Design Of The Grid Monitoring System Based On Wireless Sensor Networks

With the rapid development of computer technology, network technology, andever-improving productivity, the concept of monitoring technology based on wirelesssensor network is slowly acknowledged by public and research application, thusbecoming a hot topic. Wireless sensor node, as the basic unit for grid surveillance andcontrol system with independent renewable energy penetration, is the key design inthis paper. In line with the low-cost, low energy, installation and development-friendly and communication-safe features of wireless sensor network, it hascorresponds to the practical needs of independent grid surveillance.This paper firstly introduces the overall structure and working principles of eachpart of Wind-Pv-Diesel-Battery hybrid power system. The Wind-Pv-Diesel-Batteryhybrid power system is a distributed, open which disperses its power generationdevices in power system. The power generation device can not only run independently,but also coordinate according to the real-time operation and power consumption ofeach part to make the power system secure, stable, high-quality, economic. Then, thispaper introduces the contrast and advantages of ZigBee technology and other wirelesscommunications technology. This article explicitly uses the ZigBee technology as thestandard for wireless communication networks, CC2430chip as the core processor ofthe sensor nodes. After collecting, analyzing and integrating relevant materials both athome and abroad, a grid surveillance and control system with a wireless sensornetwork core will be a preferable solution of long-distance surveillance, control andmanagement by combining ZigBee technological advantages and overall structure ofindependent grid. Then, the independent new energy supply network structure iscombined to give the overall structural design of wireless sensor monitoring network.The hardware design of sensor node, are divided into two kinds--dataacquisition nodes and sink node design. Acquisition node is mainly responsible forcollecting the real-time sampling data, sending and forwarding. Sink node has a largermemory used to manage the acquisition node and collect sample,centralized uploadedvia GPRS. Then, soft ware design is carried out based on function mentioned above.Concerning the rapid development of wireless sensor network technology inrecent years, this paper has concentrated on analyzing the characteristics of thesystem components as well as the methods, agreement used by the various parts of the function and communication. This paper also studies the information network ofremote detection system based on wireless sensor communication, analyzes itscommunication protocol and communication interface standard. Using wireless sensornetwork technology as the carrier, the data transmission of the electricity networknodes is realized, and gives a specific networking solutions.In this paper, the realization of communication between monitor network andfacilities with management and control functions has enabled the new energy gridaccess, energy balance scheduling control, intelligent power distribution function,weather forecast, and other functions to provide data to support the ultimatemonitoring system. Finally, the communication distance and stability tests are carriedout to demonstrate the practical value of the monitoring system.