专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07239535B2 Voltage source converter 有权
标题翻译：电压源转换器
公开(公告)号：US07239535B2
公开(公告)日：2007-07-03
申请号：US10929409
申请日：2004-08-31
申请人： Roland Siljeström , Lars Döfnäs , Ying Jiang-Häfner
发明人： Roland Siljeström , Lars Döfnäs , Ying Jiang-Häfner
IPC分类号： H02M1/12
CPC分类号： H02M1/12 , H02M7/5395
摘要： An apparatus for controlling a voltage source converter with at least two bridges of semiconducting self commutating elements connected in anti-parallel with a diode, including circuitry for producing a switching control pulse train to form a fundamental frequency, circuitry for effecting a switching order and circuitry for detecting a switching event.
摘要翻译：一种用于控制具有与二极管反并联连接的至少两个半导体自整流元件的电压源转换器的装置，包括用于产生开关控制脉冲串以形成基频的电路，用于实现开关顺序和电路用于检测切换事件。

2. 发明申请

US20130200859A1 CAPACITOR DISCHARGE IN A CELL BASED VOLTAGE SOURCE CONVERTER 有权
标题翻译：基于电池电压源转换器的电容器放电
公开(公告)号：US20130200859A1
公开(公告)日：2013-08-08
申请号：US13813081
申请日：2010-07-30
申请人： Ying Jiang-Häfner , Lars Döfnäs , Roland Siljeström , Erika Siljeström
发明人： Ying Jiang-Häfner , Lars Döfnäs , Roland Siljeström
IPC分类号： H02J7/00
CPC分类号： H02M7/49 , H02J3/36 , H02J7/00 , H02M7/483 , H02M2001/322 , H02M2007/4835 , Y02E60/60
摘要： A method and a device to discharge cell capacitors in a cell based voltage source converter. Each cell has switching elements in half bridge or full bridge configuration and a capacitor in parallel to the half or full bridge. Each cell has two terminals, whereof at least one is between two switching elements. The converter has AC and DC terminals, with the possibility to connect each of the terminals to ground, via a further switching element. A resistor is implemented into at least one of the ground connections. To discharge to capacitors, the switching elements in the respective cells are configured such, that the capacitor is in parallel connection to the terminals. The capacitors are thus discharged via the resistor to ground.
摘要翻译：一种用于在基于电池的电压源转换器中放电电池电容器的方法和装置。每个单元具有半桥或全桥配置的开关元件和与半桥或全桥并联的电容器。每个单元具有两个端子，其中至少一个在两个开关元件之间。转换器具有AC和DC端子，可以通过另一个开关元件将每个端子连接到地。电阻器被实现到至少一个接地连接中。为了放电到电容器，各个单元中的开关元件被配置为使得电容器与端子并联连接。因此，电容器经由电阻器被放电到地。

3. 发明授权

US08779730B2 Capacitor discharge in a cell based voltage source converter 有权
标题翻译：基于电池的电压源转换器中的电容放电
公开(公告)号：US08779730B2
公开(公告)日：2014-07-15
申请号：US13813081
申请日：2010-07-30
申请人： Ying Jiang-Häfner , Lars Döfnäs , Erika Siljeström
发明人： Ying Jiang-Häfner , Lars Döfnäs , Roland Siljeström
IPC分类号： H02J7/00 , H02J7/14 , H02M7/49
CPC分类号： H02M7/49 , H02J3/36 , H02J7/00 , H02M7/483 , H02M2001/322 , H02M2007/4835 , Y02E60/60
摘要： A method and a device to discharge cell capacitors in a cell based voltage source converter. Each cell has switching elements in half bridge or full bridge configuration and a capacitor in parallel to the half or full bridge. Each cell has two terminals, whereof at least one is between two switching elements. The converter has AC and DC terminals, with the possibility to connect each of the terminals to ground, via a further switching element. A resistor is implemented into at least one of the ground connections. To discharge to capacitors, the switching elements in the respective cells are configured such, that the capacitor is in parallel connection to the terminals. The capacitors are thus discharged via the resistor to ground.
摘要翻译：一种用于在基于电池的电压源转换器中放电电池电容器的方法和装置。每个单元具有半桥或全桥配置的开关元件和与半桥或全桥并联的电容器。每个单元具有两个端子，其中至少一个在两个开关元件之间。转换器具有AC和DC端子，可以通过另一个开关元件将每个端子连接到地。电阻器被实现到至少一个接地连接中。为了放电到电容器，各个单元中的开关元件被配置为使得电容器与端子并联连接。因此，电容器经由电阻器被放电到地。

