公开(公告)号：JP2005312289A

公开(公告)日：2005-11-04

申请号：JP2005082019

申请日：2005-03-22

Applicant: Ebara Corp ,  株式会社荏原製作所

Inventor： INOUE OSAYUKI ,  IRIE KIICHI ,  UCHIMURA TOMOYUKI ,  KATO HIROYUKI ,  SATO MOTOYASU

IPC: H02J3/38 ,  H02P9/04 ,  H02P9/08

Abstract: PROBLEM TO BE SOLVED: To provide a power generating device that is excellent in responding to an emergency stop, and also that can maintain safety even in a power failure while taking in thermal energy available to the maximum extent. SOLUTION: This power generating device is provided with a steam generator 10 that evaporates an working medium M by exchanging heat with a heating medium H; an expanding machine 20 that expands the evaporated working medium to obtain mechanical power; a generator driven by the expanding machine to generate an AC voltage; a rectifier that converts the generated AC voltage into a DC voltage; an inverter 120 that converts the DC voltage to an AC voltage; and a controlling means 101 that controls an output AC current to a power system, in such a way that the DC voltage or the generated AC voltage reaches a prescribed voltage. A power generating device provided with a heater 130 on which the voltage generated by the generator acts and a switch 131 arranged in series to the heater is included. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种响应紧急停止的发电装置，并且即使在电力故障中也可以保持安全性，同时最大限度地获得可用的热能。 解决方案：该发电装置设置有通过与加热介质H进行热交换而使工作介质M蒸发的蒸汽发生器10; 膨胀机20，其使蒸发的工作介质膨胀以获得机械动力; 由膨胀机驱动的发电机产生交流电压; 将产生的交流电压转换为直流电压的整流器; 将直流电压转换为交流电压的逆变器120; 以及控制装置101，其以使得DC电压或所产生的AC电压达到规定电压的方式控制到电力系统的输出AC电流。 发电装置具有加热器130，发电机产生的电压作用在该加热器130上，并且包括与加热器串联布置的开关131。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2003307183A

公开(公告)日：2003-10-31

申请号：JP2003133685

申请日：2003-05-12

Applicant: Ebara Corp ,  Ebara Densan Ltd ,  株式会社荏原製作所 ,  株式会社荏原電産

Inventor： TATEISHI KAZUFUMI ,  TAKADA TSUTOMU ,  SATO MOTOYASU

IPC: F04B49/10 ,  G05B23/02

Abstract: PROBLEM TO BE SOLVED: To provide a water supply device which is equipped with a control board and a display device capable of monitoring remotely, the two being connected together through a very small number of wires, is easy to handle and is furnished with a low-cost control system requiring a smaller space. SOLUTION: The water supply device is equipped with the control board 13 including a central processing unit 14 to perform control of the operation and stop of a plurality of pumps in accordance with the pressure of the discharge side of each pump and a remote controlled display device 25 to make various indications of the water supply device and alarming remotely from the device, wherein the control board 13 has a communication function to transmit information or date to the display device 25 in conformity to a certain rule of communication and transmits the information or data according to a burst signal superposed on the power supply using a power cord 28 which supplies the power to the display device 25, while the remote controlled display device 25 is furnished with a power supply/signal separating circuit 53 to separate the power supply 32 from the burst signal, and the power cord connection part of the display device 25 is made out of polarity. COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：为了提供配备有能够远程监控的控制板和显示装置的供水装置，两者通过非常少量的电线连接在一起，易于处理和提供 具有需要较小空间的低成本控制系统。

解决方案：供水装置配备有包括中央处理单元14的控制板13，以根据每个泵的排出侧的压力执行多个泵的操作和停止的控制，以及远程 控制显示装置25进行供水装置的各种指示并从设备远程报警，其中控制板13具有根据某种通信规则将信息或日期传送到显示装置25的通信功能，并且传送 信息或数据根据叠加在电源上的突发信号，使用电源线28向显示装置25供电，而遥控显示装置25配备有电源/信号分离电路53以分离电源 从突发信号提供电源32，并且极性地形成显示装置25的电源线连接部分。 版权所有（C）2004，JPO

