JP3292579B2 - Operation blackout operation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power failure operation device for a power system, and particularly to a switch (breaker) when a part of the power system is stopped for construction or is restored after the construction is completed. , Disconnection switch, etc.) using a predetermined algorithm.

[0002]

2. Description of the Related Art FIG. 3 shows an example of a current distribution system work power failure operation device. In Fig. 3, the distribution system is a circuit breaker.
1a, 1b, feeders 2a, 2b, section switch 3a, 3b, 3c, 3
d, interconnection point switches 4a, 4b, 4c, 4d, 4e, sections 5a, 5b, 5
c, 5d, 5e, 5f, 5g, 5h, 5i, 5j and a bus 6a. The distribution system is operated in a radial system by setting the normal switchgear normally closed and the interconnection switchgear normally open. The distribution system is configured in a loopable shape in order to minimize a power failure section by switching a switch at the time of construction or an accident in some sections. 11a, 11
b, 11c, 11d, 11e are remote monitoring control device slave stations, 12 is a remote monitoring control device master station, and 13 is an electronic computer. The open / closed state of each circuit breaker, section switch, and interconnection point switch, and the current of the feeder are taken into the computer via the remote monitoring control device slave station and the same master station. The electronic computer 13 grasps the current state of the power distribution system based on the real-time information and information such as the installation relationship of the components of the power distribution system which is defined in advance. When the instruction to stop the section 5a is given to the computer 13, with reference to the current state, the distribution system configuration at a future time different from the current time defined in the computer is further developed, recognized, and recognized by a predetermined algorithm. To create the optimal switch operation procedure. The fact that such a switch operating procedure of the distribution system configuration at the future time can be created is disclosed in Japanese Patent Application No.
It is not described here because it is disclosed in U.S. Pat. Then, at the time when the operation should be started, an operation signal is transmitted from the remote monitoring control device master station to the slave station according to the created switch operation procedure, and the switch is sequentially operated. For example, in FIG. 3, sections 5a, 5b, and 5c are normally supplied with power from the feeder 2a, but when the section 5a is stopped for construction, first, the interconnection point switch 4c is turned on, and then the section 5a is turned on. The circuit breaker 1a and the section switch 3a are opened to stop the section 5a. Thereafter, the sections 5b and 5c are supplied with power from the feeder 2b.

[0003] In the above, the connection point switch 4c is turned on and the section 5
Although it has been described that power can be supplied to b and 5c, this is not always possible. 5b, 5c in feeder 2b section
In the case where the feeder 2b is overloaded as a result of the connection, the accommodation method is not suitable. In such a case, it is conceivable to supply power to the sections 5b and 5c from the feeder (not shown) to which the section 5d belongs by turning on the interconnection point switch 4a. Although detailed description is omitted, various methods are conceivable in consideration of the movement of the section in a wider range. Referring to the current state as described above, and further developing and recognizing the distribution system configuration at a future point in time different from the current point defined in the computer and stopping some sections of the distribution system due to construction work, etc. It is necessary to minimize the power failure in the remaining section (referred to as a healthy section) and to equalize the load of each feeder.
No. 7777. Such a work power failure operating device can create a switch operating procedure based on the future system status that is different from the current system configuration status, and can determine the conventional operation status by a skilled operator. This is a remarkable improvement in terms of the degree of skill of the operator, and the absence of errors, as compared to the manual operation performed by the operator.

[0004]

