POWER SUPPLY SYSTEM, COUPLING DEVICE, POWER SUPPLY UNIT, AND CONTROL METHOD

• Main Authors: MORIYAMA, Yuichi, GOTO, Ryo, MIYAZAKI, Shinya, UJII, Junichi, NISHIGAI, Takanobu
• Format: Patent
• Language: English; French; German
• Published: 21.12.2022
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

A power supply system includes a coupling device including a power conversion device, and one or more power supply units. Each of the one or more power supply units includes a distributed power supply, a first electrical power interface for outputting direct current power to the power conversion device, an individual converter that converts the direct current power to alternating current power, and a second electrical power interface for outputting the alternating current power output from the individual converter. The power conversion device includes a coupling side converter that converts the direct current power output from the one or more power supply units to alternating current power, and an electrical power interface for outputting the alternating current power output from the coupling side converter. The power supply system includes a controller for controlling at least one of a corresponding one of the one or more power supply units or the power conversion device based on communication information obtained by communication between the corresponding one of the one or more power supply units or the power conversion device.