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公开(公告)号：WO2021001002A1
公开(公告)日：2021-01-07
申请号：PCT/DK2020/050179
申请日：2020-06-19
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Per Hagen
Abstract: A method for estimating components of a grid impedance, Z, of a power grid (1) being coupled to a power generating unit at a point of interconnection (4) is disclosed. A voltage, V meas , across the point of interconnection (4); an active current, I P , and/or an active power, P, delivered by the power generating unit to the power grid (1); and a reactive current, I Q , and/or a reactive power, Q, delivered by the power generating unit to the power grid (1) are determined. A parameter estimation vector is estimated using a recursive adaptive filter algorithm, and on the basis of V meas , I P , P, I Q and/or Q. A model representation of the power grid (1) is created on the basis of the parameter estimation vector, and a system DC gain vector for the power grid (1) is calculated, using the model representation. Finally, the grid impedance, Z, and/or a resistance, R, of the grid impedance, Z, and/or a reactance, X, of the grid impedance, Z, is derived from the system DC gain vector.
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公开(公告)号：WO2020141009A1
公开(公告)日：2020-07-09
申请号：PCT/DK2019/050424
申请日：2019-12-30
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Per Hagen
Abstract: A renewable power plant (100) configured to deliver electrical power to an electrical grid (104) in accordance with a reference (200) is disclosed. The renewable power plant (100) comprises at least one energy generating system of a first type (101), at least one energy generating system of a second type (102), and a control system (105). The control system (105) comprises a central power plant controller (CPPC) (106) which generates setpoints (203) for controlling the energy generating systems (101, 102, 103) in accordance with the reference (200) and communicates the setpoints (203) to the energy generating systems (101, 102, 103).The energy generating systems (101, 102, 103) generate feedback signals (209) and communicate them to the CPPC (106). The energy generating system of the second type (102) introduces a time delay (206). The control system (105) is configured to generate a modified feedback signal (210) based on the feedback signal (209) received from the energy generating systems of the second type (102), and using a model (207) representing operational behaviour of the energy generating systems of the second type (102). The CPPC (106) is configured to apply the modified feedback signal (210) to a feedback control loop for controlling the energy generating systems (101, 102, 103).
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公开(公告)号：WO2022128032A1
公开(公告)日：2022-06-23
申请号：PCT/DK2021/050364
申请日：2021-12-14
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Per Hagen , LUND, Torsten
Abstract: A method for controlling one or more renewable power generators forming a renewable power plant, and a controller configured to perform the method. The method comprises: receiving a measured voltage level of a power network to which the one or more renewable power generators are connected; determining reactive power set points for the one or more renewable power generators based on the measured voltage level; and dispatching the reactive power set points to controllers of the one or more renewable power generators for controlling the one or more renewable power generators. The step of determining reactive power set points for the one or more renewable power generators based on the measured voltage level comprises dynamically determining a voltage-reactive power relationship value (dV/dQ), based on one or more power network conditions, that is indicative of changes in voltage in response to a change in reactive power; determining a voltage error value between a voltage reference value (Vpcc_ref) and the measured voltage level (Vpcc); and determining the reactive power set points based on voltage error value and the dynamically determined voltage-reactive power relationship value (dV/dQ). An advantage of the invention is that plant voltage control is carried out on the basis of a more accurate voltage-reactive power relationship value (dV/dQ) which is determined dynamically based on grid conditions rather than the conventional approach of the voltage-reactive power relationship being a static value that is based on information provided by a transmission system operator during installation or commissioning of the power plant. The power plant operator is therefore able to satisfy the requirements for reactive power support with improved accuracy and reliability.
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公开(公告)号：WO2011150941A1
公开(公告)日：2011-12-08
申请号：PCT/DK2011/050194
申请日：2011-06-02
Applicant: VESTAS WIND SYSTEMS A/S , KAPPELGAARD, Søren , NIELSEN, Per Hagen
Inventor： KAPPELGAARD, Søren , NIELSEN, Per Hagen
CPC classification number: G05B23/021 , F03D7/0224 , F03D7/047 , F03D17/00 , F05B2260/74 , F05B2260/83 , F05B2260/84 , G05B17/02 , Y02E10/723
Abstract: The invention relates to a test device (500) and method (100) of testing a wind power plant component, such as a wind power plant controller (20). The test device (500) includes one or more subsystem simulators (530, 540, 550, 560, 66, 570, 575, 580, 585)that cooperate to provide a system level simulation of a wind power plant (10). Each subsystem simulator (530, 540, 550, 560, 566, 70, 575, 580, 585) is configured to simulate a wind power plant subsystem or conditions influencing the wind power plant (10).The method(100) includes connecting (102) the wind power plant controller (20) to the test device (500), and testing (103) the wind power plant controller (20).