However, such a work power failure operating device also has the following disadvantages. 2. Description of the Related Art With the recent advancement of the information-oriented society, high-quality and stable power supply is desired, and stoppage of power supply must be avoided as much as possible regardless of accidents or work. For this reason, one of the factors considered when planning and implementing a power outage operation is the reduction of the power outage area. The actual work area is between utility poles, that is, span units, but with the current work power outage operating device described above, the minimum power outage area is the switch section unit recognized as equipment information of the distribution system in the computer . Moreover, if there is an important customer in the switch section that includes the work section,
In the case where there is no section interconnection point switch due to the system configuration, or when the load is heavy and cannot be accommodated by the system equipment alone, the power outage area is more than one switch section unit. By the way, in actual operation, a power outage reduction method in which a power outage area is reduced by using a power outage area reduction device such as a switch and a cable other than the system equipment is used. in this case,
The computer cannot recognize any other than the current system configuration equipment or the system configuration equipment at the future time when the work is performed. Therefore, a method is considered in which the equipment with a reduced power outage range is treated as system equipment and deployed on a distribution system configuration at a future time. However, in practice, when multiple work subjects exist in parallel and the power outage range reduction equipment is used for each work subject, the power outage range reduction equipment must first be used for each work subject in order to deploy the distribution system configuration at the future time. Will be reflected in the distribution system configuration, then the changes in the system due to the work will be reflected in the distribution system configuration, and further, the equipment with reduced power outage range will be removed from the distribution system configuration,
Since it takes about three times as long as the case where the equipment for reducing the power failure range is not used, it is not practical at all. For this reason, there was a problem that the application of the work power failure operation device was only the power failure work other than the power failure construction method of the equipment for reducing the power failure range. The present invention has been made in order to solve the above-described problems, and in accordance with actual operation, a system configuration at a future point in time different from the current point in time without changing a power outage range reduced equipment system due to a system change due to the work. The power that can be reflected in the state and that can specify a power failure section in a section shorter than one switch section unit in the reflected system configuration state at the future point in time and that can create a switch operation procedure in the system configuration state It is an object of the present invention to provide a system power failure operation device.

[0005]

In order to achieve the above object, the present invention relates to a power failure operation for stopping a part of a power system for construction or restoring after completion of the construction, and a current power failure operation. In order to reduce the range of the power outage section for the work, in a work power outage operating device that creates operation procedures in advance for power system configurations at different future times and performs operations based on the operation procedures on the work day. Power outage range reduction device setting means for setting the type and installation location of the power outage range reduction device, and system change contents of some other work scheduled to be performed between the present time and the future work time and the power outage A pre-work system deployment unit that reflects the power outage range reduction device set by the range reduction device setting unit on the current power system configuration, and a power system that is reflected by the pre-work system deployment unit A power outage section setting means for setting a power outage section of the work, and a power outage section set by the power outage section setting means. A switch operation procedure creating means for creating a switching procedure for load accommodation for the load-side section group and a power failure procedure for power failure in the power failure section, and the work based on the power system configuration reflected by the pre-work system deployment means. In order to reflect the contents of the system change,
First, the power outage range reduction device set by the power outage range reduction device setting means is removed from the power system configuration, and then the change in the system due to the work is reflected on the power system configuration, and the power outage range is further reduced. The post-operation system deployment means for reflecting the power outage range reduction equipment set by the reduction equipment setting means on the power system configuration again and the switching procedure automatically created by the switch operation procedure automatic creation means, A switch operation procedure creating means for creating a power transmission procedure for restoring the system on the power system configuration reflected by the rear system deployment means and a switchback procedure.

[0006]

When setting the work information, the equipment information such as the equipment type and the installation location is set by the power outage range reduction equipment setting means and stored as the work information. And then
The current time system configuration is grasped from various information of the components of the distribution system and information such as the connection relation of the components, and the system change contents of all other work information from the current time to the relevant work point and the power outage range of the relevant work The reduced equipment is reflected on the current system configuration by the pre-operation system deployment means. Here, the reflected current system configuration becomes the pre-work system configuration, and is the system configuration at the time when the work is performed. In this pre-work system configuration, since the power failure range reduction equipment for the work and the contents of system change for other work are recognized in the computer, the power failure of the work in the section shorter than the switch section of the current system configuration equipment A section can be set in the work information by the power failure section setting means. The power failure section is reflected on the pre-work system configuration, and as a work time system configuration, in order to load accommodate a healthy section group on the load side from the power failure section on this configuration, an optimal switch of an optimal switch is determined by a predetermined algorithm. An optimum switching procedure is automatically created, and further, a switching operation procedure of a switch for power outage in a power outage section which is a target of the work is automatically created. Next, since the contents of the change in the system due to the work are reflected in the system configuration at the time of work, the power outage range reduced equipment due to the work is removed from the system configuration at the work time by the system expansion unit after the work so that the contents of the change are not affected. The work-time system configuration at this time is a system configuration in which the current system configuration reflects the system change content of all other work information from the current time to the work time. Reflect the contents. Next, in order to create a power transmission and switchback procedure to restore the power outage section after the power outage work,
After the work, the power outage range reduced equipment is reflected back to the work system configuration by the system deployment means. Here, the reflected system configuration becomes the post-operation system configuration. In the post-work system configuration,
Automatic switch-back procedure creation means with a predetermined algorithm automatically creates the optimal switch-back operation procedure for the switch to transmit power during the power failure section that is the target of the work. Then, in order to switch back to the pre-work system configuration, a switchback switching procedure is automatically created. As described above, in accordance with actual operation, the power outage range reduced equipment is reflected in the system configuration at a future time different from the current time without affecting the system change due to the work, and the reflected future time In the system configuration state, it is possible to designate a power failure section in span units shorter than one switch section unit, and to automatically create a switch operation procedure at that time by a predetermined algorithm.

