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公开(公告)号：EP1903667B9
公开(公告)日：2014-06-11
申请号：EP07253759.0
申请日：2007-09-21
申请人： Nidec SR Drives Ltd.
CPC分类号： H02P5/68 , H02M5/44 , H02M2001/008 , H02P25/092 , H02P29/026 , H02P29/50
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公开(公告)号：EP2688194A3
公开(公告)日：2014-05-07
申请号：EP13185637.9
申请日：2007-09-21
申请人： Nidec SR Drives Ltd.
CPC分类号： H02P5/68 , H02M5/44 , H02M2001/008 , H02P25/092 , H02P29/026 , H02P29/50
摘要： A drive system has a number of electrical machines. One machine operates as a generator supplying an output to a DC link, which in turn supplies one or more machines operating as motors to drive loads. The motors are supplied through power converters. The total capacitance of the DC link is minimised and the link kept in a stable condition by preventing it falling to a hazardous level. One embodiment prevents the phase currents adding in such a manner as to reduce the DC link voltage. Another embodiment employs freewheeling in the phase currents to prevent the DC link voltage falling below a predetermined threshold.
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公开(公告)号：EP1484834B9
公开(公告)日：2017-01-04
申请号：EP04253349.7
申请日：2004-06-04
申请人： Nidec SR Drives Ltd.
发明人： Mayes, Peter Richard
IPC分类号： H02P6/18
CPC分类号： H02P6/18
摘要： A switched reluctance drive is controlled without using a physical rotor position detector. The control method estimates the standing flux-linkage associated with the phase and uses this estimate to improve its subsequent estimate of rotor position. The method works robustly regardless of whether the current is continuous or discontinuous.
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公开(公告)号：EP2624443A3
公开(公告)日：2014-01-22
申请号：EP13166326.2
申请日：2007-12-20
申请人： Nidec SR Drives Ltd.
发明人： Mayes, Peter Richard
摘要： An electrical drive system includes an electrical machine controlled by an electronic controller (14'), which receives feedback signals (17, 18) indicative of flux in the electrical machine. The integrity of these signals is validated by setting suitable thresholds for the signals and confirming that both are present at the appropriate time.
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公开(公告)号：EP2624443B9
公开(公告)日：2017-01-25
申请号：EP13166326.2
申请日：2007-12-20
申请人： Nidec SR Drives Ltd.
发明人： Mayes, Peter Richard
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公开(公告)号：EP2624443B1
公开(公告)日：2016-11-02
申请号：EP13166326.2
申请日：2007-12-20
申请人： Nidec SR Drives Ltd.
发明人： Mayes, Peter Richard
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公开(公告)号：EP2624443A2
公开(公告)日：2013-08-07
申请号：EP13166326.2
申请日：2007-12-20
申请人： Nidec SR Drives Ltd.
发明人： Mayes, Peter Richard
摘要： An electrical drive system includes an electrical machine controlled by an electronic controller (14'), which receives feedback signals (17, 18) indicative of flux in the electrical machine. The integrity of these signals is validated by setting suitable thresholds for the signals and confirming that both are present at the appropriate time.
摘要翻译： 电驱动系统包括由电子控制器（14'）控制的电机，其接收指示电机中的通量的反馈信号（17,18）。 这些信号的完整性通过设置信号的适当阈值并确认两者都在适当的时间存在来验证。
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公开(公告)号：EP1988627B1
公开(公告)日：2018-10-24
申请号：EP08005974.4
申请日：2008-03-28
申请人： Nidec SR Drives Ltd.
摘要： A brushless electrical machine has at least one phase winding which produces magnetic flux in the machine. A controller controls the flux in the machine with reference to a demanded flux and a stabilisation signal which, in combination, enable the controller to operate in a stable manner in the presence of disturbances in the inputs or parameters of the controller. The controller is able to operate with either a hardware rotor position detector or with a sensorless position algorithm.
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公开(公告)号：EP1988627A3
公开(公告)日：2015-08-19
申请号：EP08005974.4
申请日：2008-03-28
申请人： Nidec SR Drives Ltd.
摘要： A brushless electrical machine has at least one phase winding which produces magnetic flux in the machine. A controller controls the flux in the machine with reference to a demanded flux and a stabilisation signal which, in combination, enable the controller to operate in a stable manner in the presence of disturbances in the inputs or parameters of the controller. The controller is able to operate with either a hardware rotor position detector or with a sensorless position algorithm.
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10.发明公开Operating electrical machines from a DC link 审中-公开Betrieb elektrischer Maschinen von einer Gleichstromverbindung aus
公开(公告)号：EP2688194A2
公开(公告)日：2014-01-22
申请号：EP13185637.9
申请日：2007-09-21
申请人： Nidec SR Drives Ltd.
CPC分类号： H02P5/68 , H02M5/44 , H02M2001/008 , H02P25/092 , H02P29/026 , H02P29/50
摘要： A drive system has a number of electrical machines. One machine operates as a generator supplying an output to a DC link, which in turn supplies one or more machines operating as motors to drive loads. The motors are supplied through power converters. The total capacitance of the DC link is minimised and the link kept in a stable condition by preventing it falling to a hazardous level. One embodiment prevents the phase currents adding in such a manner as to reduce the DC link voltage. Another embodiment employs freewheeling in the phase currents to prevent the DC link voltage falling below a predetermined threshold.
摘要翻译： 驱动系统具有多台电机。 一台机器作为向DC链路提供输出的发电机，该直流链路又提供一个或多个作为电动机驱动负载的机器。 电机通过电源转换器提供。 DC链路的总电容最小化，并且链路通过防止其下降到危险级别而保持在稳定状态。 一个实施例防止相位电流的增加，以减小直流母线电压。 另一个实施例在相电流中采用续流，以防止DC链路电压低于预定阈值。
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