WO2015149594A1

WO2015149594A1 - Iec61850-based communication simulation method for partial discharge on-line monitoring device

Info

Publication number: WO2015149594A1
Application number: PCT/CN2015/072875
Authority: WO
Inventors: 袁志贤
Original assignee: 袁志贤
Priority date: 2014-04-04
Filing date: 2015-02-12
Publication date: 2015-10-08
Also published as: CN103984795A

Abstract

An IEC61850-based communication simulation method for a partial discharge on-line monitoring device. The method comprises the following steps: (1) starting an IEC61850/MMS communications service by simulation; (2) querying values of analog quantities, pre-stored in an SQL database, of an analysis on a partial discharge on-line monitoring intelligent electronic device to be simulated; (3) generating alarm rules by using preconfigured telemetering limits, and automatically computing corresponding alarm telesignalling states; (4) sending the analog quantities and the alarm telesignalling states in the form of an IEC61850 report; and (5) waiting for the next moment of data sending, and repeating step (2) until all pre-stored data is sent. A common PC can be used to simulate a partial discharge on-line monitoring apparatus, so as to conveniently and flexibly debug and verify advanced applications such as state evaluation on various backgrounds and primary devices, of an intelligent substation, needing to communicate with the on-line monitoring intelligent electronic device.

Description

Communication simulation method for partial discharge online monitoring equipment based on IEC61850

Technical field

The invention relates to a communication simulation method for a partial discharge online monitoring device based on IEC61850, which belongs to the field of application of a manufacturing message specification (MMS) of an international standard "Substation Communication Network and System" (IEC61850) in a power system substation automation system.

Background technique

The IEC61850 standard is the latest series of substation communication networks and systems specified by the International Electrotechnical Commission's TC57 Working Group to address new interoperability issues facing substation automation systems. The standard has been supported by most mainstream manufacturers at home and abroad, and has become the only unified standard in the field of substation automation in the world. Therefore, it has been widely used in the online monitoring of partial discharge intelligent electronic device communication.

With the promotion and application of online monitoring of primary equipment based on IEC61850 standard in intelligent substation, intelligent advanced applications such as primary equipment health assessment, which are important features of intelligent substation, are also gradually being applied in pilot applications. But even with the actual online monitoring of intelligent electronic devices, it is difficult to simulate the failure of a primary device, and it is generally difficult to have such conditions in the laboratory, which makes it difficult to track and discover problems of advanced applications. Another method is to use the universal IEC61850/MMS server-side simulation to manually generate telemetry and remote signaling to simulate the online communication of intelligent electronic devices. However, online monitoring of analog data sent by intelligent electronic devices, analog and remote The signal data is especially intrinsic logical relationship. This kind of logical relationship is the key to simulating a device failure. The general IEC61850/MMS server-side simulation is difficult to meet the corresponding requirements. So how simple is it? Efficient online monitoring of intelligent electronic device communication simulation, development and debugging of related advanced applications, and verification on the engineering test platform is an urgent problem to be solved.

Summary of the invention

In order to overcome the deficiencies in the prior art, the present invention provides a communication simulation method for a partial discharge online monitoring device based on IEC61850. The present invention can establish a partial discharge online monitoring intelligent electronic device simulation system using an ordinary PC to replace the actual online Monitor intelligent electronic devices, etc., to generate online monitoring data of the fault status of the equipment, to facilitate and flexibly debug and verify advanced applications such as equipment health assessment of the intelligent substation automation system.

In order to solve the above technical problems, the technical solution adopted by the present invention is:

A communication simulation method for a partial discharge online monitoring device based on IEC61850, comprising the following steps:

Step (1): simulate and start the IEC61850/MMS communication service;

Step (2): querying the partial discharge to be simulated in the SQL database to monitor the value of each analog quantity of the intelligent electronic device for one analysis;

Step (3): generating a warning rule by using a pre-configured telemetry violation limit, and automatically calculating a corresponding alarm remote signaling state;

Step (4): transmitting each analog quantity and alarm remote signal status in the form of IEC61850 report;

Step (5): Wait for the next data transmission time, repeat step 2 until all pre-stored data is transmitted.

The step (2) specifically refers to: using the SQL database's on-time column sorting search function to find out each analog data section of a partial discharge analysis.