[0007]

An embodiment will be described below with reference to the drawings. FIG.
1 is a configuration diagram of an embodiment of a work power failure operation device according to the present invention, and mainly shows functions of a remote monitoring control device master station 12 and a computer 13. Therefore, the power distribution system and the remote monitoring control device slave station shown in FIG. 3 are omitted. In FIG. 1, reference numeral 41 denotes data indicating the current state of the power distribution system, as described with reference to FIG.
(1) consists of online information such as the open / close state of the switch input via the remote monitoring control device master station 12. Reference numeral 50 denotes work subject management information that defines the operation start time and the operation end time of the switching operation and the switchback operation for each work subject, and performs the switching operation and the switchback operation of the subject at the timing when a work plan is made for each work subject. Enter the start time and operation end time. Reference numeral 48 denotes a unit for creating a future system configuration state before the operation of switching or switching back the work subject. Reference numeral 42 is a copy of the system status data 41 at the present time. Various data can be developed according to the work, and becomes data representing the system status at a future time. Therefore, the system status changes with the time of the development, and the data name is changed accordingly. Details are shown in FIG. 2, and the numbers in the figure are the same as the numbers (2), (11),... (24) of the data flow in FIG. Reference numeral 45 denotes data maintenance means for expanding the contents of the system change due to the work to the data 42 representing the distribution system at the future time point.

Reference numeral 44 denotes a switch operating procedure simulating and expanding means, which is extracted from the switch operating procedure data 46 for the switching operation or the switch operating procedure data 47 for the switchback operation, and simulates the procedure into data 42. . Reference numeral 43 denotes a switch operation procedure automatic creation means, which can be realized, for example, by the above-mentioned Japanese Patent Application No. 53-37777. Reference numeral 49 denotes an operation output unit, which extracts a switch operation procedure for switching or switching back the work subject from 46, 47 and sequentially outputs the operation signal to the remote monitoring control device master station 12. 54 is a power outage range reduction equipment setting means, in order to reduce the power outage section of the work,
This is for setting the installation location and type of the power failure section reduced equipment, and sets the data in the power failure section reduced equipment information 55 for each work subject management information. Reference numeral 52 denotes a pre-operation system expansion unit that expands the power outage range setting device information 55 into the data 42 representing the future power distribution system configuration, and further includes a power outage section set in the power outage section setting unit 51. The development is reflected in 42. As described above, the power failure section setting means 51 performs the setting of the power failure section on the data 42 reflecting the power failure section reduction device, and sets the work title. 53 is a post-work system deployment means for deploying the system configuration after the work is completed on 42, and in order to develop the contents of the system change due to the work,
Before and after the development, the power outage section reduction equipment information is removed based on the data 42 and re-installed.

Next, the operation will be described with reference to FIGS. In FIG. 2, the flow of the means is shown in one column on the left side, and corresponding data transitions are shown on the right side. First, the online information such as the switching state of the switch at the current time is always taken into the current distribution system configuration data 41 via the remote monitoring control device master station 12 ((1)). The setting of the work subject management information 50 is performed by inputting the operation start time and the operation end time of the switching operation and the switchback operation. It is set in the reduction device information 55 ((2)). The means 48 for creating the future system configuration state fetches the contents of the work subject management information 50 ((3)), divides the work subject into three operations, ie, a switching operation, an operation, and a switchback operation, and arranges each of them in chronological order. Frog. continue,
The data 41 indicating the current system configuration state is copied to the data 42 representing the distribution system configuration at a future time as the current system configuration state ((4)). After that, in order to create a pre-work system configuration state immediately before the start of the switching operation of the work subject, the operation procedure of the deployment target operation using the switch operation procedure simulation deployment means 44 for the work in chronological order is performed. A simulated deployment is performed ((5)), and the system change content of the deployment target work is developed using the data maintenance means 45 ((6)).
The switch operating procedure simulation deploying means 44 is a switch operating procedure data for switching the switch operating procedure of the deployment target operation.
It is extracted from the switch operation procedure data 47 for the switchback operation or 46 ((7), (8)), and the procedure is simulated and developed to the data 42 representing the future power distribution configuration ((9)). The data maintenance means 45 develops the work content to be developed into the data 42 ((10)). The pre-operation system deployment means 52 deploys the power outage range reduced equipment in the system configuration state in which the various developments described above are performed ((11)).
55, the information of the work subject is taken out, and the power outage range reduction equipment of the work subject is reflected in the above-mentioned system configuration state ((1
2)). The current system configuration state in which the power outage range reduced equipment is reflected is the pre-operation system configuration state.

