CN112165164B - Switch stealing and jumping judgment method and device and storage medium - Google Patents
Switch stealing and jumping judgment method and device and storage medium Download PDFInfo
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- CN112165164B CN112165164B CN202011003721.XA CN202011003721A CN112165164B CN 112165164 B CN112165164 B CN 112165164B CN 202011003721 A CN202011003721 A CN 202011003721A CN 112165164 B CN112165164 B CN 112165164B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
Abstract
The embodiment of the invention discloses a method and a device for judging switch stealing and jumping and a storage medium. The switch stealing trip judgment method comprises the following steps: after the detection device detects that the switch to be detected is switched on and switched off, judging whether the switch to be detected is in normal switching-off action according to at least one of the type of a transformer substation to which the switch to be detected belongs, the overhaul state of the switch to be detected, a control instruction related to the switch to be detected, the switching-on and switching-off judgment accuracy of the detection device and the remote signaling power state of a measurement and control device to which the switch to be detected belongs; if not, judging that the switch to be tested generates the stealing jump and outputting a prompt signal. Therefore, whether the switch is stolen or not can be judged in time, and a prompt signal is output when the switch is stolen, so that a worker can find out the reason of switch dislocation in time, and the damage caused by the switch stealing can be avoided.
Description
Technical Field
The embodiment of the invention relates to the field of power dispatching automation control, in particular to a switch stealing and jumping judgment method, a switch stealing and jumping judgment device and a storage medium.
Background
Due to factors such as manufacturing process of switch equipment or defects of other equipment, the high-voltage switch of the power system frequently generates a phenomenon of stealing trip, and particularly, a phenomenon of stealing trip of the 10kV switch frequently occurs. The switch stealing and jumping are not easy to find, so that the power dispatching automation master station system can mistakenly consider normal switch division, the switch tripping alarm cannot be given, a dispatcher cannot find the power supply interruption of the line for a long time after the switch division, and the severe social influence can be caused by the long-time interruption of the power supply of a user. Therefore, in order to ensure the safety of the power system, it is particularly necessary to automatically judge and analyze the switch stealing of the power system.
Disclosure of Invention
The invention provides a switch stealing trip judging method, a judging device and a storage medium, which are used for judging the switch stealing trip phenomenon in time and giving a prompt, so that the damage caused by the switch stealing trip can be avoided.
In a first aspect, an embodiment of the present invention provides a method for judging switch stealing, where the method includes:
after a detection device detects that a switch to be detected is switched on and off, judging whether the switch to be detected is in normal switching-off action according to at least one of the type of a transformer substation to which the switch to be detected belongs, the overhaul state of the switch to be detected, a control instruction related to the switch to be detected, the switching-on and switching-off judgment accuracy of the detection device and the remote signaling power state of a measurement and control device to which the switch to be detected belongs;
if not, judging that the switch to be tested generates the stealing trip and outputting a prompt signal.
In a second aspect, an embodiment of the present invention further provides a switch stealing trip judging device, where the switch stealing trip judging device includes:
the switch tripping judging module is used for judging whether the switch to be detected is in normal switching-off action or not according to at least one of the type of a transformer substation to which the switch to be detected belongs, the overhauling state of the switch to be detected, a control instruction related to the switch to be detected, the switching-on and switching-off judging accuracy of the detecting device and the remote signaling power state of a measurement and control device to which the switch to be detected belongs after the detecting device detects that the switch to be detected is switched on and off;
and if not, judging that the switch to be tested generates stealing tripping and outputting a prompt signal.
In a third 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 method for determining switch stealing trip according to the first aspect.
The invention provides a switch stealing and jumping judgment method, which comprises the following steps: after the detection device detects that the switch to be detected is switched on and off, judging whether the switch to be detected is in normal switching-off action or not according to at least one of the type of a transformer substation to which the switch to be detected belongs, the overhaul state of the switch to be detected, a control instruction related to the switch to be detected, switching-on and switching-off judgment accuracy of the detection device and a remote signaling power state of a measurement and control device to which the switch to be detected belongs; if not, judging that the switch to be tested generates the stealing trip and outputting a prompt signal. Therefore, whether the switch is stolen or not can be judged in time, and a prompt signal is output when the switch is stolen, so that a worker can find out the reason of switch dislocation in time, and the damage caused by the switch stealing can be avoided.
