含分布式电源工业电网故障状态判据识别分析  

Identification and Analysis of Fault State Criteria of Industrial Power Grid with Distributed Power Supply

作　　者：王博 黄高峰 Wang Bo;Huang Gaofeng(Department of Electrical Engineering,Luohe Technician College,Luohe Henan 462000,China)

机构地区：[1]漯河技师学院,河南漯河462000

出　　处：《现代工业经济和信息化》2024年第6期263-264,269,共3页Modern Industrial Economy and Informationization

摘　　要：为了进一步提高工业电网故障识别精度,设计了一种含分布式电源工业电网故障识别方法。分析馈线终端遥信信息在数据传输过程发生的畸变情况,采用同步相量测试装置来获取电流相位参数并判断电流的流动方向。研究结果表明:在区段(2)(9)产生故障情况时,形成短路故障状态存在较大差异;去除分布电源后,在检测节点中检测不出电流,能够判断故障发生位置。当节点发生畸变后,采用该方法修正实现准确定位,当电源侧区段发生故障且末端节点数据传输畸变时,通过信息修正能够实现准确定位。该故障算法和畸变修正方法满足可靠性要求。In order to further improve the accuracy of industrial power grid fault identification,an industrial power grid fault method including distributed power supply based on improved matrix algorithm was designed.The distortion of feeder terminal information during data transmission is analyzed.A synchronous phasor test device is used to obtain current phase parameters and determine current flow direction.The results show that there is a great difference in the short-circuit fault state when the fault occurs in section(2)and(9);After the distributed power supply is removed,no current can be detected in the detection node and the fault location can be determined.When the node is distorted,the method presented in this paper can be corrected to achieve accurate positioning.When the power side segment fails and the data transmission of the end node is distorted,accurate positioning can be achieved through information correction.The fault algorithm and distortion correction method in this paper meet the reliability requirements.

关 键 词：工业电网 分布式电源 矩阵算法 信息畸变 

分 类 号：TM732[电气工程—电力系统及自动化]