Monitoring system for improving self-healing reliable operation based on distribution network OCS system

Abstract

The invention relates to the technical field of distribution network automation systems, in particular to a monitoring system for improving self-healing reliable operation based on a distribution network OCS system, and the system comprises a fault feeder module which is used for displaying fault information; the alarm display module is used for displaying related alarm information of the selected fault feeder line; and the auxiliary decision-making module is used for providing decision-making support information and assisting operation and maintenance personnel in effectively making decisions and processing faults. The beneficial effects of the invention are that the visual display of the fault feeder line module, the simplification and priority differentiation of alarm information, and the detailed fault processing support of the auxiliary decision module are realized, thereby remarkably improving the accuracy of fault positioning, the processing priority of key faults, the success rate of fault self-healing, and the overall efficiency of fault processing. The power failure time is effectively reduced, and the reliability of a power grid and the working efficiency of operation and maintenance personnel are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution network automation systems, and in particular to a monitoring system for improving self-healing and reliable operation based on a distribution network OCS system. Background Art

[0002] With the expansion of distribution network automation systems, the traditional centralized display method has resulted in a large amount of alarm information and is not intuitive, making it difficult to quickly locate the fault point. There is a lack of priority distinction between alarm signals of important feeders and ordinary feeders, as well as insufficient fault self-healing decision support. Especially in the thunderstorm season, these problems have seriously affected the dispatching and monitoring personnel's judgment and handling efficiency of faults. Summary of the invention

[0003] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The present invention provides the following technical solutions: A monitoring system for improving self-healing reliable operation based on a distribution network OCS system, comprising a fault feeder module for displaying fault information;

[0006] An alarm display module is used to display relevant alarm information of the selected fault feeder;

[0007] The decision support module is used to provide decision support information to assist operation and maintenance personnel in making effective decisions and handling faults.

[0008] As a preferred solution of the monitoring system for improving self-healing reliable operation based on the distribution network OCS system of the present invention, it also includes a ring network diagram display module for displaying the ring network diagram of the selected fault feeder.

[0009] As a preferred solution of the monitoring system for improving self-healing reliable operation based on the distribution network OCS system of the present invention, the fault feeder module displays the fault information in the order of the time when the feeder first fails.

[0010] As a preferred solution of the monitoring system for improving self-healing reliable operation based on the distribution network OCS system of the present invention, the fault feeder module includes an important line identification unit for displaying the fault information of important lines in a highlighted manner.

[0011] As a preferred solution of the monitoring system for improving the self-healing reliable operation based on the distribution network OCS system of the present invention, the decision support information provided includes but is not limited to listing the fault area information, whether the supply can be transferred, and whether the self-healing action is successful.

[0012] As a preferred solution of the monitoring system for improving self-healing reliable operation based on the distribution network OCS system of the present invention, the ring network diagram display module generates a ring network diagram using parameters in the XML model file of the distribution network primary wiring diagram.

[0013] As a preferred solution of the monitoring system for improving self-healing reliable operation based on the distribution network OCS system of the present invention, the ring network diagram display module searches and draws the automation switch from the station to the downstream according to the unique code of the device and the unique codes of the devices at both ends of the connected device.

[0014] As a preferred solution of the monitoring system for improving self-healing reliable operation based on the distribution network OCS system of the present invention, the ring network diagram display module highlights the fault section range according to different rules of differential type lines and voltage type lines.

[0015] As a preferred solution of the monitoring system for improving self-healing reliable operation based on the distribution network OCS system of the present invention, the system also includes an interface interaction optimization module for adding a scroll bar and a configuration interface in the form of a pop-up window.

[0016] As a preferred solution of the monitoring system for improving self-healing reliable operation based on the distribution network OCS system of the present invention, it also includes a data source module for updating fault information and status from the sub-feeder container in real time.

