CN111856262A - GIS disconnecting link detection method, device, system, equipment and storage medium - Google Patents
GIS disconnecting link detection method, device, system, equipment and storage medium Download PDFInfo
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Abstract
The invention discloses a GIS disconnecting link detection method, a device, a system, equipment and a storage medium. The method comprises the following steps: after receiving a switching-on deflection signal, switching to a switching-on detection mode; acquiring first temperature information of a three-phase disconnecting link in a closing detection mode; determining whether the three-phase disconnecting link is switched on in place or not based on the first temperature information; when the fact that the three-phase disconnecting link is switched in place and the duration of the switching-on detection mode reaches the preset duration is determined, switching to an operation monitoring mode; acquiring second temperature information of the three-phase disconnecting link in an operation monitoring mode; and determining whether the three-phase disconnecting link has abnormal operation or not based on the second temperature information. By detecting the temperature information of the three-phase disconnecting link, whether the three-phase disconnecting link is switched on in place or not and whether the three-phase disconnecting link is abnormal or not in the operation process are determined, the disconnecting link position detection and the operation state monitoring of the closed GIS disconnecting link equipment are achieved, and the fault detection efficiency is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of electric power, in particular to a GIS disconnecting link detection method, device, system, equipment and storage medium.
Background
In recent years, with the continuous development and maturity of technology, GIS (gas insulated metal enclosed Switchgear) equipment has been widely operated in each newly built substation. GIS equipment is not only widely used in the high voltage and ultrahigh voltage fields, but also used in the extra-high voltage field. Compared with the conventional outdoor open equipment, the GIS equipment has the advantages of compact structure, small occupied area, high reliability, flexible configuration, high safety, high environmental adaptability, small maintenance workload and maintenance interval of main parts not less than 20 years.
The GIS equipment seals the diversion component in the metal casing, and the totally closed structure makes the operation personnel unable direct observation GIS equipment inside switch position and running state, and the operation personnel can't in time detect out the trouble in the GIS equipment, has caused great influence to the operation personnel to carry out daily operation and maintenance work.
Disclosure of Invention
The invention provides a GIS disconnecting link detection method, a device, a system, equipment and a storage medium, which are used for realizing the disconnecting link position detection and the running state monitoring of closed GIS disconnecting link equipment and improving the fault detection efficiency.
In a first aspect, an embodiment of the present invention provides a GIS disconnecting link detection method, including:
After receiving a switching-on deflection signal, switching to a switching-on detection mode;
acquiring first temperature information of the three-phase disconnecting link in the closing detection mode;
determining whether the three-phase disconnecting link is switched on in place or not based on the first temperature information;
when the fact that the three-phase disconnecting link is switched in place and the duration of the switching-on detection mode reaches the preset duration is determined, switching to an operation monitoring mode;
acquiring second temperature information of the three-phase disconnecting link in the operation monitoring mode;
and determining whether the three-phase disconnecting link has abnormal operation or not based on the second temperature information.
Optionally, determining whether the three-phase disconnecting link is switched on in place based on the first temperature information includes:
calculating a first temperature rise rate of each phase of disconnecting link according to the first temperature information;
determining a first target switch for which the first rate of temperature rise is greater than a first rate threshold;
and sending a first alarm control signal to an alarm device, and controlling the alarm device to send first alarm information, wherein the first alarm information is used for indicating that the first target disconnecting link is not in place to be switched on.
Optionally, determining whether the three-phase disconnecting link is switched on in place based on the first temperature information further includes:
calculating a first temperature rise rate of each phase of disconnecting link according to the first temperature information;
Determining a second target knife switch with the first temperature rise rate being zero;
and sending a second alarm control signal to an alarm device, and controlling the alarm device to send second alarm information, wherein the second alarm information is used for indicating that the second target disconnecting link is not switched on.
Optionally, the determining whether the three-phase disconnecting link has an abnormal operation based on the second temperature information includes:
determining the temperature of each phase of disconnecting link according to the second temperature information;
determining a third target knife switch with the temperature greater than the temperature threshold;
and sending a third alarm control signal to an alarm device, and controlling the alarm device to send third alarm information, wherein the third alarm information is used for indicating that the third target disconnecting link has abnormal operation.
Optionally, the determining whether the three-phase disconnecting link has an abnormal operation based on the second temperature information includes:
calculating a second temperature rise rate of each phase of disconnecting link according to the second temperature information;
determining a fourth target knife switch with the second temperature rise rate larger than a second rate threshold;
and sending a fourth alarm control signal to an alarm device, and controlling the alarm device to send fourth alarm information, wherein the fourth alarm information is used for indicating that the fourth target disconnecting link has abnormal operation.
Optionally, the determining whether the three-phase disconnecting link has an abnormal operation based on the second temperature information includes:
determining the temperature of each phase of disconnecting link according to the second temperature information;
determining a fifth target switch with the lowest temperature in the switches of all phases;
respectively calculating the temperature difference of the temperatures of the other two phases of disconnecting links relative to the reference temperature by taking the temperature of the fifth target disconnecting link as the reference temperature;
determining a sixth target knife switch with the temperature difference between the sixth target knife switch and the fifth target knife switch larger than a temperature difference threshold value from the other two phases of knife switches;
and sending a fifth alarm control signal to an alarm device, and controlling the alarm device to send fifth alarm information, wherein the fifth alarm information is used for indicating that the sixth target disconnecting link has abnormal operation.
