CN201629605U - Substation Intelligent Monitoring and Auxiliary Control System Based on Internet of Things - Google Patents

Abstract

The utility model is aimed at auxiliary production systems such as image monitoring, security guards, fire alarms, main transformer fire protection, water supply and drainage, heating and ventilation, etc. currently configured in substations. Based on the actual situation of information isolated islands, a substation intelligent monitoring and auxiliary control system based on the Internet of Things is proposed, including a substation management host. The host is connected through the power communication network. It can rely on the technical advantages of the Internet of Things to integrate various auxiliary systems currently existing in substations, thereby forming a unified intelligent monitoring and auxiliary control platform for substations.

Description

Substation Intelligent Monitoring and Auxiliary Control System Based on Internet of Things

technical field

The utility model relates to an electronic monitoring and control system for a substation, in particular to an intelligent monitoring and auxiliary control system for a substation based on the Internet of Things.

Background technique

Smart substation is an important foundation and support for a strong smart grid. It has the characteristics of informatization, automation and interaction, and is composed of advanced, reliable, energy-saving, environmental protection and integrated equipment. It uses a high-speed network communication platform as the basis for information transmission, automatically completes basic functions such as information collection, measurement, control, protection, metering and monitoring, and can support real-time automatic control of the power grid, intelligent adjustment, online analysis and decision-making, collaborative interaction, etc. App function.

At present, auxiliary production systems such as image monitoring, security guards, fire alarms, main transformer fire protection, water supply and drainage, heating and ventilation installed in substations are still small automation devices that are independent and do not have intelligent dialogue functions, forming multiple information islands. More manual work to pay attention to, understand and process the information of these devices does not meet the requirements of smart operation and management of smart substations. In addition to realizing the intelligent operation and management of the substation, verifying the actions and behaviors of the personnel in the station and reducing the human workload of the personnel in the station should also be another manifestation of the intelligent substation.

With the continuous deepening of the understanding of smart substations, new intelligent function requirements will continue to be put forward. From the perspective of intelligent management, build a common monitoring auxiliary control platform, integrate all auxiliary system functions, facilitate the expansion of new intelligent functions, and facilitate equipment management; standardize the information transmission methods and communication protocols of various auxiliary systems, It is conducive to unified management; through the information collation of the integrated auxiliary system, it is beneficial for remote personnel to fully control the situation in the station and improve the quality of supervision.

The Internet of Things technology realizes the integration of human society and physical systems, and realizes real-time management and control of equipment through automatic and real-time identification, positioning, tracking, monitoring and triggering of corresponding events. Using the Internet of Things technology, through the perception of the outside world, a sensor network monitoring network is constructed to implement all-round intelligent monitoring of factors that affect the operation of substations. On the basis of the sensor network monitoring platform, a set of intelligent monitoring and auxiliary control system common to the whole station can be established to integrate the system functions of the current auxiliary systems such as image monitoring, security guards, fire alarms, main transformer fire protection, heating and ventilation, etc., to achieve "intelligent Monitoring, intelligent judgment, intelligent management, and intelligent verification" requirements to realize intelligent operation and management of substations.

Intelligent monitoring refers to the all-round and multi-means real-time monitoring of factors affecting substation operation, automatic evaluation of substation operation status, and reduction of human workload. It is the premise of substation automation management.

Intelligent judgment refers to the evaluation of the operation status of the substation based on the monitoring data on the premise of reducing the participation of remote personnel, automatically judging various abnormal situations, generating a treatment plan, and forming a judgment result.

Intelligent management refers to the execution of judgment results, the realization of coordination and linkage between auxiliary systems, and the elimination of the impact of abnormal conditions. Form a report on the processing process of abnormal situations, and report the results to the remote centralized control center in time. Monitor the operating status of the auxiliary system and execute various commands from the remote centralized control center.

Intelligent verification is to verify the correctness of the inspection, operation, maintenance and other behaviors of the personnel in the station, and realize the interaction with the behavior of the personnel in the station to ensure the safety of personnel and avoid accidents.

Auxiliary production systems such as image monitoring, security guards, fire alarms, main transformer fire protection, water supply and drainage, heating and ventilation, etc. currently configured in substations are still independent small automation devices without intelligent dialogue functions, forming multiple information islands .

Contents of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art and provide a substation intelligent monitoring and auxiliary control system based on the Internet of Things, which can rely on the technical advantages of the Internet of Things to integrate the various auxiliary systems currently existing in the substation, thereby forming Unified substation intelligent monitoring and auxiliary control platform.

According to the technical solution provided by the utility model, the substation intelligent monitoring and auxiliary control system based on the Internet of Things includes a substation management host, which is characterized in that: the substation management host is connected to multiple auxiliary systems, and the substation management host is connected with the centralized control system at the same time The station management host is connected through the power communication network.

The auxiliary system refers to: primary equipment operating temperature online monitoring subsystem, arrester leakage current online monitoring subsystem, misoperation prevention subsystem, video image monitoring subsystem, perimeter anti-intrusion subsystem, tower anti-theft online monitoring subsystem , SF ₆ gas density online monitoring subsystem, fire smoke detection subsystem, power environment online monitoring subsystem or flood alarm subsystem.

