60870-5-101
IEC 60870-5-104
Semi-distributed
© Siemens AG 2015
2015-09-30 Page 8 Bruno Opitsch / EM DG SDA
Fault and outage management –
Islanding to improve grid availability
Customer environment: • Long segments with a large share of overhead lines
• Feeders ending at the end of long, steep valleys
• High renewable generation and industrial load
Use cases: • Automated switching for isolation and service restoration
• Islanding and continue operation as Micro Grid
Implementation: • Control: 1x regional controller
• Automation: intelligent distribution substations; In-feed boxes at renewable connection Direct access to load and/or generation
Features: Micro grid controller includes
• Load Control including load shedding
• Distributed generator control also for renewables
• Local control panel (Human Machine Interface)
• Storage control
• Network synchronisation
© Siemens AG 2015
2015-09-30 Page 9 Bruno Opitsch / EM DG SDA
Application for existing distribution grids combines availability and efficiency
\ Conclusion
• High integration of DES
• No upgrade of existing grid
• Cost reduction on invest
• Increased availability
• Restoration within seconds
• Cost reduction per incident
• High customer satisfaction
• Intelligence replaces copper
Enables further use:
• Real-Time Data Analysis
• Generation / Load balancing
• Demand Response
• Strategic Grid Planning
Volt /VAR control Outage Management Digital Grid + =
© Siemens AG 2015
2015-09-30 Page 10 Bruno Opitsch / EM DG SDA
Bruno Opitsch
Senior Key Expert Distribution Automation
Siemens AG
Germany
Energy Management Digital Grid
Secondary Distribution Automation
Humboldtstrasse 59
90459 Nürnberg
Mobile: +49 (172) 23 59 328
E-mail: [email protected]
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