CN108494479B - Intelligent substation intelligent terminal light receiving sensitivity automatic measurement device and method thereof - Google Patents

Abstract

The invention relates to an intelligent terminal light receiving sensitivity automatic measuring device of an intelligent substation and a method thereof, comprising an SCD analysis module, a plurality of hard joints and a measuring channel, and the invention is characterized in that: the measuring channel is formed by sequentially connecting a GOOSE message sending module with an optical power attenuation module, an optical power measuring module and an optical port; the SCD analysis module is connected with the GOOSE message sending module; the optical port is connected with the optical port of the intelligent terminal to be tested through an optical fiber; the hard contact is connected with the hard contact of the intelligent terminal to be tested through a wire; the device can automatically measure the light receiving sensitivity of a plurality of tested light ports of the tested intelligent terminal, greatly improves the efficiency of measuring the light receiving sensitivity of the intelligent terminal of the intelligent substation, reduces the labor intensity, reduces the time of testing the light power of the intelligent substation, reduces the frequency of plugging and unplugging the optical fibers of the protection device of the intelligent substation, reduces the probability of damaging the optical fiber connector and the optical port, and prolongs the service lives of the optical port and the optical fiber.

Description

Intelligent substation intelligent terminal light receiving sensitivity automatic measurement device and method thereof

Technical field

The invention relates to the technical field of debugging of smart substations in power systems, and in particular to an automatic measuring device for light receiving sensitivity of smart terminals in smart substations and a working method thereof.

Background technique

With the development of smart grid, optical fiber has replaced most of the traditional cable wiring in smart substations. The optical reception sensitivity of smart terminals has become an important indicator to measure the performance of optical fiber secondary loops. Since there are a large number of smart terminals, optical ports and optical fibers in smart substations, measuring the light receiving sensitivity of smart terminals has become a arduous task in the debugging process of smart substations. If manual measurement is adopted, it will consume a lot of time and manpower and reduce the efficiency of debugging. At the same time, due to frequent plugging and unplugging of optical fibers during manual measurement, it is easy to cause damage to the optical port and fiber connector.

Contents of the invention

In view of this, the object of the present invention is to provide an automatic measuring device for light receiving sensitivity of an intelligent terminal in a smart substation and a working method thereof.

In order to achieve the above objectives, the present invention adopts the following technical solutions:

An automatic measuring device for optical reception sensitivity of smart terminals in smart substations, including an SCD analysis module, several hard contact opening interfaces and measurement channels, characterized in that: the measurement channel consists of a GOOSE message sending module and an optical power attenuation module, The optical power measurement module and the optical port are connected in sequence; the SCD analysis module is connected to the GOOSE message sending module; the optical port is connected to the optical port of the intelligent terminal to be tested through an optical fiber; the hard contact opening interface is connected through a wire Connect to the hard contact interface of the smart terminal under test.

Further, the optical ports are all replaceable optical modules, including input interfaces and output interfaces.

Further, the optical power attenuation module is also connected to a timing module. The timing module performs timing according to the set delay, and sends a signal to the optical power attenuation module after the timing is completed.

Further, the optical power measurement module is also connected to a display module, and the display module displays the optical power value of each measurement channel.

Further, the working method of the automatic measuring device for light receiving sensitivity of smart terminals in smart substations is characterized by: specifically including the following steps:

Step S1: Connect the optical port of the measurement system to the measured optical port of the intelligent terminal under test through an optical fiber, and connect the hard contact of the trip outlet of the intelligent terminal under test to the hard contact opening interface of the measurement system through wires;

Step S2: Import the SCD file into the SCD module and parse it;

Step S3: According to the SCD analysis result obtained by the SCD module, obtain the virtual terminal information of the smart terminal under test and configure the measurement device, send the GOOSE trip message through the test channel and receive the trip signal of the smart terminal through the hard contact;

Step S4: Control the tripping outlet hard contact of the intelligent terminal under test to close or disconnect according to the GOOSE trip message data sent by the optical port; when the trip virtual terminal data in the GOOSE trip message sent by the optical port is 1, the intelligent terminal under test The hard contact of the trip outlet is closed, that is, the hard contact of the measuring device is set to 1; when the trip virtual terminal data in the GOOSE trip message sent by the optical port is 0, the hard contact of the trip outlet of the intelligent terminal under test is disconnected, that is, the measurement The hard contact of the device is set to 0;

Step S5: If the hard contact input received by the measuring device changes with the change of the trip virtual terminal data in the GOOSE trip message sent by the optical port, the measuring device will be automatically lowered according to the step size and delay set by the measuring device. The light intensity of the optical port output interface module is cycled through steps S4 and S5; when the input of the hard contact of the measuring device no longer changes with the change of the trip virtual terminal data in the GOOSE trip message sent by the optical port, automatic measurement And record the light intensity of the output interface module of the optical port of the measurement system, which is the light receiving sensitivity of the measured optical port of the smart terminal under test.

