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1. 发明专利

JPH07107735A VARIABLE-FREQUENCY POWER SUPPLY DEVICE 失效
公开(公告)号：JPH07107735A
公开(公告)日：1995-04-21
申请号：JP24917793
申请日：1993-10-05
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOBAYASHI YOSHIYUKI
IPC分类号： H02M1/14
摘要： PURPOSE:To restrain higher harmonics on the input side by providing a higher harmonic restrainer. CONSTITUTION:A variable-frequency power supply device is composed of an input power supply 1, a converter device 2, a higher harmonic restraining device 11 connected in parallel with the converter device 2, a smoothing circuit 3 mounted on a DC circuit, an inverter device 4 and load 5 being connected on the output side of the inverter device and receiving the supply of the power supply. The power-supply voltage of the input power supply I is converted into DCs by the converter device 2. A higher harmonic generated on the input side at the time of the conversion is restrained by the higher harmonic restraining device 11, and power-supply waveform distortion is inhibited. When the power-supply voltage of the input power supply 1 is converted into DCs, a ripple is generated, but the ripple is absorbed by the smoothing device 3. DC voltage, from which the ripple is removed, is converted into an AC power supply having arbitrary frequency by the inverter device, and fed to the load 5. Accordingly, the effect of the restraint of the higher harmonic generated on the input side is displayed.

2. 发明专利

JPS59174906A Load adjusting device 失效
标题翻译：负载调整装置
公开(公告)号：JPS59174906A
公开(公告)日：1984-10-03
申请号：JP5088583
申请日：1983-03-24
申请人： Mitsubishi Electric Corp
发明人： KOBAYASHI YOSHIYUKI
IPC分类号： G05B11/32 , B29C47/92
CPC分类号： B29C47/92 , B29C47/0009 , B29C2947/92504
摘要： PURPOSE:To adjust the controlled variable of a control device of previous stage in accordance with the deviation between the controlled variable of a load controlling device of next stage and a set controlled variable so as to control a load stably, by introducing the deviation to a device which is used for an extruder, etc., for controlling load constantly. CONSTITUTION:Loading device of previous stage 5 and next stage 7 are installed to a load controlling device used for an extruder, etc., and thyristor devices 4 and 6 and speed setters 1 and 2 are connected to each device 5 and 7, respectively. Moreover, an ammeter 3 and current exchanger 9 are connected to the device 7. The quantity of an electric current flowing to the device 7 is detected by the ammeter and the controlled variable of the device 7 is converted into a voltage signal by the exchanger in accordance with the quantity of current. The controlled variable converted into the voltage signal by the exchanger 9 is compared with a value previously set at a load setter 8 at an operational amplifier 10 and an operational result is added to the thyristor device 4 and the speed of the device of previous stage 5 is controlled. In this way, the stability of the load is improved and highly accurate control is made possible.
摘要翻译：目的：根据下一级负载控制装置的控制变量与设定控制变量之间的偏差来调整前一级控制装置的控制变量，以便稳定地控制负载，通过将偏差引入到用于挤出机等的用于不断控制负载的装置。构成：将前一级5和下一级7的装载装置安装到用于挤出机等的负载控制装置中，并且晶闸管装置4和6以及速度调节器1和2分别连接到每个装置5和7。此外，电流表3和电流交换器9连接到装置7.流过装置7的电流量由电流表检测，装置7的受控变量由交换器转换成电压信号按照当前的数量。由交换器9转换成电压信号的受控变量与在运算放大器10处预先设定在负载设定器8处的值进行比较，将运算结果加到晶闸管装置4上，并将前一级5的装置的速度被控制。以这种方式，提高了负载的稳定性，并且实现了高精度的控制。

