公开(公告)号：JP2012125064A

公开(公告)日：2012-06-28

申请号：JP2010274012

申请日：2010-12-08

Applicant: Merstech Inc ,  株式会社MERSTech

Inventor： SHIMADA RYUICHI

IPC: H02M7/12 ,  H02M3/155 ,  H02M3/28

Abstract: PROBLEM TO BE SOLVED: To provide a power conversion device capable of achieving a PFC action of an input current and AC-DC conversion with suppressed switching loss, using a magnetic energy regenerative switch having a soft switching function.SOLUTION: The power conversion device 1 includes: an input section 100; a MERS 110; an output section 120; and a low-pass filter comprised of an inductor L and a capacitor C. The capacitor C is connected in parallel between the input section 100 and the MERS 110, and the inductor L is connected in series between the input section 100 and the MERS 110 to achieve a PFC action of an input current and to suppress loss with simple control without necessity of input sensor.

Abstract translation: 要解决的问题：提供一种能够利用具有软切换功能的磁能再生开关来实现具有抑制的开关损耗的输入电流和AC-DC转换的PFC动作的电力转换装置。 电源转换装置1包括：输入部100; 一个MERS 110; 输出部120; 以及由电感器L和电容器C组成的低通滤波器。电容器C并联连接在输入部分100和MERS110之间，电感器L串联连接在输入部分100和MERS110之间 实现输入电流的PFC动作，并且通过简单的控制来抑制损耗，而不需要输入传感器。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012085475A

公开(公告)日：2012-04-26

申请号：JP2010230992

申请日：2010-10-13

Applicant: Merstech Inc ,  Nippon Steel Corp ,  新日本製鐵株式会社 ,  株式会社MERSTech

Inventor： FUKUDA SHIRO ,  SONOBE TADASHI ,  KATO SHUHEI

IPC: H02P27/16 ,  H02P1/28

Abstract: PROBLEM TO BE SOLVED: To provide an induction motor control device for controlling an induction motor so as to stably operate it.SOLUTION: Magnetic Energy Recovery Switches 100u, 100v, and 100w generate a voltage equivalent to one obtained by fluctuating the phase of a voltage generated by AC power supply VS by a value θset, and impress a voltage equivalent to the sum of the voltage and the voltage generated by the AC power supply VS on an induction motor M. A control part 200 determines the θset so that the effective value of the fundamental wave component of a load voltage detected by a voltage detecting part VM converges to a prescribed value, and determines timing of transition of each gate signal based on the θset value to supply the signal to each Magnetic Energy Recovery Switch.

Abstract translation: 要解决的问题：提供一种用于控制感应电动机以使其稳定运行的感应电动机控制装置。 解决方案：磁能恢复开关100u，100v和100w产生相当于通过使由AC电源VS产生的电压的相位波动值θset得到的电压，并且施加相当于 电压和由感应电动机M上的交流电源VS产生的电压。控制部200确定θset，使得由电压检测部VM检测出的负载电压的基波分量的有效值收敛于规定值 并且基于θset值确定每个门信号的转换时序，以向每个磁能恢复开关提供信号。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011239655A

公开(公告)日：2011-11-24

申请号：JP2010111524

申请日：2010-05-13

Applicant: Merstech Inc ,  株式会社MERSTech

Inventor： SHIMADA RYUICHI

IPC: H02J17/00

CPC classification number: H02J50/12 ,  B60L11/182 ,  H02J5/005 ,  H02J7/025 ,  H02M7/217 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/122 ,  Y02T90/127 ,  Y02T90/14

Abstract: PROBLEM TO BE SOLVED: To provide an induction power supply system, a power receiving device and a control method which have a high efficiency independently of a degree of coupling and leakage inductance of a transformer.SOLUTION: The induction power supply system 10 comprises: a power supply device 11 provided with an AC power supply VS, a primary coil L1, and a series circuit; and a power receiving device 12 provided with a secondary coil L2, a magnetic energy regeneration switch 100, a rectifier DB, a load LD, and wireless control devices 201, 202. A current flows into the primary coil L1 from the AC power supply VS, and thereby, a magnetic field is generated in the primary coil L1, and a current flows into the secondary coil L2 by the magnetic field. The wireless control devices 201, 202 control a magnetic energy regeneration switch 100 based on the current flowing into the primary coil L1, and thereby, resonance is always made to be maintained with capacitors CM1, CM2 of the magnetic energy regeneration switch 100 even if a leakage inductance Ls of the secondary coil L2 changes.

