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公开(公告)号：US09893668B2
公开(公告)日：2018-02-13
申请号：US13946541
申请日：2013-07-19
Applicant: Control Techniques Limited
Inventor： Simon David Hart , Michael Cade , Richard Mark Wain
CPC classification number: H02P27/06 , H02M7/493 , H02M2001/0003 , H02M2001/327 , H02P29/60
Abstract: Embodiments of the present invention relate to an a method, apparatus and computer program product for controlling the operation of a drive unit comprising a plurality of switching modules arranged to receive a DC electricity supply and generate an AC electricity supply for driving a load from the received DC electricity supply, the AC electricity supply being generated by the switching of the plurality of switching modules between a conducting state and a non-conducting state. The method comprises receiving one or more characteristics associated with each of the switching modules, comparing, for each switching module of the plurality of switching modules, a characteristic of the switching module with an equivalent characteristic associated with one or more other switching modules of the plurality of switching modules, and controlling a time period during which one or more of the plurality of switching modules are in the conducting state in accordance with a result of the comparison.
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公开(公告)号：US09722514B2
公开(公告)日：2017-08-01
申请号：US14246754
申请日：2014-04-07
Applicant: Control Techniques Limited
Inventor： James Frank Chmielewski
IPC: G05D23/00 , H02P3/06 , H02M1/32 , H02P3/12 , H02K9/22 , B60L1/00 , B60L1/08 , B60L3/00 , B60L7/06 , B60L11/18 , B60L15/20 , H02P3/22 , H02P29/68
CPC classification number: H02P3/06 , B60L1/003 , B60L1/08 , B60L3/0061 , B60L7/06 , B60L11/1803 , B60L15/2009 , B60L2210/30 , B60L2240/36 , B60L2240/425 , B60L2240/662 , H02K9/22 , H02M1/32 , H02P3/12 , H02P3/22 , H02P29/68 , Y02T10/645 , Y02T10/7005 , Y02T10/7241 , Y02T10/7275 , Y02T10/7291 , Y02T90/16
Abstract: There is provided a motor drive comprising: a temperature sensor arranged to sense a temperature of the drive; a braking resistor; switching means arranged when activated to cause current to flow to the braking resistor; and controlling means arranged to activate the switching means when the sensed temperature falls below a predetermined threshold. There is also provided a method of controlling a temperature of a motor drive comprising a braking resistor. The method comprising comprises: monitoring a temperature of the drive; and activating switching means to cause current to flow to the braking resistor when the monitored temperature falls below a predetermined threshold.
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公开(公告)号：US09703337B2
公开(公告)日：2017-07-11
申请号：US13886749
申请日：2013-05-03
Applicant: Control Techniques Limited
Inventor： Gareth Christopher James , Robert Gwyn Williams , Nathan Downes
CPC classification number: G06F1/206 , H02M5/458 , H02M2001/327 , H02P23/14 , H02P29/68
Abstract: A method for controlling the temperature of a component is disclosed. The component is part of a drive configured to drive an electrical machine via an electrically conductive member. The method comprises determining a value of an attribute of the electrically conductive member; configuring a model to calculate the temperature of the component, the model being configured based on the determined value of the attribute of the electrically conductive member; using the model to calculate the temperature of the component; and if the calculated temperature of the component does not meet a predetermined temperature condition, issuing a command to control the operation of the drive such that the temperature of the component is changed to meet the predetermined temperature condition.
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公开(公告)号：US09685903B2
公开(公告)日：2017-06-20
申请号：US14597625
申请日：2015-01-15
Applicant: Control Techniques Limited
Inventor： Colin Hargis
Abstract: According to a first aspect of the disclosure, there is provided a method of controlling a power output of an inverter. The method comprises measuring an output current of the inverter, determining a difference between the output current and a reference current, and controlling a reference input voltage of the inverter as a function of the determined difference. In a second aspect of the disclosure, there is described a system for controlling a power output of an inverter. The system comprises an inverter arranged to output a current as a function of a reference input voltage. The system further comprises a controller arranged to determine a difference between the output current and a reference current. The controller is further arranged to control the reference input voltage as a function of the determined difference. The method may allow for control of a photovoltaic inverter at a power less than its maximum capability for a given solar irradiation, which may avoid the problem of the photovoltaic array voltage rising above a level where the inverter can run.
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公开(公告)号：US09647592B2
公开(公告)日：2017-05-09
申请号：US14856050
申请日：2015-09-16
Applicant: Control Techniques Limited
Inventor： Colin Hargis
CPC classification number: H02P23/14 , H02P23/04 , H02P27/06 , H02P2205/03
Abstract: An electromechanical system includes an inverter drive, a component arranged during operation to generate a variable force having one or more periodic frequency components, and processing circuitry arranged to determine the power output of the inverter drive, measure a difference between the power output and a reference power output, and control an output frequency of the inverter drive as a function of the measured difference, so as to stabilize the power output during operation of the component. Other example electromechanical systems, inverter drives and methods are also disclosed.
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Patent Agency Ranking
公开(公告)号：US09618543B2
公开(公告)日：2017-04-11
申请号：US14206824
申请日：2014-03-12
Applicant: Control Techniques Limited
Inventor： Simon David Hart
CPC classification number: G01R19/0092 , G01R19/25 , H02M7/5387 , H02M2001/0009
Abstract: A method and a control system for a multiphase-phase inverter system, the control system comprising an electric current detection circuit and a processor, wherein each phase of an electrical cycle is separated into a plurality of sections, inputs from the electric current detection circuit are received, each input indicating a measured phase current, and a phase current is calculated in each section, wherein the phase current calculation in at least one of the sections is determined from a changing ratio of the value of the phase current calculated from the measured values of the other phase currents in the multiphase system and the measured value of the phase.
