CN109633332B - Automatic regular inspection method for equipment in power system and fault recording device - Google Patents
Automatic regular inspection method for equipment in power system and fault recording device Download PDFInfo
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Abstract
The application discloses an automatic regular inspection method and a fault recording device for equipment in a power system, wherein the regular inspection method comprises the following steps: the fault recording device respectively acquires first data to be detected and second data to be detected of one or more devices to be detected; one device to be detected corresponds to one first data to be detected and one second data to be detected; the data transmission carrier of the first data to be detected is different from the data transmission carrier of the second data to be detected; according to the first data to be detected and the second data to be detected, the fault recording device respectively determines the corresponding running state information of the equipment to be detected and stores the running state information; and when the fault recording device determines that the current time node is the regular detection time node, the fault recording device respectively obtains the detection results of the corresponding equipment to be detected according to the stored running state information. The method and the device can improve the scheduled inspection efficiency.
Description
Technical Field
The application relates to the field of power systems, in particular to an automatic regular inspection method and a fault recording device for equipment in a power system.
Background
In an electric power system, a protection device in the electric power system is subjected to a periodic inspection work, that is, a protection device is subjected to a scheduled inspection. In the regular inspection of the protection device, the planned inspection and maintenance of each equipment are standardized, so that the management of the equipment is in a controllable and in-control state, the fault occurrence rate of the equipment is reduced, the health level of the equipment is improved, and the safe, economic and reliable operation of unit equipment is ensured. Therefore, the regular inspection of the power grid protection device is an important guarantee for maintaining the safe and stable operation of the power grid.
At present, the regular inspection of most power supply units is completely operated by manpower, and a great deal of time and manpower are consumed. Therefore, it is desirable to design a method and apparatus for automatic scheduled inspection to improve the scheduled inspection efficiency.
Disclosure of Invention
In order to solve the above problem, an embodiment of the present application provides an automatic scheduled inspection method for a device in an electrical power system, including:
the fault recording device respectively acquires first data to be detected and second data to be detected of one or more devices to be detected; one device to be detected corresponds to one first data to be detected and one second data to be detected; the data transmission carrier of the first data to be detected is different from the data transmission carrier of the second data to be detected;
according to the first data to be detected and the second data to be detected, the fault recording device respectively determines the corresponding running state information of the equipment to be detected and stores the running state information;
and when the fault recording device determines that the current time node is the regular detection time node, the fault recording device respectively obtains the detection results of the corresponding equipment to be detected according to the stored running state information.
In one example, the determining, by the fault recording apparatus, the operating state information of the corresponding devices to be detected according to the first data to be detected and the second data to be detected includes:
the fault recording device determines corresponding first operation state information of the equipment to be detected according to the first data to be detected;
the fault recording device determines corresponding second operation state information of the equipment to be detected according to the second data to be detected;
the fault recording device compares whether the first running state information is the same as the second running state information, and records the first running state information or the second running state information under the condition that the first running state information is the same as the second running state information;
and under the condition that the first running state information is different from the second running state information, the fault recording device records the first running state information and the second running state information and records an abnormal state identifier in the running state information.
In one example, after the fault recording device respectively obtains the first data to be detected and the second data to be detected of the one or more devices to be detected, before the fault recording device respectively determines the operating state information of the corresponding devices to be detected according to the first data to be detected and the second data to be detected, the method further includes:
the fault recording device detects whether the first data to be detected contains at least one of a first condition parameter and a second condition parameter corresponding to the state data information;
when the first data to be detected contains at least one of the first condition parameter and the second condition parameter, the fault recording device determines corresponding operation state data according to at least one of the first condition parameter and the second condition parameter;
the first condition parameter is the putting-in and putting-out result of the pressing plate, and the second condition parameter is the opening amount and the opening amount of the belt detection equipment.
