Intelligent substation auxiliary control monitoring patrol system

Abstract

The invention discloses an auxiliary control monitoring patrol system for an intelligent substation, which is used in the field of power transmission and transformation project design and comprises an operation and maintenance centralized control scheduling unit, a comprehensive equipment operation and maintenance unit and an operation and maintenance interaction unit. The operation and maintenance centralized control dispatching unit is used for protecting, measuring and controlling the transformer substation, and regulating and controlling the comprehensive equipment operation and maintenance unit and the operation and maintenance interaction unit in a combined manner; the comprehensive equipment operation and maintenance unit is used for monitoring primary equipment, secondary equipment and a loop of the transformer substation on line and implementing safety protection on the transformer substation; and the operation and maintenance interaction unit is used for information interaction between the comprehensive equipment operation and maintenance unit and the centralized control scheduling unit. According to the invention, a novel digital intelligent substation auxiliary control monitoring and patrolling system is constructed, functions of online monitoring, intelligent patrolling and the like are added, front-end equipment configuration and terminal equipment transmission modes are re-integrated, and panoramic dynamic monitoring, comprehensive intelligent sensing and omnibearing real-time monitoring of the substation are realized.

Description

Technical Field

[0001] The present invention relates to the field of power transmission and transformation engineering design, and in particular to an intelligent substation auxiliary control monitoring and inspection system. Background Art

[0002] Substations, as a bridge connecting power generation and power consumption, play an important role in power energy conversion, dispatching and operation, and information monitoring in the power grid. The development of substations has undergone continuous technological updates and iterations from traditional substations, integrated automated substations to smart substations. At present, in order to serve the construction of a new power system and build a more digital, intelligent, green, low-carbon, safe and reliable power transmission and transformation project, State Grid Corporation of China has proposed to build a new digital intelligent substation, fully absorb advanced and applicable technologies, improve the ability of the power grid to support the construction of a new power system, and comprehensively apply advanced technologies such as digital acquisition, network transmission, intelligent equipment, and system integration to achieve comprehensive perception of the status of substation equipment, controllable and under-control of main and auxiliary equipment, and support remote panoramic monitoring, intelligent regulation, and intelligent operation and maintenance functions.

[0003] In the new digital substation, in order to support the comprehensive monitoring of substation auxiliary control equipment and the intelligent inspection of equipment status, the monitoring subsystems such as substation online monitoring, fire and security monitoring, and environmental monitoring are integrated with the inspection subsystems such as infrared detection terminals, inspection cameras, sensors and intelligent lock controls, forming a new digital intelligent substation monitoring and inspection system with a comprehensive application server as the background, the subsystem host as the integration end, and each detector as the terminal device.

[0004] As the level of intelligence of power equipment increases and unmanned substations increase, it is an inevitable trend to use monitoring technologies such as intelligent video surveillance, sensors, smart terminals, detectors, etc. to realize remote visual monitoring, substation perimeter security, smart inspection and other functions to enhance the digitalization and intelligence capabilities of substations.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0006] In order to overcome the above problems, the present invention aims to propose an intelligent substation auxiliary control monitoring and patrol system to overcome the above technical problems existing in the existing related technologies.

[0007] To this end, the specific technical solution adopted by the present invention is as follows:

[0008] An intelligent substation auxiliary control monitoring and patrol system, the intelligent substation auxiliary control monitoring and patrol system includes an operation and maintenance centralized control dispatching unit, a comprehensive equipment operation and maintenance unit and an operation and maintenance interactive unit;

[0009] The operation and maintenance centralized control and dispatching unit is used to protect and monitor the substation, and merge and control the comprehensive equipment operation and maintenance unit and the operation and maintenance interaction unit;

[0010] Comprehensive equipment operation and maintenance unit, used for online monitoring of primary equipment, secondary equipment and circuits of substations, and implementation of safety protection for substations;

[0011] The operation and maintenance interaction unit is used to interact with the equipment operation and maintenance unit and the centralized control and dispatching unit.