4. 发明申请

US20130070491A1 INTERFACE ARRANGEMENT BETWEEN AC AND DC SYSTEMS INCLUDING FILTER AT TRANSFORMER NEUTRAL POINT 审中-公开
标题翻译：交流和直流系统之间的接口布置，包括变压器中性点的过滤器
公开(公告)号：US20130070491A1
公开(公告)日：2013-03-21
申请号：US13701346
申请日：2010-06-01
申请人： Ying Jiang-Häfner , Baoliang Sheng
发明人： Ying Jiang-Häfner , Baoliang Sheng
IPC分类号： H02M5/46
CPC分类号： H02M5/46 , H02J3/36 , Y02E60/60
摘要： An interface arrangement is provided for coupling between an AC system and a DC system. The arrangement includes a converter for conversion between AC and DC and having a DC side and an AC side, a transformer having a primary side with primary windings for coupling to the AC system and a secondary side with secondary windings coupled to the converter, where the secondary windings are coupled to ground via a neutral point of the secondary side, and a filter with filter elements set for removing a frequency component of at three times the fundamental frequency of an AC voltage appearing on the AC side of the converter. The filter is connected between the neutral point of the secondary side of the transformer and ground.
摘要翻译：提供了用于在AC系统和DC系统之间耦合的接口装置。该装置包括用于在AC和DC之间转换并具有DC侧和AC侧的转换器，具有初级侧的变压器，其具有用于耦合到AC系统的初级绕组和具有耦合到转换器的次级绕组的次级侧，其中次级绕组经由次级侧的中性点耦合到地，而具有滤波器元件的滤波器被设置用于去除在转换器的AC侧出现的AC电压的基频的三倍的频率分量。滤波器连接在变压器次级侧的中性点和地之间。

5. 发明申请

US20100085783A1 METHOD AND SYSTEM TO INFLUENCE THE POWER GENERATION OF AN ADJUSTABLE SPEED GENERATOR 有权
标题翻译：影响可调节速度发电机发电的方法和系统
公开(公告)号：US20100085783A1
公开(公告)日：2010-04-08
申请号：US12597851
申请日：2007-04-27
申请人： Ying Jiang-Häfner
发明人： Ying Jiang-Häfner
IPC分类号： H02J3/36 , H02P9/04
CPC分类号： H02J3/386 , H02M5/4505 , Y02E10/725 , Y02E10/763
摘要： A method and a system to influence the power generation of at least one adjustable speed generator. The system includes a first voltage source converter connected to a local AC bus. The local AC bus is provided with power by the at least one adjustable speed generator. A second voltage source converter connected to an AC grid. A DC link is connected between the first and the second voltage source converter. At least one control unit controls the first and the second voltage source converters. The at least one control unit performs the method to control the AC voltage in the local AC bus via the first voltage source converter and to modify a reference value for the AC voltage magnitude of the local AC bus in dependence on the AC voltage magnitude of the AC grid.
摘要翻译：一种影响至少一个可调速发电机发电的方法和系统。该系统包括连接到本地AC总线的第一电压源转换器。本地AC总线由至少一个可调速发电机供电。连接到AC电网的第二电压源转换器。 DC链路连接在第一和第二电压源转换器之间。至少一个控制单元控制第一和第二电压源转换器。所述至少一个控制单元执行用于经由第一电压源转换器来控制本地AC总线中的AC电压的方法，并且根据所述至少一个控制单元的AC电压幅度修改本地AC总线的AC电压幅度的参考值交流电网。

