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1. 发明专利

JP2014174113A Method for predicting probability density distribution of repeated load caused to strung wire implement due to natural wind 有权
标题翻译：用于预测由于天然风造成的电线实施造成重复负荷的可能性密度分布的方法
公开(公告)号：JP2014174113A
公开(公告)日：2014-09-22
申请号：JP2013049489
申请日：2013-03-12
申请人： Tokyo Electric Power Co Inc:The , 東京電力株式会社 , Nasu Denki Tekko Co Ltd , 那須電機鉄工株式会社
发明人： SUGANO NORIHIRO , OGIWARA YOSHINORI , MABUCHI HIROYUKI , TOKUYAMA HIDEKI , TAKAHASHI TORU , KOKAJI TAKAYUKI
IPC分类号： G01M9/06
摘要： PROBLEM TO BE SOLVED: To provide a method for predicting probability density distribution of a repeated load, which can accurately grasp the repeated load applied to an implement.SOLUTION: A correlation between a repeatedly fluctuating load applied in a line direction of a distribution line and a wind velocity is used with respect to a support implement which supports the distribution line strung from a pole to the pole. Furthermore, probability density distribution of a natural wind at an arbitrary point at a height of the strung distribution line, which is affected by land-use conditions, is predicted from known wind velocity observed data. Thus, the probability density distribution of the repeated load which is applied to the support implement installed at the arbitrary point in the line direction of the distribution line is predicted.
摘要翻译：要解决的问题：提供一种用于预测重复负载的概率密度分布的方法，其可以准确地掌握施加到工具的重复负载。解决方案：在分配线的线方向上施加的重复波动负载与相对于支撑从杆极到杆的分配线支撑的工具使用风速。此外，从已知的风速观测数据预测受到土地利用条件影响的串联配线的高度任意点处的自然风的概率密度分布。因此，预测施加到安装在分配线的线方向上的任意点的支撑机构的重复负载的概率密度分布。

2. 发明专利

JP2004045118A Fault point survey method for overhead distribution line 有权
公开(公告)号：JP2004045118A
公开(公告)日：2004-02-12
申请号：JP2002200775
申请日：2002-07-10
申请人： Meidensha Corp , Tokyo Electric Power Co Inc:The , 東京電力株式会社 , 株式会社明電舎
发明人： KANAI NOBUYUKI , OGIWARA YOSHINORI , ITO TAKAMITSU , FUJIMOTO TOSHIRO
IPC分类号： G01R31/08
摘要： PROBLEM TO BE SOLVED: To accurately specify a fault point to simplify survey work in a method of surveying the fault point by applying high tension pulse voltage to an overhead distribution line.
SOLUTION: An electrifying device 1 applies voltage to an electrifying point of the distribution line, and the voltage and current at the electrifying point are measured. A fault point survey arithmetic unit 2 obtains the measurement impedance of the distribution line from the measured values of the voltage and current of the electrifying point, takes out an imaginary part of the impedance as the measurement inductance and divides the measurement inductance by inductance of unit length of the distribution line to specify the distance from the electrifying point to the fault point. The method includes narrowing to one fault point by carrying out distance specification twice or more from different points to the distribution line with a branch; formulating two simultaneous equations from time series data acquired by voltage and current measurement and solving them to determine the measurement inductance; and specifying the fault point by subtracting a sound phase current from a fault phase current to correct the air-to-ground electrostatic capacity of the distribution line.
COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2003043077A Higher harmonic measuring equipment 审中-公开
标题翻译：更高谐波测量设备
公开(公告)号：JP2003043077A
公开(公告)日：2003-02-13
申请号：JP2001233389
申请日：2001-08-01
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： YASUKAWA SABURO , NAMIKATA KIYONORI , OGAWA KENJI , KOGURE EIJI , KIKUCHI TOSHIHIRO , OGIWARA YOSHINORI , MAKI MAKOTO
IPC分类号： G01R27/02 , G01R19/00 , G01R23/20 , H02H3/52
摘要： PROBLEM TO BE SOLVED: To solve such a problem that it has been impossible to avoid the size of an oscillator becoming larger, which is required conventionally for taking following current measures, insulation measures for example, to deal with a current of a three-phase power system noise currents which flow in the oscillator in a harmonic current injector.
SOLUTION: Reduction in the size of the oscillator 8 is realized, by causing the harmonic current injector 13 to have an oscillator 8 and a filter 9 which causes only a power-system 1 side current to flow, and causing only noise currents to flow in the oscillator 8.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了解决这样的问题，即不可能避免振荡器的尺寸变大，这是传统上用于采取以下电流措施所需要的绝缘措施，例如，以处理三相电流在谐波电流注入器中在振荡器中流动的电力系统噪声电流。解决方案：通过使谐波电流注入器13具有振荡器8和滤波器9来实现振荡器8的尺寸的减小，该振荡器8和滤波器9仅使电力系统1侧电流流动，并且仅使噪声电流流入振荡器8。

