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41. 发明专利

JP2006349470A DEVICE AND METHOD FOR SPECIFYING POSITION OF UPLINK INTERFERENCE SOURCE 审中-公开
公开(公告)号：JP2006349470A
公开(公告)日：2006-12-28
申请号：JP2005175263
申请日：2005-06-15
申请人： TOSHIBA CORP
发明人： KAMIMURA YUKIHIRO , ANDO YASUHIRO
IPC分类号： G01S5/06
摘要： PROBLEM TO BE SOLVED: To easily and precisely specify a position of an uplink interference source in a short period of time. SOLUTION: This device/method receives a downlink through two satellites by two reception antennas 10-11, makes AD-sampling of reception signals in two lines at the same time to acquire digital data, and conducts correlation processing for calculating an arrival time difference and a Doppler frequency difference, in a correlation processing part 40. A position at a time measured by the two satellites receiving a radio wave is calculated in a satellite position calculation processing part 50. A position of a ground station is estimated in an emission source position estimation processing part 60, using information of the arrival time difference and the Doppler shift frequency difference obtained by the correlation processing part 40, and the measured time obtained by the satellite position calculation processing part 50, and coordinates of an intersection of a locus of the arrival time difference with a locus of the Doppler frequency difference are plotted on a map in a display part 70 to display a position estimation result of a radio wave emission source. COPYRIGHT: (C)2007,JPO&INPIT

42. 发明专利

JP2003240846A RADIO WAVE PHOTOGRAPHY SYSTEM AND METHOD FOR FORMING RADIO WAVE PHOTOGRAPH 审中-公开
公开(公告)号：JP2003240846A
公开(公告)日：2003-08-27
申请号：JP2002039084
申请日：2002-02-15
申请人： TOSHIBA CORP
发明人： WADA MASAKAZU , ANDO YASUHIRO
IPC分类号： G01S13/89 , G01S19/14 , G01S5/14
摘要： PROBLEM TO BE SOLVED: To acquire high-resolution radio wave photographic images out of signals from a relatively low-frequency radio wave emitter by use of a small- scale inexpensive system. SOLUTION: Radio waves from a radio wave emitting source are received and detected at a plurality of locations, such as a receiving antenna 12 and a receiver 14, and their intensity, phase data, reception time, and positional data are acquired by a GPS antenna 11 and a GPS receiver 13. The phase shift amount is corrected by a processor 15 based on time difference from the reference time, and this enables a photograph forming unit 16 to form a radio wave photographic image by using data equivalent to those as received simultaneously at the respective receiving locations. As the result, data equivalent to those to be obtained only by using a huge receiving antenna are available, and an image high in resolution, despite the relatively low frequency of the radio waves from the emitting source, is acquired when requested. In this way, a high-resolution image is obtained by using a small-scale inexpensive system. COPYRIGHT: (C)2003,JPO

43. 发明专利

JPH10225130A VOLTAGE TYPE INVERTER DEVICE 失效
公开(公告)号：JPH10225130A
公开(公告)日：1998-08-21
申请号：JP2752897
申请日：1997-02-12
申请人： TOSHIBA ENGINEERING CO , TOSHIBA CORP
发明人： YANAGAWA MASAKI , ANDO YASUHIRO
IPC分类号： H02M7/48 , H02M7/493 , H02P27/06 , H02P5/41
摘要： PROBLEM TO BE SOLVED: To raise the reliability on a voltage inverter device by detecting the frequency of the surge voltage included in the output voltage, and compensating the phase control signal by the detected frequency, and controlling the surge voltage. SOLUTION: A phase compensating circuit 30A is connected to a voltage detector 12 and a control circuit 11, and it detects the surge voltage frequency of a voltage detection signal (output voltage signal) e11, receiving the input of an output voltage signal e11 and a phase control signal e2 to control an inverter circuit 2, and compensates the phase control signal e2 by the detected surge voltage frequency, and outputs such as phase control signal e3 as to suppress the surge voltage so as to control the inverter circuit 3. In this case, the surge frequency detector 20 is connected to the voltage detector 12 and the control circuit 11, and it detects the surge voltage frequency of a voltage detection signal e11, receiving the input of the output voltage signal e11 and the phase control signal e2 to control an inverter circuit 2, and outputs a surge frequency signal e21. Hereby, the occurrence of surge is suppressed.

