OUTPUT CONTROL SYSTEM AND METHOD FOR INVERTER FOR HARMONIC SUPPRESSION

Title:

OUTPUT CONTROL SYSTEM AND METHOD FOR INVERTER FOR HARMONIC SUPPRESSION

Document Type and Number:

WIPO Patent Application WO/2024/080679

Kind Code:

A1

Abstract:

An objective of the present invention is to provide an output control system and method for an inverter for harmonic suppression, which suppresses harmonic vibration transmitted from a propeller, by analyzing, in real time, vibration generated in the propeller, which is a mechanical system, into harmonic components, and generating reverse harmonic components that cancel out the harmonic components in an inverter control system. In order to achieve the objective, the output control system for an inverter for harmonic suppression, according to the present invention controls the output of the inverter in an electrical propulsion system and comprises: an electric motor connected to a propeller; an inverter that applies a driving voltage to the electric motor; a current controller that generates a first current on the basis of a current value measured by the electric motor; a harmonic injector that converts a torque measured from the propeller, into a first harmonic component, and generates a second current including a second harmonic component on the basis of the first harmonic component; and a voltage controller that applies, to the inverter, a control voltage generated on the basis of the first current and the second current, wherein the first harmonic component and the second harmonic component cancel each other out.

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Inventors:

SUNG SOYOUNG (KR)
PARK JUNGHYUNG (KR)
SHIM HYUNGWON (KR)
KIM YUNHO (KR)

Application Number:

PCT/KR2023/015466

Publication Date:

April 18, 2024

Filing Date:

October 06, 2023

Export Citation:

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Assignee:

KOREA INST OCEAN SCI & TECH (KR)

International Classes:

H02M1/12; B63H21/17; B63H21/21; H02P27/06; H02P29/50

Attorney, Agent or Firm:

DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)

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