| 引用本文: | 刘耀湘,乐秀璠,顾欣欣.配电网故障区段判断和隔离的综合矩阵法[J].电力自动化设备,2006,(3):38-41 |
| .Synthesis matrix algorithm for fault section detection and isolation in distribution system[J].Electric Power Automation Equipment,2006,(3):38-41 |
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| 摘要: |
| 充分利用配电网的结构特点,在馈线终端单元(FTU)装置中设置2种工作模式。首先,根据网络中开关的连接关系和假定的正方向建立一个网络描述矩阵D,从FTU得到故障状态变量值构成馈线节点故障信息矩阵G,功率方向上相邻的2个故障状态变量值进行异或运算,修正D中的故障信息元素,得出故障判别矩阵P。依据P中值为1的元素在P矩阵的位置,轻易判断出故障区段的位置。算法直观,实时性、适用性强,并且同时发生多处故障时同样有效。 |
| 关键词: 配电网络,故障,定位,矩阵故障信息元素 |
| DOI： |
| 分类号:TM711 |
| 基金项目: |
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| Synthesis matrix algorithm for fault section detection and isolation in distribution system |
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LIU Yao-xiang LE Xiu-fan GU Xin-xin
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| Abstract: |
| A synthesis matrix algorithm for fault section detection and isolation in distribution system is presented,which makes full use of system's structural characteristics and sets two kinds of work patterns in FTU. The algorithm forms a network description matrix D on basis of the connections of switches and power flow directions between two adjacent switches. The fault state variables from FTU are used to form a fault information matrix G for feeder node. The XOR operations of two neighboring fault state variables in power direction revise fault information variables in matrix D to get fault judgment matrix P. According to the location of the variable,which is equal to 1,in matrix P,the fault section can be identified immediately and correctly. The synthesis matrix algorithm is direct,real-time and applicable,and works properly for multi simultaneous faults too. |
| Key words: distribution system,fault,locating,matrix fault information variable |
