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    • 1. 发明专利
    • Voltage controller
    • 电压控制器
    • JP2011250629A
    • 2011-12-08
    • JP2010122883
    • 2010-05-28
    • Mitsubishi Electric CorpTokyo Electric Power Co Inc:The三菱電機株式会社東京電力株式会社
    • TAKANO TOMIHIROTSUJI YUKIMORI KENJIROKOBAYASHI NAOKIFUWA YOSHIAKI
    • H02J3/12
    • PROBLEM TO BE SOLVED: To provide a technique with which it becomes possible to estimate an adjustment target voltage with precision even when a user does not set a set point of a voltage controller.SOLUTION: A voltage controller 1 includes a transformer 16, a voltage/power measuring instrument 10, a measurement database 12 for storing measurement data, a regression analysis unit 13, and a control execution unit 15. The regression analysis unit 13 performs multiple regression analysis on the measurement data, thereby calculating set points k1(i) and k2(i) that are correlation coefficients between a voltage drop from an own end voltage Vs to a compensation point voltage V(i) and own end passage active power P as well as own end passage reactive power Q. When the compensation point voltage V(i) is not obtained, the control execution unit 15 obtains a compensation point voltage estimation value Vn(i) using the set points k1(i) and k2(i) and controls a voltage of the transformer 16 so that the estimation value falls within an operating range.
    • 要解决的问题:即使当用户没有设置电压控制器的设定点时,提供一种可以精确地估计调节目标电压的技术。 解决方案:电压控制器1包括变压器16,电压/功率测量仪器10,用于存储测量数据的测量数据库12,回归分析单元13和控制执行单元15.回归分析单元13执行 对测量数据进行多元回归分析,从而计算作为从自身端部电压Vs到补偿点电压V(i)的电压降与自身端部通过有功功率之间的相关系数的设定点k1(i)和k2(i) P以及自身端部通过无功功率Q.当没有获得补偿点电压V(i)时,控制执行单元15使用设定点k1(i)和k2获得补偿点电压估计值Vn(i) (i)并且控制变压器16的电压,使得估计值落在工作范围内。 版权所有(C)2012,JPO&INPIT
    • 2. 发明专利
    • Independent operation preventing device
    • 独立操作防止设备
    • JP2007037354A
    • 2007-02-08
    • JP2005220080
    • 2005-07-29
    • Mitsubishi Electric CorpTokyo Electric Power Co Inc:The三菱電機株式会社東京電力株式会社
    • OSHIDA HIDEJIKOWADA YASUYUKIWATANABE MINEOTAKANO TOMIHIROMOTOHASHI JUNTAGUCHI SEIHIRAI TAKAOOISHI KOHEI
    • H02J3/38
    • Y02E40/72Y04S10/123
    • PROBLEM TO BE SOLVED: To provide an independent operation preventing device which can surely prevent independent operation relative to all the distributed power sources linked with a system without being influenced by the balance state between the power generation amount in the system upon the occurrence of independent operation and a load amount, the magnitude of various electric amount variation nor the number of linked distributed power sources, and can satisfy a predetermined control finish target time. SOLUTION: After an initializing condition in a substation 1 is established, a central unit 14 set in the substation 1 sends a transfer intercepting signal relative to the terminal device 5 of the distributed power source 3 having the connection to a high voltage distribution line 2 recognized in advance to execute transfer interception, and then the central unit sends a forced short-circuit signal relative to an interceptor 15 for forced short-circuit set in the substation 1 to temporarily destroy the line-to-line voltage of the high voltage distribution line 2, with all the distributed power sources 7 linked with a low voltage distribution line being stopped. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种独立的防止操作的装置,其能够相对于与系统连接的所有分布式动力源可靠地防止独立操作,而不受系统发生量在发生时的发电量之间的平衡状态的影响 独立运行和负载量,各种电量变化的幅度以及连接的分布式电源的数量,并且可以满足预定的控制完成目标时间。 解决方案:在变电站1的初始化状态建立之后,设在变电站1中的中央单元14相对于具有与高电压分配连接的分布式电源3的终端设备5发送传输拦截信号 线路2预先识别出执行传输拦截,然后中央单元相对于拦截器15发送强制短路信号,用于在变电站1中强制短路设置,以暂时消除高电平的线间电压 电压分配线2与所有与低压配电线路连接的分布式电源7停止。 版权所有(C)2007,JPO&INPIT
