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1. 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

2. 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

3. 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

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