In a second aspect, an embodiment of the present invention further provides a GIS disconnecting link detecting device, where the device includes:
the first switching module is used for switching to a closing detection mode after receiving a closing displacement signal;
the first temperature information acquisition module is used for acquiring first temperature information of the three-phase disconnecting link in the switching detection mode;
the switching-on in-place determining module is used for determining whether the three-phase disconnecting link is switched on in place or not based on the first temperature information;
The second switching module is used for switching to an operation monitoring mode when the fact that the three-phase disconnecting link is switched in place and the duration of the switching detection mode reaches a preset duration is determined;
the second temperature information acquisition module is used for acquiring second temperature information of the three-phase disconnecting link in the operation monitoring mode;
and the abnormal operation determining module is used for determining whether the three-phase disconnecting link has abnormal operation or not based on the second temperature information.
Optionally, the closing in-place determining module includes:
the first temperature rise rate calculation unit is used for calculating the first temperature rise rate of each phase of disconnecting link according to the first temperature information;
the first target disconnecting link determining unit is used for determining a first target disconnecting link of which the first temperature rise rate is greater than a first rate threshold;
the first alarm control signal sending unit is used for sending a first alarm control signal to the alarm device and controlling the alarm device to send first alarm information, and the first alarm information is used for indicating that the first target disconnecting link is not in place to be switched on.
Optionally, the closing in-place determining module is further configured to:
calculating a first temperature rise rate of each phase of disconnecting link according to the first temperature information;
determining a second target knife switch with the first temperature rise rate being zero;
And sending a second alarm control signal to an alarm device, and controlling the alarm device to send second alarm information, wherein the second alarm information is used for indicating that the second target disconnecting link is not switched on.
Optionally, the operation abnormality determining module includes:
the temperature determining unit is used for determining the temperature of each phase of disconnecting link according to the second temperature information;
the third target disconnecting link determining unit is used for determining a third target disconnecting link of which the temperature is greater than the temperature threshold;
and the third alarm control signal sending unit is used for sending a third alarm control signal to the alarm device and controlling the alarm device to send third alarm information, and the third alarm information is used for indicating that the third target disconnecting link has abnormal operation.
Optionally, the operation abnormality determining module is further configured to:
calculating a second temperature rise rate of each phase of disconnecting link according to the second temperature information;
determining a fourth target knife switch with the second temperature rise rate larger than a second rate threshold;
and sending a fourth alarm control signal to an alarm device, and controlling the alarm device to send fourth alarm information, wherein the fourth alarm information is used for indicating that the fourth target disconnecting link has abnormal operation.
Optionally, the operation abnormality determining module is further configured to:
Determining the temperature of each phase of disconnecting link according to the second temperature information;
determining a fifth target switch with the lowest temperature in the switches of all phases;
respectively calculating the temperature difference of the temperatures of the other two phases of disconnecting links relative to the reference temperature by taking the temperature of the fifth target disconnecting link as the reference temperature;
determining a sixth target knife switch with the temperature difference between the sixth target knife switch and the fifth target knife switch larger than a temperature difference threshold value from the other two phases of knife switches;
and sending a fifth alarm control signal to an alarm device, and controlling the alarm device to send fifth alarm information, wherein the fifth alarm information is used for indicating that the sixth target disconnecting link has abnormal operation.
In a third aspect, an embodiment of the present invention further provides a GIS disconnecting link detecting system, including: the system comprises a cable type temperature sensor, an information collector, a controller and an alarm;
the cable type temperature sensor is wound on the sleeve at the position of the GIS disconnecting link and used for acquiring the temperature information of the three-phase disconnecting link in real time;
the information collector is respectively connected with the cable type temperature sensor and the controller and is used for receiving temperature information collected by the cable type temperature sensor and receiving a closing deflection signal;
the alarm is connected with the controller and used for receiving an alarm control signal sent by the controller;
The controller is configured to perform the GIS switch detection method as provided by the first aspect of the invention.
In a fourth aspect, an embodiment of the present invention further provides a computer device, including:
one or more processors;
storage means for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors implement the GIS switch detection method according to the first aspect of the present invention.
In a fifth aspect, 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 a processor, implements the GIS disconnecting link detection method according to the first aspect of the present invention.