3. 发明专利

JPH06105484A UNINTERRUPTIBLE POWER SOURCE 失效
公开(公告)号：JPH06105484A
公开(公告)日：1994-04-15
申请号：JP24792892
申请日：1992-09-17
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOBAYASHI YOSHIYUKI
IPC分类号： G05F1/70 , H02J3/01 , H02J3/18 , H02J3/38 , H02J3/50 , H02J9/08
摘要： PURPOSE:To eliminate power interruption at the time of reducing purchasing power by providing a reactive power compensator for compensating the increase in reactive power due to overcurrent at the time of the power interruption. CONSTITUTION:When a power purchasing facility 1 is interrupted, a power purchasing interruption detector 5 is operated, and a breaker 3 is opened. All loads 6 are connected to a non-utility generator facility 2 in this state, and hence the facility 2 becomes an overload state. Therefore, the reactive power of the load is increased. However, the reactive power is detected by signals from current transformers 12, 13 to instantaneously supply capacitive reactive power from a reactive power compensator 11, and hence the overcurrent is suppressed, and a voltage drop is also suppressed. Accordingly, a breaker 7 is opened while a breaker 4 opened by the overcurrent is held closed, and the loads 6 are separated, and hence even if the facility 1 is interrupted, the facility 2 can continue the operation. Thus, power interruption can be eliminated at the time of purchasing power interruption.

4. 发明专利

JP2003074937A Ventilator 有权
标题翻译：通风机
公开(公告)号：JP2003074937A
公开(公告)日：2003-03-12
申请号：JP2001263557
申请日：2001-08-31
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SHINNO ATSUSHI , KATAOKA TAKASHI , KOBAYASHI YOSHIYUKI
IPC分类号： F24F7/08 , F24F11/053
摘要： PROBLEM TO BE SOLVED: To provide a ventilator in which lowering of the exhaust air volume and adhesion of condensate to the outer surface is prevented.
SOLUTION: The ventilator comprises a supply air duct leading from an outdoor air inlet 1c to an indoor air outlet 1b through a heat exchanger 2, an exhaust air duct leading from an indoor air inlet 1a to an outdoor air outlet 1d through the heat exchanger 2, a supply fan 3 disposed in the supply air duct, an exhaust fan 4 disposed in the exhaust air duct, a controller 6 for controlling the supply fan 3 and the exhaust fan 4, and an outer air temperature detector 5 provided in the supply air duct. The controller 6 comprises an intermittent operation control means for repeating operation and stoppage of the supply fan 3 for a specified time when the outer air temperature is lower than a first set temperature but exceeds a second set temperature lower than the first set temperature, and a first class/third class switching control means for stopping the supply fan 3 when the outer air temperature is lower than the second set temperature, making a switch to third class ventilation and operating the supply fan 3 with a low air volume for a shortest time at a constant period in order to detect the outer air temperature.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种通风机，其中防止了排气量的降低和冷凝物对外表面的粘附。解决方案：通风机包括通过热交换器2从室外空气入口1c通向室内空气出口1b的供气管道，通过热交换器2从室内空气入口1a通向室外空气出口1d的排气管道设置在供气管道中的供风扇3，设置在排风管道中的排风扇4，用于控制供风扇3和排风扇4的控制器6和设置在供气口中的外气温度检测器5 管。控制器6包括间歇运行控制装置，用于在外部空气温度低于第一设定温度但超过低于第一设定温度的第二设定温度的指定时间内重复供应风扇3的操作和停止，并且一级/三级切换控制装置，用于当外部空气温度低于第二设定温度时停止供应风扇3，切换到第三级通风，并以最短时间以低风量操作供应风扇3 为了检测外部空气温度的恒定周期。

5. 发明专利

JP2003074936A Heat exchanging ventilator 审中-公开
标题翻译：热交换通风机
公开(公告)号：JP2003074936A
公开(公告)日：2003-03-12
申请号：JP2001261988
申请日：2001-08-30
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SHINNO ATSUSHI , KATAOKA TAKASHI , KOBAYASHI YOSHIYUKI
IPC分类号： F24F7/08
摘要： PROBLEM TO BE SOLVED: To obtain a heat exchanging ventilator in which the volume of air being ventilated is increased by lowering pressure loss in the ventilator while enhancing maintainability or serviceability.
SOLUTION: The heat exchanging ventilator comprises a passage for exhausting indoor air to the outdoors and a passage for supplying outdoor air to the indoors formed in a body casing 1, an exhaust fan 4 disposed in the exhaust passage, a supply fan 3 disposed in the supply passage, and a heat exchanger 2 disposed at the intersection of the exhaust passage and the supply passage wherein the exhaust fan 4 and the supply fan 3 are disposed on the downstream side of the heat exchanger 2.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：通过降低通气机中的压力损失，同时提高维护性或适用性，获得通风空气的体积增加的热交换换气机。解决方案：热交换通风机包括用于将室内空气排出到室外的通道和用于将室外空气供给到形成在主体壳体1中的室内的通道，设置在排气通道中的排气扇4，设置在排气通道以及设置在排气通道和供给通道的交叉部分处的热交换器2，其中排气扇4和供应风扇3设置在热交换器2的下游侧。