[0012] Optionally, the integrated equipment operation and maintenance unit includes a primary equipment online monitoring module, a secondary equipment and loop online monitoring module, and a fire protection, security and patrol system monitoring module;

[0013] The primary equipment online monitoring module is used to monitor the operating status of the primary equipment in the substation;

[0014] The secondary equipment and loop online monitoring module is used to monitor the status of secondary equipment and loops in the substation online, obtain and analyze network messages, and perform loop fault diagnosis based on loop status and network message information;

[0015] Fire protection, security and patrol system monitoring module is used for fire warning and emergency response, safety protection and intrusion detection, equipment operation status monitoring and environmental parameter management of substations.

[0016] Optionally, the primary equipment online monitoring module includes a transformer detection submodule, a switch detection submodule, a capacitive device and lightning arrester detection submodule and a digital meter detection submodule;

[0017] Transformer detection submodule, used for transformer oil temperature and oil level monitoring, core clamp grounding current monitoring and oil dissolved gas monitoring;

[0018] The switch detection submodule is used to monitor the density of the switch insulation gas and measure the temperature of the switch cabinet contacts;

[0019] Capacitive device and arrester detection submodule, used for arrester leakage current monitoring;

[0020] The digital meter detection submodule is used to centrally monitor, analyze and manage detection data.

[0021] Optionally, the secondary equipment and loop online monitoring module includes a secondary equipment status online monitoring submodule, a network message analysis submodule, a secondary loop online monitoring submodule and a secondary loop fault intelligent diagnosis submodule;

[0022] The secondary equipment status online monitoring submodule is used to monitor the temperature, power supply voltage, process layer port send-receive light intensity and protection fiber longitudinal channel light intensity of the secondary equipment in the substation in real time, and visualize the monitoring results;

[0023] The network message analysis submodule is used to analyze the communication process of secondary equipment in the substation, including network status diagnosis, message consistency check and abnormal situation alarm;

[0024] The secondary circuit online monitoring submodule is used to monitor the virtual circuits and physical circuits involved in the secondary equipment in the substation in real time;

[0025] The secondary circuit fault intelligent diagnosis submodule is used to assist in locating the fault point or fault area and provide prompt information in combination with the network message analysis submodule and the secondary circuit online monitoring submodule.

[0026] Optionally, the virtual circuits and physical circuits involved in the secondary equipment in the substation in the secondary circuit online monitoring submodule include:

[0027] The virtual circuit includes the virtual circuit covering the logical link status of the secondary equipment in the substation, the status of the associated soft pressure plate, and the corresponding network message status;

[0028] The physical loop includes the optical fiber port monitoring information covering the secondary equipment in the substation, and the process layer optical fiber loop of the logical link alarm information.

[0029] Optionally, the fire protection, security and patrol system monitoring module includes a fire protection monitoring submodule, a safety protection submodule, a power environment monitoring submodule and an intelligent patrol submodule;

[0030] Fire monitoring submodule is used for the collection, transmission and linkage control of fire alarm information within the station, and real-time early warning;

[0031] Security and defense monitoring submodule, used for real-time monitoring of security and defense of substations;

[0032] The power environment monitoring submodule is used to monitor the temperature, humidity, wind speed, wind direction, air pressure, and rainfall data information inside the substation;

[0033] The intelligent patrol submodule is used to monitor and collect data on the operating status of the substation in real time, and to analyze the operating status of the substation through automatic patrol to achieve intelligent linkage and remote operation between devices in the substation.

[0034] Optionally, the fire monitoring in the fire monitoring submodule is configured with fire detectors of different principles and types according to the characteristics of the detection area and the electrical equipment in the area. Point-type temperature-sensitive smoke fire detectors or aspirating smoke detectors are configured in the rooms and prefabricated cabins in the substation; explosion-proof smoke fire detectors are configured in the battery room; and cable-type linear constant-temperature fire detectors are configured in rooms with temperature requirements.

[0035] Optionally, the safety protection submodule includes a security detection submodule and an intelligent lock control submodule;

[0036] The security detection submodule is used to link with the intelligent patrol submodule to monitor abnormal behavior and issue an alarm;

[0037] The intelligent lock control submodule is used to issue unlocking tasks to electronic keys according to unlocking tasks, personnel and lock configuration information, so as to realize safe and intelligent unlocking of doors inside the substation.

[0038] Optionally, the power environment monitoring submodule includes a power environment monitoring terminal, an air conditioning controller, a lighting controller, a fan and water pump controller, a temperature and humidity sensor, a dehumidifier controller, a micro-meteorological sensor, a water immersion and water level sensor, and an insulating gas monitoring sensor device.

