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1.发明公开SYSTEM AND METHOD FOR CONTROLLING DC LINK VOLTAGE OF A POWER CONVERTER FOR DOUBLY-FED INDUCTION GENERATORS 审中-公开用于控制双馈感应发电机的功率变换器的直流链路电压的系统和方法
公开(公告)号：EP3214719A1
公开(公告)日：2017-09-06
申请号：EP17157474.2
申请日：2017-02-22
CPC分类号： H02P9/007 , F03D7/0272 , F05B2270/327 , H02J3/386 , H02P9/42 , Y02E10/723 , Y02E10/725 , Y02E10/763
摘要： The present subject matter is directed to a system and method for operating an electrical power circuit 200 connected to a power grid 242. The electrical power circuit 200 has a power converter 210 electrically coupled to a generator 118. The method includes monitoring a rotor speed of the generator 118 during operation of the electrical power circuit 200. The method also includes increasing an operating range of the rotor speed of the generator 118. Further, the method includes determining at least one of a line-side voltage of a line-side converter 222 of the power converter 210 or a rotor-side voltage of a rotor-side converter 220 of the power converter 210 during operation of the electrical power circuit 200. Another step include controlling, via a converter controller 262, a DC link voltage of a DC link 244 of the power converter 210 as a function of one or more of the line-side voltage, the rotor-side voltage, and/or the rotor speed.
摘要翻译： 本主题涉及用于操作连接到电网242的电力电路200的系统和方法。电力电路200具有电耦合到发电机118的电力转换器210.该方法包括监视 该方法还包括增加发电机118的转子速度的操作范围。此外，该方法包括确定线路侧变流器的线路侧电压中的至少一个 功率转换器210的直流链路电压或电力转换器210的转子侧转换器220的转子侧电压。另一步骤包括经由转换器控制器262控制 作为电网侧电压，转子侧电压和/或转子速度中的一个或多个的函数的功率转换器210的DC链路244。
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公开(公告)号：EP3622607A1
公开(公告)日：2020-03-18
申请号：EP18798349.9
申请日：2018-05-07
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3.发明公开SYSTEM AND METHOD FOR DE-RATING POWER OF A WIND TURBINE AS A FUNCTION OF TEMPERATURE 审中-公开系统在维也纳ZUR DROSSELUNG DER LEISTUNG EINER WINDTBB在ABHÄNGIGKEITDER TEMPERATUR
公开(公告)号：EP3098442A1
公开(公告)日：2016-11-30
申请号：EP16170868.0
申请日：2016-05-23
IPC分类号： F03D7/02
CPC分类号： F03D7/00 , F03D7/028 , F03D9/25 , F03D9/255 , F03D17/00 , F05B2270/303 , Y02E10/723
摘要： The present subject matter is directed to a system 300 and method 400 for operating a wind turbine 100. The method 400 includes measuring, via one or more temperature sensors 302, 304, a local temperature of a component of the wind turbine 100 for a predetermined time period. The method 400 also includes determining a power capability 312 of the wind turbine 100 as a function of the local temperature. Another step includes measuring, via one or more sensors 252, 254, 256, 264, a power output of the wind turbine 100 for the predetermined time period. A further step includes determining a power margin 316 of the wind turbine 100 as a function of the power capability 312 and the measured power output and controlling the power output of the wind turbine 100 based, at least in part, on the power margin 316.
摘要翻译： 本主题涉及用于操作风力涡轮机100的系统300和方法400.方法400包括经由一个或多个温度传感器302,304测量风力涡轮机100的部件的局部温度，用于预定的 时间段。 方法400还包括根据局部温度确定风力涡轮机100的功率能力312。 另一步骤包括经由一个或多个传感器252,254,256,264测量风力涡轮机100的预定时间段的功率输出。 另一步骤包括至少部分地基于功率余量316来确定作为功率能力312和测量的功率输出的函数的风力涡轮机100的功率余量316和控制风力涡轮机100的功率输出。
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公开(公告)号：EP3187727A2
公开(公告)日：2017-07-05
申请号：EP16205381.3
申请日：2016-12-20
IPC分类号： F03D7/02
CPC分类号： H02J3/386 , F03D7/0272 , F05B2270/327 , Y02E10/723 , Y02E10/763
摘要： A wind generation system (100) includes a wind turbine (1) for generating mechanical power, a doubly-fed induction generator (2) for converting the mechanical power to electrical power, a converter (3) for converting the electrical power to a desired electrical power for supplying to a power grid, and a transformer (7) through which a stator of the generator (2) is coupled to the power grid. When a measured rotation speed feedback from the rotor (21) of the generator is lower than an original cut-in rotation speed of the rotor, a cut-in rotation speed of the rotor is lowered by determining a DC link (33) voltage margin of the converter, determining a DC link (33) voltage setpoint of the converter based on the determined DC link (33) voltage margin; and controlling the converter (3) based on the determined DC link (33) voltage setpoint; and/or by increasing a turn ratio of the transformer (7) to reduce a grid voltage from the power grid (6).
