Comprehensive auxiliary monitoring system for transformer substation

Abstract

The utility model discloses a comprehensive auxiliary monitoring system for a transformer station. The comprehensive auxiliary monitoring system comprises a monitoring host, a comprehensive server, a communication network module and a safety isolation device, the monitoring host is in communication connection with the comprehensive server and the sub-monitoring system through the communication network module, and the comprehensive server and the sub-monitoring system are also in communication connection through the communication network module; a security isolation device is arranged between the monitoring host and the comprehensive server and the sub-monitoring system; the comprehensive server and the intelligent inspection subsystem perform information interaction with the operation and maintenance master station through the gateway; the monitoring host performs information interaction with the power regulation and control center through the gateway; according to the utility model, automatic acquisition and centralized monitoring of auxiliary control data such as on-line monitoring, fire protection, security and protection, moving ring, lock control and the like of a station end are realized, and the problem of information isolated island between original subsystems and in management is solved.

Description

Technical Field

[0001] This utility model relates to the field of intelligent substation technology, and in particular to a comprehensive auxiliary monitoring system for substations. Background Technology

[0002] With social development and technological advancements, people are paying increasing attention to electricity and demanding greater stability from power systems. Power system reforms are deepening and evolving, saving labor costs while improving power supply stability and quality. Smart substations, unmanned substations, and centralized substation operation monitoring are rapidly becoming widespread. Substation auxiliary monitoring systems, as a crucial technical means for intelligent and safe power grid operation, provide vital guarantees for the safe and stable operation of the power grid. As an indispensable component for realizing the advanced and superior features of smart substations, the importance of intelligent auxiliary control systems for substations is becoming increasingly apparent.

[0003] Ten years ago, my country began to gradually promote the unmanned transformation and construction of substations. In the early stage, only basic functions such as telemetry, telesignaling, remote control, and remote adjustment were realized, and some functions such as infrared monitoring and gas monitoring were realized. However, the functions were independent of each other, and the collected data needed to be sent to the back-end host separately, which caused data chaos and prevented the collected data from being well integrated and used, as well as the integration between functions. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a substation integrated auxiliary monitoring system that centralizes functions without affecting the working mode of the existing transformers, integrates and merges various monitoring functions in the substation, and solves the problems of data chaos caused by the independence of each function and the inability to integrate the functions well.

[0005] To solve the above-mentioned technical problems, the present invention provides a technical solution: a substation integrated auxiliary monitoring system, characterized in that it includes a monitoring host, an integrated server, a communication network module, and a security isolation device;

[0006] The monitoring host communicates with the integrated server and the sub-monitoring system through a communication network module, and the integrated server and the sub-monitoring system also communicate with each other through a communication network module. The sub-monitoring system includes a primary equipment online monitoring subsystem, a fire protection subsystem, a security defense subsystem, an environmental monitoring subsystem, an intelligent lock control subsystem, and an intelligent patrol subsystem.

[0007] A first security isolation device is provided between the monitoring host and the integrated server and the sub-monitoring system, and a second security isolation device is provided between the monitoring host and the integrated server and the intelligent patrol subsystem.

[0008] The integrated server and intelligent inspection subsystem interact with the operation and maintenance master station through a gateway; the monitoring host interacts with the power control center through a gateway.

[0009] Furthermore, the first safety isolation device is a forward isolation device, and the second safety isolation device is a forward and reverse isolation device.

[0010] Furthermore, the primary equipment online monitoring subsystem includes a transformer monitoring terminal, a switchgear monitoring terminal, and a digital meter monitoring terminal;

[0011] The transformer monitoring terminal includes an online monitoring unit for dissolved gas in oil, an online monitoring sensor for core / clamping grounding current, a digital remote transmission meter for leakage current, and a surge arrester for the neutral point complete set of equipment;

[0012] The switchgear monitoring terminal includes an online monitoring sensor for the contact temperature of high-current air-insulated switchgear.

