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Title:
METHOD AND SYSTEM FOR CONTROLLING ENERGY CONSUMPTION MEANS OF CONVERTER
Document Type and Number:
WIPO Patent Application WO/2019/096048
Kind Code:
A1
Abstract:
The present invention relates to the field of direct current transmission, and relates to a method and system for controlling an energy consumption means of a converter. An energy consumption means controlled by the present method and system consists of one or more groups of energy consumption branches and is arranged on an alternating current side of a sending end converter. When a working status of a direct current grid meets a switch-on condition of the energy consumption device, the present method and system selects, according to the size of redundant absorbed power of the direct current grid where the converter is located, the number of groups of energy consumption branches to be switched on of the energy consumption means. When the redundant power of the direct current grid is cut off and meets a switch-off condition of the energy consumption means, the present method and system then subsequently switch off the groups of energy consumption branches. The present method and system implement the switch-off/switch-off of energy consumption means using a grouping strategy, can reduce the disturbance to the system, and ensure the reliable operation of a non-fault converter during a system disturbance period.

Inventors:
WANG, Jiacheng (No. 69 Suyuan Avenue, JiangningNanjing, Jiangsu 2, 211102, CN)
LU, Yu (No. 69 Suyuan Avenue, JiangningNanjing, Jiangsu 2, 211102, CN)
WANG, Nannan (No. 69 Suyuan Avenue, JiangningNanjing, Jiangsu 2, 211102, CN)
LI, Gang (No. 69 Suyuan Avenue, JiangningNanjing, Jiangsu 2, 211102, CN)
DONG, Yunlong (No. 69 Suyuan Avenue, JiangningNanjing, Jiangsu 2, 211102, CN)
HU, Zhaoqing (No. 69 Suyuan Avenue, JiangningNanjing, Jiangsu 2, 211102, CN)
JIANG, Chongxue (No. 69 Suyuan Avenue, JiangningNanjing, Jiangsu 2, 211102, CN)
Application Number:
CN2018/114377
Publication Date:
May 23, 2019
Filing Date:
November 07, 2018
Export Citation:
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Assignee:
NR ELECTRIC CO., LTD (No. 69 Suyuan Avenue, JiangningNanjing, Jiangsu 2, 211102, CN)
NR ENGINEERING CO., LTD (No. 69 Suyuan Avenue, JiangningNanjing, Jiangsu 6, 211106, CN)
International Classes:
H02J3/36
Foreign References:
CN107834588A2018-03-23
CN106130057A2016-11-16
CN106159988A2016-11-23
CN105743115A2016-07-06
CN107181274A2017-09-19
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (12th FL.-B, No. 179 Zhongshan Road Gulo, Nanjing Jiangsu 5, 210005, CN)
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