[0039] Optionally, the linkage intelligent patrol submodule monitors abnormal behavior and issues an alarm including the following steps:

[0040] Infrared dual-detection detectors detect abnormal behaviors such as entering the station without using access card authorization, climbing walls, and climbing over gates;

[0041] The infrared radiation detector sends abnormal behavior signals to the anti-theft alarm controller for sound and light alarm;

[0042] Linked with intelligent patrol cameras, it pushes real-time video images of the alarm area and displays the activities of illegal intruders.

[0043] Compared with the prior art, this application has the following beneficial effects:

[0044] The present invention constructs a new digital intelligent substation auxiliary control monitoring and patrol system to make up for the shortcomings of the traditional auxiliary control system in comprehensive spatial monitoring and patrol capabilities of the substation and the defect that the dispatching operation and maintenance cannot receive relevant information such as auxiliary control equipment, adds new functions such as online monitoring and intelligent patrol, and reintegrates the front-end equipment configuration and terminal equipment transmission mode to achieve panoramic dynamic monitoring, comprehensive intelligent perception, and all-round real-time monitoring of the substation. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The above characteristics, features and advantages of the present invention and their implementation methods and methods will become more clearly understood in conjunction with the following description of the embodiments, which are described in detail in conjunction with the accompanying drawings. Herein, a schematic diagram is shown:

[0046] Figure 1 This is a principle block diagram of a smart substation auxiliary control monitoring and patrol system according to an embodiment of the present invention;

[0047] Figure 2 The present invention is a schematic diagram of a new digital substation monitoring and inspection terminal system in an intelligent substation auxiliary control monitoring and inspection system according to an embodiment of the present invention.

[0048] In the figure:

[0049] 1. Operation and maintenance centralized control and dispatching unit; 2. Comprehensive equipment operation and maintenance unit; 3. Operation and maintenance interaction unit. DETAILED DESCRIPTION

[0050] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0051] According to an embodiment of the present invention, a smart substation auxiliary control monitoring and patrol system is provided.

[0052] The present invention is further described with reference to the accompanying drawings and specific embodiments. Figure 1-Figure 2 As shown, according to the configuration method of an embodiment of the present invention, the intelligent substation auxiliary control monitoring and patrol system includes an operation and maintenance centralized control dispatching unit 1, a comprehensive equipment operation and maintenance unit 2 and an operation and maintenance interaction unit 3;

[0053] The operation and maintenance centralized control and dispatching unit 1 is used to protect and monitor the substation, and to combine and control the comprehensive equipment operation and maintenance unit 2 and the operation and maintenance interaction unit 3;

[0054] Integrated equipment operation and maintenance unit 2, used for online monitoring of primary equipment, secondary equipment and circuits of the substation, and implementation of safety protection for the substation;

[0055] The operation and maintenance interaction unit 3 is used to interact information between the comprehensive equipment operation and maintenance unit 2 and the centralized control and scheduling unit 1.

[0056] It needs to be explained that the substation is divided into safety zone I, safety zone II and safety zone IV, and the monitoring and patrol systems are connected to the three safety zones respectively. The substation's conventional protection, measurement and control and merging units, and intelligent terminal equipment are connected to safety zone I; the primary equipment online monitoring, secondary system online monitoring, fire protection, security defense, and power environment subsystems are deployed in safety zone II, and information is accessed to the comprehensive application server, and information is exchanged with the centralized control station through the zone II gateway; during the transition period when the centralized control station has not yet been built, and the operation and maintenance main station is deployed in zone IV, information is exchanged with the main station through the zone IV gateway. The intelligent patrol subsystem is deployed in safety zone IV, and information is accessed to the patrol host, and information is exchanged with the intelligent patrol centralized monitoring system of the centralized control station; during the transition period when the centralized control station has not yet been built, station-side information is exchanged with the operation and maintenance main station. Safety zone II and safety zone IV are interconnected through forward and reverse isolation devices. The system composition is as follows Figure 2 shown.