According to the GIS disconnecting link detection method provided by the embodiment of the invention, after a switching-on deflection signal is received, a switching-on detection mode is switched; acquiring first temperature information of a three-phase disconnecting link in a closing detection mode; determining whether the three-phase disconnecting link is switched on in place or not based on the first temperature information; when the fact that the three-phase disconnecting link is switched in place and the duration of the switching-on detection mode reaches the preset duration is determined, switching to an operation monitoring mode; acquiring second temperature information of the three-phase disconnecting link in an operation monitoring mode; and determining whether the three-phase disconnecting link has abnormal operation or not based on the second temperature information. By detecting the temperature information of the three-phase disconnecting link, whether the three-phase disconnecting link is switched on in place or not and whether the three-phase disconnecting link is abnormal or not in the operation process are determined, the disconnecting link position detection and the operation state monitoring of the closed GIS disconnecting link equipment are achieved, and the fault detection efficiency is improved.
Drawings
Fig. 1 is a flowchart of a GIS disconnecting link detection method according to an embodiment of the present invention;
fig. 2 is a flowchart of a GIS disconnecting link detection method according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a GIS disconnecting link detecting device according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a GIS disconnecting link detecting system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a computer device according to a fifth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of a GIS switch detection method according to an embodiment of the present invention, where the present embodiment is applicable to a situation of GIS switch abnormality detection, and the method may be executed by the GIS switch detection device according to the embodiment of the present invention, and the device may be implemented in a software and/or hardware manner and is integrated in the controller according to the embodiment of the present invention. As shown in fig. 1, the method specifically includes the following steps: the method specifically comprises the following steps:
And S101, switching to a closing detection mode after receiving a closing displacement signal.
Specifically, the GIS disconnecting link is connected with the controller, and when the GIS disconnecting link acts, a deflection signal can be generated. Usually, the displacement signal is a digital signal, and a "1" represents a closing displacement signal, and a "0" represents an opening displacement signal. The controller can be switched to a closing detection mode from an original standby state after receiving a closing displacement signal, and judges whether the disconnecting link is closed in place or not by acquiring temperature information of the three-phase disconnecting link in the closing detection mode.
S102, acquiring first temperature information of the three-phase disconnecting link in a closing detection mode.
Specifically, after entering a closing detection mode, the controller acquires temperature information of each phase of disconnecting link in the three-phase disconnecting link at a certain time interval, and uses the temperature information as first temperature information. Specifically, the temperature sensor is arranged on each knife switch and used for converting the temperature on each knife switch into an analog electrical signal through a thermoelectric effect, and the controller analyzes the analog electrical signal after receiving the analog electrical signal to obtain the temperature on each knife switch. In an embodiment of the present invention, the temperature sensors are 3 cable type temperature sensors, which are respectively wound on the sleeves at the position of the GIS disconnecting link. The cable type temperature sensor is also called as a temperature measuring cable and mainly comprises an analog temperature measuring cable and a digital temperature measuring cable. The temperature measuring cable at least comprises one temperature sensor, and can be arranged in a plurality of temperature measuring cables according to needs, wherein the common temperature measuring cable comprises the temperature sensor, a lead, a tensile steel wire rope and a sheath. It should be noted that, in other embodiments of the present invention, the temperature sensor may also be in other forms, for example, a radiation type temperature sensor, and the embodiments of the present invention are not limited herein.
S103, determining whether the three-phase disconnecting link is switched on in place or not based on the first temperature information.
Specifically, the controller analyzes the first temperature information to obtain the temperature of each phase of disconnecting link, determines the temperature change of each phase of disconnecting link based on the temperatures obtained for multiple times, and then determines whether the three-phase disconnecting link is switched on in place based on the temperature of each phase of disconnecting link and the temperature change of each phase of disconnecting link.
And S104, switching to an operation monitoring mode when the fact that the three-phase disconnecting link is switched in place and the duration of the switching-on detection mode reaches the preset duration is determined.
Specifically, in step S101, the controller enters the closing detection mode and a timer inside the controller starts counting time. In step S103, when it is determined that all three-phase switches are switched in place and the controller times a preset time period T (that is, the duration of the switching-in detection mode reaches the preset time period), it indicates that there is no abnormality such as incomplete switching-in the switching-in process of the GIS switch, and at this time, the controller switches to the operation monitoring mode. Specifically, in the embodiment of the present invention, the preset time period T may be 3s or 5 s. And in the operation monitoring mode, whether the disconnecting link is abnormal in operation is monitored by acquiring the temperature information of the three-phase disconnecting link.
And S105, acquiring second temperature information of the three-phase disconnecting link in the operation monitoring mode.
Specifically, after entering the operation monitoring mode, the controller collects temperature information of each phase of disconnecting link in the three-phase disconnecting link at a certain time interval, and uses the temperature information as second temperature information. Specifically, the temperature sensor is arranged on each knife switch and used for converting the temperature on each knife switch into an analog electrical signal through a thermoelectric effect, and the controller analyzes the analog electrical signal after receiving the analog electrical signal to obtain the temperature on each knife switch. In an embodiment of the present invention, the temperature sensors are 3 cable type temperature sensors, which are respectively wound on the sleeves at the position of the GIS disconnecting link. In this embodiment of the present invention, the temperature sensor may be the same as the temperature sensor described in step S102, or may be a different temperature sensor, which is not limited herein.
And S106, determining whether the three-phase disconnecting link has abnormal operation or not based on the second temperature information.
