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1. 发明申请

WO2012062323A3 METHOD AND SYSTEM FOR OPERATING A WIND TURBINE 审中-公开
标题翻译：风力发电机运行方法和系统
公开(公告)号：WO2012062323A3
公开(公告)日：2012-08-16
申请号：PCT/DK2011050421
申请日：2011-11-08
申请人： VESTAS WIND SYS AS , TEODORESCU REMUS , RODRIGUEZ PEDRO , ALLOZA ALVARO LUNA , GUPTA AMIT KUMAR
发明人： TEODORESCU REMUS , RODRIGUEZ PEDRO , ALLOZA ALVARO LUNA , GUPTA AMIT KUMAR
IPC分类号： F03D9/00 , F03D7/02 , F03D7/04 , H02J3/26 , H02J3/38
CPC分类号： G01R19/16533 , F03D7/00 , F03D7/0284 , F03D7/042 , F03D9/255 , F05B2270/337 , G01R19/10 , H02J3/26 , H02J3/386 , H02J2003/001 , H02K7/183 , H02P9/04 , Y02E10/723 , Y02E10/725 , Y02E10/763 , Y02E40/50
摘要： A method for operating a wind turbine and a system for operating a wind turbine are provided. The wind turbine includes a grid side converter and the grid side converter is coupled to a grid via a power line. The method includes determining a wind turbine operation strategy; determining a first active power reference and a first reactive power reference indicating a requested amount of active power and reactive power, respectively, depending on at least the wind turbine operation strategy; measuring a grid voltage of the grid; determining a positive sequence component and a negative sequence component of the grid voltage i.e. a positive sequence voltage and a negative sequence voltage; determining a second active power reference and a second reactive power reference indicating an actual amount of active power and reactive power to be supplied by the grid side converter to the grid, respectively, depending on at least the first active power reference, the first reactive power reference, and the wind turbine operation strategy; generating, based on at least the wind turbine operation strategy, a first parameter and a second parameter which define a proportion of positive sequence current component and negative sequence current component to be injected by the grid side converter in order to supply active power and reactive power in accordance with the second active power reference and the second reactive power reference; generating a current reference based on at least the second active power reference, the second reactive power reference, the positive sequence voltage, the negative sequence voltage, the first parameter, and the 77 second parameter; and supplying, with the grid side converter, active and reactive power to the power line based on the current reference.
摘要翻译：提供了一种用于操作风力涡轮机的方法和用于操作风力涡轮机的系统。风力涡轮机包括电网侧转换器，并且电网侧转换器经由电力线耦合到电网。该方法包括确定风力涡轮机操作策略; 至少根据风力涡轮机运行策略，分别确定第一有功功率基准和第一无功功率参考，其指示所请求的有功功率和无功功率量; 测量电网的电网电压; 确定电网电压的正序分量和负序分量，即正序电压和负序电压; 确定第二有功功率参考和第二无功功率参考，其指示将由电网侧转换器分别提供给电网的有效功率和无功功率的实际量，这取决于至少第一有功功率参考，第一无功功率参考和风力发电机运行策略; 基于至少所述风力涡轮机操作策略生成第一参数和第二参数，所述第一参数和第二参数定义由所述电网侧转换器注入的正序电流分量和负序电流分量的一部分，以便提供有功功率和无功功率根据第二有功功率参考和第二无功功率参考; 基于至少第二有功功率基准，第二无功功率基准，正序电压，负序电压，第一参数和77第二参数产生电流基准; 并且基于电流参考，与电网侧转换器一起向电力线提供有功和无功功率。

2. 发明申请

WO2008055499A2 ADVANCED REAL-TIME GRID MONITORING SYSTEM 审中-公开
标题翻译：高级实时网路监控系统
公开(公告)号：WO2008055499A2
公开(公告)日：2008-05-15
申请号：PCT/DK2007000483
申请日：2007-11-06
申请人： UNIV AALBORG , TEODORESCU REMUS , RODRIGUEZ PEDRO
发明人： TEODORESCU REMUS , RODRIGUEZ PEDRO
IPC分类号： G01R19/25
CPC分类号： G01R19/2513
摘要： This invention deals with an advanced Real-time Grid Monitoring System (RTGMS) suitable for both single-phase and three-phase electric power systems. This invention provides an essential signal processing block to be used as a part of complex systems either focused on supervising and diagnosing power systems or devoted to control power processors interacting with the grid. This invention is based on a new algorithm very suitable for real-time characterization of the grid variables under distorted and unbalanced grid conditions. The main characteristic of this invention is the usage of a frequency-locked loop, based on detecting the grid frequency, for synchronizing to the grid variables. It results in a very robust system response in relation to existing technique based on the phase-angle detection since grid frequency is much more stable variable than the grid voltage/current phase-angle, mainly during grid faults. Moreover, the algorithm supporting this invention is very efficient and can be implemented in regular industrial microprocessors. These features make the RTGMS object of this invention ideal to be applied in the control of distributed generation systems (DGS), flexible AC transmission systems (FACTS), power quality conditioners (PQC) and uninterruptible power supplies (UPS). In all these systems, the fast and precise real¬ time detection of the voltage and/or current sequence components under grid fault conditions is a crucial matter.
摘要翻译：本发明涉及适用于单相和三相电力系统的先进的实时电网监控系统（RTGMS）。本发明提供了一种基本的信号处理模块，用作复杂系统的一部分，重点在于监督和诊断电力系统，或专门用于控制与电网相互作用的功率处理器。本发明基于一种非常适合在失真和不平衡电网条件下对电网变量进行实时表征的新算法。本发明的主要特征是基于检测电网频率来使频率锁定环与网格变量同步的使用。由于电网频率比电网电压/电流相位角更为稳定，主要是在电网故障期间，因此相对于基于相位角检测的现有技术，可以获得非常强大的系统响应。此外，支持本发明的算法非常有效，并且可以在常规工业微处理器中实现。这些特征使本发明的RTGMS对象理想地应用于分布式发电系统（DGS），灵活交流传输系统（FACTS），电力质量调节器（PQC）和不间断电源（UPS）的控制。在所有这些系统中，在电网故障条件下电压和/或电流序列部件的快速和精确的实时检测是至关重要的。

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