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公开(公告)号：US20150357941A1
公开(公告)日：2015-12-10
申请号：US14760185
申请日：2013-10-16
CPC分类号： H02M7/757 , H02J3/36 , H02J2003/365 , H02M7/5152 , H02M7/7575 , H02M7/797 , H02M2001/0048 , H02M2007/4835 , Y02B70/1491 , Y02E60/60
摘要： A voltage source converter comprises: at least two converter limbs, each converter limb extending between DC terminals and having limb portions separated by an AC terminal. Each limb portion includes at least one switching element and at least one chain-link converter including series-connected modules. Each module includes at least one switching element and at least one energy storage device that combine to selectively provide a voltage source. The chain-link converter(s) form a branch to interconnect two AC terminals. Each limb portion is switchable to switch the corresponding chain-link converter(s) into and out of circuit with a respective DC terminal. The chain-link converter(s) is switchable to control the configuration of an AC voltage at each corresponding AC terminal. The converter further includes a control unit that coordinates the switching of the limb portions and the chain-link converter(s) to cause transfer of real power between the AC and DC electrical networks.
摘要翻译： 电压源转换器包括：至少两个转换器分支，每个转换器分支在直流端子之间延伸并且具有由AC端子分开的分支部分。 每个肢体部分包括至少一个开关元件和包括串联连接的模块的至少一个链节转换器。 每个模块包括至少一个开关元件和组合以选择性地提供电压源的至少一个能量存储装置。 链式转换器形成分支以互连两个AC端子。 每个肢体部分可切换以将相应的链式转换器与相应的直流端子切换成电路。 链式转换器可切换以控制每个相应AC端子处的AC电压的配置。 转换器还包括一个控制单元，该控制单元协调肢体部分和链式转换器的转换，以在AC电力网络和DC电力网络之间实现有功功率的传递。
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公开(公告)号：US20150357901A1
公开(公告)日：2015-12-10
申请号：US14760450
申请日：2013-12-06
CPC分类号： H02M1/12 , H02M7/066 , H02M2007/4835
摘要： A voltage source converter includes a converter limb extending between DC terminals and having limb portions separated by an AC terminal, the DC terminals being connectable to a DC electrical network and the AC terminal being connectable to an AC electrical network. Each limb portion includes at least one switching element and a chain-link converter including a series-connected modules, each module including at least one switching element and at least one energy storage device combining to selectively provide a voltage source. The chain-link converter is connected to the AC terminal, and the switching element(s) of each limb portion is switchable to switch the chain-link converter into and out of circuit with the corresponding DC terminal. The voltage source includes a control unit which coordinates the switching of the switching elements of the limb portions and the switching element(s) in each module of the chain-link converter.
摘要翻译： 电压源转换器包括在直流端子之间延伸并具有由AC端子分开的分支部分的转换器臂，所述DC端子可连接到DC电网并且AC端子可连接到AC电网络。 每个肢体部分包括至少一个开关元件和包括串联连接的模块的链式转换器，每个模块包括至少一个开关元件和组合以选择性地提供电压源的至少一个能量存储装置。 链式转换器连接到AC端子，并且每个支路部分的开关元件可切换，以使链式转换器与相应的直流端子进行电路切换。 电压源包括控制单元，其控制链节转换器的每个模块中的肢体部分的开关元件和开关元件的切换。
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公开(公告)号：US10074988B2
公开(公告)日：2018-09-11
申请号：US15101134
申请日：2014-12-05
发明人： Colin Oates
CPC分类号： H02J3/36 , G01R31/028 , G01R31/40 , H02M1/32 , H02M5/458 , H02M7/483 , H02M2001/0025 , H02M2007/4835
摘要： This application relates to control methods and apparatus for a voltage source converter comprising a plurality of energy storage devices which can be selectively connected into an arm of the voltage source converter. The apparatus is configured to generate a modelled value of the voltage of an energy storage device of the voltage source converter based on one or more model parameters and the operation of the voltage source converter, receive the modelled value and also a measured value of the voltage of at least one energy storage device, determine an error between the modelled value and the measured value, and generate a model control signal for adapting the model based on said error so that the modelled value substantially corresponds to the measured value. Control circuitry is responsive to said model module and/or said model adaptation module to control operation of the voltage source converter.
