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1. 发明授权

EP2689527B1 A METHOD AND APPARATUS FOR CONTROL OF ELECTRICAL MACHINES 有权
公开(公告)号：EP2689527B1
公开(公告)日：2019-02-06
申请号：EP12715553.9
申请日：2012-03-26
申请人： Technelec Ltd
发明人： POLLOCK, Charles , POLLOCK, Helen
IPC分类号： H02P21/04 , H02P25/08

2. 发明公开

EP3052912A1 GALVANICALLY ISOLATED MONITORING CIRCUIT 审中-公开
标题翻译：电气隔离监控电路
公开(公告)号：EP3052912A1
公开(公告)日：2016-08-10
申请号：EP14781633.4
申请日：2014-10-01
申请人： Technelec Ltd
发明人： POLLOCK, Charles , POLLOCK, Helen
IPC分类号： G01K1/02
CPC分类号： G01K7/22 , G01K7/20 , G01K7/24 , G01K15/005 , G01R27/02
摘要： There is described a system for measuring an environmental parameter such as temperature experienced by a resistive component such as a thermistor (107) in a galvanically isolated circuit, or for measuring the voltage developed by a component. The system comprises a measurement circuit (1) comprising a voltage pulse generator (114). The measurement circuit is inductively coupled to the galvanically isolated circuit by a flyback transformer (101) such that a stable voltage (V104) across a first capacitor (114) in the measurement circuit after many voltage pulses is proportional to a stable voltage (V106) across a second capacitor (106) connected across the component in the galvanically isolated circuit. The stable voltages across the first and second capacitors are adjustable by adjusting a duty cycle of the voltage pulses.

3. 发明公开

EP2689526A2 DESIGN IMPROVEMENTS FOR FLUX SWITCHING MACHINES 有权
标题翻译： VERBESSERTEENTWÜRFEFÜRFLUSSSCHALTMASCHINEN
公开(公告)号：EP2689526A2
公开(公告)日：2014-01-29
申请号：EP12717809.3
申请日：2012-03-26
申请人： Technelec Ltd
发明人： POLLOCK, Charles , POLLOCK, Helen
IPC分类号： H02P6/00 , H02P25/08 , H02K19/06
CPC分类号： H02K1/22 , H02K19/06 , H02P6/26 , H02P25/08
摘要： Disclosed herein is a design for flux switching machines with one or more armature windings which can deliver controlled torque, in either selected direction on start up, without the use of a mechanical position sensor. Flux switching machines without sensors can operate equally well in either direction. The invention discloses design features for such machines which improves the torque profile of the motor with angle. In three phase machines this delivers higher torque and lower ripple torque. In single phase flux switching machines the invention allows the rotor to be placed in a position where maximum torque can be delivered in either direction by selection of either positive or negative armature current. Rotor slotting is introduced to create a path of low permeability across a rotor tooth with minimal impact on the normal torque producing flux paths. Asymmetry of stator slots is used to further create a stable rotor position when energised by predominantly field means or armature means. Starting of the rotor from this stable position can be achieved in either direction. The method is suitable for starting permanent magnet flux switching motors. The invention results in low cost single phase motors which can start and run in either direction and three phase flux switching motors with improved performance over the prior art.
摘要翻译：本文公开了一种具有一个或多个电枢绕组的磁通切换机的设计，该电枢绕组可以在启动时沿选择的方向输送受控转矩，而不使用机械位置传感器。没有传感器的磁通切换机可以在任一方向上同等运行。本发明公开了这样的机器的设计特征，其改进了电动机的转角分布。在三相机器中，这提供更高的扭矩和更低的纹波扭矩。在单相磁通切换机中，本发明允许转子被放置在可以通过选择正或负电枢电流在任一方向上输送最大转矩的位置。引入转子开槽以在转子齿上形成低磁导率的路径，同时对产生通常路径的正常转矩影响最小。定子槽的不对称性用于在主要由现场装置或电枢装置通电时进一步产生稳定的转子位置。从该稳定位置开始转子可以在任一方向上实现。该方法适用于启动永磁通量开关电机。本发明导致可以在任一方向上启动和运行的低成本单相电动机和具有比现有技术更好性能的三相磁通切换电动机。

4. 发明公开

EP2359467A2 CONTROLLER FOR ELECTRICAL MACHINES 有权
标题翻译：控制电机用
公开(公告)号：EP2359467A2
公开(公告)日：2011-08-24
申请号：EP09755893.6
申请日：2009-11-17
申请人： Technelec Ltd
发明人： POLLOCK, Charles , POLLOCK, Helen
IPC分类号： H02P6/18 , H02P23/12 , H02P23/14
CPC分类号： H02P6/18 , H02P21/18 , H02P21/24
摘要： The present invention relates to control of electrical machines and in particular, though not exclusively, to control of synchronous machines such as hybrid stepping motors, flux switching machines and brushless permanent magnet motors and generators. A sensorless control system for an electrical machine is provided comprising a rotor, a stator having one or more phase windings for generating a rotating stator magnetic field, the system comprising detection means for monitoring the currents in the phase windings providing a real component I
s_real along a real axis at a known angle in line with a rotating reference frame and an imaginary component I
s_imag orthogonal to the real component I
s_real , calculating means for determining a value of the real component E
s_real of the rotational emf along an axis at a known angle in line with a rotating reference frame and an imaginary component (E
s_imag ) orthogonal to the real component (E
s_real ), estimating means for estimating an angular position of the rotational emf vector using at least one of the estimated orthogonal components of the emf, error means for determining an angular error signal indicative of the deviation of the estimated angular position from a desired position, and synchronising means for controlling the machine such that the error signal tends towards zero.

