基于物联网的光伏发电系统故障诊断设计
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摘要
传统的光伏发电远程监测系统以单点数据采集为主,在融合过程中系统没有对单点数据进行区分,导致数据采集效率低,均衡性差。文章基于物联网技术,设计光伏远程数据监测传感器分布式矩阵,对传感器的原始数据进行区分量化融合处理,结合VXI局部总线技术和SCSI总线控制器对数据采集输出信道加以均衡控制。测试结果表明,文章设计的光伏远程监测数据采集系统,能实时准确地采集多通道数据,数据输出带宽较高,输出信道的均衡性较好,提高了光伏远程故障诊断数据的准确检测和分析能力。
PV power remote monitoring data is mainly collected by single point. In order to ensure efficiency, there is no distinction between single point data fusion process. Only by taking the idle state of monitoring channel as the standard, the data acquisition efficiency is low and the balance is poor. The design method of the remote monitoring data acquisition system for PV power generation based on the Internet of things is proposed. The technology of Internet of things is applied to design remote distributed data monitoring sensor for PV power generation, and distributed array is used to quantify and fuse raw data collected by sensors, and distinguish data types. The interface design of data acquisition channel is designed combined with VXI local bus technology. The SCSI bus controller is used to collect data and output channel equalization, and design the hardware of data acquisition instrument. The test results show that the PV power remote monitoring data acquisition using the system can accurately capture real-time multi-channel data to the monitoring data, the bandwidth of the output is high, the balance of acquisition of output channels is better, improve the accuracy of detection and analysis of PV power remote monitoring data.
PV power remote monitoring data is mainly collected by single point. In order to ensure efficiency, there is no distinction between single point data fusion process. Only by taking the idle state of monitoring channel as the standard, the data acquisition efficiency is low and the balance is poor. The design method of the remote monitoring data acquisition system for PV power generation based on the Internet of things is proposed. The technology of Internet of things is applied to design remote distributed data monitoring sensor for PV power generation, and distributed array is used to quantify and fuse raw data collected by sensors, and distinguish data types. The interface design of data acquisition channel is designed combined with VXI local bus technology. The SCSI bus controller is used to collect data and output channel equalization, and design the hardware of data acquisition instrument. The test results show that the PV power remote monitoring data acquisition using the system can accurately capture real-time multi-channel data to the monitoring data, the bandwidth of the output is high, the balance of acquisition of output channels is better, improve the accuracy of detection and analysis of PV power remote monitoring data.
引文
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[2]陈孟元.基于节点负载均衡的分布式光伏发电无线安全监控网络研究[J].电子测量与仪器学报,2016,30(1):92-99.
[3]Kumar A,Pooja R,Singh G K.Design and performance of closed form method for cosine modulated filter bank using different windows functions[J].International Journal of Speech Technology,2014,17(4):427-441.
[4]李乔木,傅质馨,袁越,等.基于可靠性分析的光伏发电系统监控网络拓扑结构设计[J].可再生能源,2014,32(9):1255-1260.
[5]王群,董文略,杨莉.基于Wasserstein距离和改进K-medoids聚类的风电/光伏经典场景集生成算法[J].中国电机工程学报,2015,35(11):2654-2661.
[6]Zhang H,Wang Z,Liu D A.Comprehensive review of stability analysis of continuous-time recurrent neural networks[J].IEEE Trans on Neural Networks and Learning Systems,2014,25(7):1229-1262.
[7]李寿强.基于模糊神经网络电力系统无功功率控制研究[J].电气应用,2012,31(8):32-34.
[8]陈素华.探究光通信中DOPSK信号的解调与传输性能[J].激光杂志,2016,36(9):115-117.
[9]张晓娜,高德东,刘海雄.一种新型光伏阵列多传感器故障检测定位方法[J].可再生能源,2016,34(2):166-173.
[10]胡义华,陈昊,徐瑞东,等.基于最优传感器配置的光伏阵列故障诊断[J].中国电机工程学报,2011,31(33):23-30.
[11]徐瑞东,陈昊,胡义华,等.基于高斯过程的光伏阵列故障定位[J].电工技术学报,2013,28(6):249-256.