CN112468362A

CN112468362A - Automatic testing method and device for transformer substation

Info

Publication number: CN112468362A
Application number: CN202011310261.5A
Authority: CN
Inventors: 张晓悦; 冯善强; 胡春潮; 叶向前
Original assignee: Electric Power Research Institute of Guangdong Power Grid Co Ltd
Current assignee: Electric Power Research Institute of Guangdong Power Grid Co Ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-03-09

Abstract

The invention discloses a transformer substation automatic testing method and a device, wherein the method comprises the following steps: respectively creating communication protocols suitable for power precision testing and switch testing; responding to a test instruction of a user to select a test type, determining a communication protocol and connecting a test module corresponding to the test type according to the communication protocol; configuring the test channel attribute of the test module according to the test type and the communication protocol; setting test data of the test module in the test channel; and controlling the testing module to test the transformer substation to be tested through the communication protocol based on the testing data. The power precision testing module and the switch testing module are integrated together to realize automatic one-key testing, two kinds of equipment are combined with the closed loop linkage of a system through a substation automatic testing protocol, the whole closed loop of the automatic testing is realized, and the influence of human factors is reduced.

Description

Automatic testing method and device for transformer substation

Technical Field

The invention relates to the technical field of power automation, in particular to a transformer substation automatic testing method and device.

Background

Whether the automatic equipment or the automatic system of the transformer substation normally operates or not is really related to the benefits and safety of regional users, and along with the rapid development of the intelligent technology of the power grid in recent years, the requirements on the precision and the efficiency of the test of the automatic system of a first-line production unit are higher than those of the prior art due to the fact that the scale and the complexity of the automatic system of the transformer substation are today compared.

The existing testing method is to independently test the measurement and control equipment and the switch equipment respectively through a precision tester and a switch tester to form independent testing reports, and finally form complete testing reports in a manual synthesis mode. This test method lacks closed loop testing between different devices: because the test of each type of equipment is independent, under the condition that the testing personnel are insufficient, the test of each equipment is completed in series, and a plurality of equipment cannot be tested simultaneously, so that the precision of the test result is influenced.

Disclosure of Invention

The invention provides a transformer substation automatic test method and a device, wherein an electric power precision test module and a switch test module are integrated together to realize automatic one-key test, and the whole closed loop of the automatic test is realized by combining two devices and the closed loop linkage of a system through a transformer substation automatic test protocol.

The invention provides a transformer substation automatic testing method, which is applied to a transformer substation tester, wherein the transformer substation tester comprises the following components: the power precision testing module and the switch testing module; the method comprises the following steps:

respectively creating communication protocols suitable for power precision testing and switch testing;

responding to a test instruction of a user to select a test type, determining a communication protocol and connecting a test module corresponding to the test type according to the communication protocol;

configuring the test channel attribute of the test module according to the test type and the communication protocol;

setting test data of the test module in the test channel;

and controlling the testing module to test the transformer substation to be tested through the communication protocol based on the testing data.

Optionally, the step of selecting a test type in response to a test instruction of a user, determining a communication protocol, and connecting a test module corresponding to the test type according to the communication protocol includes:

connecting the test module by a transmission control protocol;

based on the communication protocol, sending a connection request message to the test module;

and receiving a successful receiving message returned by the test module and confirming the connection state.

Optionally, the step of configuring the test channel attribute of the test module according to the test type and the communication protocol includes:

and if the test type is the power precision test, respectively configuring the signal type, the primary-secondary transformation ratio and the output type of the power precision test module according to the communication protocol of the power precision test.

Optionally, the step of setting test data in the test channel includes:

measuring output voltage information and current information in a test channel in sequence, wherein the voltage information comprises: voltage amplitude, voltage angle, voltage frequency and voltage type, the current information includes: current amplitude, current angle, current frequency, and current type;

and if the voltage type is direct current, rejecting a voltage angle and a voltage frequency associated with the direct current, and/or if the current type is direct current, rejecting a current angle and a current frequency associated with the direct current.

and if the test type is the switch test, respectively configuring the physical addresses and the IP of all interfaces of the equipment according to the communication protocol of the switch test.

Optionally, the step of testing data in the test channel includes:

selecting a test item from the switch module according to the test instruction;

and measuring the test information in the switch module according to the communication protocol of the switch test and the test items.