    • 3. 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
    • 4. 发明专利
    • Estimation method for amount of solar power generation and distribution system control system
    • 太阳能发电和配电系统控制系统的估算方法
    • JP2012044740A
    • 2012-03-01
    • JP2010181650
    • 2010-08-16
    • Tokyo Electric Power Co Inc:The東京電力株式会社
    • MIYATA MASATOKATAOKA YASUHIROTAKANO TOMIHIRO
    • H02J3/00G06Q50/06H01L31/042H02J3/38
    • Y02E10/563Y02E40/72Y04S10/123
    • PROBLEM TO BE SOLVED: To provide a technology capable of estimating a total power generation amount of a plurality of solar power generators interlocked to an arbitrary distribution section with high accuracy and less labor.SOLUTION: An estimation method for an amount of solar power generation typically comprises: an information acquisition step 134 for acquiring every prescribed time a sectional power flow measured by sensor built-in automated switches 126a to 126h and an amount of solar radiation measured by pyranometers 132a, 132b in a target distribution section 122 so as to store them in a data table 104a; a power generation coefficient calculation step 138 for reading out a sectional power flow and an amount of solar radiation that belong to a time zone when an actual load is almost constant from the data table 104a so as to calculate a generation coefficient by regression analysis based on an expression,"sectional power flow=generation coefficient×amount of solar radiation+auxiliary coefficient"; and a total generation amount estimation step 140 for estimating a total generation amount of a plurality of solar power generators 130a, 130b interlocked to the distribution section 122 by multiplying a solar radiation amount by a generation coefficient of the time when the estimation is required.
    • 要解决的问题:提供一种能够以高精度和少劳动来估计与任意分配部互锁的多个太阳能发电装置的总发电量的技术。 太阳能发电量的估计方法通常包括:信息获取步骤134,用于从每个规定时间获取由传感器内置的自动开关126a至126h测量的分段功率流和测量的太阳辐射量 通过目标分配部分122中的太阳辐射计132a,132b将它们存储在数据表104a中; 发电系数计算步骤138,用于从数据表104a读出属于实际负荷几乎恒定的时间段的分段功率流和太阳辐射量,以便通过基于 表达式“截面功率流量=发电系数×太阳辐射量+辅助系数”; 以及总产生量估计步骤140,用于通过将太阳辐射量乘以需要估计的时间的产生系数来估计与分配部分122互锁的多个太阳能发电机130a,130b的总产生量。 版权所有(C)2012,JPO&INPIT
    • 5. 发明专利
    • Load estimation method of power distribution section and system for controlling power distribution system
    • 功率分配部分的负荷估计方法和控制功率分配系统的系统
    • JP2012044739A
    • 2012-03-01
    • JP2010181648
    • 2010-08-16
    • Tokyo Electric Power Co Inc:The東京電力株式会社
    • MIYATA MASATOKATAOKA YASUHIROTAKANO TOMIHIRO
    • H02J3/00G06Q50/06
    • Y04S10/54
    • PROBLEM TO BE SOLVED: To provide a technology capable of estimating a load (an actual load) with high accuracy in a power distribution section based on the temperature of a time when an estimation is required to be made, even when the number of load data samples for a target power distribution section is insufficient.SOLUTION: A load estimation method of a power distribution section typically comprises: an information acquisition step 144 for accumulating load data of the power distribution section; a first information extraction step 148 for extracting the load data of a target time to create a first data group; a second information extraction step 152 for extracting the load data near to the target time to create a second information group; a scale conversion step 154 for converting the scale of a load value of the second data group; a data interpolation step 156 for interpolating the first data group with the scale-converted load data of the second data group; a relation expression deriving step 158 for a derivation of a relation expression between temperature and a load; and a load estimation step 160 for estimating the load (an actual load) based on the relation expression.
