FLEXIBLE DIRECT-CURRENT RECEIVING END ALTERNATING-CURRENT FAULT RIDE-THROUGH METHOD AND SYSTEM, AND COMPUTER DEVICE

WIPO Patent Application WO/2024/007488

A1

The present application relates to a flexible direct-current receiving end alternating-current fault ride-through method and system, a computer device, a storage medium, and a computer program product. The method comprises: when a receiving end alternating-current fault signal of a receiving end alternating-current system is received, controlling a sending end converter (102) to switch to a capacitor voltage average value control mode (S202); acquiring a capacitor voltage average value of the sending end converter (102) and a capacitor voltage reference value of the sending end converter (102) (S204); determining a target sending end direct-current voltage reference value of the sending end converter (102) according to the capacitor voltage average value and the capacitor voltage reference value (S206); and controlling output power on a direct-current side of the sending end converter (102) according to the target sending end direct-current voltage reference value until the capacitor voltage of the sending end converter (102) is in a stable state, and exiting the capacitor voltage average value control mode (S208).

FENG LEI (CN)
PENG MAOLAN (CN)
LIU HANG (CN)
HUANG DACHAO (CN)
ZHANG PEIRAN (CN)
LIAO FANGQUN (CN)
WU JIANYING (CN)

PCT/CN2022/127877

January 11, 2024

October 27, 2022

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MAINTENANCE & TEST CENTRE CSG EHV POWER TRANS COMPANY (CN)

H02J3/36; H02H7/26

CN115173457A	2022-10-11
CN114266134A	2022-04-01
CN114336716A	2022-04-12
CN114499251A	2022-05-13
CN108539796A	2018-09-14

ADVANCE CHINA IP LAW OFFICE (CN)

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