All-around efficiency
Optimized solutions for wind farm automation
A service-friendly system concept is indispensable for the efficient operation of wind farms. Drawing on
our experience from major onshore and offshore wind power projects over the past few years, we have
developed a range of applications for wind farms with optimally matched components. For one, we use
generic solutions for the automation of transformer substations and grid connections. Secondly, we offer
solutions for condition monitoring, connections to the turbine control system, onshore and offshore
applications, infeed controllers and HVDC controller integration into SCADA systems. We supply you with
a complete package of secondary applications for wind farm solutions that offer outstanding reliability,
service-friendliness and high-level availability from the moment the wind farm is commissioned – for
everything from the turbine to the energy grid.
For more information, please contact our
Customer Support Center
Phone: +49 180 524 84 37
Fax:
+49 180 524 24 71
(Charges depending on provider)
E-mail: support.ic@siemens.com
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www.siemens.com/eneas-wind
Siemens AG
Infrastructure & Cities Sector
Smart Grid Division
Energy Automation
Humboldtstr. 59
90459 Nuremberg, Germany
Efficient application – reliable operation
Automation solutions and grid connections for wind farms
Answers for infrastructure and cities.
Trouble-free connections
to the grid
Wind farm energy control –
from the turbine to the grid
Power quality should not only be ensured at the
transfer point of the energy from the wind farm to
the power grid. Network and wind farm operator
demands in terms of infeed capacity and cos phi
must also be matched to the wind farm’s potential.
The infeed controller is the information hub between
the wind farm and the grid. Our solution offers the
possibility of controlling the turbines and using the
existing capacitor banks for compensation – always
in coordination with power quality information at the
interconnection point. With individual wind farms or
small systems, the infeed controller can be integrated into the energy control system. It can also be
installed separately for infeed or interconnection
points that are fed in from several wind farms.
Whatever your wind farm grid connection requirements
call for, we offer a highly flexible control system for energy
automation that utilizes proven protection and telecontrol
technology. Thereby, all of the information is gathered in
the wind farm energy control system.
EEG management options
Power reduction in accordance with the German
Renewable Energies Act (EEG) constitutes a special
form of wind farm control. It limits wind farms to
0, 30 or 60 percent of their maximum power generation capacity as specified by the transmission control
operator. The power that is not fed in is calculated
and reimbursed. We also offer an EEG management
solution that handles the planning, implementation
and documentation of EEG measures.
The SCADA system also enables connections to other external control centers, for example, to the grid operator or
to a central control station of the system operator. It thereby
acts as a control hub for all information of the various partners. In this way, it provides optimal support for the operation, fault analysis and fault correction as well as for wind
farm-related maintenance tasks.
• Wind farm and platform information
Features
• Scalable system – from single workstation to multi-server,
multi-client system on small onshore wind farms as well
as large offshore platforms
• Wind SCADA information
• User and rights management for the various user groups
• Remote service connection
• More than 200 communications protocols for the integration of all available data and components
• Protection device data
• Grid connection and power quality
As such, it offers access to all essential alarms, events,
trends and archive data within a homogeneous environment. Straightforward displays allow users to visualize
and monitor the operation of their wind farm. The system
logs every operating status, enabling subsequent review
of proper operation and documentation. As such, every
operating status can be analyzed and optimized.
– e.g., IEC 61850, IEC 61400 protocols, dnp3,
modbus, ICCP (TASE2)
• Integration of protection and telecontrol technology,
also wind farm and platform data into one system
• Fully developed security and system update concept
• Service interface for easy yet secure remote services
SCADA system
Wind SCADA
The most important controller is the Wind Farm Management SCADA or Wind SCADA. As a special, high-performance system, it gathers all information from the wind
turbines. Depending on the turbine type, it uses more
than 3,000 data points for precise turbine control and
monitoring. It then processes the collected data for turbine fault diagnosis and forwards them to the manufacturer’s service center. It also features a communications
interface to the wind farm energy control system. Here,
data such as controlling power range, availability, status
and the most critical alarms are easily and reliably forwarded, as well as setpoint entries received and processed for turbine control.
Connections with Wind SCADA systems from Siemens
wps SCADA, Multi Level Wind SCADA (WinCC OA) and
from other turbine manufacturers have already been
implemented in existing projects.
Platform/wind farm information
In medium-sized and large-scale wind farms, a number
of additional signals are provided apart from the Wind
SCADA signals – for example, from parts that are connected to the central control center system. As a result,
you no longer need to connect from one system to the
next in order to access data from various sources and to
evalu-ate them simultaneously. Instead, you are immediately provided with a comprehensive overview. Letting
you benefit from fast system diagnostics and convenient
troubleshooting as well as prompt repair.
Remote operation and service center
– everything under control
Today’s wind farms are already capable of matching the
power generation performance of conventional power
plants. However, they are not operated in shifts around
the clock by control center staff. As is typical of decentralized power generation, the systems generally operate
independently, right down to the individual onshore turbine. As a result, there is an increased focus on establishing remote operation centers – a trend that control
center technology from Siemens Energy Automation
also supports.
Thanks to the experience we’ve gathered from more
than 1,600 control centers worldwide, we are well
aware of remote operation and service center requirements for wind farms, and are able to assist customers
with the implementation. From Web access to controllers on small systems to control centers capable of monitoring and operating several hundred of wind farms and
substations via telecontrol links, solutions can be scaled
to any size.
The Siemens offshore service center for wind farms also
utilizes this efficient base system. The applied analysis
methods allow for an accurate diagnosis of the system
status and provide optimal maintenance and repair support. Always with the aim of identifying threatening
faults early and preventing associated expensive
downtimes.
Data concentrator
& communication
Connection to:
• Grid operator
• Platform /
wind farm owner
• Service and
support provider
Power quality
IEC 61850
Switch
MV
Switch
HV
SIPROTEC (station automation)
Grid connection
SIPROTEC (turbines)
Wind SCADA
Energy control system
Wind farm /
platform signals
Wind SCADA / Wind farm platform
Remote access / service
Remote access
Benefits at a glance
• A joint platform for protection systems, substation automation and distribution systems for onshore and offshore
wind farms
• Reduced system complexity without functionality and
cyber security reduction
• Lower testing and engineering costs thanks to matching
engineering tools
• Efficient system design for fast fault localization
• Effective maintenance through optimal data utilization
• Optimized system architecture and functionalities to
decrease downtime and enhance reliability
• Energy and platform automation engineering from
Siemens with a strong project experience
References
A few examples of projects where our solutions are used:
• Wind farms on over 20 platforms in the North and
Baltic Seas
• UK Round II projects
• Remote wind farm monitoring (Portugal, Spain)
• Control center system for OWP local operation
• Control center system for HVDC transmission platform
• Control center system at the Siemens Customer Support
Center, Offshore