Power converter for photovoltaic energy sources

• Main Authors: XU XIAO, SCOBIE ANDREW JOHN, JAIN, LALIT, K, BOLLAGA KARINE, PERCIASZ, PAUL, W
• Format: Patent
• Language: Chinese; English
• Published: 29.11.2022
• 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; BASIC ELECTRIC ELEMENTS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

A power converter for a photovoltaic energy source, comprising: an inverter for receiving a dynamically changing DC signal generated by the photovoltaic energy source and generating a corresponding dynamically changing AC signal having a frequency substantially equal to a mains supply frequency; and an electromagnetic device comprising a magnetic core and a plurality of windings surrounding the magnetic core. The windings comprise: one or more input windings for receiving the dynamically changing AC signal as an AC input; one or more output windings for providing an AC output signal; and a control winding configured to control an electromagnetic coupling between the input winding and the output winding; and a control component configured to dynamically control a current flowing through the control winding such that a corresponding electrical characteristic of the AC output signal is relatively constant (despite a dynamically changing AC signal) and includes a fundamental frequency equal to the mains supply fr