44. 发明专利

JPH04121096A AC MOTOR CONTROLLER 失效
公开(公告)号：JPH04121096A
公开(公告)日：1992-04-22
申请号：JP23988090
申请日：1990-09-12
申请人： TOSHIBA CORP
发明人： ANDO YASUHIRO
IPC分类号： H02P27/06
摘要： PURPOSE:To sustain operation even upon power supply voltage drop without lowering operational efficiency by obtaining a voltage reference and a frequency reference from a speed reference and producing a correction output based on a compensation value. CONSTITUTION:An AC power supply 1 is fed to a VVVF 100 which produces an AC power having a desired frequency based on a voltage control command fed from a phase control circuit 21 and a frequency control command fed from a frequency control circuit 41 thus driving an AC motor 5. Voltage Vm of the motor 5 is fed back, as a voltage detection signal Vf, through a transformer 43 and compared with a voltage reference V* at a voltage control circuit 23 and a current reference I* is outputted so that the difference becomes zero. Input current to the VVVF 100 is fed back, as a current detection signal If, through a current transformer 12 and a current detecting circuit 14 and compared with the current reference I* at a current control circuit 22. An operational command is then outputted so that the difference becomes zero thus outputting a voltage control command from the phase control circuit 21.

45. 发明专利

JPH03226296A AC MOTOR CONTROLLER 失效
公开(公告)号：JPH03226296A
公开(公告)日：1991-10-07
申请号：JP1891390
申请日：1990-01-31
申请人： TOSHIBA CORP
发明人： KITAMASA TATSUHISA , ANDO YASUHIRO
IPC分类号： H02P27/06
摘要： PURPOSE:To stabilize the operation over the entire rotational range by making a product of an input current to a phase controller and a current feedback signal, detecting power to be fed to an AC motor, and damping the AC motor. CONSTITUTION:A multiplier 28 for calculating the product of an input signal e3 to a phase controller 24 and a current feedback signal e4 and a power detector 29 for differentiating the variation of the output from the multiplier 28 are additionally provided. Variation of power supply to an AC motor 15 is detected based on the variation of the product of the phase control signal e3 and the current feedback signal e4 and then a correction signal is provided to a speed reference e1 in order to damp the AC motor 15 thus suppressing instable phenomenon to same level over a wide rotational range.

46. 发明专利

JPS62244296A DRIVING DEVICE FOR AC MOTOR 失效
公开(公告)号：JPS62244296A
公开(公告)日：1987-10-24
申请号：JP8490286
申请日：1986-04-15
申请人： TOSHIBA CORP
发明人： OKURA MITSUGI , ANDO YASUHIRO
IPC分类号： H02P25/04 , H02P27/06
摘要： PURPOSE:To enable stable change-over of power source for a short time without producing overcurrent, by a method wherein phases are corrected in consideration of commutatition time so that the phase of commercial power source and the actual current phase of a power converter are coincident. CONSTITUTION:A commutation time operation circuit 37 operates previously expected commutation time T1 from current and power factor of an AC motor, and output of a counter 31 is corrected by a commutation time correction circuit 36. Output of the commutation time correction circuit 36 is compared with current phase of the AC motor and amplified by a phase comparator 35, and frequency correction signal Ep is generated for coincidence of frequency and phase to an oscillator 30. In this constitution, before entering of operation signal RUN, current waveform produced by supplying ignition pulse is controlled so as to be coincident with the current phase of the motor.

47. 发明专利

JPH0327793A CONTROLLER FOR MOTOR 失效
公开(公告)号：JPH0327793A
公开(公告)日：1991-02-06
申请号：JP16222089
申请日：1989-06-23
申请人： TOSHIBA CORP
发明人： ANDO YASUHIRO , KITAMA TATSUHISA
IPC分类号： H02P27/06
摘要： PURPOSE:To immediately restart a motor even if the motor is once stopped by correcting a power factor angle obtained by a terminal voltage and rotating speed of the motor during a power interruption period with a voltage phase detected by a phase detector, and outputting it as a phase control signal of an inverter. CONSTITUTION:When a power interruption detector detects recovery of an input power source, the AND condition of an AND circuit 9a is satisfied. Accordingly, a phase controller and a pulse converter immediately start according to its output signal. In this case, since the ratio of the rotating speed to the terminal voltage of an induction motor does not coincide with the ratio of the rated rotating speed to the rated terminal voltage of the motor, a power factor angle detector 96a so outputs a signal that the ratio of the rotating speed to the terminal voltage of the motor becomes a predetermined value. A phase correction signal is calculated by a proportional integrator 96b with a signal output from the detector 96a to determined the final output phase of an inverter.