4. 发明专利

JP2012196012A Generator output estimation method, and system and program thereof 有权
标题翻译：发电机输出估算方法及其系统及程序
公开(公告)号：JP2012196012A
公开(公告)日：2012-10-11
申请号：JP2011056645
申请日：2011-03-15
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： AIHARA TAKASHI , KOBAYASHI YASUHIRO , WATANABE MASAHIRO , OGIWARA YOSHINORI , MABUCHI HIROYUKI , UTSUMI TETSUYA
IPC分类号： H02J3/00 , H02J13/00
摘要： PROBLEM TO BE SOLVED: To provide a generator output estimation method, and a system and a program thereof, which dispense with measurement because of frequent interruption of a generator even if there is secular and seasonal load fluctuation once a regression equation is acquired.SOLUTION: The estimation method of an output of a generator includes a first step for measuring electric quantity in an objective distribution line section, a second step for calculating a positive phase current and reverse phase current during a period while the generator is suspended, a third step for acquiring a regression equation of the positive phase current and the reverse phase current, a fourth step for acquiring a reverse phase current in a distribution line section, a fifth step for calculating an estimated value of the positive phase current during the period the generator is suspended, a sixth step for acquiring a positive phase current in the distribution line section during a period the generator is operated, and a seventh step for calculating a current deviation which is an output current of the generator. The regression equation of the positive phase current and the reverse phase current acquired in the third step is appropriately changed according to a secular and seasonal load fluctuation.
摘要翻译：要解决的问题：提供一种发电机输出估计方法及其系统和程序，其一旦获得回归方程，即使存在长期和季节性的负载波动，由于发电机的频繁中断而省去了测量。解决方案：发电机的输出的估计方法包括用于测量目标分配线路部分中的电量的第一步骤，用于在发电机暂停期间计算正相电流和反相电流的第二步骤用于获取正相电流和反相电流的回归方程的第三步骤，用于获取配电线路部分中的反相电流的第四步骤，用于计算所述正相电流和所述反相电流的正相电流的估计值的第五步骤，在发电机运转的期间，第六步骤，用于获取配电线路段中的正相电流;以及第七步骤，用于计算作为发电机的输出电流的电流偏差。根据季节性和季节性负荷波动，适当地改变在第三步骤中获取的正相电流和反相电流的回归方程。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2011210418A Insulated electric wire, and cable 有权
标题翻译：绝缘电线和电缆
公开(公告)号：JP2011210418A
公开(公告)日：2011-10-20
申请号：JP2010074751
申请日：2010-03-29
申请人： Tokyo Electric Power Co Inc:The , Viscas Corp , 東京電力株式会社 , 株式会社ビスキャス
发明人： SAKURAI TAKAHIRO , TOMINAGA YASUHIRO , TANAKA TOSHIYA , FUKATSU NAOAKI , OGIWARA YOSHINORI
IPC分类号： H01B7/02 , H01B9/00 , H01B15/00
CPC分类号： Y02W30/821
摘要： PROBLEM TO BE SOLVED: To provide an electric wire and a cable which can use more of recycled material of a cross-linked polyolefin scrap material than a conventional one and have a coating material superior in mechanical characteristics such as extension and electric characteristics.SOLUTION: The insulated electric wire and cable have at least one layer of the coating layer formed of a resin which is a recycled material mixed resin consisting of: a cross-linked polyolefin (based) recycled material with a gel fraction of 40% or less, of 60 mass% or less; and a low-density polyethylene manufactured by a high-pressure radical polymerization method with a MFR value of 0.25 or less measured in a condition of temperature 190°C, load 21.18N based on JIS K 7210. Here, the amount of blending of the cross-linked polyolefin (based) recycled material is 60 mass% or less against the recycled material mixed resin.
摘要翻译：要解决的问题：提供一种电线和电缆，其可以使用比常规的更多的交联聚烯烃废料的再循环材料，并且具有优异的机械特性如延伸和电特性的涂层材料。解决方案：绝缘电线和电缆具有由树脂形成的至少一层涂层，所述树脂是作为循环材料混合树脂的树脂，所述树脂由以下组成：凝胶分数为40％以下的交联聚烯烃（基）再循环材料， 60质量％以下和在190℃的温度下测定的MFR值为0.25以下的高压自由基聚合法制造的低密度聚乙烯，基于JIS K 7210的负荷21.18N。这里，混合量交联聚烯烃（基）再循环材料相对于再循环材料混合树脂为60质量％以下。