Specifically, the controller analyzes the second temperature information to obtain the temperature of each phase of disconnecting link, determines the temperature change of each phase of disconnecting link based on the temperatures obtained for multiple times, and then determines whether the three-phase disconnecting link has abnormal operation or not based on the temperature of each phase of disconnecting link and the temperature change of each phase of disconnecting link.
According to the GIS disconnecting link detection method provided by the embodiment of the invention, after a switching-on deflection signal is received, a switching-on detection mode is switched; acquiring first temperature information of a three-phase disconnecting link in a closing detection mode; determining whether the three-phase disconnecting link is switched on in place or not based on the first temperature information; when the fact that the three-phase disconnecting link is switched in place and the duration of the switching-on detection mode reaches the preset duration is determined, switching to an operation monitoring mode; acquiring second temperature information of the three-phase disconnecting link in an operation monitoring mode; and determining whether the three-phase disconnecting link has abnormal operation or not based on the second temperature information. By detecting the temperature information of the three-phase disconnecting link, whether the three-phase disconnecting link is switched on in place or not and whether the three-phase disconnecting link is abnormal or not in the operation process are determined, the disconnecting link position detection and the operation state monitoring of the closed GIS disconnecting link equipment are achieved, and the fault detection efficiency is improved.
Example two
Fig. 2 is a flowchart of a GIS disconnecting link detecting method according to a second embodiment of the present invention, where the second embodiment of the present invention is optimized based on the first embodiment, and a specific process of determining whether a disconnecting link is switched on in place and determining whether a three-phase disconnecting link has an abnormal operation in the second embodiment of the present invention is described in detail, specifically, as shown in fig. 2, the method according to the second embodiment of the present invention may include the following steps:
And S201, after receiving a closing displacement signal, switching to a closing detection mode.
Specifically, after receiving a switching-on displacement signal, the controller can be switched from an original standby state to a switching-on detection mode, and under the switching-on detection mode, whether the disconnecting link is switched on in place or not is judged by collecting temperature information of the three-phase disconnecting link.
S202, acquiring first temperature information of the three-phase disconnecting link in a closing detection mode.
Specifically, after entering a closing detection mode, the controller acquires temperature information of each phase of disconnecting link in the three-phase disconnecting link at a certain time interval, and uses the temperature information as first temperature information.
S203, calculating a first temperature rise rate of each phase of disconnecting link according to the first temperature information.
Specifically, in an embodiment of the present invention, the controller analyzes the first temperature information to obtain the temperature of each phase of the disconnecting link, and determines the temperature rise rate of each phase of the disconnecting link as the first temperature rise rate based on the temperatures obtained for multiple times. Specifically, the temperature rise rate may be an average rate obtained by performing linear fitting on the temperatures acquired for multiple times, or may be an instantaneous rate obtained by performing curve fitting on the temperatures acquired for multiple times and deriving a curve at a certain time, which is not limited herein.
S204, determining a first target knife switch with the first temperature rise rate larger than a first rate threshold value.
Specifically, when the first temperature rise rate is the average rate, the relationship between the average temperature rise rate of each phase of disconnecting link and the first rate threshold is judged, and the disconnecting link with the average temperature rise rate larger than the first rate threshold is used as the first target disconnecting link.
And when the first temperature rise rate is the instantaneous rate, determining the instantaneous rate at each moment, judging the relation between the instantaneous temperature rise rate of each phase of disconnecting link and a first rate threshold value, and taking the disconnecting link of which the instantaneous temperature rise rate is greater than the first rate threshold value as a first target disconnecting link.
S205, sending a first alarm control signal to an alarm device, and controlling the alarm device to send first alarm information, wherein the first alarm information is used for indicating that the first target disconnecting link is not in place to be switched on.
Specifically, after the first target disconnecting link is determined, the controller sends a first alarm control signal to the alarm device to control the alarm device to send first alarm information, and the first alarm information is used for indicating that the first target disconnecting link is not switched on in place. Specifically, the first alarm information may be sound, light, or a combination of the sound and the light, and the embodiment of the present invention is not limited herein.
After the knife switch is closed, current flows, and the heat effect of the current shows that the heat is in direct proportion to the resistance and the square of the current, and if the knife switch is closed at the moment, temperature rise is generated certainly. Generally, the three-phase load distribution of the system is balanced, and the three-phase currents are approximately equal. Therefore, if the temperature rises too fast, the resistance of the phase knife switch is larger, the knife switch is not closed in place, and the resistance is larger due to insufficient contact surfaces of the moving contact and the static contact, so that the condition that the switch-on of the phase knife switch is not in place can be judged.
In other embodiments of the present invention, determining whether the three-phase disconnecting link is switched on in place based on the first temperature information may further include:
calculating a first temperature rise rate of each phase of disconnecting link according to the first temperature information;
determining a second target knife switch with the first temperature rise rate being zero;
and sending a second alarm control signal to the alarm device to control the alarm device to send second alarm information, wherein the second alarm information is used for indicating that the second target disconnecting link is not switched on.
