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1. 发明专利

JP2013135590A Permanent magnet synchronous machine, and driving device and driving method for the same 有权
标题翻译：永磁同步电机及其驱动装置及其驱动方法
公开(公告)号：JP2013135590A
公开(公告)日：2013-07-08
申请号：JP2011286419
申请日：2011-12-27
申请人： Kawasaki Heavy Ind Ltd , 川崎重工業株式会社
发明人： SAWADA MASASHI , TAMIYA TOMOAKI , SHINDO YUJI
IPC分类号： H02P27/06 , H02K7/09 , H02K21/14
摘要： PROBLEM TO BE SOLVED: To support a rotor without using a bearing in a permanent magnet synchronous machine.SOLUTION: A motor 4 comprises: a stator 21; a rotor 23; and a position sensor 5 which detects a position of a rotational axis of the rotor 23 with respect to a predetermined reference position. A controller 3: receives a supply of a torque current command value representing magnitude of a torque current to generate a torque for rotating the rotor 23; generates a support current command value representing the magnitude of a support current which generate force to support the rotational axis of the rotor 23 at the reference position on the basis of a distance between the reference position and the position of the rotational axis of the rotor 23; controls a power conversion device 1 in a manner that applies a current, which is a sum of the torque current and the support current, to a first coil group; controls another power conversion device 2 in a manner that applies a current, which is a balance that deducts the support current from the torque current, to a second coil group; and concurrently rotates and supports the rotor 23 with magnet fields generated by the first and the second coil groups.
摘要翻译：要解决的问题：在永磁同步电机中不使用轴承支撑转子。解决方案：电机4包括：定子21; 转子23; 以及位置传感器5，其检测转子23相对于预定基准位置的旋转轴线的位置。控制器3：接收表示转矩电流的大小的转矩电流指令值的供给，生成用于使转子23旋转的转矩; 基于基准位置和转子23的旋转轴线的位置之间的距离，生成表示支撑电流的大小的支撑电流指令值，该支撑电流产生力以支撑转子23在基准位置的旋转轴线的力 ; 以向第一线圈组施加作为转矩电流和支撑电流之和的电流的方式来控制电力转换装置1; 控制另一个电力转换装置2，以将从转矩电流减去支持电流的平衡的电流施加到第二线圈组的方式; 同时由第一和第二线圈组产生的磁场同时转动和支撑转子23。

2. 发明专利

JP2010071304A Thrust magnetic bearing device 有权
标题翻译：扭转磁力轴承装置
公开(公告)号：JP2010071304A
公开(公告)日：2010-04-02
申请号：JP2008236122
申请日：2008-09-16
申请人： Kawasaki Heavy Ind Ltd , 川崎重工業株式会社
发明人： HASHIMOTO MASAYUKI , SHINDO YUJI , KURODA MASANORI , SAWADA MASASHI , NAKAJIMA KENICHI , YAMAUCHI MASASHI , KINOSHITA YUJI
IPC分类号： F16C32/04
CPC分类号： F16C32/0476 , F16C32/0461
摘要： PROBLEM TO BE SOLVED: To provide a thrust magnetic bearing device in which electromagnetic force responsiveness can be improved.
