Hybrid Three Level Npc Thyristor Converter With Chain Link Strings As

Hybrid Three Level Npc Thyristor Converter With Chain Link Strings As Inner Ac Switches

Abstract: A method for power conversion includes coupling a first string (302) to a second string (304) via a first connecting node (310) and a second connecting node (312) to form at least one leg (301 303 305) of a power converter (104 300). The first string (302) is operatively coupled across a first bus (306) and a second bus (308) and comprises a first branch (314) and a second branch (316) coupled via a third connecting node (318). The first branch (314) and the second branch (316) include a plurality of controllable semiconductor switches (330). Furthermore the second string (304) comprises a first chain link (320) and a second chain link (322) coupled via an alternating current phase bus (326) and includes a plurality of switching units (334). The first chain link (320) and/or the second chain link (322) are controlled to generate a negative voltage across at least one of the plurality of controllable semiconductor switches (330) during a switch turn off process.

Patent Information

Application #

Filing Date

14 October 2016

Publication Number

49/2016

Publication Type

INA

Invention Field

ELECTRICAL

Status

Email

Parent Application

Applicants

GENERAL ELECTRIC COMPANY

1 River Road Schenectady NY 12345

Inventors

1. ZHANG Di

1 Research Circle Niskayuna NY 12309

2. GARCES Luis Jose

1 Research Circle Niskayuna NY 12309

3. ROCKHILL Andrew Allen

1 Research Circle Niskayuna NY 12309

Specification

SOFT COPY ATTACHED IN PDF

Documents

Application Documents

#	Name	Date
1	201647035127.pdf	2016-10-18
1	PROOF OF RIGHT [14-10-2016(online)].pdf	2016-10-14
2	201647035127 Abstract 14-10-2016.pdf	2016-10-14
2	Power of Attorney [14-10-2016(online)].pdf	2016-10-14
3	201647035127 Claims 14-10-2016.pdf	2016-10-14
3	Form 5 [14-10-2016(online)].pdf	2016-10-14
4	201647035127 Form-2 14-10-2016.pdf	2016-10-14
4	Form 3 [14-10-2016(online)].pdf	2016-10-14
5	Drawing [14-10-2016(online)].pdf	2016-10-14
5	Description(Complete) [14-10-2016(online)].pdf	2016-10-14
6	Description(Complete) [14-10-2016(online)].pdf	2016-10-14
6	Drawing [14-10-2016(online)].pdf	2016-10-14
7	201647035127 Form-2 14-10-2016.pdf	2016-10-14
7	Form 3 [14-10-2016(online)].pdf	2016-10-14
8	201647035127 Claims 14-10-2016.pdf	2016-10-14
8	Form 5 [14-10-2016(online)].pdf	2016-10-14
9	201647035127 Abstract 14-10-2016.pdf	2016-10-14
9	Power of Attorney [14-10-2016(online)].pdf	2016-10-14
10	PROOF OF RIGHT [14-10-2016(online)].pdf	2016-10-14
10	201647035127.pdf	2016-10-18