Hitachi Relion 670 Series Applications Manual page 30

Section 2
Application
PTP or
GPS/IRIG-B
PMU
IEC140000114 V2 EN-US
Figure 2:
A Wide Area Monitoring System collects, stores, transmits and provides ways to analyze critical data
from key points across the power networks and over large geographical areas. The architecture of the
WAMS can provide a scalable solution, from small installations for data collection and basic visualization
(PDC) to larger systems with intelligent monitoring using wide area applications. The Wide Area
Monitoring applications are designed to detect abnormal system conditions and evaluate large area
disturbances in order to preserve system integrity and maintain acceptable power system performance.
The WAMS is configured in a way to acquire synchrophasor data from several PMUs. Based on the data
collected in the PDCs, WAMS is able to present the state of the grid to the power system operator, and to
provide monitoring of the power system based on real-time measurements and the results of on-line
applications. In addition, the data available from PDCs enables off-line analysis of the power system for
post-disturbance assessments. It is possible to communicate the PMU measurements and the results of
the advanced applications to SCADA/EMS systems as a way to improve the supervision of the system,
providing the operator with a clear indication how likely the system is to collapse, thus giving the
possibility to react in time.
Forcing of binary inputs and outputs is a convenient way to test wiring in substations as well as testing
configuration logic in the IEDs. Basically it means that all binary inputs and outputs on the IED I/O
modules (BOM, BIM, IOM & SOM) can be forced to arbitrary values.
IED supports COMTRADE1999 and COMTRADE2013 formats which can be selected in Parameter
Setting Tool (PST) of PCM600 or via LHMI.
Central Account Management is an authentication infrastructure that offers a secure solution for
enforcing access control to IEDs and other systems within a substation. This incorporates management
of user accounts, roles and certificates and the distribution of such, a procedure completely transparent
to the user.
The Flexible Product Naming allows the customer to use an IED-vendor independent IEC 61850 model
of the IED. This customer model will be exposed in all IEC 61850 communication, but all other aspects of
the IED will remain unchanged (e.g., names on the local HMI and names in the tools). This offers
significant flexibility to adapt the IED to the customers' system and standard solution.
24
Visualization
(Applications)
Phasor Data Concentrator
PDC
Gateway to other Utilities
TCP/IP communication network
PMU protocol IEEE C37.118
Router Router
PTP or PTP or
GPS/IRIG-B GPS/IRIG-B
PMU PMU
Substation 1 Substation 2
Wide Area Monitoring System architecture — overview
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Interface to
SCADA / EMS
Data Storage and Event
Driven Archiving
Router
PTP or PTP or
GPS/IRIG-B GPS/IRIG-B
PMU PMU
Substation 3
IEC140000114-2-en.vsd
1MRK511407-UUS Rev. N
Router
PTP or
GPS/IRIG-B
PMU
Substation N
Phasor measurement unit RES670
Application manual