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    • 1. 发明专利
    • Standalone operation preventing system and control apparatus
    • STANDALONE操作防止系统和控制装置
    • JP2009219247A
    • 2009-09-24
    • JP2008060393
    • 2008-03-11
    • Tokyo Electric Power Co Inc:The東京電力株式会社
    • HIRAIWA NAOYAMITSUYAMA TERUKIFUWA YOSHIAKIKAJIYAMA SATOSHI
    • H02J13/00H02J3/38
    • Y02E40/72Y04S10/12
    • PROBLEM TO BE SOLVED: To quickly and reliably release a power application state in an optional section, for safety of a worker, even if the optional section of a distribution system is forcibly disconnected due to fire of a residence or the like, and its state is not determined as an accident. SOLUTION: A standalone operation preventing system 100 includes an open detecting part 202 which detects opening of power feeding switches 130B and 130F, and a command transmission part 204 which, upon detecting opening of all power feeding switches in a section, transmits a disconnection command to a distributed switch 130G in a power feeding region 170 of the section. The distributed switch includes a command accepting part 206 which opens connection between the power feeding region of the section and a distributed type power supply 150 based on the disconnection command. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了在可选部分中快速可靠地释放电力应用状态,为了工作人员的安全,即使分配系统的可选部分由于住宅等的火灾被强制断开, 而其状态并不是一个意外。 解决方案:独立的操作防止系统100包括检测供电开关130B和130F的打开的打开检测部分202以及指示传输部分204,在部分中检测到所有供电开关的断开之后,传送一个 断开命令到该部分的馈电区域170中的分布式开关130G。 分布式开关包括命令接收部分206,该命令接收部分206基于断开命令打开部分的馈电区域和分布式电源150之间的连接。 版权所有(C)2009,JPO&INPIT
    • 2. 发明专利
    • Unit, method and program for estimating state of distribution system
    • 用于评估分配系统状态的单元,方法和程序
    • JP2010068604A
    • 2010-03-25
    • JP2008231525
    • 2008-09-09
    • Hitachi LtdTokyo Electric Power Co Inc:The東京電力株式会社株式会社日立製作所
    • OGAWA KENJIWATANABE MASAHIROSHIMAMURA HIDEHIKOMITSUYAMA TERUKIHIRAIWA NAOYAKAJIYAMA SATOSHI
    • H02J3/00H02J13/00
    • PROBLEM TO BE SOLVED: To reduce the impact of instrumentation error in a measuring instrument, and to estimate the state matching the instrumentation data when the state of a distribution system is estimated utilizing the instrumentation data of electrical quantity of a system obtained by the measuring instrument. SOLUTION: A unit 1 for estimating the state of a distribution system includes a target value/measurement error range calculation section 13 which calculates the target value of electrical quantity of a system when the state of a system is estimated and calculates the instrumentation error range of power in the instrumentation of electrical quantity of a system, a model creation section 14 which forms a section model of a distribution system, a load calculation section 15 which calculates each load in the section model so that the calculation value of voltage at the receiving end matches the target value while adjusting the load within the instrumentation error range, a voltage calculation section 16 which calculates the voltage distribution of the distribution system based on the equipment information and each load calculated at the load calculation section, and a target value correction section 17 which corrects the target value so that the difference of a voltage calculation value calculated at the voltage calculation section and the voltage measurement value is minimized. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了减少测量仪器中仪器误差的影响,并且当使用由系统获得的系统的电量的仪器数据来估计配电系统的状态时,估计与仪表数据匹配的状态 测量仪器。 解决方案:用于估计分配系统的状态的单元1包括目标值/测量误差范围计算部13,其在估计系统的状态时计算系统的电量的目标值,并计算仪器 系统电量仪表中的功率误差范围,形成分配系统的分段模型的模型创建部分14,计算分段模型中的每个负载的负荷计算部分15,使得电压的计算值 接收端在调整仪表误差范围内的负载的同时匹配目标值;电压计算部分16,其基于设备信息和在负载计算部分计算的每个负载来计算分配系统的电压分布;以及目标值 校正部分17,其校正目标值,使得电压计算值的差值 在电压计算部分计算,电压测量值被最小化。 版权所有(C)2010,JPO&INPIT
    • 3. 发明专利
    • Voltage imbalance elimination supporting device, supporting method, and program thereof
    • 电压不平衡消除支持设备,支持方法及其程序
    • JP2009124913A
    • 2009-06-04
    • JP2007298800
    • 2007-11-19
    • Hitachi LtdTokyo Electric Power Co Inc:The東京電力株式会社株式会社日立製作所
    • OGAWA KENJIWATANABE MASAHIROSHIMAMURA HIDEHIKOMITSUYAMA TERUKISUGANO NORIHIROHIRAIWA NAOYAKAJIYAMA SATOSHIWADA TAKENAOKIMURA TAKAYUKI
    • H02J3/00
    • PROBLEM TO BE SOLVED: To provide an imbalance elimination supporting device which calculates an amount of load transfer which can reduce voltage imbalance in multiple time slots with different conditions of voltage imbalance. SOLUTION: The imbalance elimination supporting device is equipped with: a measurement information database 11 for storing measurement information relating to a power distribution system in multiple time slots; facility information database 12 for storing the system configuration and line impedance of the power distribution system; a load information database 13 for storing the rated capacity and the demand rate in multiple time slots of the power distribution system; a section 14 for calculating upper and lower limit values, which calculates the upper and lower limit values of a change in voltage between lines and the upper and lower limit values of an amount of load transfer, from an acceptable value for imbalance rate and the information output from each database; and a section 15 for calculating an amount of load transfer, which determines, by optimization calculation, an amount of load transfer for eliminating voltage imbalance in multiple time slots of the power distribution system using an object function for minimizing voltage imbalance based on the upper and lower limit values of a change in voltage between lines and the upper and lower limit values of an amount of load transfer which were calculated by the section for calculating upper and lower limit values. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种不平衡消除支持装置,其计算可以在不同的电压不平衡条件下减少多个时隙中的电压不平衡的负载传输量。 解决方案:不平衡消除支持装置配备有:用于存储与多个时隙中的配电系统相关的测量信息的测量信息数据库11; 设备信息数据库12,用于存储配电系统的系统配置和线路阻抗; 用于在配电系统的多个时隙中存储额定容量和需求速率的负载信息数据库13; 用于计算上限值和下限值的部分14,其从不平衡率的可接受值和信息中计算线路之间的电压变化的上限值和下限值以及负载转移量的上限值和下限值 每个数据库的输出; 以及用于计算负载传递量的部分15,其通过优化计算确定用于消除基于上部和下部的电压不平衡的目标函数的配电系统的多个时隙中的电压不平衡的负载传递量,以及 线路之间的电压变化的下限值和由用于计算上限值和下限值的部分计算的负载转移量的上限值和下限值。 版权所有(C)2009,JPO&INPIT
    • 4. 发明专利
    • Distributed power supply control device and centralized voltage control system
    • 分布式电源控制装置和集中式电压控制系统
    • JP2013074668A
    • 2013-04-22
    • JP2011210640
    • 2011-09-27
    • Mitsubishi Electric Corp三菱電機株式会社Tokyo Electric Power Co Inc:The東京電力株式会社
    • TAKANO TOMIHIROITAYA NOBUHIKOTSUJI YUKIMORI KENJIROMITSUYAMA TERUKI
    • H02J3/16H02J3/00H02J3/38
    • Y02E40/34
    • PROBLEM TO BE SOLVED: To provide a distributed power supply control device which can properly control the reactive power of a distributed power supply in order to effectively utilize the generated electric power of the distributed power supply and stabilize the voltage of an electric power system, and a centralized voltage control system.SOLUTION: A distributed power supply control device according to the present invention comprises: a generated electric power statistical processing unit 102 which calculates a maximum increment width and a maximum decrement width on the basis of the maximum and minimum generated electric power of a photovoltaic power generator 3 until before a prescribed time and its previously generated electric power, and statistically calculates an average value and a standard deviation of maximum change widths on the basis of the maximum increment width and maximum decrement width for a prescribed past period; a maximum generated electric power forecast unit 103 which forecasts the maximum generated electric power of the photovoltaic power generator 3 until after a prescribed time on the basis of the current generated electric power and the average value and standard deviation; and a reactive power controllable amount forecast unit 104 which forecasts a maximum controllable amount of reactive power until after a prescribed time on the basis of the maximum generated electric power and the capacity of an inverter 302.
    • 要解决的问题:提供一种能够适当地控制分布式电源的无功功率的分布式电源控制装置,以便有效地利用分布式电源的发电电力并稳定电力的电压 系统和集中式电压控制系统。 解决方案:根据本发明的分布式电源控制装置包括:生成电力统计处理单元102,其基于最大和最小发电电力计算最大增量宽度和最大减量宽度 光伏发电机3直到规定时间为止,其以前产生的电力,并且基于规定的过去时段的最大增加宽度和最大减量宽度统计计算最大变化宽度的平均值和标准偏差; 最大生成电力预测单元103,其基于当前产生的电力和平均值和标准偏差预测太阳能发电机3的最大发电电力,直到规定时间为止; 以及无功功率可控量预测单元104,其基于最大发电电力和逆变器302的容量预测无功功率的最大可控量直到规定时间为止。(C)2013年, JPO和INPIT
    • 5. 发明专利
    • Reactor setting method, distribution system, and shunt reactor
    • 反应器设定方法,分配系统和分流反应器
    • JP2010068599A
    • 2010-03-25
    • JP2008231344
    • 2008-09-09
    • Tokyo Electric Power Co Inc:The東京電力株式会社
    • SUGANO NORIHIROMITSUYAMA TERUKIMABUCHI HIROYUKIFUKATSU NAOAKIABE SATOYUKI
    • H02J3/16
    • Y02E40/34
    • PROBLEM TO BE SOLVED: To execute smooth shifting from a heavy load to a light load without causing a deviation of appropriate voltage by setting a suitable input voltage in each shunt reactor so as to input the shunt reactor at a suitable timing, even when a plurality of shunt reactors are linked to a distribution system. SOLUTION: The reactor setting method as a typical structure, includes: invalidating the input of the plurality of shunt reactors 140; measuring, at a plurality of times, a transmission voltage, a bank current and the voltages of the plurality of shunt reactors at each set point, when a load 130 linked to the distribution system 100 is lowered; deriving the shifting point where the approximate curve of the fluctuation locus of the transmission voltage and the bank current is deviated from a predetermined voltage range; and setting the voltages of the plurality of shunt reactors in the shifting point as the respective responding input voltages of the shunt reactor. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了通过在每个并联电抗器中设置合适的输入电压来实现从重负载到轻负载的平滑移位,而不会引起适当电压的偏差,从而在适当的时机输入并联电抗器,甚至 当多个分流反应器连接到分配系统时。 解决方案:作为典型结构的电抗器设置方法包括:使多个并联电抗器140的输入无效; 当连接到分配系统100的负载130降低时,多个时间测量在每个设定点处的多个并联电抗器的传输电压,组电流和电压; 导出传输电压和组电流的波动轨迹的近似曲线偏离预定电压范围的移位点; 以及将所述多个并联电抗器的电压设置在所述移动点中作为所述分流电抗器的相应的输入电压。 版权所有(C)2010,JPO&INPIT