PROTECTION APPARATUS, PROTECTION CONTROL METHOD AND MODULARIZED MULTI-LEVEL CONVERTER

Title:

PROTECTION APPARATUS, PROTECTION CONTROL METHOD AND MODULARIZED MULTI-LEVEL CONVERTER

Document Type and Number:

WIPO Patent Application WO/2019/165750

Kind Code:

A1

Abstract:

A protection apparatus, a protection control method and a modularized multi-level converter. The protection apparatus comprises a plurality of protection devices (11) and a controller (12). Each protection device (11) comprises N capacitors (101), N direct-current short-circuit control units (102), and N+1 fast-acting fuses (103). The fast-acting fuses (103) are connected between a direct-current bus (104, 105) and a direct-current bus bar (204, 205, 206). The controller (12) is separately connected to the direct-current short-circuit control units (102) in each protection device (11), and is used for controlling the direct-current short-circuit control units (102) to be conducted.

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Inventors:

FU SONGGE (CN)

Application Number:

PCT/CN2018/096319

Publication Date:

September 06, 2019

Filing Date:

July 19, 2018

Export Citation:

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Assignee:

BEIJING ETECHWIN ELECTRIC CO LTD (CN)

International Classes:

H02H7/122

Foreign References:

CN106160545A	2016-11-23
CN104410256A	2015-03-11
CN106712062A	2017-05-24
US20120068756A1	2012-03-22

Attorney, Agent or Firm:

BEIJING EAST IP LTD. (CN)

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