In one example, the step of respectively acquiring first to-be-detected data of one or more devices to be detected by the fault recording device specifically includes:
an acquisition device in the fault recording device receives a Generic Object Oriented GOOSE (Generic Object Oriented Substation Event) outlet message which is sent by a device to be detected and faces to a general Object;
the acquisition equipment sends the GOOSE outlet message to management equipment in the fault recording device through the switch;
the management equipment receives an MMS (manufacturing Message Specification) Message; wherein, the first data to be detected comprises: GOOSE egress messages and MMS messages.
In one example, the fault recording device obtains the detection results of the corresponding devices to be detected respectively according to the stored running state information, and the method includes the following steps:
the fault recording device respectively obtains corresponding third data to be detected of the equipment to be detected according to the stored running state information, and the third data to be detected comprises: one or more of the regular check sampling precision, the regular check input quantity, the regular check output quantity and the regular check inverter power supply output voltage; the operation state information includes: one or more of software version information, sampling precision, input quantity, output quantity and inverter power supply output voltage corresponding to the equipment to be detected;
respectively comparing the third data to be detected with the corresponding normal operation state data corresponding to the equipment to be detected to obtain a detection result corresponding to the equipment to be detected; wherein, the normal operation state data comprises: sampling precision preset range, input quantity change preset range, output quantity change preset range and one or more of inverter output voltage change preset range; the data of the normal running state are stored in the wave recording fault device in advance, and each data of the normal running state corresponds to one device to be detected.
In one example, after obtaining the detection results of the respective devices under test, the method further includes:
the fault recording device determines the equipment to be detected to be overhauled according to the detection result;
and the fault recording device determines a corresponding maintenance method according to the MMS message corresponding to the equipment to be detected to be maintained, and correspondingly stores the corresponding maintenance method in the detection result.
In one example, after obtaining the detection results of the respective devices under test, the method further includes:
the fault recorder configures preset scheduled inspection identifiers for each detection result, and the scheduled inspection identifiers comprise: one of a maintenance-free logo, a care-required logo, a maintenance-required logo and a manual confirmation-required logo.
In one example, the operating state information includes: one or more of software version information, sampling precision, input quantity, output quantity and inverter power supply output voltage corresponding to the equipment to be detected;
the detection result comprises the following steps: one of no service required, care required, service required, and manual determination required.
In one example, the step of obtaining, by the fault recording device, third data to be detected of the corresponding device to be detected according to the stored running state information includes:
the fault recording device writes each information element in the running state information into a corresponding scheduled inspection item in a scheduled inspection item table corresponding to the equipment to be detected respectively according to the item identifier in the running state information; the item identification corresponds to the scheduled inspection item one by one, and each information element corresponds to one scheduled inspection identification; the scheduled inspection item table is preset in the fault recording device and comprises one or more scheduled inspection items;
the fault recording device determines third to-be-detected data corresponding to each scheduled inspection item according to the information elements in the scheduled inspection item table;
and the fault recording device respectively compares the third data to be detected with the corresponding normal operation state data corresponding to the equipment to be detected to obtain a detection result corresponding to the equipment to be detected.
In one example, when the fault recorder records the first operating state information and the second operating state information, the detection result is specifically:
under the condition that the information elements in the second running state information are the same as the normal running state data, the detection result is determined manually;
under the condition that the information elements in the first running state information are the same as the normal running state data, the detection result is that attention needs to be paid;
and under the condition that each information element is different from the normal operation state data, the detection result is that the maintenance is required.
In a second aspect, an embodiment of the present application provides a fault recording apparatus, including: collecting equipment and management equipment;
the acquisition equipment is used for respectively acquiring first data to be detected and second data to be detected of one or more devices to be detected; one device to be detected corresponds to one first data to be detected and one second data to be detected; the data transmission carrier of the first data to be detected is different from the data transmission carrier of the second data to be detected;
the management equipment is used for respectively determining the corresponding running state information of the equipment to be detected according to the first data to be detected and the second data to be detected and storing the running state information; and when the current time node is determined to be the regular detection time node, respectively obtaining the detection results of the corresponding equipment to be detected according to the stored running state information.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a flowchart of an automatic scheduled inspection method for equipment in an electrical power system according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a fault recording device according to an embodiment of the present application.
