专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明专利

JPS63217924A RESTORATION PROCEDURE GUIDANCE SYSTEM AGAINST POWER SYSTEM FAILURE 失效
公开(公告)号：JPS63217924A
公开(公告)日：1988-09-12
申请号：JP5104387
申请日：1987-03-05
申请人： TOKYO ELECTRIC POWER CO , MITSUBISHI ELECTRIC CORP
发明人： KOJIMA YUKIO , WARASHINA SHIGERU , MATSUMOTO KEINOSUKE
IPC分类号： H02J3/00 , H02J3/04

12. 发明专利

JPH03256529A SIMULATOR SYSTEM FOR ANALYZING ELECTRIC POWER SYSTEM 失效
公开(公告)号：JPH03256529A
公开(公告)日：1991-11-15
申请号：JP5562590
申请日：1990-03-06
申请人： MITSUBISHI ELECTRIC CORP , TOKYO ELECTRIC POWER CO
发明人： KOJIMA YUKIO , WARASHINA SHIGERU , SATO NOBUYUKI , TAOKA HISAO , IYODA ISAO , NOGUCHI HIDEO
IPC分类号： H02J3/00
摘要： PURPOSE:To simulate the phenomenon of a large-scale electric power system through a simple setting by performing connection and data transfer between an analog and digital simulators with an AD/DA converter. CONSTITUTION:An analog simulator 3 is constituted of small-sized devices 4 which respectively simulate components of an electric power system. A digital simulator 5 makes arithmetic operations at a speed close to the progressing speed of the actual phenomenon of the system and simulates the phenomenon of the electric power system in real time. An AD/DA converter 6 is connected with the simulators 3 and 5 and transfers data between them. Therefore, the phenomenon of a large-scale electric power system can be set readily and the system can be changed easily. Moreover, the phenomenon of actual equipment which is hard to be analyzed with a computer can be analyzed and the error between actual equipment and its simulator can be reduced.

13. 发明专利

JPH03256525A REAL-TIME SIMULATOR FOR LARGE-SCALE POWER SYSTEM 失效
公开(公告)号：JPH03256525A
公开(公告)日：1991-11-15
申请号：JP5562190
申请日：1990-03-06
申请人： MITSUBISHI ELECTRIC CORP , TOKYO ELECTRIC POWER CO
发明人： KOJIMA YUKIO , WARASHINA SHIGERU , SATO NOBUYUKI , TAOKA HISAO , IYODA ISAO , NOGUCHI HIDEO
IPC分类号： H02J3/00
摘要： PURPOSE:To perform simulation at a speed which is close to the progressing speed of an actual phenomenon by performing network calculation of one bus by only using the information of the bus directly connected with the bus. CONSTITUTION:The differential equation of each component constituting a power system is arranged to each CPU 1 of a distributed computer having a plurality of CPUs 1. Calculated results of each CPU1 obtained in the distributed state are transferred through communication lines 2 connecting the CPU 1 to each other and the phenomenon of this electric power system is simulated. When network calculation of one bus 31 which is one of the above-mentioned components is performed, the calculation is performed by only using the information of the bus directly connected with the bus 31. Therefore, a network equation can be calculated at a high speed and, as a result, the phenomenon of the electric power system can be analyzed by the distributed computer at a speed which is close to the progressing speed of an actual phenomenon which takes place on the system.

14. 发明专利

JPH02136035A ACCIDENT RESTORATION SYSTEM 失效
公开(公告)号：JPH02136035A
公开(公告)日：1990-05-24
申请号：JP28803988
申请日：1988-11-15
申请人： TOKYO ELECTRIC POWER CO , TOSHIBA CORP
发明人： KOJIMA YUKIO , WARASHINA SHIGERU , KATO MASAICHI
IPC分类号： H02J3/00 , G05B23/02
摘要： PURPOSE:To make a restoration plan with a good efficiency by selecting a restoration procedure for a past accident case similar to the accident state of a case in question and by inferring said plan from a rule necessary for making said restoration procedure and form the information of the state of system operation before and after said accident. CONSTITUTION:When a power failure accident occurs in an electric system 1, an accident equipment is decided and an unusable equipment is fixed, information to that effect is inputted to a digital computer 3 via an input device 2. An equipment operating before and after the accident of said unusable equipment, the magnitude of a load, the output of a power station, etc., are stored in a storage means 31. Then, the comparison of a case in question with past accident cases stored in said storage means 31 is performed by a computing means 33. When there is any similar accident, the practicability of a restoration procedure of said similar accident is checked and said restoration procedure is optimized. When it is judged that there is no similar accident, the knowledge of a storage means 34 is used so that a computing means (inference engine) 35 is drawing an inference therefrom while amending said inference to make the optimal restoration procedure.

