公开(公告)号：US20160164402A1

公开(公告)日：2016-06-09

申请号：US14955857

申请日：2015-12-01

Applicant: Control Techniques Limited

Inventor： Colin HARGIS

IPC: H02M3/07 ,  H02P27/06 ,  H02M7/5387

CPC classification number: H02M3/07 ,  H02H7/1225 ,  H02M1/092 ,  H02M7/5387 ,  H02M2001/0006 ,  H02P27/06 ,  H03K17/74 ,  H03K17/785

Abstract: A fail-safe interface circuit arranged to provide an inverter enable input to drive an inverter, the circuit being supplied by a first voltage and comprising: a charge pump comprising a charge pump input and a charge pump output, the charge pump output being coupled to a circuit output; and a pulsed input arranged to supply pulsed power to the charge pump input; wherein the charge pump output is arranged to produce a second voltage distinct from the first voltage only when the pulsed input is supplying pulsed power to the charge pump input, and wherein the circuit output is arranged to provide the inverter enable input when the second voltage is produced at the charge pump output.

Abstract translation: 一种故障安全接口电路，被布置成提供逆变器使能输入以驱动逆变器，所述电路由第一电压提供并且包括：电荷泵，其包括电荷泵输入和电荷泵输出，所述电荷泵输出耦合到 电路输出; 以及布置成向所述电荷泵输入端提供脉冲功率的脉冲输入; 其中所述电荷泵输出被布置成仅当所述脉冲输入向所述电荷泵输入提供脉冲功率时产生与所述第一电压不同的第二电压，并且其中所述电路输出被布置成当所述第二电压为 在电荷泵输出产生。

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

IPC: H02P23/04 ,  H02P23/14

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。

公开(公告)号：US20150200624A1

公开(公告)日：2015-07-16

申请号：US14597625

申请日：2015-01-15

Applicant: Control Techniques Limited

Inventor： Colin HARGIS

IPC: H02S40/32 ,  H02M7/44

CPC classification number: H02S40/32 ,  G05F1/67 ,  H02M7/44 ,  Y02E10/58

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.

Abstract translation: 根据本公开的第一方面，提供了一种控制逆变器的功率输出的方法。 该方法包括测量逆变器的输出电流，确定输出电流和参考电流之间的差值，以及根据确定的差值来控制逆变器的参考输入电压。 在本公开的第二方面中，描述了一种用于控制逆变器的功率输出的系统。 该系统包括一个反相器，被配置为根据参考输入电压输出电流。 该系统还包括控制器，其被布置成确定输出电流和参考电流之间的差。 控制器还被布置成根据确定的差值来控制参考输入电压。 该方法可以允许对于给定的太阳辐射的功率小于其最大能力的功率来控制光伏逆变器，这可以避免光伏阵列电压升高到可以运行逆变器的水平的问题。

公开(公告)号：US20170207740A1

公开(公告)日：2017-07-20

申请号：US15478697

申请日：2017-04-04

Applicant: NIDEC CONTROL TECHNIQUES LIMITED

Inventor： Colin HARGIS

IPC: H02P23/14 ,  H02P23/04 ,  H02P27/06

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.