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公开(公告)号：US09768710B2
公开(公告)日：2017-09-19
申请号：US14760183
申请日：2013-12-06
CPC分类号： H02M7/217 , H02M7/219 , H02M7/483 , H02M7/493 , H02M2007/4835
摘要： A voltage source converter (30) comprises a converter limb (36), having primary and secondary limbs connected in parallel between first and second DC terminals (32,34), the primary limb element including first and second primary limb element portions (38,40) separated by a third terminal (42), being connectable to an AC electrical network (46), each primary limb element portion (38,40) including at least one primary switching element (50), the secondary limb including first and second secondary limb element portions (52,54) separated by a junction (56), and including a DC side chain-link converter (58), and a connection interconnecting the third terminal (42) and the junction (56) wherein the voltage source converter (30) further includes a control unit (62) controlling the switching of the respective switching elements.
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公开(公告)号：US09755550B2
公开(公告)日：2017-09-05
申请号：US14888692
申请日：2014-04-03
IPC分类号： H02M1/38 , H02M7/483 , H02M7/219 , H02M1/12 , H02J3/36 , H02M7/68 , H02J5/00 , H02M1/08 , H02M1/00
CPC分类号： H02M7/68 , H02J3/36 , H02J5/00 , H02M1/083 , H02M1/12 , H02M1/38 , H02M7/219 , H02M7/483 , H02M2001/0058 , H02M2007/4835
摘要： A voltage source converter includes a converter limb having limb portions separated by an AC terminal and extending between DC terminals, each limb portion including a primary switching element to switch the limb portion into and out of circuit. The converter further includes an auxiliary limb. The primary switching element of each limb portion is switchable to switch the auxiliary limb into and out of circuit with the corresponding limb portion. The converter further includes a control unit to, in one mode, inject a circulation current that flows in one direction in one of the limb portions and minimize a current flowing in the opposite direction in that limb portion. Each primary switching element switches the respective limb portion into or out of circuit following the minimization of the limb portion current by the circulation current.
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公开(公告)号：US10236785B2
公开(公告)日：2019-03-19
申请号：US15035660
申请日：2014-11-07
发明人： Colin Oates
摘要： This application relates to methods and apparatus for control apparatus of a voltage source converter for direct current transmission of electrical power over a transmission line. The control apparatus comprises regulation control for generating a regulation signal for the converter to regulate an electrical parameter of the voltage source converter, such as voltage or power, so as to regulate power transmission over the transmission line. The regulation signal is based on the difference between a measured value of said parameter and a reference value of said parameter, as may be supplied from a reference control block and may be derived from a demand signal indicating the voltage or power demand. The apparatus also includes damping control configured to generate a damping signal for modulating said regulation signal to reduce the effect of resonance within the bandwidth of control of the converter. The damping signal is generated as a function of a measured voltage or current of the transmission line and an impedance value for the transmission line. The damping signal may be high-pass filtered so as to have no substantial impact on steady state operation.
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7.发明申请OBSERVER BASED MONITORING AND CONTROL OF SUBMODULES IN MODULAR MULTILEVEL CONVERTER 审中-公开基于观察者的模块化多模转换器中子模块的监控公开(公告)号：US20160308360A1
公开(公告)日：2016-10-20
申请号：US15101134
申请日：2014-12-05
发明人： Colin Oates
CPC分类号： H02J3/36 , G01R31/028 , G01R31/40 , H02M1/32 , H02M5/458 , H02M7/483 , H02M2001/0025 , H02M2007/4835
摘要： This application relates to control methods and apparatus for a voltage source converter comprising a plurality of energy storage devices which can be selectively connected into an arm of the voltage source converter. The apparatus is configured to generate a modelled value of the voltage of an energy storage device of the voltage source converter based on one or more model parameters and the operation of the voltage source converter, receive the modelled value and also a measured value of the voltage of at least one energy storage device, determine an error between the modelled value and the measured value, and generate a model control signal for adapting the model based on said error so that the modelled value substantially corresponds to the measured value. Control circuitry is responsive to said model module and/or said model adaptation module to control operation of the voltage source converter.
