基于改进粒子群优化算法的电力线通信多径传输模型参数辨识Parameter Identification of Multi-Path Transmission Model for Power Line Communication Based on Improved Particle Swarm Optimization
张旭辉;张礼勇;梁宵;
摘要(Abstract):
基于已有的电力线多径传输模型结构,以0.5~20MHz范围内的实际低压载波通信信道测量数据为样本,将改进粒子群优化算法应用于低压载波通信信道模型的多参数辨识,通过自适应改变惯性权重提高搜索效率,同时采用模拟退火算法并自适应调整退火温度,克服了基本粒子群算法容易发生早熟收敛的缺点。对路径数为4和18的信道模型进行参数辨识的结果表明:与遗传算法相比,改进的粒子群算法可加速收敛,缩短辨识时间,同时提高了拟合精度,克服了参数的分散性,所取路径数越多,拟合效果越好。
关键词(KeyWords): 低压电力线载波通信;粒子群优化;参数辨识;多径传输;模拟退火;遗传算法
基金项目(Foundation): 国家自然科学基金资助项目(60372104)~~
作者(Author): 张旭辉;张礼勇;梁宵;
Email:
DOI:
参考文献(References):
- [1]程晓荣,苑津莎,侯思祖,等.基于移动代理的宽带电力线通信网络管理模型研究[J].中国电机工程学报,2005,25(9):74-79.Cheng Xiaorong,Yuan Jinsha,Hou Sizu,et al.Research of management model based on mobile agent for broadband power line communication[J].Proceedings of the CSEE,2005,25(9):74-79(in Chinese).
- [2]刘晓胜,周岩,戚佳金.电力线载波通信的自动路由方法研究[J].中国电机工程学报,2006,26(21):76-81.Liu Xiaosheng,Zhou Yan,Qi Jiajin.Method study of automatic routing for power line communication[J].Proceedings of the CSEE,2006,26(21):76-81(in Chinese).
- [3]谢志远,耿煊,侯思祖.基于判决反馈的正交频分复用低压电力线通信信道估计的研究[J].中国电机工程学报,2005,25(23):66-70.Xie Zhiyuan,Geng Xuan,Hou Sizu.Channel estimation based on decision feedback for OFDM system in low-voltage power line communication[J].Proceedings of the CSEE,2005,25(23):66-70(in Chinese).
- [4]罗春风,程时杰,熊兰,等.基于多层感知器的低压电力线时变信道非线性均衡方法[J].中国电机工程学报,2005,25(4):71-75.Luo Chunfeng,Cheng Shijie,Xiong Lan,et al.A nonlinear equalization method based on multiplayer perceptron for OFDM power line communication[J].Proceedings of the CSEE,2005,25(4):71-75(in Chinese).
- [5]郭静波,Cioffi J M.配电网多用户通信中的动态频谱管理[J].中国电机工程学报,2004,24(11):7-11.Guo Jingbo,Cioffi J M.Dynamic spectrum management of multi-user communications over power distribution networks[J].Proceedings of the CSEE,2004,24(11):7-11(in Chinese).
- [6]翟明岳,曾庆安.低压电力线通信信道的马尔柯夫特性研究[J].中国电机工程学报,2007,27(22):116-121.Zhai Mingyue,Zeng Qing’an.Markov characterization of LV power line communications systems channels[J].Proceedings of the CSEE,2007,27(22):116-121(in Chinese).
- [7]刘海涛,张保会,谭伦农.低压电网500kHz-10MHz频段噪声特性研究及信道容量估算.电网技术,2004,28(3):69-73.Liu Haitao,Zhang Baohui,Tan Lunnong.Study on noise characteristics of low voltage power networks in frequency region from500kHz-10MHz and estimation[J].Power System Technology,2004,28(3):69-73(in Chinese).
- [8]郑涛,杨晓宪,张保会.低压电网在1-30MHz频段的阻抗测量与特性分析[J].电网技术,2005,29(19):50-54.Zheng Tao,Yang Xiaoxian,Zhang Baohui.The characteristics analysis for impedance in1-30MHz band[J].Power System Technology,2005,29(19):50-54(in Chinese).
- [9]邱关源.电路[M].北京:高等教育出版社,1990:115-118.
- [10]张在玲,韩富春,朱永利,等.非均匀传输特性的低压电力线载波传输模型[J].电工技术学报,2004,19(4):107-110(in Chinese).Zhang Zailing,Han Fuchun,Zhu Yongli,et al.The carrier wave communication transmission model of low-voltage power line based on the uneven transmission characteristics[J].Transactions of China Electrotechnical Society,2004,19(4):107-110(in Chinese).
- [11]吕锋,吕国远.低压电力线通信信道模型[J].电力系统通信,2004,12(12):30-32.LüFeng,,LüGuoyuan.Channel model of the low voltage distribution network[J].Telecommunications for Electric Power System,2004,12(12):30-32(in Chinese).
- [12]Zimmermann M,Dostert K.A multipath model for the power line channel[J].IEEE Trans on Communication,2002,50(4):553-559.
- [13]邵方殷.我国特高压输电线路的相导线布置和工频环境[J].电网技术,2005,29(8):1-7.Shao Fangyin.The frequency environment for high voltage power line in China[J].Power System Technology,2005,29(8):1-7(in Chinese).
- [14]王根平,易灵芝.电力线通信系统中的信道训练和信道估计方案[J].电网技术,2007,31(3):35-37.Wang Genping,Yi Lingzhi.Channel training and estimating scheme for power line communication[J].Power system technology,2007,31(3):35-37(in Chinese).
- [15]舒辉,张有兵,文劲宇,等.低压载波通信信道模型的遗传算法多参数辨识[J].继电器,2005,33(6):29-31.Shu Hui,Zhang Youbing,Wen Jinyu,et al.GA multi-parameter identification of low-voltage power line carrier communication channel model[J].Relay,2005,33(6):29-31(in Chinese).
- [16]Kennedy J,Eberhart R C.Particle swarm optimization[C].IEEE International Conference on Neural Networks,1995.
- [17]康立山.非数值并行算法—模拟退火算法[M].北京:科学出版社,1997:180-195.