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1. 发明专利

JPH07135738A STABILITY DECIDING SYSTEM OF POWER SYSTEM 失效
公开(公告)号：JPH07135738A
公开(公告)日：1995-05-23
申请号：JP30094993
申请日：1993-11-05
申请人： CHUBU ELECTRIC POWER , TOSHIBA CORP
发明人： KOBAYASHI IKUO , INOUE NORIHIRO , TSUKADA MASUO , IKUTA NAOKI , ITO HISATOKU , KOMATA KAZUYA , ASANO TOSHIAKI
IPC分类号： H02J3/24 , H02P9/14
摘要： PURPOSE:To apply the stability decision system of a power system to a main protection fault, in which system configuration after a fault is eliminated controls stability, by using the quantity of unbalance between generators of deceleration force displaying the difference of stability by system configuration after the fault is eliminated as a stability index and computing and deciding stability in details when the quantity of unbalance exceeds a threshold. CONSTITUTION:Current system information is collected at a step S1, and the state of a power flow is computed at a step S2. A large number of assumed disturbance f1, f2,...fn are set at a step S3, transient stability up to a moment when a fault is eliminated is calculated at a step S4, and outputs from each generator before the fault is generated and in a moment when the fault is eliminated are acquired. DP values to each assumed disturbance are computed on the basis of these results and the inertial constants of each generator at a step S5, the DP values and a threshold DP* are compared at a step S6, and instability is decided temporarily to the assumed disturbance when the DP values are larger than the threshold DP*. Transient stability is calculated at a step S7, and stability is decided in details.

2. 发明专利

JPH06301560A COMPUTER TASK MANAGEMENT SYSTEM 失效
公开(公告)号：JPH06301560A
公开(公告)日：1994-10-28
申请号：JP11207893
申请日：1993-04-15
申请人： TOSHIBA CORP
发明人： ASANO TOSHIAKI
IPC分类号： G06F9/46
摘要： PURPOSE:To constitute the computer task management system so that it is unnecessary to describe a representative name of data resources for the purpose of switching, etc., of the data resources in an application program, and also, the same program can be executed simultaneously, and moreover, as for a generated task, one is accessed selectively from in plural data resources being independent, respectively. CONSTITUTION:The system consists of a task generating means 11 for receiving a task actuation request from the outside and generating a task, a management table 12 for showing the correspondence of a representative name of data resources, a task name and a name of a program to be executed, and a task identifier allocated from an OS, and a data access means 13 for determining the data resources to be tasked from the task identifier and accessing the data.

3. 发明专利

JPH066937A CONNECTION DISPLAY SYSTEM OF ELECTRIC-POWER SYSTEM 失效
公开(公告)号：JPH066937A
公开(公告)日：1994-01-14
申请号：JP15840092
申请日：1992-06-18
申请人： TOSHIBA CORP
发明人： ASANO TOSHIAKI
IPC分类号： H02J3/00
摘要： PURPOSE:To easily recognize a power flow route by a method wherein the color of a connection display element arranged at a place where a bus displayed on a power flow diagram and symbolized for every voltage class by a single lines is connected to system constituent apparatus such as a transformer, a transmission line or the like is made identical to that of the bus. CONSTITUTION:The connection state of the following is represented by colors of connection display elements DU1 to DU30: system constituent apparatuses such as transformers Tr1 to Tr7, transmission lines Tl1 to Tl8 and the like which are displayed on a power flow diagram; and buses which are represented by single-line symbols BUS1 to BUS6 for every voltage class such as e.g. 275kV or 154kV. The colors of the connection display elements DU1 to DU30 are determined to be different for the individual buses to be connected. When a breaker and a disconnecting switch are turned on and off, they are displayed by the colors of the buses which are connected electrically. Thereby, the visual recognition property of the connection state is not deteriorated in the power flow diagram of a large-scale power system, and it is possible to easily recognize the route in which a power flow flows.

