Friday, August 14, 2015

IEC 61850-7-410 Extended Models for Conventional Power Plants

IEC TC 57 just published a FDIS defining extensions for conventional power plants and steam turbines:

IEC 61850-7-410 A1 (57/1607/FDIS): Amendment 1 to IEC 61850-7-410 Ed.2:
Communication networks and systems for power utility automation –
Part 7-410: Basic communication structure – Hydro-electric power plants – Communication for monitoring and control

Voting closes 2015-10-09.

The following new Logical Node classes are added to the Hydro Power model standard IEC 61850-7-410 Ed2:

LN Description
ASEQ Generic control action sequencer

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.
PTUR Used for detection of under resistance, e.g. due to stator or rotor earth-faults.
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.

DataObjects for settings of, e.g., the LN ESTU comprise:

TurTyp

Turbine type (steam, gas, oil)

SpdRtg

Turbine rated speed [s–1]

TurInert

Turbine moment of inertia J [kgm2]

TurTrsSpd

Maximum transient overspeed [s–1]

TurRwySpd

Runaway speed [s–1]

TurPwrRtg

Rated power in turbine mode [MW ]

FlwRtgTurb

Rated flow in turbine mode [kg/s]

HiPresMax

High pressure inlet maximum pressure [Pa]

IpMax

Intermediate pressure inlet maximum pressure [Pa]

LoPresMax

Low pressure inlet maximum pressure [Pa]

HiPresVlv

High pressure control valve rated oil pressure [Pa]

HpVlvClsTms

High pressure control valve rated closing time [s]

IpVlvPres

Intermediate pressure control valve rated oil pressure [Pa]

MidVlvClsTms

Intermediate pressure control valve rated closing time [s]

LpVlvPres

Low pressure control valve rated oil pressure [Pa]

LpVlvClsTms

Low pressure control valve rated closing time [s]

IcpVlvPres

Intercept valve rated oil pressure [Pa]

MainStmTmpRtg

Turbine rated main steam temperature

RhStmTmp

Re-heat steam temperature

IcpVlvTms

Intercept valve rated closing time [s]

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