Wideband oscillation visibility for modern power systems
Detect both low- and high-frequency oscillations in real time, including behaviours traditional monitoring cannot capture.
“Digital technology plays a big role in energy transition. And technology like from Reactive, is giving our system operators real time information that can help to make better decisions in real time.”
Director of Board, CEN, Chile
From local disturbances to system-wide interactions
Oscillations are not new — but modern grids are changing how they appear and how they spread.
With more inverter-based resources, power electronics, and large dynamic loads, oscillatory behaviour can develop faster, travel further across the network, and occur at frequencies that traditional monitoring may not fully capture.
Fast disturbances
Rapid load changes can excite oscillatory modes in low-inertia systems
Converter dynamics
Converter interactions introduce frequency-dependent system responses
Network interactions
Impedance conditions can lead to resonance and amplification
System-wide impact
Local events can influence wider system behaviour under stressed conditions
Local disturbances can drive system-wide oscillations, especially in low-inertia and weak-grid conditions.
Understand inter-area and local oscillation behaviour
See how oscillations propagate across the network
Detect emerging oscillation conditions in real time
Identify hidden patterns before they escalate
Pinpoint where oscillations originate and how they spread
Turn oscillation signals into
faster operational insight
Why it is needed
- Fast disturbances can excite oscillatory behaviour within cycles
- Some oscillations develop too quickly for snapshot-based monitoring
- Converter-driven oscillations can span from a few hertz to hundreds of hertz
- Continuous observation helps track how oscillations evolve and spread
What it enables
- Sub-cycle visibility of oscillatory behaviour in real system conditions
- Detection of oscillation modes from low frequencies up to kHz range
- Better correlation between disturbances, propagation, and system response
- Faster and more informed operational decisions during and after events
Continuous wideband oscillation detection
Real-time visibility in the control room
Rapid identification of source and propagation
Post-event analysis in minutes, not days
Detect hidden oscillations in real time
Reveal oscillatory behaviour invisible to conventional monitoring
Gain early warning of emerging oscillation conditions
Understand how oscillations evolve over time
Reduce risk of instability and outages
Detect issues before they escalate into system events
Monitor evolving conditions under changing grid dynamics
Support stable operation in complex system environments
Resolve issues faster and with confidence
Accelerate root cause analysis with wideband data
Correlate disturbances with system stability conditions
Reduce investigation time from days to minutes
- Monitor oscillations across the full frequency range
- Understand inter-area oscillation behaviour
- Support integration of inverter-based resources
- Improve response to system events and disturbances
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