Leistungsumwandlungsvorrichtung, Verfahren zur Bestimmung des Verbindungszustands einer Leistungsumwandlungsvorrichtung, Komponentensteuerung und System

Details

Veröffentlichungs-Nr.

EP4769861

Anmeldetag

22. Dezember 2025

Veröffentlichung

1. Juli 2026

Rechtsraum

EP

IPC

H02J1/102, H02J4/25

Abstract

A power conversion device, a method for determining a connection state of a power conversion device, a component controller, and a system are provided. The power conversion device includes: a DC input terminal and a control module. The DC input terminal is configured to be connected to a photovoltaic component through a component controller. The control module is configured to: transmit a voltage regulation instruction to the component controller; monitor an input terminal voltage of the DC input terminal connected to the component controller, where the voltage regulation instruction is used for indicating the component controller to regulate an output voltage based on the predetermined voltage change strategy; compare a measured voltage change of the input terminal voltage with a predetermined voltage change strategy; and determine a connection state between the DC input terminal and the component controller based on a comparison result. Therefore, it can be determined conveniently whether the DC side of the power conversion device and the component controller are open circuited.

Anmelder

Firma

Sungrow (Shanghai) Co., Ltd.

Land

🇨🇳 China

Fachgebiete