[0013] Digital meter monitoring terminals: remote transmission meter for sulfur hexafluoride gas density, digital meter for surge arrester leakage current, digital oil temperature and level gauge for transformer, and remote transmission meter for insulating gas density of gas-filled switchgear.

[0014] Furthermore, the fire protection subsystem includes a fire information transmission and control unit;

[0015] The fire information transmission and control unit includes point-type fire detectors, linear beam smoke detectors, cable-type linear constant temperature fire detectors, fire water tank level transmitters, fire pipeline pressure transmitters, and fire power supply voltage transmitters.

[0016] Furthermore, the security and defense subsystem includes an audible and visual alarm, an infrared dual-technology detector, an infrared beam detector, an emergency alarm button, an access control doorbell, an electronic fence, and a burglar alarm controller.

[0017] Furthermore, the dynamic environment subsystem includes a dynamic environment monitoring terminal and connected to the dynamic environment monitoring terminal a water immersion detector, a water leakage detector, a fan controller, a water pump controller, a dehumidifier controller, a micro-meteorological sensor, a temperature and humidity sensor, a water level sensor, a sulfur hexafluoride oxygen content sensor, an air conditioning controller, and a lighting controller.

[0018] Furthermore, the intelligent lock control subsystem includes a lock control monitoring terminal and locks and electronic keys connected to the lock control monitoring terminal.

[0019] Furthermore, the intelligent patrol subsystem includes a hard disk video recorder and bullet cameras, pan-tilt cameras, dome cameras, and panoramic cameras connected to the hard disk video recorder.

[0020] The beneficial effects of this utility model are:

[0021] 1. This utility model substation auxiliary equipment monitoring system is deployed in the substation. By integrating information from auxiliary equipment such as online monitoring of primary equipment, security monitoring, fire monitoring, environmental monitoring and intelligent lock control, it realizes the collection and centralized monitoring of auxiliary control data such as online monitoring, fire protection, security, environmental monitoring and lock control at the substation, breaking down the information silos between the original subsystems and in management.

[0022] 2. This utility model adopts a B / S structure for its main body and operates within a local area network. By building this system, it opens up vertical information interaction channels between various systems, enabling lower-level information to be directly connected to the management level. This changes the shortcomings of traditional decentralized command mode, such as the attenuation of instructions and the distortion of information transmission. At the same time, when expanding within a certain scale, the functions and operating status should not be affected by the expansion.

[0023] 3. The primary equipment online monitoring, security monitoring, fire monitoring, environmental monitoring and intelligent lock control of this utility model are deployed in Security Zone II, and the wireless sensor access and intelligent inspection subsystem are deployed in Security Zone IV. Security Zone II and Security Zone IV are interconnected through forward and reverse isolation devices; it meets the relevant specifications of State Grid Corporation of China's Network and Information System Security Management Measures, full-scenario network security protection and other relevant standards.

[0024] To make the above and other objects, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only seven of the drawings in this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a structural block diagram of this application;

[0027] Figure 2 This is a structural block diagram of the online equipment monitoring subsystem;

[0028] Figure 3 This is a structural block diagram of the fire protection subsystem.

[0029] Figure 4 This is a structural block diagram of the security defense subsystem.

[0030] Figure 5 This is a structural block diagram of the dynamic ring subsystem.

[0031] Figure 6This is a structural block diagram of the intelligent lock control subsystem.

[0032] Figure 7 This is a structural block diagram of the intelligent patrol subsystem. Detailed Implementation

[0033] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0034] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0035] Please see Figures 1-7 As shown, Figure 1 This invention discloses a substation integrated auxiliary monitoring system, characterized in that it includes a monitoring host, an integrated server, a communication network module, and a security isolation device.

[0036] The monitoring host communicates with the integrated server and the sub-monitoring system through a communication network module, and the integrated server and the sub-monitoring system also communicate with each other through a communication network module. The sub-monitoring system includes a primary equipment online monitoring subsystem, a fire protection subsystem, a security defense subsystem, an environmental monitoring subsystem, an intelligent lock control subsystem, and an intelligent patrol subsystem.

