CN111913976A - A secondary operation closed loop operation and maintenance management system - Google Patents

Abstract

The invention discloses a secondary operation blocking circuit operation and maintenance management system, comprising: a secondary operation blocking database, a diagnosis module and an update modification module; the secondary operation blocking database includes an operation blocking standard database and a local equipment operation blocking database ; The operation blocking standard database is used to store the standard blocking loop logic; the local equipment operation blocking database is used to store the equipment information of a plurality of preset equipment; the equipment information includes the operation blocking loop logic; It is used for judging whether the operation blocking loop logic of the equipment is consistent with the standard blocking loop logic; the updating and modifying module is used for modifying and updating the operation blocking database of the local equipment. It solves the technical problems that the secondary operation loop is complicated and difficult to operate and maintain, and the operation and maintenance efficiency is low.

Description

A secondary operation closed loop operation and maintenance management system

technical field

The invention relates to the technical field of operation and maintenance management, in particular to a secondary operation and closed loop operation and maintenance management system.

Background technique

The power grid system consists of a large number of substations with different voltage levels and transmission lines between the substations. The substation is the core node of energy aggregation, transmission, distribution and voltage transformation in the power grid system. According to the different voltage levels, substations can be divided into 1000kV, 750kV, 500kV, 330kV, 220kV, 110kV, 35kV, 10kV and other substations with different voltage levels. According to the different voltage levels connected to the substation, the general substation contains three voltage levels, and some substations contain two voltage levels.

No matter which voltage level is mentioned above, the equipment operation in the substation must strictly implement the relevant operation lockout regulations. If the equipment is operated incorrectly, it will cause serious consequences such as casualties, equipment damage, explosion, fire and so on. Therefore, the substations are designed with operation locking systems. For the key link in the prevention and control of operation locking, the operation locking between different modules of the equipment and the operation locking between different equipment intervals are mainly realized by electrical wiring type locking.

Electrical wiring lockout mainly refers to the connection of secondary cables to convert the position state of the associated electrical equipment in the bay into the lockout of the electrical equipment operation process. According to the operation blocking logic of the equipment to be operated, the secondary control cable is used to connect the position state of the equipment to be operated related to other equipment into the control loop of the equipment to be operated, so as to realize the operation blocking logic of the equipment. The electrical wiring type locking is safe and reliable, and is widely used in substations of various voltage levels. Therefore, in the secondary circuit design of the substation, there are a large number of equipment operation locking circuits. The operation of most equipment needs to be associated with the position status information of other related equipment as the operation blocking condition of the equipment. Therefore, the secondary operation blocking circuit of the substation is complicated, and it is difficult and challenging to manage the secondary circuit operation.

At present, the operation and maintenance management of the secondary operation blocking circuit of substation equipment mainly adopts the method of consulting the design drawings. For circuits that are incompletely preserved or have undergone many transformations, the drawings can no longer accurately represent the secondary operation blocking circuit. Much depends on the experience of secondary operation and maintenance technicians and the use of multimeters and other on-site search loops. The workload of checking drawings and finding loops on site is heavy, time-consuming, and inefficient. It also relies heavily on the personal level of operation and maintenance technicians, and there are certain technical risks.

SUMMARY OF THE INVENTION

The invention provides an operation and maintenance management system for a secondary operation closed loop, which is used to solve the technical problems that the secondary operation loop is complicated and difficult to operate and maintain, and the operation and maintenance efficiency is low.

A secondary operation locking loop operation and maintenance management system provided by the present invention includes:

The secondary operation locks the database, the diagnosis module and the update modification module;

The secondary operation lockout database includes an operation lockout standard database and a local equipment operation lockout database;

The operation blocking standard database is used for storing standard blocking loop logic;

The local equipment operation blocking database is used to store equipment information of a plurality of preset equipment; the equipment information includes operation blocking loop logic;

The diagnosis module is used for judging whether the operation blocking loop logic of the device is consistent with the standard blocking loop logic;

The updating and modifying module is used for modifying and updating the device operation lockout database of the local station.

Optionally, the operation blocking standard database includes a bus interval operation blocking standard library, a segmented interval operation blocking standard library, a bus tie interval operation blocking standard library, a main variable interval operation blocking standard library and a line interval operation blocking standard library.

