1. Paper 2.59
COMPREHENSIVE DEVELOPMENT OF POWER QUALITY MANAGEMENT AND EVALUATION OF VOLTAGE DIP PROBLEMS
A. Mäkinen, P. Järventausta, P. Verho,
Tampere University of Technology, Finland
A. Rinta-Opas – Koillis-Satakunnan Sähkö Oy, Finland

2. Increasing need for PQ management
Growing interest of Power Quality
short interruptions and voltage dips
Open market, but monopoly network business
quality requirement/responsibility (EN50160)
information needed by regulator
New methods for PQ management are needed
PQ-meters (e.g. Integrated with kWh meter) and integrated information systems provide basis for advanced and cost effective PQ management

3. Advanced PQ-management solution
PQ Analysis and reporting
Web-based applications
PQ-meter
Customer service support
PQ-meter
Distribution Management System
PQ- Data-base
Network Information System
PQ-meter
Network planning support
Portable PQ-meter
PQ-meter
PQ-meter
Network Database

4. Analyses of voltage dips
Dip registrations at primary substations
Tests with short circuits
Dip analysis as part of network calculations
comparison between registrations and calculations
tool for network development studies
Measures for dip reduction
Cumulative distribution of voltage dips and short interruptions in a case study

5. Web –based viewing of outage data

6. Conclusions PQ information sources PQ-applications
distribution automation
PQ-meters (on-line, portable)
Outage statistics (provided by DMS)
PQ-applications
analysis & reporting
network planning support (e.g. dip reduction)
customer service support
statistics for regulator
Web-based applications