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21. 发明专利

JPH01160365A POWER CONVERTER 失效
公开(公告)号：JPH01160365A
公开(公告)日：1989-06-23
申请号：JP31607587
申请日：1987-12-16
申请人： HITACHI LTD
发明人： KIMURA AKIRA , NAKADA KIYOSHI , NAKAMURA KIYOSHI , MIYAKE WATARU
IPC分类号： H02M7/155 , C05F17/00 , C05F17/02 , H02K7/06
摘要： PURPOSE:To provide economical and lightweight device by using common control signal to control multiple PWM converter. CONSTITUTION:On a power converter, AC voltage (VSO) from AC power supply 3 is applied to the transformer 4, on which to the devided two secondary winding 4A-4B of its secondary, the converter 1-2 are connected each other through the reactor 5-6 respectively. The DC terminal of the converter 1-2 supply DC voltage (Vd) through the smoothing capacitor 7 to the load 8. The deviated signal of DC voltage (Vd) is given to the voltage regulator 9 and becomes the reference signal of peak value (Im). On the other hand, AC voltage (VSO) is added to synchronizing signal generator 10, converted to the synchronizing signal (SY), given to the multiplier 11 and becomes input current reference signal (IS). Furthermore, the gate signal for convertor 1-2 is generated by adding this deviated signal to the current regulator 12 and converting to the voltage reference (eil) and through the carrier generator 13, 16 and the gate circuit 14, 17.

22. 发明专利

JPS62217808A MONOPHASE AC ELECTRIC ROLLING STOCK 失效
公开(公告)号：JPS62217808A
公开(公告)日：1987-09-25
申请号：JP5683186
申请日：1986-03-17
申请人： HITACHI LTD
发明人： ISHIDA TOSHIHIKO , NAKAMURA KIYOSHI , TAMURA KAORU , MIYAKE WATARU , NAKADA KIYOSHI
IPC分类号： B60L1/00 , B60L9/00 , B60L9/12 , H02M1/12 , H02M7/02
摘要： PURPOSE:To reduce the generated higher harmonics to all the unit integration, by operating all the converters contained in n units of conversion units with carrier waves of mutually different phases. CONSTITUTION:A train 10 composed of AC electric rolling stocks has got 100-500 power conversion units in pulse width modulation method. Each conversion unit 100-500 has got converters 102, 103-502 and 503 where the AC power is supplied through pantographs 11 and 12. A unit phase reference is given to unit phase resistors 112-512 from a unit phase distributor 13 or 15. Chopping carrier waves with a predetermined phase against the unit phase reference are given to the converters 102, 103-502 and 503. Thus the hither harmonics generated by rolling stocks can be reduced.

23. 发明专利

JPS61132002A Controller for electric railcar 失效
标题翻译：电动雷达控制器
公开(公告)号：JPS61132002A
公开(公告)日：1986-06-19
申请号：JP25188884
申请日：1984-11-30
申请人： Hitachi Ltd
发明人： MIYAKE WATARU
IPC分类号： B60L9/12 , H02M7/12 , H02M7/19
CPC分类号： B60L9/12 , B60L2200/26
摘要： PURPOSE:To eliminate harmonic waves in a main motor current by providing limiters for limiting the amplitudes of input signals to the prescribed value or lower at every phase shifters of respective rectifiers. CONSTITUTION:An electromotive force induced in the secondary winding of a transformer 11 is rectified by rectifiers 12, 13 controlled in the phases by phase shifters 6, 7, and the sum of the outputs is applied to main motors 14, 15. A deviation between main motor current IM and a target pattern current IP is obtained by a comparator 1, and applied through limiters 4, 5 to the phase shifters 6, 7. A multiplexer 8 selects a signal (in which the phase is stopped) of the output signal of the limiters 4, 5 as the input of the comparator 1. Thus, the phase stop by a notch command can be performed at every rectifier to reduce the harmonic waves presented in the current of the main motor of an electric railcar.
摘要翻译：目的：通过提供限制器来消除主电机电流中的谐波，用于将各个整流器的每个移相器的输入信号的幅度限制在规定值以下。构成：在变压器11的次级绕组中感应的电动势由整流器12,13整流，整流器12,13由移相器6,7相控制，并且输出的总和被施加到主电动机14,15。主电动机电流IM和目标模式电流IP由比较器1获得，并通过限制器4,5施加到移相器6,7。多路复用器8选择输出信号（其中停止相位的信号）作为比较器1的输入。因此，可以在每个整流器处执行通过陷波指令的相位停止，以减少在电气轨道车辆的主电动机的电流中呈现的谐波。

24. 发明专利

JP2010161925A Device for controlling electric rolling stock and method of controlling electric power converter 有权
标题翻译：用于控制电动滚筒的装置和控制电力转换器的方法
公开(公告)号：JP2010161925A
公开(公告)日：2010-07-22
申请号：JP2010091804
申请日：2010-04-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OI KENTARO , MIYAKE WATARU , ISHIDA SEIJI
IPC分类号： H02P27/06 , B60L3/00 , B60L9/18
摘要： PROBLEM TO BE SOLVED: To effectively suppress a specified frequency component generated in a retrace line current. SOLUTION: The rotational angular speed ωr of a motor is detected, a torque correction command ΔT* is operated on the basis of a specified frequency component included in the ωr, a d-axis voltage correction command dVd*, a q-axis voltage correction command dVq*, a q-axis current correction command dIq*, and an angular speed correction command dω1* are operated on the basis of the torque correction command ΔT*, and these correction commands are added to a d-axis voltage command, a q-axis voltage command, a q-axis current command, and an angular speed command respectively to control a DC current of a first power converter. By this, the specified frequency component included in the DC current is canceled, and the specified frequency component is effectively suppressed. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：有效地抑制在回扫线电流中产生的指定频率分量。解决方案：检测电机的旋转角速度ωr，基于包括在ωr中的指定频率分量，d轴电压校正命令dVd *，q轴电压校正命令dVd *，q- 轴电压校正命令dVq *，q轴电流校正命令dIq *和角速度校正命令dω1*基于扭矩校正命令ΔT*进行操作，并且将这些校正命令加到d轴电压命令，q轴电压指令，q轴电流指令和角速度指令，以控制第一功率转换器的直流电流。由此，包含在直流电流中的指定频率分量被消除，并且有效地抑制了指定的频率分量。版权所有（C）2010，JPO＆INPIT

25. 发明专利

JP2006288198A Power conversion apparatus for electric vehicle 审中-公开
标题翻译：电动车用电力转换装置
公开(公告)号：JP2006288198A
公开(公告)日：2006-10-19
申请号：JP2006168222
申请日：2006-06-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOJIMA TETSUO , TOYODA EIICHI , NAKADA KIYOSHI , MIYAKE WATARU , TERUNUMA MUTSUHIRO , SUZUKI MASAHITO , INARIDA SATOSHI
IPC分类号： B60L9/18 , H02P27/06
CPC分类号： Y02T10/7241
摘要： PROBLEM TO BE SOLVED: To make noise resistance compatible with the tendency to miniaturize the size, even under an environment where high voltage of a main circuit exists, like electric vehicles and having a large noise level generated by the main circuit. SOLUTION: The power conversion apparatus for the electric vehicles is provided with the main circuit, connected to a DC power source via a filter capacitor for converting DC power into three-phase AC power, a three-phase AC motor for driving the electric vehicle, a current detection means for respectively detecting an AC current of three-phase parts output from the main circuit to the AC motor, and a control unit for controlling the main circuit to be controlled, based on the detected information from the current detection means. The respective current detection means is constituted to be built in with a means for detecting the instantaneous value current in a part to be detected, an A/D conversion means for performing A/D conversion, and a serial interface for serially outputting by time-devision the converted digital signal, the serial interface of each current detection means and the control unit are connected by a serial transmission cable, detection information from the current detection means to the control unit is transmitted serially with a digital signal. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：即使在存在主电路的高电压的环境中，如电动车辆并且由主电路产生的噪声水平较高，使得噪声抵抗兼容于尺寸小型化的趋势。解决方案：电动车辆的动力转换装置设置有主电路，其经由用于将直流电力转换为三相交流电的滤波电容器连接到直流电源;三相交流电动机，用于驱动电动车辆，用于分别检测从主电路输出到AC电动机的三相部分的AC电流的电流检测装置，以及用于根据来自电流检测的检测信息控制要控制的主电路的控制单元手段。相应的电流检测装置构成为内置有用于检测待检测部分中的瞬时值电流的装置，用于执行A / D转换的A / D转换装置和用于通过时间序列串行输出的串行接口，设定转换后的数字信号时，各电流检测单元和控制单元的串行接口通过串行传输电缆连接，从电流检测单元向控制单元的检测信息用数字信号串行发送。版权所有（C）2007，JPO＆INPIT

26. 发明专利

JP2006025477A Train control method and rolling stock controller 有权
标题翻译：火车控制方法和滚动控制器
公开(公告)号：JP2006025477A
公开(公告)日：2006-01-26
申请号：JP2004199080
申请日：2004-07-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： AKIYAMA HIROYUKI , MIYAKE WATARU
IPC分类号： B60L15/20 , B60L15/40
CPC分类号： Y02T10/7275
摘要： PROBLEM TO BE SOLVED: To provide an energy saving operation method of rolling stock in which various losses are minimized while ensuring traveling required for a composition of train, and to provide a rolling stock controller. SOLUTION: The rolling stock controller for controlling a train including a plurality of vehicles having a power unit and a power unit controller in one composition comprises a means for delivering a driving force command value Iut and a unit open command Iuc or a unit open release command Iucr individually to each power unit 22, and a means for comparing the maximum driving force of each power unit with a driving force required at that moment in time. When a decision is made that the driving force required at that moment in time is lower than the sum of maximum driving force of driving units being operated, the unit open command for stopping operation of the power unit is delivered to each power unit stepwise. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够确保各种损失最小化的车辆的节能运行方法，同时确保列车组成所需的行驶，并提供车辆控制器。解决方案：一种组合中用于控制包括具有动力单元和动力单元控制器的多个车辆的列车的车辆控制器包括用于传送驱动力命令值Iut和单元打开命令Iuc或单元的装置将各个动力单元22的开启释放指令Iucr单独地分配到各动力单元的最大驱动力与该时刻所需的驱动力进行比较的装置。当决定在该时刻所需的驱动力低于正在操作的驱动单元的最大驱动力的总和时，用于停止动力单元的操作的单位打开命令被逐步传送到每个动力单元。版权所有（C）2006，JPO＆NCIPI

27. 发明专利

JP2005033997A Power converting device 有权
标题翻译：电源转换器件
公开(公告)号：JP2005033997A
公开(公告)日：2005-02-03
申请号：JP2004238473
申请日：2004-08-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOJIMA TETSUO , TOYODA EIICHI , NAKADA KIYOSHI , MIYAKE WATARU , TERUNUMA MUTSUHIRO , SUZUKI MASAHITO , INARIDA SATOSHI
IPC分类号： B60L3/00 , H02M7/48
CPC分类号： Y02T10/7241
摘要： PROBLEM TO BE SOLVED: To provide a power converting device that makes soundproof property compatible with downsizing under the environment where main circuit voltage is high like electric cars and the noise level generated by the main circuit is high. SOLUTION: In a power converting device that is provided with the main circuit converting direct current into alternating current and vice versa, a controlling device controlling the main circuit, and a current detecting means detecting the alternating current in the above-mentioned main circuit, and sends the above-mentioned detected current to the above-mentioned controlling device as controlling information, the power converting device is characterized by the above-mentioned current detecting means having both built-in means to detect an alternating current value as an analogue signal by using the effect of a hole equipped with a part to be detected and A/D converting means to convert the detected analogue signal into a digital signal and the detected information from the detecting means to the controlling means being sent with the digital signal. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种电力转换装置，其在电动汽车的主电路电压高的环境下与兼容小尺寸的电力转换装置，并且由主电路产生的噪声电平较高。解决方案：在设置有主电路将直流转换为交流电的反相装置的电力转换装置中，控制主电路的控制装置和检测上述主电路中的交流电的电流检测装置电路，并将上述检测电流发送到上述控制装置作为控制信息，功率转换装置的特征在于上述电流检测装置具有检测交流电流值作为模拟的两个内置装置通过使用配备有待检测部分的孔的效果和A / D转换装置将检测到的模拟信号转换为数字信号并将检测到的信息从检测装置传送到控制装置的数字信号发送的信号。版权所有（C）2005，JPO＆NCIPI

