Download P-3.8 Information System for the Electricity Transmission Network

DEMSEE 09, 18.9.2009. Belgrade
Information System for
Power Network Operation
Performance Monitoring
Jelena Car, Ninel Čukalevski, Goran
Jakupović, Igor Bundalo
Institut "Mihajlo Pupin", Belgrade, Serbia
www.institutepupin.com
Energy Supplied performances:
„
„
„
Voltage and frequency quality (sags, swells,
harmonics, flicker, etc.)
System reliability (SAIDI, SAIFI,…)
Quality of services
Performance monitoring system users:
Generic object
PERFIS architecture
Extraction, conversion and
transfer SCADA data
software (ECTL)
PQ metar data
conversion software
PQ-metar
ESI
SCADA API
Quality of
service
HPD
Reliability
Information
System (IRS)
Web-HPD
interfejs
Web-server
ESI Intranet
ESI Intranet clients
AERS IS
Power system quality and reliability data
(EN 50160) and their measuring intervals
(IEC 61000-4-30) as HPD data:
„
„
„
„
„
„
„
„
„
„
„
„
„
„
Measurement location/device (technology addresses)
Voltage and frequency values
The parameters of quality that are calculated in 3 s
The parameters of quality that are calculated in the 10 s
The parameters of quality that are calculated in 10 min
The parameters of quality that are calculated for a week
The parameters of quality that are calculated in the month
The parameters of quality that are calculated in the year
Long duration flicker indicators
Data required for the description of interruption
Data about the types of unavailability
Data about the causes of delays
Data about the types of outage
System Reliability Indices.
Data Sources:
SCADA system (2s resolution);
„ PQ-meters (millisecond samples);
„ Disturbance Recording Units (Disturbance
Data and/or Fault Data Recorders);
„ Microprocessor Protection Units and
Substation Control Systems.
„ State-of-the-art meters (AMR/AMI)
„
Historical database with ESI quality
performances data (HPD):
„
Collected and processed data relevant to the
performances of power system are stored;
„
Implemented in the RDBMS environment;
„
Enables the simple and standard (SQL) way to add
new applications.
HPD data are organized hierarchically,
where the hierarchical structure represents
the topology of Power System:
Administrator user interface:
Web-based user interface:
PERFIS: Hardware structure:
Web-based system-Technologyes used:
LAMP (Linux Apache MySQL PHP) platform:
„ Linux server platform;
„ Apache HTTP server;
„ MySQL RDBMS;
„ 5.2 PHP (Hypertext Pre pocesor) language;
„ Interface between web applications and data in the
MySQL RDBMS is implemented through built-in-mysqli
PHP module;
„ For the events and processing on the user side the
javascript is used;
„ A tool for modeling and administration Perf-IS database
is realized as a separate application (Microsoft .NET
Framework 1.1);
„ User’s client platform any recent web browser, for
example Internet (Internet Explorer 5.0, Mozilla Firefox
1.0 or later).
Conclusions:
„
„
„
Existing situation in the electricity sector of Serbia in
the field discussed is not at the level of advanced
world practices and standards.
Establishment of the Agency for Energy (AERS) with
its expanding reporting requirements, will further
sharpen the discussed situation.
Accordingly, the Institute has developed the state-ofthe-art information system (PERFIS) for continuous
tracking and monitoring of quality and reliability
parameters of energy supplied/received.
Start