SOLUTION: This thrust magnetic bearing device includes: a rotary disk 3 fixed to a rotary shaft 2 coaxially with the rotary shaft 2; and a pair of electromagnets 21 and 22 having a pair of ring-shaped iron cores 4a and 4b respectively arranged on both sides of the rotary disk 3 coaxially with the rotary shaft 2 and arranging a ring-shaped groove 40 coaxially with the rotary shaft 2 so as to have an opening on an opposed surface with the rotary disk 3 and storing coils 5a and 5b wound on the ring-shaped groove 40 of the respective iron cores 4a and 4b so as to revolve around the axis of the rotary shaft 2. The thrust magnetic bearing device is constituted so that a position in the axial direction of the rotary shaft 2 is adjusted by controlling an electric current flowing to the coils 5a and 5b of the pair of electromagnets. The iron cores 4a and 4b are provided with a thin groove 41 over the total length of a part facing the coils 5a and 5b when seeing through from the peripheral direction of the coils on an inner surface of the ring-shaped groove 40.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供可以提高电磁力响应性的推力磁轴承装置。解决方案：该推力磁轴承装置包括：与旋转轴2同轴地固定到旋转轴2的旋转盘3; 以及一对电磁体21和22，其具有分别与旋转轴2同轴地布置在旋转盘3的两侧上的一对环形铁芯4a和4b，并且与旋转轴2同轴地布置环形槽40 在旋转盘3的相对表面上具有开口，并且卷绕在各个铁芯4a和4b的环形槽40上的存储线圈5a和5b围绕旋转轴2的轴线旋转。推力磁轴承装置构成为通过控制流向一对电磁体的线圈5a和5b的电流来调节旋转轴2的轴向位置。铁芯4a和4b在环形槽40的内表面上从线圈的周向观察时，在面向线圈5a和5b的部分的总长度上设置有薄槽41。 >版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2007267477A Inverter control device and motor control system using the same 有权
标题翻译：逆变器控制装置和使用该装置的电动机控制系统
公开(公告)号：JP2007267477A
公开(公告)日：2007-10-11
申请号：JP2006087163
申请日：2006-03-28
申请人： Kawasaki Heavy Ind Ltd , 川崎重工業株式会社
发明人： SAWADA MASASHI , SHINDO YUJI , MATSUO KAZUYA , KURODA MASANORI , HASHIMOTO MASAYUKI , KAWAMURA MASAHIDE , OKADA KATSUHIRO , NISHIMURA TETSUO
IPC分类号： H02M7/48 , H02P21/00 , H02P27/04
摘要： PROBLEM TO BE SOLVED: To provide an inverter control device and a motor control system using this device capable of reducing output waveform distortion of an inverter without increasing the number of switching times. SOLUTION: The inverter control device 1 is provided with a modulation rate value operation means 2 that operates a modulation rate value of a PWM command value, a carrier signal generation means 12, and a PWM signal generation means 11. The modulation rate value operation means 2 calculates a first modulation rate value and a second modulation rate value as the modulation rate values. The PWM signal generation means 11 generates a PWM signal, in which pulses having the width consisting of the portions proportional to the first modulation rate value and those proportional to the second modulation rate value are arrayed in the period corresponding to the period of triangular waves, by comparing the first modulation rate value and the second modulation rate value each with the portion having positive inclination and the portion having negative inclination of the triangular waves. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种使用该装置的逆变器控制装置和电动机控制系统，其能够在不增加开关次数的情况下减少逆变器的输出波形失真。解决方案：逆变器控制装置1设置有操作PWM指令值的调制率值的调制率值操作装置2，载波信号产生装置12和PWM信号产生装置11.调制速率值操作装置2计算第一调制率值和第二调制率值作为调制率值。 PWM信号产生装置11产生PWM信号，其中具有由与第一调制速率值成比例的部分和与第二调制速率值成比例的部分构成的宽度的脉冲在对应于三角波周期的周期中排列，通过比较具有正倾斜度的部分和具有三角波的负倾斜的部分的第一调制率值和第二调制率值。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2007068345A Control unit of synchronous machine 有权
标题翻译：同步机控制单元
公开(公告)号：JP2007068345A
公开(公告)日：2007-03-15
申请号：JP2005252299
申请日：2005-08-31
申请人： Kawasaki Heavy Ind Ltd , 川崎重工業株式会社
发明人： SAWADA MASASHI , SHINDO YUJI , OGURA KAZUKI
IPC分类号： H02P6/16 , H02P9/00 , H02P9/48
摘要： PROBLEM TO BE SOLVED: To provide a control unit of a synchronous machine that can prevent the occurrence of an overcurrent, even when the control of the synchronous machine is started from a state that a rotor is rotating. SOLUTION: A dead time dw of an inverter circuit 22 during a rough estimation period, an initial dead time d0 in particular, is set wider than the dead time dn of the inverter circuit 22 during a normal estimation period. Thereby, a current that flows from the inverter circuit 22 to a synchronous motor 21 can be reduced during the initial period at the start of the control. Therefore, becoming an overcurrent can be controlled even if the estimation during the initial period is not accurate. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：即使当从转子旋转的状态开始同步电机的控制时，提供能够防止发生过电流的同步电机的控制单元。解决方案：在粗估计期间，逆变器电路22的死区时间dw特别地将初始死区时间d0设定为比正常估计周期期间逆变器电路22的死区时间dn宽。由此，能够在开始控制的初始期间减少从逆变器电路22流向同步电动机21的电流。因此，即使在初始期间的估计不准确，也可以控制成为过电流。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2011125106A Electric motor 审中-公开