[0037] A first security isolation device is provided between the monitoring host and the integrated server and the sub-monitoring system, and a second security isolation device is provided between the monitoring host and the integrated server and the intelligent patrol subsystem.

[0038] The integrated server and intelligent inspection subsystem interact with the operation and maintenance master station through a gateway; the monitoring host interacts with the power control center through a gateway.

[0039] Based on the above description of this application, each sub-monitoring system of this application can operate independently when offline, and should be able to receive control commands from the operation and maintenance master station to realize the function of remote control of the controlled equipment. At the same time, it adopts the Simple Network Time Protocol (SNTP) time synchronization method to ensure the timeliness of communication.

[0040] The first security isolation device is a forward isolation device, and the second security isolation device is a forward and reverse isolation device. The isolation devices are used to divide security zones to form firewalls between zones, which facilitates the implementation of different security level protection measures. The gateway connects to the operation and maintenance master station to realize the interaction of data with the operation and maintenance master station.

[0041] Among them, such as Figure 2 As shown, the primary equipment online monitoring subsystem includes a transformer monitoring terminal, a switchgear monitoring terminal, and a digital meter monitoring terminal;

[0042] The transformer monitoring terminal includes an online monitoring unit for dissolved gas in oil, an online monitoring sensor for core / clamping grounding current, a digital remote transmission meter for leakage current, and a surge arrester for the neutral point complete set of equipment;

[0043] The switchgear monitoring terminal includes an online monitoring sensor for the contact temperature of high-current air-insulated switchgear.

[0044] Digital meter monitoring terminals: remote transmission meter for sulfur hexafluoride gas density, digital meter for surge arrester leakage current, digital oil temperature and level gauge for transformer, and remote transmission meter for insulating gas density of gas-filled switchgear.

[0045] The system collects the status information of each primary device in real time and transmits it point-to-point to the locally configured online monitoring IED of the primary device. The IED uses the DL / T860 protocol to integrate the data and send it to the integrated server and then to the monitoring host.

[0046] The specific equipment configuration is as follows:

[0047] (1) Online monitoring device for main transformer

[0048] 1) The transformer monitoring terminal is configured according to the number of main transformers in the substation, and one transformer monitoring terminal should be configured for each main transformer.

[0049] 2) Oil-immersed transformers and reactors of 220kV and above should be equipped with online monitoring units for dissolved gases in oil, preferably per transformer (reactor);

[0050] 3) Transformers of 66kV and above should be equipped with online monitoring devices for core / clamping grounding current, preferably configured for each transformer;

[0051] 4) Transformers of 35kV and above should be equipped with digital remote transmission meters for oil temperature and oil level;

[0052] 5) Transformers from 66kV to 220kV should be equipped with digital remote transmission meters for leakage current of the neutral point surge arrester.

[0053] (2) GIS / HGIS online monitoring device

[0054] 1) GIS / HGIS monitoring terminals should be configured according to voltage levels;

[0055] 2) GIS / HGIS of 66kV and above should be equipped with remote transmission meters for insulating gas density;

[0056] 3) 66kV and above GIS / HGIS built-in surge arresters should be equipped with digital remote transmission meters for leakage current.

[0057] (3) Circuit breaker online monitoring device

[0058] 1) Meter acquisition terminals should be configured according to voltage levels;

[0059] 2) Circuit breakers of 35kV and above should be equipped with remote transmission meters for insulating gas density.

[0060] (4) Air-insulated switchgear (only used for high-current switchgear such as incoming line cabinets and sectionalizing cabinets)

[0061] 1) Contact temperature monitoring terminals should be configured according to the switch cabinet room;

[0062] 2) Air-insulated switchgear such as 10kV incoming line cabinets and sectional cabinets should be equipped with contact temperature monitoring.

[0063] (5) Gas-insulated switchgear

[0064] 1) Meter acquisition terminals should preferably be configured in the switch cabinet room;

[0065] 2) 35kV and 10kV gas-insulated switchgear should be equipped with remote transmission meters for insulating gas density.