The step (3) specifically refers to: automatically scanning the current analog value of the telemetry by using a pre-configured rule for generating an alarm, and comparing with the upper limit or the upper limit of each telemetry, and according to The comparison result sets an alarm for the corresponding upper limit remote communication or upper limit remote communication.

The invention has the beneficial effects that an ordinary PC can be used to establish a partial discharge online monitoring intelligent electronic device simulation system, which is used to replace the actual online monitoring of intelligent electronic devices, etc., to generate online monitoring data of the fault state of the primary device, and get rid of the intelligent substation once. Equipment health status rating The reliance on actual online monitoring of intelligent electronic devices during advanced application debugging, while simplifying the complexity of debugging these advanced applications before commissioning.

DRAWINGS

FIG. 1 is a schematic flow chart of a simulation method according to the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in FIG. 1 , it is a communication simulation method for a partial discharge online monitoring device based on IEC 61850, comprising the following steps: Step (1): Simulating and starting IEC 61850/MMS communication service; Step (2): Query pre-storing in SQL database The partial discharge to be simulated online monitors the value of each analog quantity of the intelligent electronic device for one analysis; step (3): generates the alarm rule by using the pre-configured telemetry violation limit, and automatically calculates the corresponding alarm remote signal status; step (4) : Send each analog quantity and alarm remote signal status in the form of IEC61850 report; Step (5): Wait for the next data transmission time, repeat step 2 until all pre-stored data is sent.

Online monitoring of analog data sent by intelligent electronic devices, analog and remote signal data is particularly intrinsic logical relationship, this logical relationship is the key to simulate a device failure. An analog data can be stored in a database that supports SQL in the event of a device failure. A lightweight in-process database such as SQLite can be used for simulation. Each telemetry information should include the serial number, logical device name, and data object reference. , telemetry values and other information.

Since the IEC61850 standard stipulates that the CID (Configured Intelligent Electronic Device Description) file contains the complete model information when the intelligent electronic device is put into operation, the simulation can use the existing CID file of the actual simulated device to parse and obtain all the information of the external communication of the device. Configure and start the IEC61850/MMS communication service.

Then use the SQL database search function to store all the telemetry data of a section in the database, and then use the pre-configured telemetry violation to generate the alarm rule, automatically scan the current analog value of the telemetry, and the telemetry The upper limit or the upper limit is compared, and the corresponding upper limit or upper limit remote message is set according to the comparison result, and each analog quantity and alarm remote signal status is sent in the form of IEC61850 report.

Then it is judged whether all the pre-stored data has been sent, and if the transmission is completed, the transmission is stopped; if there is still analog data to be sent, the waiting flow is entered, and the next failure simulation data is prepared.

The invention provides a communication simulation method for a partial discharge online monitoring device based on IEC61850, which can establish a partial discharge online monitoring intelligent electronic device simulation system using an ordinary PC to replace the actual online monitoring of intelligent electronic devices, etc., to generate a primary device failure. The online monitoring data of the state has got rid of the dependence of the actual on-line monitoring of intelligent electronic equipment during the debugging of the advanced application of the intelligent substation primary equipment health status evaluation, and simplified the complexity of the commissioning work before the commissioning of these advanced applications.

The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and touches without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

Claims

A communication simulation method for a partial discharge online monitoring device based on IEC61850, comprising the following steps:

Step (1): simulate and start the IEC61850/MMS communication service;

Step (2): querying the partial discharge to be simulated in the SQL database to monitor the value of each analog quantity of the intelligent electronic device for one analysis;

Step (3): generating a warning rule by using a pre-configured telemetry violation limit, and automatically calculating a corresponding alarm remote signaling state;

Step (4): transmitting each analog quantity and alarm remote signal status in the form of IEC61850 report;

Step (5): Wait for the next data transmission time, repeat step (2) until all pre-stored data is transmitted.
The IEC 61850-based partial discharge online monitoring device communication simulation method according to claim 1, wherein the step (2) specifically refers to: using a search function of the SQL database to find a simulation of a partial discharge analysis. Volume data section.
The IEC 61850-based partial discharge online monitoring device communication simulation method according to claim 1, wherein the step (3) specifically refers to: automatically generating a remote measurement by using a pre-configured remote detection limit to generate an alarm rule. The current analog value is compared with the upper limit or the upper limit of each telemetry, and the corresponding upper limit or upper limit remote alarm is set according to the comparison result.