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11. 发明专利

JPS5740370A Inverter control system for driving inductive load 失效
标题翻译：用于驱动感应负载的逆变器控制系统
公开(公告)号：JPS5740370A
公开(公告)日：1982-03-05
申请号：JP11493080
申请日：1980-08-21
申请人： Meidensha Electric Mfg Co Ltd
发明人： ASHIKAGA TADASHI , IGARASHI MAKOTO
IPC分类号： H02M7/515 , H02M7/521 , H02M7/5388
CPC分类号： H02M7/521
摘要： PURPOSE:To equalize current duty of each element by supplying a specified gate pulses to gates of switching elements and suppressing the overvoltage generated at the time of commutation. CONSTITUTION:The inverter supplies a current to the inductive load M. The first half of the conducting time of gate pulses, which are supplied to the gates of the switching element S1-S6, is controlled by PWM, and the last half is controlled by 100%. In this system, since the discharging path of the energy stored in windings is formed for all the time, the generation of the overvoltage can be suppressed. Since spaces between the windings are shorted by switching elements, the returning currents to a capacitor on the DC side is reduced, ripple currents are reduced, and the current duty of each element can be equalized.
摘要翻译：目的：通过向开关元件的栅极提供指定的栅极脉冲并抑制换向时产生的过电压来均衡每个元件的电流占空比。构成：逆变器向电感负载M提供电流。提供给开关元件S1-S6的栅极的栅极脉冲的导通时间的前半部分由PWM控制，最后一半由 100％。在该系统中，由于存储在绕组中的能量的放电路径一直形成，所以可以抑制过电压的产生。由于绕组之间的间隙由开关元件短路，所以直流侧的电容器的返回电流降低，纹波电流降低，并且可以使各元件的电流占空比相等。

12. 发明专利

JPS56121373A INVERTER DEVICE 失效
公开(公告)号：JPS56121373A
公开(公告)日：1981-09-24
申请号：JP2255780
申请日：1980-02-25
申请人： MEIDENSHA ELECTRIC MFG CO LTD
发明人： IGARASHI MAKOTO , ASHIKAGA TADASHI
IPC分类号： H02M7/48 , H02M7/515
摘要： PURPOSE:To effectively extinguish a thyristor with a small extinguishing energy by eliminating the load energy at the time of commutation to flow through the thyristor to be extinguished. CONSTITUTION:A smoothing capacitor C2 is connected in parallel with a DC power source E, and diode groups D7-D12 for circulating the load energy at the time of commutation are connected in parallel with the capacitor C2. The load energy at the time of commutation is circulated through the feedback diode groups D7-D12 to the smoothing capacitor C2, but inhibited to flow the thyristor group S1-S6 of the power inverter. Since the load energy at the time of commutation does not flow through the thyristor in this manner, the thyristor can be effectively extinguished with small extinguishing energy.

13. 发明专利

JPS5668288A DEVICE FOR REGENERATION OF COMMUTATORLESS MOTOR 失效
公开(公告)号：JPS5668288A
公开(公告)日：1981-06-08
申请号：JP14375879
申请日：1979-11-05
申请人： MEIDENSHA ELECTRIC MFG CO LTD
发明人： IGARASHI MAKOTO , ASHIKAGA TADASHI
IPC分类号： H02P6/24 , H02P6/02
摘要： PURPOSE:To perform the regenerative operation of the commutatorless motor by isolating the feedback circuit of motor winding generating energy used at the time of driving the motor using switching means and operating the thyristor bridge circuit as an external commutated inverter. CONSTITUTION:Switches 19, 20 are closed at driving time, and motor winding generating excessive energy due to commutation phenomenon is fed back through a diode bridge circuit 17 to a capacitor 18. The switches 19, 20 are opened at the regenerative time and all gate turn-off thyristors 3-8 are conducted and operated as diodes. Thus, the counter-electromotive force of the motor 9 is rectified through the gate turn-off thyristors 3-8, its DC voltage operates the thyristor bridge circuit 1 as an external commutated inverter, thereby regenerating to the power source side.

