Flexible Wechselstromverbindungsvorrichtung und Steuerungsverfahren

Details

Veröffentlichungs-Nr.

EP4769867

Anmeldetag

18. November 2024

Veröffentlichung

30. Mai 2025

Rechtsraum

EP

IPC

H02J3/36, H02J3/46, H02M1/32

Abstract

A flexible alternating-current (AC) interconnection apparatus and a control method therefor are disclosed. The flexible AC interconnection apparatus comprises a three-phase series-connected converter valve connecting two AC systems. The series-connected converter valve comprises N rectifier-inverter modules, M current-conducting blocking modules and K reactive modules, wherein each of the rectifier-inverter modules comprises a rectifier full-bridge circuit and an inverter full-bridge circuit which are connected in parallel on a direct-current (DC) side; an AC port of the inverter full-bridge circuit of each of the rectifier-inverter modules is successively cascaded with AC ports of the inverter full-bridge circuits of other rectifier-inverter modules; an AC port of the rectifier full-bridge circuit of each of the rectifier-inverter modules is connected to respectivesecondary-side windings of a multi-winding transformer or a power supply capable of supplying energy; each of the current-conducting blocking modules no less than comprises a diode full-bridge rectifier circuit and a blocking capacitor connected in parallel with a DC terminal of the diode full-bridge rectifier circuit; and each of the current-conducting blocking modules further comprises a current-conducting loop. The flexible AC interconnection apparatus has the following advantages of flexible operation mode, high efficiency, and high reliability.

Anmelder

Firmen

NR ELECTRIC CO., LTD.
NR Engineering Co., Ltd.

Land

🇨🇳 China

Fachgebiete