专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明专利

JPS60241717A RESTARTING SYSTEM OF DC TRANSMISSION SYSTEM 失效
公开(公告)号：JPS60241717A
公开(公告)日：1985-11-30
申请号：JP9288084
申请日：1984-05-11
申请人： TOKYO ELECTRIC POWER CO , HITACHI LTD
发明人： SAKURAI BUICHI , GOTOU KIYOSHI , TAMAI MAKOTO , NAKAMURA TOMOHARU
IPC分类号： H02J1/00 , H02M7/04 , H02M7/12 , H02M7/48

52. 发明专利

JPS57173330A DC TRANSMISSION CONTROLLER 失效
公开(公告)号：JPS57173330A
公开(公告)日：1982-10-25
申请号：JP5624781
申请日：1981-04-16
申请人： HITACHI LTD
发明人： NAKAMURA TOMOHARU , KAWAI TADAO
IPC分类号： H02J1/00 , H02J3/36

53. 发明专利

JP2013131658A Solar battery and photovoltaic power generation system 有权
标题翻译：太阳能电池和光伏发电系统
公开(公告)号：JP2013131658A
公开(公告)日：2013-07-04
申请号：JP2011280708
申请日：2011-12-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KONO TORU , NAKAMURA AKIHIRO , NAKAMURA TOMOHARU
IPC分类号： H01L31/042
CPC分类号： Y02E10/50
摘要： PROBLEM TO BE SOLVED: To provide an arithmetic method for reproducing highly accurate solar cell characteristics by using data only on a short circuit current, an open circuit voltage, and a maximum power operation point of a silicon crystal solar cell having crystal defects mixed in or a CIGS (Copper Indium Gallium Selenide) solar cell under standard temperature and solar radiation conditions.SOLUTION: First, a junction constant and the impurity concentration of a carrier indicating the performance of a solar cell are calculated on the basis of a prescribed reverse saturation current value and a parameter value constituting an expression for the prescribed reverse saturation current by using data only on the short circuit current and open circuit voltage of a solar cell under standard temperature and solar radiation conditions. Next, the temperature coefficient of the open circuit voltage and the reverse saturation current is found using the calculated parameter. Then, a short circuit current, an open circuit voltage, and a maximum power operation point at a prescribed temperature are calculated from the values thus obtained.
摘要翻译：要解决的问题：提供一种用于通过仅将晶体缺陷混合在其中的硅晶体太阳能电池的短路电流，开路电压和最大功率操作点的数据再现高精度太阳能电池特性的算术方法，或者在标准温度和太阳辐射条件下的CIGS（铜铟镓硒）太阳能电池。解决方案：首先，根据规定的反向饱和电流计算结点常数和指示太阳能电池性能的载流子的杂质浓度通过仅使用在标准温度和太阳辐射条件下的太阳能电池的短路电流和开路电压的数据来构成规定的反向饱和电流的表达式的参数值和参数值。接下来，使用所计算的参数来求出开路电压的温度系数和反向饱和电流。然后，根据这样获得的值，计算出规定温度下的短路电流，开路电压和最大功率工作点。

54. 发明专利

JP2009177882A Distributed power supply system and method of controlling the same 有权
标题翻译：分布式电源系统及其控制方法
公开(公告)号：JP2009177882A
公开(公告)日：2009-08-06
申请号：JP2008011591
申请日：2008-01-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ONO YASUNORI , UCHIYAMA MICHIYUKI , KONDO SHINICHI , MIYATA HIROAKI , NAKAMURA TOMOHARU
IPC分类号： H02J3/38 , H02J3/16 , H02J3/50 , H02M7/48
CPC分类号： Y02E40/34
摘要： PROBLEM TO BE SOLVED: To prevent voltage fluctuation arising from the output fluctuation of a distributed power supply system's own, when the distributed power supply system is connected to a power supply system. SOLUTION: In the distributed power supply system operated by being connected to a power system 1 through a linkage line 2, a power voltage variation computing unit 220 computes variations (ΔP, ΔV) in effective electric power P and linkage point voltage V transmitted to the linkage line from measured values of a current sensor 11 and a voltage sensor 12. A system parameter for determining the ratio of the ineffective electric power to the effective electric power is obtained from the variations ΔP, ΔV. Namely, a system parameter computing unit 23 computes a shift quantity Δα between a present system parameter α and a system parameter αt reducing the voltage variation to minimum, and an electric power command value computing unit 240 generates an effective/ineffective electric power command value based on the system parameter having the shift quantity corrected. An electric power control unit 250 generates a control signal of an electric power converter corresponding to the effective/ineffective electric power command value to drive the electric power converter 6. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了防止分布式电源系统自身的输出波动引起的电压波动，当分布式供电系统连接到电源系统时。解决方案：在通过连接线2连接到电力系统1的分布式供电系统中，电力电压变化计算单元220计算有效电力P和联动点电压V（V）的变化（ΔP，ΔV）从电流传感器11和电压传感器12的测量值传输到连接线。从变化ΔP，ΔV获得用于确定无效电力与有效功率的比率的系统参数。也就是说，系统参数计算单元23计算当前系统参数α和将电压变化降至最小的系统参数αt之间的偏移量Δα，并且电力指令值计算单元240产生基于有效/无效的电力指令值关于校正了移位量的系统参数。电力控制单元250根据有效/无效的电力指令值生成与功率转换器6相对应的电力转换器的控制信号。驱动电力转换器6.（C）2009，JPO＆INPIT