标题翻译：电动马达
公开(公告)号：JP2011125106A
公开(公告)日：2011-06-23
申请号：JP2009279352
申请日：2009-12-09
申请人： Kawasaki Heavy Ind Ltd , 川崎重工業株式会社
发明人： HASHIMOTO MASAYUKI , SHINDO YUJI , KURODA MASANORI , SAWADA MASASHI , KINOSHITA YUJI
IPC分类号： H02K1/27 , H02K1/22 , H02K21/16
摘要： PROBLEM TO BE SOLVED: To provide an electric motor which can be readily manufactured, while making the eddy current loss generated in a rotor reduced. SOLUTION: The electric motor 1A includes a rotor 4 including a rotor shaft 2; a high electrical conductivity body 6A, which is arranged at the external peripheral face of the rotor shaft 2 and has conductivity higher than that of the rotor shaft 2 and a permanent magnet 3, arranged outside the high-conductivity body 6A in the radial direction of the rotor shaft 2; and an armature 5, including an armature core 9 which has a cylindrical shape and in which a plurality of slots 8 are arranged on the internal peripheral face which the rotor 4A penetrates so as to extend in the axial P direction and an armature winding 10 wound around the plurality of slots 8. The high electrical conductivity body 6A is divided into the circumferential direction of the rotor shaft 2. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供可以容易地制造的电动机，同时使转子中产生的涡流损耗减小。解决方案：电动机1A包括转子4，转子4包括转子轴2; 布置在转子轴2的外周面上并且具有高于转子轴2的导电率的高导电性体6A和设置在高导电性体6A的外侧的永久磁铁3的径向转子轴2; 以及电枢5，其包括具有圆筒形的电枢铁芯9，其中多个槽8布置在转子4A沿轴向P方向穿过的内周面上，并且缠绕的电枢绕组10 围绕多个槽8.高导电体6A被分成转子轴2的圆周方向。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2012143045A Control device of synchronous motor, and control device of synchronous generator 有权
标题翻译：同步电动机的控制装置和同步发电机的控制装置
公开(公告)号：JP2012143045A
公开(公告)日：2012-07-26
申请号：JP2010292604
申请日：2010-12-28
申请人： Kawasaki Heavy Ind Ltd , 川崎重工業株式会社
发明人： SAWADA MASASHI , SUGIMOTO KAZUSHIGE , SUZUKI HIROKAZU , MIYAKE NAOKI , YAMAMOTO HIROYOSHI
IPC分类号： H02P6/20 , H02P9/08
摘要： PROBLEM TO BE SOLVED: To provide a control device of a synchronous machine capable of preventing occurrence of an overcurrent when start control is started from the state in which a rotator of the synchronous machine is rotating.SOLUTION: The control device of a synchronous generator rectifies an AC power supplied from a synchronous generator by using a converter circuit, and then outputs DC voltage to a load after rectification. Here, a gate signal is generated for the converter circuit, to control the rectification of the AC power which is generated by the synchronous generator. A current that flows from the synchronous generator to the converter circuit is detected. The angle of a magnetic pole of the synchronous generator is roughly estimated based on the detected current until the DC voltage comes to be a predetermined value or higher. Based on the angle of magnetic pole that has been roughly estimated, an initial value of an output voltage of the converter circuit is decided, and then the sensorless control of the converter circuit is started.
摘要翻译：要解决的问题：提供一种同步电机的控制装置，其能够在从同步电机的旋转体旋转的状态开始启动控制时防止发生过电流。
解决方案：同步发电机的控制装置通过使用转换器电路对由同步发电机提供的交流电进行整流，然后在整流后向负载输出直流电压。这里，为转换器电路生成栅极信号，以控制由同步发电机产生的交流电的整流。检测从同步发生器流向转换器电路的电流。基于直到直流电压达到预定值以上的检测电流来大致估计同步发电机的磁极的角度。基于大致估计的磁极的角度，决定转换器电路的输出电压的初始值，然后开始转换器电路的无传感器控制。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2009244124A Position sensor apparatus for magnetic bearing and magnetic bearing apparatus 有权
标题翻译：磁性轴承和磁性轴承装置的位置传感器装置
公开(公告)号：JP2009244124A
公开(公告)日：2009-10-22
申请号：JP2008091459
申请日：2008-03-31
申请人： Kawasaki Heavy Ind Ltd , 川崎重工業株式会社
发明人： KURODA MASANORI , SHINDO YUJI , SAWADA MASASHI , HASHIMOTO MASAYUKI , NISHIMURA TETSUO , AOTA TAKEHIRO , KINOSHITA YUJI
IPC分类号： G01D5/20 , F16C32/04 , F16C41/00
CPC分类号： F16C32/0446 , F16C32/0489
摘要： PROBLEM TO BE SOLVED: To make a position sensor apparatus compact and improve the sensitivity of a position sensor in thrust directions.