[0066] (6) Independent surge arrester

[0067] 1) Meter acquisition terminals should be configured according to voltage levels or connected to equipment interval acquisition terminals;

[0068] 2) For surge arresters of 66kV and above, digital remote transmission meters for leakage current should be installed.

[0069] Among them, such as Figure 3 As shown, the fire protection subsystem includes a fire information transmission and control unit;

[0070] The fire information transmission and control unit includes point-type fire detectors, linear beam smoke detectors, cable-type linear constant temperature fire detectors, fire water tank level transmitters, fire pipeline pressure transmitters, and fire power supply voltage transmitters.

[0071] The front-end devices in the automatic fire alarm system send data to the fire information transmission control unit via the bus. The fire information transmission control unit uses a standard protocol to integrate the data and send it to the integrated server, and then to the auxiliary equipment monitoring host.

[0072] The configuration principles for fire suppression subsystems are as follows:

[0073] (1) Based on the detection area and the characteristics of the electrical equipment in the area, the substation should be equipped with fire detectors of different principles and types.

[0074] (2) Each room and prefabricated cabin should be equipped with point-type heat and smoke detectors or aspirating smoke detectors.

[0075] (3) The battery room should be equipped with an explosion-proof smoke detector.

[0076] Areas with specific equipment operating temperature requirements, such as transformer rooms, cable tunnels, cable shafts, outdoor main transformers, and outdoor high-voltage transformers, should be equipped with cable-type linear constant-temperature fire detectors.

[0077] Equipment Configuration Instructions

[0078] The design process requires specifying the detection range, threshold settings, installation locations, and device dimensions for various sensing terminal devices.

[0079] (1) Point-type fire detector

[0080] The number of detectors required in each functional area is calculated using the following formula:

[0081]

[0082] In the formula, N is the number of detectors (units), and N should be an integer; S is the area of ​​the detection region (m²). 2 K is a correction factor. For public places with a capacity exceeding 10,000 people, a value of 0.7–0.8 is recommended; for public places with a capacity of 2,000–10,000 people, a value of 0.8–0.9 is recommended; for public places with a capacity of 500–2,000 people, a value of 0.9–1.0 is recommended; for other places, a value of 1.0 is acceptable. A is the protection area of ​​the detector (m²). 2 ).

[0083] (2) Linear infrared beam smoke detectors should be installed in the GIS room and power distribution room.

[0084] (3) Cable-type linear constant temperature fire detectors should be selected at the transformer body and primary cable tray.

[0085] (4) Manual fire alarm button: At least one manual fire alarm button shall be installed in each fire compartment.

[0086] (5) The modules for each alarm zone are configured according to actual needs.

[0087] (6) Analog transmitter

[0088] a) Based on the actual needs of the substation, configure fire water tank level transmitters and fire pipeline pressure transmitters to monitor the fire water tank level and fire pipeline pressure in real time.

[0089] b) Important fire-fighting equipment such as automatic fire alarm controllers, fixed fire extinguishing devices, fire pumps, and emergency smoke exhaust fans in substations should be equipped with fire power supply voltage transmitters to monitor the power supply voltage of these equipment in real time.

[0090] Among them, such as Figure 4 As shown, the security and defense subsystem includes an audible and visual alarm, an infrared dual-technology detector, an infrared beam detector, an emergency alarm button, an access control doorbell, an electronic fence, and a burglar alarm controller.

[0091] The system communicates with the security monitoring terminal via interfaces such as RJ45, I / O, and RS485. The security monitoring terminal uses the DL / T860 protocol to integrate and send data to the integrated server and then to the auxiliary equipment monitoring host, thereby realizing the collection and monitoring of security information at the station.

[0092] System Configuration Principles

[0093] The configuration principles for the security defense subsystem are as follows:

[0094] (1) A security monitoring terminal should be configured in the substation.