55. 发明专利

JP2008289222A Power supply equipment, and control method thereof 审中-公开
标题翻译：电源设备及其控制方法
公开(公告)号：JP2008289222A
公开(公告)日：2008-11-27
申请号：JP2007129253
申请日：2007-05-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ONO YASUNORI , CHINO KOICHI , UCHIYAMA TOMOYUKI , TAKIZAWA TERUHIRO , NAKAMURA TOMOHARU
IPC分类号： H02J3/46 , H02J3/38 , H02P9/00 , H02P9/04
摘要： PROBLEM TO BE SOLVED: To provide power supply equipment which can stably supply power without the need for installing equipment for suppressing an output variation even in if wind power generation is employed, and to provide a control method thereof. SOLUTION: In order to generate power for satisfying the demand power of a power customer 30 by using a combined cycle generator set 50, there are implemented procedures for: setting a target power generation amount of a gas turbine set 51 and a target power generation amount of a steam turbine set 52; subtracting the target power generation amount of the steam turbine set 52 by an amount equivalent to a power generation amount of a wind turbine generator 10 when the wind turbine generator generates power; feeding a necessary amount of steam for generating the power of the subtracted target power generation amount of the steam turbine set 52 by the steam turbine set 52 to the steam turbine set 52 from an exhaust heat recovery boiler 63; and feeding remaining steam generated at the exhaust heat recovery boiler 63 to a desalination device 60 which desalinates sea water by utilizing steam heat. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：即使在采用风力发电的情况下，也可以提供即使在风力发电的情况下也能够稳定地供电而不需要安装用于抑制输出变化的设备的供电设备，并提供其控制方法。解决方案：为了通过使用组合循环发电机组50来发电以满足电力用户30的需求功率，实现了以下过程：设置燃气轮机组51和目标的目标发电量汽轮机组52的发电量; 当风力涡轮发电机产生电力时，将蒸汽轮机组52的目标发电量减去与风力发电机10的发电量相当的量; 供给必要量的蒸汽，用于将蒸气涡轮机组52的蒸汽涡轮机组52的减去的目标发电量的功率从废热回收锅炉63产生到蒸汽涡轮机组52; 以及将在排气热回收锅炉63产生的剩余蒸汽供给到通过利用蒸汽热对海水进行脱盐的脱盐装置60。版权所有（C）2009，JPO＆INPIT

56. 发明专利

JP2006323863A INFORMATION PROCESSOR AND REAL TIME DISTRIBUTED PROCESSING SYSTEM 审中-公开
公开(公告)号：JP2006323863A
公开(公告)日：2006-11-30
申请号：JP2006195059
申请日：2006-07-18
申请人： HITACHI LTD
发明人： SATO YASUO , TANIKOSHI KOICHIRO , YOKOYAMA TAKANORI , NAKAMURA TOMOHARU , KIDO MITSUYASU
IPC分类号： G06F11/20 , G06F9/50
摘要： PROBLEM TO BE SOLVED: To provide an information processor for allocating a plurality of tasks for providing a function of a protective relay to arithmetic units while restraining possibility of stopping the function of a protective relay. SOLUTION: This information processor making a plurality of arithmetic units connected through a network process a plurality of tasks for providing the function of a protective relay includes: a means for storing combinations of the tasks processible by using a specific one of the arithmetic units out of the plurality of tasks; and a means for selecting any of the combinations of the tasks processible by using the specific arithmetic unit to make the specific arithmetic unit execute the tasks of the selected combination. COPYRIGHT: (C)2007,JPO&INPIT

