電力線通信與短距離無線通信混合組網研究
[Abstract]:The development of smart grid requires the construction of a reliable, stable, flexible and convenient smart grid architecture. Bi-directional, real-time and reliable communication network is an important part of smart grid. Power line communication and micro-power wireless communication are widely used in power system. Among them, power line communication does not need to be rewired, so it is convenient to install, but it has many noise sources and is greatly affected by load. Wireless communication is easy to install and not subject to load fluctuation, but it is vulnerable to environmental factors. The characteristic of poor penetration. Power line communication and wireless communication complement each other. In this paper, the hybrid network technology of power line communication and wireless communication based on relay forwarding is studied, and a relay communication module is designed and implemented, which has the function mode of power line communication and Zigbee wireless communication at the same time. The two communication modes can complement each other and are suitable for hybrid communication networking system. The relay communication module also has the function of analysis and calculation of link index RSSI for power line communication and wireless communication. Relay selection is a key problem in the field of cooperative communication, and the selection of relay nodes will affect the performance of the system. Therefore, an adaptive relay selection algorithm based on RSSI is proposed, which takes RSSI as the selection index of communication link. Intelligent selection of relay node and communication mode. A hardware test platform based on packet loss rate is built by using the completed relay communication module. The test results show that the relay communication module can adaptively select the relay node and communication mode according to the link communication quality by using the adaptive relay selection algorithm based on RSSI which improves the reliability of the hybrid communication system. Finally, in view of the data loss in the receiver due to data conflict, this paper presents a scheme of selecting PLC and wireless link based on node number, and combines the data of power line and wireless communication based on network layer. The MAC layer fusion technology between PLC and wireless communication is discussed.
【學位授予單位】:華北電力大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TN913.6;TN92
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