摘要翻译： 本申请涉及一种用于电压源转换器的控制方法和装置，包括可以选择性地连接到电压源转换器的臂中的多个能量存储装置。 该装置被配置为基于一个或多个模型参数和电压源转换器的操作来生成电压源转换器的能量存储装置的电压的建模值，接收建模值以及电压的测量值 至少一个能量存储装置，确定建模值和测量值之间的误差，并且基于所述误差生成用于适应模型的模型控制信号，使得建模值基本上对应于测量值。 控制电路响应于所述模型模块和/或所述模型适配模块来控制电压源转换器的操作。
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公开(公告)号：US20160285378A1
公开(公告)日：2016-09-29
申请号：US15035660
申请日：2014-11-07
发明人： Colin Oates
摘要： This application relates to methods and apparatus for control apparatus of a voltage source converter (401) for direct current transmission of electrical power over a transmission line (402). The control apparatus comprises regulation control (403) for generating a regulation signal for the converter to regulate an electrical parameter of the voltage source converter, such as voltage or power, so as to regulate power transmission over the transmission line. The regulation signal is based on the difference between a measured value of said parameter and a reference value of said parameter, as may be supplied from a reference control block (404) and may be derived from a demand signal indicating the voltage or power demand. The apparatus also includes damping control (405) configured to generate a damping signal for modulating said regulation signal to reduce the effect of resonance within the bandwidth of control of the converter. The damping signal is generated as a function of a measured voltage or current of the transmission line and an impedance value for the transmission line. The damping signal may be high-pass filtered (407) so as to have no substantial impact on steady state operation.
摘要翻译： 本申请涉及用于通过传输线（402）直流电力传输电压源转换器（401）的控制装置的方法和装置。 控制装置包括用于产生用于转换器的调节信号以调节诸如电压或功率的电压源转换器的电参数的调节控制（403），以便调节传输线上的功率传输。 调节信号基于所述参数的测量值和所述参数的参考值之间的差异，可以从参考控制块（404）提供，并且可以从指示电压或功率需求的需求信号导出。 该装置还包括阻尼控制（405），其被配置为产生用于调制所述调节信号的阻尼信号，以减小在转换器的控制带宽内的谐振效应。 作为传输线的测量电压或电流以及传输线的阻抗值的函数产生阻尼信号。 阻尼信号可以被高通滤波（407），从而对稳态操作没有实质的影响。
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公开(公告)号：US20150357931A1
公开(公告)日：2015-12-10
申请号：US14760183
申请日：2013-12-06
CPC分类号： H02M7/217 , H02M7/219 , H02M7/483 , H02M7/493 , H02M2007/4835
摘要： A voltage source converter (30) comprises a converter limb (36), having primary and secondary limbs connected in parallel between first and second DC terminals (32,34), the primary limb element including first and second primary limb element portions (38,40) separated by a third terminal (42), being connectable to an AC electrical network (46), each primary limb element portion (38,40) including at least one primary switching element (50), the secondary limb including first and second secondary limb element portions (52,54) separated by a junction (56), and including a DC side chain-link converter (58), and a connection interconnecting the third terminal (42) and the junction (56) wherein the voltage source converter (30) further includes a control unit (62) controlling the switching of the respective switching elements.
摘要翻译： 电压源转换器（30）包括转换器臂（36），其具有并联连接在第一和第二DC端子（32,34）之间的主臂和辅助臂，所述主肢元件包括第一和第二主肢元件部分（38， 40），其由第三端子（42）分开，可连接到AC电网（46），每个初级肢体元件部分（38,40）包括至少一个主开关元件（50），所述辅助臂包括第一和第二 由结（56）分隔并且包括直流侧链节转换器（58）和由第三端子（42）和接点（56）互连的连接的次级肢体元件部分（52,54），其中电压源 转换器（30）还包括控制各开关元件的切换的控制单元（62）。
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