专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2008245454A Power supply method and system for coping at disaster 有权
标题翻译：用于灾难复原的电源方法和系统
公开(公告)号：JP2008245454A
公开(公告)日：2008-10-09
申请号：JP2007084257
申请日：2007-03-28
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 , H02J9/06
摘要： PROBLEM TO BE SOLVED: To reduce costs for the installation and maintenance of equipment necessary for supplying power by making use of natural energy power sources and portable power supplies to stably supply power to the variable loads of emergency facilities, or the like, in disaster situations. SOLUTION: In normal situations, power is supplied, by associating a natural energy power source 12 installed in a disaster prevention base 2 with an electric power system 4. At a disaster, premise wiring 10 is isolated from the electric power system 4 and a common load 14 and connected to a load 15 for disasters and portable power regulation equipment 6, as shown in disaster prevention bases A to C. A supervision and control system 30 in the power regulation equipment 6 measures the outputs of a critical load 13, the load 15 for disasters and the natural energy power source 12 generates a control command to the storage battery 31 of the power regulation equipment 6 and an engine generator 32, of which the output can be controlled, in matching with the fluctuations in the outputs. This enables the loads and electric power generation to be balanced, thereby maintaining power qualities, such as voltage and frequency. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了降低使用自然能源电源和便携式电源来供电所需的设备的安装和维护成本，以稳定地向紧急设施等的可变负载供电，在灾难中。解决方案：在正常情况下，通过将安装在防灾基地2中的自然能源12与电力系统4相关联来提供电力。在灾难中，前提布线10与电力系统4隔离和共同负载14，并连接到用于灾害的负载15和便携式功率调节设备6，如防灾基座A至C所示。功率调节设备6中的监视和控制系统30测量临界负载13的输出，用于灾害的负载15和自然能源12产生对功率调节设备6的蓄电池31的控制命令和可以控制输出的发动机发电机32，以匹配输出的波动。这样可以平衡负载和发电，从而保持诸如电压和频率的电源质量。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2004096871A Linkage protection system for distributed power supply equipment 审中-公开
公开(公告)号：JP2004096871A
公开(公告)日：2004-03-25
申请号：JP2002253336
申请日：2002-08-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： UCHIYAMA TOMOYUKI , ONO YASUNORI , ARITA HIROSHI , HIGUCHI MIKISUKE , KAWAMURA NAOTERU
IPC分类号： H02J3/38
摘要： PROBLEM TO BE SOLVED: To provide a linkage protection system for distributed power supply equipment capable of performing smooth arithmetic processing. SOLUTION: A circuit breaker 12 for bus-bar communication is inserted into a bus bar 16 which connects between a power system 4 and distributed power supply equipment 5. A passing current I is detected by a current detector 13. A voltage on the power system side is detected by a voltage detector 14. The voltage on the distributed power supply equipment side is detected by a voltage detector 15. The detected current and each detected voltage are fetched into a control device 11. In the control device 11, a momentary voltage drop is detected by a combination of overcurrent or a current variation rate and a voltage drop, and a single run is detected according to a frequency variation rate of the voltage on the distributed power supply side. It is determined whether the direction of the power in the bus bar 16 is a direction from the distributed power supply equipment 5 side to the power system 4 side. The circuit breaker 12 is opened by outputting an interrupting instruction from the control device 11 to the circuit breaker 12 for the bus-bar connection, when the condition of a logic product between the positive determination result and the momentary voltage drop is satisfied or when the single run is detected. COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2003158823A LOAD APPARATUS MONITORING SYSTEM 审中-公开
公开(公告)号：JP2003158823A
公开(公告)日：2003-05-30
申请号：JP2001354324
申请日：2001-11-20
申请人： HITACHI LTD
发明人： KONDO SHINICHI , ONO YASUNORI , UCHIYAMA TOMOYUKI , KANAI MINORU , KAWAMURA NAOTERU
IPC分类号： G01R21/00 , H02J3/00 , H02J13/00
摘要： PROBLEM TO BE SOLVED: To relieve burdens of consumers by proposing measures for energy saving to consumers. SOLUTION: The power consumption of a load apparatus 21 of the consumer 2 is collected, and such a control method that the power consumption of the load apparatus 21 is minimized is determined based on the collected power consumption. An energy saving effect obtained by controlling the load apparatus 21 using the control method is estimated, and the estimated result is transmitted to the consumer 2 as a proposal of energy saving measures through a network 4.

4. 发明专利

JP2002058159A METHOD AND SYSTEM FOR SUPPLYING POWER 失效
公开(公告)号：JP2002058159A
公开(公告)日：2002-02-22
申请号：JP2000241142
申请日：2000-08-09
申请人： HITACHI LTD
发明人： ONO YASUNORI , UCHIYAMA TOMOYUKI , UMEGAKI KIKUO , ARITA HIROSHI , KANAI MINORU
IPC分类号： H02J13/00 , H02J3/00
摘要： PROBLEM TO BE SOLVED: To provide a technique of supplying power to meet the customers' demands, in a way reducing the expense for the customers. SOLUTION: Information, such as the amount of power generated by the power generator 10 installed at the premises of customers 1, the amount of power received through a power transmission and distribution system 90, the amount of power transmitted to the system, and data on the quality of power is collected at a control center 70 through monitoring devices 30 and a communication means 60. The demands by the customers are estimated at the control center 70, to determine the operating conditions at the premises of the customers, and operations are conducted via the communication means. In addition, maintenance is conducted as required, and charge rates are calculated according to the amount of power used, and the quality of power based on the data on power and data on the quality of power and outputted.