Detailed Description
In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.
The embodiment of the application discloses an automatic scheduled detection method for equipment in an electric power system, and as shown in fig. 1, in step 101, a fault recording device respectively acquires first data to be detected and second data to be detected of one or more equipment to be detected.
And the equipment to be detected transmits the first data to be detected to the fault recording device through an MMS protocol and GOOSE outlet message in IEC 61850. The GOOSE outlet message is used for transmitting switching value information so as to determine a fault occurrence place; the MMS protocol is used for transmitting protection action event information, alarm information, switching value displacement information and recording report information. In the embodiment of the present application, the information all belongs to the first data to be detected.
The second data to be detected is an electrical quantity of the device to be detected, such as one or more of voltage, current and power of the device to be detected. And the fault recording device acquires second data to be detected through a circuit between the fault recording device and the equipment to be detected.
For power systems, the closing or opening of a switch indicates a possible failure. For example, when a voltage or current overload occurs, the protection device may control the switch to disconnect the bus from the fault circuit or to close the protection circuit. Therefore, the switching amount information is separately transmitted to accurately determine the location of the failure.
For the switching value information in the first data to be detected, the equipment to be detected sends the GOOSE outlet message to the acquisition equipment of the fault recording device through the process layer, and the acquisition equipment sends the received GOOSE outlet message to the management equipment of the fault recording device through the switch. And for the non-switching value information in the first data to be detected, the equipment to be detected sends the information to be detected to the management equipment of the fault recording device through an MMS protocol.
In the embodiment of the present application, because the GOOSE egress packet needs to be transmitted by a network, the packet transmission cannot be realized by an internal communication mode of the fault recording device. The collecting device is usually disposed in the process layer, and the managing device is usually disposed in the station control layer, so that the collecting device needs to send the received GOOSE egress packet to the managing device through the switch.
In addition, in actual operation, not every equipment to be detected needs to finish the regular inspection by using the first data to be detected and the second data to be detected, some equipment to be detected only needs the first data to be detected to finish the regular inspection, some equipment to be detected of the fault recording device only needs the second data to be detected to finish the regular inspection, and under the above condition, the fault recording device only obtains the corresponding first data to be detected or the corresponding second data to be detected. The fault recording device can also identify the alarm information in the MMS message and send commands for executing tripping, locking and the like to the corresponding equipment to be detected according to the alarm information.
And 103, respectively determining the first running state information and the second running state information of the corresponding equipment to be detected by the fault recording device according to the first data to be detected and the second data to be detected.
And 104, determining the running state information by the fault recording device according to the first running state information and the second running state information, and executing 106.
Therefore, in the embodiment of the application, the fault recording device respectively determines the first running state information and the second running state information of the corresponding equipment to be detected according to the first data to be detected and the second data to be detected, and then mutually verifies the first running state information and the second running state information to ensure the accuracy of the data to be detected. When the first running state information is the same as the second running state information, the obtained data has no problem, and one record is selected from the first data to be detected and the second data to be detected directly to generate the running state information; when the first running state information is different from the second running state information, the obtained wrong data is described, and the first data to be detected and the second data to be detected cannot be distinguished from being wrong, so that the first running state information and the second running state information are all recorded, and an abnormal state identifier is added, so that a regular inspector can conveniently inspect the equipment to be detected in an abnormal state.
And step 105, the fault recording device determines corresponding operation state data according to at least one of the first condition parameter and the second condition parameter.