5. 发明公开

EP3837760A1 POSITION OBSERVER FOR ELECTRICAL MACHINES 审中-公开
公开(公告)号：EP3837760A1
公开(公告)日：2021-06-23
申请号：EP19758470.9
申请日：2019-08-15
申请人： Technelec Ltd
发明人： POLLOCK (DR), Charles , POLLOCK (DR), Helen
IPC分类号： H02P6/18 , H02P6/182 , H02P21/00 , H02P21/14 , H02P21/24 , H02P25/03 , H02P6/185

6. 发明授权

EP2232696B1 CONTROL OF ELECTRICAL MACHINES 有权
标题翻译：控制电气设备
公开(公告)号：EP2232696B1
公开(公告)日：2013-01-23
申请号：EP08854334.3
申请日：2008-12-01
申请人： Technelec Ltd
发明人： POLLOCK, Charles , POLLOCK, Helen
IPC分类号： H02P6/10 , H02P25/08
CPC分类号： H02P6/16 , H02P6/10 , H02P25/089

7. 发明公开

EP2232696A2 CONTROL OF ELECTRICAL MACHINES 有权
标题翻译：控制电气设备
公开(公告)号：EP2232696A2
公开(公告)日：2010-09-29
申请号：EP08854334.3
申请日：2008-12-01
申请人： Technelec Ltd
发明人： POLLOCK, Charles , POLLOCK, Helen
IPC分类号： H02P6/10
CPC分类号： H02P6/16 , H02P6/10 , H02P25/089
摘要： This invention relates to the control of electrical machines and is concerned more particularly, though not exclusively, with the control of flux switching electrical machines without a mechanical shaft position sensor. An electrical machine for converting electrical energy into mechanical energy and/or mechanical energy into electrical energy, comprises a rotor having a plurality of rotor teeth; a stator having a plurality of stator teeth for rotatably receiving said rotor and having (i) at least one field magnet device for generating a first magnetomotive force between said rotor and said stator and including at least one first electrical winding, and (ii) at least one armature magnet device including at least one second electrical winding adapted to carry electrical current varying in synchronism with rotation of said rotor relative to said stator to generate a second magnetomotive force having a component transverse to said first magnetomotive force; at least one control device for controlling supply of electrical current to or from the or each said second electrical winding by applying a sequence of switching cycles wherein the electrical current in the br each said electrical winding has positive and negative conduction blocks, each of the said conduction blocks has at least two regions, including a first region and an end region; and at least one rotor position sensor device for detecting at least one electrical signal related to the rotational position of the rotor relative to the stator and induced in a respective said first or second electrical winding as a result of a current passing through a respective second or first electrical winding, wherein at least one said rotor position sensor device comprises the steps of measuring the said electrical signal during a switching cycle in the end region, and comparing the said measurement with at least one similar measurement in at least one previous switching cycle to determine if a known rotor position has been reached.

8. 发明公开

EP4113798A1 COIL STRUCTURES 审中-实审
公开(公告)号：EP4113798A1
公开(公告)日：2023-01-04
申请号：EP22170651.8
申请日：2022-04-28
申请人： Technelec Ltd
发明人： Pollock, Richard , Nicholls, James , Dackus, Peter , Cumming, Abigail
IPC分类号： H02K3/04 , H02K15/04 , H02K3/14 , H02K3/26 , H02K3/48 , B33Y80/00
摘要： A coil structure for an electromagnetic device comprising a conductor configured to provide a coil comprising one or more coil turns around a magnetic core to induce a magnetic flux in the magnetic core when in use. The conductor comprises one or more a first parts comprising a plurality of sub-conductors in parallel, and one or more second parts coupled in series with the first part(s), wherein the or each second part comprises a single sub-conductor or a lesser number of sub-conductors in parallel.

9. 发明授权

EP2689529B1 METHOD AND APPARATUS FOR CONTROLLING AN ELECTRICAL MACHINE 失效
标题翻译：用于控制电机的方法和设备
公开(公告)号：EP2689529B1
公开(公告)日：2017-10-25
申请号：EP12717808.5
申请日：2012-03-26
申请人： Technelec Ltd
发明人： POLLOCK, Charles , POLLOCK, Helen
IPC分类号： H02P23/03 , H02P21/00
CPC分类号： H02P6/205 , H02P1/04 , H02P6/182 , H02P6/21 , H02P21/0021 , H02P21/13 , H02P23/03 , H02P23/12

10. 发明公开

EP2689529A2 METHOD AND APPARATUS FOR CONTROLLING AN ELECTRICAL MACHINE 失效
标题翻译：方法和设备控制电机
公开(公告)号：EP2689529A2
公开(公告)日：2014-01-29
申请号：EP12717808.5
申请日：2012-03-26
申请人： Technelec Ltd
发明人： POLLOCK, Charles , POLLOCK, Helen
IPC分类号： H02P23/03 , H02P21/00
CPC分类号： H02P6/205 , H02P1/04 , H02P6/182 , H02P6/21 , H02P21/0021 , H02P21/13 , H02P23/03 , H02P23/12
摘要： Open loop methods are commonly used to start a motor, increasing the frequency until the EMF can be detected and a reliable transition to sensorless control can be made. It is the purpose of this invention to disclose an observer, operating during a time when open loop control is being used to drive a synchronous motor, the output of the observer being a signal, E
_I_angle , related to the angle between a rotational EMF vector and the current excitation vector, the observer determining the angle by an iterative calculation incorporating a summation term, the summation term summing the variation of the quadrature component of a rotational EMF vector relative to an estimated EMF position vector, and using the angle output of the observer to update the estimate of the rotational EMF position vector. In a further aspect of the invention the observer output signal,
E_I_angle ,can be used to determine the transition to closed loop control, when the observer output signal reaches a value indicating conditions close to pull out conditions.

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