6. 发明授权

US08305778B2 Method and system to influence the power generation of an adjustable speed generator 有权
标题翻译：影响可调速发电机发电的方法和系统
公开(公告)号：US08305778B2
公开(公告)日：2012-11-06
申请号：US12597851
申请日：2007-04-27
申请人： Ying Jiang-Häfner
发明人： Ying Jiang-Häfner
IPC分类号： H02J3/36 , F03D9/00 , H02P9/04
CPC分类号： H02J3/386 , H02M5/4505 , Y02E10/725 , Y02E10/763
摘要： A method and a system to influence the power generation of at least one adjustable speed generator. The system includes a first voltage source converter connected to a local AC bus. The local AC bus is provided with power by the at least one adjustable speed generator. A second voltage source converter connected to an AC grid. A DC link is connected between the first and the second voltage source converter. At least one control unit controls the first and the second voltage source converters. The at least one control unit performs the method to control the AC voltage in the local AC bus via the first voltage source converter and to modify a reference value for the AC voltage magnitude of the local AC bus in dependence on the AC voltage magnitude of the AC grid.
摘要翻译：一种影响至少一个可调速发电机发电的方法和系统。该系统包括连接到本地AC总线的第一电压源转换器。本地AC总线由至少一个可调速发电机供电。连接到AC电网的第二电压源转换器。 DC链路连接在第一和第二电压源转换器之间。至少一个控制单元控制第一和第二电压源转换器。所述至少一个控制单元执行用于经由第一电压源转换器来控制本地AC总线中的AC电压的方法，并且根据所述至少一个控制单元的AC电压幅度修改本地AC总线的AC电压幅度的参考值交流电网。

7. 发明申请

US20090279328A1 HVDC SYSTEM AND METHOD TO CONTROL A VOLTAGE SOURCE CONVERTER IN A HVDC SYSTEM 有权
标题翻译： HVDC系统和控制HVDC系统中电压源转换器的方法
公开(公告)号：US20090279328A1
公开(公告)日：2009-11-12
申请号：US12306764
申请日：2007-06-14
申请人： Ying Jiang-Häfner
发明人： Ying Jiang-Häfner
IPC分类号： H02J3/36
CPC分类号： H02M5/40 , H02J3/36 , H02M7/797 , Y02E60/60
摘要： A method to control a voltage source converter in a HVDC system includes controlling a frequency and a voltage amplitude of an AC voltage generated by the voltage source converter independently of the conditions in an AC network connected to the voltage source converter. The method is performed by a control unit of an HVDC system. The method may form a basis of a method to black start an AC network. The AC network includes transmission lines and is connected to at least two AC power stations. One of the at least two AC power stations is connected via a HVDC system to the AC network.
摘要翻译：用于控制HVDC系统中的电压源转换器的方法包括控制与电压源转换器产生的AC电压的频率和电压幅度，而不管连接到电压源转换器的AC网络中的条件。该方法由HVDC系统的控制单元执行。该方法可以形成黑色启动AC网络的方法的基础。交流网络包括传输线，并连接至少两个交流发电站。至少两个交流发电站中的一个经由HVDC系统连接到AC网络。

8. 发明申请

US20140191507A1 METHOD FOR CONTROLLING POWER FLOW WITHIN A WIND PARK SYSTEM, CONTROLLER, COMPUTER PROGRAM AND COMPUTER PROGRAM PRODUCTS 有权
标题翻译：控制器，计算机程序和计算机程序产品的控制方法
公开(公告)号：US20140191507A1
公开(公告)日：2014-07-10
申请号：US14127874
申请日：2011-06-20
申请人： Per Holmberg , Ying Jiang-Häfner , Lars-Erik Juhlin
发明人： Per Holmberg , Ying Jiang-Häfner , Lars-Erik Juhlin
IPC分类号： F03D9/00 , H02J3/04 , H02J3/46 , H02J3/36
CPC分类号： H02J3/46 , F03D7/0284 , F03D7/048 , F03D9/257 , F05B2270/337 , H02J3/04 , H02J3/36 , H02J3/386 , H02J2003/388 , Y02E10/723 , Y02E10/763 , Y02E60/60
摘要： The invention relates to a method for controlling power flow within a wind park system (100) for power transmission to a main power grid (90), the wind park system (100) comprising two or more parallel-connected island wind park grids. The method comprises the steps of: controlling a first voltage source converter (10) as a swing bus in frequency control, the frequency control comprising controlling frequency to a steady state reference operating point for operating points within a power dead band and by means of frequency droop control when exceeding an end point of the power dead band, and controlling at least a second voltage source converter (20), (30), (40) in power control, the power control comprising controlling power flow to a steady state reference operating point for operating points within a frequency dead band and by means of power droop control when exceeding an end point of the frequency dead band. The invention also relates to controllers, computer programs and computer program products.
摘要翻译：本发明涉及一种用于控制风力发电系统（100）内用于向主电网（90）供电的功率流的方法，所述风电场系统（100）包括两个或多个并联连接的岛式风电场网格。该方法包括以下步骤：在频率控制中控制第一电压源转换器（10）作为摆动总线，所述频率控制包括将频率控制在用于工作死区内的工作点的稳态参考工作点，并且通过频率当超过功率死区的终点时下降控制，以及至少控制功率控制中的第二电压源转换器（20），（30），（40），所述功率控制包括将功率流控制到稳态参考运行指向频率死区内的工作点，并且当超过频率死区的终点时通过功率下降控制。本发明还涉及控制器，计算机程序和计算机程序产品。