    • 要解决的问题:为了提供一种能够基于需要进行估计的时间的温度来在配电部中以高精度估计负载(实际负载)的技术,即使当数量 目标配电部的负载数据样本不足。 解决方案:功率分配部分的负载估计方法通常包括:信息获取步骤144,用于累积功率分配部分的负载数据; 第一信息提取步骤148,用于提取目标时间的负载数据以创建第一数据组; 第二信息提取步骤152,用于提取接近目标时间的负载数据以创建第二信息组; 缩放转换步骤154,用于转换第二数据组的负载值的比例; 数据内插步骤156,用于利用第二数据组的缩放转换的负载数据内插第一数据组; 用于推导温度和负载之间的关系表达式的关系表达式导出步骤158; 以及用于基于关系表达式估计负载(实际负载)的负载估计步骤160。 版权所有(C)2012,JPO&INPIT
    • 6. 发明专利
    • Bright and clear time determination device and photovoltaic power generation amount prediction system
    • 亮度和清除时间确定装置和光伏发电量预测系统
    • JP2012043857A
    • 2012-03-01
    • JP2010181649
    • 2010-08-16
    • Tokyo Electric Power Co Inc:The東京電力株式会社
    • MIYATA MASATOKATAOKA YASUHIROTAKANO TOMIHIRO
    • H01L31/042
    • Y02E10/50
    • PROBLEM TO BE SOLVED: To provide a technique capable of automatically determining bright and clear time zones in the past on the basis of accumulated measured data.SOLUTION: The representative constitution of a bright and clear time determination device 112 of this invention comprises: a transition data acquisition unit 118 for acquiring transition data on the actual power generation amount and the actual solar radiation amount of a photovoltaic power generator with respect to time; a low-pass filter 120 which outputs work data obtained by smoothing fine variation in the transition data; a delay time correction part 122 which corrects a delay time of the work data by the low-pass filter 120; and a bright and clear time determination unit 126 which determines, as a bright and clear time zone, a time zone in which deviation of the transition data on the actual power generation amount or the actual solar radiation amount from the corrected work data is within a predetermined range.
    • 要解决的问题:提供一种能够基于累积的测量数据自动确定过去的明亮和清晰的时区的技术。 解决方案:本发明的明亮清晰的时间确定装置112的代表性结构包括:转换数据获取单元118,用于获取关于光伏发电机的实际发电量和实际太阳辐射量的转换数据, 尊重时间; 低通滤波器120,其输出通过平滑转换数据中的微小变化而获得的工作数据; 延迟时间校正部122,其通过低通滤波器120校正工作数据的延迟时间; 以及明亮清晰的时间确定单元126,其确定明亮和清晰的时间区域,其中过渡数据与实际发电量或实际太阳辐射量的偏差相对于校正后的工作数据在 预定范围。 版权所有(C)2012,JPO&INPIT
    • 7. 发明专利
    • Load prediction device and load prediction method
    • 负载预测装置和负载预测方法
    • JP2014054041A
    • 2014-03-20
    • JP2012195781
    • 2012-09-06
    • Mitsubishi Electric Corp三菱電機株式会社Tohoku Electric Power Co Inc東北電力株式会社
    • OSAWA NANAHOTAKANO TOMIHIROMATSUDA KATSUHIRO
    • H02J3/00G06Q50/06
    • PROBLEM TO BE SOLVED: To provide a technology capable of appropriately predicting a power load in a power distribution system.SOLUTION: A load prediction device comprises: a start probability model, an apparatus power characteristic model, an apparatus type-based number of start apparatuses prediction unit 3, an apparatus type-based power consumption prediction unit 4, and a load totaling unit 5. The apparatus type-based number of start apparatuses prediction unit 3 calculates an expectation value g(t) of the number of start apparatuses for each apparatus type and for each time of apparatuses in the same power distribution section, on the basis of the start probability model and the number of apparatuses in the same power distribution section. The apparatus type-based power consumption prediction unit 4 calculates an expectation value h(t) of power consumption for each apparatus type and for each time of apparatuses in the same power distribution section, on the basis of the expectation value g(t) of the number of start apparatuses and the apparatus power characteristic model.