The online monitoring subsystem of the operating temperature of the primary equipment includes: a first host, a data transmission base station, a wireless temperature sensor installed on the primary live equipment that needs to monitor the operating temperature, and a wireless temperature sensor and a cable arranged on the cable in the cable trench. The ambient temperature sensor of the ditch; the wireless temperature sensor and the ambient temperature sensor communicate with the data transmission base station through the wireless sensor network, and the data transmission base station is connected to the first host through the CAN bus or the RS-485 bus, and the first host and the substation management host connect.

The arrester leakage current on-line monitoring subsystem includes: the arrester on-line monitoring device communicates with the data transmission base station through a wireless sensor network, and the data transmission base station is connected to a second host through a CAN bus or an RS-485 bus, and the second host communicates with the substation management host connect.

The video image monitoring subsystem includes: a digital high-definition network camera connected to a substation management host through industrial Ethernet.

The tower anti-theft online monitoring subsystem includes: a screw tamper-proof sensor installed on the tower, a tower tilt sensor and a vibration sensor, the sensors form a wireless sensor network and communicate with a data transmission base station, and the data transmission base station is connected to the substation control host.

The SF ₆ gas density on-line monitoring subsystem includes: an infrared sensor installed on the monitoring site, and the infrared sensor is connected to the substation management host by means of wired RS-485 or CAN bus.

The utility model has the advantages of utilizing the technical characteristics of the Internet of Things and integrating various auxiliary systems currently existing in the substation to form a unified intelligent monitoring and auxiliary control platform for the substation.

Description of drawings

Fig. 1 is a system structure diagram of the utility model.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described. The substation intelligent monitoring and auxiliary control system based on the Internet of Things of the utility model is mainly composed of the following parts: centralized control station management host, substation management host, primary equipment operating temperature online monitoring subsystem, lightning arrester leakage current online monitoring subsystem, error prevention Operation subsystem, video image monitoring subsystem, perimeter anti-intrusion subsystem, tower anti-theft online monitoring subsystem, SF ₆ (sulfur hexafluoride) gas density online monitoring subsystem, fire smoke detection subsystem, dynamic environment online Monitoring subsystem, flood alarm subsystem.

As shown in Figure 1, the substation has a management host that integrates various auxiliary systems to realize unified intelligent monitoring and auxiliary control functions. The substation management host is connected with the centralized control station management host through the power communication network at the same time, sends operation information and receives control commands from the centralized control station management host.

The online monitoring system for the operating temperature of primary equipment in intelligent substations based on the Internet of Things is built on the basis of the DWT100 wireless digital temperature monitoring device. The DWT100 wireless digital temperature monitoring device adopts an ultra-low power The wireless sensor network (WSN) consumes a large duty cycle and has a great expansion space, which can meet the serial product application of the substation wireless platform. The subsystem consists of a host computer, several data transmission base stations, multiple wireless temperature sensors on the primary live equipment that need to monitor the operating temperature, and several wireless temperature sensors on the cables in the cable trench and the ambient temperature sensor in the cable trench. . The host will regularly poll each base station through the CAN bus or RS-485 bus, each base station will transmit the temperature data received to the host, the host will process and save the bus temperature data, and at the same time send the operating data information to the substation management host.

The arrester online monitoring device is a product of the same WSN platform that shares the control host and data transmission base station with the DWT100 wireless digital temperature monitoring device. The arrester online monitoring device also has leakage current sensors and voltage monitoring sensors. By analyzing the total leakage current of the arrester, the control host analyzes and compares the 3rd harmonic of the leakage current and the 3rd harmonic of the same-phase sequence voltage, and assists in analyzing the temperature and humidity information of the working environment of the arrester on site. Correctly send out the alarm signal, and realize the real-time online monitoring of the safety network of the arrester with high reliability.

The video image monitoring subsystem adopts a digital high-definition network camera, which is connected to the management host in the substation through industrial Ethernet, and connected to the centralized control station management host through the power communication network.

The anti-misoperation subsystem adopts the technical means of intelligent video recognition based on video images, and it shares the same camera resources as the video image monitoring subsystem.

The perimeter anti-intrusion subsystem is a new target-driven perimeter security system. It uses a variety of sensors to form a collaborative sensing network to achieve brand-new target recognition, multi-point fusion and collaborative sensing. The cooperative sensing network is composed of various sensors, and the subsystem is connected to the substation management host by means of wired RS-485 or CAN bus or industrial Ethernet.

The tower anti-theft online monitoring subsystem is a product of the same WSN platform that shares the control host and data transmission base station with the DWT100 wireless digital temperature monitoring device. The tower anti-theft online monitoring subsystem realizes the detection, intelligent identification and alarm of various destructive behaviors and potential dangers aimed at the tower, realizes all-round security and maintenance of the tower, eliminates hidden dangers of accidents, and meets the requirements of the tower installation unit for maintenance. Asset security ensures normal production needs. Using screw anti-demolition sensors, tower tilt sensors and vibration sensors, these sensor nodes installed on the tower will form a self-organizing network, and when knocking, dismantling the tower or tower tilt occurs, an alarm signal will be triggered and the alarm will be triggered. The data will be transmitted to the substation control host through the base station.

