公开(公告)号：US20090108816A1

公开(公告)日：2009-04-30

申请号：US12261583

申请日：2008-10-30

Applicant: Yasuhiro NAKADA ,  Toshio INOUE

Inventor： Yasuhiro NAKADA ,  Toshio INOUE

IPC: H02P9/30

CPC classification number: H02P9/30

Abstract: Output waveform of the generator is improved through stabilization of field current by removing flywheel diode used to be required for automatic voltage regulator. Output electric current of excitation winding 3 is rectified by rectifier 8 and is supplied to field winding 5 of rotor 4. Impedance adjustment circuit 12 is provided to circuit where field current flows. Target electric current determination unit 10 determines target electric current (target field current) used to control output voltage of power generation winding 2 to the reference voltage. Impedance adjustment circuit 12 increases or decreases the impedance of field current circuit so that the field current detected by electric current detector 11 converges with target electric current.

Abstract translation: 通过消除自动电压调节器所需的续流二极管，稳定励磁电流，可以提高发电机的输出波形。 励磁绕组3的输出电流由整流器8整流并提供给转子4的励磁绕组5.阻抗调整电路12设置为励磁电流流动的电路。 目标电流确定单元10将用于控制发电绕组2的输出电压的目标电流（目标励磁电流）确定为基准电压。 阻抗调整电路12增加或减小励磁电流电路的阻抗，使得由电流检测器11检测的励磁电流与目标电流收敛。

公开(公告)号：US20110068752A1

公开(公告)日：2011-03-24

申请号：US12872554

申请日：2010-08-31

Applicant: Yasuhiro NAKADA ,  Minoru Maedako ,  Kenji Kamimura

Inventor： Yasuhiro NAKADA ,  Minoru Maedako ,  Kenji Kamimura

IPC: H02P9/02

CPC classification number: H02P9/48 ,  H02J7/245 ,  Y02T10/92

Abstract: A generator (100) includes a generator winding (103) and an excitation winding (104), and a field winding (102). To converge an output voltage of the generator winding (103) to a target, a field current is varied by increasing/decreasing an energization duty ratio of a switching device (110) connected to the field winding (102). In a duty ratio zero determination unit (2) and a duty ratio zero continuation determination unit (3), when an output duty ratio continues for a predetermined time with duty ratio zero, a duty ratio increase amount restriction unit (4) restricts an upper limit of the duty ratio to a predetermined upper limit when the field current increases. A duty ratio restriction unit (21a) for restricting the duty ratio by a maximum value determined based on a voltage of a smoothing capacitor (113) in place of the determination of the duty ratio being zero may be provided.

Abstract translation: 发电机（100）包括发电机绕组（103）和励磁绕组（104），以及励磁绕组（102）。 为了将发电机绕组（103）的输出电压会聚到目标，通过增加/减少与励磁绕组（102）连接的开关装置（110）的通电占空比来改变励磁电流。 在占空比零确定单元（2）和占空比零继续确定单元（3）中，当占空比为零时输出占空比持续预定时间时，占空比增加量限制单元（4）限制上限 当场电流增加时，占空比的极限值达到预定的上限。 可以提供用于将占空比限制为基于平滑电容器（113）的电压确定的最大值的占空比限制单元（21a），以代替占空比为零的确定。

公开(公告)号：US20110089910A1

公开(公告)日：2011-04-21

申请号：US12872545

申请日：2010-08-31

Applicant: Yasuhiro NAKADA ,  Minoru MAEDAKO

Inventor： Yasuhiro NAKADA ,  Minoru MAEDAKO

IPC: H02P9/26

CPC classification number: H02P9/305

Abstract: When a distortion of an output waveform of an alternating-current generator is improved, an output voltage control apparatus of a generator, which has versatility, is obtained. An output voltage control apparatus of a generator (1), including a generator winding (2) and an excitation winding (3) wound around a stator side, a field winding (5) wound around a rotor (4), and a rectifier (12) for rectifying a current generated by the excitation winding (3) and supplying the rectified current to the field winding (5), the output voltage control apparatus includes a field current drive means (20) for comparing an output voltage generated to the generator winding (2) with a reference wave whose distortion ratio is 0% and flowing a field current to the field winding (5) by adjusting a drive timing of a PWM signal output by a drive unit (24) based on a result of the comparison.

Abstract translation: 当交流发电机的输出波形失真得到改善时，获得具有通用性的发电机的输出电压控制装置。 1.一种发电机（1）的输出电压控制装置，包括发电机绕组（2）和缠绕在定子侧的励磁绕组（3），绕绕转子（4）的励磁绕组（5）和整流器 12），用于整流由励磁绕组（3）产生的电流并将整流电流提供给励磁绕组（5），输出电压控制装置包括励磁电流驱动装置（20），用于将产生的发电机的输出电压 通过基于比较的结果调整由驱动单元（24）输出的PWM信号的驱动定时，使具有失真比为0％的参考波的绕组（2）和通过调节驱动单元（24）输出的PWM信号的驱动定时将励磁电流流到励磁绕组（5） 。

公开(公告)号：US20110101929A1

公开(公告)日：2011-05-05

申请号：US12915688

申请日：2010-10-29

Applicant: Minoru MAEDAKO ,  Yasuhiro NAKADA

Inventor： Minoru MAEDAKO ,  Yasuhiro NAKADA

IPC: H02H7/09

CPC classification number: H02P9/305

Abstract: In a self-excited generator 1 including an automatic voltage regulator (AVR) 10, a condensive load protection device includes: a field current control driver 21 which is connected to the field winding 6 in series and controlled to be ON/OFF by a drive circuit 23 of the AVR 10 to supply a field current to the field winding 6; and a condensive load protecting rotor short-circuit driver 22 which is connected in parallel to the field winding 6, and supplies a short-circuit current to the field winding 6 by being turned ON, and a bootstrap circuit 30 is connected as a drive power supply of the field current control driver and the condensive load protecting rotor short-circuit driver, and the bootstrap circuit 30 includes a capacitance portion 32 in which charges are accumulated when the field current control driver 21 is ON.

Abstract translation: 在包括自动电压调节器（AVR）10的自激发电机1中，紧急负载保护装置包括：励磁电流控制驱动器21，其串联连接到励磁绕组6，并由驱动器控制为导通/断开 AVR10的电路23向励磁绕组6提供励磁电流; 以及与励磁绕组6并联连接的转子短路驱动器22的紧急负载保护，通过导通将短路电流供给励磁绕组6，将自举电路30作为驱动电力 励磁电流控制驱动器和紧急负载保护转子短路驱动器的供给，并且自举电路30包括电容部32，当励磁电流控制驱动器21接通时，电容部32积蓄电荷。