FLEXIBLE ACCESS SUBSTATION AND CONTROL METHOD THEREFOR

Title:

FLEXIBLE ACCESS SUBSTATION AND CONTROL METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2020/186936

Kind Code:

A1

Abstract:

Disclosed is a flexible access substation. The flexible access substation comprises N sets of frequency conversion access systems, wherein N is an integer greater than or equal to 1; each set of frequency conversion access system comprises a first AC-DC-AC converter, a first output circuit breaker, and a first power distribution system; the first power distribution system comprises one AC incoming line, an AC bus, and at least one outgoing line; an output side of the AC-DC-AC converter is connected to one end of the AC incoming line of the first power distribution system by means of the first output circuit breaker. Also disclosed is a control method for the flexible access substation. By means of the method, a set of converters can be simultaneously connected to vessels in a plurality of berths, and a docking vessel can access a shore power in a plug-and-play manner, so that investment costs of a shore power device are reduced, convenience of accessing the shore power is improved. In an interconnection mode, mutual support between AC buses can be implemented with high reliability.

Inventors:

XIE YEYUAN (CN)
WANG YU (CN)
SHENG XIAODONG (CN)
YANG XINGCHEN (CN)
YUAN QINGWEI (CN)

Application Number:

PCT/CN2020/074539

Publication Date:

September 24, 2020

Filing Date:

February 07, 2020

Export Citation:

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Assignee:

NR ELECTRIC CO LTD (CN)
NR ENGINEERING CO LTD (CN)

International Classes:

H02J3/00; H02J3/38

Foreign References:

CN109768551A	2019-05-17
CN209448429U	2019-09-27
CN105490264A	2016-04-13
CN105490264A	2016-04-13
CN107394831A	2017-11-24
CN106936130A	2017-07-07
US20090312885A1	2009-12-17

Other References: