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1. 发明专利

DE3508337A1 Device for the electromagnetic measurement of a load 未知
公开(公告)号：DE3508337A1
公开(公告)日：1985-11-21
申请号：DE3508337
申请日：1985-03-08
申请人： JAPAN NATIONAL RAILWAY , HITACHI ELECTR ENG , HITACHI LTD
发明人： KASHIWAYA KENJI , TAKESHITA KUNIO , ONO TOSHIYUKI , ITO MASAYUKI , SUGIMURA AKIJI , YAMADA TETSUO
IPC分类号： G01L1/00 , G01L1/12 , G01L3/10 , G01N27/82 , G01R33/12
摘要： Device for the electromagnetic measurement of a load, in which the load is measured in a magnetic component by detecting a magnetic anisotropy of the component, which is based on the fact that the magnetism of the component is altered by the magnetostrictive effect when the load occurs in the component. This device has measuring heads which are used to form a magnetic circuit to detect the magnetic anisotropy by direct contact with the component and are in the form of end sections of magnet cores of two excitation windings and a measuring winding or of an excitation coil and two measuring windings. The end sections are constructed in the shape of a hemisphere.

2. 发明专利

JP2012034452A Smart grid monitoring control method and device 有权
标题翻译：智能监控控制方法和设备
公开(公告)号：JP2012034452A
公开(公告)日：2012-02-16
申请号：JP2010170013
申请日：2010-07-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SEKOGUCHI MASAHIRO , FUKUI CHIHIRO , YAMADA TETSUO
IPC分类号： H02J3/38
CPC分类号： H02J3/38 , H02J2003/388
摘要： PROBLEM TO BE SOLVED: To provide a monitoring control method and device capable of stably and efficiently performing frequency control of distributed power supplies in a smart grid in coordination with a commercial power system.SOLUTION: The smart grid monitoring control device comprises a plurality of generators and loads, and is operated in cooperation with a commercial power system through a cooperation circuit breaker. The device includes a frequency control capability calculation unit which calculates a frequency control capability of a coordinated system using total power demand and a bus frequency, and an independent/cooperative operation detecting unit which calculates a frequency control capability of the commercial power system from the frequency control capability of the system from the frequency control capability calculation unit, for determining cooperative or independent operation based on the magnitude of the capability.
摘要翻译：要解决的问题：提供一种能够与商用电力系统协调地稳定且有效地执行智能电网中的分布式电力的频率控制的监视控制方法和装置。智能电网监控控制装置包括多个发电机和负载，并通过协作断路器与商用电力系统协同工作。该装置包括频率控制能力计算单元，其使用总功率需求和总线频率来计算协调系统的频率控制能力，以及独立/协作操作检测单元，其从频率计算商用电力系统的频率控制能力来自频率控制能力计算单元的系统的控制能力，用于基于能力的大小来确定协作或独立操作。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2011114956A Stable-operation control device for micro grid 审中-公开
标题翻译：用于微网的稳定操作控制装置
公开(公告)号：JP2011114956A
公开(公告)日：2011-06-09
申请号：JP2009269478
申请日：2009-11-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SEKOGUCHI MASAHIRO , FUKUI CHIHIRO , YAMADA TETSUO
IPC分类号： H02J3/38 , H02J13/00 , H02P9/04
CPC分类号： Y02E40/72 , Y04S10/12
摘要： PROBLEM TO BE SOLVED: To provide an effective and appropriate control method that stably and efficiently executes frequency control of distributed power supplies.
SOLUTION: A control method for distributed power supplies is configured as follows. When executing power fluctuation compensation by cooperatively controlling distributed power supplies respectively having following performance to changes in power demand, time-series data of load variations to be compensated and frequency variations are statistically analyzed. Consequently, the load variations are separated into controllable components and unpredictable load variations in frequency bands so as to maximally reduce an amount of compensation by making any one of the respective distributed power supplies share the load variations. The magnitude of the load variations to be shared and compensated by each distributed power supply is set so as to control the output of each distributed power supply, thereby compensating unpredictable random load variations in the frequency bands.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种稳定有效地执行分布式电源的频率控制的有效和适当的控制方法。解决方案：分布式电源的控制方法如下。通过协同控制对功率需求变化具有以下性能的分布式电源进行功率波动补偿时，统计分析要补偿的负载变化的时间序列数据和频率变化。因此，负载变化被分成可控组件和频带中不可预测的负载变化，以便通过使相应的分布式电源中的任一个共享负载变化来最大限度地减少补偿量。设定由各个分布式电源共享和补偿的负载变化的大小，以便控制每个分布式电源的输出，由此补偿频段中的不可预测的随机负载变化。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JPH0543247B2 失效
公开(公告)号：JPH0543247B2
公开(公告)日：1993-07-01
申请号：JP803987
申请日：1987-01-19
申请人： RAILWAY TECHNICAL RES INST , HITACHI LTD , HITACHI ELECTR ENG
发明人： FUJIMORI SOJI , SATO YOSHIHIKO , MATSUMOTO KOICHI , YAMADA TETSUO , SUGIMURA SHUJI , ITO MASAYUKI
IPC分类号： G01B11/24 , E01B35/00 , G01B21/00 , G01B21/20

5. 发明专利

JPS62222111A METHOD FOR MEASURING DEVIATION OF LONG WAVELENGTH TRACK 失效
公开(公告)号：JPS62222111A
公开(公告)日：1987-09-30
申请号：JP5252386
申请日：1986-03-12
申请人： RAILWAY TECHNICAL RES INST , HITACHI LTD , HITACHI ELECTR ENG
发明人： TAKESHITA KUNIO , ITO MASAYUKI , YAMADA TETSUO , KISHIMOTO SATORU , SUGIMURA SHIYUUJI
IPC分类号： G01B21/00 , B61K9/08
摘要： PURPOSE:To enable inexpensive and safe measurement with good accuracy, by connecting two dual type vehicles and providing a relative displacement detection mechanism to the connection part. CONSTITUTION:Vehicle bodies 1, 2 connected advance in the direction shown by an arrow on a rail 3 and the up-and-down displacement between the vehicle bodies 1, 2 and the axle boxes of wheels is detected by a detector 6. A detector 7 detects up-and-down displacement from the relative displacements between the vehicle bodies 1, 2 and detectors 8-1, 8-2 mounted at an interval H in an up-and-down direction detect front-and-back displacements x1, x2. If the distance from the left end of the vehicle body 2 to the axle box 5-4 is set to lA, the distance up to the axle box of the wheel 4-5 to lB and the distances from the bottom side of the vehicle body 2 to the axle box 5-4 and the axle box of the wheel 4-5 to (c), (d), the height differences hA, hB between the extending line 9 of the bottom side of the vehicle body 1 and the bottom sides of the vehicle body 2 at the positions of the axle box 5-4 and the axle box of the wheel 4-5, height deviation (h) when wheels 4-1, 4-2, 4-4 are used and height deviation hL when wheels 4-1, 4-3, 4-5 are used can be respectively operated.

6. 发明专利

JPS60260175A POWER SUPPLY FOR LASER OSCILLATOR 失效
公开(公告)号：JPS60260175A
公开(公告)日：1985-12-23
申请号：JP11460384
申请日：1984-06-06
申请人： HITACHI LTD
发明人： MAEDA MASAYOSHI , YAMADA TETSUO
IPC分类号： H01S3/097
摘要： PURPOSE:To reduce the capacitance of a power supply by a method wherein the selective usage of the optimum resistance value of a stabilized resistor is made possible following the change in operational condition of a laser oscillator. CONSTITUTION:One lead wire of a voltage generating device 1 is connected to the electrode 4 of a laser oscillator 3 through the intermediary of a stabilized resistor 2. The other lead wire is directly connected to the electrode 4 of the laser oscillator, and they constitute a closed loop. An arbitrary point of the stabilized resistor 2 is connected to a switching device 5, and the other point is connected between the stabilized resistor 2 and the electrode 4. The two resistance values of large and small can be obtained for the stabilized resistor 2 by performing an opening and closing operation on the switching device 5. As the condition of operation is monitored and the stabilized resistance value can be switched to large or small value, the laser output can be increased from the time of operation mode at high resistance value without increasing the capacitance of the power supply at low resistance operation mode. As a result, the laser oscillator can be made smaller in size in a high degree and the cost of production can also be cut down.

7. 发明专利

JPS61138134A Electromagnetic stress measuring instrument 失效
标题翻译：电磁应力测量仪器
公开(公告)号：JPS61138134A
公开(公告)日：1986-06-25
申请号：JP25918484
申请日：1984-12-10
申请人： Hitachi Electronics Eng Co Ltd , Hitachi Ltd , Japanese National Railways
发明人： KASHIWATANI KENJI , ITO MASAYUKI , YAMADA TETSUO
IPC分类号： G01R33/12 , G01L1/00 , G01L3/10 , G01N27/72
CPC分类号： G01L3/102
摘要： PURPOSE:To obtain an accurate and reliable measurement result by implanting three coils and a probe in a common magnetic material substrate with high magnetic permeability and bringing the probe into contact even when the surface of a magnetic structure body to be measured is curved. CONSTITUTION:Cores 2a, 2b, and 2c of 'Permalloy(R)', etc., wound with coils 3a, 3b, and 3c are arranged on the common core base 1 made of, for example, 'Permalloy(R)' at respective vertexes of a rectangular equilateral triangle whose two isosceles sides cross each other at the position of the core 2b. Then, the cores 2a, 2b, and 2c are arranged at measurement positions in contact with a shaft 6 which is applied with torque as shown by 7a and 7b, and then the three cores 2a, 2b, and 2c contact the measurement object surface of the shaft 6 having a cylindrical surface completely. Consequently, a stable and reliable measured value which has less variation is obtained.
摘要翻译：目的：为了获得准确可靠的测量结果，将三个线圈和探头注入到具有高磁导率的普通磁性材料基片中，并使探针接触，即使被测量的磁性结构体的表面是弯曲的。构成：卷绕有线圈3a，3b和3c的“坡莫合金”等的芯2a，2b和2c布置在由例如“Permalloy”制成的公共芯基座1上其两个等腰边在芯2b的位置处彼此交叉的矩形等边三角形的各个顶点。然后，如图7a和7b所示，芯2a，2b，2c配置在与施加有转矩的轴6接触的测量位置，然后三芯2a，2b和2c与测量对象表面接触轴6具有完全的圆柱形表面。因此，获得了具有较小变化的稳定可靠的测量值。

8. 发明专利

JPS63177008A APPARATUS FOR MEASURING UNEVENNESS OF TREAD SURFACE OF RAIL 失效
公开(公告)号：JPS63177008A
公开(公告)日：1988-07-21
申请号：JP803987
申请日：1987-01-19
申请人： RAILWAY TECHNICAL RES INST , HITACHI LTD , HITACHI ELECTR ENG
发明人： FUJIMORI SOJI , SATO YOSHIHIKO , MATSUMOTO KOICHI , YAMADA TETSUO , SUGIMURA AKIJI , ITO MASAYUKI
IPC分类号： G01B11/24 , E01B35/00 , G01B21/00 , G01B21/20
摘要： PURPOSE:To enhance measuring accuracy and to achieve handling convenience, by using a detector using laser beams as a reference line and measuring an interval on the basis of the change in electrostatic capacity. CONSTITUTION:A reference setting part 20 is fixed to a rail 20 and height reference laser beam 24 is set at the position definite in a height from the tread surface of the rail 1. An inspection car body 8 is constituted by mounting a gap sensor 10 detecting the height of the truck self-runnable on the rail to the tread surface of the rail, an image sensor 11 receiving the beam 24 to detect the height change quantity of the truck and a rotary encoder recording the moving distance of the truck. The output signals of the sensors 10, 11 are inputted to CPU to calculate the data of the interval between the sensor 10 and the tread surface of the rail and the positional variation data of the chasis to the beam 24 and the difference between both data is operated and outputted as a value showing the real unevenness of the tread surface of the rail. At the same time, the data signal of the angle of rotation of an axle obtained by the rotary encoder is taken in a CPU and converted to the moving distance of the chasis to be recorded.

9. 发明专利

JPS62222110A APPARATUS FOR MEASURING PASSAGE OF LONG WAVELENGTH 失效
公开(公告)号：JPS62222110A
公开(公告)日：1987-09-30
申请号：JP5252286
申请日：1986-03-12
申请人： RAILWAY TECHNICAL RES INST , HITACHI LTD , HITACHI ELECTR ENG
发明人： TAKESHITA KUNIO , KISHIMOTO SATORU , ITO MASAYUKI , YAMADA TETSUO , SUGIMURA SHIYUUJI , TAKENAKA YASUO
IPC分类号： G01B21/00 , B61K9/08
摘要： PURPOSE:To enable measurement even during high speed running of 300km or more, by defining the distance between the perpendicular facing surface to the side surface of a rail at one point among two points of a rail surface spaced apart by a base line length from each other and the other point as passage and continuously measuring this passage. CONSTITUTION:The rail replacements (a), (b) based on a vehicle body and the angle phi of revolution of the vehicle body to the reference perpendicular surface of a gyroscope are converted into voltages by a gyro-selsyn 2' while said voltages are converted into digital values by an A/D converter 19. Subsequently, (b-a)/l (wherein l is the segment connecting two points on the side surface of a rail), the angle phi formed by the segment (l) and the long axis of the vehicle body and the angle theta formed by the segment (l) and an absolute reference perpendicular surface are respectively calculated by an operator 20, an operator 21 and an operator 22, and the direction of the perpendicular facing surface at each measuring point on the side surface of the rail is calculated by a moving average operator 25. In this case, operations are performed in synchronous relation to the distance pulse generated at every definite running distance by a pulse generator 33. The angle thetai' formed by the segment (l) and the reference perpendicular surface is calculated by an operator 26 and long wavelength passage ai=ltanthetai' is calculated by an operator 27. The passage ai is outputted as it is and, at the same time, sent to a difference operator 36 and difference DELTAai is calculated and converted into an analogue signal by a D/A converter 31 to be outputted.

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