公开(公告)号：JP2003195957A

公开(公告)日：2003-07-11

申请号：JP2001395299

申请日：2001-12-26

Applicant: EBARA CORP ,  EBARA DENSAN LTD

Inventor： HIGAKI NOBUHIRO ,  TAI MASA ,  TAMURA HIROYUKI ,  ISHIHARA SEIICHI ,  SATO MOTOYASU

IPC: H01L31/042 ,  G05F1/67 ,  H02J7/35

Abstract: PROBLEM TO BE SOLVED: To provide a photovoltaic power generation system always operable at a maximum electric power point of a solar panel without depending on a solar battery characteristic and a load characteristic of a pump. SOLUTION: This photovoltaic power generation system has the solar panel 1, an inverter 2 for driving a load by converting output DC power of the solar panel 1 into AC power, and a control device 4 for controlling the inverter 2, and increases-decreases or maintains a frequency of the output AC power in the inverter 2 on the basis of a change in an electric power (P) - voltage (V) coordinate system of the DC power by measuring output DC power P and voltage V of the solar panel 1, and drives the load 3 at a variable speed so as to follow the maximum electric power point of the solar panel 1. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003047256A

公开(公告)日：2003-02-14

申请号：JP2001228478

申请日：2001-07-27

Applicant: Ebara Corp ,  Ebara Densan Ltd ,  株式会社荏原製作所 ,  株式会社荏原電産

Inventor： SATO MOTOYASU ,  ISHIHARA SEIICHI ,  TAMURA HIROYUKI ,  HIGAKI NOBUHIRO ,  TAI MASA

IPC: H02M7/48 ,  H02M7/537 ,  H02M7/5387

Abstract: PROBLEM TO BE SOLVED: To provide an inverter device of pulse width modulation control for supplying load current to a motor capable of stably compensating for an effect of dead time.
SOLUTION: This inverter device includes an inverter 1 for converting DC output of a DC power supply into AC output, a calculating device 2 for controlling the inverter, and a voltage detector 3 for detecting the polarity of voltage outputted from the inverter. The calculating device includes a pulse width modulation control unit 21, a polarity detector 22 for determining the polarity of load current based on the polarity of voltage in a dead time section detected by the voltage detector, a digital filter 23 for leveling the polarity detector output, and a compensation part 23 for outputting the dead time compensation amount of the inverter corresponding to the digital filter output.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：提供一种用于向能够稳定地补偿死区时间的效果的电动机提供负载电流的脉宽调制控制的逆变器装置。 解决方案：该逆变器装置包括用于将直流电源的直流输出转换为交流输出的逆变器1，用于控制逆变器的计算装置2以及用于检测从逆变器输出的电压的极性的电压检测器3。 计算装置包括：脉冲宽度调制控制部21，极性检测部22，用于根据由电压检测器检测的死区时间部分的电压极性决定负载电流的极性;数字滤波器23，用于使极性检测器输出 以及用于输出与数字滤波器输出对应的逆变器的死区补偿量的补偿部23。

公开(公告)号：JPH07327375A

公开(公告)日：1995-12-12

申请号：JP14092894

申请日：1994-05-31

Applicant: EBARA CORP

Inventor： TAKEUCHI TAKAO ,  HIRAIWA ICHIRO ,  SATO MOTOYASU ,  IIJIMA NAOKI

IPC: F04B49/06 ,  H02M7/48 ,  H02P27/06 ,  H02P7/63

Abstract: PURPOSE:To provide a compact apparatus for protecting a vacuum pump against an instantaneous interruption and an instantaneous voltage drop of the commercial power supply. CONSTITUTION:A DC/DC converter 17 for boosting DC voltage, a capacitor 18 for storing electric energy boosted and a drive element 16 are connected to DC portions 11 and 12 of an inverter for 3 for converting frequency and voltage from a commercial source, a detector 15 for voltage drop is connected to the commercial source, the switching of a drive element is controlled by the output of the detector 15, and power energy stored in the capacitor 18 is supplied to the DC portions 11 and 12 when an instantaneous interruption or instantaneous voltage drop has been detected.

公开(公告)号：JPH07102994A

公开(公告)日：1995-04-18

申请号：JP27773093

申请日：1993-10-08

Applicant: EBARA CORP

Inventor： SATO MOTOYASU ,  UEKUSA HISAO ,  NAKAMURA SHUZO

IPC: F02C6/00 ,  F02C9/28

Abstract: PURPOSE:To suppress tamperature rise of exhaust of a gas turbine by gradually increasing excitation when a load is applied to a generator. CONSTITUTION:In a control device for a gas turbine driving generator, an output voltage signal of a generator is compared to a reference voltage signal, and the differential signal is fed back to an excitation current control part for controlling the output voltage to be a specified value. A reference voltage signal Vs from a reference voltage generating part 4 is small when a load application is started, and increased to be a specified value as time passes according to rotational speed characteristics of the gas turbine in respect to the load. The output voltage signal of the generator detected by a voltage detecting part 1 is compared to the reference voltage signal from the reference voltage generating part 4 in an amplifier 4, and the differential signal is output to the excitation current control part 3.