IGMC's WAMS is based on high- frequency – sampled (20ms) synchro-phasors of voltage and current from phasor monitoring units (PMUs)
PMU receives analog inputs from PTs, and CTs, samples the values and calculates 20 ms Phasors. The resulting phasors are synchronized via GPS signal.
WAMS is used for:
- Modal Analysis of Inter-Area Osillations
- Frequency Monitoring
- Voltage Stability Assessment
- Power Corridors Monitoring
- Relative Angles between Areas.
- Post-Event Analysis
Upgrading security of grid operation by making use of online & offline studies, appointing stability indices, and providing situational awareness
analysis of the disturbances, dynamic Power swings, transient phenomena, abnormal phenomena affecting grid security, and analysis of incidents causes by making use of synchronized phasor data
Monitoring power quality including harmonic pollution rate of the current and voltage values, voltage unbalance, the national grid transmission lines level of loading.
Frequency investigation and studies in normal conditions & incidents, contribution of the power plants in frequency control in the event of major incidents in the national grid, calculating necessary parameters and providing regular reports
Analyzing the voltage violation status, angle stability, and inter-area modal analysis.
Investigating data status and WAMS center equipment availability, and providing regular reports
Developing WAMS hardware and software system to fulfill complete visibility of 230 and 400 kv transmission grid, and upgrading the present system
Pursuing the completion of the hybrid dynamic state estimation studies