14. 发明专利

JPS5372113A OPERATING METHOD OF COMMUTATORLESS MOTOR UTILIZING GTO AND DISTRIBUTORAPPLICABLE TO IT 失效
公开(公告)号：JPS5372113A
公开(公告)日：1978-06-27
申请号：JP14739876
申请日：1976-12-08
申请人： MEIDENSHA ELECTRIC MFG CO LTD
发明人： FUKUSHIMA TOMIO , IGARASHI MAKOTO
IPC分类号： H02K29/06 , H02P6/06 , H02P6/08
摘要： PURPOSE:To control motor by installing rotary disc having projections corresponding in number with poles, and position detecting elements for producing on-off pulses corresponding in number with phases of multi-phases bridge.

15. 发明专利

JPH0519398B2 失效
公开(公告)号：JPH0519398B2
公开(公告)日：1993-03-16
申请号：JP22522783
申请日：1983-11-28
申请人： MEIDENSHA ELECTRIC MFG CO LTD
发明人： TERAJIMA MASAYUKI , IGARASHI MAKOTO , ASHIKAGA TADASHI
IPC分类号： H02M7/537 , H02P21/00 , H02P23/07 , H02P23/08 , H02P23/16 , H02P27/04 , H02P27/08

16. 发明专利

JPH0519397B2 失效
公开(公告)号：JPH0519397B2
公开(公告)日：1993-03-16
申请号：JP22487183
申请日：1983-11-29
申请人： MEIDENSHA ELECTRIC MFG CO LTD
发明人： TERAJIMA MASAYUKI , IGARASHI MAKOTO , ASHIKAGA TADASHI
IPC分类号： H02P27/08 , H02M7/537 , H02P21/00 , H02P23/07 , H02P23/16

17. 发明专利

JPH037027A CONTROL SYSTEM OF POWER CONVERTER FOR ZINC BROMIDE BATTERY 失效
公开(公告)号：JPH037027A
公开(公告)日：1991-01-14
申请号：JP13874289
申请日：1989-05-31
申请人： MEIDENSHA ELECTRIC MFG CO LTD
发明人： IGARASHI MAKOTO , KATAOKA YASUO
IPC分类号： H02J7/34 , H02M7/75
摘要： PURPOSE:To unnecessitate a special power supply for precharge and enable the precharge to be performed under a simple control by enabling a voltage type inverter to be driven and controlled in a charge mode and in synchronism with a system power supply and by performing a charge by an inverter after the precharge is conducted via the diode of the inverter. CONSTITUTION:A gate control circuit 17 is let synchronize with a system power supply 2, a voltage type inverter 11 is let stand by so as to be operable in a charge mode, a switch (SW) 15 is opened and switches SW 16a-16c are closed. Then, the current of the system power supply 2 is three-phase full wave rectified by diodes 13a-13f to be supplied to a battery 3 via a current limiting resistor 14, being precharged. Then the switch SW 15 is closed after a precharge is completed and a gate control current is supplied from the gate control circuit 17 that has stood by to gate turn off thyristors 12a-12f. Thus charge is performed via the switch SW 10, translating from the precharge by a rectified output to the charge by the voltage type inverter 11.

18. 发明专利

JPH02177275A LIQUID CIRCULATION TYPE BATTERY 失效
公开(公告)号：JPH02177275A
公开(公告)日：1990-07-10
申请号：JP33247788
申请日：1988-12-28
申请人： MEIDENSHA ELECTRIC MFG CO LTD
发明人： KATAOKA YASUO , IGARASHI MAKOTO
IPC分类号： H01M12/08
摘要： PURPOSE:To reduce voltage fluctuation due to electric charge and discharge by providing a switching part for selecting the serial connection number of cells. CONSTITUTION:A negative terminal 7 is led from an electrode 3 at the right end of a battery unit U and external terminals are led from electrodes 6 at the left end of the unit U, for example, from each electrode 6 up to the 10th electrode. switches 8 are respectively connected to the aforesaid terminals and the other ends of the switches 8 are connected in common. The common circuit end so made is used as a positive terminal 9. For example, when the electromotive force of each cell is high, only the switch 8 at the extreme right side of the switch group 8 is closed for reducing the number of serial connections. Also, when the electromotive force is low, only the extreme left switch 8 is closed for increasing the number of serial connections.