[0095] (2) Electronic fences should be installed around the substation walls, and infrared beam detectors should be installed at the main entrance for perimeter security.

[0096] (3) Infrared dual-technology detectors can be installed at the external doors and windows of each equipment room for illegal intrusion monitoring.

[0097] (4) Access control systems should be installed at the main entrance and the main equipment room that is not normally accessible.

[0098] (5) A doorbell should be installed at the entrance of the substation.

[0099] (6) For the monitoring room of a manned substation, an emergency alarm button should be installed.

[0100] (7) For substations that need to transmit alarm information to the alarm center remotely, a burglar alarm controller can be configured in the guard room of the substation.

[0101] Equipment Configuration Instructions

[0102] (1) Security monitoring terminal

[0103] The security monitoring terminal and other equipment in the subsystem are grouped together in a cabinet and arranged in the secondary equipment room.

[0104] (2) Electronic fence

[0105] 1) When deploying an electronic fence around the perimeter of a wall, the length of each defense zone should not exceed 100m. The electronic fence should use a four-wire or six-wire system.

[0106] 2) When the electronic fence host is installed outdoors, the enclosure protection level is IP32.

[0107] (3) Infrared beam detector

[0108] One to two pairs of infrared beam detectors should be installed above the substation gate for intrusion detection.

[0109] (4) Infrared dual-technology detector

[0110] 1) Infrared dual-technology detectors should be installed at the entrances and exits of monitoring rooms, secondary equipment rooms, switch rooms, etc.

[0111] 2) Long-range infrared dual-technology detectors should be installed in switch rooms and GIS rooms with long corridors.

[0112] (5) Access control

[0113] Access control systems should be installed at the substation gate, monitoring room, secondary equipment room, switch room, GIS room, capacitor room, and battery room. Access control systems should also be installed in other small rooms.

[0114] (6) Doorbell

[0115] A doorbell should be installed at the entrance of the substation.

[0116] (7) Emergency alarm button

[0117] Substations with voltage levels above 220kV should be equipped with one emergency alarm button, while substations with voltage levels of 220kV and below should preferably be equipped with one emergency alarm button.

[0118] (8) Audible and visual alarm device

[0119] The monitoring room and its perimeter should be equipped with audible and visual alarms. Secondary equipment rooms, switch rooms, and GIS rooms should preferably be equipped with audible and visual alarms.

[0120] Among them, such as Figure 5As shown, the dynamic environment subsystem includes a dynamic environment monitoring terminal and connected to the dynamic environment monitoring terminal a water immersion detector, a water leakage detector, a fan controller, a water pump controller, a dehumidifier controller, a micro-meteorological sensor, a temperature and humidity sensor, a water level sensor, a sulfur hexafluoride oxygen content sensor, an air conditioning controller, and a lighting controller.

[0121] The system communicates with the environmental monitoring terminal via RS485, I / O, and other interfaces. The environmental monitoring terminal uses the DL / T860 protocol to integrate and send the data to the integrated server and the auxiliary equipment monitoring host, thereby realizing the real-time acquisition and monitoring of environmental data at the station.

[0122] System Configuration Principles

[0123] The configuration principles for the dynamic environment subsystem are as follows:

[0124] (1) A set of environmental monitoring terminal should be installed in the substation and located in the secondary equipment room.

[0125] (2) Temperature and humidity sensors should be installed in the main primary equipment room, secondary equipment room and prefabricated cabin.

[0126] (3) Equipment rooms with potential insulation gas leakage should be equipped with insulation gas leakage monitoring sensors.

[0127] (4) Water immersion sensors should be installed in cable layers, outdoor cable trenches and other areas where cables are concentrated, and water level sensors should be installed in sump wells.

[0128] (5) Each substation should be equipped with an integrated micro-meteorological sensor on the roof of the main control building to collect data such as outdoor temperature, humidity, wind speed, wind direction, air pressure, and rainfall.

[0129] (6) Auxiliary lighting should be provided in station areas where supplementary lighting is needed.

