Simulation and Experimental Study of Low Voltage Power Line Carrier Communication
Bochuan Wang, Xixiu Wu, Yunfeng Hu, Chao Li
2019
IOP Conference Series: Materials Science and Engineering
This paper presents the simulation and experimental research of low-voltage power line carrier communication. The choice of communication method is an important factor in determining the communication quality of the communication system. For the communication mode of low-voltage power line as carrier, this paper prefers the direct sequence spread spectrum communication system as the communication method. In this paper, the simulation function is realized by establishing various parts of the
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... em simulation model. The simulation reflects the stability of the direct sequence spread spectrum communication system and has strong anti-interference ability. In this paper, the spread spectrum communication method is used to simulate low-voltage power line communication in the laboratory environment, and good results are also obtained. The direct sequence spread spectrum communication system is a better choice for low voltage power line carrier communication. Introduction With the continuous development of the national economy, the application of transmission cables and distribution cables has gradually increased, with a wide distribution and high value. In the current information age, real-time communication is a very important part of the power system. With the continuous development of modem technology and microelectronic technology, power line carrier communication has become possible. The application of power line communication benefits to reducing the additional erection of communication base station, realize the networking function and automatically detect the current grid environment. Therefore, achieving low-voltage power line carrier communication is a very advantageous communication method. This paper studies the simulation of communication methods for low-voltage power lines as carriers. Analysis of the Way of Low Voltage Power Line Carrier Communication Compared with analog communication, digital communication has good confidentiality and strong anti-interference ability, which is suitable for computer communication needs. Moreover, only the digital communication mode is adapted to the spread spectrum method in which digital coding is used as a spreading code. Therefore, the communication method selected in this paper is the spread spectrum communication. It is a transmission mode in which the bandwidth occupied by the transmission signal exceeds the minimum bandwidth required to transmit the information. The expansion of the bandwidth is performed by the modulo-2 superposition (time domain multiplication) of the baseband digital signal to be transmitted by the spreading code, and is received. The terminal receives with the same codeword, including de-spreading and recovery of information data to achieve the purpose of suppressing interference.
doi:10.1088/1757-899x/563/5/052098
fatcat:gtd6yzadije6bntbwn7rfycf3a