Optionally, the step of controlling, based on the test data, the test module to test the to-be-tested substation through the communication protocol further includes:

and acquiring the test state of the transformer substation to be tested through the communication protocol based on the test data.

In order to solve the above problem, an embodiment of the present application further discloses a substation automation test apparatus, including:

the system comprises a creating module, a testing module and a control module, wherein the creating module is used for respectively creating communication protocols suitable for power precision testing and switch testing;

the response module is used for responding to a test instruction of a user to select a test type, determining a communication protocol and connecting a test module corresponding to the test type according to the communication protocol, wherein the test module comprises: the power precision testing module and the switch testing module;

the configuration module is used for configuring the test channel attribute of the test module according to the test type and the communication protocol;

the setting module is used for setting test data in the test channel;

and the test module is used for controlling the test module to test the transformer substation to be tested through the communication protocol after the test data is set.

In a third aspect, an embodiment of the present application provides an electronic device, including a processor and a memory, where the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the steps in the method as provided in the first aspect are executed.

In a fourth aspect, embodiments of the present application provide a storage medium, on which a computer program is stored, where the computer program, when executed by a processor, performs the steps in the method as provided in the first aspect.

According to the technical scheme, the invention has the following advantages:

the invention establishes communication protocols suitable for power precision test and switch test respectively; responding to a test instruction of a user to select a test type, determining a communication protocol and connecting a test module corresponding to the test type according to the communication protocol; configuring the test channel attribute of the test module according to the test type and the communication protocol; setting test data of the test module in the test channel; and controlling the testing module to test the transformer substation to be tested through the communication protocol based on the testing data. The power precision testing module and the switch testing module are integrated together to realize automatic one-key testing, and the two devices are combined with the closed loop linkage of the system through a substation automatic testing protocol to realize the integral closed loop of the automatic testing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a flowchart illustrating steps of a first embodiment of a substation automation test method according to the present invention;

fig. 2 is a flowchart illustrating steps of a second embodiment of a substation automation test method according to the present invention;

fig. 3 is a flowchart illustrating a third exemplary embodiment of a substation automation test method according to the present invention;

fig. 4 is a block diagram of an embodiment of a substation automation test apparatus according to the present invention.

Detailed Description

The embodiment of the invention provides a transformer substation automatic testing method and device, wherein an electric power precision testing module and a switch testing module are integrated together to realize automatic one-key testing, and two devices are combined with closed-loop linkage of a system through a transformer substation automatic testing protocol to realize integral closed-loop of automatic testing.

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In a first embodiment, referring to fig. 1, fig. 1 is a flowchart illustrating a first step of an automatic testing method for a substation according to a first embodiment of the present invention, and the automatic testing method is applied to a substation tester, where the substation tester includes: the power precision testing module and the switch testing module; the method may specifically comprise the steps of:

step S101, communication protocols suitable for power precision testing and switch testing are respectively established;

in the embodiment of the invention, the communication protocol of the two test modules is included, one is the communication protocol of the power precision test module, and the other is the communication protocol of the switch test module.

Step S102, responding to a test instruction of a user to select a test type, determining a communication protocol and connecting a test module corresponding to the test type according to the communication protocol;

in the embodiment of the invention, the communication adopts a TCP long connection mode to ensure the continuity of communication data.

In an optional embodiment of the present invention, the step of selecting a test type in response to a test instruction of a user, determining a communication protocol, and connecting a test module corresponding to the test type according to the communication protocol includes:

connecting the test module by a transmission control protocol;

In the embodiment of the present invention, a user selects a required substation test type according to an actual situation, then a substation tester matches a corresponding test type and a corresponding communication protocol according to a selection instruction of the user, and establishes a connection relationship with a test module according to the communication protocol, which specifically includes: and connecting the test module by a transmission control protocol mode, sending a connection information message to the test module, and finally receiving a successful receiving message returned by the test module so as to determine the connection state. In addition, whether the transmission of the request message or the connection of the success message is performed based on the communication protocol

In a special case, if the receiving is the receiving failure message, the connection request message is sent to the test module again until the receiving success message returned by the test module is received.

Step S103, configuring the test channel attribute of the test module according to the test type and the communication protocol;

step S104, setting the test data of the test module in the test channel;

and S105, controlling the testing module to test the transformer substation to be tested through the communication protocol based on the testing data.