Specifically, the controller analyzes the first temperature information to obtain the temperature of each phase of disconnecting link, and determines the temperature rise rate of each phase of disconnecting link as the first temperature rise rate based on the temperatures obtained for multiple times. And determining a second target knife switch with the first temperature rise rate being zero, namely that the temperature of the phase knife switch is not changed. And sending a second alarm control signal to the alarm device to control the alarm device to send second alarm information, wherein the second alarm information is used for indicating that the second target disconnecting link is not switched on.
After the knife switch is closed, current flows, and the heat effect of the current shows that if the knife switch is closed, temperature rise is generated certainly. Therefore, if the temperature rise rate of a certain phase of the knife switch is zero (namely, no temperature change exists), the knife switch of the phase can be judged to be not switched on.
And S206, when the fact that the three-phase disconnecting link is switched in place and the duration of the switching-on detection mode reaches the preset duration is determined, switching to an operation monitoring mode.
Specifically, in the above step, if it is determined that the first temperature rise rate of each phase of disconnecting link is not zero and is less than or equal to the first rate threshold, it is determined that all three phases of disconnecting links are switched in place. In step S201, the controller enters the closing detection mode and a timer inside the controller starts counting time. When it is determined that all three-phase disconnecting links are switched on in place and the controller times to reach the preset time length T (namely the duration of the switching-on detection mode reaches the preset time length), it is indicated that the GIS disconnecting link is not switched on in place and other abnormalities do not occur in the switching-on process, and at the moment, the controller is switched to the operation monitoring mode. And in the operation monitoring mode, whether the disconnecting link is abnormal in operation is monitored by acquiring the temperature information of the three-phase disconnecting link.
And S207, acquiring second temperature information of the three-phase disconnecting link in the operation monitoring mode.
Specifically, after entering the operation monitoring mode, the controller collects temperature information of each phase of disconnecting link in the three-phase disconnecting link at a certain time interval, and uses the temperature information as second temperature information. Specifically, a temperature sensor may be provided on each knife switch for converting the temperature on each knife switch into an analog electrical signal as the second temperature information by a thermoelectric effect.
And S208, determining the temperature of each phase of knife switch according to the second temperature information.
Specifically, after receiving the second temperature information, the controller analyzes the second temperature information to obtain the temperature of each knife switch. In an embodiment of the present invention, the temperature sensors are 3 cable type temperature sensors, which are respectively wound on the sleeves at the position of the GIS disconnecting link.
209. And determining a third target knife switch with the temperature greater than the temperature threshold value.
Specifically, when the temperature of a certain phase of knife switch is greater than the temperature threshold, the phase of knife switch is determined to be a third target knife switch.
210. And sending a third alarm control signal to the alarm device to control the alarm device to send third alarm information, wherein the third alarm information is used for indicating that the third target disconnecting link has abnormal operation.
Specifically, after the third target disconnecting link is determined, the controller sends a third alarm control signal to the alarm device to control the alarm device to send third alarm information, and the third alarm information is used for indicating that the third target disconnecting link is abnormal in operation. Specifically, the third alarm information may be sound, light, or a combination of the sound and the light, and the embodiment of the present invention is not limited herein.
In other embodiments of the present invention, it is also possible to determine whether the knife switch has an abnormal operation by calculating the temperature rise rate of each phase of knife switch. Specifically, the method comprises the following steps:
Calculating a second temperature rise rate of each phase of disconnecting link according to the second temperature information;
determining a fourth target knife switch with the second temperature rise rate larger than a second rate threshold;
and sending a fourth alarm control signal to the alarm device, and controlling the alarm device to send fourth alarm information, wherein the fourth alarm information is used for indicating that the fourth target disconnecting link has abnormal operation.
Specifically, the controller analyzes the second temperature information to obtain the temperature of each phase of the disconnecting link, and determines the temperature rise rate of each phase of the disconnecting link as the second temperature rise rate based on the temperatures obtained for multiple times. Specifically, the second temperature-rising rate may be an average rate obtained by performing linear fitting on the temperatures acquired for multiple times, or may be an instantaneous rate obtained by performing curve fitting on the temperatures acquired for multiple times and deriving a curve at a certain time, which is not limited in this embodiment of the present invention.
And when the second temperature rise rate is the average rate, judging the relation between the average temperature rise rate of the disconnecting link of each phase and the second rate threshold, and taking the disconnecting link with the average temperature rise rate larger than the second rate threshold as a fourth target disconnecting link.
And when the second temperature rise rate is the instantaneous rate, determining the instantaneous rate at each moment, judging the relation between the instantaneous temperature rise rate of each phase of disconnecting link and the second rate threshold, and taking the disconnecting link of which the instantaneous temperature rise rate is greater than the second rate threshold as a fourth target disconnecting link.