Optionally, the device information further includes: basic information of the device, where the basic information includes device name, dispatch number, rated voltage, rated current, electrical wiring diagram topology location, and device usage.

Optionally, the device information further includes: a schematic diagram of the secondary operation blocking circuit, a wiring diagram of the secondary operation blocking circuit, and a detailed wiring diagram of the terminal blocks on both sides of the cable.

Optionally, the wiring diagram of the secondary operation blocking circuit includes cable number, cable core number, cable type, cable core usage and cable laying position information.

Optionally, the device includes an isolating switch and a grounding switch.

Optionally, it further includes: a network security firewall; the network security firewall is configured to perform network security detection when accessing the local device operation blocking database.

Optionally, the diagnosis module is further configured to issue an alarm signal when the operation blocking loop logic of the device is inconsistent with the standard blocking loop logic.

It can be seen from the above technical solutions that the present invention has the following advantages: the secondary operation blocking circuit operation and maintenance management system of the present invention includes an operation blocking standard database and a local equipment operation blocking database, and the local equipment operation blocking database is stored in the local equipment operation blocking database through the diagnosis module. The operation blocking loop logic of the device is compared with the standard blocking loop logic, so that it is possible to find out whether there is a defect in the operating blocking loop logic of the equipment. The invention also establishes an update and modification module, which can update the transformation caused by the subsequent expansion and transformation of the substation in time, and always keep the current state of the system as the latest state, which simplifies the management of drawings and loop investigation, and facilitates other staff in the follow-up. The mastery of the secondary operation blocking loop improves the efficiency and safety of operation and maintenance, and reduces the hidden danger of erroneous modification of the secondary loop.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

1 is a structural diagram of a secondary operation locking loop operation and maintenance management system provided by an embodiment of the present invention;

FIG. 2 is a structural diagram of a secondary operation closed loop operation and maintenance management system provided by another embodiment of the present invention;

FIG. 3 is a schematic diagram of a secure access process according to an embodiment of the present invention.

Detailed ways

The embodiment of the present invention provides a secondary operation closed loop operation and maintenance management system, which is used to solve the technical problems that the secondary operation loop is complicated and difficult to operate and maintain, and the operation and maintenance efficiency is low.

In order to make the purpose, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to FIG. 1 . FIG. 1 is a structural diagram of a secondary operation locking loop operation and maintenance management system according to an embodiment of the present invention.

A secondary operation locking loop operation and maintenance management system provided by the present invention includes:

The secondary operation locks the database 11, the diagnosis module 12 and the update modification module 13;

The secondary operation lockout database 11 includes an operation lockout standard database 111 and a local equipment operation lockout database 112;

Operating the blocking standard database 111 for storing standard blocking loop logic;

The equipment operation blocking database 112 of the local station is used to store the equipment information of a plurality of preset equipment; the equipment information includes the operation blocking loop logic;

The diagnosis module 12 is used to judge whether the operation blocking loop logic of the equipment is consistent with the standard blocking loop logic;

The updating and modifying module 13 is used for modifying and updating the operation block database 112 of the local station.

The secondary operation blocking circuit operation and maintenance management system of the present invention includes an operation blocking standard database 111 and a local equipment operation blocking database 112. The operation blocking circuit logic in the local equipment operation blocking database 112 and the standard blocking circuit logic are analyzed by the diagnosis module 12. By comparison, it is possible to find out whether there is a defect in the logic of the device operation blocking loop. The present invention also establishes an update and modification module 13, which can timely update the transformation caused by the subsequent expansion and reconstruction of the substation, and always keep the current state of the system as the latest state, which simplifies the management of drawings and loop investigation, and facilitates other subsequent work. The personnel's grasp of the secondary operation blocking circuit improves the operation and maintenance efficiency and safety, and reduces the hidden danger of incorrect changes in the secondary circuit.

Please refer to FIG. 2. FIG. 2 is a structural diagram of a secondary operation locking loop operation and maintenance management system according to another embodiment of the present invention.