[0130] When designing equipment configuration specifications, economic efficiency should be considered to optimize the layout of locations and quantities.

[0131] (1) Environmental monitoring terminal

[0132] Small wall-mounted environmental monitoring terminals should be configured according to equipment areas, with one terminal in each equipment area (room); centralized environmental monitoring terminals should be configured in substations, with at least one terminal in each substation, and should be placed in the cabinet of the auxiliary equipment intelligent monitoring system.

[0133] (2) Temperature and humidity sensor

[0134] Temperature and humidity sensors should be installed in important equipment rooms such as control rooms, secondary equipment rooms, GIS rooms, battery rooms, and independent communication equipment rooms. When the room area is less than 80 square meters, each room should be equipped with 1 to 2 temperature and humidity sensors; when the room area is greater than 80 square meters, each room should be equipped with 2 or more temperature and humidity sensors.

[0135] (3) Lighting controller

[0136] Lighting controllers should be installed in outdoor power distribution equipment areas, as well as in important secondary equipment rooms such as control rooms, secondary equipment rooms, and battery rooms. The number of lighting controllers should be determined based on the actual number of lighting fixtures being controlled.

[0137] (4) Auxiliary lighting

[0138] Cameras in outdoor locations that require supplemental lighting should be equipped with auxiliary lighting.

[0139] (5) Leakage sensor

[0140] Water leakage sensors can be installed on the floors of important equipment rooms such as secondary equipment rooms, switch rooms, and independent communication equipment rooms.

[0141] (6) Water level sensor

[0142] Each water collection well should be equipped with one water level sensor.

[0143] (7) Water immersion sensor

[0144] Water immersion sensors should be installed in areas with concentrated cables, such as substation cable layers and outdoor cable trenches. These sensors are typically placed in areas of the cable trench prone to water accumulation. One sensor should be installed every 60 meters or per section within the cable trench.

[0145] (8) Micro-weather sensor

[0146] Each substation's main control building should be equipped with an integrated micro-meteorological sensor on its roof to collect data on outdoor temperature, humidity, wind speed, wind direction, air pressure, rainfall, and other information.

[0147] (9) Air conditioning controller

[0148] Installed inside the air conditioner, one unit is configured for each air conditioner.

[0149] (10) Fan controller

[0150] Installed in the wind turbine control box, one unit is configured for each wind turbine control box.

[0151] (11) Water pump controller

[0152] Installed in the water pump control box, one unit should be configured for each water pump.

[0153] (12) SF6 sensor

[0154] SF6 leakage sensors should be installed in equipment rooms with potential SF6 leakage hazards, such as GIS rooms and SF6 circuit breaker switchgear rooms. One sensor should be installed in each bay.

[0155] Among them, such as Figure 6 As shown, the intelligent lock control subsystem includes a lock control monitoring terminal and locks and electronic keys connected to the terminal. It forms its own backend system, capable of uploading unlocking tasks, personnel and lock configuration information, and sending unlocking tasks to the electronic keys. An interface is reserved for the lock control monitoring terminal to connect to an auxiliary equipment intelligent monitoring system.

[0156] The arrangement of locks should conform to the following principles:

[0157] (1) 220kV and below substations:

[0158] 1) One lock controller and two electronic keys are centrally deployed, and a spare mechanical emergency unlocking key is configured;

[0159] 2) Locks are not required for use in situations where the system is frequently opened, such as locks for all station cabinet doors, lock boxes, ladder doors, and fence doors (excluding locks to prevent electrical misoperation), fire room doors, and pump room doors.

[0160] (2) Substations of 220kV and above:

[0161] 1) One lock controller and four electronic keys are centrally deployed, and a spare emergency unlocking key is configured;

[0162] 2) Locks are not required for use in situations where the system is frequently opened, such as locks for all station cabinet doors, lock boxes, ladder doors, and fence doors (excluding locks to prevent electrical misoperation), fire room doors, and pump room doors.