In other embodiments of the present invention, it is also possible to determine whether there is an abnormal operation of the knife switch by calculating the temperature difference between the two-phase knife switches. Specifically, the method comprises the following steps:
determining the temperature of each phase of disconnecting link according to the second temperature information;
determining a fifth target switch with the lowest temperature in the switches of all phases;
respectively calculating the temperature difference of the temperatures of the other two disconnecting links relative to the reference temperature by taking the temperature of the fifth target disconnecting link as the reference temperature;
determining a sixth target knife switch of which the temperature difference with the fifth target knife switch is larger than the temperature difference threshold value from the other two phases of knife switches;
and sending a fifth alarm control signal to the alarm device, and controlling the alarm device to send fifth alarm information, wherein the fifth alarm information is used for indicating that the sixth target disconnecting link has abnormal operation.
Specifically, after receiving the second temperature information, the controller analyzes the second temperature information to obtain the temperature of each knife switch. And taking the one-phase disconnecting link with the lowest temperature in the three-phase disconnecting links as a fifth target disconnecting link. And taking the temperature of the fifth target knife switch as a reference temperature, and respectively calculating the temperature difference of the temperatures of the other two knife switches relative to the reference temperature. And comparing the temperature difference between the two phase disconnecting links and the reference temperature with a temperature difference threshold value respectively, and determining a sixth target disconnecting link of which the temperature difference with the reference temperature is greater than the temperature difference threshold value. And sending a fifth alarm control signal to the alarm device, and controlling the alarm device to send fifth alarm information, wherein the fifth alarm information is used for indicating that the sixth target disconnecting link has abnormal operation.
It should be noted that, in the above embodiment, the method for determining whether the knife switch has the abnormal operation may be one of the above methods (for example, determining whether the knife switch has the abnormal operation only by temperature, temperature rise rate or temperature difference), or may be two or more of the above methods (determining whether the knife switch has the abnormal operation by temperature, temperature rise rate and temperature difference), and the present invention is not limited herein.
According to the GIS disconnecting link detection method provided by the embodiment of the invention, after a switching-on deflection signal is received, a switching-on detection mode is switched; acquiring first temperature information of a three-phase disconnecting link in a closing detection mode; determining whether the three-phase disconnecting link is switched on in place or not based on the first temperature information; when the fact that the three-phase disconnecting link is switched in place and the duration of the switching-on detection mode reaches the preset duration is determined, switching to an operation monitoring mode; acquiring second temperature information of the three-phase disconnecting link in an operation monitoring mode; and determining whether the three-phase disconnecting link has abnormal operation or not based on the second temperature information. By detecting the temperature information of the three-phase disconnecting link, whether the three-phase disconnecting link is switched on in place or not and whether the three-phase disconnecting link is abnormal or not in the operation process are determined, the disconnecting link position detection and the operation state monitoring of the closed GIS disconnecting link equipment are achieved, and the fault detection efficiency is improved.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a GIS disconnecting link detecting device according to a third embodiment of the present invention, where the GIS disconnecting link detecting device according to the third embodiment of the present invention is applied to a controller, and as shown in fig. 3, the device may specifically include:
the first switching module 301 is configured to switch to a closing detection mode after receiving a closing displacement signal;
a first temperature information obtaining module 302, configured to obtain first temperature information of the three-phase disconnecting link in the closing detection mode;
a closing in-place determining module 303, configured to determine whether the three-phase disconnecting link is in place to be closed based on the first temperature information;
the second switching module 304 is configured to switch to the operation monitoring mode when it is determined that the three-phase disconnecting link is switched in place and the duration of the switching detection mode reaches a preset duration;
a second temperature information obtaining module 305, configured to obtain second temperature information of the three-phase disconnecting link in the operation monitoring mode;
and an abnormal operation determining module 306, configured to determine whether an abnormal operation exists in the three-phase disconnecting link based on the second temperature information.
In some embodiments of the present invention, the closing position determining module 303 includes:
the first temperature rise rate calculation unit is used for calculating the first temperature rise rate of each phase of disconnecting link according to the first temperature information;
The first target disconnecting link determining unit is used for determining a first target disconnecting link of which the first temperature rise rate is greater than a first rate threshold;
the first alarm control signal sending unit is used for sending a first alarm control signal to the alarm device and controlling the alarm device to send first alarm information, and the first alarm information is used for indicating that the first target disconnecting link is not in place to be switched on.
In some embodiments of the present invention, the closing-in-place determining module 303 is further configured to:
calculating a first temperature rise rate of each phase of disconnecting link according to the first temperature information;
determining a second target knife switch with the first temperature rise rate being zero;
and sending a second alarm control signal to an alarm device, and controlling the alarm device to send second alarm information, wherein the second alarm information is used for indicating that the second target disconnecting link is not switched on.
In some embodiments of the present invention, the operational anomaly determination module 306 comprises:
the temperature determining unit is used for determining the temperature of each phase of disconnecting link according to the second temperature information;
the third target disconnecting link determining unit is used for determining a third target disconnecting link of which the temperature is greater than the temperature threshold;
and the third alarm control signal sending unit is used for sending a third alarm control signal to the alarm device and controlling the alarm device to send third alarm information, and the third alarm information is used for indicating that the third target disconnecting link has abnormal operation.