Drawings
Fig. 1 is a flowchart of a method for determining a switch skip stealing in a first embodiment of the present invention;
fig. 2 is a flowchart of a switch stealing trip determination method in the second embodiment of the present invention;
fig. 3 is a flowchart of a method for determining switch stealing trip in the third embodiment of the present invention;
fig. 4 is a flowchart of a method for determining switch stealing trip in the fourth embodiment of the present invention;
fig. 5 is a flowchart of a method for determining a switch skip stealing in a fifth embodiment of the present invention;
fig. 6 is a flowchart of a method for determining switch stealing trip in a sixth embodiment of the present invention;
fig. 7 is a general flowchart of a method for determining switch stealing in a seventh 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 method for judging switch stealing trip provided in an embodiment of the present invention, where this embodiment is applicable to an implementation process of the switch stealing trip judgment, and the method may be executed by a switch stealing trip judgment device, and with reference to fig. 1, the method specifically includes the following steps:
The detection device may be a current detection device, and the opening/closing state of the switch to be detected may be detected by detecting whether a current flows through the switch to be detected, for example, when it is detected that no current flows through the switch to be detected, the switch is considered to be opened.
And 200, if not, judging that the switch to be tested has the stealing trip and outputting a prompt signal.
The prompt signal can be text display information, voice prompt information, acousto-optic signal and the like.
If yes, judging that the switch to be tested does not generate the stealing jump and keeping a judgment log.
In the technical scheme of this embodiment, the working principle of the method for judging switch stealing trip is as follows: and when the detection device detects that the switch to be detected is changed from switching on to switching off, judging whether the switch to be detected is in normal switching off action according to at least one of the type of the transformer substation to which the switch to be detected belongs, the overhaul state of the switch to be detected, a control instruction related to the switch to be detected, the switching-on and switching-off judgment accuracy of the detection device and the remote signaling power state of the measurement and control device to which the switch to be detected belongs. For example, when the switch to be tested can be judged to be in a normal opening action according to the type of the transformer substation to which the switch to be tested belongs, the switch to be tested can be analyzed to be in a normal opening action from closing to opening without judging the overhaul state of the switch to be tested, the control instruction related to the switch to be tested, the opening and closing judgment accuracy of the detection device and the remote signaling power state of the measurement and control device to which the switch to be tested belongs, and the switch to be tested does not belong to switch tripping; if the switch to be tested is judged to be abnormal opening action according to the type of the transformer substation to which the switch to be tested belongs, at least one of the overhaul state of the switch to be tested, a control instruction related to the switch to be tested, opening and closing judgment accuracy of the detection device and a remote signaling power state of the measurement and control device to which the switch to be tested belongs needs to be continuously judged. When the switch to be tested can be judged to be in normal opening action according to the maintenance state of the switch to be tested, the normal opening action of the switch to be tested from closing to opening can be analyzed without judging a control instruction related to the switch to be tested, the opening and closing judgment accuracy of a detection device and the remote signaling power state of a measurement and control device to which the switch to be tested belongs, and the switch to be tested is not in switch stealing and tripping; if the switch to be tested is judged to be abnormal opening action according to the maintenance state of the switch to be tested, at least one of a control instruction related to the switch to be tested, opening and closing judgment accuracy of the detection device and a remote signaling power supply state of the measurement and control device to which the switch to be tested belongs needs to be continuously judged. When the switch to be tested is judged to be in a normal switching-off action according to the control instruction related to the switch to be tested, the normal switching-off action of the switch to be tested from switching-on to switching-off can be analyzed without judging the switching-on and switching-off judgment accuracy of the detection device and the remote signaling power state of the measurement and control device to which the switch to be tested belongs, and the switch to be tested is not subjected to switch stealing and tripping; and if the switch to be tested is judged to be abnormal opening according to the control instruction related to the switch to be tested, at least one of the opening and closing judgment accuracy of the detection device and the remote signaling power state of the measurement and control device to which the switch to be tested belongs needs to be continuously judged. When the switch to be tested is judged to be in a normal switching-off action according to the switching-on and switching-off judgment accuracy of the detection device, the normal switching-off action of the switch to be tested from switching-on to switching-off can be analyzed without judging the remote signaling power state of the measurement and control device to which the switch to be tested belongs, and the switch to be tested does not belong to switch tripping; and if the switch to be tested is judged to be abnormally opened according to the opening and closing judgment accuracy of the detection device, the remote signaling power supply state of the measurement and control device to which the switch to be tested belongs needs to be continuously judged. When the switch to be tested can be judged to be in normal opening action according to the remote signaling power state of the measurement and control device to which the switch to be tested belongs, the switch to be tested belongs to normal opening action from closing to opening and does not belong to switch tripping; if the switch to be tested is judged to be abnormal opening action according to the remote signaling power state of the measurement and control device to which the switch to be tested belongs, and the switch to be tested is judged to be abnormal opening action according to the type of the transformer substation to which the switch to be tested belongs, the overhaul state of the switch to be tested, the control instruction related to the switch to be tested and the opening and closing judgment accuracy of the detection device, the phenomenon that the switch to be tested is the switch tripping phenomenon from closing to opening can be judged, a prompt signal is output to warn related personnel to take protective measures, and therefore normal power supply of a power system is guaranteed.
