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公开(公告)号：EP4135145A1
公开(公告)日：2023-02-15
申请号：EP20941775.7
申请日：2020-09-07
发明人： YU, Lianfu , BAO, Xianwen , XING, Xiaogang , LIU, Yanlu , ZUO, Meiling
IPC分类号： H02J3/38
摘要： A method, an apparatus, and a system for monitoring an islanding electricity generation unit. The method comprises: determining an islanding electricity generation unit in a new energy station on the basis of collected electrical capacity at critical electrical nodes of the new energy station (S10); and controlling a switch device corresponding to the determined islanding electricity generation unit to sever connection between said electricity generation unit and a collector line (S20), the critical electrical nodes comprising nodes that have a collecting effect on grid-connected current of the electricity generation units of the new energy station, and each collector line being constructed to collect grid-connected current from at least one electricity generation unit and input same into a main transformer of the new energy station.
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公开(公告)号：EP3618217A1
公开(公告)日：2020-03-04
申请号：EP18897136.0
申请日：2018-05-10
发明人： BAO, Xianwen , QIAO, Yuan , ZHANG, Yi
摘要： A photovoltaic power plant and a secondary frequency modulation control method therefor The photovoltaic power plant comprises a photovoltaic power station and an active power control system, wherein the photovoltaic power station comprises a photovoltaic array and a photovoltaic inverter, the photovoltaic inverter being used for converting direct-current electric energy generated by the photovoltaic array into alternating-current electric energy; and the active power control system is used for performing power allocation on the photovoltaic inverter based on a power control AGC instruction value when running data of the photovoltaic power plant meets a pre-set secondary frequency modulation condition, and adjusting an active power output from the photovoltaic inverter based on an AGC instruction value of the photovoltaic inverter subjected to power allocation. The photovoltaic power station can improve the accuracy of power control and the stability of a power system.
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3.发明公开
公开(公告)号：EP3916945A1
公开(公告)日：2021-12-01
申请号：EP20914766.9
申请日：2020-09-10
发明人： BAO, Xianwen , QIAO, Yuan , YU, Lianfu , ZUO, Meiling , LIU, Yanlu
IPC分类号： H02J3/24
摘要： A method and a control device for adjusting active power of a wind farm, and a controller of a wind farm are provided. The method includes: acquiring an active power increment to be adjusted in the wind farm; determining an active power adjustable amount of the wind farm based on active power adjustable amounts of wind turbines in the wind farm; and determining an active power adjustment amount of each of the wind turbines based on the active power increment to be adjusted in the wind farm and the active power adjustable amount of the wind farm, to adjust active power of each of the wind turbines.
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公开(公告)号：EP3651299A1
公开(公告)日：2020-05-13
申请号：EP18727649.8
申请日：2018-05-10
发明人： ZHANG, Yi , QIAO, Yuan , BAO, Xianwen
摘要： Disclosed are a photovoltaic power plant and a primary frequency modulation control method therefor. The photovoltaic power plant comprises a photovoltaic power plant and an active power control system, wherein the photovoltaic power plant comprises a photovoltaic array and a photovoltaic inverter, the photovoltaic inverter converting direct current electric energy generated by the photovoltaic array into alternating current electric energy; the active power control system is used for determining the variable quantity of active power of a single machine according to an operating state of the photovoltaic inverter when frequency values of grid connection points of the photovoltaic power plant meet a pre-set primary frequency modulation triggering condition, and regulating the active power output by the photovoltaic inverter. According to the photovoltaic power plant provided in the embodiments of the present invention, the response speed and accuracy of primary frequency modulation of a generator set can be improved, the movement of each generator set is consistent, and the stability of a power system is high.
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公开(公告)号：EP3618216A1
公开(公告)日：2020-03-04
申请号：EP18913775.5
申请日：2018-09-21
发明人： BAO, Xianwen , QIAO, Yuan , ZHANG, Yi
IPC分类号： H02J3/38
摘要： The present invention provides a power control method, device and system for a wind power station. The power control method comprises: obtaining running state data of the wind power station and a grid connection point in real time; determining whether the state of the grid connection point meets conditions of secondary frequency modulation according to the running state data; if it is determined that the state of the grid connection point meets the conditions of secondary frequency modulation, determining a limited power instruction value according to a pre-obtained theoretical power value of the wind power station, a given value of automatic power generation control, and a standby active power value reserved for primary frequency modulation; and generating and sending an instruction used for controlling the active power of the wind generating set of the wind power station according to the limited power instruction value.
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