Further, the step S3 specifically includes:

Step S31: According to the SCD analysis result obtained by the SCD module, obtain the virtual terminal information of the smart terminal under test and configure the measurement device;

Step S32: Send the GOOSE message information sent by each measurement channel to the GOOSE message sending module of the corresponding measurement channel;

Step S33: The GOOSE message sending module generates the GOOSE message of this measurement channel, and sends the GOOSE message to the optical power attenuation module in the form of an optical signal;

Step S34: The optical power attenuation module attenuates the optical intensity of the GOOSE message optical signal accordingly according to the attenuation step and delay set by the measurement device, and sends the attenuated GOOSE message optical signal to the optical power measurement module;

Step S35: The optical power measurement module automatically tests the received GOOSE message optical signal, and sends the test results to the display module for display. At the same time, the optical power measurement module sends the GOOSE message optical signal to the optical port of this measurement channel. ;

Step S36: The optical port sends the GOOSE trip message to the smart terminal under test through the optical fiber and receives the trip out signal of the smart terminal through the hard contact input interface.

Compared with the prior art, the present invention has the following beneficial effects:

The invention measures the light receiving sensitivity of multiple measured optical ports of the tested intelligent terminal, greatly improves the efficiency of measuring the light receiving sensitivity of the intelligent terminal in the intelligent substation, reduces labor intensity, and reduces the time for optical power testing of the intelligent substation. , reducing the number of fiber plugging and unplugging of smart substation protection devices, reducing the probability of damage to fiber connectors and optical ports, and extending the service life of optical ports and optical fibers.

Description of the drawings

Figure 1 is a schematic diagram of the present invention

In the picture: 1-SCD analysis module, 2-hard contact opening interface, 3-measurement channel, 4-GOOSE message sending module, 5-optical power attenuation module, 6-optical power measurement module, 7-optical port, 8-Display module, 9-Timing module.

Detailed ways

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

Please refer to Figure 1. This embodiment provides a smart substation smart terminal light receiving sensitivity automatic measurement device and its working method, including an SCD analysis module 1, a number of hard contact opening interfaces 2 and measurement channels 3, which is characterized by: The measurement channel is composed of a GOOSE message sending module 4, an optical power attenuation module 5, an optical power measurement module 6 and an optical port 7 connected in sequence; the SCD analysis module 1 is connected to the GOOSE message sending module 4; the optical port 7 is connected to the optical port of the smart terminal to be tested through an optical fiber; the hard contact opening interface 2 is connected to the hard contact of the smart terminal to be tested through a wire;

In an embodiment of the present invention, further, the optical port 7 is a replaceable optical module, including an input interface and an output interface. The wavelengths of the replaceable optical modules include: 850nm, 1310nm, 1270nm, and 1330nm.

In an embodiment of the present invention, further, the optical power attenuation module 5 is also connected to a timing module 9. The timing module 9 performs timing according to the set delay, and sends a signal to the optical power attenuation module after the timing is completed. module.

In an embodiment of the present invention, further, the optical power measurement module 6 is also connected to a display module 8, and the display module displays the optical power value of each measurement channel.

In an embodiment of the present invention, further, the working method of the automatic measuring device for light receiving sensitivity of an intelligent terminal in a smart substation is characterized by: specifically including the following steps:

Step S1: Connect the optical port of the measurement system to the measured optical port of the intelligent terminal under test through an optical fiber, and connect the hard contact of the trip outlet of the intelligent terminal under test to the hard contact opening interface of the measurement system through wires;

Step S2: Import the SCD file into the SCD module and parse it;

Step S3: According to the SCD analysis result obtained by the SCD module, obtain the virtual terminal information of the smart terminal under test and configure the measurement device, send the GOOSE trip message through the test channel and receive the trip signal of the smart terminal through the hard contact;