In this embodiment of the application, the first condition parameter is a switching result of the pressing plate, and the second condition parameter is a switching result of the power switch of the detected device, where the first condition parameter is transmitted through an MMS message, and the second condition parameter is transmitted through a GOOSE export message. One operation state data may have both the corresponding first condition parameter and the second condition parameter, or only one of them. When the operating state data has the corresponding first condition parameter and second condition parameter, the fault recording device needs to determine the operating state parameter according to the first condition parameter and the second condition parameter. Taking a circuit breaker transmission test and signal inspection as examples, when a switch is closed or opened, the circuit breaker sends a GOOSE message to a fault filtering device through an operation box and a network, and after receiving the GOOSE message, a protection device records the input quantity; and according to the received GOOSE message, the protection device sends a switch closing instruction or a switch opening instruction to the operation box through the network, and records the opening amount. The above-mentioned flow is a complete circuit breaker transmission test, and when the above-mentioned flow is examined regularly, the fault recorder obtains the corresponding opening and closing amount of the switch of the circuit breaker after tripping and closing respectively, and the protection device sends the MMS message that the order generated after the circuit breaker, wherein, GOOSE exports the message record and has the opening and closing amount, MMS message record has the switching result of the board pressure of protection device. When the switching result of the plate pressure is switching, the GOOSE export message contains the switching output quantity and the switching input quantity at the same time, so that the transmission test and the signal check of the circuit breaker can be determined to be normal, and otherwise, the circuit breaker is abnormal. This is because the GOOSE export message contains both the export amount and the import amount, which indicates that the breaker transmission test is complete, and if the breaker transmission test is incomplete, the test result cannot be determined.
And step 106, the fault recording device respectively obtains third data to be detected of the corresponding equipment to be detected according to the stored running state information.
The regular inspection of the power system comprises a plurality of regular inspection items, such as software version information, sampling precision, input quantity, output voltage of the inverter power supply and the like, and the items have respective evaluation standards, so that the regular inspection of each regular inspection item is required during the regular inspection. In order to facilitate the scheduled inspection, a scheduled inspection item table is arranged in the fault recorder in advance, and the table comprises at least one scheduled inspection item.
The running state information comprises a plurality of information elements, and in order to accurately find the information elements corresponding to the scheduled inspection items, a scheduled inspection identifier is configured for each scheduled inspection item in the scheduled inspection item table, so that the scheduled inspection items and the scheduled inspection identifiers are in one-to-one correspondence. Meanwhile, a corresponding relation between the scheduled inspection identifier and the information elements is established, so that each information element corresponds to one scheduled inspection identifier. Therefore, the fault recording device can write each information element into the corresponding scheduled inspection item according to the scheduled inspection identifier, and obtain third data to be detected.
And 107, comparing the third data to be detected with the corresponding normal operation state data corresponding to the equipment to be detected respectively to obtain a detection result corresponding to the equipment to be detected.
And after the third data to be detected is obtained, comparing the normal operation state data pre-stored in the wave recording fault device with the third data to be detected to obtain a detection result. For example, whether the sampling accuracy is the sampling accuracy specified by the normal operation state; whether the input amount and the output amount are respectively the input amount and the output amount specified in the normal operation state; whether the output voltage of the inverter power supply is the output voltage of the inverter power supply specified in the normal operation state or not.
And step 108, determining the equipment to be detected to be overhauled according to the detection result by the fault recording device.
And step 109, determining a corresponding maintenance method by the fault recording device according to the MMS message corresponding to the equipment to be detected to be maintained, and correspondingly storing the corresponding maintenance method in the detection result.
The MMS messages include: protection action event information, alarm information, switching value displacement information and recording report information. Therefore, the fault recording device can determine the maintenance method according to the MMS message and generate the regular maintenance report in the XML standard format. Meanwhile, the fault recording device stores the scheduled inspection report and all information (including parameters, result data, evaluation, start and end time, detection times and the like) in the scheduled inspection process into the scheduled inspection record library, so that a worker determines whether to add manual maintenance according to the information in the record library, unnecessary work and waste of human resources are reduced, and the scheduled inspection efficiency is improved.
As shown in fig. 2, an embodiment of the present application provides a fault recording apparatus, including: a collection device 201 and a management device 202;
the acquisition device 201 is configured to acquire first data to be detected and second data to be detected of one or more devices to be detected, respectively; one device to be detected corresponds to one first data to be detected and one second data to be detected; the data transmission carrier of the first data to be detected and the data transmission carrier of the second data to be detected are different;
the management device 202 is configured to determine operation state information of corresponding devices to be detected respectively according to the first data to be detected and the second data to be detected of the detection result, and store the operation state information of the detection result; and when the current time node is determined to be the regular detection time node, respectively obtaining the detection results of the corresponding equipment to be detected according to the stored running state information.
