Intelligent monitoring system design and implementation analysis of power distribution room

Ren Yunye Ankerui Electric Co.
, Ltd.
Shanghai Jiading 201801 Abstract: The distribution room, as the basic facility in the normal operation of the power grid, is in the core position of information exchange management in the information construction, which requires all the equipment in the distribution room to operate normally all the time, once a certain equipment fails, it poses a threat to data transmission, storage and system operation, it will affect the overall situation, if it can not be dealt with in time, it is more likely to damage the hardware equipment, resulting in immeasurable
。
However, in the actual operation of the power grid, it cannot be checked and inspected at any time, because this will not only increase the workload of the staff, but also bring huge costs to the power supply enterprises
.

Through the intelligent monitoring of the distribution room, these problems can be effectively solved, so the application of the intelligent monitoring system of the distribution room has gradually attracted people's attention
.

In order to make the distribution room work better, it is necessary to strengthen the research on the design and implementation of the intelligent monitoring system of the distribution room, monitor the operating status of the high-voltage distribution room in real time, and combine the offline inspection and emergency repair to jointly ensure the safe and stable operation
of the distribution room.

Keywords: power distribution room, information construction, intelligent monitoring system, safe and stable 1.
The structure of the system distribution room intelligent monitoring system is through the integrated application of Internet of Things technology, through the collection module to collect, integrate and process data information, so that each subsystem can be correspondingly linked and used
.

The system automatically collects and records information data and analyzes it, so as to transmit effective information to the staff, so that the staff can understand and grasp the situation of the power distribution room, and deal with and respond to
the hidden dangers in a timely manner.

1.
1 Video surveillance video surveillance refers to the audio and video material recorded and collected by the surveillance camera at the front end of the intelligent surveillance system through the signal line to the hard disk video recorder, and then transmitted to the monitoring platform
after the preliminary judgment and processing by the hard disk video recorder.

Based on this information, the staff will send monitoring instructions, and the surveillance camera will proceed to the next step
according to the instructions.

In addition, this system also has the function of automatic tracking of video and mobile operation, and when an alarm occurs, the surveillance camera in the area will carry out the corresponding linkage alarm
.

1.
2 Environmental monitoring environmental monitoring subsystem mainly for SF6 and oxygen concentration detection, if the concentration of SF6 is too high or the concentration of oxygen is too low, the subsystem will automatically issue alarm information, while opening the sound and light display, and when the leakage of SF6 ventilation and exhaust
.

The monitoring system will also record these automatic ventilation and exhaust conditions, and record the time of occurrence to facilitate future data query
.

The environmental monitoring module will also link the indoor temperature and humidity with the air conditioning monitoring to achieve the control linkage
of the two.

1.
3 Fire alarm device fire alarm subsystem was originally a separate set of subsystems, in the early stage of the distribution room design will be independently designed, can be the entire distribution station for fire safety monitoring and control, if a fire, the system will immediately send a signal for alarm, fire equipment PC can also be the distribution room at that time and the operating status of the system to display, in addition to it also has the function of
automatic dialing alarm.

Connecting this subsystem to the intelligent monitoring system of the power distribution room can also realize the networked monitoring and control function
of fire alarm.

1.
4 In addition to the above systems, there are air conditioning monitoring, access control management and other system modules
.

Air conditioning monitoring is used to monitor all kinds of types of air conditioning equipment, and has the function of adjusting the operating state of air conditioning such as detection and retry, thereby effectively improving its reliability and safety, and reducing the damage
caused by crash or shutdown.

Access control management is a module connected with the subsystem of surveillance video, which can greatly prevent the emergence of management vulnerabilities, and at the same time it is connected with the fire alarm for linkage, thus ensuring the smoothness
of the escape passage when a fire occurs.

Each monitoring module is controlled and data integrated by the monitoring room, and the interconnected systems work together to achieve the monitoring and management
of the distribution room.

2.
Distribution room intelligent monitoring system software design for the monitoring system, the system software is a very important part, which can be on the basis of the inspection equipment and receiving terminal reporting, complete the monitoring and analysis of the electrical equipment operation data of the distribution room, and can be in time to alarm when the equipment is stolen and the operation fails, so as to ensure the normal operation
of the distribution network.

In general, the modular design method is used to design the software system, which can keep the software structure simple and clear, so that the modification and debugging of the system is more convenient
.

The background software of the system is developed with VC6.
0/VS because of its good scalability, robustness and good structure
.

For the layering of the user interface, there are mainly the performance layer, the business layer, and the persistence layer, in which the performance layer can provide customers with the basic information of the business layer, and feedback the information obtained to the business layer; The business layer is responsible for processing the collected data, which can feedback the processed data to the customer and store the data; The persistence layer mainly saves data for persistence to avoid data loss
.

Divide the software by function, which can be divided into seven parts
.

The first is the user management function, which can divide
the management and management permissions under the different requirements of the user.

