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公开(公告)号：US09903896B2
公开(公告)日：2018-02-27
申请号：US14905279
申请日：2014-04-02
申请人： GANSU ELECTRIC POWER CORPORATION WIND POWER TECHNOLOGY CENTER , STATE GRID GANSU ELETRIC POWER CORPORATION , STATE GRID CORPORATION OF CHINA
发明人： Ningbo Wang , Liang Lu , Duo Wang , Shiyuan Zhou , Yuhong Zhang , Kun Ding , Dan Jin , Long Zhao , Shien He , Xushan Han , Yanhong Ma , Qiang Zhou , Dingmei Wang , Hongquan Xu , Guangtu Liu , Xiaoyong Wang , Jin Li , Ming Ma , Jinping Zhang , Rong Huang , Qingquan Lv , Jianmei Zhang
IPC分类号： G01R13/04 , G01R21/133 , G06F17/50 , G06F11/26 , G01R21/00
CPC分类号： G01R21/1331 , G01R21/003 , G06F11/26 , G06F17/5009
摘要： The present invention discloses a testing method for dynamic model parameters of a wind power plant, wherein under testing conditions including stable running of wind turbine generators and reactive-load compensation equipment, stable wind speed between a cut-in wind speed and a rated wind speed, and the wind power plant output smaller than a rated output, finishes a wind speed transient disturbance test, a wind power plant unit tripping and inputting disturbance test, a wind power plant power change test, a disturbance test for reactive-load compensation equipment of the wind power plant, a tripping disturbance test for hydroelectric power plant and thermal power plant near the wind power plant and a manual single-phase ground short circuit test at the outgoing line part of the wind power plant, and records running curves of the wind power plant under each condition to finish the parameter test. The present invention realizes the advantage of providing precise measurement data for the stability analysis of an electric power system and the production dispatching of a power grid.
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公开(公告)号：US12027857B2
公开(公告)日：2024-07-02
申请号：US17372458
申请日：2021-07-10
申请人： 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
发明人： 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
CPC分类号： H02J3/0012 , G05B13/042 , G06N3/126 , H02J13/00002
摘要： 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.
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公开(公告)号：US20230299585A1
公开(公告)日：2023-09-21
申请号：US18018577
申请日：2021-06-10
申请人： 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
发明人： Qiang Zhou , Yanhong Ma , Yanqi Zhang , Yue Wu , Ningbo Wang , Zhicheng Ma , Xushan Han , Guogang Jin , Long Zhao , Qingquan Lv , Dingmei Wang , Jinping Zhang , Pengfei Gao , Ruixiao Zhang , Jianmei Zhang , Jin Li , Zhenzhen Zhang , Lijuan Liu , Senlin Yang , Jun Kang , Rui Song
CPC分类号： H02J3/144 , H02J3/003 , H02J3/004 , H02J3/381 , H02J2310/60 , H02J2300/20 , H02J2203/10 , H02J2203/20
摘要： Disclosed is a coordinated peak shaving optimization method for a plurality of power supplies based on a fluctuation characteristic of a renewable energy source, including the following steps: s1: determining a weekly generated electricity quantity of hydropower based on an available capacity and a storage capacity of an electricity quantity; s2: predicting a renewable energy power generation curve and a load curve of a system weekly; s3: determining a start point of peak shaving of the hydropower based on an external transmission curve, the renewable energy generation curve, and the load curve of the system and a generating capacity of the hydropower; s4: determining a weekly peak shaving demand of the system; and s5: establishing an optimization model with a maximum peak shaving demand. The present disclosure proposes a reasonable arrangement for peak shaving, so as to resolve an accommodation problem caused by large-scale access of a renewable energy source.
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公开(公告)号：US20220037884A1
公开(公告)日：2022-02-03
申请号：US17372458
申请日：2021-07-10
申请人： 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
发明人： Qiang Zhou , Yanhong Ma , Yanqi Zhang , Yue Wu , Ningbo Wang , Zhicheng Ma , Xushan Han , Guogang Jin , Long Zhao , Dingmei Wang , Qingquan Lv , Jinping Zhang , Pengfei Gao , Ruixiao Zhang , Jianmei Zhang , Jin Li , Zhenzhen Zhang , Lijuan Liu , Yue Fan , Xiaokan Gou , Xuebin Wang
摘要： A peak shaving control method for emergent source-grid coordination in case of a faulty sending-end 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.
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