Abstract translation: 要解决的问题：提供独立于变压器的耦合度和漏电感度而具有高效率的感应电源系统，受电装置和控制方法。 感应电源系统10包括：设置有交流电源VS，初级线圈L1和串联电路的电源装置11; 以及设置有次级线圈L2，磁能再生开关100，整流器DB，负载LD和无线控制装置201,202的电力接收装置12.电流从AC电源VS流入初级线圈L1 ，从而在初级线圈L1中产生磁场，并且电流通过磁场流入次级线圈L2。 无线控制装置201,202基于流入初级线圈L1的电流来控制磁能再生开关100，由此即使在磁能再生开关100的电容器CM1，CM2中，即使 次级线圈L2的漏电感Ls发生变化。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011239484A

公开(公告)日：2011-11-24

申请号：JP2010105971

申请日：2010-04-30

Applicant: Merstech Inc ,  株式会社MERSTech

Inventor： KATO KYOHEI

IPC: H02M7/48

Abstract: PROBLEM TO BE SOLVED: To reduce variations in one cycle for the amount of magnetic energy accumulated in an inductive load and recovered as electrostatic energy in a capacitor of MERS.SOLUTION: A power converter 1 comprises a MERS 100, a control circuit 200 and a voltage detector VM, and is connected between an AC power supply VS and an inductive load LD. The voltage detector VM detects a voltage of a capacitor CM for the MERS 100. The control circuit 200 controls a voltage output from the AC power supply VS and supplies the voltage to the inductive load LD by switching four reverse conduction type semiconductor switches SW1 to SW4 constituting the full-bridged MERS 100. The control circuit 200 also controls the duty ratio of the reverse conduction type semiconductor switches SW1 to SW4 of the MERS 100 so that a peak voltage value of the capacitor CM becomes constant.

Abstract translation: 要解决的问题：减少在电感负载中累积的磁能量的一个周期的变化，并且作为MERS的电容器中的静电能恢复。 解决方案：功率转换器1包括MERS 100，控制电路200和电压检测器VM，并且连接在AC电源VS和感性负载LD之间。 电压检测器VM检测MERS100的电容器CM的电压。控制电路200控制从AC电源VS输出的​​电压，并通过切换四个反向导通型半导体开关SW1至SW4将电压提供给感性负载LD 构成全桥式MERS100。控制电路200还控制MERS 100的反向导通型半导体开关SW1至SW4的占空比，使得电容器CM的峰值电压值变得恒定。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2015057934A

公开(公告)日：2015-03-26

申请号：JP2013191233

申请日：2013-09-14

Applicant: 株式会社MERSTech ,  Merstech Inc

Inventor： ISOBE TAKANORI

IPC: H02M7/12

Abstract: 【課題】容量の小さなコンデンサを利用可能な無効電力制御装置、無効電力制御方法及びプログラムを提供することである。【解決手段】無効電力制御装置100は、ブリッジ回路110の等価リアクタンスXを制御することによって、無効電力を制御する。等価リアクタンスXは、コンデンサCMのリアクタンスXcより小さい場合を含むため、容量の小さいコンデンサを利用可能である。また、等価リアクタンスXがリアクタンスXc以下の場合は、大きい場合とは違う制御を行うことにより、高調波の発生を抑える。【選択図】図1

Abstract translation: 要解决的问题：提供能够使用容量小的电容器的无功功率控制器，无功功率控制方法和程序。解决方案：无功功率控制器100通过控制桥式电路110的等效电抗X来控制无功功率。 等效电抗X可以小于电容器CM的电抗X，这使得能够使用具有小容量的电容器。 在等效电抗X大于电抗X的情况下进行的控制与在等效电抗X等于或小于电抗X时抑制谐波的产生成为可能。