The SF ₆ gas density on-line monitoring subsystem uses an infrared sensor to detect SF 6 gas, and 24V active power supply. The detection nodes are installed in different locations according to the site conditions, and the address numbers are used to correspond to the site locations, and the leak location is realized according to the differences in the detection conditions of each SF6 detection node. The SF6 detection node is connected to the substation management host by way of wired RS-485 or CAN bus.

According to the actual installation, maintenance and monitoring of substations, combined with the trend of intelligent and networked substation management, and considering the reliability, scalability and controllability of the system, this system is based on existing products as the core and integrates existing products with the concept of Internet of Things technology. Mature products, by reading the alarm information of the fire detection system, and integrating video image recognition, ambient temperature sensor and other information, realize the linkage processing of intelligent detection, alarm and automatic foam fire extinguishing of substation fires. The fire and smoke detection subsystem is connected to the substation management host by way of wired RS-485 or CAN bus or industrial Ethernet.

This system realizes the intelligent remote control of substation air conditioners, dehumidifiers and heaters by reading the information of environmental temperature and humidity sensors, water immersion sensors and water leakage sensors, and comprehensive video image recognition, and automatically realizes water immersion and water leakage alarms Linked with drainage, the power environment online monitoring subsystem and flood alarm subsystem are connected to the substation management host by wired RS-485 or CAN bus or industrial Ethernet.

The utility model utilizes the technical advantages of the Internet of Things, adopts the wireless sensor network to realize on-line monitoring functions such as temperature, humidity, water immersion, and tower anti-theft of the substation, and uses wired 485 or CAN bus or industrial Ethernet bus to realize video monitoring and fire protection. Linkage, SF ₆ online monitoring, and control of various auxiliary systems can integrate various auxiliary systems currently existing in substations, thereby forming a unified intelligent monitoring and auxiliary control platform for substations.

Claims (7)

1. monitor and supplementary controlled system based on the intelligent substation of Internet of Things, comprise the substation management main frame, it is characterized in that: described substation management main frame connects a plurality of auxiliary systems, and the substation management main frame couples together by power telecom network with the concentrator station management host simultaneously.

2. intelligent substation monitoring and supplementary controlled system based on Internet of Things as claimed in claim 1 is characterized in that described auxiliary system is meant: primary equipment operating temperature on-line monitoring subsystem, leakage current of an arrester on-line monitoring subsystem, anti-misoperation subsystem, video frequency graphic monitoring subsystem, periphery intrusion preventing subsystem, the antitheft on-line monitoring subsystem of pylon, SF ₆Gas density on-line monitoring subsystem, fire cigarette sense detection subsystem, dynamic environment on-line monitoring subsystem or floods warning subsystem.

3. intelligent substation monitoring and supplementary controlled system based on Internet of Things as claimed in claim 2, it is characterized in that described primary equipment operating temperature on-line monitoring subsystem comprises: first main frame, transfer of data base station, be located at needs and monitor radio temperature sensor on the charging equipment of operating temperature, and be laid in the radio temperature sensor on the cable trough inner cable and the environment temperature sensor of cable trough; Described radio temperature sensor and environment temperature sensor are by wireless sensor network and transfer of data base station communication, and described transfer of data base station connects first main frame by CAN bus or RS-485 bus, and first main frame is connected with the substation management main frame.

4. intelligent substation monitoring and supplementary controlled system based on Internet of Things as claimed in claim 2, it is characterized in that described leakage current of an arrester on-line monitoring subsystem comprises: the lightning arrester on-Line Monitor Device is by wireless sensor network and transfer of data base station communication, described transfer of data base station connects second main frame by CAN bus or RS-485 bus, and second main frame is connected with the substation management main frame.

5. intelligent substation monitoring and supplementary controlled system based on Internet of Things as claimed in claim 2, it is characterized in that described video frequency graphic monitoring subsystem comprises: digitlization high definition IP Camera is connected with the substation management main frame by Industrial Ethernet.

6. intelligent substation monitoring and supplementary controlled system based on Internet of Things as claimed in claim 2, it is characterized in that the antitheft on-line monitoring subsystem of described pylon comprises: the screw tamper sensor of installing on the pylon, pylon inclination sensor and shock sensor, described transducer is formed wireless sensor network and transfer of data base station communication, and described transfer of data base station connects transformer station's main control system.

7. intelligent substation monitoring and supplementary controlled system based on Internet of Things as claimed in claim 2 is characterized in that described SF ₆Gas density on-line monitoring subsystem comprises: be installed on the on-the-spot infrared type transducer of monitoring, described infrared type transducer adopts the mode of wired RS-485 or CAN bus to be connected to the substation management main frame.

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