[0163] Among them, such as Figure 7 As shown, the intelligent patrol subsystem includes a hard disk video recorder and bullet cameras, pan-tilt cameras, dome cameras, and panoramic cameras connected to the hard disk video recorder.

[0164] Relevant video images and alarm information are uploaded to the intelligent inspection host via TCP / IP protocol, and the information can be transmitted to the integrated server and monitoring host through the intelligent inspection host to realize linkage with safety zones I and II and realize centralized collection of substation inspection data.

[0165] Linkage enables detection devices in various areas to work together. For example: 1) When a fire is detected, it supports emergency opening of access control doors in fire alarm-related areas and sets them to always-open state; it supports linkage to turn on on-site lighting and activate on-site audible and visual alarms; it supports linkage to turn on / off on-site fans; and it supports sending linkage information to other auxiliary equipment and intelligent inspection systems.

[0166] 2) When environmental data is abnormal and an alarm is triggered, it provides alarm linkage for exceeding limits of environmental monitoring data such as outdoor micro-meteorological data (heavy rain, etc.) and SF6 concentration; it enables the on-site fans, water pumps, dehumidifiers, air conditioners and other equipment to start, and automatically shut down after the alarm is reset; it supports sending linkage information to other auxiliary equipment and intelligent inspection systems.

[0167] System Configuration Principles

[0168] The camera configuration principles for the intelligent patrol subsystem are as follows:

[0169] (1) The camera layout should meet the requirements of substation security, equipment operation status monitoring and intelligent equipment inspection.

[0170] (2) Dome cameras should be installed at the station gate, the site inside the station, the outdoor equipment area, each room and prefabricated cabin. Pan-tilt cameras can be installed in the outdoor equipment area to conduct routine monitoring of the substation, taking into account environmental conditions, personnel behavior and equipment status analysis.

[0171] (3) High-definition fixed cameras, infrared thermal imaging cameras, and voiceprint monitoring devices should be installed in important primary equipment areas such as transformers and high-voltage reactors to meet the deployment requirements for remote online inspection.

[0172] (4) A panoramic camera should be installed on the roof of the building or the highest point of the equipment area to monitor the equipment area and cover blind spots.

[0173] (5) A bullet camera should be installed at the entrance of the station area to identify and record the license plates of personnel and vehicles entering the station.

[0174] (6) Waterproof spotlights can be installed near cameras in outdoor areas such as the perimeter of substations as needed to meet the monitoring requirements such as perimeter intrusion prevention and monitoring.

[0175] Equipment Configuration Instructions

[0176] (1) Gun-type camera

[0177] 1) An infrared bullet camera can be installed outside the substation gate, directly opposite the access control system card reader; a fixed camera should be installed at the entrance of the substation gate for monitoring the license plates of vehicles entering and exiting the gate.

[0178] 2) Fixed bullet cameras should be installed in areas where the cabinets are densely packed and not covered by other cameras.

[0179] (2) Dome camera

[0180] 1) One infrared high-definition dome camera is installed at each corner of the substation perimeter wall for perimeter intrusion monitoring;

[0181] 2) Main control room: 1-2 dome cameras in each small room;

[0182] 3) Relay room, secondary equipment room and communication equipment room: 1 to 2 dome cameras in each small room, and track cameras can be added as needed;

[0183] 4) Capacitor / Reactor Room: Each room should be equipped with 2-3 dome cameras;

[0184] 5) Station service transformer / grounding transformer room: Each room should be equipped with 1 to 2 dome cameras;

[0185] 6) Cable tray: One dome camera should be installed at each entrance and exit.

[0186] (3) Pan-tilt camera

[0187] They are commonly found in main transformer rooms, main transformer areas, and power distribution equipment areas. They are generally used in conjunction with dome cameras.

[0188] 1) For 330kV and below main transformers, each main transformer should be equipped with 1 to 2 dome cameras or pan-tilt cameras;

[0189] 2) For 500kV and 750kV main transformers, each main transformer should be equipped with 3 to 5 dome cameras or pan-tilt cameras;

[0190] 3) In outdoor power distribution equipment areas of 330kV and below, it is advisable to install 1 to 2 dome cameras or pan-tilt cameras for every 2 bays;

[0191] 4) In the 500kV and 750kV outdoor power distribution equipment area, each bay should be equipped with 1 to 2 dome cameras or pan-tilt cameras.