公开(公告)号：JP2014036573A

公开(公告)日：2014-02-24

申请号：JP2013163155

申请日：2013-08-06

Applicant: Merstech Inc ,  株式会社MERSTech

Inventor： SHIMADA RYUICHI ,  ISOBE TAKANORI ,  KATO KYOHEI ,  YONEDA KEI

IPC: H02M7/12

CPC classification number: Y02B70/1491

Abstract: PROBLEM TO BE SOLVED: To provide a small-sized and low-loss rectifier circuit capable of improving power factor.SOLUTION: Power outputted from an AC power supply AC is caused to be stored in inductors L1 and L2 as magnetic energy via a switch SW1 (or SW2) in an on-state. When the switch SW1 (or SW2) is turned off, the magnetic energy is stored in a capacitor CM as electrostatic energy. The electrostatic energy in the capacitor CM is discharged to a load, after the completion of the discharging, the switch SW1 (or SW2) is turned on again. The on/off frequency and on-time of the switch are constant, thereby achieving current sensor-less and ideal PFC.

Abstract translation: 要解决的问题：提供能够提高功率因数的小型和低损耗整流电路。解决方案：通过开关SW1将从交流电源AC输出的电力作为磁能存储在电感器L1和L2中 （或SW2）处于导通状态。 当开关SW1（或SW2）关闭时，磁能作为静电能量存储在电容器CM中。 电容器CM中的静电能量被放电到负载，在放电完成之后，开关SW1（或SW2）再次导通。 开关的开/关频率和导通时间是恒定的，从而实现无电流传感器和理想的PFC。

公开(公告)号：JP2012235634A

公开(公告)日：2012-11-29

申请号：JP2011103301

申请日：2011-05-02

Applicant: Merstech Inc ,  株式会社MERSTech

Inventor： SHIMADA RYUICHI

IPC: H02M7/12

Abstract: PROBLEM TO BE SOLVED: To reduce a current flowing through each switch in a MERS for increasing a current from an AC power supply to a load.SOLUTION: A MERS 110 short/open-circuits an AC power supply VS for several ten degrees from a time point of negative-to-positive transition of an output voltage of the AC power supply VS (for a local period when the output voltage of the AC power supply VS is lower than a voltage required for a load LD) to increase power supplied to the load LD.

Abstract translation: 要解决的问题：减少流过MERS中每个开关的电流，以增加从交流电源到负载的电流。 解决方案：MERS 110从AC电源VS的输出电压的负向正转换的时间点开始交流电源VS短路数十度（对于本地时间段 交流电源VS的输出电压低于负载LD所需的电压）来增加供给到负载LD的功率。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012005306A

公开(公告)日：2012-01-05

申请号：JP2010140018

申请日：2010-06-18

Applicant: Merstech Inc ,  株式会社MERSTech

Inventor： ISOBE TAKANORI ,  KAZAMA NORIYUKI ,  OTANI YOHEI ,  SHIMADA RYUICHI

IPC: H02M7/48 ,  H02M3/155

CPC classification number: H02M7/4826

Abstract: PROBLEM TO BE SOLVED: To provide a low-loss power conversion device and the like, capable of supplying an AC current to a load with a small fluctuation of a peak value of the voltage supplied to the load.SOLUTION: In a device for supplying power from an MERS (magnetic energy regeneration switch) 100 connected to a power source VS, the load current flowing from the MERS 100 to a load is detected by a current detecting unit 300a. For the purpose of forming a path to begin charging the capacitor of the MERS 100, the timing for turning off the reverse-conducting type semiconductor switch of the MERS 100 is determined on the basis of the amount of the detected load current.