6. 发明专利

JP2010213513A Method and device for estimating generator output 有权
标题翻译：用于估计发电机输出的方法和装置
公开(公告)号：JP2010213513A
公开(公告)日：2010-09-24
申请号：JP2009058841
申请日：2009-03-12
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： AIHARA TAKASHI , KOBAYASHI YASUHIRO , WATANABE MASAHIRO , OGIWARA YOSHINORI , HIRAIWA NAOYA
IPC分类号： H02J3/00 , H02J13/00
摘要： PROBLEM TO BE SOLVED: To accurately estimate an output from a generator linked in a section by using information obtained from apparatuses (section switches or the like for measuring the amount of electricity such as a voltage, a current, a power factor or the like) being installed to transmission-distribution lines and measuring the amount of electricity. SOLUTION: The apparatuses measuring the amount of electricity containing the elements such as voltage, current and power factor are arranged in the target sections of the transmission-distribution lines, section inverted/normal phase currents during the stop of the generator are calculated and primary regression formula in a complex number showing the characteristics of a section load is prepared from the relationship between the phase currents. The section normal-phase current during the stop is estimated on the basis of the measured value of the section inverted-phase current during the operation of the generator and the primary regression formula, and the output (the current or an effective power) from the generator is estimated from the section normal-phase current during the operation of the generator and the difference. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过使用从设备获得的信息（用于测量诸如电压，电流，功率因数等的电量的部分开关等）来精确地估计来自连接在一个部件中的发电机的输出类似物）被安装到输配电线路上并测量电量。
解决方案：测量包含诸如电压，电流和功率因数的元件的电量的装置被布置在传输配线的目标部分中，计算发电机停止期间的部分反相/正相电流并且根据相电流之间的关系来准备表示部分负载的特性的复数中的初级回归公式。停止期间的正常相电流部分是根据发电机运行中的部分反相电流的测量值和初级回归公式估算出的，而输出（当前或有效功率）来自发电机在发电机运行期间的正常相电流和差值估算。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2012205432A Load estimation method and load estimation system for transformer 审中-公开
标题翻译：变压器的负荷估计方法和负荷估计系统
公开(公告)号：JP2012205432A
公开(公告)日：2012-10-22
申请号：JP2011068922
申请日：2011-03-25
申请人： Tokyo Electric Power Co Inc:The , 東京電力株式会社
发明人： HIROSE KENTARO , MABUCHI HIROYUKI , OGIWARA YOSHINORI
IPC分类号： H02J3/00 , G01R22/00
摘要： PROBLEM TO BE SOLVED: To provide a load estimation method and a load estimation system for transformer that estimate the load on a transformer from an unspread bank of a high-function type power meter by utilizing a user having a high function type power meter.SOLUTION: The load estimation method includes: acquiring load curves, monthly power consumptions, contract capacities, and categories of industry of new type users (300); calculating average curves by industry by totaling the load curves (302); calculating estimated error rates from the average curve by industry and the load curves (304); calculating monthly power consumption rates by the users (306); calculating error functions by industry from monthly power consumption rates and the estimated error rates (308); acquiring monthly power consumptions, contract capacities, and categories of industry from all users of transformers (310); calculating monthly power consumption rates by the users (312); calculating individual error rates from the error functions by industry and monthly power consumption rates (314); calculating estimated loads by multiplying the average curves by industry by the contract capacities and making corrections with the individual error rates (316); and calculating a maximum load on the transformer by totalizing estimated loads (318).
摘要翻译：要解决的问题：提供一种用于通过利用具有高功能型功率的用户从高功能型功率计的未扩展组估计变压器上的负载的变压器的负载估计方法和负载估计系统仪表。
解决方案：负载估计方法包括：获取负载曲线，月耗电量，合同能力和新型用户行业类别（300）; 通过总计负载曲线计算工业平均曲线（302）; 根据行业平均曲线和负荷曲线计算估计误差率（304）; 用户计算每月电力消耗率（306）; 按月消耗率计算误差函数和估计误差率（308）; 从变压器的所有用户（310）获取每月电力消耗，合同能力和行业类别; 用户计算每月功耗率（312）; 根据行业和月耗电率计算误差函数的个体差错率（314）; 通过将工业平均曲线乘以合同能力并对单个错误率进行修正来计算估计负荷（316）; 以及通过累加估计的负载来计算变压器上的最大负载（318）。版权所有（C）2013，JPO＆INPIT

