A Study on Impedance Matching Model of Power Line Communication

• Main Authors: Chun-Hung Liu, 劉俊宏
• Other Authors: Shih-Hsiumg Twu
• Format: Others
• Language: en_US
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/32410848707415490641

碩士 === 中原大學 === 電機工程研究所 === 95 === ABSTRACT In this thesis, we propose a suitable impedance matching model of power line communication. This system can measure power line impedance accurately to match the power line impedance. At first, the equivalent models of indoor power line and coupler are obtained by measuring the corresponding parameters in experiments. The equivalent models are used to simulate the indoor power line network by Simulink. Then, the equivalent impedance matching model is gained by Simulink also. The simulated matching model includes the data collecting model, data calculation model and matching model. Finally, the simulation results by changing power line impedance parameters are given to verify the improvement of efficiency by our proposed. The contributions of our research are as follows： (1) We propose an impedance arithmetic that enables us to measure power line impedance accurately. (2) We propose an impedance matching system model to solve the problem of impedance mismatch and improve efficiency of communication equipment in power line communication.