[0057] Preferably, the integrated equipment operation and maintenance unit 2 includes a primary equipment online monitoring module, a secondary equipment and loop online monitoring module, and a fire protection, security and patrol system monitoring module;

[0058] The primary equipment online monitoring module is used to monitor the operating status of the primary equipment in the substation;

[0059] The secondary equipment and loop online monitoring module is used to monitor the status of secondary equipment and loops in the substation online, obtain and analyze network messages, and perform loop fault diagnosis based on loop status and network message information;

[0060] Fire protection, security and patrol system monitoring module is used for fire warning and emergency response, safety protection and intrusion detection, equipment operation status monitoring and environmental parameter management of substations.

[0061] Preferably, the primary equipment online monitoring module includes a transformer detection submodule, a switch detection submodule, a capacitive device and lightning arrester detection submodule and a digital meter detection submodule;

[0062] Transformer detection submodule, used for transformer oil temperature and oil level monitoring, core clamp grounding current monitoring and oil dissolved gas monitoring;

[0063] The switch detection submodule is used to monitor the density of the switch insulation gas and measure the temperature of the switch cabinet contacts;

[0064] Capacitive device and arrester detection submodule, used for arrester leakage current monitoring;

[0065] The digital meter detection submodule is used to centrally monitor, analyze and manage detection data.

[0066] It should be noted that the online monitoring of primary equipment mainly realizes the functions of main transformer oil temperature and oil level monitoring, core clamp grounding current monitoring and dissolved gas monitoring; switch insulation gas density monitoring, switch cabinet contact temperature measurement, lightning arrester leakage current monitoring, etc. The substation GIS (gas insulated switchgear) or HGIS (hybrid gas insulated switchgear) equipment with a voltage level of 330kV and above reserves ultra-high frequency partial discharge sensors and test interfaces. The front-end equipment of the online monitoring of primary equipment collects the status information of the primary equipment in the substation. The equipment configuration is shown in Table 1.

[0067] Table 1 Substation primary equipment online monitoring terminal

[0068]

[0069]

[0070] Preferably, the secondary equipment and loop online monitoring module includes a secondary equipment status online monitoring submodule, a network message analysis submodule, a secondary loop online monitoring submodule and a secondary loop fault intelligent diagnosis submodule;

[0071] The secondary equipment status online monitoring submodule is used to monitor the temperature, power supply voltage, process layer port send-receive light intensity and protection fiber longitudinal channel light intensity of the secondary equipment in the substation in real time, and visualize the monitoring results;

[0072] The network message analysis submodule is used to analyze the communication process of secondary equipment in the substation, including network status diagnosis, message consistency check and abnormal situation alarm;

[0073] The secondary circuit online monitoring submodule is used to monitor the virtual circuits and physical circuits involved in the secondary equipment in the substation in real time;

[0074] The secondary circuit fault intelligent diagnosis submodule is used to assist in locating the fault point or fault area and provide prompt information in combination with the network message analysis submodule and the secondary circuit online monitoring submodule.

[0075] The virtual circuits and physical circuits involved in the secondary equipment in the substation in the secondary circuit online monitoring submodule include the following:

[0076] The virtual circuit includes the virtual circuit covering the logical link status of the secondary equipment in the substation, the status of the associated soft pressure plate, and the corresponding network message status;

[0077] The physical loop includes the process layer optical fiber loop covering the monitoring information of the optical fiber ports where the secondary equipment in the substation is located, and the alarm information of the logical link.

[0078] It should be noted that the secondary system online monitoring mainly realizes the functions of online monitoring of secondary equipment status, network message analysis, online monitoring of secondary virtual circuits, online monitoring of process layer optical fiber circuits, and intelligent diagnosis of secondary circuit faults. It collects the status data of secondary equipment such as protection devices, safety automatic devices, measurement and control devices, process layer devices, and zone I switches, port connection status, SV / GOOSE messages (sampled value messages / general object-oriented substation event messages) and MMS messages (multimedia information service messages). The secondary system online monitoring realizes the online monitoring of the secondary equipment status. It has the functions of monitoring the secondary equipment temperature, power supply voltage, the sending / receiving light intensity of the process layer port and the light intensity of the protection optical fiber longitudinal channel, and can monitor online visually; it has the functions of communication process analysis, network status diagnosis, message consistency check, and abnormal situation alarm message analysis; it displays the detailed information of the loop status when it is abnormal, such as the logical link status, the status of the associated soft pressure plate, the corresponding network message status and other secondary virtual loop online monitoring functions; it can locate the physical link fault according to the optical fiber port monitoring information of the device and the logical link alarm information, and other process layer optical fiber loop online monitoring functions, which can assist in locating the fault point or fault area, give prompt information, and clearly mark it on the map.