6. 发明专利

JPH08103025A LOAD MANAGEMENT CONTROLLER 失效
公开(公告)号：JPH08103025A
公开(公告)日：1996-04-16
申请号：JP23791494
申请日：1994-09-30
申请人： MITSUBISHI ELECTRIC CORP
发明人： TERADA MAKOTO , IYODA ISAO , KOBAYASHI YOSHIYUKI , IWAMARU AKIHITO
IPC分类号： H02J3/12 , H02J3/14 , H02J3/16 , H02J3/18
摘要： PURPOSE: To eliminate voltage deviation of a system voltage regulation and to generally rationally manage it by preventing the frequent tap switching operation of a transformer in a power receiving end substation of a system. CONSTITUTION: The load management controller comprises a controller 10 which estimates a system reactance by calculating and deciding by using a voltage, reactive power change generated from the result of the change in a system voltage and a power flow state, controlling the operation in relation to the use and excluding operation of the tap switching operation of a transformer 2 and a reactive power supply unit 4 while using the estimated system reactance, and falling the voltage and the power factor of a power receiving side system within a desired range.

7. 发明专利

JPH04331422A LAG REACTIVE POWER COMPENSATOR 失效
公开(公告)号：JPH04331422A
公开(公告)日：1992-11-19
申请号：JP9840891
申请日：1991-04-30
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOBAYASHI YOSHIYUKI
IPC分类号： G05F1/70 , H02J3/01 , H02J3/18
摘要： PURPOSE:To realize a lag reactive power compensator having high performance and a low cost by effectively combining a capacitor type and an active filter type. CONSTITUTION:A capacitor unit 3 in which capacitors are formed to be able to be connected or disconnected at a group capacity unit, and an active filter unit 4 having at least the same capacity as the group capacity, are connected in parallel with a load 2. A control regulator 7 detects a lag reactive power and a harmonic current and a harmonic capacity from outputs of a voltage transformer 5 and a current transformer 6, and sends a control command signal to the units 3 and 4. Thus, a reactive power control having a high responding speed substantially equal to that of an active filter type is performed, and an effect of suppressing a harmonic wave is also provided. A price rise when compared with a capacitor type is small.

8. 发明专利

JPH0496655A INVERTER DEVICE 失效
公开(公告)号：JPH0496655A
公开(公告)日：1992-03-30
申请号：JP20821890
申请日：1990-08-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOBAYASHI YOSHIYUKI
IPC分类号： H02M7/06 , H02M1/12
摘要： PURPOSE:To remove harmonic currents generated in the input side and besides to prevent the generation of condensive reactive power too at the time of light loads, by detecting the harmonic currents generated on the input side, and by canceling these harmonic currents supplying harmonic currents with opposite phases, to the electric path. CONSTITUTION:A current transformer 6 on the input side detects harmonic currents generated at the time of conversion from an AC signal to a DC signal by a diode stack 2, or harmonic currents contained in the AC signal from an input terminal 1, and transmits them to an inverter filter 7 as its inputs. As the inverter filter 7 applies harmonic currents having opposite phases to the detected harmonic currents to the input side of the diode stack 2, the harmonic currents appeared on the input side of the diode stack 2 at first are canceled and removed substantially. Besides, as the inverter filter 7 is not a capacitive load resonance with the system and condensive reactive power are not generated. Accordingly, high-precision devices can be obtained.

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