4. 发明专利

JP2003032900A Power consignment control system and power transaction method 有权
标题翻译：功率控制系统和功率交易方法
公开(公告)号：JP2003032900A
公开(公告)日：2003-01-31
申请号：JP2001253642
申请日：2001-07-21
申请人： Toshiba Corp , 株式会社東芝
发明人： ASANO TOSHIAKI , ITO JUICHIRO , SATO OSAMU , SUGANO YOSHIHIRO , HONDA KEIZO , HOSHINO YUJI
IPC分类号： G06Q50/00 , G06Q50/06 , H02J3/00 , H02J3/46 , H02J13/00 , G06F17/60
CPC分类号： Y02E40/72 , Y04S10/12
摘要： PROBLEM TO BE SOLVED: To solve the problem of a conventional system such as that for a power company, the burden of possession, maintenance, and management of a facility for maintenance of reliability on supply becomes large by the amount of increase of market participants, as a result, the company is compelled to raise the unit price of consignment inevitably as compared with a previous power transaction regulated period.
SOLUTION: This system is equipped with a means which stores the node position information of each power generating facility; a means which inputs the output information of each power generating facility stated above; a means which inputs the power consumption information of the load of a power consumer; a means which inputs the power stability information of the connected nodes of each power generating facility stated above; a means which computes the total value to output of the above power stability information using the power consumption information of the above power consumer, and gets the value to output separately for each power generating facility stated above, based on the above power stability information; and a means which outputs a control command to each power generating facility stated above, based on the value to output of each power generating facility stated above obtained by that means.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了解决电力公司等常规系统的问题，通过市场参与者的增加量，用于维护供应可靠性的设备的占有，维护和管理的负担变大，因此，与以前的电力交易规定期相比，该公司被迫不得不提高货物单价。解决方案：该系统配备有存储每个发电设备的节点位置信息的装置; 输入上述每个发电设备的输出信息的装置; 输入消耗电力负载的功耗信息的方法; 输入上述每个发电设备的连接节点的功率稳定性信息的装置; 基于上述电力稳定性信息，使用上述电力消费者的电力消耗信息计算出上述功率稳定性信息的总值输出的装置，并且根据上述功率稳定性信息获得上述各发电设备分别输出的值; 以及基于上述通过该装置获得的每个发电设备的输出值向上述每个发电设备输出控制命令的装置。

5. 发明专利

JP2002091932A COMPUTER SYSTEM 失效
公开(公告)号：JP2002091932A
公开(公告)日：2002-03-29
申请号：JP2000279803
申请日：2000-09-14
申请人： TOSHIBA CORP
发明人： ASANO TOSHIAKI
IPC分类号： G06F11/30 , G06F1/00 , G06F9/46 , G06F15/16 , G06F21/22
摘要： PROBLEM TO BE SOLVED: To provide a computer system capable of appropriately maintaining reliability even though the monitoring range of an agent exceeds a management range. SOLUTION: When the exchange processing part 13 of the agent 11 encounters another agent 12 on a monitoring destination computer 1, data or programs owned by the both agents 11 and 12 are exchanged between the agents 11 and 12, the processing part 13 stores the exchanged data or program of the agent 12 in a storing part 14 for exchange, a substitute performing part 15 performs the data or program stored in the part 14 in the place of the opposite agent the agent 11 encounters.

6. 发明专利

JP2012152058A Photovoltaic power generation system 有权
标题翻译：光伏发电系统
公开(公告)号：JP2012152058A
公开(公告)日：2012-08-09
申请号：JP2011009857
申请日：2011-01-20
申请人： Toshiba Corp , 株式会社東芝
发明人： KIMURA MISAO , NORO YASUHIRO , HAYASHI HIDEKI , KOMATA KAZUYA , ASANO TOSHIAKI , EHATA YOSHIO , OTSUKI MIDORI
IPC分类号： H02J3/38 , G05F1/67
摘要： PROBLEM TO BE SOLVED: To provide a photovoltaic power generation system capable of stable electricity supply according to an operation state of a power system.SOLUTION: A photovoltaic power generation system includes: means 6 and 7 for which detect a connecting point voltage Va between a power system 5 and a power converter 3 and an output current Ia of the power converter 3; an effective power detecting part 8 which obtains an effective power from the connecting point voltage Va and the output current Ia; a system state detection part 10 which detects a power supply state or an apparatus operation state in the power system 5 and outputs a level detection signal; an effective power setting part 11 in which a preset first value and a preset second value are switched based on the level detection signal and outputted as an effective power setting value Pref; a mass-point system calculation unit 12 which calculates an angular frequency ω of an output voltage of the power converter 3 based on an output of the effective power detecting part 8, an output of the effective power setting part 11 and an output of the system state detection part 10; and an electric characteristic calculation unit 15 which calculates an output voltage target value Ec of the power converter 3 based on the angular frequency ω, the current value Ia and a set voltage value Vref.
摘要翻译：要解决的问题：提供一种能够根据电力系统的运行状态稳定供电的光伏发电系统。光伏发电系统包括：检测电力系统5和功率转换器3之间的连接点电压Va和功率转换器3的输出电流Ia的装置6和7; 有效功率检测部分8，其从连接点电压Va和输出电流Ia获得有效功率; 系统状态检测部10，其检测电力系统5中的电源状态或装置运行状态，并输出电平检测信号; 基于电平检测信号切换预设的第一值和预设的第二值的有效功率设定部11，作为有效功率设定值Pref输出。质点系统计算单元12，其基于有效功率检测部分8的输出，有效功率设定部分11的输出和系统的输出来计算功率转换器3的输出电压的角频率ω 状态检测部10; 以及电特性计算单元15，其根据角频率ω，电流值Ia和设定电压值Vref计算功率转换器3的输出电压目标值Ec。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2001075900A MONITOR AND CONTROL SYSTEM, AND RECORDING MEDIUM 失效
公开(公告)号：JP2001075900A
公开(公告)日：2001-03-23
申请号：JP25320399
申请日：1999-09-07
申请人： TOSHIBA CORP
发明人： ASANO TOSHIAKI , KAINO YASUO , ONISHI YASUNORI , WADA KIYOSHI , NAGAI YASUO , HASEGAWA OSAMU
IPC分类号： G05B23/02 , G06F12/00 , G06F13/00 , G06F15/177
摘要： PROBLEM TO BE SOLVED: To automatically update the management information on a required number of computers only by updating the management information on one computer. SOLUTION: Among plural monitor control servers and plural monitor control terminals on a network, and one arbitrary computer is provided with data bases 15 and 19 for managing control equipment to be monitored, an update information preparing means 21 for preparing update information from data equivalent to management information inputted from the outside, and for storing it in an update information memory 23, a management information updating means 25 for comparing the stored update information with the management information of the data bases, and for updating the management information by using the new update information, and a management information transmitting means 26 for transmitting the updated information to another computer based on the contents of the update information.