[0079] Preferably, the fire protection, security and patrol system monitoring module includes a fire protection monitoring submodule, a safety protection submodule, a power environment monitoring submodule and an intelligent patrol submodule;

[0080] Fire monitoring submodule is used for the collection, transmission and linkage control of fire alarm information within the station, and real-time early warning;

[0081] Security and defense monitoring submodule, used for real-time monitoring of security and defense of substations;

[0082] The power environment monitoring submodule is used to monitor the temperature, humidity, wind speed, wind direction, air pressure, and rainfall data information inside the substation;

[0083] The intelligent patrol submodule is used to monitor and collect data on the operating status of the substation in real time, and to analyze the operating status of the substation through automatic patrol to achieve intelligent linkage and remote operation between devices in the substation.

[0084] In the fire monitoring submodule, fire detectors of different principles and types are configured according to the characteristics of the detection area and the electrical equipment in the area. Point-type temperature-sensitive smoke fire detectors or aspirating smoke detectors are configured in the rooms and prefabricated cabins in the substation; explosion-proof smoke fire detectors are configured in the battery room; and cable-type linear fixed-temperature fire detectors are configured in rooms with temperature requirements.

[0085] The safety protection submodule includes a security detection submodule and an intelligent lock control submodule;

[0086] The security detection submodule is used to link with the intelligent patrol submodule to monitor abnormal behavior and issue an alarm;

[0087] The intelligent lock control submodule is used to issue unlocking tasks to electronic keys according to unlocking tasks, personnel and lock configuration information, so as to realize safe and intelligent unlocking of doors inside substations.

[0088] The power environment monitoring submodule includes the power environment monitoring terminal, air conditioning controller, lighting controller, fan and water pump controller, temperature and humidity sensors, dehumidifier controller, micro-meteorological sensor, water immersion and water level sensor, and insulating gas monitoring sensor equipment.

[0089] The linkage intelligent patrol submodule monitors abnormal behavior and issues an alarm, including the following steps:

[0090] Infrared dual-detection detectors detect abnormal behaviors such as entering the station without using access card authorization, climbing walls, and climbing over gates;

[0091] The infrared radiation detector sends abnormal behavior signals to the anti-theft alarm controller for sound and light alarm;

[0092] Linked with intelligent patrol cameras, it pushes real-time video images of the alarm area and displays the activities of illegal intruders.

[0093] It should be noted that the substation security and defense monitoring is equipped with security monitoring terminals, anti-theft alarm controllers, access control controllers, electronic fences, infrared dual-detection detectors, infrared beam detectors, sound and light alarms, emergency alarm buttons and other equipment. Security and defense monitoring is equipped with a set of security monitoring terminals, which are arranged in the secondary equipment room; an electronic fence is configured, and an infrared beam detector is configured at the substation gate entrance for perimeter security; emergency alarm buttons are configured for unmanned guard rooms or monitoring rooms of manned substations; infrared dual-detection detectors are configured at the doors and windows of the equipment room for illegal intrusion monitoring; access control is configured at the gate entrance and the main equipment room (prefabricated cabin); and a doorbell is set at the substation gate entrance.

[0094] The power environment monitoring of the substation includes dynamic environment monitoring terminals, air conditioning controllers, lighting controllers, fan and water pump controllers, temperature and humidity sensors, dehumidifier controllers, micro-meteorological sensors, water immersion and water level sensors, insulating gas monitoring sensors and other equipment. The power environment monitoring system is equipped with a set of dynamic environment monitoring terminals, which are arranged in the secondary equipment room; temperature and humidity sensors are configured in the primary equipment room, secondary equipment room and prefabricated cabin; insulating gas leakage monitoring sensors are configured in equipment rooms with potential insulating gas leakage hazards; water immersion sensors are configured in cable layers, outdoor cable trenches and other cable concentration areas, and water level sensors are configured in water collection wells; an integrated micro-meteorological sensor is configured on the roof of the main control building to collect outdoor temperature, humidity, wind speed, wind direction, air pressure, and rainfall data; auxiliary lights are configured in the station area where there is a need for additional lighting.

