基于QPSO算法的电力载波通信自适应阻抗匹配.pdf

2282015,51(1)
Computer Engineering and4pp/ ications计算机工程与应用
基于QPSO算法的电力载波通信自适应阻抗匹配
宋建立,谭阳红,张海霞,贾庸,于辉
SONG Jianli, TAN Yanghong, ZHANG Haixia, JIA Yong, YU Hui
湖南大学电气与信息工程学院,长沙410082
College of Electrical and Information Engineering, Hunan University, Changsha 410082, China
SONG Jianli, TAN Yanghong, ZHANG Haixia, et al. Adaptive impedance matching for power line communication
based on quantum particle swarm optimization Computer Engineering and Applications, 2015, 51(1): 228-233
Abstract: Power Line Communication(PLC)technology is an important communication method which has been extensively
used in power system. In order to solve the impedance mismatch of PLC system, an adaptive impedance matching model
for power line communication based on Quantum Particle Swarm Optimization(QPSO)has been proposed. With the help
of II type matching network, PLC system can effectively eliminate matching restricted areas and get very accuracy
matching results and fast matching speed. Dealing with the asymmetrical region by the variation, an improved quantum
particle swarm optimization algorithm is proposed Compared with GA(Genetic Algorithm), QPSO is employed in the
impedance match because of fast convergence and satisfactory solutions. Test results indicate that the accuracy and the
of PLC system. Therefore, it will provide a perfect significance and application value in the engineering prdc/e smatch
velocity of impedance match for PLC have been greatly improved, which effectively overcome the impedance mismatch
Key words: adaptive impedance matching power line communication; quantum particle warm optimization; asymmetrical
varlation
摘要:电力載波通信技术是电力系统中的重要通信手段,针对电力載波通信中阻抗失配问题,提出一种基于量子
粒子群算法的电力载波通信自适应阻抗匹配模型。采用∏型网络结构,有效地消除了匹配禁区问题,能够快遠精准
地获得匹配结果。针对遺传算法收敛速度慢、优化精度不高的缺陷,对量子粒子群算法在非对称区间进行分层变异
改进处理,并将其应用于自适应阻抗匹配元件参数値的优化。测试结果表明此方策在阻抗匹配的精度和时间方面
都有很大的提高,解决了电力线阻抗变化的问题,满足了电力载波通信在精准性、高效性和实时性的要求,在工程实
践中具有一定的理论意义和应用价值。
关键词:自适应阻抗匹配;电力载波;量子粒子群算法;非对称变异
文献标志码:A中網分类号:TP202doi:10.3778iSS.1002-8331.1302-0135
了相当规模和很好的应用圆。在我国的电力系统通信
电力载波通信( Power Line Communication,PLC)中虽然光纤通信、微波通信、无线通信等都得到了相应
是利用输电线路作为信息传输媒介进行语音或数据传发展,但是电力载波技术凭借其自身通道可靠性高、投
输的一种长途通信方式,主要作为电力调度所与变电资少、见效快、与电网建设同步等优点,在电力系统生产
所、发电厂之间的信息传送工具,是电力系统特有的?管理与调度通信中具有很高的经济和社会效益。由于
种通信方式。电力线载波通信技术作为电力系统中应电力载波系统以电力线作为通信信道,载波信道容易受
用广泛的重要通信手段,经过儿十年的发展,已经达到到信号衰减、噪声和电磁干扰等影响,加上电力线组网
基金项口:国家自然科学基金(No.61102039,No.51107034);湖南省科技计刘项用(No.2011FJ3080);中央高校基金
作者简介:宋建立(1986一),男,硕十研究生,研究领域为分布式发电,智能电网等领域;谭阳红(1971ー),女,博十研究生导师
教授,主要研究方向:智能电网,智能与实时信息处理等领域:张海霞(1984-),女,博士研究生,主要研究方向:智能
电网等领域。E-mail:i1986love@163.com
收稿日期:2013-03-01修?日期:2013-06-04文章编号:1002-8331(2015)01-0228-06
CNKI络优先出版:2013-07-03,htp:/www.cnkinet/kcms/detail/112127.TP.20130703.1142.007.html