[0192] (4) Panoramic camera

[0193] Substations with voltage levels above 220kV should be equipped with 1 to 3 panoramic cameras, while substations with voltage levels below 220kV should be equipped with 1 to 2 panoramic cameras for monitoring the substation environment and equipment area. All indoor substations should be equipped according to actual conditions.

[0194] The above are merely embodiments of this utility model and are not intended to limit the patent scope of this utility model. Any equivalent structural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A substation integrated auxiliary monitoring system, characterized in that: Includes a monitoring host, integrated server, communication network module, and security isolation device; The monitoring host communicates with the integrated server and the sub-monitoring system through a communication network module, and the integrated server and the sub-monitoring system also communicate with each other through a communication network module. The sub-monitoring system includes a primary equipment online monitoring subsystem, a fire protection subsystem, a security defense subsystem, an environmental monitoring subsystem, an intelligent lock control subsystem, and an intelligent patrol subsystem. A first security isolation device is provided between the monitoring host and the integrated server and the sub-monitoring system, and a second security isolation device is provided between the monitoring host and the integrated server and the intelligent patrol subsystem. The integrated server and intelligent inspection subsystem interact with the operation and maintenance master station through a gateway; the monitoring host interacts with the power control center through a gateway. The first safety isolation device is a forward isolation device, and the second safety isolation device is a forward and reverse isolation device.

2. The substation integrated auxiliary monitoring system according to claim 1, characterized in that: The primary equipment online monitoring subsystem includes a transformer monitoring terminal, a switchgear monitoring terminal, and a digital meter monitoring terminal. The transformer monitoring terminal includes an online monitoring unit for dissolved gas in oil, an online monitoring sensor for core / clamping grounding current, a digital remote transmission meter for leakage current, and a surge arrester for the neutral point complete set of equipment; The switchgear monitoring terminal includes an online monitoring sensor for the contact temperature of high-current air-insulated switchgear. Digital meter monitoring terminals: remote transmission meter for sulfur hexafluoride gas density, digital meter for surge arrester leakage current, digital oil temperature and level gauge for transformer, and remote transmission meter for insulating gas density of gas-filled switchgear.

3. The substation integrated auxiliary monitoring system according to claim 1, characterized in that: The fire protection subsystem includes a fire information transmission and control unit; The fire information transmission and control unit includes point-type fire detectors, linear beam smoke detectors, cable-type linear constant temperature fire detectors, fire water tank level transmitters, fire pipeline pressure transmitters, and fire power supply voltage transmitters.

4. The substation integrated auxiliary monitoring system according to claim 1, characterized in that: The security and defense subsystem includes an audible and visual alarm, an infrared dual-technology detector, an infrared beam detector, an emergency alarm button, an access control doorbell, an electronic fence, and a burglar alarm controller.

5. The substation integrated auxiliary monitoring system according to claim 1, characterized in that: The dynamic environment subsystem includes a dynamic environment monitoring terminal and connected to the monitoring terminal a water immersion detector, a water leakage detector, a fan controller, a water pump controller, a dehumidifier controller, a micro-meteorological sensor, a temperature and humidity sensor, a water level sensor, a sulfur hexafluoride oxygen content sensor, an air conditioning controller, and a lighting controller.

6. The substation integrated auxiliary monitoring system according to claim 1, characterized in that: The intelligent lock control subsystem includes a lock control monitoring terminal and locks and electronic keys connected to the lock control monitoring terminal.

7. The substation integrated auxiliary monitoring system according to claim 1, characterized in that: The intelligent patrol subsystem includes a hard disk video recorder and bullet cameras, pan-tilt cameras, dome cameras, and panoramic cameras connected to the hard disk video recorder.

Images