In some embodiments of the present invention, the operational anomaly determination module 306 is further configured to:
calculating a second temperature rise rate of each phase of disconnecting link according to the second temperature information;
determining a fourth target knife switch with the second temperature rise rate larger than a second rate threshold;
and sending a fourth alarm control signal to an alarm device, and controlling the alarm device to send fourth alarm information, wherein the fourth alarm information is used for indicating that the fourth target disconnecting link has abnormal operation.
In some embodiments of the present invention, the operational anomaly determination module 306 is further configured to:
determining the temperature of each phase of disconnecting link according to the second temperature information;
determining a fifth target switch with the lowest temperature in the switches of all phases;
respectively calculating the temperature difference of the temperatures of the other two phases of disconnecting links relative to the reference temperature by taking the temperature of the fifth target disconnecting link as the reference temperature;
determining a sixth target knife switch with the temperature difference between the sixth target knife switch and the fifth target knife switch larger than a temperature difference threshold value from the other two phases of knife switches;
and sending a fifth alarm control signal to an alarm device, and controlling the alarm device to send fifth alarm information, wherein the fifth alarm information is used for indicating that the sixth target disconnecting link has abnormal operation.
The GIS disconnecting link detection device can execute the method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.
Example four
An embodiment of the present invention fourth provides a GIS switch detection system, and fig. 4 is a schematic structural diagram of the GIS switch detection system provided in the embodiment of the present invention, as shown in fig. 4, the system includes: a cable type temperature sensor 401, an information collector 402, a controller 403 and an alarm 404.
Specifically, the cable type temperature sensor 401 is wound on a sleeve at the position of the GIS disconnecting link and used for collecting temperature information of the three-phase disconnecting link in real time.
The information collector 402 is respectively connected to the cable type temperature sensor 401 and the controller 403, and is configured to receive temperature information collected by the cable type temperature sensor 401, receive a closing displacement signal, and forward the temperature information and the closing displacement signal to the controller 403.
The alarm 404 is connected to the controller 403, and is configured to receive an alarm control signal sent by the controller 403 and send an alarm message.
The controller 403 is configured to perform the GIS switch detection method as provided by any of the above embodiments of the invention.
Specifically, the method comprises the following steps:
after receiving a switching-on deflection signal, switching to a switching-on detection mode;
acquiring first temperature information of the three-phase disconnecting link in the closing detection mode;
determining whether the three-phase disconnecting link is switched on in place or not based on the first temperature information;
When the fact that the three-phase disconnecting link is switched in place and the duration of the switching-on detection mode reaches the preset duration is determined, switching to an operation monitoring mode;
acquiring second temperature information of the three-phase disconnecting link in the operation monitoring mode;
and determining whether the three-phase disconnecting link has abnormal operation or not based on the second temperature information.
The GIS disconnecting link detection system can execute the method provided by any embodiment of the invention and has the corresponding functional modules and beneficial effects of the execution method.
EXAMPLE five
An embodiment of the present invention provides a computer device, and fig. 5 is a schematic structural diagram of the computer device provided in the embodiment of the present invention, as shown in fig. 5, the computer device includes:
a processor 501, a memory 502, a communication module 503, an input device 504, and an output device 505; the number of the processors 501 in the computer device may be one or more, and one processor 501 is taken as an example in fig. 5; the processor 501, the memory 502, the communication module 503, the input device 504 and the output device 505 in the computer apparatus may be connected by a bus or other means, and the connection by the bus is exemplified in fig. 5. The processor 501, the memory 502, the communication module 503, the input device 504 and the output device 505 may be integrated on a computer apparatus.
The memory 502 is a computer-readable storage medium, and can be used to store software programs, computer-executable programs, and modules, such as the modules corresponding to the GIS knife switch detection method in the above embodiments. The processor 501 executes various functional applications and data processing of the computer device by running the software programs, instructions and modules stored in the memory 502, so as to implement the GIS disconnecting link detection method.
The memory 502 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the microcomputer, and the like. Further, the memory 502 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, memory 502 may further include memory located remotely from processor 501, which may be connected to an electronic device through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The communication module 503 is configured to establish a connection with an external device (e.g., a smart terminal), and implement data interaction with the external device. The input device 504 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function controls of the computer apparatus.
The computer device provided by this embodiment of the present invention can execute the GIS disconnecting link detection method provided by any of the above embodiments of the present invention, and has corresponding functions and beneficial effects.
EXAMPLE six
A sixth embodiment of the present invention provides a storage medium containing computer-executable instructions, where a computer program is stored on the storage medium, and when the computer program is executed by a processor, the method for detecting a GIS switch provided in any of the above embodiments of the present invention is implemented.
Of course, the storage medium provided by the embodiment of the present invention contains computer-executable instructions, and the computer-executable instructions are not limited to the operations of the method described above, and may also perform related operations in the GIS disconnecting link detection method provided by the embodiment of the present invention.
It should be noted that, as for the apparatus, the device and the storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and in relevant places, reference may be made to the partial description of the method embodiments.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solution of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions to enable a computer device (which may be a robot, a personal computer, a server, or a network device) to execute the GIS knife gate detection method according to any embodiment of the present invention.