8. 发明专利

JP2011205859A Load estimating method of transformer 有权
标题翻译：变压器负载估算方法
公开(公告)号：JP2011205859A
公开(公告)日：2011-10-13
申请号：JP2010073273
申请日：2010-03-26
申请人： Tokyo Electric Power Co Inc:The , 東京電力株式会社
发明人： NISHIDA YUSUKE , SUGANO NORIHIRO , MABUCHI HIROYUKI , OGIWARA YOSHINORI
IPC分类号： H02J3/00
摘要： PROBLEM TO BE SOLVED: To provide a load estimating method of a transformer enabling estimation of the maximum load with high accuracy by using an existing instrument.SOLUTION: The contract capacity of a plurality of consumers connected to individual transformers, and the electric use amount are obtained (step 200), an use amount estimating function is derived which shows the relationship between the contract amount and the estimated use amount from the contract capacity and the electric use amount (step 204), a load estimated value is calculated which estimates the maximum load of respective transformers with current meters (step 206), a load actual measurement value is obtained which is the maximum load measured in the respective transformers with the current meters (step 200), a load error is calculated which shows the error between the load estimated value and the load actual measurement value (step 212), a use amount error is calculated which shows the error between the electric use amount and the estimated use amount obtained by using the use amount estimating function (step 208), an error function is calculated which shows these relationships from the load error and the use amount error (step 214), and the load estimated value is corrected by using the error function (step 220).
摘要翻译：要解决的问题：提供一种能够通过使用现有仪器高精度地估计最大负载的变压器的负载估计方法。解决方案：连接到各个变压器的多个消费者的合同能力和电量是获得（步骤200），导出使用量估计功能，其显示从合同能力和电用量的合同量和估计使用量之间的关系（步骤204），计算估计最大值的负载估计值使用电流表进行各个变压器的负载（步骤206），得到负载实际测量值，其为在具有电流表的各个变压器中测量的最大负载（步骤200），计算负载误差，其显示负载估计值和负载实际测量值（步骤212），计算出用电量误差的使用量误差 e量和通过使用使用量估计功能获得的估计使用量（步骤208），计算出从负载误差和使用量误差示出这些关系的误差函数（步骤214），并且校正负载估计值通过使用错误功能（步骤220）。

9. 发明专利

JP2009219229A Method for suppressing harmonic voltage distortions 有权
标题翻译：抑制谐波失真的方法
公开(公告)号：JP2009219229A
公开(公告)日：2009-09-24
申请号：JP2008059456
申请日：2008-03-10
申请人： Tokyo Electric Power Co Inc:The , 東京電力株式会社
发明人： MORI KENJIRO , FUKATSU NAOAKI , OGIWARA YOSHINORI
IPC分类号： H02J3/01
摘要： PROBLEM TO BE SOLVED: To surely and effectively suppress harmonic voltage distortions, at a low cost through a simple configuration and stabilize the system voltage of a distribution system. SOLUTION: In a representative configuration of the suppression method for harmonic voltage distortions, a voltage enlargement factor α is used, which is the ratio of bank secondary harmonic voltage e to bank primary harmonic voltage E in a substation 120 for power distribution. Parameters %X, P, and C, with which the voltage enlargement factor α can be suppressed to within a predetermined range, are determined by using the voltage enlargement factor. COPYRIGHT: (C)2009,JPO&INPIT

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