Logical Nodes and Data Models for Steam and Gas Turbines

IEC has just published a committee draft (CD) with a proposal for new models to be used in steam and gas turbines:

57/1383/CD - AIEC 61850-7-410 A1:
Amendment 1 to IEC 61850-7-410: Communication networks and systems for power utility automation – Part 7-410: Basic communication structure – Hydroelectric power plants – Communication for monitoring and control

Comments could be provided until 2013-11-01

The draft contains the details of the following new logical nodes (with some 120 data objects):

EBCF	Block control function. This LN will represent one physical device that coordinates the control of the thermal pressure of the steam generator and the electrical power regulation of turbine / generator system
EFCV	Fuel control valve. This LN will represent the physical device of fuel control valve related to the gas turbine in a thermal power plant.
EGTU	Gas turbine production unit. This LN represents the physical device of the GT and the generator combination in a thermal power plant. It is intended as an extended rating plate that allows settings of data. It also acts as a placeholder for the current operating conditions of the unit.
ESCV	Steam control valve. This LN will represent the physical device of inlet control valve of the steam turbine in a thermal power plant.
ESPD	Speed monitoring. This LN is derived from HSPD
ESTU	Steam turbine production unit. This LN represents the physical device of the ST and the generator combination in a thermal power plant. It is intended as an extended rating plate that allows settings of data. It also acts as a placeholder for the current operating conditions of the unit.
EUNT	Thermal unit operating mode. The present status of the production unit
FDBF	Dead-band filter. This LN represents a settable filter for dead-band
FMTX	Trip matrix. This LN represents a matrix for linking various trip functions to equipment that shall be tripped or controlled during a fault.
GUNT	Production unit operating mode. The present status of the production unit
SECW	Supervision of electrical conductivity in water. This logical node represents a system for monitoring of electrical conductivity in water.
TECW	Measurement of electrical conductivity in water. This logical node represents a generic device for measuring the conductivity in water.

The LN Group E stands for “Enthalpy”; Enthalpy is a measure of the total energy of a thermodynamic system.