Among them, the management user of the monitoring center can operate
through the line distribution and environmental equipment belonging to the power distribution room.

The second is the system management function, which allows users to move, change, delete and increase objects such as distribution lines and sensors in the distribution room according to their actual requirements; The third is the data collection function, which includes many functions such as file upload, real-time monitoring, GPRS collection and timing collection; The fourth is the data analysis function, which can complete the data analysis, multiple analysis and comprehensive analysis of a single device according to the actual situation; The fifth is the system setting function, which mainly sets the parameters such as software interface style, device type, GPRS terminal type and communication protocol; The sixth is the logging function, which mainly records the running status of the system, user information and the historical log in the system is cleaned up regularly; The seventh is the function of opening up to the outside world, which can realize the data acquisition and data exchange
of other systems between the system and other equipment of the manufacturer.

3.
Acrel-2000E distribution room integrated monitoring system Acrel-2000E distribution room integrated monitoring system through the monitoring system platform and monitoring terminal, to achieve intelligent switch cabinet cabinet operation monitoring, high voltage switch cabinet live display, current and voltage and other load operation monitoring, bus bar temperature monitoring, cable temperature monitoring, environmental monitoring, harmful gas monitoring, security monitoring, heating and ventilation, access control, lighting, fan, dehumidifier, air conditioning control and
。
Realize the detection and equipment control of each data of the power environment, realize the optimization of the power environment, avoid the runaway operation environment leading to the operation failure of the distribution equipment, ensure the safety of maintenance personnel, extend the service life of the equipment, reduce the extensive management of the distribution room leading to high costs, and also realize the distributed remote management
of the power distribution power environment.

The system architecture consists
of the station control management layer, the network communication layer and the field device layer.

System function requirements: 1) Data acquisition and processing: real-time acquisition of on-site distribution room temperature, humidity, SF6, O2, O3, smoke, access control and electricity meter data through the spacer equipment; 2) Screen display: distribution room ambient temperature and humidity, gas (SF6, O2, O3, etc.
) content, distribution switch status, water leakage / immersion, smoke, access control, etc.
real-time information, video, real-time data of each measured value, various alarms and other information
.

3) Recording function: with temperature and humidity, gas (SF6, O2, O3, etc.
) content, voltage, current, power, electric energy and accidents, alarm events and other historical data storage functions, for query, analysis, printing
.

4) Alarm processing: The system can issue alarms
on events such as temperature, humidity, harmful gases, equipment failure or communication failure in the distribution room.

Four alarm modes can be provided: monitoring interface pop-up alarm; Real-time voice alarm, the system can issue voice alarm for all events; SMS alarm, you can send alarm information SMS
.

5) Curve analysis function: can be curvedThe line format displays the temperature and humidity of the monitoring system, gas (SF6, O2, O3, etc.
) content, voltage, current, power and other data in order to analyze its current operating status and related historical trends
.

6) Report statistics function: through the report, it is convenient to analyze the power supply system and the operating parameters of each circuit, and form a daily report, monthly report, electric energy statistics daily report, monthly report and annual report
.

7) Remote operation and maintenance function: Acrel-2000E distribution room integrated monitoring system can upload on-site collection information to the enterprise power operation and maintenance cloud platform, enterprise operation and maintenance personnel can remotely operate and maintain, build an intelligent operation and maintenance system, develop intelligent operation and maintenance applications, and realize the functions of intelligent analysis, fault prediction, intelligent inspection, intelligent dispatch, fault knowledge base construction and other functions of the distribution room, making the operation and maintenance of the distribution room more intelligent and efficient
.

4 Summarize the monitoring of the distribution room is of great significance to the normal operation of the power grid, in the process of power grid operation, the distribution room should be closely monitored to avoid the loss of the power grid safety and the interests of users when it fails, so it is necessary to strengthen the research on the design of the intelligent monitoring system, so as to grasp the information
of the distribution room in real time.

Acrel-2000E distribution room integrated monitoring system can not only display the environmental conditions of the distribution room, but also collect power meters, distribution circuit data, through network communication upload and other integrated management platform
.

The system realizes the analysis and processing of the collected data, displays the environmental monitoring in the distribution room in real time and generates various data reports, curves, graphs, etc.
, which is convenient for data analysis and research, and provides a real and reliable basis
for solving the problem of environmental monitoring in the distribution room.

Reference[1] Lou Zengyuan.
Research on intelligent distribution monitoring system design and key technology[D].
Hangzhou Dianzi University ,2012.
Zhang Jie, He Chunguang.
Application of intelligent distribution monitoring system in power distribution engineering[J].
Rural Electrification,2015,09:9-10.
Sun Bo.
Design and implementation analysis of intelligent monitoring system in distribution room[J].
Construction Engineering Technology and Design, 2017 (9)Author's introduction: Ren Yunye, male, currently working in Acquaray Electric Co.
, Ltd.
, the main research direction is substation, distribution room monitoring system
.