In the embodiment of the invention, the test data can be used for testing the transformer substation to be tested by the test data for the same type of equipment, and the test result can be compared with the result of the historical test to check the difference of different test results of the same type of equipment.

In an optional embodiment of the present invention, the step of controlling, based on the test data, the test module to test the substation to be tested through the communication protocol further includes:

In the embodiment of the invention, based on the communication protocol, after the test of the automatic telephone of the transformer substation is started, the test pause can be controlled when the test of the transformer substation is finished, and the test state of the transformer substation to be tested can be acquired in the test process.

In the embodiment of the application, communication protocols suitable for power precision testing and switch testing are respectively established; responding to a test instruction of a user to select a test type, determining a communication protocol and connecting a test module corresponding to the test type according to the communication protocol; configuring the test channel attribute of the test module according to the test type and the communication protocol; setting test data of the test module in the test channel; and controlling the testing module to test the transformer substation to be tested through the communication protocol based on the testing data. The power precision testing module and the switch testing module are integrated together to realize automatic one-key testing, and the two devices are combined with the closed loop linkage of the system through a substation automatic testing protocol to realize the integral closed loop of the automatic testing.

In a second embodiment, please refer to fig. 2, which is a flowchart illustrating steps of a second embodiment of the substation automation testing method according to the present invention, specifically including:

step S201, communication protocols suitable for power precision testing and switch testing are respectively established;

step S202, selecting a test type in response to a test instruction of a user, determining a communication protocol and connecting a test module corresponding to the test type according to the communication protocol;

step S203, if the test type is the power precision test, respectively configuring the signal type, the primary-secondary transformation ratio and the output type of the power precision test module according to the communication protocol of the power precision test;

in the embodiment of the present invention, if it is determined that the test type is the power accuracy test, the power accuracy test module is connected and the channel attributes of the power accuracy test module, including the signal type, the primary-secondary transformation ratio, the output type, etc., are configured according to the communication protocol of the power accuracy test.

It should be noted that, in the present embodiment, a communication protocol format for connecting the power accuracy testing module is described as follows: the network communication comprises IP and ports, the communication interface is described by adopting XML and follows the grammar regulation of XML1.0, the message is easy to read, a node-division mode is adopted, the meaning is clear, and the encoding adopts UTF-8.

The power precision test module can be divided into 4 sub-modules according to the functional division: a connection communication sub-module, a test sub-module, a control sub-module and a configuration sub-module. Each sub-module has a respective tag name: the label of the Connection communication module is < Connection > </Connection >, the label of the Control module is < Control > </Control >, the label of the Test module is < Test > </Test >, and the label of the configuration module is < configuration > </configuration >. Meanwhile, the interface design is labeled as follows: < Params > </Params >, which means that the label contains a sub-label, and the label is identified by an id attribute or a name attribute, wherein the label contains a value attribute value; < Param > </Param > indicates that the tag is a sub-tag and contains the following attributes: name, dataType, where the dataType attribute is fixed to a type that describes the tag value: int, float, string.

In concrete realization, to connecting the electric power precision test module stage, involve connecting the communication submodule group, its work flow and principle are: connecting with a connection communication sub-module by adopting a network cable and transmission control protocol mode, sending a connection request message, returning a connection state message by precision test, and carrying out subsequent steps after connection is successful, namely:

and (3) sending:

receiving:

(ii) successfully connecting

② connection failure

</Connection>

And the parameters are as follows:

after the stage of connecting the power precision testing module is completed, the stage of testing channel attribute of the power precision testing module is entered, at this time, a testing sub-module is involved, the working flow and the principle of the testing sub-module are the channel attribute of the power precision testing module, including signal type, primary and secondary transformation ratio, output type and the like, after the matching is completed, the following steps can be carried out, namely:

and (3) sending:

receiving:

</config>

and the parameters are as follows:

step S204, sequentially measuring output voltage information and current information in a test channel, wherein the voltage information comprises: voltage amplitude, voltage angle, voltage frequency and voltage type, the current information includes: current amplitude, current angle, current frequency, and current type;

step S205, if the voltage type is a direct current voltage, rejecting a voltage angle and a voltage frequency associated with the direct current voltage, and/or if the current type is a direct current, rejecting a current angle and a current frequency associated with the direct current;

in concrete realization, accomplish after the configuration power accuracy test module stage, get into the test module data phase that sets up power accuracy test module, involve the test submodule group this moment, its work flow and principle are the voltage and current volume of setting up power accuracy test module output to the concrete content of all test scripts all accomplishes in this submodule group, after the matching is accomplished, can carry out follow-up step, promptly:

and (3) sending:

receiving:

</Setting>

and the parameters are as follows:

and S206, controlling the testing module to test the transformer substation to be tested through the communication protocol based on the testing data.