[0095] Substation lock control consists of lock control monitoring terminal, electronic keys, locks and other supporting equipment. It is a self-contained backend system with the functions of sending unlocking tasks, personnel and lock configuration information, and sending unlocking tasks to electronic keys. Intelligent lock control is equipped with a lock control controller, electronic keys (2 electronic keys for 35-220kV substations and 4 for 330kV-750kV substations), and a spare emergency unlocking key; locks are deployed on all station room doors, secondary panel cabinet doors, terminal box doors, ladder doors, and fence doors (excluding locks to prevent electrical misoperation); fire room doors, water pump room doors and other occasions that need to be open frequently do not need to deploy locks.

[0096] The intelligent patrol of substations is composed of patrol hosts, video equipment, etc., to realize functions such as data collection, automatic patrol, intelligent analysis, real-time monitoring, intelligent linkage, and remote operation. The intelligent patrol operation of substations is completed by cameras, which are composed of station control layer equipment (1 set of patrol hosts, 1 set of storage devices, 1 set of network switches, etc.) and front-end equipment. It is deployed in the safety zone IV and interconnected with the safety zone I / II system in the station through a set of physical isolation equipment. It exchanges information with the intelligent patrol centralized monitoring system of the centralized control station through the integrated data network (communicating with the operation and maintenance main station during the transition period). The front-end equipment of intelligent patrol mainly includes high-definition gun cameras, high-definition ball cameras, high-definition explosion-proof hemispherical cameras, pan-tilt cameras, infrared thermal imaging cameras, panoramic cameras, etc., among which high-definition cameras have night vision functions.

[0097] 1) Patrol host

[0098] Substations of 330kV and above are equipped with independent patrol hosts. The patrol hosts realize unified access to video equipment, issue control commands, analyze patrol results, and interact with the upper-level system. Substations of 220kV and below are equipped with independent edge patrol hosts. The edge patrol hosts are deployed in substations and have the ability to access patrol equipment such as in-station cameras, robots, drones, and voiceprint monitoring devices.

[0099] 2) Video surveillance

[0100] Video surveillance cameras are installed with infrared temperature measurement cameras in the main transformer (including adjustment and compensation transformer) and high-resistance areas to realize automatic temperature measurement and inspection of the main body, casing, lead head, drainage line, oil pillow, and end screen; cameras are installed on poles around the substation, and gun-type cameras are installed at the entrances and exits to meet the requirements of clearly monitoring the perimeter and the activities of personnel at the entrances and exits, physical characteristics, and vehicle license plates; parameters such as oil temperature gauges, winding temperature gauges, and oil pressure gauges are digitally transmitted to realize image acquisition functions; for parameters such as casing oil level gauges, image data is collected through cameras. After configuring dual-spectrum infrared temperature measurement cameras, the configuration of visible light cameras is reduced accordingly; when configuring visible light cameras, digital high-definition cameras are preferred, with a resolution of not less than 1080P and night vision functions.

[0101] The monitoring and patrol cameras in the substation are mainly video surveillance cameras for intelligent patrol and security monitoring cameras. The installation locations and quantities of patrol cameras for this project are shown in Table 2, and the installation locations and quantities of security cameras are shown in Table 3.

[0102] Table 2 Patrol camera layout

[0103]

[0104]

[0105] Table 3 Security camera layout

[0106]

[0107] The substation is equipped with a security defense system, which adopts a two-layer defense plan. The first layer is for the perimeter defense of the substation, and the second layer is for the key areas in the station. It is equipped with a technical defense host; a 600-meter six-wire electronic fence, 9 fence hosts; 6 infrared shooting devices, 2 air windows arranged in the underground cable layer, and 4 doors and windows on the first floor of the control building; 20 indoor infrared dual-detection detectors, arranged in the main passages of each floor of the control building; an access control system is configured on the first floor of the control building and the entrance of the monitoring room. The access control system is linked with the fire alarm system in the station. When there is a fire alarm, the access control system is automatically unlocked; a door magnetic alarm device, a visual intercom device, and a keyboard for arming and disarming are set at the gate of the substation, and an audible and visual alarm is arranged in the station area.

[0108] The substation is equipped with an environmental information collection system, which includes an environmental data processing unit and various terminal sensors.

