Publication number: 20250008706
Abstract: The invention provides an AC/DC conversion device for intelligent green-power operation and maintenance in power transmission and transformation projects, including a cabinet, an assembling panel, an inverter, a driving mechanism and a controller. A door is mounted at the front portion of the cabinet in a fixed and sealed manner, and the assembling panel is fixedly mounted on the back wall of the cabinet inside the cabinet. The assembling panel, the inverter, the driving mechanism and the controller are all provided inside the cabinet, which provides desirable dust-proof effects, preventing the case where the inverter, the driving mechanism and the controller are interfered by the dust, so that this device is suitable for outdoor usage. The driving mechanism and the controller work in coordination, so that the inverter can be switched off in time when it burns out and smokes, thereby substantially reducing the risk of fire hazards.
Type:
Application
Filed:
March 20, 2024
Publication date:
January 2, 2025
Inventors:
Chengjia BAO, Long ZHAO, Ru LIU, Xushan HAN, Yanhong MA, Chen LIANG, Qiang ZHOU, Hailong GUO, Tianyi ZHANG, Wei NIU, Weicheng SHEN, Hui YUAN, Wenyuan BAI, Kequan LIU, Qingzhao HU, Ziqiang GUO, Guohan MA, Da CHANG, Bo WU, Li WANG, Yanhua DOU, Yechang GAO, Qin LIANG, Shuzhen REN
Patent number: 12184194
Abstract: The invention provides an AC/DC conversion device for intelligent green-power operation and maintenance in power transmission and transformation projects, including a cabinet, an assembling panel, an inverter, a driving mechanism and a controller. A door is mounted at the front portion of the cabinet in a fixed and sealed manner, and the assembling panel is fixedly mounted on the back wall of the cabinet inside the cabinet. The assembling panel, the inverter, the driving mechanism and the controller are all provided inside the cabinet, which provides desirable dust-proof effects, preventing the case where the inverter, the driving mechanism and the controller are interfered by the dust, so that this device is suitable for outdoor usage. The driving mechanism and the controller work in coordination, so that the inverter can be switched off in time when it burns out and smokes, thereby substantially reducing the risk of fire hazards.
Type:
Grant
Filed:
March 20, 2024
Date of Patent:
December 31, 2024
Assignees:
STATE GRID GANSU ELECTRIC POWER COMPANY LANZHOU POWER SUPPLY COMPANY, STATE GRID GANSU ELECTRIC POWER RESEARCH INSTITUTE
Inventors:
Chengjia Bao, Long Zhao, Ru Liu, Xushan Han, Yanhong Ma, Chen Liang, Qiang Zhou, Hailong Guo, Tianyi Zhang, Wei Niu, Weicheng Shen, Hui Yuan, Wenyuan Bai, Kequan Liu, Qingzhao Hu, Ziqiang Guo, Guohan Ma, Da Chang, Bo Wu, Li Wang, Yanhua Dou, Yechang Gao, Qin Liang, Shuzhen Ren
Patent number: 12027857
Abstract: A method for controlling peak saving by wind power grid. The method includes: S1: evaluating dispatchability of a cluster virtual wind power unit; S2: developing a method for calculating a dispatchability index of the cluster virtual wind power unit; S3: analyzing a source-load peak-shaving resource strategy; and S4: distributing a control strategy for tie-line peak shaving. The present disclosure has the following beneficial effects: In the present disclosure, real-time dispatchability of wind power participating in real-time power balance is first analyzed, specific evaluation indexes and calculation methods are provided, and calculation examples are given for verification. Then, an optimized real-time dispatch strategy is provided based on demand-side response resources, and DC and AC tie-lines are coordinated for operation. The peak shaving control method for emergent source-grid coordination when a sending-end power grid is faulty can ensure normal operation.
Type:
Grant
Filed:
July 10, 2021
Date of Patent:
July 2, 2024
Assignees:
STATE GRID GANSU ELECTRIC POWER RESEARCH INSTITUTE, STATE GRID GANSU ELECTRIC POWER COMPANY, State Grid Qinghai Electric Power Research Institute, State Grid Qinghai Electric Power Company, State Grid Corporation of China
Inventors:
Jien Niu, Qiang Zhou, Yanqi Zhang, Junhong Duan, Long Zhao, Diangang Hu, Jianjun Wu, Jinping Zhang, Zhicheng Ma, Xushan Han, Jun Song, Qingquan Lv, Ruixiao Zhang, Yanhong Ma, Jianmei Zhang, Guodong Wu, Pengfei Gao, Chengjia Bao, Weicheng Shen, Jin Li, Kequan Liu, Xiaodong Pang