wilamowski-b-m-irwin-j-d-industrial-communication-systems-2011

IEC 61850 for Distributed Energy Resources 59-9
Table 59.3
LN-Class
WTUR
WROT
WTRM
WGEN1
WMET
Logical Nodes for Wind Power Plants (Examples)
Description
General information on a wind power plant
Information on the wind turbine rotor:
Status information: turbine status, operation time,
Control information: operation mode, setpoints,
Information on the transmission: operation mode, the
status of the generator cooling system, the generator speed
Information on the generator: generator speed, voltages,
currents, power factor, temperatures
Wind power plant meteorological information: wind speed,
ambient temperature, humidity
Table 59.4
LN-Class
HDAM
HGTE
HUNT
Logical Nodes for Hydropower Plants (Examples)
Description
Information on a hydropower reservoir: type of construction, calculated
volumetric content.
Information on a dam gate:
Status information: upper/lower end position reached, gate is blocked
Measured value: calculated water flow through the gate (m 3 /s)
Control information: gate position setpoint, change gate position
Information on the hydropower unit (turbine and generator):
Status information: Operating mode
Settings: Rated maximum water flow, temporary limitation of power
output
59.6.3 Other Specific Types of Distributed Energy Resources
The IEC 61850-420 standard includes LNs for the following types of distributed energy resources
[Sta3]:
• Photovoltaic systems: An example for a PV system is already described above.
• Diesel engines (reciprocating engine): The most important LN for a diesel engine is the
Reciprocating engine (DCIP) LN. It includes information such as the engine status, settings
for the minimum and the maximum speed, the actual engine speed, and the actual engine
torque. Examples for controls are engine on/off, crank relay driver on/off, and diagnostic
mode enable.
• Fuel cells: The most important LN for fuel cells is the Fuel Cell Controller (DFCL) LN for the
fuel cell controller. It includes status information (count of system starts, time until next maintenance,
etc.), settings (maximum fuel consumption rate, system output voltage rating, etc.), controls
(open close fuel valve, emergency stop), and measured values (system run energy, input fuel
consumption, water level remaining, etc.).
• Combined heat and power system (CHP): Specific LNs are defined for CHP-system-controllers
(DCHC), thermal storages (DCTS) and CHP boilers (DCHB).
© 2011 by Taylor and Francis Group, LLC