8. 发明专利

JPH07288932A COOPERATIVE CONTROL METHOD IN VOLTAGE REACTIVE POWER CONTROL 失效
公开(公告)号：JPH07288932A
公开(公告)日：1995-10-31
申请号：JP10078294
申请日：1994-04-14
申请人： TOSHIBA CORP
发明人： ASANO TOSHIAKI , NAKAMURA SUSUMU , TAKAHASHI OYUMI
IPC分类号： H02J3/16 , H02J3/50
摘要： PURPOSE:To attain uniformity of distributing a control quantity without generating overexcitation of a generator and its leading power factor operation by using an index and a control weight coefficient representing an adjusting effect, and calculating a reactive power quantity of the generator and reactive power supplier. CONSTITUTION:In a process 11, a control effect quantity of a generator and each reactive power supplier is calculated, successively to perform processes from a process 13 to a process 15 relating to all the control object generators by a process 12. First in the process 13, an adjusting direction of control is decided from a code of the control effect quantity, and in the process 14, a correction coefficient nj is calculated, to multiply by the control effect quantity of the generator (j), calculated in the process 11, in the process 15. Thus as a result, by suppressing overexcitation and leading power factor operation of the generator further with a control surplus ensurable, also a reactive power control quantity in a generation period can be uniformly distributed.

9. 发明专利

JPH06165379A SYSTEM FOR SUPPORTING RECOVERY OF POWER SYSTEM FROM FAULT 失效
公开(公告)号：JPH06165379A
公开(公告)日：1994-06-10
申请号：JP33970292
申请日：1992-11-26
申请人： TOKYO ELECTRIC POWER CO , TOSHIBA CORP
发明人： NAGAHAMA MORIYOSHI , MIYAZAKI MINORU , SUGANUMA ISAO , ISHIGE HIROKAZU , KOBAYASHI TAKAYUKI , ASANO TOSHIAKI , KATO MASAICHI
IPC分类号： H02J3/00
摘要： PURPOSE:To eliminate overload by the changeover of a system, the separation of a bus, the changeover of load, etc., by computing the optimum quantity of adjustment of generation power according to the point of overload occurrence, in a system of supporting recovery of a power system from a fault. CONSTITUTION:A system of supporting recovery from a fault has a means 1 which detects overload in a loop system and in a power system of a group of substations interconnected radially by the loop system, a means 21 which examines the quantity of adjustment of a generator so as to eliminate overload and the system operation procedure, and a display means 5. Furthermore, each of the substations is equipped with a means 22 which computes transmittable power, a means 23 which selects the system constitution large in transmittable power by examining overload eliminating means in every substation from the most upstream substation where the transmittable power is negative and the absolute value is maximum to end side, and comparing the positives and negatives of the transmittable power of a substation concerned and the transmittable power of the substations at the destination of changeover and at the origin of changeover and the magnitudes of absolute values, and an overload eliminating procedure making means 24, which repeats the selection of system constitution until the substation where the transmittable power is negative.

10. 发明专利

JPH04197037A POWER FLOW CALCULATING SYSTEM 失效
公开(公告)号：JPH04197037A
公开(公告)日：1992-07-16
申请号：JP32327490
申请日：1990-11-28
申请人： TOSHIBA CORP
发明人： ASANO TOSHIAKI
IPC分类号： H02J3/00
摘要： PURPOSE:To control an operation output of a generator from correspondence of effective power of the generator to reactive power and to process at a speed durable for on-line use by approximating characteristic range of the reactive power of the generator, and obtaining upper and lower limit values of the reactive power from the effective power of the generator. CONSTITUTION:Reactive power characteristics of generators are approximated, and a table of numeric values for characterizing the approximate range is stored in a memory area. The upper and lower limit values of reactive power corresponding to present effective power are calculated by using the stored numeric values. An admittance matrix (Y matrix) is LU-decomposed, forward and reverse substituted by using L and U matrixes to calculate a voltage mismatch, and the mismatches are added to update a voltage value.

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