As shown in FIG. 2 , the equipment that needs to be operated and locked in the substation mainly includes two types of isolation switch 15 and grounding switch 16 . In one example, the present invention can distinguish equipment types such as line interval, main transformer interval, bus tie interval, subsection interval, bus bar interval, etc., and establish the operation blocking data of the isolation switch 15 and the grounding switch 16 corresponding to each interval of the whole station, Stored in the secondary operation blocking database 11 . By establishing the equipment secondary operation blocking database 11 of the whole station, and establishing complete equipment information, blocking logic, schematic diagram, wiring diagram, terminal box diagram and other information, the operation and maintenance management of the equipment secondary operation blocking circuit can be facilitated.

Among them, the operation blocking standard database 111 is used to store the standard blocking circuit logic. It is an equipment standard blocking database established according to the requirements of national, industrial and enterprise standards and specifications for operation blocking. The database corresponds to line interval, main transformer interval, bus For different types such as inter-connection interval, subsection interval, busbar interval, etc., according to the difference between the isolating switch and the grounding switch, a standard operation blocking database can be established respectively, including the busbar interval operation blocking standard library 1111, the subsection interval operation blocking standard library 1112, the busbar interval operation blocking standard library 1112, Interconnection interval operation blocking standard library 1113 , main variable interval operation blocking standard library 1114 , and line interval operation blocking standard library 1115 . The operational lockout criteria database 111 can be used to compare against actual substation operational lockout logic. When the diagnosis module 12 diagnoses that there is an operation blocking defect in the secondary operation blocking circuit logic design of the equipment of the substation, an alarm prompt is issued.

The equipment operation lock database 112 of the local station stores the equipment information of a plurality of preset equipment, which is embodied in that a data sub-item is established corresponding to each equipment, and the data mainly includes: 1. The basic information 1121 of the equipment, such as equipment name, scheduling number , rated voltage, rated current, topological location in electrical wiring diagram, description of equipment usage, etc. 2. The operation blocking loop logic 1122 of the device, that is, the state conditions and logical relationship of the associated device that need to be satisfied when the device operates. 3. The schematic diagram 1123 of the secondary operation blocking circuit of the equipment. 4. The wiring diagram 1124 of the blocking circuit for realizing the secondary operation of the equipment, including the opening and closing position status information of each adjacent equipment (circuit breaker, isolating switch, earthing switch). Cable number, cable core number, cable type, usage of other cores in the same cable, and cable laying position information, etc. 5. Detail drawing of terminal block wiring on both sides of the cable 1125, etc.

In the embodiment of the present invention, the equipment two-dimensional code information of each device can be generated; the operation and maintenance personnel can access the equipment operation lock database of the site by scanning the equipment two-dimensional code information, and obtain the equipment operation block database of the equipment from the equipment operation block database of the site. Device Information.

In this embodiment of the present invention, any two-dimensional code editing and publishing tool can be used to generate the device two-dimensional code information of each electrical device, and the device two-dimensional code information guides the access entry of the device in the device operation lockout database 112 of the local station , through the two-dimensional code information, you can access the device operation lock database 112 of the site, and obtain the device information of the device from it.

In a specific implementation, the operation and maintenance personnel can scan the two-dimensional code information of the device by using a handheld tool such as a mobile phone and a tablet, and then access the data entry information of the device in the device operation lock database 112 of the local station. Under the device data item, it can display the basic information of the device 1121, the device operation blocking circuit logic 1122, the secondary operation blocking circuit schematic diagram 1123, the secondary operation blocking circuit wiring diagram 1124, the terminal block wiring diagram on both sides of the cable 1125 Wait. Users can click to access the corresponding entry information. When searching for a specific circuit, you can quickly find the starting point of the cable according to the cable number and laying position information on the wiring diagram 1124 of the secondary operation blocking circuit of the equipment.

Further, a two-dimensional code can be set on the sign of the cable, and the operation and maintenance personnel can scan the two-dimensional code on the cable through the handheld device to quickly browse the circuit information of each cable core of the cable, the number of the terminals connected on both sides and the adjacent ones. Wiring information for the terminals, and also browse the uses of the other cores of the cable.

It should be noted that, in addition to editing the two-dimensional codes of the equipment and cables through the two-dimensional code editing and publishing tool, those skilled in the art can also use any other coding rules to access the equipment operation blocking database 112 of the site, which is not specified in the present invention. limit.

In the embodiment of the present invention, the diagnosis module 12 is used to judge whether the operation blocking loop logic of the device is consistent with the standard blocking loop logic.