57. 发明专利

JP2005341668A Voltage regulator and voltage regulating method 有权
标题翻译：电压调节器和电压调节方法
公开(公告)号：JP2005341668A
公开(公告)日：2005-12-08
申请号：JP2004154479
申请日：2004-05-25
申请人： Hitachi Ltd , Tokyo Electric Power Co Inc:The , 東京電力株式会社 , 株式会社日立製作所
发明人： OGAWA KENJI , WATANABE MASAHIRO , SHIMAMURA HIDEHIKO , KAWASE MINORU , NAKAMURA TOMOHARU , YOSHINAGA ATSUSHI , TAKI YOSHIHARU
IPC分类号： H02J3/12 , H02J3/18 , H02M7/493 , H02M7/48
CPC分类号： Y02E40/30
摘要： PROBLEM TO BE SOLVED: To regulate the voltage of a low-voltage distribution system by making a pole transformer have a voltage regulating function. SOLUTION: In a power system which is composed of a pole transformer 110 for connecting a high-voltage distribution line 10 with a low-voltage distribution line 20 and consumer load 22 or a dispersed power source 23 connected to the low-voltage distribution line, this voltage regulator is equipped with: the above pole transformer 110; series transformers 211 and 212 whose primary sides are connected to its secondary side; an regulation voltage control circuit 240 which receives the input of the voltage measured value of a low-voltage distribution line 20; and a regulation voltage generating circuit 230 which generates voltage on the secondary sides of the series transformers 211 and 212, based on the output of the regulation voltage control circuit 240. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过使极点变压器具有电压调节功能来调节低压配电系统的电压。解决方案：在由用于将高压配电线路10与低压配电线路20连接的极点变压器110和与低压配电线路20连接的消费者负载22或分散电源23构成的电力系统中配电线路，该电压调节器配有：上述变压器110; 串联变压器211和212，其一次侧连接到其次级侧; 接收低电压配线20的电压测量值的输入的调节电压控制电路240; 以及调节电压发生电路230，其基于调节电压控制电路240的输出，在串联变压器211和212的次级侧产生电压。（C）2006年，JPO和NCIPI

58. 发明专利

JPH07284231A POWER SYSTEM STABILIZATION CONTROLLER AND POWER SYSTEM STABILIZATION CONTROL METHOD 失效
公开(公告)号：JPH07284231A
公开(公告)日：1995-10-27
申请号：JP2907895
申请日：1995-02-17
申请人： HITACHI LTD
发明人： AMANO MASAHIKO , WATANABE MASAHIRO , KONISHI HIROO , TANIFUJI SHINYA , NAKAMURA TOMOHARU
IPC分类号： H02J3/24
摘要： PURPOSE:To set an adequate control method corresponding to a system condition and a fault condition while establishing cooperation of a plurality of power system stabilizing apparatus. CONSTITUTION:A system inf ormation input means 11 catches a system information and a system condition deciding means 13 decides the system condition. A device running condition input means 12 catches running conditions of stabilizing devices. A control method deciding means determines a control method, considering the system conditions and device running conditions. At the time of deciding the control method, a fluctuation mode analyzing means 15 analyzes fluctuation mode of each point on the basis of the time response waveform, a control share setting means 16 decides control share of each device based on the fluctuation mode and a control parameter setting means 17 sets control parameter of each device on the basis of the control share. When a plurality of control methods are provided, these are evaluated by an intrinsice value or time application simulation to select the optimum method. The control method decided is outputted to each stabilizing device by a control method output means 18.

59. 发明专利

JPH06195212A METHOD AND DEVICE FOR GENERATING SOFTWARE AND INSPECTION DATA 失效
公开(公告)号：JPH06195212A
公开(公告)日：1994-07-15
申请号：JP34389492
申请日：1992-12-24
申请人： HITACHI LTD
发明人： MORIMOTO YUICHI , NAKAMURA TOMOHARU
IPC分类号： G06F9/06
摘要： PURPOSE:To provide a software automatic generation device where an inspection comprehensive rate can be improved at the time of inspecting the product of digital controller software and the generation of an inspection input/output system can be automatized. CONSTITUTION:This device is provided with a software parts data base 5, a software generation means 2, a parts inspection specification data base 6, an inspection specification automatic generation means 3 provided with an inspection specification editing means 32 judging whether the judgement output of parts inspection, which is on an upstream-side, can be observed at output on a downstream-side, and whether the inspection input of parts, which is on the downstream-side, can be impressed from the upstream-side or not, and a software editing means 23 inserting software parts where observation output is provided when the inspection output of the parts, which is on the upstream- side, cannot be observed by output on the downstream-side and inserting the software parts receiving inspection input when the inspection input of the parts, which is on the downstream-side, cannot be impressed so as to correct software. Inspection input/output data is generated for corrected software.

60. 发明专利

JPH0578251B2 失效
公开(公告)号：JPH0578251B2
公开(公告)日：1993-10-28
申请号：JP13876087
申请日：1987-06-02
申请人： HITACHI LTD , DENGEN KAIHATSU KK
发明人： TSUTSUMI HIROBUMI , NAKAMURA TOMOHARU , IROKAWA HIROYUKI
IPC分类号： H02J3/18 , G05F1/70

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式