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1. 发明专利

JP2020061864A 回転電機および回転電機セット审中-公开
公开(公告)号：JP2020061864A
公开(公告)日：2020-04-16
申请号：JP2018191693
申请日：2018-10-10
申请人：株式会社日立産機システム
发明人：西濱和雄 , 阿部敦 , 平田雄也
IPC分类号： H02K17/42 , H02K17/12
摘要：【課題】設備コストを低減し、回転電機の特性の悪化を防ぐ回転電機を提供する。【解決手段】回転電機は、固定子スロット7に配置された固定子巻線8とを有する固定子1と、回転子スロット12に配置された回転子バー11を有する回転子2とを有する。極数は、定めておいた複数の極数からなる極数範囲に含まれており、固定子巻線により生じる電流による起磁力の分布に含まれるkf次の高調波次数kfと、ギャップの磁気抵抗の分布に含まれるkp次の高調波次数kpと、極数Pと、固定子スロット数Nsと、回転子スロット数Nrとに基づいて、電磁加振力が発生する円環モード次数Mを算出し、算出したMのうち、最小値をMminとし、Mminが、所定値を超えた場合における、固定子スロット数Nsと回転子スロット数Nrを選定し、選定した固定子スロット数Nsの固定子と、選定した回転子スロット数Nrの回転子を有する。【選択図】図1

2. 发明专利

JP4792066B2 AC-excited synchronous generator and AC-excited synchronous generator system 有权
公开(公告)号：JP4792066B2
公开(公告)日：2011-10-12
申请号：JP2008195093
申请日：2008-07-29
申请人：株式会社日立製作所
发明人：浩幸三上 , 修二水谷 , 公則澤畠 , 哲朗藤垣 , 和雄西濱 , 元信飯塚
IPC分类号： H02K19/16 , H02K7/18 , H02K17/42
CPC分类号： H02K1/165 , H02K1/265 , H02K17/42

3. 发明专利

JP2571367B2 失效
公开(公告)号：JP2571367B2
公开(公告)日：1997-01-16
申请号：JP13865086
申请日：1986-06-13
申请人： SATAKE ENG CO LTD
发明人： SATAKE TOSHIHIKO
IPC分类号： H02K16/00 , H02K17/34 , H02K17/42 , H02P21/04 , H02P21/34 , H02P21/36 , H02P23/00 , H02P23/03 , H02P23/07 , H02P25/02 , H02P25/024 , H02P25/10 , H02P7/36

4. 发明专利

JPH06165456A INDUCTION GENERATOR AND PARALLEL OPERATION WITH MAINS SYSTEM THEREOF 失效
公开(公告)号：JPH06165456A
公开(公告)日：1994-06-10
申请号：JP33800692
申请日：1992-11-25
申请人： TOKYO GAS CO LTD , SHIN NIPPON KUCHO KK
发明人： NAKADA TOSHIO , KITANO YUICHI
IPC分类号： H02J3/38 , H02K17/42 , H02P9/00
摘要： PURPOSE:To suppress an overcurrent without using a reactor at the time of a parallel connection by dividing the stator winding of an induction generator into two parts and by connecting a switch between the divided windings. CONSTITUTION:The stator widing of a three-phase induction generator is divided into a first winding 1 and second winding 2. While the phase windings U1, V1, W1 of the first winding 1 and the phase windings U2, V2, W2 of the second winding 2 are respectively connected through a switch 4, the phase windings U1, V1, W1 of the first winding 1 are connected with the phases R, S, T of a system power supply via switch 3, respectively. Then, when the switch 4 is closed, the first winding 1 and second winding 2 are connected in parallel with the system power supply. Thus, a parallel operation with mains of reverse current system is made possible, and cost and space for a reactor can be saved.

5. 发明专利

JPH05265583A 失效
公开(公告)号：JPH05265583A
公开(公告)日：1993-10-15
申请号：JP8927792
申请日：1992-03-16
IPC分类号： G05F1/67 , H02J3/38 , H02K17/42
摘要： PURPOSE:To increase the rated output capacity of a generator to a level equivalent to the reception capacity and to obtain a stable power profitably by providing a reception power detecting means and a reception lower limit value setting means, and discharging the excessive power of an induction generator to the outside of a system by a power discharge means when the reception power goes less than a reception lower limit value. CONSTITUTION:When a propeller 8 is rotated by receiving wind, the induction generator 9 is rotated, to be in a power generating state, and a power can be generated by connecting the induction generator 9 to a power generation system R via a bus 10. The reception power can be always detected in real time by a reception detecting means 13, and the minimum level is set by a reception lower limit value setting means 14. When the reception power goes less than the reception lower limit value, a command is outputted to the power discharge means 15, and the output of the induction generator 9 is discharged to the outside of the system by a power discharge means 15 consisting of a reactor and a transistor via a resistor 16. Thereby, it is possible to prevent a reverse tidal current to a reception system from occurring, and to increase and stabilize the output of the generator.