[0109] 1) Temperature and humidity sensors are arranged in the main transformer room, grounding transformer room, capacitor room, reactor room, station transformer room, 220kV GIS room (gas insulated switchgear equipment), 110kV GIS room (gas insulated switchgear equipment), 35kV distribution device room, relay room, battery room, fire pump room and deluge valve room, with a total of 32 temperature and humidity sensors.

[0110] 2) 20 water immersion sensors and water level sensors are configured in the cable layer.

[0111] 3) SF6 leakage sensors are arranged in 220kV and 110kV GIS distribution rooms (gas insulated switchgear equipment) and 35kV distribution rooms. 36 SF6 and O2 dual-gas detectors are installed on the foundation channel steel of 220kV and 110kV distribution rooms, and 20 SF6 and O2 dual-gas detectors are installed in 35kV distribution rooms. When the detectors in each detection room find that the gas exceeds the standard, they will send a signal to the host. The host will send a signal to start the SF6 gas discharge fan in the station to exhaust the accident and sound the alarm at the same time.

[0112] 4) The configuration of fan and water pump air conditioning controller is 1 air conditioning controller for each air conditioner, 1 fan controller for every 2 fans, 1 dehumidifier controller for every 2 dehumidifiers, and 1 water pump controller for every 2 water pumps.

[0113] To sum up, with the help of the above-mentioned technical scheme of the present invention, the present invention constructs a new digital intelligent substation auxiliary control monitoring and patrol system, which makes up for the shortcomings of the traditional auxiliary control system in comprehensive spatial monitoring and patrol capabilities of the substation and the dispatching and operation and maintenance cannot receive relevant information such as auxiliary control equipment, adds new functions such as online monitoring and intelligent patrol, reintegrates the front-end equipment configuration and terminal equipment transmission mode, and realizes panoramic dynamic monitoring, comprehensive intelligent perception, and all-round real-time monitoring of the substation.

[0114] Although the present invention has been disclosed as above with preferred embodiments, the embodiments are merely examples for the convenience of description and are not intended to limit the present invention. Those skilled in the art may make several changes and modifications without departing from the spirit and scope of the present invention. The scope of protection claimed by the present invention shall be based on the claims.

Claims

1. A smart substation auxiliary control monitoring and inspection system, characterized in that: The intelligent substation auxiliary control monitoring and inspection system includes an operation and maintenance centralized control and dispatching unit, a comprehensive equipment operation and maintenance unit, and an operation and maintenance interaction unit; The operation and maintenance centralized control and dispatching unit is used to protect and monitor the substation, and to combine and regulate the comprehensive equipment operation and maintenance unit and the operation and maintenance interaction unit; The integrated equipment operation and maintenance unit is used to monitor the primary equipment, secondary equipment and circuits of the substation online and implement safety protection for the substation; The operation and maintenance interaction unit is used to interact information between the comprehensive equipment operation and maintenance unit and the centralized control and scheduling unit.

2. According to claim 1, a smart substation auxiliary control monitoring and patrol system is characterized in that: The comprehensive equipment operation and maintenance unit includes a primary equipment online monitoring module, a secondary equipment and loop online monitoring module, and a fire protection, security and patrol system monitoring module; The primary equipment online monitoring module is used to monitor the operating status of the primary equipment in the substation; The secondary equipment and loop online monitoring module is used to monitor the status of secondary equipment and loops in the substation online, obtain and analyze network messages, and perform loop fault diagnosis based on the loop status and network message information; The fire protection, security and patrol system monitoring module is used for fire warning and emergency response, safety protection and intrusion detection, equipment operation status monitoring and environmental parameter management of the substation.

3. According to claim 2, a smart substation auxiliary control monitoring and patrol system is characterized in that: The primary equipment online monitoring module includes a transformer detection submodule, a switch detection submodule, a capacitive device and lightning arrester detection submodule and a digital meter detection submodule; The transformer detection submodule is used to monitor the transformer oil temperature and oil level, the core clamp grounding current and the dissolved gas in the oil; The switch detection submodule is used to monitor the density of the switch insulating gas and measure the temperature of the switch cabinet contacts; The capacitive device and arrester detection submodule is used for arrester leakage current monitoring; The digital meter detection submodule is used to centrally monitor, analyze and manage detection data.

