-
公开(公告)号：EP3533996A1
公开(公告)日：2019-09-04
申请号：EP18159166.0
申请日：2018-02-28
摘要： It is described a method for starting a wind park (100) comprising plural wind turbines connectable in a collector system (106) connectable to a utility grid, the method comprising: starting at least one first wind turbine (101a, 101b, 101c), each being equipped with an utility grid independent energy supply (103a, 103b, 103c) and a grid forming function (161), to produce electrical energy from wind energy, thereby utilizing the respective grid independent energy supply (103a, 103b, 103c) for starting; performing the grid forming function by the first wind turbine (101a, 101b, 101c) to achieve a reference voltage (Vreference, Vreference,limited) in the collector system; starting at least one second wind turbine (113a, 113b) and/or at least one third wind turbine (115a, 115b, 115c, 115d) to produce energy by conversion of wind energy, thereby utilizing energy provided in the collector system (106) for starting.
-
公开(公告)号：EP3761472A1
公开(公告)日：2021-01-06
申请号：EP19184598.1
申请日：2019-07-05
IPC分类号： H02J3/38
摘要： It is described a method of controlling at least one converter of at least one wind turbine connectable to a wind park grid of a wind park during black start or island mode of the wind park, the method comprising: ramping up (9) a converter voltage reference (Vref, 105, 77) unless a power related condition and/or a wind park grid frequency related condition or a converter current related condition is violated.
-
公开(公告)号：EP3742571A1
公开(公告)日：2020-11-25
申请号：EP19175375.5
申请日：2019-05-20
发明人： Brogan, Paul Brian , Knüppel, Thyge
摘要： It is described a method of controlling an energy storage device (101) arranged to provide frequency support for a AC power system (103), the method comprising: setting an amount of energy (445) stored in the energy storage device (101) depending on a power system frequency (f) of the AC power in the AC power system (103).
-
4.发明公开
公开(公告)号：EP3709467A1
公开(公告)日：2020-09-16
申请号：EP19162620.9
申请日：2019-03-13
IPC分类号： H02J3/24 , H02J3/38 , H02M5/42 , H02J3/01 , H02M7/5395
摘要： There is described a method of controlling a grid forming PWM converter for a wind turbine generator in order to reduce subsynchronous active power oscillations. The described method comprises (a) determining a first control voltage based on a power reference value and a voltage reference value (b) obtaining a feedback current, the feedback current being measured at an output of the grid forming PWM converter, (c) determining a control voltage correction value based on a filtering of the feedback current, (d) determining a second control voltage by adding the control voltage correction value to the first control voltage, and (e) supplying a converter reference voltage to the grid forming PWM converter, wherein the converter reference voltage is based on the second control voltage. Further, a device for controlling a grid forming PWM converter for a wind turbine generator in order to reduce subsynchronous active power oscillations, and a wind turbine comprising such a device are described.
-
公开(公告)号：EP3731364A1
公开(公告)日：2020-10-28
申请号：EP19170521.9
申请日：2019-04-23
摘要： There is described a system for supplying electric power to a grid and for supporting the grid. The system comprises (a) a power generator comprising a main converter coupled to the grid, (b) an energy buffer comprising an energy storage and a secondary converter coupled to the grid in parallel with the main converter, (c) a grid stability monitor configured to provide a grid stability indication representative of a stability level of the grid, and (d) a controller configured to control the main converter and the secondary converter in dependency on the grid stability indication such that (d1) when the stability level is at least equal to a predetermined threshold value, the main converter is controlled to operate as a virtual synchronous machine and the secondary converter is controlled to operate to maintain a predetermined amount of energy in the energy storage, and (d2) when the stability level is below the predetermined threshold value, the secondary converter is operated to provide a predetermined response in order to support the grid stability.
-
-
-
-
搜索结果
5 条记录 (耗时 0.01 秒)
