CN106877498A - The method for diagnosing faults of regulation automatization equipment in a kind of power network - Google Patents

Abstract

The invention relates to a fault diagnosis method for regulating and controlling automation equipment in a power grid. The method includes a monitoring and control automation equipment state collection module, a control and control automation equipment failure analysis module, and a control and automation equipment failure alarm module; The fault analysis module performs fault diagnosis on the control automation equipment according to the state information data and obtains a fault diagnosis result; the control automation device fault alarm module is used to send the fault diagnosis result to the corresponding operation and maintenance personnel. The invention can quickly determine the equipment that has failed, avoids checking and repairing each equipment in the factory station one by one, and improves the efficiency and accuracy of failure analysis and judgment of the control automation equipment. According to the fault diagnosis result, the present invention can quickly determine and contact the required operation and maintenance personnel, which greatly improves the maintenance efficiency of faulty equipment.

Description

A Fault Diagnosis Method for Regulating and Controlling Automation Equipment in Power Grid

technical field

The invention belongs to the technical field of power grid control, and in particular relates to a fault diagnosis method for regulation and control automation equipment in a power grid.

Background technique

The regulation and control automation equipment in the regional power grid varies with the actual geographical location of the substation. Common control automation equipment includes: routers, vertical encryption machines, firewalls, industrial switches, remote machines, five-proof workstations, standby and dispatching systems, protection management machines, fault recorders, intelligent pressure plate monitoring machines, electric energy collection terminals, GPS devices , On-site management machine and so on. Various control automation equipment belong to different professional fields, and the maintenance personnel required in the operation and maintenance process are also different. This situation makes the maintenance work of control automation equipment require fault repair, on-site analysis, and operations supported by professionals in multiple fields This method lacks the method and means of pre-locating the fault range or faulty equipment, so the maintenance process is cumbersome, time-consuming, laborious and costly.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention provides a fault diagnosis method for control automation equipment in a power grid.

In order to realize the purpose of the present invention, the present invention has adopted following technical scheme:

A fault diagnosis method for regulating automation equipment in a power grid, the method comprising a state acquisition module of regulating automation equipment, a fault analysis module of regulating automation equipment, and a fault alarm module of regulating automation equipment;

The control automation equipment state acquisition module is used to obtain the state information data of the internal control automation equipment of each plant station in the power grid; the control automation equipment fault analysis module performs fault diagnosis on the control automation equipment according to the state information data and obtains the fault diagnosis Result; the control automation equipment fault alarm module is used to send the fault diagnosis result to the corresponding operation and maintenance personnel;

The fault diagnosis process is:

S1. It is found that there is an abnormality in the equipment in the power grid plant, find the main router of the plant according to the topology map, and judge whether the state of the main router is normal. If the state of the main router is normal, then use the subordinate node equipment of the main router as the current judgment Node equipment for fault analysis;

S2. If the state of the current judging node device is abnormal and there are secondary node devices, first analyze whether all the secondary node devices of the current judging node device are abnormal. If all the secondary node devices are abnormal, it means that the current judging node device is faulty and Affects all secondary node devices; if there is a normal device in the secondary node device, it means that the current judgment node device status information data collection error;

When the state of the current judging node device is abnormal and there is no secondary node device, then analyze whether the network port connected between the current judging node device and the upper-level device is normal, if the network port is normal, it means that the current judging node device is internally abnormal; if The abnormality of the network port means that the link between the current judging node device and the upper-level device is faulty and simultaneously checks whether the network port is closed;

When the state of the current judging node device is normal and there is a secondary node device, then use the secondary node device as the current judging node device and perform fault analysis according to the above method again;

S3. According to the above fault analysis process, it is summarized whether there is a fault in each control automation equipment and a fault diagnosis result is obtained.

Further, the state information data includes power supply state data and working state data of each control automation equipment.

Further, when the data collection of the equipment state information of the current judgment node is wrong, it is arranged to overhaul the control automation equipment state collection module.

Further, the fault diagnosis result includes the location of the fault and its scope of influence, the name of the corresponding faulty device, and the possible cause of the fault.

The beneficial effects of the present invention are:

(1) The present invention improves the efficiency and accuracy of failure analysis and judgment of control automation equipment, and can quickly determine the location of the failure and the scope of influence, and obtain the name of the corresponding failure equipment and possible failure causes without relying on the status alarm information of the equipment itself. The present invention can quickly determine and contact the required operation and maintenance personnel according to the fault diagnosis results, so as to repair the corresponding faulty equipment in time. Equipment maintenance efficiency.

Description of drawings

Fig. 1 is the fault diagnosis system on which the present invention is based.