Step S4: Control the tripping outlet hard contact of the intelligent terminal under test to close or disconnect according to the GOOSE trip message data sent by the optical port; when the trip virtual terminal data in the GOOSE trip message sent by the optical port is 1, the intelligent terminal under test The hard contact of the trip outlet is closed, that is, the hard contact of the measuring device is set to 1; when the trip virtual terminal data in the GOOSE trip message sent by the optical port is 0, the hard contact of the trip outlet of the intelligent terminal under test is disconnected, that is, the measurement The hard contact of the device is set to 0;

Step S5: If the hard contact input received by the measuring device changes with the change of the trip virtual terminal data in the GOOSE trip message sent by the optical port, the measuring device will be automatically lowered according to the step size and delay set by the measuring device. The light intensity of the optical port output interface module is cycled through steps S4 and S5; when the input of the hard contact of the measuring device no longer changes with the change of the trip virtual terminal data in the GOOSE trip message sent by the optical port, automatic measurement And record the light intensity of the output interface module of the optical port of the measurement system, which is the light receiving sensitivity of the measured optical port of the smart terminal under test.

In an embodiment of the present invention, further, step S3 specifically includes:

Step S31: According to the SCD analysis result obtained by the SCD module, obtain the virtual terminal information of the smart terminal under test and configure the measurement device;

Step S32: Send the GOOSE message information sent by each measurement channel to the GOOSE message sending module of the corresponding measurement channel;

Step S33: The GOOSE message sending module generates the GOOSE message of this measurement channel, and sends the GOOSE message to the optical power attenuation module in the form of an optical signal;

Step S34: The optical power attenuation module attenuates the optical intensity of the GOOSE message optical signal accordingly according to the attenuation step and delay set by the measurement device, and sends the attenuated GOOSE message optical signal to the optical power measurement module;

Step S35: The optical power measurement module automatically tests the received GOOSE message optical signal, and sends the test results to the display module for display. At the same time, the optical power measurement module sends the GOOSE message optical signal to the optical port of this measurement channel. ;

Step S36: The optical port sends the GOOSE trip message to the smart terminal under test through the optical fiber and receives the trip out signal of the smart terminal through the hard contact input interface.

In order to allow ordinary skilled persons to better understand the technical solution of the present invention, the functions of the present invention are introduced in detail below in conjunction with the schematic diagram of the implementation of the present invention;

In one embodiment of the present invention, the SCD analysis module 1 can import and parse the smart substation system configuration file (SCD), obtain the virtual terminal information of the smart terminal under test in the SCD file, and configure the measurement device (including sending GOOSE message and sending port information), and sends the GOOSE message information sent by each measurement channel to the GOOSE message sending module 4 of the corresponding measurement channel; the GOOSE message sending module 4 can generate the GOOSE message of this measurement channel, The GOOSE message is sent to the optical power attenuation module 5 in the form of an optical signal; the optical power attenuation module 5 adjusts the light intensity of the GOOSE message optical signal according to the attenuation step and delay set by the measuring device. Attenuate, and send the attenuated GOOSE message optical signal to the optical power measurement module 6; the optical power measurement module 6 automatically measures the received GOOSE message optical signal, and sends the measurement results to the display module 8 for display. At the same time, the optical power measurement module sends the GOOSE message optical signal to the optical port of this measurement channel; connects the optical port 7 of the measuring device to the measured optical port of the intelligent terminal under test through an optical fiber, and hard contacts the trip outlet of the intelligent terminal under test. 2 After connecting with the hard contact input of the measuring device through a wire, the measuring device sends a GOOSE trip message to the smart terminal under test through optical port 7 and receives the trip output signal of the smart terminal through the hard contact 3 input interface.

In an embodiment of the present invention, if the light intensity of the optical port 7 sent by the measuring device is greater than the light receiving sensitivity of the measured optical port of the smart terminal under test, when the trip virtual terminal data in the GOOSE trip message sent by the measuring device is 1 , the trip outlet hard contact of the intelligent terminal under test is closed, that is, the hard contact of the measuring device is set to 1; when the trip virtual terminal data in the GOOSE trip message sent by the measuring device is 0, the trip outlet hard contact of the intelligent terminal under test is Disconnected, that is, the hard contact of the measuring device is set to 0.

In an embodiment of the present invention, if the input of the hard contact 3 received by the measuring device changes with the change of the trip virtual terminal data in the GOOSE trip message sent by the optical port, according to the step size and delay set by the measuring device, , automatically reduce the light intensity of the transmit port (TX) of the optical module of the measuring device, and then perform a displacement test of the trip virtual terminal data in the GOOSE trip message sent by the measuring device to confirm whether the hard contact opening received by the measuring device follows the light The trip virtual terminal data in the GOOSE trip message sent by the port changes.