In this embodiment, the acquisition device 201 is an acquisition unit of a fault recording device, and the management device is a management unit of the fault recording device. The acquisition device 201 is arranged at a process layer, and the management device 202 is arranged at a station control layer, so that two information transmission channels exist between the acquisition device 201 and the management device 202, one is an internal network, namely, the traditional data transmission of the acquisition device 201 and the management device 202 is used for transmitting an electric signal acquired by the acquisition device 201 from a device to be detected, and an MMS message used for interaction between the management device 202 and a protection device.
The other branch is an external network and is divided into two branches, and one branch is an acquisition unit which directly performs data interaction with the management device 202 by sending an MMS message to acquire device information of the device 201, such as the device model. The data processing efficiency of the fault recording device can be improved by the arrangement of the branch. Since the conventional fault recorder only has the functions of collecting data and processing data, it is necessary to set a new data processing module in the management device 202 to acquire the device information of the collecting device 201. However, the MMS communication module is already provided in IEC61850, so the present application incorporates a new function into the MMS communication module already provided in IEC61850 to improve data processing efficiency.
The other external network branch is that the collecting device 201 sends the collected GOOSE egress packet to the managing device 202 through the switch.
Due to the existence of the two data transmission data channels, the acquisition device 201 can acquire the MMS message and the GOOSE output message from the network, that is, the first data to be detected and the recording data acquired from the circuit, that is, the second data to be detected. The management device 202 determines first operating state information corresponding to the first to-be-detected data and second operating state information corresponding to the second to-be-detected data. Finally, the management device 202 performs mutual verification on the first operating state information and the second operating state information to ensure the accuracy of the operating state information.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. An automatic scheduled inspection method for equipment in an electric power system is characterized by comprising the following steps:
the fault recording device respectively acquires first data to be detected and second data to be detected of one or more devices to be detected; one device to be detected corresponds to one first data to be detected and one second data to be detected; the data transmission carrier of the first data to be detected is different from the data transmission carrier of the second data to be detected;
according to the first data to be detected and the second data to be detected, the fault recording device respectively determines the corresponding running state information of the equipment to be detected and stores the running state information; and when the fault recording device determines that the current time node is the regular detection time node, the fault recording device respectively obtains the detection results of the corresponding equipment to be detected according to the stored running state information.
2. The method of claim 1,
the determining, by the fault recording device, the operating state information of the corresponding device to be detected according to the first data to be detected and the second data to be detected includes:
the fault recording device determines first running state information of corresponding equipment to be detected according to the first data to be detected;
the fault recording device determines corresponding second operation state information of the equipment to be detected according to the second data to be detected;
the fault recording device compares whether the first running state information is the same as the second running state information, and records the first running state information or the second running state information under the condition that the first running state information is the same as the second running state information;
and under the condition that the first running state information is different from the second running state information, the fault recording device records the first running state information and the second running state information and records an abnormal state identifier in the running state information.
3. The method of claim 1,
after the fault recording device respectively acquires first data to be detected and second data to be detected of one or more devices to be detected, before the fault recording device respectively determines the operating state information of the corresponding devices to be detected according to the first data to be detected and the second data to be detected, the method further comprises:
the fault recording device detects whether the first data to be detected contains at least one of a first condition parameter and a second condition parameter corresponding to state data information;
when the first data to be detected contains at least one of the first condition parameter and the second condition parameter, the fault recording device determines corresponding operation state data according to at least one of the first condition parameter and the second condition parameter;
the first condition parameter is the switching result of the pressing plate, and the second condition parameter is the input quantity and the output quantity of the equipment to be detected.