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47.发明授权Method and system for determining an offset between a detector and a point on a motor 有权用于确定检测器和电动机上的点之间的偏移的方法和系统公开(公告)号：US09559621B2
公开(公告)日：2017-01-31
申请号：US14736439
申请日：2015-06-11
Applicant: Control Techniques Limited
Inventor： Jürgen Fischer
CPC classification number: H02P6/16 , G01D5/2448 , G01R23/00
Abstract: The present disclosure relates to a method of determining an offset between a detector and a point on a motor, the movement of the point on the motor being impeded in at least one direction. In particular, this disclosure relates to a method of determining a commutation offset for an encoder that works in conjunction with a synchronous motor. The commutation offset is an offset between the detector and the north pole of a permanent magnet within the motor. The method comprises setting a test value for the offset, causing a displacement of the detector based on the test value and measuring that displacement. The method further comprises repeatedly increasing the test value, and causing and measuring a displacement for each so increased test value until it is determined that the test value has crossed a threshold.
Abstract translation: 本公开涉及一种确定检测器和电动机上的点之间的偏移的方法，电动机上的点的移动在至少一个方向上被阻碍。 特别地，本公开涉及一种确定与同步电动机一起工作的编码器的换向偏移的方法。 换向偏移是电机内的永磁体的检测器和北极之间的偏移。 该方法包括设置偏移的测试值，基于测试值引起检测器的位移并测量位移。 该方法还包括重复地增加测试值，并且对于每个这样增加的测试值引起和测量位移，直到确定测试值已经超过阈值。
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公开(公告)号：US09509222B2
公开(公告)日：2016-11-29
申请号：US13887851
申请日：2013-05-06
Applicant: Control Techniques Limited
Inventor： Simon David Hart , Stephen Berry , Richard Mark Wain , Dhananjay Dattatray Kapatkar , Dilesh Arvind Raut
CPC classification number: H02M3/33561 , H02M3/33569 , Y10T307/406
Abstract: The present disclosure relates to a power conversion system comprising a transformer comprising first, second, and third inductive coupling elements, a first power supply arranged to provide a voltage across the first coupling element, a second power supply arranged to provide a voltage across the second coupling element, an output arranged to receive a voltage from the third coupling element. In use, the voltage across the first coupling element and the voltage across the second coupling element are arranged to induce a voltage in the third coupling element. The system also comprises a control arrangement arranged to independently control the operation of the first and second power supplies.
Abstract translation: 本公开涉及一种功率转换系统，其包括变压器，该变压器包括第一，第二和第三感应耦合元件，布置成提供跨越第一耦合元件的电压的第一电源，布置成提供跨越第二 耦合元件，被布置为从第三耦合元件接收电压的输出。 在使用中，第一耦合元件两端的电压和第二耦合元件两端的电压被布置成在第三耦合元件中感应电压。 该系统还包括控制装置，其被布置为独立地控制第一和第二电源的操作。
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公开(公告)号：US09312667B2
公开(公告)日：2016-04-12
申请号：US14276444
申请日：2014-05-13
Applicant: Control Techniques Limited
Inventor： Charles Anthony Cachia
IPC: H02B1/052
CPC classification number: H02B1/0526 , H02B1/0523 , Y10T29/49826
Abstract: A device for locking to a DIN rail includes a shaft defining an axis of rotation and first and second rail-engaging members connected to the shaft. The rail-engaging members are each shaped to engage a DIN rail in a respective engaging position. The shaft is rotatable about the axis of rotation and thereby arranged to urge each rail-engaging member into its respective engaging position with a DIN rail positioned between the first and second rail-engaging members. Other example devices for locking to a DIN rail and methods of mounting component(s) to a DIN rail are also disclosed.
Abstract translation: 用于锁定到DIN导轨的装置包括限定旋转轴线的轴和连接到轴的第一和第二轨道接合构件。 轨道接合构件各自被成形为在相应的接合位置接合DIN轨道。 轴能够围绕旋转轴线旋转，从而布置成将每个导轨接合构件推动到其相应的接合位置，其中定位在第一和第二轨道接合构件之间的DIN轨道。 还公开了用于锁定到DIN导轨的其它示例性装置和将部件安装到DIN导轨的方法。
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公开(公告)号：US20160079902A1
公开(公告)日：2016-03-17
申请号：US14856050
申请日：2015-09-16
Applicant: Control Techniques Limited
Inventor： Colin HARGIS
CPC classification number: H02P23/14 , H02P23/04 , H02P27/06 , H02P2205/03
Abstract: An electromechanical system includes an inverter drive, a component arranged during operation to generate a variable force having one or more periodic frequency components, and processing circuitry arranged to determine the power output of the inverter drive, measure a difference between the power output and a reference power output, and control an output frequency of the inverter drive as a function of the measured difference, so as to stabilise the power output during operation of the component. Other example electromechanical systems, inverter drives and methods are also disclosed.
Abstract translation: 机电系统包括逆变器驱动器，在操作期间布置成产生具有一个或多个周期性频率分量的可变力的部件，以及布置成确定逆变器驱动器的功率输出的处理电路，测量功率输出和参考值之间的差 功率输出，并根据测量的差值控制变频器驱动器的输出频率，从而稳定组件运行期间的功率输出。 还公开了机电系统，逆变器驱动器和方法的其它示例。
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