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公开(公告)号：EP3788689A1
公开(公告)日：2021-03-10
申请号：EP18917461.8
申请日：2018-05-04
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公开(公告)号：EP3187727A3
公开(公告)日：2017-11-15
申请号：EP16205381.3
申请日：2016-12-20
CPC分类号： H02J3/386 , F03D7/0272 , F05B2270/327 , Y02E10/723 , Y02E10/763
摘要： A wind generation system (100) includes a wind turbine (1) for generating mechanical power, a doubly-fed induction generator (2) for converting the mechanical power to electrical power, a converter (3) for converting the electrical power to a desired electrical power for supplying to a power grid, and a transformer (7) through which a stator of the generator (2) is coupled to the power grid. When a measured rotation speed feedback from the rotor (21) of the generator is lower than an original cut-in rotation speed of the rotor, a cut-in rotation speed of the rotor is lowered by determining a DC link (33) voltage margin of the converter, determining a DC link (33) voltage setpoint of the converter based on the determined DC link (33) voltage margin; and controlling the converter (3) based on the determined DC link (33) voltage setpoint; and/or by increasing a turn ratio of the transformer (7) to reduce a grid voltage from the power grid (6).
摘要翻译： 风力发电系统（100）包括用于产生机械动力的风力涡轮机（1），用于将机械动力转换成电力的双馈感应发电机（2），用于将电力转换成期望的转换器（3） 用于向电网供电的电力以及变压器（7），发电机（2）的定子通过该变压器耦合到电网。 当从发电机的转子（21）测量到的转速反馈低于转子的原始切入转速时，通过确定直流环节（33）的电压余量来降低转子的切入转速 基于确定的DC链路（33）电压余量确定转换器的DC链路（33）电压设定点; 以及基于所确定的DC链路（33）电压设定点来控制转换器（3） 和/或通过增加变压器（7）的匝数比来降低来自电网（6）的电网电压。
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8.发明公开SYSTEM AND METHOD FOR DETECTING ISLANDING OF ELECTRICAL MACHINES AND PROTECTING SAME 审中-公开系统和方法检测ISLAND教育电气机械及保护的
公开(公告)号：EP2891224A1
公开(公告)日：2015-07-08
申请号：EP12883706.9
申请日：2012-08-30
发明人： ZHU, Huibin , RITTER, Allen Michael , LARSEN, Einar Vaughn , KLODOWSKI, Anthony Michael , BARKER, Sidney Allen , WU, Xueqin , CHANG, Shouzhong
CPC分类号： H02H7/06 , F03D9/255 , F03D17/00 , G01R19/165 , G01R21/00 , G01R25/00 , H02J3/38 , H02J3/386 , H02J2003/388 , Y02E10/763
摘要： In one aspect, a method for protecting one or more electrical machines during an islanding event is provided. The method includes connecting one or more electrical machines to an alternating current (AC) electric power system, wherein the AC electric power system is configured to transmit at least one phase of electrical power to the one or more electrical machines or to receive at least on phase of electrical power from the one or more electrical machines; electrically coupling at least a portion of a control system to at least a portion of the AC electric power system; coupling at least a portion of the control system in electronic data communication with at least a portion of the one or more electrical machines; and detecting an islanding of the one or more electrical machines based on one or more conditions monitored by the control system.
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公开(公告)号：EP3214719B1
公开(公告)日：2019-01-23
申请号：EP17157474.2
申请日：2017-02-22
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公开(公告)号：EP3276819A1
公开(公告)日：2018-01-31
申请号：EP17179970.3
申请日：2017-07-06
CPC分类号： H02P9/48 , F03D7/0272 , F03D7/0276 , F03D7/028 , F03D7/042 , F03D9/255 , H02K3/28 , H02K2213/09 , H02P9/007 , H02P25/184 , H02P2101/15 , H02P2103/10 , H02P2103/20 , Y02E10/725
摘要： The present subject matter is directed to an electrical power circuit connected to a power grid 242 and method of operating same. The electrical power circuit has a power converter 210 electrically coupled to a generator 118, such as a doubly-fed induction generator, having a rotor 122 and a stator 120. Thus, the method includes operating rotor connections 124 of the rotor 122 of the generator 118 in a wye configuration during a first rotor speed operating range. Further, the method includes monitoring a rotor speed of the rotor 122 of the generator 118. Thus, the method also includes transitioning the rotor connections 118 of the rotor 122 from the wye configuration to a delta configuration if the rotor speed changes to a second rotor speed operating range.
摘要翻译： 本主题涉及连接到电网242的电力电路及其操作方法。 电力电路具有电力转换器210，电力转换器210电耦合到发电机118，例如具有转子122和定子120的双馈感应发电机。因此，该方法包括操作发电机的转子122的转子连接部124 在第一转子速度操作范围期间以星形配置。 此外，该方法包括监测发电机118的转子122的转子速度。因此，该方法还包括：如果转子速度改变为第二转子，则该方法还包括将转子122的转子连接部118从星形配置转变成三角形配置 速度操作范围。
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