5. 发明专利

JP2000164434A WINDING WIRE OF STATIONARY INDUCTION APPARATUS 失效
公开(公告)号：JP2000164434A
公开(公告)日：2000-06-16
申请号：JP33879698
申请日：1998-11-30
申请人： HITACHI LTD
发明人： UCHIYAMA TOMOYUKI , SAITO TATSU , KIYONO KAZUYUKI , KIUCHI TADASHI , MASUHARA HIDEKI , KASHIWAKURA MASARU
IPC分类号： H01F27/28 , H01F27/30
摘要： PROBLEM TO BE SOLVED: To prevent spacers between coils from being moved or being fallen off from the coils even though an excessive vibration mechanical force is developed and gaps are created between the coils, by a method wherein the surfaces on at least one side of the surfaces of the spacers between the coils are fixed on the coils. SOLUTION: The surfaces on at least the lower sides of the surfaces, which come into contact with the coils 4, of spacers 5 between the coils are bonded to the coils 4 to fix the surface on at least the lower sides on the coils. The spacers 5 and insulation-coatings 42 of the coils 4 are bonded together using a bonding agent 6. That is, a plurality of insulators forming the spacers 5 and the insulation coatings 42 of the coils 4 on the lower sides of the insulators are bonded together by coating the bonding agent 6 on the insulators and the coating 42. By performing in such a way, the spacers 5 are fixed on the coils 4, which always come into contact with at least the lower sides of the spacers themselves. Therefore, even if gaps are created between the coils 4 by an excessive variation mechanical force, there is not risk that the spacers 5 are moved or fallen off from the coils.

6. 发明专利

JPH08126198A PHASE ADJUSTER 失效
公开(公告)号：JPH08126198A
公开(公告)日：1996-05-17
申请号：JP28904594
申请日：1994-10-28
申请人： HITACHI LTD
发明人： UCHIYAMA TOMOYUKI , SAITO TATSU , INAGAKI KEIZO , ARITA HIROSHI
IPC分类号： H02H9/02 , G05F1/20 , G05F1/24 , H02J3/18
摘要： PURPOSE: To suppress fault current of a power system without increasing an adjustment capacity for phase adjustment, by inserting a current-limiting element into the exciting winding of the series transformer of a phase adjuster, at the time of a fault of a power system occurring. CONSTITUTION: A current-limiting element 5 is composed of an impedance element 51 to be connected in series to the exciting winding 32 of a series transformer 3, and a high-speed switch 52 for inserting or short-circuiting this element 51. If a fault occurs in a system and fault current flows, a current transformer 7 detects this, and a controller 6 operates. The high-speed switch 52 is opened, and both terminals of the impedance element 51 are opened. Consequently, the impedance element 51 is connected in series to the exciting winding 32. The impedance converted on the side of the exciting winding 32 becomes larger compared with that at normal time, and fault current flowing on the side of the exciting winding 32 is suppressed.