4. According to claim 2, a smart substation auxiliary control monitoring and patrol system is characterized in that: The secondary equipment and loop online monitoring module includes a secondary equipment status online monitoring submodule, a network message analysis submodule, a secondary loop online monitoring submodule and a secondary loop fault intelligent diagnosis submodule; The secondary equipment status online monitoring submodule is used to monitor the temperature, power supply voltage, process layer port send-receive light intensity and protection optical fiber longitudinal channel light intensity of the secondary equipment in the substation in real time, and visualize the monitoring results; The network message analysis submodule is used to analyze the communication process of secondary equipment in the substation, including network status diagnosis, message consistency check and abnormal situation alarm; The secondary circuit online monitoring submodule is used to monitor the virtual circuit and physical circuit involved in the secondary equipment in the substation in real time; The secondary circuit fault intelligent diagnosis submodule is used to assist in locating the fault point or fault area in combination with the network message analysis submodule and the secondary circuit online monitoring submodule, and to provide prompt information.

5. The intelligent substation auxiliary control monitoring and patrol system according to claim 4 is characterized in that: The virtual circuits and physical circuits involved in the secondary equipment in the substation in the secondary circuit online monitoring submodule include: The virtual circuit includes the virtual circuit covering the logical link status of the secondary equipment in the substation, the status of the associated soft pressure plate, and the corresponding network message status; The physical loop includes the process layer optical fiber loop covering the monitoring information of the optical fiber ports where the secondary equipment in the substation is located, and the alarm information of the logical link.

6. The intelligent substation auxiliary control monitoring and patrol system according to claim 2 is characterized in that: The fire protection, security and patrol system monitoring module includes a fire protection monitoring submodule, a safety protection submodule, a power environment monitoring submodule and an intelligent patrol submodule; The fire monitoring submodule is used for the collection, transmission and linkage control of fire alarm information within the station and real-time early warning; The security defense monitoring submodule is used for real-time monitoring of security defense of the substation; The power environment monitoring submodule is used to monitor the temperature, humidity, wind speed, wind direction, air pressure, and rainfall data information inside the substation; The intelligent patrol submodule is used to perform real-time monitoring and data collection on the operating status in the substation, and to analyze the operating status in the substation through automatic patrol to achieve intelligent linkage and remote operation between the devices in the substation.

7. The intelligent substation auxiliary control monitoring and patrol system according to claim 6 is characterized in that: The fire monitoring in the fire monitoring submodule is configured with fire detectors of different principles and types according to the characteristics of the detection area and the electrical equipment in the area. The rooms and prefabricated cabins in the substation are equipped with point-type temperature-sensitive smoke fire detectors or aspirating smoke detectors; the battery room is equipped with explosion-proof smoke fire detectors; and the rooms with temperature requirements are equipped with cable-type linear fixed-temperature fire detectors.

8. The intelligent substation auxiliary control monitoring and patrol system according to claim 6 is characterized in that: The safety protection submodule includes a security detection submodule and an intelligent lock control submodule; The security detection submodule is used to link with the intelligent patrol submodule to monitor abnormal behavior and issue an alarm; The intelligent lock control submodule is used to issue unlocking tasks to electronic keys according to unlocking tasks, personnel and lock configuration information, so as to realize safe and intelligent unlocking of doors inside the substation.

9. The intelligent substation auxiliary control monitoring and patrol system according to claim 6 is characterized in that: The power environment monitoring submodule includes a power environment monitoring terminal, an air conditioning controller, a lighting controller, a fan and water pump controller, a temperature and humidity sensor, a dehumidifier controller, a micro-meteorological sensor, a water immersion and water level sensor, and an insulating gas monitoring sensor device.

10. The intelligent substation auxiliary control monitoring and patrol system according to claim 6, characterized in that: The linking of the intelligent patrol submodule to monitor abnormal behavior and issue an alarm includes the following steps: Infrared dual-detection detectors detect abnormal behaviors such as entering the station without using access card authorization, climbing walls, and climbing over gates; The infrared radiation detector sends abnormal behavior signals to the anti-theft alarm controller for sound and light alarm; Linked with intelligent patrol cameras, it pushes real-time video images of the alarm area and displays the activities of illegal intruders.

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