    • 要解决的问题:提供一种能够适当地预测配电系统中的电力负载的技术。解决方案:负载预测装置包括:启动概率模型,装置功率特性模型,基于装置类型的启动装置 预测单元3,基于设备类型的功率消耗预测单元4和负载合计单元5.开始设备预测单元3的设备类型数量计算每个开始设备数量的期望值g(t) 根据起动概率模型和同一功率分配部中的装置数量,在同一功率分配部中的每一次的装置类型和装置。 基于设备类型的功率消耗预测单元4基于期望值g(t)计算每种设备类型的功率消耗的期望值h(t)和相同功率分配部分中的每一次设备的期望值h(t) 启动设备的数量和设备功率特性模型。
    • 8. 发明专利
    • Disconnection detector
    • 断路检测器
    • JP2014045638A
    • 2014-03-13
    • JP2012188268
    • 2012-08-29
    • Mitsubishi Electric Corp三菱電機株式会社
    • KITAMURA SEIICHIMATSUBARA RYUNOSUKEKOJIMA YASUHIROTAKANO TOMIHIRO
    • H02H7/26G01R31/02H02H3/00H02J13/00
    • Y02E60/725Y04S10/20
    • PROBLEM TO BE SOLVED: To provide a disconnection detector that is able to suppress communication traffic and detect a disconnection point inexpensively.SOLUTION: A disconnection detector 150 according to the invention is the disconnection detector 150 which detects a disconnection point of a power distribution system. At a pre-stage of a load facility 109 of a user 107, a meter reading terminal with a communication function 108 able to communicate with the disconnection detector 150 is provided. The disconnection detector 150 comprises: an outage-per-transformer determination unit 152 for performing outage determination of a transformer 106 on the basis of a result of communication with the meter reading terminal with a communication function 108 connected with the transformer 106 which is an object of outage determination; and a disconnection determination unit 151 for determining the disconnection point of the power distribution system on the bases of the determination of the outage-per-transformer determination unit 152. An outage determination object transformer 106 is the transformer 106 extracted at each end 105 of the power distribution system, and the transformer is characterized in that it is a transformer closest to the end 105 and extracted regarding at least two of connection phases to connect with a power distribution transformer station 101 side.
    • 要解决的问题:提供能够抑制通信流量并且廉价地检测断开点的断开检测器。解决方案:根据本发明的断路检测器150是检测配电系统的断开点的断开检测器150。 在用户107的负载设备109的前级,提供了能够与断线检测器150通信的具有通信功能108的读表终端。 断线检测器150包括:每变压器断电确定单元152,用于基于与具有与作为对象的变压器106连接的通信功能108的与抄表终端通信的结果来执行变压器106的中断确定 停电确定; 以及断线确定单元151,用于基于每变压器断电确定单元152的确定来确定配电系统的断开点。断电确定对象变压器106是在每个变压器断电的每个端部105处提取的变压器106 配电系统,并且变压器的特征在于它是最靠近端105的变压器,并且提取关于至少两个连接相以与配电变电站101侧连接的变压器。
    • 9. 发明专利
    • Combinatorial optimization system
    • 组合优化系统
    • JP2009048353A
    • 2009-03-05
    • JP2007212694
    • 2007-08-17
    • Mitsubishi Electric Corp三菱電機株式会社
    • YAMAMOTO TAKANARITAKANO TOMIHIRO
    • G06F19/00G06N3/00G06Q10/04
    • PROBLEM TO BE SOLVED: To provide a combinatorial optimization system that can solve a combinatorial optimization problem fast with a reduced probability of ending with a local solution. SOLUTION: The combinatorial optimization system comprises: a second neighborhood search means 33 for defining a set of adjacent states whose discrete variable values are changed to a great extent from a current state as a second neighborhood, and executing the processing of a second neighborhood generation means 22, an optimum solution/best solution updating means 24, a taboo list updating means 25 and a second neighborhood search end determination means 26 to perform optimization by regarding the second neighborhood as the adjacent state; and a first neighborhood search means 34 for defining a set of adjacent states whose discrete variables are changed to a lesser extent from the current state as a first neighborhood, and executing the processing of a first neighborhood generation means 28, the optimum solution/best solution updating means 24, the taboo list updating means 25 and a first neighborhood search end determination means 29 to perform optimization by regarding the first neighborhood as the adjacent state. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种组合优化系统,可以以降低的以局部解决方案结束的概率快速解决组合优化问题。 组合优化系统包括:第二邻域搜索装置33,用于定义一组相邻状态,其离散变量值从作为第二邻域的当前状态大大地改变,并且执行第二个处理 邻域发生装置22,最佳解/最佳解决方案更新装置24,禁忌列表更新装置25和第二邻域搜索结束确定装置26,通过将第二邻域作为相邻状态来执行优化; 以及第一邻域搜索装置34,用于定义一组相邻状态,其离散变量从作为第一邻域的当前状态改变到较小程度,并且执行第一邻域生成装置28的处理,最佳解/最佳解 更新装置24,禁忌列表更新装置25和第一邻域搜索结束确定装置29,通过将第一邻域作为相邻状态来执行优化。 版权所有(C)2009,JPO&INPIT