6. 实用新型

JPH0377266U 失效
公开(公告)号：JPH0377266U
公开(公告)日：1991-08-02
申请号：JP13667289
申请日：1989-11-24
IPC分类号： H02K17/42

7. 发明专利

JPS6311089A ADJUST SPEED INDUCTION MOTOR 失效
公开(公告)号：JPS6311089A
公开(公告)日：1988-01-18
申请号：JP15452986
申请日：1986-06-30
申请人： SATAKE ENG CO LTD
发明人： SATAKE TOSHIHIKO , ONOKI YUKIO
IPC分类号： H02K16/00 , H02K17/34 , H02K17/42 , H02P23/00
摘要： PURPOSE:To obtain large torque stably extending over the whole region up to high-speed revolution from low-speed revolution including the time of starting by connecting each winding wound on a plurality of stators in parallel with a power supply through a current transformer. CONSTITUTION:When windings 22, 23 for first and second stators 24, 25 are conducted from a three-phase power supply through current transformers 43, 46, a rotating magnetic field is generated in the stators 24, 25 and voltage is induced in a rotor 8, and currents flow through conductors 5 for the rotor 8 and the rotor 8 is turned. A pulse motor 35 is operated, and the first stator 24 and the second stator 25 are revolved, thus adjusting voltage induced in the rotor 8, then controlling the speed of the rotor in a stepless manner.

8. 发明专利

JPS62268340A INDUCTION-SYNCHRONOUS MOTOR 失效
公开(公告)号：JPS62268340A
公开(公告)日：1987-11-20
申请号：JP10857986
申请日：1986-05-14
申请人： NIPPON SEIMITSU KEISOKU KK
发明人： FUKAO ISAO , HAYASHI ISAMU
IPC分类号： H02K19/26 , H02K17/42
摘要： PURPOSE:To operate a motor as an induction motor receiving load despatch from the system in normalcy and to operate it as a synchronous motor continuing the rotation in outage, by embedding a conductor passing through in parallel to the enclosing groove to enclose an exciting rotor winding into the above- mentioned groove and at the same time by connecting both ends of the conductor to short-circuit rings. CONSTITUTION:An induction-synchronous motor is composed of a stator winding 1, a rotor 2, an exciting AC generator 5, its rotor winding 6, an exciting winding 7 and an automatic voltage regulator 8. To the rotor 2 a conductor 11 is embedded into the exciting winding enclosing groove, passing axially through. A short-circuit ring 12 is secured inside the bottom of the enclosing groove on the rotor end face and short-circuited with a short-circuit bar 13. Thus in the outage of power system, if a switch 9 is closed to continue the rotation, a corresponding voltage is induced to the stator winding by the residual magnetism on the rotor, so that specified voltage is set up at the stator winding 1 and the motor can be operated as a synchronous motor.

9. 发明专利

JPS624958B2 失效
公开(公告)号：JPS624958B2
公开(公告)日：1987-02-02
申请号：JP10717276
申请日：1976-09-07
申请人： BORG WARNER
发明人： DEIBITSUDO JEEMUSU GURITSUTAA , JOOJI HENRII SUTATSUTOMAN
IPC分类号： H02P9/00 , H02K17/42 , H02P9/46

10. 发明专利

JPS589556A VARIABLE-SPEED DRIVE FIXED FREQUENCY GENERATOR 失效
公开(公告)号：JPS589556A
公开(公告)日：1983-01-19
申请号：JP10451981
申请日：1981-07-06
申请人： HITACHI LTD
发明人： WATABE MASATOSHI , TAKAHASHI NORIYOSHI
IPC分类号： H02K17/42 , H02K17/44
摘要： PURPOSE:To eliminate the need for maintenance and inspection around a complicated slip ring by exciting a main induction machine by using an induction machine for excitation in place of the slip ring and a brush. CONSTITUTION:The winding type induction machine 9 for excitation is directly coupled with the main induction machine 1, the secondary winding 9b is connected electrically to the secondary winding 1b of the induction machine 1, and the primary winding 9a is connected to a bus 4 through a frequency converter 6, a transformer 5 and a switch 3. Accordingly, maintenance and inspection around the complicated slip ring are unnecessitated because the rotary secondary winding of the main induction machine can be AC-excited in frequency corresponding to the speed of revolution of a prime mover without using the slip ring and the brush.

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