SOLUTION: The position sensor apparatus is provided with stators and a rotor. The stators have four groups of teeth in each layered steel plate for every 90 degrees and are formed by displacing and superposing three layered steel plates made by winding a sensor coil on each of the teeth. The rotor is a ring-like layered steel plate arranged at a prescribed interval inside the stators and is opposed to first-layer and third-layer stators. Changes in the inductance of each sensor coil at positions intersecting with each other of a second-layer stator are detected on the basis of two electric potential differences generated in first and second bridge circuits constituted in such a way as to include each inductance to measure displacements in radial directions. Changes in the inductance of each sensor coil of the first-layer and third-layer stators are detected on the basis of an electric potential difference generated in a third bridge circuit constituted in such a way as to include each inductance to form a slip sensor and measure displacements in thrust directions.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：使位置传感器装置紧凑并提高位置传感器在推力方向上的灵敏度。
解决方案：位置传感器装置设有定子和转子。定子在每个层叠钢板中每90度具有四组齿，并且通过将通过将传感器线圈缠绕在每个齿上而制成的三层钢板来形成。转子是在定子内以规定间隔排列的与第一层和第三层定子相对的环状层状钢板。基于在第一和第二桥接电路中产生的两个电位差来检测每个传感器线圈在与第二层定子相互交叉的位置处的电感的变化，所述第一和第二桥接电路以包括每个电感以测量位移的方式在径向方向。基于在第三桥式电路中产生的电位差来检测第一层和第三层定子的每个传感器线圈的电感的变化，该第三桥式电路构成为包括每个电感以形成滑动传感器，测量推力方向的位移。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2007244067A Cooling structure of rotating machine 有权
标题翻译：旋转机冷却结构
公开(公告)号：JP2007244067A
公开(公告)日：2007-09-20
申请号：JP2006061148
申请日：2006-03-07
申请人： Kawasaki Heavy Ind Ltd , 川崎重工業株式会社
发明人： KURODA MASANORI , SHINDO YUJI , SAWADA MASASHI , HASHIMOTO MASAYUKI , NISHIMURA TETSUO , AOTA TAKEHIRO , KINOSHITA YUJI
IPC分类号： H02K9/08
摘要： PROBLEM TO BE SOLVED: To provide a cooling structure of a rotating machine that can be improved in the cooling efficiency of a rotor and a stator core by reducing a wind loss or the like.
SOLUTION: The cooling structure of the rotating machine is constituted such that: the cylindrical stator core 5 is divided into a plurality of divided pieces in the rotative axial direction of the rotor 1; slits 8 are formed between and among the plurality of divided pieces; a gas flow-in passage composed of partitioned spaces formed by arranging a plurality of partitioning members for partitioning the inside of the slits 8 so as to extend in the radial direction, and for making first cooling gas flow toward the direction at the internal peripheral face side from the external peripheral face side of the cylindrical stator core 5, and a gas flow-out passage for making the first cooling gas flow toward the direction at the external peripheral face side from the internal peripheral face side of the cylindrical stator core 5 are alternately arranged in each slit 8; and the substantially whole of the first cooling gas flowing to the surface of the rotor 1 from the gas flow-in passage flows toward the same direction as the rotative direction of the rotor 1 around the rotor 1, and flows into the gas flow-out passage that is adjacent to the gas flow-in passage.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以通过减少风力损失等来改善转子和定子铁芯的冷却效率的旋转机械的冷却结构。解决方案：旋转机器的冷却结构构成为：圆柱形定子铁芯5在转子1的旋转轴向上分成多个分割片; 在多个分割片之间形成狭缝8; 气体流入通路，其由分隔空间构成的分隔空间形成，所述分隔空间通过设置用于分隔狭缝8的内部而沿径向延伸的多个分隔构件，并且使第一冷却气体朝向内周面方向从圆筒状的定子铁心5的外周面侧向外侧面侧流动的第一冷却气体的流出通道，交替布置在每个狭缝8中; 并且从气体流入通路流向转子1的表面的大致全部的第一冷却气体朝与转子1的转子1的旋转方向相同的方向流动而流入气体流出与气体流入通道相邻的通道。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2012139042A Saturable reactor control circuit for magnetic amplifier 有权