4. The method according to claim 1, wherein the step of acquiring the first data to be detected of the one or more devices to be detected by the fault recording device comprises:
an acquisition device in the fault recording device receives a general object-oriented substation event GOOSE outlet message sent by the device to be detected;
the collecting equipment sends the GOOSE outlet message to management equipment in the fault recording device through a switch;
the management equipment receives a manufacturing message standard MMS message; wherein the first data to be detected includes: the GOOSE export message and the MMS message.
5. The method of claim 1,
the fault recording device respectively obtains corresponding detection results of the equipment to be detected according to the stored running state information, and the fault recording device comprises:
the fault recording device respectively obtains third data to be detected of corresponding equipment to be detected according to the stored running state information, wherein the third data to be detected comprises: one or more of the regular check sampling precision, the regular check input quantity, the regular check output quantity and the regular check inverter power supply output voltage; the operating state information includes: one or more of software version information, sampling precision, input quantity, output quantity and inverter power supply output voltage corresponding to the equipment to be detected;
the fault recording device respectively compares the third data to be detected with corresponding normal operation state data corresponding to the equipment to be detected to obtain the detection result corresponding to the equipment to be detected; wherein the normal operation state data includes: one or more of the regular check sampling precision, the regular check input quantity, the regular check output quantity and the regular check inverter power supply output voltage; and the normal operation state data are stored in the fault recording device in advance, and each normal operation state data corresponds to one device to be detected.
6. The method of claim 4,
after the detection results of the corresponding devices to be detected are obtained respectively, the method further comprises the following steps:
the fault recording device determines the equipment to be detected to be overhauled according to the detection result;
and the fault recording device determines a corresponding maintenance method according to the MMS message corresponding to the equipment to be detected to be maintained, and correspondingly stores the corresponding maintenance method in the detection result.
7. The method according to claim 1, wherein after said obtaining the detection results of the respective devices under test, the method further comprises:
the fault recording device configures a preset scheduled inspection identifier for each detection result, wherein the scheduled inspection identifier comprises: one of a maintenance-free logo, a care-required logo, a maintenance-required logo and a manual confirmation-required logo.
8. The method of claim 5,
the fault recording device respectively obtains corresponding third data to be detected of the equipment to be detected according to the stored running state information, and the fault recording device comprises:
the fault recording device writes each information element in the running state information into a corresponding fixed inspection item in a fixed inspection item table corresponding to the equipment to be inspected respectively according to the item identification in the running state information; the item identifiers correspond to the scheduled inspection items one by one, and each information element corresponds to one scheduled inspection identifier; the scheduled inspection item table is preset in the fault recording device and comprises one or more scheduled inspection items;
the fault wave recording device determines the third to-be-detected data corresponding to each scheduled inspection item according to the information elements in the scheduled inspection item table;
and the fault recording device respectively compares the third data to be detected with corresponding normal operation state data corresponding to the equipment to be detected to obtain the detection result corresponding to the equipment to be detected.
9. The method of claim 2, wherein the method comprises:
when the fault recording device records the first running state information and the second running state information, the detection result specifically is as follows:
under the condition that information elements in the second running state information are the same as normal running state data, the detection result is manually determined;
under the condition that information elements in the first running state information are the same as normal running state data, the detection result is that attention needs to be paid;
and under the condition that each information element is different from the normal operation state data, the detection result is that the maintenance is required.
10. A fault logging apparatus comprising: collecting equipment and management equipment;
the acquisition equipment is used for respectively acquiring first data to be detected and second data to be detected of one or more devices to be detected; one device to be detected corresponds to one first data to be detected and one second data to be detected; the data transmission carrier of the first data to be detected is different from the data transmission carrier of the second data to be detected;
the management equipment is used for respectively determining the running state information of the corresponding equipment to be detected according to the first data to be detected and the second data to be detected and storing the running state information; and when the current time node is determined to be the regular detection time node, respectively obtaining the detection results of the corresponding equipment to be detected according to the stored running state information.
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| CN114002590B (en) * | 2020-07-28 | 2024-01-30 | 北京机械设备研究所 | Travel switch detection method and system |
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