Resonance Damping (RES) is an advanced power electronics solution designed to detect and suppress unwanted resonance frequencies caused by the interaction of capacitive and inductive components in electrical networks. Resonance issues are common in compensation panels, harmonic filters, and long cable installations, often leading to excessive voltages, overheating, equipment damage, and shutdowns.
The Inrush RES unit performs real-time grid impedance analysis to identify potential resonance modes and applies active damping currents to prevent resonance from developing. This significantly improves system stability and protects both compensation systems and the overall electrical infrastructure.
Resonance typically occurs when the inductance of the grid interacts with the capacitance of compensation banks or filter systems, forming LC circuits that amplify specific harmonic frequencies. The RES unit models this interaction and generates a dynamic virtual impedance to actively damp the resonant frequency.
The RES unit operates in parallel with the grid and uses an inverter-based structure to apply a controlled damping impedance at targeted harmonic frequencies. This allows the system to:
Inrush RES systems are designed in accordance with international standards for power quality, grid safety, and EMC requirements.
All Inrush systems undergo routine tests, type tests, FAT/SAT procedures, and safety verification to ensure long-term reliability and regulatory compliance.
RES solutions are widely used in compensation systems, harmonic filtering installations, and industrial facilities where resonance risk is high.
The RES system eliminates resonance-driven failures, capacitor explosions, harmonic amplification, and production downtime, ensuring greater stability and reliability for the entire electrical infrastructure.