SYSTEM OG FREMGANGSMÅDE TIL STRØMKONVERTERING

• Main Author: Raju, Ravisekhar Nadimpalli
• Format: Patent
• Language: Danish
• Published: 28.08.2023
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

A multilevel inverter (22) is provided. The multilevel inverter (22) includes a plurality of bridges (60), each bridge configured to receive a respective portion of an input DC power (32) and convert the respective portion to a respective converted AC power (44). The multilevel inverter (22) also includes at least one bridge controller (42) for operating at least one of the plurality of bridges (60) in a square waveform mode. The multilevel inverter (22) further includes a plurality of transformers (48), each transformer coupled to a respective bridge (60) and configured to increase a voltage level of the respective portion of converted AC power (44). The plurality of transformers (48) further includes secondary windings (70) coupled in series with the other secondary windings (70) to combine the respective increased voltage level portions of the converted AC power (44). The multilevel inverter (22) also includes a grid converter (52) configured to provide output power (34) for a power grid (36).