US Patent Application 18031627. POWER CONVERSION DEVICE simplified abstract

POWER CONVERSION DEVICE

Organization Name

Mitsubishi Electric Corporation

Inventor(s)

Sadayuki Inoue of Chiyoda-ku, Tokyo (JP)

POWER CONVERSION DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18031627 titled 'POWER CONVERSION DEVICE

Simplified Explanation

The patent application describes a control circuit for a distributed power source.

• The control circuit includes a virtual synchronous generator control circuit, a control parameter generating circuit, an inverter voltage control circuit, and a communication circuit.
• The virtual synchronous generator control circuit imparts a transient characteristic of a synchronous generator to the inverter.
• The control parameter generating circuit generates a control parameter for the virtual synchronous generator control circuit.
• The inverter voltage control circuit controls the inverter as a voltage source based on AC system voltage information.
• The communication circuit receives a power target value and necessary information from a management device.
• The control parameter generating circuit generates a speed adjustment rate and a damping coefficient based on the received power target value and information.
• The control circuit enables efficient control of the distributed power source.

Original Abstract Submitted

A control circuit includes a virtual synchronous generator control circuit to impart a transient characteristic of a synchronous generator to the inverter, a control parameter generating circuit to generate a control parameter for controlling the virtual synchronous generator control circuit, an inverter voltage control circuit to control the inverter as a voltage source, based on AC system voltage information input from the virtual synchronous generator control circuit, and a communication circuit to receive, from a management device that manages the distributed power source, a power target value of the distributed power source and information necessary for generating the control parameter. The control parameter generating circuit generates at least one of a speed adjustment rate and a damping coefficient to be used in the virtual synchronous generator control circuit, based on the power target value and the information necessary for generating the control parameter received by the communication circuit.