28. 发明专利

JP2005027499A Power conversion apparatus 有权
标题翻译：功率转换装置
公开(公告)号：JP2005027499A
公开(公告)日：2005-01-27
申请号：JP2004238428
申请日：2004-08-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOJIMA TETSUO , TOYODA EIICHI , NAKADA KIYOSHI , MIYAKE WATARU , TERUNUMA MUTSUHIRO , SUZUKI MASAHITO , INARIDA SATOSHI
IPC分类号： B60L9/18 , H02M1/08 , H02M7/48 , H02M7/79
CPC分类号： Y02T10/7241
摘要： PROBLEM TO BE SOLVED: To provide a power conversion apparatus compatible with noise resistance and miniaturization even under the environment of a large noise level in a main circuit with its voltage high such as in an electric rolling stock. SOLUTION: The power conversion apparatus comprises the main circuit converting DC power into AC power or reversely, a control device controlling this main circuit, and a current detecting means for detecting a current in an AC power side in the main circuit. To transmit the detected current as control information to the control device, the current detecting means has a means for utilizing the Hall effect mounted in a detected part to detect an AC current value as an analog signal and housing an A/D converting means for converting the detected analog signal into a digital signal, and the power conversion apparatus transmits the detected information from the detecting means to the control device by the digital signal. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使在诸如电动车辆的电压高的主电路中，即使在大的噪声电平的环境下，也提供与噪声抵抗和小型化兼容的电力转换装置。解决方案：电力转换装置包括主电路将直流电转换为交流电源或反向转换，控制该主电路的控制装置以及电流检测装置，用于检测主电路中交流电源侧的电流。为了将检测到的电流作为控制信息发送到控制装置，电流检测装置具有利用安装在检测部分中的霍尔效应来检测AC电流值作为模拟信号的装置，并且容纳用于转换的A / D转换装置检测到的模拟信号成为数字信号，电力转换装置通过数字信号将检测信息从检测装置发送到控制装置。版权所有（C）2005，JPO＆NCIPI

29. 发明专利

JP2000217202A CONTROLLER OF AC ELECTRIC VEHICLE 失效
公开(公告)号：JP2000217202A
公开(公告)日：2000-08-04
申请号：JP1427299
申请日：1999-01-22
申请人： HITACHI LTD
发明人： TERASAWA KIYOSHI , MIYAKE WATARU , INARIDA SATOSHI , OZAWA HIROYUKI , SAGAWA SATORU
IPC分类号： H02M7/23 , B60L9/24 , H02M1/12 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To reduce higher harmonic components generated in a power system by a PWM converter through the means of a PWM converter for reducing higher harmonic, without using a current detector or a filter and thereby reduce the cost. SOLUTION: PWM converters 4a, 4b execute a PWM control through control circuits 11a, 11b with a fundamental wave of an AC voltage, which should be generated at the input side of the converters as a modulated wave and then perform a PWM operation based on gate signal obtained. A controller 12 of a PWM converter for reducing higher harmonics subtracts modulated waves fetched from the controllers 11a, 11b from the gate signals also fetched from the controllers 11a, 11b to obtain higher harmonic components which are desired to be canceled. The phase of the higher harmonic components is reversed. With 180 deg. out-of-phase waves as the modulated waves for the PWM converter 8 for reducing higher harmonics, a PWM control os executed. Then, higher harmonic waves, which have the same frequencies as the higher harmonic components generated by the PWM converters 4a, 4b which are desired to be canceld but have reverse phase are generated at the primary side of a main transformer 3 so as to cancel the higher harmonic components.

30. 发明专利

JPH11113263A POWER CONVERTER 失效
公开(公告)号：JPH11113263A
公开(公告)日：1999-04-23
申请号：JP26546797
申请日：1997-09-30
申请人： HITACHI LTD
发明人： INARIDA SATOSHI , SUZUKI MASAHITO , MIYAKE WATARU
IPC分类号： H02M7/219 , H02M7/12
摘要： PROBLEM TO BE SOLVED: To improve the control response property, for example, to a sudden change in a load, by controlling a neutral point clamping converter based on the sum and difference of the outputs of first and second DC voltage control means. SOLUTION: In a device, DC voltages Vp and Vn of smoothing capacitors Cp and Cn being detected by DC voltage detectors 81 and 82 are subtracted from DC voltage command values Vp' and Vn' of the smoothing capacitors Cp and Cn by subtractors 30 and 31, and the output is inputted to DC voltage controllers AVRp and AVRn. Then, effective values Ip' and In' of an AC current being required for allowing the voltage of the smoothing capacitors Cp and Cn to coincide with the command value are generated, power flowing into the smoothing capacitors Cp and Cn is independently controlled, and the voltages Vp and Vn of the smoothing capacitors Cp and Cn are independently controlled to the command values Vp' and Vn', thus independently controlling first and second smoothing capacitor voltages and hence improving a response property, for example, to the sudden change of a load.

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