Specifically, the present invention establishes the intelligent diagnosis function of the operation blocking loop by setting the diagnosis module 12. Under the display items generated by scanning the two-dimensional code information of the equipment to be operated, an intelligent diagnosis button can be set, and the function is to lock the equipment from the operation. The standard blocking loop logic of the same interval and the same equipment in the standard database 111 is compared horizontally to find out whether the operation blocking loop logic of the equipment is defective. If some early-established substation equipment secondary operation blocking circuit is not considered perfect, there are some defects, through the intelligent diagnosis function, the existing defects can be automatically found, and a warning will be issued to remind the secondary inspection personnel to check the actual situation of the defects , to determine whether the circuit needs to be modified.

In this embodiment of the present invention, the updating and modifying module 13 is used to modify and update the device operation blocking database 112 of the local station.

Specifically, the secondary operation locking circuit operation and maintenance management system of the present invention is also provided with an update and modification module 13, so that after the newly built substation is put into operation, the equipment of this station can be operated according to the work content of the expansion and reconstruction project after the operation. The locking database 112 is updated, adding the information of the expanded equipment, repairing and renovating the circuit content, etc., so as to keep the database information able to reflect the latest status of the current substation.

In addition, in the embodiment of the present invention, a network security firewall may also be set; when the operation and maintenance personnel access the equipment operation blocking database 112 of the local station, network security detection may be performed.

As shown in Figure 3, the network security firewall can be set between the two-dimensional code access entrance and the secondary operation blocking database. By configuring the network security policy, the data security management requirements of the power system can be met.

The secondary operation blocking loop operation and maintenance management system of the present invention includes an operating blocking standard database and a local equipment operating blocking database. It is possible to find out whether there is a defect in the logic of the blocking loop of the device operation. The invention also establishes an update and modification module, which can timely update the transformation caused by the subsequent expansion and reconstruction of the substation, and always keep the current state of the system as the latest state, which simplifies the management of drawings and loop investigation, and facilitates other staff in the follow-up. The mastery of the secondary operation blocking loop improves the efficiency and safety of operation and maintenance, and reduces the hidden danger of erroneous modification of the secondary loop.

In the several embodiments provided in this application, it should be understood that the disclosed system may be implemented in other ways. The shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: The technical solutions described in the embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions in the embodiments of the present invention.

Claims (8)

1. A secondary operation closed loop operation and maintenance management system, characterized in that, comprising: The secondary operation locks the database, the diagnosis module and the update modification module; The secondary operation lockout database includes an operation lockout standard database and a local equipment operation lockout database; The operation blocking standard database is used for storing standard blocking loop logic; The local equipment operation blocking database is used to store equipment information of a plurality of preset equipment; the equipment information includes operation blocking loop logic; The diagnosis module is used for judging whether the operation blocking loop logic of the device is consistent with the standard blocking loop logic; The updating and modifying module is used for modifying and updating the device operation lockout database of the local station. 2 . The system according to claim 1 , wherein the operation blocking standard database comprises a busbar interval operation blocking standard library, a segmented interval operation blocking standard library, a bus tie interval operation blocking standard library, and a main variable interval operation blocking standard library 2 . Standard Library and Line Interval Operations Block Standard Library. 3. The system according to claim 1, wherein the device information further comprises: basic information of the device, the basic information comprising device name, scheduling number, rated voltage, rated current, and electrical wiring diagram topology Location, equipment usage. 4 . The system according to claim 3 , wherein the device information further comprises: a schematic diagram of a secondary operation blocking circuit, a wiring diagram of the secondary operation blocking circuit, and a detailed wiring diagram of the terminal blocks on both sides of the cable. 5 . 5 . The system according to claim 4 , wherein the wiring diagram of the secondary operation blocking circuit includes cable number, cable core number, cable type, cable core usage, and cable laying position information. 6 . 6. The system of claim 1, wherein the device comprises an isolation switch and a grounding switch. 7 . The system according to claim 1 , further comprising: a network security firewall; the network security firewall is configured to perform network security detection when accessing the local device operation blocking database. 8 . 8 . The system according to claim 1 , wherein the diagnostic module is further configured to issue an alarm signal when the operation blocking loop logic of the device is inconsistent with the standard blocking loop logic. 9 .

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