48. 发明专利

JPH037068A MULTIPLE CONTROLLER 失效
公开(公告)号：JPH037068A
公开(公告)日：1991-01-14
申请号：JP13885989
申请日：1989-05-31
申请人： TOSHIBA CORP
发明人： ANDO YASUHIRO , YAMAGUCHI YASUYUKI
IPC分类号： H02M7/155 , G05F5/00 , H02M7/12 , H02M7/537
摘要： PURPOSE:To improve the availability of system of providing fault reset signals to all control circuits, based on fault signals fed from respective control circuits, upon fault of any control circuit and releasing fault mode automatically thereby ensuring multiplex configuration at all times. CONSTITUTION:Multiple controller comprises an automatic reset circuit 9 for detecting fault in multiple control circuits A6, B7 during operation of a power controller 2 through any one of the control circuits A6, B7 and providing fault reset signals to all multiple control circuits to interrupt the operational power source of the control circuit temporarily, a circuit 8 for selecting the reset circuit through function of the automatic reset circuit 9, and a circuit 80 for switching the control circuit based on a signal selected through the selecting circuit 8. By such arrangement, fault rest is executed automatically upon detection of a fault during operation of one control circuit and a sound control circuit is selected to resume operational control immediately.

49. 发明专利

JPH01206894A AC VARIABLE SPEED MOTOR CONTROLLER 失效
公开(公告)号：JPH01206894A
公开(公告)日：1989-08-21
申请号：JP2877488
申请日：1988-02-12
申请人： TOSHIBA CORP
发明人： KATAURI TOMOO , ANDO YASUHIRO
IPC分类号： H02P27/06
摘要： PURPOSE:To reduce the fallen value of rotation of an apparatus, even when abnormality occurs, and to return said apparatus quickly to the state of operation before said abnormality occurred, by providing said apparatus with two control systems so as to change one control system to the other one, when abnormality occurs in said one control system. CONSTITUTION:An apparatus is provided with a normal A control system and a stand-by B control system. In the middle of a passage through which a signal from rate-of-change controllers 30A, 30B is inputted to voltage controllers 31A, 31B and frequency controllers 36A, 36B, there is a switch 51 to select one of said A and B systems. During operation of the A system, that is, while the B system is standing by, a B phase controller 33B always synchronizes a clock and pulse oscillation timing built in itself with a phase from the input side voltage of an AC-to-DC converter 22 and stands by so as to be capable of operating immediately when a phase command from a current controller 32B comes. In this manner, the fallen value of rotation of a motor can be reduced, even if the control system is changed to the stand by system.

50. 发明专利

JPH0191695A POWER CONVERTER 失效
公开(公告)号：JPH0191695A
公开(公告)日：1989-04-11
申请号：JP24802787
申请日：1987-10-02
申请人： TOSHIBA CORP
发明人： ANDO YASUHIRO
IPC分类号： H02M7/48 , H02P25/04 , H02P27/06
摘要： PURPOSE:To smoothly re-start an AC motor when service interruption is released, by detecting the terminal voltage phase of the motor at the time of the device interruption, and by correcting the output current phase of a power converter. CONSTITUTION:By an input voltage detector 12, the lowered voltage of an input AC power source 1 is detected, and a rectifier 2 and an inverter 4 are stopped, and a switch 33 is turned ON. By the output signal of a phase difference detector 31, the set reference e1 of the input of an input limiting circuit 7 and the output voltage frequency reference e2 of output are corrected at the same time. Then, the output voltage frequency reference e2 is set to be of attenuation characteristic similar to that of the rotational speed of an induction machine 5. When the release of the input AC power source 1 is detected by the input voltage detector 12, then the operating of the rectifier 2 and the inverter 4 is re-started.

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