In concrete realization, accomplish and set up the test module data phase back of electric power accuracy test module, also will start automatically to the test of waiting to detect the transformer substation, this moment gets into control electric power accuracy test module stage, involves the control submodule group this moment, and its work flow and principle stop, state inquiry for control electric power accuracy test module, promptly:

and (3) sending:

receiving:

</Control>

and the parameters are as follows:

type	description of the invention
		0	Start test (temporarily without)
1	Stop testing
		2	Condition monitoring
3	State sequence triggering

In the embodiment of the application, communication protocols suitable for power precision testing and switch testing are respectively established; responding to a test instruction of a user to select a test type, determining a communication protocol and connecting a test module corresponding to the test type according to the communication protocol; configuring the test channel attribute of the test module according to the test type and the communication protocol; setting test data of the test module in the test channel; and controlling the testing module to test the transformer substation to be tested through the communication protocol based on the testing data. The power precision testing module and the switch testing module are integrated together to realize automatic one-key testing, two kinds of equipment are combined with the closed loop linkage of a system through a substation automatic testing protocol, the whole closed loop of the automatic testing is realized, and the influence of human factors is reduced.

In a third embodiment, please refer to fig. 3, which is a flowchart illustrating steps of a second embodiment of a substation automation testing method according to the present invention, specifically including:

step S301, communication protocols suitable for power precision testing and switch testing are respectively established;

step S302, selecting a test type in response to a test instruction of a user, determining a communication protocol and connecting a test module corresponding to the test type according to the communication protocol;

step S303, if the test type is the switch test, respectively configuring the physical addresses and the IP of all interfaces of the equipment according to the communication protocol of the switch test;

in the embodiment of the present invention, if it is determined that the test type is the switch test, the switch test module is connected and the channel attribute of the switch test module is configured according to the communication protocol of the switch test, including configuring the physical addresses and the IPs of all the interfaces of the device.

It should be noted that, in this embodiment, a communication protocol format for connecting the switch test module is described as follows: the network communication comprises IP and ports, the communication interface is described by adopting XML and follows the grammar specification of XML1.0, and the coding adopts UTF-8.

In concrete realization, to connecting the switch test module stage, involve connecting the communication submodule group, its work flow and principle are: adopting network cable and transmission control protocol mode to connect with the connection communication sub-module, sending the connection request message carrying equipment information, returning the connection state message by the switch module, and after the connection is successful, carrying out the following steps, namely:

and (3) sending:

receiving:

(ii) successfully connecting

② connection failure

</Connection>

And the parameters are as follows:

after the switch test module connection stage is completed, the test channel attribute stage of the switch test module is entered, at this time, a test sub-module is involved, the working process and principle of the test sub-module are the channel attribute of the configuration precision test module, including the physical addresses and the IP of all interfaces of the configuration equipment, after the matching is completed, the follow-up steps can be carried out, namely:

and (3) sending:

receiving:

</config>

and the parameters are as follows:

id/name	description of the invention
		Port1	The first interface of the device, the other interfaces and so on
MAC	Physical address of the interface configuration
		IP	IP configured by the interface

Step S304, selecting a test item from the switch module according to the test instruction;

step S305, measuring the test information in the switch module according to the communication protocol of the switch test and the test items;

in concrete realization, after accomplishing configuration switch test module stage, get into the test module data stage that sets up switch test module, involve the test submodule group this moment, its work flow and principle are all data that set up switch test module group output to the concrete content of all test scripts all accomplishes in this submodule group, after the matching is accomplished, can carry out follow-up step, use throughput test as an example, the sending process is:

and (3) sending:

receiving:

</Test>

and the parameters are as follows:

the throughput return process is:

and (3) sending:

the parameters are described as follows:

and S306, controlling the testing module to test the transformer substation to be tested through the communication protocol based on the testing data.

