-
公开(公告)号：US11955798B2
公开(公告)日：2024-04-09
申请号：US17511344
申请日：2021-10-26
发明人： Johannes Brombach , Ingo Mackensen , Kai Busker , Hanna Emanuel
CPC分类号： H02J3/0012 , H02J3/241 , H02J3/381 , H02J2300/28
摘要： Provided is a method for controlling at least two frequency-converter-based infeeders. The method includes specifying a first droop for a first frequency-converter-based infeeder and specifying a second droop for a second frequency-converter-based infeeder, where the second droop is different from the first droop. The method includes, controlling the first frequency-converter-based infeeder in dependence on the first droop, and controlling the second frequency-converter-based infeeder in dependence on the second droop.
-
公开(公告)号：US11258262B2
公开(公告)日：2022-02-22
申请号：US17066078
申请日：2020-10-08
摘要： Provided is a method for feeding electrical power into an electrical supply grid having a grid voltage by a wind power installation. The installation comprises a generator for generating a generator current, an active rectifier for rectifying the generator current into a rectified current, a direct voltage intermediate circuit having an intermediate circuit voltage for receiving the rectified current, a chopper circuit for diverting excess energy out of the direct voltage intermediate circuit, and an inverter for generating an infeed current for feeding into the electrical supply grid. The feed takes place in a voltage-impressing manner, so that the inverter counteracts a deviation of the grid voltage from a voltage setpoint value through an adjustment of the fed current. The active rectifier has a lower current limit to limit a fall of the rectified current to protect the generator during a change of the grid voltage amplitude or phase.
-
公开(公告)号：US20210111563A1
公开(公告)日：2021-04-15
申请号：US17066078
申请日：2020-10-08
IPC分类号： H02J3/38 , H02M7/04 , H02M7/44 , H02M1/32 , G01R19/165
摘要： Provided is a method for feeding electrical power into an electrical supply grid having a grid voltage by a wind power installation. The installation comprises a generator for generating a generator current, an active rectifier for rectifying the generator current into a rectified current, a direct voltage intermediate circuit having an intermediate circuit voltage for receiving the rectified current, a chopper circuit for diverting excess energy out of the direct voltage intermediate circuit, and an inverter for generating an infeed current for feeding into the electrical supply grid. The feed takes place in a voltage-impressing manner, so that the inverter counteracts a deviation of the grid voltage from a voltage setpoint value through an adjustment of the fed current. The active rectifier has a lower current limit to limit a fall of the rectified current to protect the generator during a change of the grid voltage amplitude or phase.
-
公开(公告)号：US10972029B2
公开(公告)日：2021-04-06
申请号：US16342468
申请日：2017-10-27
发明人： Kai Busker , Ingo Mackensen , Johannes Brombach , Eckard Quitmann , Hanna Emanuel , Martin Schellschmidt
摘要： A method for operating a wind power installation which is connected to a network connection point of an electrical supply network and is intended to produce and feed electrical energy into the electrical supply network, wherein the electrical supply network has a network nominal frequency and is operated at a network frequency, and the wind power installation which comprises an electrical generator with a generator nominal power can be regulated on the basis of the network frequency, comprising the steps of: using the electrical generator to produce an electrical generator power for feeding into the electrical supply network, feeding the electrical generator power or a part of it into the electrical supply network as electrical feed-in power on the basis of the network frequency, wherein, in a first supporting stage, the electrical generator power is reduced on the basis of the network frequency in order to accordingly reduce the electrical feed-in power, and, in a second supporting stage, the electrical feed-in power is reduced such that the electrical feed-in power is less than the electrical generator power.
-
-
-
搜索结果
4 条记录 (耗时 0.014 秒)
