A Novel Analytic Method for Power System Alarm Processing Employing Topological Description

2019 ◽  
Author(s):  
Biao Xu ◽  
Xianggen Yin ◽  
Shuai Pang ◽  
Xin Yin
Keyword(s):  
Power System ◽  
Analytic Method ◽  
Topological Description ◽  
Alarm Processing

scholarly journals An Analytic Method for Power System Fault Diagnosis Employing Topology Description

Energies ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1770 ◽  
Author(s):  
Biao Xu ◽  
Xianggen Yin ◽  
Dali Wu ◽  
Shuai Pang ◽  
Yikai Wang
Keyword(s):  
Fault Diagnosis ◽  
Power Systems ◽  
Power System ◽  
Analytic Method ◽  
Integer Programming Problem ◽  
Protective Devices ◽  
Cooperative Relationship ◽  
Abnormal Operation ◽  
Power Recovery ◽  
Relationship Of

When a fault occurs in a power system, fault section estimation is the primary premise for troubleshooting and power recovery, and an effective fault diagnosis system will play a big role in decision making. However, the topology information is not well employed in existing fault diagnosis methods, and it is complex and time consuming to analyze the relationship between the protective devices and the sections. In this paper, a novel analytic method which employs topology description is proposed for fault diagnosis. The topology descriptions of the sections and the protective devices are firstly established according to the network structure, and based on which the operating logic and the cooperative relationship of the protective devices can be easily analyzed by matrix operation. Considering the factors of logic error and communication error, the fault diagnosis problem is formulated as an integer programming problem and can be solved by intelligent algorithm. The case studies of different power systems show that the proposed method can quickly identify the fault section, even with the abnormal operation or error alarm of protective devices.

The Study of Intelligent Processing Frame to Alarms in Monitoring Center

2012 ◽  
Vol 614-615 ◽  
pp. 1008-1012
Author(s):  
Zhi Jie Zhu ◽  
Jun Li ◽  
Jian Yong Liu ◽  
Hong Cheng Jiang
Keyword(s):  
Power System ◽  
Processing System ◽  
Intelligent Diagnosis ◽  
Intelligent Processing ◽  
Foundation Treatment ◽  
Monitoring Center ◽  
Alarm Processing

With the build of Monitoring Center in our country, a great of signals are uploaded from many substations which are located on every corner. When an abnormal or a grid fault in Power System happens, lots of signals come out, then many operators on duty can’t often react quickly and judge the fault accurately.Recently，more and more scholars begin studying intelligent alarm processing system. In this paper, by analyzing signals characters and SCADA network of Monitoring Center, an intelligent processing frame to alarms in monitoring center is provided, the frame includes three layers named signals foundation treatment layer, signals connecting and sharing layer, signals intelligent diagnosis layer. Now the frame has been implemented successfully in Monitoring Center of our company. At the same time, based on an virtual signals software, lots of devices alarms and grid faults are simulated, this intelligent processing system, which are built on the frame, always show the alarm tip quickly. Facts prove it attributes to grid fault judge for operators of Monitoring Center.

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