标题翻译：电磁放大器的可变电抗器控制电路
公开(公告)号：JP2012139042A
公开(公告)日：2012-07-19
申请号：JP2010289991
申请日：2010-12-27
申请人： Kawasaki Heavy Ind Ltd , 川崎重工業株式会社
发明人： YOSHIHARA TAKEHIRO , OTSUBO MITSUYUKI , SAWADA MASASHI , SHINDO YUJI
IPC分类号： H02M7/06
摘要： PROBLEM TO BE SOLVED: To provide a small-sized magnetic amplifier capable of reducing a loss without complicating a circuit scale configuration.SOLUTION: When a saturable reactor L1 is turned off, a current flows in an auxiliary coil N2 by commutation operation. At this time, although a transistor Tr is in an off state, the current of the auxiliary coil N2 flows into a parasitic capacitance of the transistor Tr via a rectifier diode D3 to raise a gate potential of the transistor Tr. As a result, the transistor Tr is turned on, and a current I flows in a drain of the transistor Tr, thereby, a source potential of the transistor Tr is raised by a resistance R3 connected to a source of the transistor Tr when a drain current flows. On the other hand, the gate potential of the transistor Tr is held to a Zener voltage by a Zener diode Zd connected to a gate of the transistor Tr. Accordingly, the rise in the source potential reduces a gate-source voltage Vgs of the transistor Tr to turn off the transistor Tr and reduce the drain current.
摘要翻译：要解决的问题：提供一种能够减少损耗而不使电路规模配置复杂化的小型磁放大器。解决方案：当可饱和电抗器L1关闭时，电流通过换向操作在辅助线圈N2中流动。此时，虽然晶体管Tr处于截止状态，但是辅助线圈N2的电流经由整流二极管D3流入晶体管Tr的寄生电容，以提高晶体管Tr的栅极电位。结果，晶体管Tr导通，并且电流I流过晶体管Tr的漏极，由此当漏极连接到晶体管Tr的源极时，晶体管Tr的源极电位被连接到晶体管Tr的源极的电阻R3上升电流。另一方面，晶体管Tr的栅极电位通过连接到晶体管Tr的栅极的齐纳二极管Zd保持为齐纳电压。因此，源极电位的上升降低了晶体管Tr的栅极 - 源极电压Vgs，以截止晶体管Tr并减小漏极电流。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2009247110A Inverter controller 有权
标题翻译：逆变器控制器
公开(公告)号：JP2009247110A
公开(公告)日：2009-10-22
申请号：JP2008090536
申请日：2008-03-31
申请人： Kawasaki Heavy Ind Ltd , 川崎重工業株式会社
发明人： SAWADA MASASHI , SHINDO YUJI , MATSUO KAZUYA , KURODA MASANORI , KAWAMURA MASAHIDE
IPC分类号： H02P27/08 , H02P27/06
摘要： PROBLEM TO BE SOLVED: To provide an inverter controller capable of preventing a groan phenomenon without need for enlarging an output filter.
SOLUTION: The inverter controller includes: a carrier signal generation part 7 for generating a carrier signal based on output frequency related information; a PWM modulation ratio calculation part 15 for calculating a modulation ratio based on a rotational speed command of a motor input from the outside and output frequency related-information; and a PWM signal generation part 10 for generating a PWM signal by comparing the modulation ratio calculated by the PWM modulation ratio calculation part 15 with a carrier signal generated by the carrier signal generation part 7. The carrier signal generation part 7 changes a frequency of a carrier signal relative to a change in a fundamental wave frequency of an inverter output based on the output related information so that the frequency of the carrier signal deviates from a (6 m±1) order harmonic frequency of an inverter output by a predetermined value.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够防止呻吟现象而不需要扩大输出滤波器的逆变器控制器。解决方案：逆变器控制器包括：载波信号产生部分7，用于基于输出频率相关信息产生载波信号; PWM调制比计算部15，用于基于从外部输入的电动机的转速指令和输出频率相关信息来计算调制率; 以及PWM信号生成部10，用于通过将由PWM调制比计算部15计算的调制比与由载波信号生成部7生成的载波信号进行比较来生成PWM信号。载波信号生成部7将频率载波信号相对于逆变器输出的基波频率的变化，基于输出相关信息，使得载波信号的频率偏离逆变器输出的（6m±1）次谐波频率预定值。版权所有（C）2010，JPO＆INPIT

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