[0017] Beneficial effects of the present invention: The present invention realizes the intuitive display of the fault feeder module, the simplification and priority differentiation of the alarm information, and the detailed fault handling support of the auxiliary decision-making module, thereby significantly improving the accuracy of fault location, the handling priority of key faults, the success rate of fault self-healing and the overall efficiency of fault handling, effectively reducing the power outage time and improving the reliability of the power grid and the work efficiency of operation and maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0019] Figure 1 An intelligent monitoring diagram for the monitoring system that improves self-healing and reliable operation based on the distribution network OCS system.

[0020] Figure 2 To simplify the previous one-line diagram examples.

[0021] Figure 3 This is an example of a simplified ring network diagram.

[0022] Figure 4 An example diagram is shown with fault boundaries highlighted. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0026] Example 1

[0027] Reference Figure 1 to Figure 4 , which is the first embodiment of the present invention, and which provides a monitoring system for improving self-healing reliable operation based on a distribution network OCS system, comprising a fault feeder module for displaying fault information;

[0028] Furthermore, the fault feeder module displays the fault information in a time sequence in which the fault first occurred on the feeder.

[0029] Furthermore, the fault feeder module includes an important line identification unit, which is used to display the fault information of important lines in a highlighted manner, wherein the important line identification unit reminds the dispatcher that there are important users on the line and to deal with them in advance.

[0030] It should be noted that the fault signals of switches in the line station and the fault signals of distribution terminals on the line are combined and displayed by line to meet the logical requirements of dispatchers to handle faults by line.

[0031] Furthermore, it also includes a data source module for updating fault information and status from the sub-feeder container in real time.

[0032] It should be noted that the fault information of the fault feeder module comes from the data source module.

[0033] The alarm display module is used to display the relevant alarm information of the selected fault feeder.

[0034] It should be noted that when any feeder in the fault feeder module is selected, the alarm display module only displays all alarm information of the feeder, and further alarm text only displays digital or analog descriptions to simplify the information content for quick browsing.

[0035] It should be further explained that when the fault signal is confirmed, the fault signal automatically drops from the alarm display module and is fed back to the fault feeder module. If all signals are confirmed, the corresponding feeder drops from the fault feeder module synchronously.

[0036] The decision support module is used to provide decision support information to assist operation and maintenance personnel in making effective decisions and handling faults.

[0037] Furthermore, the decision support information provided includes but is not limited to listing the fault area information, whether the supply can be transferred, and whether the self-healing action is successful, wherein the self-healing action includes but is not limited to automatically isolating the fault area and switching to the backup line.

[0038] It should be noted that when the feeder is put into self-healing function, the auxiliary decision module will list the fault area, whether it can be transferred, and whether the self-healing action is successful. Furthermore, the auxiliary decision module will clearly indicate the specific area where the fault occurred, which is crucial for quickly locating the problem and formulating countermeasures. Whether it can be transferred means that the system will evaluate the current grid configuration and fault conditions to determine whether the affected users can be transferred to other normal feeders to reduce the impact of power outages. Furthermore, the auxiliary decision module will display whether the self-healing action is successfully executed. Furthermore, when self-healing fails, it will provide specific reasons such as self-healing lockout, self-healing outlet pressure plate exit, or self-healing remote control failure.

[0039] It should be further explained that when the feeder has not been put into self-healing function, the auxiliary decision-making module will clearly remind the operation and maintenance personnel that the feeder is not configured with self-healing function. At the same time, the system will try to determine the fault area and provide fault location information to the operation and maintenance personnel. Furthermore, the system will evaluate whether it is possible to implement a power transfer strategy, that is, to supply power to the affected area through other lines or equipment to reduce the power outage time.

[0040] Furthermore, it also includes a ring network diagram display module for displaying the ring network diagram of the selected fault feeder.

[0041] Furthermore, the ring network diagram display module generates a ring network diagram using parameters in the XML model file of the distribution network primary wiring diagram.

[0042] Furthermore, the ring network diagram display module searches and draws the automation switch from the station to the downstream according to the unique code of the device and the unique codes of the devices at both ends of the connected device.

[0043] It should be noted that when a switch device is searched, it is determined whether the device has an IP address. If it has an IP address, it is determined to be an automatic switch and the device is drawn into the ring network diagram. If the device is not a switch or has no IP address, the device is removed until it is drawn to the power supply point on the other end.

