Abstract: A method for identifying a pattern of a load cycle includes: performing statistics on a daily load of a system based on smart meter data; generating a curve of the daily load of the system according to the statistics on the daily load of the system; acquiring a result of clustering curves of loads of typical days by applying shape-based time sequence clustering analysis using the curve of the daily load of the system; and identifying a pattern of a load cycle according to the result of clustering the curves of the loads of the typical days.
Type:
Grant
Filed:
October 30, 2017
Date of Patent:
June 22, 2021
Assignees:
CHINA ELECTRIC POWER RESEARCH INSTITUTE CO. LTD., STATE GRID CORPORATION OF CHINA, STATE GRID FUJIAN ELECTRIC POWER RESEARCH INST., GLOBAL ENERGY INTERCONNECTION RES. INST. CO. LTD.
Abstract: A combined direct current circuit breaker includes a transfer branch, an energy absorption branch, at least two primary branches and at least two secondary branches; the transfer branch is connected in parallel with the energy absorption branch; the primary branches are in one-to-one correspondence with the second branches; the primary branches are connected with direct current outgoing lines of a direct current busbar in a high-voltage direct current power transmission system; the secondary branches are connected in series with the transfer branches and then connected in parallel with two ends of the primary branches corresponding to the secondary branches.
Type:
Grant
Filed:
May 22, 2017
Date of Patent:
August 25, 2020
Assignees:
GLOBAL ENERGY INTERCONNECTION RES. INST. CO., LTD., STATE GRID CORPORATION OF CHINA
Inventors:
Guangfu Tang, Zhiyuan He, Wandi Zhou, Xiaoguang Wei, Sheng Zhang, Yan Zhao, Xiang Luo, Pengzhi Li