Abstract translation: 本发明涉及对诸如风力发电厂控制器（20）的风力发电设备部件进行测试的测试装置（500）和方法（100）。 测试装置（500）包括一个或多个子系统模拟器（530,540,550,560,66,570,575,580,585），其协作以提供风力发电厂（10）的系统级模拟。 每个子系统模拟器（530,540,550,560,566,70,575,580,585,585）被配置为模拟风力发电厂子系统或影响风力发电厂（10）的条件。该方法（100）包括连接 102）风力发电厂控制器（20）到测试装置（500），以及测试（103）风力发电厂控制器（20）。
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公开(公告)号：WO2021223829A1
公开(公告)日：2021-11-11
申请号：PCT/DK2021/050144
申请日：2021-05-06
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： LUND, Torsten , TARNOWSKI, Germán Claudio , NIELSEN, John Godsk , NIELSEN, Per Hagen
Abstract: Aspects of the present invention relate to a method of voltage control for at least one wind turbine generator (14) configured to absorb and supply reactive power on demand, the method comprises: receiving a dispatch signal from a power plant controller (22) indicating a reactive power set point (Qunit n setp); determining a terminal voltage level (Vunit) of the at least one wind turbine generator (14); generating a reactive power correction value (Qcorrect) based on a deviation of the terminal voltage level (Vunit) from a voltage set point (Vunit n-setp); adjusting the reactive power set point (Qunit n setp) by the reactive power correction value (Qcorrect); and controlling the at least one wind turbine generator according to the adjusted reactive power set point (Qunit n control).
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Patent Agency Ranking6.发明申请
公开(公告)号：WO2008086801A2
公开(公告)日：2008-07-24
申请号：PCT/DK2008/000013
申请日：2008-01-15
Applicant: VESTAS WIND SYSTEMS A/S , RASMUSSEN, Keld , LOVMAND, Bo , FUGLSANG, Bjørn , NIELSEN, Per Hagen , HELBO, Ole
Inventor： RASMUSSEN, Keld , LOVMAND, Bo , FUGLSANG, Bjørn , NIELSEN, Per Hagen , HELBO, Ole
CPC classification number: F03D7/047 , F03D7/048 , F03D17/00 , F05B2240/96 , G05B15/02 , Y02E10/723
Abstract: The invention related to a wind farm monitoring and control system, said system comprising - at least one wind farm, - at least one intelligent management server connectable to said at least one wind farm via a data communication network, - at least one wind farm configuration tool related to said intelligent management server for establishment of connection(s) to said at least one wind farm. The present invention presents a system for monitoring and control of wind farms. The monitoring and control is performed so that it is possible to monitor and control several wind farms homogeneously. Hereby it is possible to monitor and control different wind farms simultaneously with a uniform output and it is moreover possible to compare data from the wind farms.
Abstract translation: 本发明涉及一种风电场监测和控制系统，所述系统包括 - 至少一个风电场 - 至少一个可经由数据通信网络连接到所述至少一个风电场的智能管理服务器， - 至少一个风电场配置 与所述智能管理服务器相关的工具，用于建立到所述至少一个风电场的连接。 本发明提出了一种风电场监控系统。 执行监视和控制，使得可以均匀地监视和控制几个风电场。 因此，可以同时输出不同的风电场来监控和控制，并且还可以比较来自风电场的数据。
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公开(公告)号：EP2111509A2
公开(公告)日：2009-10-28
申请号：EP08700885.0
申请日：2008-01-15
Applicant: Vestas Wind Systems A/S
Inventor： RASMUSSEN, Keld , LOVMAND, Bo , FUGLSANG, Bjørn , NIELSEN, Per Hagen , HELBO, Ole
CPC classification number: F03D7/047 , F03D7/048 , F03D17/00 , F05B2240/96 , G05B15/02 , Y02E10/723
Abstract: A wind farm monitoring and control system, includes at least one wind farm, at least one intelligent management server connectable to the at least one wind farm via a data communication network, and at least one wind farm configuration tool related to the intelligent management server for establishment of connection(s) to the at least one wind farm. A system for monitoring and control of wind farms is provided. The monitoring and control is performed so that it is possible to monitor and control several wind farms homogeneously. Hereby it is possible to monitor and control different wind farms simultaneously with a uniform output and it is moreover possible to compare data from the wind farms.
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公开(公告)号：EP2111509B1
公开(公告)日：2018-10-24
申请号：EP08700885.0
申请日：2008-01-15
Applicant: Vestas Wind Systems A/S
Inventor： RASMUSSEN, Keld , LOVMAND, Bo , FUGLSANG, Bjørn Priisholm , NIELSEN, Per Hagen , HELBO, Ole
CPC classification number: F03D7/047 , F03D7/048 , F03D17/00 , F05B2240/96 , G05B15/02 , Y02E10/723
Abstract: A wind farm monitoring and control system, includes at least one wind farm, at least one intelligent management server connectable to the at least one wind farm via a data communication network, and at least one wind farm configuration tool related to the intelligent management server for establishment of connection(s) to the at least one wind farm. A system for monitoring and control of wind farms is provided. The monitoring and control is performed so that it is possible to monitor and control several wind farms homogeneously. Hereby it is possible to monitor and control different wind farms simultaneously with a uniform output and it is moreover possible to compare data from the wind farms.
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公开(公告)号：EP4264768A1
公开(公告)日：2023-10-25
申请号：EP21827600.4
申请日：2021-12-14
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Per Hagen , LUND, Torsten
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公开(公告)号：EP4147322A1
公开(公告)日：2023-03-15
申请号：EP21725700.5
申请日：2021-05-06
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： LUND, Torsten , TARNOWSKI, Germán Claudio , NIELSEN, John Godsk , NIELSEN, Per Hagen
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