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公开(公告)号：US08653683B2
公开(公告)日：2014-02-18
申请号：US13111339
申请日：2011-05-19
IPC分类号： H02P9/42
CPC分类号： H02P9/007 , F03D9/25 , F03D9/257 , F05B2240/96 , H02J3/386 , H02P9/105 , H02P2101/15 , Y02E10/725 , Y02E10/763
摘要： The invention relates to a device and method for controlling a double-fed asynchronous machine (4), preferably for a power plant, in particular for a wind or water power plant. The device includes an indirect converter (6) which is connected on the rotor side to the double-fed asynchronous machine (4). The indirect converter (6) includes a rotor-side converter (20) and a line-side converter (24). At least one control element (8) is provided for controlling the indirect converter (6). At least one software-based and/or hardware-based damping element (40, 46, 48, 120) is provided which has changeable damping characteristics.
摘要翻译： 本发明涉及一种用于控制双馈异步机（4）的装置和方法，优选地用于发电厂，特别是用于风力或水力发电厂。 该装置包括间接转换器（6），该间接转换器（6）在转子侧连接到双馈异步机（4）。 间接转换器（6）包括转子侧转换器（20）和线路侧转换器（24）。 提供至少一个控制元件（8）用于控制间接转换器（6）。 提供至少一个基于软件的和/或基于硬件的阻尼元件（40,46,48,120），其具有可变阻尼特性。
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公开(公告)号：US20110215775A1
公开(公告)日：2011-09-08
申请号：US13063148
申请日：2008-09-11
IPC分类号： G05F1/70
CPC分类号： H02J3/26 , H02J3/386 , H02P9/007 , H02P21/00 , H02P2101/15 , Y02E10/763 , Y02E40/50
摘要： The invention relates to a method to control power output of a doubly-fed induction machine to a grid including the steps of measuring grid voltage and grid current in a three phase coordinate system, transforming grid voltage and grid current into a stator frame coordinate system, decomposing the grid voltage and grid current in the stator frame coordinate system in a positive sequence system and in a negative sequence system, calculating active and reactive power in the positive and negative sequence system, and controlling active and reactive power in the positive and negative sequence system. The object to provide a method to control power output of a doubly-fed induction machine which provides good dynamics and is able to allow fault-ride-through operations when unbalanced grid voltages occurs is solved in that active and reactive power in the positive and negative sequence system are used as independent state variables in a state controller, whereas the state controller generates manipulated values in the positive and negative sequence system separately which are subjected as manipulated state vectors to a state feedback in a stator frame coordinate system without further control loops before the manipulated vector resulting from state feedback is used to set the rotor voltage.
摘要翻译： 本发明涉及一种控制双馈感应电机到电网的功率输出的方法，包括以下步骤：测量三相坐标系中的电网电压和电网电流，将电网电压和电网电流转换成定子框架坐标系， 在正序系统和负序系统中分解定子框坐标系中的电网电压和电网电流，计算正序和负序系统中的有功和无功功率，并控制正序和负序中的有功和无功功率 系统。 目的是提供一种控制双馈感应电机的功率输出的方法，其提供良好的动力学并且能够在发生不平衡电网电压时允许故障穿越操作被解决为正和负的有功和无功功率 序列系统被用作状态控制器中的独立状态变量，而状态控制器分别在正序和负序系统中生成被作为操纵状态向量的受控值到定子帧坐标系中的状态反馈，而没有进一步的控制回路 由状态反馈产生的操纵矢量用于设定转子电压。
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公开(公告)号：US08698461B2
公开(公告)日：2014-04-15
申请号：US13063148
申请日：2008-09-11
IPC分类号： H02P9/46
CPC分类号： H02J3/26 , H02J3/386 , H02P9/007 , H02P21/00 , H02P2101/15 , Y02E10/763 , Y02E40/50
摘要： The invention relates to a method to control power output of a doubly-fed induction machine to a grid including the steps of measuring grid voltage and grid current in a three phase coordinate system, transforming grid voltage and grid current into a stator frame coordinate system, decomposing the grid voltage and grid current in the stator frame coordinate system in a positive sequence system and in a negative sequence system, calculating active and reactive power in the positive and negative sequence system, and controlling active and reactive power in the positive and negative sequence system. The object to provide a method to control power output of a doubly-fed induction machine which provides good dynamics and is able to allow fault-ride-through operations when unbalanced grid voltages occurs is solved in that active and reactive power in the positive and negative sequence system are used as independent state variables in a state controller, whereas the state controller generates manipulated values in the positive and negative sequence system separately which are subjected as manipulated state vectors to a state feedback in a stator frame coordinate system without further control loops before the manipulated vector resulting from state feedback is used to set the rotor voltage.
摘要翻译： 本发明涉及一种控制双馈感应电机到电网的功率输出的方法，包括以下步骤：测量三相坐标系中的电网电压和电网电流，将电网电压和电网电流转换成定子框架坐标系， 在正序系统和负序系统中分解定子框坐标系中的电网电压和电网电流，计算正序和负序系统中的有功和无功功率，并控制正序和负序中的有功和无功功率 系统。 目的是提供一种控制双馈感应电机的功率输出的方法，其提供良好的动力学并且能够在发生不平衡电网电压时允许故障穿越操作被解决为正和负的有功和无功功率 序列系统被用作状态控制器中的独立状态变量，而状态控制器分别在正序和负序系统中生成被作为操纵状态向量的受控值到定子帧坐标系中的状态反馈，而没有进一步的控制回路 由状态反馈产生的操纵矢量用于设定转子电压。
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公开(公告)号：US20110260454A1
公开(公告)日：2011-10-27
申请号：US13111339
申请日：2011-05-19
CPC分类号： H02P9/007 , F03D9/25 , F03D9/257 , F05B2240/96 , H02J3/386 , H02P9/105 , H02P2101/15 , Y02E10/725 , Y02E10/763
摘要： The invention relates to a device and method for controlling a double-fed asynchronous machine (4), preferably for a power plant, in particular for a wind or water power plant. The device includes an indirect converter (6) which is connected on the rotor side to the double-fed asynchronous machine (4). The indirect converter (6) includes a rotor-side converter (20) and a line-side converter (24). At least one control element (8) is provided for controlling the indirect converter (6). At least one software-based and/or hardware-based damping element (40, 46, 48, 120) is provided which has changeable damping characteristics.
摘要翻译： 本发明涉及一种用于控制双馈异步机（4）的装置和方法，优选地用于发电厂，特别是用于风力或水力发电厂。 该装置包括间接转换器（6），该间接转换器（6）在转子侧连接到双馈异步机（4）。 间接转换器（6）包括转子侧转换器（20）和线路侧转换器（24）。 提供至少一个控制元件（8）用于控制间接转换器（6）。 提供至少一个基于软件和/或基于硬件的阻尼元件（40,46,48,120），其具有可变阻尼特性。
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