7. 发明专利

JP2006204081A Supply and demand adjusting method, system and service by distributed power source 审中-公开
标题翻译：供电和需求调整方法，分布式电源的系统和服务
公开(公告)号：JP2006204081A
公开(公告)日：2006-08-03
申请号：JP2005277033
申请日：2005-09-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ONO YASUNORI , UCHIYAMA TOMOYUKI , KONDO SHINICHI , TATEMI MASARU , FUJITA YASUNOBU
IPC分类号： H02J3/00
CPC分类号： Y02P80/22
摘要： PROBLEM TO BE SOLVED: To provide a method and a system by which natural fluctuating electric power supply like wind power generation is interconnected to a commercial system, and economical operation is attained, without depending on the ability to adjust the supply and demand of an electric power company. SOLUTION: The system includes a means 62 to collect information on demand of a customer 6, and a means 42 to collect information on generated energy (output) of an electric power enterprise having the natural fluctuating electric power supply 4, and the information is collected at a supply and demand adjusting center 3 via a communications network 2. A monitor controller 31 computes and sets an output of a power system 5 for adjustment from such information so as to keep the balance of demand and supply, including the naturally fluctuating electric power supply 4. Its control value is transmitted to the power system 5 for adjustment via the communication network 2, and the generated energy is controlled by a control unit 53. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供如风力发电等自然波动电力供应与商业系统互连的方法和系统，并且不依赖于调整供需的能力而实现经济运行的电力公司。解决方案：该系统包括用于收集客户6的信息的装置62以及收集关于具有自然波动电力供应装置4的电力企业的生成能量（输出）的信息的装置42，信息通过通信网络2在供需调整中心3收集。监视器控制器31计算并设置用于从这些信息进行调整的电力系统5的输出，以便保持需求和供应的平衡，包括自然波动电源4.其控制值通过通信网络2发送到电力系统5进行调整，所产生的能量由控制单元53控制。（C）版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2006087177A State estimating device, method, and program for distribution system 有权
标题翻译：状态估计装置，分配系统的方法和程序
公开(公告)号：JP2006087177A
公开(公告)日：2006-03-30
申请号：JP2004267685
申请日：2004-09-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WATANABE MASAHIRO , KIMURA YASUTAKA , OGAWA KENJI , KOMURA AKIYOSHI , UCHIYAMA TOMOYUKI
IPC分类号： H02J3/00 , H02J13/00
摘要： PROBLEM TO BE SOLVED: To provide a state estimating device, a method, and a program for accurately estimating the power flow state of a distribution system from limited voltage/current observed values of the distribution system. SOLUTION: This distriubtion system state estimating device which estimates the state of the power flow of a distribution system is equipped with a distribution system state estimating part which computes the estimate of the state of the power distribution system based on a measurement database which stores measurements of the power distribution system, a facility database which stores upper and lower limit values of the load connected to the power distribution system, upper and lower limit values of the amount of power generation, and daily patterns or upper and lower limit values of the amount of line impedance modification, and the measurements of the power distirbution system read out of the measurement database and upper and lower limit values of a load connected to the power distribution system or the amount of power generation and the daily patterns or the upper and lower limit values of the amount of line impedance modification read out of the facility database, and a display part which indicates the estimate of the state of the power distribution system that the power distribution system state estimating part has computed. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种状态估计装置，方法和程序，用于从分配系统的有限电压/电流观测值精确地估计分配系统的功率流动状态。解决方案：该分散系统状态估计装置，其估计分配系统的功率流的状态，配备有分配系统状态估计部，其基于测量数据库计算配电系统的状态的估计，存储配电系统的测量，存储连接到配电系统的负载的上限值和下限值的设施数据库，发电量的上限值和下限值，以及每日模式或上下限值线路阻抗修改量，以及从测量数据库中读出的功率分布系统的测量值以及连接到配电系统的负载的上限和下限值，或发电量和日常模式，从设施数据库读出的线路阻抗修改量的下限值和显示器表示配电系统状态估计部计算出的配电系统的状态的估计的部分。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2004056996A Local electric power intelligence supervisory system and its operation method 审中-公开
公开(公告)号：JP2004056996A
公开(公告)日：2004-02-19
申请号：JP2003154859
申请日：2003-05-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ONO YASUNORI , UCHIYAMA TOMOYUKI , KONDO SHINICHI , FUJITA YASUNOBU , KAWAMURA NAOTERU
IPC分类号： H02J13/00 , H02J3/00 , H02J3/46
CPC分类号： Y02E40/72 , Y04S10/12
摘要： PROBLEM TO BE SOLVED: To suppress generation of congestion of a tidal current in a local transmission/distribution system of electric power. SOLUTION: While system information relating to a tidal current and voltage of a local power transmission/ distribution system 10 is collected through a communication line 20, customer information relating to power consumption of each customer 3a and 3b and a quantity of power generation of the customer 3b is collected, based on the collected information, a local power information center 5 generates a first control set value for adjusting an output of a local power transmission/distribution system voltage regulator 17 to additionally generate a second control set value for adjusting an output of a generating set 40, a control signal relating to each of the generated control set value is output through the communication line 20 to the voltage regulator 17 and a power source output regulator, to suppress generation of congestion of a tidal current in the local power transmission/distribution system 10. COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2003199249A METHOD OF MAKING USE OF POWER SUPPLY NETWORK AND SYSTEM THEREFOR 审中-公开
公开(公告)号：JP2003199249A
公开(公告)日：2003-07-11
申请号：JP2001392537
申请日：2001-12-25
申请人： HITACHI LTD
发明人： UCHIYAMA TOMOYUKI , ONO YASUNORI , FUJITA YASUNOBU , KAWAMURA NAOTERU
IPC分类号： H02J3/00 , H02J3/38 , H02J3/46
摘要： PROBLEM TO BE SOLVED: To control powers supplied to loads of respective users connected to a power supply network according to power rates determined by contracts. SOLUTION: When power is supplied to a regional power supply network 40 comprising a distribution line 4, suppliable power is calculated according to powers supplied by a power generating apparatus 25 and a power storage apparatus 26 and power purchased from a power system 1, and, further, total consumed electric energy in the power supply network 40 is calculated according to electric energies measured by watthour meters 8 by a management server 23. If the total consumed electric energy exceeds the suppliable electric energy and the power supply to the regional power supply network is insufficient, parallel-off commands are given to circuit breakers 10 of the users A and B, who have higher ranks of the parallel-off among the users A-D according to power rates determined in relation to contracts, to parallel off non-important loads 5 belonging to the users A and B from the regional power supply network 40 and the powers are supplied with higher priority to the important loads 6 of the users C and D who have lower ranks of the parallel-off. COPYRIGHT: (C)2003,JPO

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