15. 发明专利

JPS63294221A RESTORATION SYSTEM OF ACCIDENT OF POWER SYSTEM 失效
公开(公告)号：JPS63294221A
公开(公告)日：1988-11-30
申请号：JP12710487
申请日：1987-05-26
申请人： TOKYO ELECTRIC POWER CO , TOSHIBA CORP
发明人： KOJIMA YUKIO , WARASHINA SHIGERU , KATO MASAICHI
IPC分类号： H02J3/04 , H02H7/26 , H02J3/00
摘要： PURPOSE:To determine a breaker conducting quick restoration and the operation of disconnection by preparing the plan of restoration on service interruption within a wide range and deciding and operating the receiving system of an electric station. CONSTITUTION:The accident of service interruption is generated in a system 1, and the information of a working protective relay and a breaker, the voltage of the inside of the system and the information of a tidal current are taken into a digital computer 3 through an input device 2. The information of the protective relay and the breaker is stored in an arithmetic unit 5 deciding the facilities of the accident and the voltage of the inside of the system and the information of the tidal current in a storage device 7 for preparing the plan of restoration. The facilities of the accident are decided by the arithmetic unit 5, and the result of decision is stored in a storage device 6. The proper data of the system stored in a memory section 81 and the knowledge base of the restoration of the system of a memory section 82 are added, and the plan of restoration is prepared. Knowledge determining the receiving systems of electric stations for the memory section 83 is used on the basis of the plan of the restoration, and inference is conducted by an arithmetic section 9, thus determining the receiving systems of each electric station, the operation of the breaker and a disconnection section.

16. 发明专利

JPS63316622A DEVICE FOR FORMATION OF POWER SYSTEM RECOVERY PLAN 失效
公开(公告)号：JPS63316622A
公开(公告)日：1988-12-23
申请号：JP15272987
申请日：1987-06-19
申请人： TOKYO ELECTRIC POWER CO , TOSHIBA CORP
发明人： KOJIMA YUKIO , WARASHINA SHIGERU , KATO MASAICHI , HORI MASAO
IPC分类号： H02J3/00 , H02H7/26
摘要： PURPOSE:To obtain a device for forming safe and reliable recovery plan corresponding to system condition, by judging a possibly faulty facility upon occurrence of fault then forming a recovery plan sequentially in the order of less possible faulty facility. CONSTITUTION:Information of a power system 1 is taken into an input device 2 so as to judge a power interruption zone through a power interruption zone judging means 5 based on operational information of relay or circuit breaker. A possibly faulty facility is judged through a faulty facility judging means 7 based on same information and the possibility of fault is calculated. Threshold of operational condition of the power system 1 obtained based on the system information is stored in a storage device 9. An arithmetic unit 10 prepares a recovery plan at first without employing the possibly faulty facility at all, and if the plan can not be prepared, facilities having operational condition lower than the threshold stored in the storage device 9 are employed in the order of increasing possibility so as to prepare a recovery plan.

17. 发明专利

JPH0599969A THREE PHASE ELECTRONLIKE LOADING DEVICE 失效
公开(公告)号：JPH0599969A
公开(公告)日：1993-04-23
申请号：JP26434191
申请日：1991-10-14
申请人： TOKYO ELECTRIC POWER CO , FUJI ELECTRIC CO LTD
发明人： WARASHINA SHIGERU , KOJIMA YUKIO , NAKANISHI YOUSUKE
IPC分类号： G01R21/00 , G01R31/00 , H02J3/00
摘要： PURPOSE:To simulate comparatively faithfully the transient variation of electric power with the transient variation of voltage. CONSTITUTION:To a three phase power source device 2, three series (1A, 1B, 1C) of electron loading device each consisting of an A/D converter, a digital calculator (MP), a D/A converter and V/I converter are provided. By using a specific dynamic characteristics model having a result of applying to an actual electric system for the load characteristics setting value of each electronlike loading device, an actual load function can be simulated.