Next, in order to set a power outage section for the work, the pre-work system configuration state is taken into the power outage section setting means 51 ((13)), and the power outage section is set including the power outage range reduction equipment. The set power outage section information is the work subject management information
Stored in 50 ((14)). Subsequently, in order to reflect the power outage section information in the pre-work system configuration state, the pre-work system
Extracts the blackout section information from 50 ((15)). Then, the power failure section information is developed and reflected in the pre-work system configuration state ((16)), and the pre-work system configuration state becomes the work time system configuration. Then, referring to the work time system configuration state 42, a switch operation procedure for the operation switching operation is automatically created and stored in the switch operation procedure data 46 ((1
8)). The switch operation procedure for the switchback operation after the end of the work must reflect the change in the system of the work subject created by the data maintenance means 45 in the system configuration state before the start of the switchback operation. A power outage range reduction device is still set in the work distribution line after the operation is completed, and it may not be possible to develop the system change content as it is. Therefore, based on the system configuration state developed as described above, the post-work system deployment means 53
Then, the power outage range reduction device information is removed ((19)).

In such a state, the contents of the system change of the work subject are developed in the system configuration state ((2
0)). By the way, the switch operation procedure of the switchback operation after the work is completed. In this state, since the power outage range reduction equipment is not in the system configuration, the procedure cannot be created. So, again,
Deploy power outage reduction equipment on the system. In other words, after the operation, the power outage range reduction device information 55 is fetched by the system expansion means 53 ((21)) and expanded into the data 42 representing the system configuration ((22)). Therefore, the data 42 representing the distribution system configuration becomes the system configuration state after the work, and this is taken in by the switch operation procedure automatic creation means 43 to create a switchback operation procedure ((23)). The created switchback operation procedure is stored in the switch operation procedure data 47 ((24)). Further, on the work day, the operation output means 49 outputs a switch operation procedure for switching operation of the work subject to the switch operation procedure data 46.
The operation signal ((26)) is sequentially output to the remote monitoring control device master station 12 while referring to the information ((25)). Next, after all the operations of the work are completed, the work contents of the work subject are developed by the data maintenance means 45, and the system configuration state after the work is completed is created in the data 42 representing the distribution system configuration, and the contents of 42 are created. After shifting to the current distribution system configuration 41 ((27)) and changing the system configuration state recognized by the computer 13 to the state after the end of the work, the operation output means 49 switches the switch for the switchback operation of the work subject. Take out the operating procedure from 47, refer to it ((28)), and input the operating signal ((2
9)) is sequentially output to the remote monitoring control device master station 12. According to this embodiment, the power outage range reduced equipment is reflected in the current system configuration state and the future system configuration state different from the current time without affecting the system change due to the work according to the actual operation. Then, in the system configuration state at the future time reflected, the power failure section is specified in span units shorter than one switch section unit, and the switch operation procedure is automatically created with a predetermined algorithm in each system configuration state. It is possible. In the above embodiment, the distribution system has been described as an example of the power system. However, this is for convenience of description and may be applied to a general power system including a higher-level transmission system.

[0012]

As described above, according to the present invention, in a power outage operation device for a power system, a power outage range reduction equipment can be changed in accordance with actual operation without affecting a system change due to the operation. In the future, which is different from the current time, reflect the system configuration state at the future time, specify the blackout section in span units shorter than one switch section section in the reflected system configuration state at the future time, and open and close in each system configuration state Power supply range reduction equipment to reduce power outage areas, and the use of power outage reduction methods to reduce power outage areas. It becomes possible.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an embodiment of a work power failure operation device according to the present invention.

