Generator Control Circuits TRIZ Cases
- DFIG Wind Turbine SSR Protection via Oscillation Monitoring
A wind turbine controller detects sub-synchronous resonance oscillations in power output to trigger protective shutdowns.
- Grid-Side Converter Series Compensation for DFIG Fault Ride-Through
A grid-side converter switches to series compensation mode during faults.
- DFIG Winding Fault Detection via Self-Diagnostic Converter Signals
Controller uses converter to send diagnostic signals to rotor and stator, identifying winding faults without external hardware or manual inspection.
- Synchronous Speed Avoidance Controller for DFIG Thermal Management
The synchronous speed avoidance controller prevents rotor frequency near zero, reducing thermal stress on power semiconductors and avoiding oversized component costs.
- Power Generation Islanding Control via Dynamic Regulator Gain Adjustment
Dynamic gain adjustment maintains converter control during islanding, preventing overvoltage damage before safe shutdown.
- DFIG Converter Series Damping Circuit for Grid Fault Ride-Through
Series damping circuit with bypass switch attenuates rotor current spikes, enabling low voltage ride through capability for double fed induction generators.
- Predictive DC Link Overvoltage Mitigation in Wind Turbine Converters
A control system predicts future DC link voltage values using current feedback and rate of change calculations to enable proactive protection.
- Modular Multi-Level Converter for Asynchronous Machine Grid Integration
Segmented converter stages reduce thermal stress and costs by enabling variable-frequency operation without full-power rating requirements.