Design Of An Iot-based Substation Auxiliary Equipment Monitoring And Control System

In the power system,as an extremely important part of the operation of electrical equipment,substation is of great significance in ensuring the safety and reliability of power supply to the grid,and its normal operation directly affects the safety and economic efficiency of the entire power system.The safe and stable operation of the substation depends on a large extent on the normal operation of the primary equipment in the substation,and the auxiliary equipment of the substation is an important part of ensuring the stable operation of the primary equipment,for which a set of Io T-based substation auxiliary equipment monitoring system is studied in this paper.The system can share data effectively in real time through Io T technology,and can be remotely monitored in the mobile app client and One Net cloud platform,which helps to eliminate information silos and facilitates the unified management of environmental data of substation auxiliary equipment.The IoT-based substation auxiliary equipment monitoring system designed in this paper includes both environmental monitoring and fire protection functions.Firstly,the DHT11 temperature and humidity sensor,MQ-2 smoke sensor and MQ-9flammable gas sensor are used to collect environmental data,and the GP2D12 infrared distance sensor is used to obtain the distance from the sensor to the window and determine the closing status of the window.Secondly,based on the collected environmental data information,the STM32 microcontroller will use different control strategies to achieve automatic control.When the indoor temperature is detected to be too high or the relative humidity is too high,the motor is driven to turn on the fan to reduce the temperature or humidity,when the smoke concentration is detected to be too high an alarm is issued and the window is closed,when the concentration of combustible gases is detected to be too high an alarm is issued and the window is opened.The EDP protocol is selected in the OneNet cloud platform to receive data from the ESP8266 Wifi module and the environmental data information of the substation auxiliary equipment,the status of the fan switches and the window closures are viewed remotely through the monitoring platform created in the cloud platform.App Inventor is used to develop a mobile client platform for the substation auxiliary equipment monitoring system,and the data obtained from the cloud platform is sent to the mobile client,so that the data can also be viewed remotely from the mobile client.After several stability tests and accident tests,the experimental results show that the system designed in this paper has good stability and reliability,and has a certain degree of practical value for the development of substation auxiliary equipment monitoring,achieving the original purpose of the design.