Title:
VOLTAGE SOURCE TYPE DIRECT-CURRENT ICE MELTING APPARATUS, FLEXIBLE INTERCONNECTION SYSTEM AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2022/247100
Kind Code:
A1
Abstract:
A voltage source type direct-current ice melting apparatus (1), a flexible interconnection system (6) and a control method. The voltage source type direct-current ice melting apparatus (1) comprises a starting unit (10), a modular multi-level converter (20) and a measurement control unit (30). The flexible interconnection system (6) comprises two voltage source type direct-current ice melting apparatuses having the same circuit structure. The measurement control unit (30) can acquire set values, that are input by a user, of relevant parameters and then processes the set values, that are input by the user, of the relevant parameters and measured values, measured in real time by the measurement control unit, of the relevant parameters, thereby determining and sending a control signal, so as to control an operating state of the modular multi-level converter (20) in the apparatus or system, such that the measured values of the relevant parameters reach the set values that are input by the user, thereby controlling the modular multi-level converter (20) to output a direct-current ice melting current so as to realize direct-current ice melting, or to output or absorb reactive power so as to realize reactive compensation of an alternating-current power source, and flexible interconnection between two alternating-current power grids is realized by means of the flexible interconnection system (6).
More Like This:
| WO/2021/227267 | ON-LINE ICE-MELTING APPARATUS |
Inventors:
XIONG YAN (CN)
ZHOU YUEBIN (CN)
XU SHUKAI (CN)
CAO WANYU (CN)
FU CHUANG (CN)
ZHOU YUEBIN (CN)
XU SHUKAI (CN)
CAO WANYU (CN)
FU CHUANG (CN)
Application Number:
PCT/CN2021/123053
Publication Date:
December 01, 2022
Filing Date:
October 11, 2021
Export Citation:
Assignee:
ELECTRIC POWER RES INSTITUTE CHINA SOUTHERN POWER GRID (CN)
International Classes:
H02G7/16; H02G1/02
Foreign References:
| CN102354942A | 2012-02-15 | |||
| CN104078909A | 2014-10-01 | |||
| CN113097957A | 2021-07-09 | |||
| CN214900082U | 2021-11-26 | |||
| CN102820672A | 2012-12-12 | |||
| CN202712800U | 2013-01-30 | |||
| RU2376692C1 | 2009-12-20 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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