In an embodiment of the present invention, when the input of the hard contact 3 received by the measuring device no longer changes with the change of the trip virtual terminal data in the GOOSE trip message sent by the optical port, the optical module of the measuring device is automatically measured and recorded. The light intensity of the transmit port (TX) is the light receiving sensitivity of the measured optical port of the intelligent terminal under test.

The above are only preferred embodiments of the present invention, and all equivalent changes and modifications made in accordance with the patentable scope of the present invention shall fall within the scope of the present invention.

Claims (3)

1. A method for automatically measuring the light receiving sensitivity of a smart terminal in a smart substation, including an automatic measuring device for the light receiving sensitivity of a smart terminal in a smart substation. The device for automatically measuring the light receiving sensitivity of a smart terminal in a smart substation includes an SCD analysis module, a number of hard contact opening interfaces and A measurement channel, characterized in that: the measurement channel is composed of a GOOSE message sending module, an optical power attenuation module, an optical power measurement module, and an optical port connected in sequence; the SCD analysis module is connected to the GOOSE message sending module; so The optical port is connected to the optical port of the intelligent terminal under test through an optical fiber; the hard contact opening interface is connected to the hard contact interface of the intelligent terminal under test through a wire; The optical ports are all replaceable optical modules, including input interfaces and output interfaces; Specifically, it includes the following steps: Step S1: Connect the optical port of the measurement system to the measured optical port of the intelligent terminal under test through an optical fiber, and connect the hard contact of the trip outlet of the intelligent terminal under test to the hard contact opening interface of the measurement system through wires; Step S2: Import the SCD file into the SCD module and parse it; Step S3: According to the SCD analysis result obtained by the SCD module, obtain the virtual terminal information of the smart terminal under test and configure the measurement device, send the GOOSE trip message through the test channel and receive the trip signal of the smart terminal through the hard contact; Step S4: Control the tripping outlet hard contact of the intelligent terminal under test to close or disconnect according to the GOOSE trip message data sent by the optical port; when the trip virtual terminal data in the GOOSE trip message sent by the optical port is 1, the intelligent terminal under test The hard contact of the trip outlet is closed, that is, the hard contact of the measuring device is set to 1; when the trip virtual terminal data in the GOOSE trip message sent by the optical port is 0, the hard contact of the trip outlet of the intelligent terminal under test is disconnected, that is, the measurement The hard contact of the device is set to 0; Step S5: If the hard contact input received by the measuring device changes with the change of the trip virtual terminal data in the GOOSE trip message sent by the optical port, the measuring device will be automatically lowered according to the step size and delay set by the measuring device. The light intensity of the optical port output interface module is cycled through steps S4 and S5; when the input of the hard contact of the measuring device no longer changes with the change of the trip virtual terminal data in the GOOSE trip message sent by the optical port, automatic measurement And record the light intensity of the output interface module of the optical port of the measurement system, which is the light receiving sensitivity of the measured optical port of the smart terminal under test; The step S3 specifically includes: Step S31: According to the SCD analysis result obtained by the SCD module, obtain the virtual terminal information of the smart terminal under test and configure the measurement device; Step S32: Send the GOOSE message information sent by each measurement channel to the GOOSE message sending module of the corresponding measurement channel; Step S33: The GOOSE message sending module generates the GOOSE message of this measurement channel, and sends the GOOSE message to the optical power attenuation module in the form of an optical signal; Step S34: The optical power attenuation module attenuates the optical intensity of the GOOSE message optical signal accordingly according to the attenuation step and delay set by the measurement device, and sends the attenuated GOOSE message optical signal to the optical power measurement module; Step S35: The optical power measurement module automatically tests the received GOOSE message optical signal, and sends the test results to the display module for display. At the same time, the optical power measurement module sends the GOOSE message optical signal to the optical port of this measurement channel. ; Step S36: The optical port sends the GOOSE trip message to the smart terminal under test through the optical fiber and receives the trip out signal of the smart terminal through the hard contact input interface. 2. A method for automatically measuring light receiving sensitivity of smart terminals in smart substations according to claim 1, characterized in that: the optical power attenuation module is also connected to a timing module, and the timing module performs the measurement according to the set delay. Timing, and after the timing is over, a signal is sent to the optical power attenuation module. 3. A method for automatically measuring light receiving sensitivity of smart terminals in smart substations according to claim 1, characterized in that: the optical power measurement module is also connected to a display module, and the display module performs the optical power value measurement on each measurement channel. show.