Frequency Reporting - ABB REL670 2.2 IEC Applications Manual

1MRK 506 369-UEN B
6.2.3.1
Line distance protection REL670 2.2 IEC
Application manual
Figure 37 shows an overview of the PMU functionality and operation. In this
figure, only one instance of PMUREPORT (PMUREPORT1) is shown. Note that
connection of different signals to the PMUREPORT, in this figure, is only an
example and the actual connections and reported signals on the IEEEC37.118/1344
can be defined by the user.
MU
U
SMAI
TRM
I
U
TRM
I
I/P SMMI
MIM
BIM
OR
PROTECTION
GPS /
IRIG-B
UP
PPS time data
UV
IEC140000146 V2 EN-US
Figure 37: Overview of reporting functionality (PMUREPORT)
The TRM modules are individually AC-calibrated in the factory. The calibration
data is stored in the prepared area of the TRM EEProm. The pre-processor block is
extended with calibration compensation and a new angle reference method based
on timestamps. The AI3P output of the preprocessor block is used to provide the
required information for each respective PMUREPORT phasor channel. More
information about preprocessor block is available in the section Signal matrix for
analog inputs SMAI.

Frequency reporting

By using patented algorithm the IED can track the power system frequency in quite
wide range from 9 Hz to 95 Hz. In order to do that, the three-phase voltage signal
shall be connected to the IED. Then IED can adapt its filtering algorithm in order
to properly measure phasors of all current and voltage signals connected to the
Wide area measurement system
U/I samples
PMUREPORT1
PHASOR1
PHASOR2
PHASOR32
ANALOG1
ANALOG2
ANALOG24
MEAS.
BINARY1
BINARY2
BINARY24
OP
FREQTRIG
DFDTTRIG
OC
MAGHIGHTRIG
MAGLOWTRIG
Section 6
8 TCP
IEEEC37.118 / 1344
NUM
messages
6 UDC
IEC140000146-1-en.vsd
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