9. 发明授权

US08946917B2 Method for controlling power flow within a wind park system, controller, computer program and computer program products 有权
标题翻译：用于控制风电场系统，控制器，计算机程序和计算机程序产品内的电力流量的方法
公开(公告)号：US08946917B2
公开(公告)日：2015-02-03
申请号：US14127874
申请日：2011-06-20
申请人： Per Holmberg , Ying Jiang-Häfner , Lars-Erik Juhlin
发明人： Per Holmberg , Ying Jiang-Häfner , Lars-Erik Juhlin
IPC分类号： F03D9/00 , H02P9/04
CPC分类号： H02J3/46 , F03D7/0284 , F03D7/048 , F03D9/257 , F05B2270/337 , H02J3/04 , H02J3/36 , H02J3/386 , H02J2003/388 , Y02E10/723 , Y02E10/763 , Y02E60/60
摘要： A method is provided for controlling power flow within a wind park system for power transmission to a main power grid, the wind park system including two or more parallel-connected island wind park grids. The method includes the steps of: controlling a first voltage source converter as a swing bus in frequency control, the frequency control including controlling frequency to a steady state reference operating point for operating points within a power dead band and by frequency droop control when exceeding an end point of the power dead band, and controlling at least a second voltage source converter in power control, the power control including controlling power flow to a steady state reference operating point for operating points within a frequency dead band and by power droop control when exceeding an end point of the frequency dead band. A controller and computer program product are also provided.
摘要翻译：提供了一种用于控制风力发电系统内的功率流的方法，用于向主电网供电，该风电场系统包括两个或更多个并联连接的岛屿风电场网格。该方法包括以下步骤：在频率控制中控制第一电压源转换器作为摆动总线，所述频率控制包括控制频率到稳态参考工作点，用于在功率死区内的工作点以及通过频率下降控制超过功率死区的端点，以及在功率控制中至少控制第二电压源转换器，所述功率控制包括控制功率流到稳定状态参考工作点以用于频率死区内的工作点，以及当超过频率死区时的功率下降控制频率死区的终点。还提供控制器和计算机程序产品。

10. 发明授权

US08767422B2 Interface arrangement between AC and DC systems using grounding switch 有权
标题翻译：使用接地开关的交流和直流系统之间的接口布置
公开(公告)号：US08767422B2
公开(公告)日：2014-07-01
申请号：US13698530
申请日：2010-06-01
申请人： Ying Jiang-Häfner , Baoliang Sheng
发明人： Ying Jiang-Häfner , Baoliang Sheng
IPC分类号： H02H7/00
CPC分类号： H02J3/36 , H01H33/596 , H02M1/32 , H02M7/487 , H02M2007/4835 , Y02E60/60
摘要： An interface arrangement for connection between an AC system and a DC system and to a method of disconnecting a DC system from an AC system are disclosed. The arrangement includes a converter for conversion between AC and DC having a DC side for connection to the DC system and an AC side for being coupled to the AC system, a set of circuit breakers coupled between the AC side of the converter and the AC system and a breaker assisting unit including a set of branches connected between the AC side of the converter and ground, where each branch includes a switch in series with an impedance element.
摘要翻译：公开了用于AC系统和DC系统之间的连接的接口装置以及从AC系统断开DC系统的方法。该装置包括用于在具有用于连接到DC系统的DC侧的AC和DC之间转换的转换器，以及耦合到AC系统的AC侧，耦合在转换器的AC侧与AC系统之间的一组断路器以及断路器辅助单元，其包括连接在转换器的AC侧和地之间的一组分支，其中每个分支包括与阻抗元件串联的开关。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式