Fig. 2 is a flowchart of the fault diagnosis of the present invention.

detailed description

Below in conjunction with embodiment technical solution of the present invention is made more specific description:

As shown in Figure 1, the fault diagnosis system based on the present invention includes a control automation equipment state acquisition module 1, a control automation equipment failure analysis module 2 and a control automation equipment failure alarm module 3;

The state acquisition module 1 of the control automation equipment utilizes ICMP protocol, SNMP protocol, IEC104 protocol, DL/T 645 agreement and other industrial standards or manufacturer's private collection protocol to obtain the state information data of the internal control automation equipment of each plant station in the power grid. The combination method is determined according to the equipment type and operation and maintenance personnel configuration. For example, ICMP protocol + SNMP protocol is used for dispatching switches, ICMP protocol + IEC104 protocol is used for telemotor combination, ICMP protocol and DL/T645 are used for electric energy collection terminals Protocol, for the vertical encryption machine combination, use the manufacturer's private SPING protocol + SNMP protocol. The state information data includes power supply state data and working state data of each control automation equipment; the control automation equipment failure analysis module 2 performs fault diagnosis on the control automation equipment according to the state information data and obtains a fault diagnosis result; The automation equipment fault alarm module 3 is used to send the fault diagnosis result to corresponding operation and maintenance personnel, such as dispatchers and maintenance personnel;

As shown in Figure 2, the fault diagnosis process is:

S1. It is found that there is an abnormality in the equipment in the power grid plant, find the main router of the plant according to the topology map, and judge whether the state of the main router is normal. If the state of the main router is normal, then use the subordinate node equipment of the main router as the current judgment Node equipment for fault analysis;

S2. If the state of the current judging node device is abnormal and there are secondary node devices, first analyze whether all the secondary node devices of the current judging node device are abnormal. If all the secondary node devices are abnormal, it means that the current judging node device is faulty and Affects all secondary node devices; if there is a normal device in the secondary node device, it means that the current judging node device status information data collection error needs to arrange data inspection or overhaul the control automation equipment status acquisition module 1;

When the state of the current judging node device is abnormal and there is no secondary node device, then analyze whether the network port connected between the current judging node device and the upper-level device is normal, if the network port is normal, it means that the current judging node device is internally abnormal; if The abnormality of the network port means that the link between the current judging node device and the upper-level device is faulty and simultaneously checks whether the network port is closed;

When the state of the current judging node device is normal and there is a secondary node device, then use the secondary node device as the current judging node device and perform fault analysis according to the above method again;

S3. According to the above fault analysis process, it is summarized whether there is a fault in each control automation equipment and a fault diagnosis result is obtained. The fault diagnosis result includes the location of the fault and its scope of influence, the name of the corresponding faulty device, and the possible cause of the fault.

Claims (4)

1. in a kind of power network regulation automatization equipment method for diagnosing faults, it is characterised in that：The method includes regulation automatization Equipment state acquisition module (1), regulation automatization equipment fault analysis module (2) and regulation automatization device failure alert mould Block (3)；

The regulation automatization equipment state acquisition module (1) is for obtaining each plant stand inside regulation automatization equipment in power network Status information data；The regulation automatization equipment fault analysis module (2) is automatic to regulating and controlling according to the status information data Change equipment carries out fault diagnosis and obtains fault diagnosis result；The regulation automatization device failure alert module (3) is for inciting somebody to action The fault diagnosis result is sent to corresponding operation maintenance personnel；

The failure diagnostic process is：

S1, find power network plant stand in have unit exception, the active router of the plant stand is found according to topological diagram, judge the main road by Whether device state is normal, if the active router is normal, section is judged as current with the downstream site equipment of the active router Point device carries out accident analysis；

S2, as described current decision node equipment state exception and there is secondary nodes equipment, first analyze current decision node equipment Secondary nodes equipment it is whether all abnormal, represent current decision node equipment if the secondary nodes equipment is all abnormal Failure and have influence on all secondary nodes equipment；Represent described if having normal device in the secondary nodes equipment currently to sentence Disconnected node device status information data collection mistake；

When the current decision node equipment state is abnormal and without secondary nodes equipment, then analyzes the current decision node equipment Whether the network port being connected with higher level equipment normal, if the network port normally if represent in current decision node equipment Portion's exception；Represent that the current decision node equipment and the link of higher level equipment break down if the network port is abnormal And check whether the network port is closed simultaneously；

Then it is current with the secondary nodes equipment when the current decision node equipment state is normal and has secondary nodes equipment Decision node equipment simultaneously carries out accident analysis in the manner described above again；

S3, collected according to above-mentioned malfunction analysis procedure and each regulation automatization equipment with the presence or absence of failure and obtaining fault diagnosis knot Really.

2. in power network as claimed in claim 1 regulation automatization equipment method for diagnosing faults, it is characterised in that：The state Information data includes the power supply state data and operating state data of each regulation automatization equipment.

3. in power network as claimed in claim 1 regulation automatization equipment method for diagnosing faults, it is characterised in that：Work as when described Preceding decision node status information of equipment data acquisition mistake, then arrange to examine regulation and control automation equipment state acquisition module Repair.

4. in power network as claimed in claim 1 regulation automatization equipment method for diagnosing faults, it is characterised in that：The failure Diagnostic result includes that failure occurs position and coverage, corresponding failure device name and possible failure cause.