In concrete realization, accomplish and set up the test module data stage of switch test module after, also will start automatically to the test of waiting to detect the transformer substation, get into switch test module stage this moment, involve the control submodule group this moment, its work flow and principle are control power accuracy test module and stop, state inquiry, promptly:

and (3) sending:

receiving:

</Control>

and the parameters are as follows:

type	description of the invention
		0	Start test (temporarily without)
1	Stop testing
		2	Condition monitoring
3	State sequence triggering (only suitable for manual triggering)

Referring to fig. 4, a block diagram of an embodiment of a substation automation testing apparatus is shown, which includes the following modules:

a creating module 101, configured to create communication protocols suitable for power accuracy testing and switch testing, respectively;

a response module 102, configured to select a test type in response to a test instruction of a user, determine a communication protocol, and connect a test module corresponding to the test type according to the communication protocol, where the test module includes: the power precision testing module and the switch testing module;

in an optional embodiment of the present invention, the response module 102 comprises:

the connection submodule is used for connecting the test module in a transmission control protocol mode;

the sending submodule is used for sending a connection request message to the test module based on the communication protocol;

and the confirmation submodule is used for receiving the successful receiving message returned by the test module and confirming the connection state.

The configuration module 103 is configured to configure the test channel attribute of the test module according to the test type and the communication protocol;

in an optional embodiment, the configuration module 103 comprises:

and the precision test configuration submodule is used for respectively configuring the signal type, the primary-secondary transformation ratio and the output type of the power precision test module according to the communication protocol of the power precision test if the test type is the power precision test.

In an optional embodiment, the configuration module 103 comprises:

and the switch test configuration submodule is used for respectively configuring the physical addresses and the IP of all interfaces of the equipment according to the communication protocol of the switch test if the test type is the switch test.

A setting module 104, configured to set test data in the test channel;

in an alternative embodiment, the setup module 104 includes:

the information test submodule is used for sequentially measuring output voltage information and current information in the test channel, and the voltage information comprises: voltage amplitude, voltage angle, voltage frequency and voltage type, the current information includes: current amplitude, current angle, current frequency, and current type;

and the eliminating submodule is used for eliminating the voltage angle and the voltage frequency associated with the direct current voltage if the voltage type is the direct current voltage, and/or eliminating the current angle and the current frequency associated with the direct current if the current type is the direct current.

In an alternative embodiment, the setup module 104 includes:

the selection submodule is used for selecting a test item from the switch module according to the test instruction;

and the test information determining submodule is used for measuring the test information in the switch module by the test information according to the communication protocol tested by the switch and the test item.

And the test module 105 is used for controlling the test module to test the transformer substation to be tested through the communication protocol after the test data is set.

In an optional embodiment, the apparatus further comprises:

and the state acquisition module is used for acquiring the test state of the transformer substation to be tested through the communication protocol based on the test data.

For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.

An embodiment of the present invention further provides an electronic device, which includes a memory and a processor, where the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the substation automation test method according to any of the above embodiments.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by the processor, implements the substation automation testing method according to any of the above embodiments.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the apparatus described above may refer to the corresponding process in the foregoing method embodiment, and is not described herein again.

In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A transformer substation automatic test method is characterized by being applied to a transformer substation tester, and the transformer substation tester comprises: the power precision testing module and the switch testing module; the method comprises the following steps:

setting test data of the test module in the test channel;

2. The substation automation test method according to claim 1, wherein the step of selecting a test type in response to a test instruction from a user, determining a communication protocol, and connecting a test module corresponding to the test type according to the communication protocol comprises:

connecting the test module by a transmission control protocol;

3. The substation automation test method of claim 2, wherein the step of configuring the test channel attributes of the test module according to the test type and the communication protocol comprises:

4. The substation automation test method of claim 3, wherein the step of setting test data in the test channel comprises:

5. The substation automation test method of claim 2, wherein the step of configuring the test channel attributes of the test module according to the test type and the communication protocol comprises:

6. The substation automation test method of claim 5, wherein the step of testing data in the test channel comprises:

selecting a test item from the switch module according to the test instruction;

7. The substation automation test method according to any one of claims 1 to 6, wherein the step of controlling the test module to test the substation to be tested through the communication protocol based on the test data further comprises:

8. A substation automation testing device, characterized by, includes:

the setting module is used for setting test data in the test channel;

9. An electronic device comprising a processor and a memory, the memory storing computer readable instructions that, when executed by the processor, perform the method of any one of claims 1-7.

10. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, performs the method according to any of claims 1-7.