Excess voltage protection for inverter with input EMC filter

• Main Authors: Wolf, Dr.-Ing. Henrik, Bremicker, Sven, Westphal, Torben, Jeppe, Andreas, Greizer, Frank, Häring, Adrian
• Format: Patent
• Language: English; French; German
• Published: 04.04.2018
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The apparatus has a direct current voltage input stage (6) including two current-carrying lines (22, 24) and an electromagnetic compatibility filter (7) comprising suppression capacitors (13, 14) and suppression inductors (12), where the current-carrying lines are provided for dissipating overvolatges with respect to earth. Overvoltage arresters (16, 17) of a direct current source (15) are arranged in a housing of an alternating current converter (5) behind the compatibility filter on the current-carrying lines.