[0044] Furthermore, the ring network diagram display module highlights the fault section range according to different rules for differential type lines and voltage type lines.

[0045] It should be noted that when a faulty feeder is selected, the ring network diagram of the feeder will be displayed, the faulty section in the ring network diagram will be highlighted, the diagram elements will be associated with parameters and data refresh will be supported.

[0046] It should be further explained that the rules for highlighting the fault section range are as follows:

[0047] Differential line: Search from the power point to the downstream. The device farthest from the power point that sends the protection action signal is the upstream boundary of the fault [marked in blue]. The next switch is the automatic switch, which is the downstream boundary of the fault [marked in blue].

[0048] Voltage type line: If the reclosing is successful in the station under fault conditions, the first switch position with a locking signal is searched downstream from the station as the upstream boundary of the fault [blue mark]. The next switch position with a locking signal is searched downstream until it is connected to the downstream boundary of the fault [blue mark]. If the reclosing is unsuccessful, the switch in the station is the upstream boundary of the fault [blue mark]. The next switch position with a locking signal is searched downstream until it is connected to the downstream boundary of the fault [blue mark].

[0049] Furthermore, the system also includes an interface interaction optimization module for adding scroll bars and configuration interfaces in the form of pop-up windows.

[0050] In summary, the beneficial effects of the monitoring system for improving self-healing reliable operation based on the distribution network OCS system of the present invention are to realize the intuitive display of the fault feeder module, the simplification and priority differentiation of alarm information, and the detailed fault handling support of the auxiliary decision-making module, thereby significantly improving the accuracy of fault location, the handling priority of key faults, the success rate of fault self-healing and the overall efficiency of fault handling, effectively reducing the power outage time and improving the reliability of the power grid and the work efficiency of operation and maintenance personnel.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A monitoring system for improving self-healing reliable operation based on a distribution network OCS system, characterized by: include, Fault feeder module, used to display fault information; An alarm display module is used to display relevant alarm information of the selected fault feeder; The decision support module is used to provide decision support information to assist operation and maintenance personnel in making effective decisions and handling faults.

2. The monitoring system for improving self-healing reliable operation based on the distribution network OCS system according to claim 1, characterized in that: It also includes a ring network diagram display module for displaying the ring network diagram of the selected fault feeder.

3. The monitoring system for improving self-healing reliable operation based on the distribution network OCS system as claimed in claim 2, characterized in that: The fault feeder module displays the fault information in order of the time when the feeder first fails.

4. The monitoring system for improving self-healing reliable operation based on the distribution network OCS system as claimed in claim 3, characterized in that: The fault feeder module includes an important line identification unit, which is used to display the fault information of important lines in a highlighted manner.

5. The monitoring system for improving self-healing reliable operation based on the distribution network OCS system as claimed in claim 4, characterized in that: The provision of decision support information includes, but is not limited to, listing fault area information, whether the supply can be transferred, and whether the self-healing action is successful.

6. The monitoring system for improving self-healing reliable operation based on the distribution network OCS system as claimed in claim 5, characterized in that: The ring network diagram display module generates a ring network diagram using the parameters in the XML model file of the distribution network primary wiring diagram.

7. The monitoring system for improving self-healing reliable operation based on the distribution network OCS system as claimed in claim 6, characterized in that: The ring network diagram display module searches and draws the automation switch from the station to the downstream according to the unique code of the device and the unique codes of the devices at both ends of the connected device.

8. The monitoring system for improving self-healing reliable operation based on the distribution network OCS system as claimed in claim 7, characterized in that: The ring network diagram display module highlights the fault section range according to different rules for differential type lines and voltage type lines.

9. The monitoring system for improving self-healing reliable operation based on the distribution network OCS system as claimed in claim 8, characterized in that: The system also includes an interface interaction optimization module for adding a scroll bar and a configuration interface in the form of a pop-up window.

10. The monitoring system for improving self-healing reliable operation based on the distribution network OCS system according to any one of claims 1 to 9, characterized in that: A data source module is also included for updating fault information and status from the sub-feeder container in real time.

Images