18. 发明专利

JPH02136036A ACCIDENT RESTORATION SYSTEM 失效
公开(公告)号：JPH02136036A
公开(公告)日：1990-05-24
申请号：JP28804088
申请日：1988-11-15
申请人： TOKYO ELECTRIC POWER CO , TOSHIBA CORP
发明人： KOJIMA YUKIO , WARASHINA SHIGERU , KATO MASAICHI
IPC分类号： H02J3/00
摘要： PURPOSE:To contrive to improve a restoration efficiency by referring to a stored accident case and restoration procedure, by making the optimal restoration procedure suitable for an accident in question and by completing said stored restoration procedure by the use of said optimal procedure. CONSTITUTION:When a power failure accident occurs in an electric system, an accident equipment is decided and an unusable equipment is fixed, information to that effect is inputted to a digital computer 3 via an input device 2 so that a restoration plan starts to be made. In view of examination of various accident cases, restoration procedures substantially coincide with each other in accident cases where the following three conditions coincide with each other: 1 A failed or unusable transmitting and transforming equipment, 2 Demand and supply section, concretely, a peak time zone, an intermediate time zone, etc. 3 An unusable generator equipment at the time of an accident. When all three conditions do no coincide with each other, a coinciding accident case is selected in the order of 1, 2 and 3. A restoration procedure selected from a storage means 32 is amended by a computing means 34 to form a restoration procedure more completed than the accident case.

19. 发明专利

JPH0213229A POWER SYSTEM FAULT RECOVERY GUIDANCE SYSTEM 失效
公开(公告)号：JPH0213229A
公开(公告)日：1990-01-17
申请号：JP15992988
申请日：1988-06-28
申请人： TOKYO ELECTRIC POWER CO , TOSHIBA CORP
发明人： KOJIMA YUKIO , WARASHINA SHIGERU , KATO MASAICHI
IPC分类号： H02J3/00
摘要： PURPOSE:To perform recovery operation safely, quickly and reliably by simulating every operation intended by an operator and checking the operation. CONSTITUTION:An operator 5 inputs his intended operation content through a man-machine interface to a digital computer 3. Voltage, power flow and operation of generator are checked at an operating section 7 based on the input by a switch upon recovery and system data stored in a memory 6. If there is no abnormal phenomenon such as overvoltage in the system and the system can be operated, a new recovery schedule is prepared at an operating section 8 based on the system condition through driving of knowledge base 9. If the system can not be operated because of an abnormal phenomenon in the system, it is displayed to the operator 5 through the man-machine interface 4.

20. 发明专利

JPS63316624A SYSTEM FOR RECOVERY OF POWER SYSTEM FROM ACCIDENT 失效
公开(公告)号：JPS63316624A
公开(公告)日：1988-12-23
申请号：JP15273187
申请日：1987-06-19
申请人： TOKYO ELECTRIC POWER CO , TOSHIBA CORP
发明人： KOJIMA YUKIO , WARASHINA SHIGERU , KATO MASAICHI
IPC分类号： H02J3/00
摘要： PURPOSE:To achieve a highly efficient and flexible recovery system, by operating a recovery plan forming means with predetermined timing during recovery process and sequentially updating the recovery plan with newest data. CONSTITUTION:Various information of a power system 1 is taken through an input means 2 and stored in a storage device 3. Upon provision of a start signal 31 for setting a recovery plan from an arithmetic unit 6, a recovery plan is prepared dn a recovery plan preparing means 4 based on system information stored in the storage device 3. The recovery plan is outputted through a second storage means 5 from an output means 7. Furthermore, starting signals 31 are provided with predetermined timing from the arithmetic unit 6 and newest system information is provided from the storage device 3 to the preparing means 4 for every starting signal 31 so as to update the recovery plan sequentially.

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