Abstract translation: 要解决的问题：为了提供一种低损耗电力转换装置等，能够以提供给负载的电压的峰值的小的波动向负载提供交流电流。 解决方案：在从连接到电源VS的MERS（磁能再生开关）100供电的装置中，由电流检测单元300a检测从MERS 100流向负载的负载电流。 为了形成开始对MERS 100的电容器充电的路径，基于检测到的负载电流的量来确定关闭MERS 100的反向导通型半导体开关的定时。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011223832A

公开(公告)日：2011-11-04

申请号：JP2010093163

申请日：2010-04-14

Applicant: Merstech Inc ,  株式会社MERSTech

Inventor： KATO KYOHEI

IPC: H02M7/48 ,  G05F1/70

Abstract: PROBLEM TO BE SOLVED: To provide a power conversion device and a control method that stably supply electric power to a load using an MERS even if a voltage has a zero crossing owing to noise.SOLUTION: The power conversion device 10 comprises the MERS 100 and a control circuit 200, and the MERS 100 is connected between an inductive load LD and an AC power source VS. The control circuit 200 starts counting in response to the zero crossing of the output voltage of the AC power source VS, and performs ON/OFF control over self arc-extinguishing elements S1 to S4 of the MERS 100 according to the count value. Here, the control circuit 200 resets its count value each time the output voltage of the AC power source VS has a zero crossing in every cycle, and restarts counting.

Abstract translation: 要解决的问题：提供一种功率转换装置和控制方法，即使电压由于噪声而具有零交叉，也可以使用MERS稳定地向负载提供电力。 电源转换装置10包括MERS100和控制电路200，并且MERS 100连接在感性负载LD和AC电源VS之间。 控制电路200响应于交流电源VS的输出电压的过零点开始计数，并且根据计数值对MERS 100的自灭弧元件S1至S4进行ON / OFF控制。 这里，每当AC电源VS的输出电压在每个周期中具有零交叉时，控制电路200重置其计数值，并且重新开始计数。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011147300A

公开(公告)日：2011-07-28

申请号：JP2010007508

申请日：2010-01-15

Applicant: Merstech Inc ,  株式会社MERSTech

Inventor： KITAHARA TADAYUKI ,  FUKUDA SHIRO

IPC: H02M7/48 ,  H02P27/08 ,  H05B6/06

CPC classification number: H02M3/158 ,  H02M2001/008 ,  H02M2003/1555 ,  H02P27/08 ,  H05B6/06

Abstract: PROBLEM TO BE SOLVED: To provide a power inverter which can supply power in parallel to a plurality of loads from a single power supply, has small circuit scale and can adjust the supplied power. SOLUTION: A power inverter 1 is composed of a plurality of driving circuits 10i connected in parallel with a DC power supply 2. Each of the driving circuits 10i includes: a DC reactor Ldci connected to the DC power supply 2 in series; a magnetic energy regeneration switch Bi including a plurality of reverse conducting semiconductor switches SWUi, SWVi, SWYi, SWXi having DC input ends to which a series circuit of the DC power supply 2 and the DC reactor Ldci and a capacitor CMi are connected and AC output ends to which a load LDi is connected; and a control circuit 13i. The control circuit 13i turns on and off the reverse conducting semiconductor switches SWUi, SWVi with a duty ratio of 0.5, and adjusts the duty ratio of the reverse conducting semiconductor switches SWYi, SWXi to 0.5 or less. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：为了提供能够从单个电源并联供给多个负载的电力的电力逆变器，具有小的电路规模并且可以调节所供电的功率。 解决方案：电力逆变器1由与直流电源2并联连接的多个驱动电路10i组成。每个驱动电路10i包括：串联连接到直流电源2的直流电抗器Ldci; 具有直流电源2和直流电抗器Ldci的串联电路和电容器CMi的DC输入端的多个反向导通半导体开关SWUi，SWVi，SWYi，SWXi的磁能再生开关Bi连接，AC输出 连接负载LDi的端部; 和控制电路13i。 控制电路13i以占空比为0.5的方式导通和关断反向导通半导体开关SWUi，SWVi，并将反向导通半导体开关SWYi，SWXi的占空比调整至0.5以下。 版权所有（C）2011，JPO＆INPIT