FIG. 2 is a view showing a flow of means for effecting the operation of the embodiment and a transition of data representing a distribution system configuration at a future time.

FIG. 3 is a diagram illustrating a distribution system as a part of a power system and a future work power failure operation device.

[Explanation of symbols]

 11 Slave station 12 Remote monitoring and control unit master station 13 Computer 41 Current distribution system configuration data 42 Data representing future distribution system configuration 43 Automatic switch operation procedure creation means 44 Switch operation procedure simulation deployment means 45 Data maintenance means 46, 47 Switch operation procedure data 48 Means for creating future system configuration status 49 Operation output means 50 Work subject management information 51 Power failure section setting means 52 System deployment before work 53 System development after work 54 Power failure range reduction equipment setting Measure 55 Power outage range reduction equipment information

──────────────────────────────────────────────────続 き Continued on the front page (73) Patent holder 000006013 Mitsubishi Electric Corporation 2-3-2 Marunouchi, Chiyoda-ku, Tokyo (72) Inventor Akihiro Miura 3-2-2 Nakanoshima, Kita-ku, Osaka-shi, Osaka Kansai Inside Electric Power Company (72) Inventor Tomoaki Nobukata 3-2-2 Nakanoshima, Kita-ku, Osaka City, Osaka Prefecture Inside Kansai Electric Power Company (72) Inventor Toshio Watanabe 8-6-26 Motoyama Minami-cho, Higashinada-ku, Kobe, Hyogo Prefecture No. Toshiba Corporation Kansai System Center (72) Inventor Shiro Okada 4-21 Yoshiwara-cho, Nishi-ku, Nagoya-shi, Aichi Prefecture Toshiba Corporation Chubu System Center (72) Inventor Hitoshi Kanawa 1 Toshiba-cho, Fuchu-shi, Tokyo Stock (72) Inventor Hiroshi Inoue 5-2-1 Omikacho, Hitachi City, Ibaraki Prefecture Hitachi, Ltd. Inside the Mika Plant (72) Inventor Shigeru Sagae 1-1-1, Tanabe Nitta, Kawasaki-ku, Kawasaki, Kanagawa Prefecture Inside Fuji Electric Co., Ltd. (72) Inventor Naoki Masuda 1-1-1, Wadazakicho, Hyogo-ku, Kobe-shi, Hyogo No. Mitsubishi Electric Corporation Control Factory (56) References JP-A-63-206119 (JP, A) JP-A-54-129445 (JP, A) JP-A-5-212721 (JP, A) (58) Survey Field (Int.Cl. ⁷ , DB name) H02J 3/00-5/00 H02J 13/00-13/00 311

Claims (1)

(57) [Claims] 1. An operation procedure for a power system configuration at a future time different from the current time in advance regarding a power outage operation for stopping part of the power system for construction or restoring after the completion of the construction. In a power failure operation device that creates and executes an operation based on the operation procedure on the work day, a power failure that sets the type and installation location of a power failure range reduction device for reducing the range of the power failure section for the work Range reduction equipment setting means, the system change contents of some other work scheduled to be performed between the current time and the current work point in time and the power failure range reduction equipment set by the power failure range reduction equipment setting means. A pre-work system deployment means reflected on the current power system configuration, and a power outage section for setting a power outage section of the work in the power system configuration reflected by the pre-work system deployment means A setting means, and a switching procedure in which, for the power failure section set by the power failure section setting means, the load is accommodated from the power failure section to the load side section group on the power system configuration reflected by the pre-operation system deployment means. And a switch operation procedure creating means for creating a power outage procedure for power outage in the power outage section, and the power outage range to reflect the contents of the system change by the work on the power system configuration reflected by the pre-work system deployment means. The power outage range reduction equipment set by the reduction equipment setting means is removed from the power system configuration, and then the contents of the system change due to the work are reflected on the power system configuration, and further the power outage range reduction equipment setting means In the post-operation system deployment means to reflect the power outage range reduction equipment set in the power system configuration again, and the switching procedure automatically created by the switch operation procedure automatic creation means And a switch operation procedure creation means for creating a power transmission procedure and a switchback procedure for restoring the power system configuration on the power system configuration reflected by the post-work system deployment means. .