Ultracapacitor Grid Stabilizer (UGS)
The Ultracapacitor Grid Stabilizer combines the STATCOM capabilities of an IGBT-power converter with active power support based on high-power Maxwell ultracapacitors. The UGS can provide voltage and frequency stabilization in transmission or distribution networks with high renewable penetration.
Respecting all relevant grid code requirements the Ultracapacitor Grid Stabilizer allows the operator to provide a number of grid support services and harvest multiple value streams:
| RoCoF-Support | Active power injection within 20ms |
| Fast Frequency Response (FFR) | Providing FFR to stabilize system frequency |
| Dynamic Reactive Response (DRR) | Reactive current response to compensate voltage dips |
| Harmonic filtering | Filtering of harmonics based on ultra-fast IGBT-switching |