19. 发明专利

JPH0274124A AD/DC CONVERTER FOR POWER STORAGE BATTERY 失效
公开(公告)号：JPH0274124A
公开(公告)日：1990-03-14
申请号：JP22397688
申请日：1988-09-07
申请人： MEIDENSHA ELECTRIC MFG CO LTD
发明人： KATAOKA YASUO , IGARASHI MAKOTO
IPC分类号： H02J7/00 , H02J7/34 , H02M7/12 , H02M7/155 , H02M7/757
摘要： PURPOSE:To reduce the size and the cost of AC/DC converter by performing perfect discharge and preliminary charge, in addition to charge/discharge of a battery, through charge/discharge current control and phase difference control. CONSTITUTION:A power storage battery 2 is connected through a charge/ discharge switch 5 having chopper function to DC side of a self-exciting current type AC/DC converter 6. The switch 5 comprises GTO thyristors GP, GM and diodes D1, D2 and controls charge and discharge currents flowing between the battery 2 and the AC/DC converter 6. The AC/DC converter 6 is constructed into a GTO thyristor bridge and performs DC/AC conversion and AC/DC conversion. In other words, a DC power source IDC is controlled through the switch 5 while phase angle is controlled through the AC/DC converter 6. By such arrangement, perfect discharge and reactive power control can be performed in addition to normal charge/discharge.

20. 发明专利

JPS6161057A Speed detecting device 失效
标题翻译：速度检测装置
公开(公告)号：JPS6161057A
公开(公告)日：1986-03-28
申请号：JP18356484
申请日：1984-08-31
申请人： Meidensha Electric Mfg Co Ltd
发明人： TERAJIMA MASAYUKI , SAWADA YOSHIMASA , TANAKA HISAO , IGARASHI MAKOTO
IPC分类号： G01P3/42 , G01P3/44
CPC分类号： G01P3/44
摘要： PURPOSE:To output a stable speed detection signal by stopping the differentiating operation of a differentiating circuit temporarily with an inflection point detection signal. CONSTITUTION:Normally open contacts S1 and S4 of the differentiating circuit 2 are broken unless there is a signal from an inflection point detection part 3, and normally closed contacts S2 and S3 are held closed unless there is a signal from the detection part 3. The output signal of a saw-tooth wave generating circuit 1 is converted into a rectangular wave signal Q, which is passed through a shift register 3a to input output signals Q1 and Q2 to an exclusive OR gate 3b. When the signals Q1 and Q2 are 1 and 0, or 0 and 1, an output signal Q3 is obtained. Output signals Q1 and Q2 of the register 3a, however, are 0 and 0, or 1 and 1 almost at the inflection point of the saw-tooth wave of the rectangular wave signal Q. Thus, the inflection point of the saw-tooth wave is detected and the output signal Q3 of the gate 3 is passed through a pulse width adjusting circuit 3c to control the normally open and normally closed contacts S1-S4, and consequently the operation of the circuit 2 at the inflection point is stopped temporarily to obtain the speed detection signal from a resolver stably.
摘要翻译：目的：通过用拐点检测信号临时停止微分电路的微分运算，输出稳定的速度检测信号。构成：除非有来自拐点检测部分3的信号，否则微分电路2的常开触点S1和S4会断开，而常闭触点S2和S3保持闭合，除非有来自检测部分3的信号。锯齿波发生电路1的输出信号被转换为矩形波信号Q，该矩形波信号Q通过移位寄存器3a以将输出信号Q1和Q2输入到异或门3b。当信号Q1和Q2为1和0或0和1时，获得输出信号Q3。然而，寄存器3a的输出信号Q1和Q2分别为0和0或1和1几乎在矩形波信号Q的锯齿波的拐点处。因此，锯齿波的拐点并且门3的输出信号Q3通过脉冲宽度调整电路3c以控制常开和常闭触点S1-S4，因此临时停止拐点处的电路2的操作以获得来自旋转变压器的速度检测信号稳定。

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