It should be noted that, in the above apparatus, each included module and unit are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, the specific names of the functional modules are only for convenience of distinguishing from each other and are not used for limiting the protection scope of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by suitable instruction execution devices. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A GIS disconnecting link detection method is characterized by comprising the following steps:
after receiving a switching-on deflection signal, switching to a switching-on detection mode;
acquiring first temperature information of the three-phase disconnecting link in the closing detection mode;
determining whether the three-phase disconnecting link is switched on in place or not based on the first temperature information;
when the fact that the three-phase disconnecting link is switched in place and the duration of the switching-on detection mode reaches the preset duration is determined, switching to an operation monitoring mode;
acquiring second temperature information of the three-phase disconnecting link in the operation monitoring mode;
And determining whether the three-phase disconnecting link has abnormal operation or not based on the second temperature information.
2. The GIS knife switch detection method of claim 1, wherein the determining whether the three-phase knife switch is switched on in place based on the first temperature information comprises:
calculating a first temperature rise rate of each phase of disconnecting link according to the first temperature information;
determining a first target switch for which the first rate of temperature rise is greater than a first rate threshold;
and sending a first alarm control signal to an alarm device, and controlling the alarm device to send first alarm information, wherein the first alarm information is used for indicating that the first target disconnecting link is not in place to be switched on.
3. The GIS switch detection method of claim 1, wherein determining whether a three-phase switch is in place based on the first temperature information further comprises:
calculating a first temperature rise rate of each phase of disconnecting link according to the first temperature information;
determining a second target knife switch with the first temperature rise rate being zero;
and sending a second alarm control signal to an alarm device, and controlling the alarm device to send second alarm information, wherein the second alarm information is used for indicating that the second target disconnecting link is not switched on.
4. The GIS switch detection method of any of claims 1-3, wherein the determining whether the three-phase switch has an abnormal operation based on the second temperature information comprises:
Determining the temperature of each phase of disconnecting link according to the second temperature information;
determining a third target knife switch with the temperature greater than the temperature threshold;
and sending a third alarm control signal to an alarm device, and controlling the alarm device to send third alarm information, wherein the third alarm information is used for indicating that the third target disconnecting link has abnormal operation.
5. The GIS switch detection method of any of claims 1-3, wherein the determining whether the three-phase switch has an abnormal operation based on the second temperature information comprises:
calculating a second temperature rise rate of each phase of disconnecting link according to the second temperature information;
determining a fourth target knife switch with the second temperature rise rate larger than a second rate threshold;
and sending a fourth alarm control signal to an alarm device, and controlling the alarm device to send fourth alarm information, wherein the fourth alarm information is used for indicating that the fourth target disconnecting link has abnormal operation.
6. The GIS switch detection method of any of claims 1-3, wherein the determining whether the three-phase switch has an abnormal operation based on the second temperature information comprises:
determining the temperature of each phase of disconnecting link according to the second temperature information;
Determining a fifth target switch with the lowest temperature in the switches of all phases;
respectively calculating the temperature difference of the temperatures of the other two phases of disconnecting links relative to the reference temperature by taking the temperature of the fifth target disconnecting link as the reference temperature;
determining a sixth target knife switch with the temperature difference between the sixth target knife switch and the fifth target knife switch larger than a temperature difference threshold value from the other two phases of knife switches;
and sending a fifth alarm control signal to an alarm device, and controlling the alarm device to send fifth alarm information, wherein the fifth alarm information is used for indicating that the sixth target disconnecting link has abnormal operation.
7. The utility model provides a GIS switch detection device which characterized in that includes:
the first switching module is used for switching to a closing detection mode after receiving a closing displacement signal;
the first temperature information acquisition module is used for acquiring first temperature information of the three-phase disconnecting link in the switching detection mode;
the switching-on in-place determining module is used for determining whether the three-phase disconnecting link is switched on in place or not based on the first temperature information;
the second switching module is used for switching to an operation monitoring mode when the fact that the three-phase disconnecting link is switched in place and the duration of the switching detection mode reaches a preset duration is determined;
the second temperature information acquisition module is used for acquiring second temperature information of the three-phase disconnecting link in the operation monitoring mode;
And the abnormal operation determining module is used for determining whether the three-phase disconnecting link has abnormal operation or not based on the second temperature information.
8. A GIS switch detecting system, characterized by comprising: the system comprises a cable type temperature sensor, an information collector, a controller and an alarm;
the cable type temperature sensor is wound on the sleeve at the position of the GIS disconnecting link and used for acquiring the temperature information of the three-phase disconnecting link in real time;
the information collector is respectively connected with the cable type temperature sensor and the controller and is used for receiving temperature information collected by the cable type temperature sensor and receiving a closing deflection signal;
the alarm is connected with the controller and used for receiving an alarm control signal sent by the controller;
the controller is configured to perform the GIS switch detection method of any of claims 1-6.
9. A computer device, comprising:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the GIS switch detection method of any of claims 1-6.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the GIS switch detection method according to any one of claims 1 to 6.
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