It should be noted that, after the detection device detects that the switch to be detected is changed from closing to opening, whether the switch to be detected is in the normal opening action or not is judged according to at least one of the substation type to which the switch to be detected belongs, the maintenance state of the switch to be detected, the control instruction related to the switch to be detected, and the control instruction related to the switch to be detected, where the switch to be detected is judged to be in the normal opening action or not, and the remote signaling power state of the measurement and control device to which the switch to be detected belongs is judged according to at least one of the opening and closing judgment accuracy of the detection device and the remote signaling power state of the measurement and control device to which the switch to be detected belongs, where the substation type to which the switch to be detected belongs, the maintenance state of the switch to be detected, the control instruction related to the switch to be detected, the opening and closing judgment accuracy of the detection device, and the signaling power state of the measurement and control device to which the switch to be detected belong are not in sequence, and the order here is only for exemplary description.
According to the technical scheme of the embodiment, the switch stealing trip judgment method is provided and comprises the following steps: after the detection device detects that the switch to be detected is switched on and switched off, judging whether the switch to be detected is in normal switching-off action according to at least one of the type of a transformer substation to which the switch to be detected belongs, the overhaul state of the switch to be detected, a control instruction related to the switch to be detected, the switching-on and switching-off judgment accuracy of the detection device and the remote signaling power state of a measurement and control device to which the switch to be detected belongs; if not, judging that the switch to be tested generates the stealing jump and outputting a prompt signal. Therefore, whether the switch is stolen or not can be judged in time, and a prompt signal is output when the switch is stolen, so that a worker can find out the reason of switch dislocation in time, and the damage caused by the switch stealing can be avoided.
Example two
Fig. 2 is a flowchart of a switch tripping judging method provided in the second embodiment of the present invention, where after the detecting device detects that the switch to be detected is switched from on to off, whether the switch to be detected is normally switched off is judged according to at least one of a substation type to which the switch to be detected belongs, an overhaul state of the switch to be detected, a control instruction related to the switch to be detected, switching-on/off judgment accuracy of the detecting device, and a telecommand power state of a measurement and control device to which the switch to be detected belongs, and the method further includes the following steps:
And step 120, when the transformer substation type to which the switch to be tested belongs is a manned transformer substation, judging that the switch to be tested is in normal brake opening action.
The transformer substation on duty has professional on-duty personnel to perform on-off operation, monitoring and other tasks of the switch. Therefore, after the detection device detects that the switch to be detected is switched on and off, when the type of the transformer substation to which the switch to be detected belongs is an on-duty transformer substation, the switch to be detected can be judged to be in normal switching-off action from switching on to switching off, and the switch to be detected does not belong to switch tripping.
And step 130, when the type of the transformer substation to which the switch to be tested belongs is an unattended transformer substation, continuously judging whether the switch to be tested is in a normal opening action according to at least one of the overhaul state of the switch to be tested, the control instruction related to the switch to be tested, the opening and closing judgment accuracy of the detection device and the remote signaling power state of the measurement and control device to which the switch to be tested belongs.
When the type of the transformer substation to which the switch to be tested belongs is judged to be an unattended transformer substation, the result that the switch to be tested is not operated by an attendant of the transformer substation from closing to opening is shown, and therefore whether the switch to be tested is normally opened or not is continuously judged according to at least one of the overhaul state of the switch to be tested, a control instruction related to the switch to be tested, the opening and closing judgment accuracy of the detection device and the remote signaling power state of the measurement and control device to which the switch to be tested belongs. The maintenance state of the switch to be tested, the control instruction related to the switch to be tested, the opening and closing judgment accuracy of the detection device and the remote signaling power state sequence of the measurement and control device to which the switch to be tested belongs are not in sequence.
And 200, if not, judging that the switch to be tested generates stealing trip and outputting a prompt signal.
EXAMPLE III
Fig. 3 is a flowchart of a method for determining switch tripping according to a third embodiment of the present invention, where after the detection device detects that the switch to be detected is switched from on to off, it determines whether the switch to be detected is normally switched off according to at least one of a type of a substation to which the switch to be detected belongs, an overhaul state of the switch to be detected, a control instruction related to the switch to be detected, switching-on/off determination accuracy of the detection device, and a telecommand power state of a measurement and control device to which the switch to be detected belongs, and the method further includes the following steps:
And step 220, when the maintenance state of the switch to be tested is the hanging maintenance board, judging that the switch to be tested is in normal brake opening action.
When the overhaul state of the switch to be tested is the hanging overhaul board, the switch to be tested is in the overhaul state, and at the moment, the switch is switched on to switched off, or the switch is switched off to switched on due to overhaul, the normal switching-off action is achieved, and the judgment of the switch stealing and tripping is not achieved.
And step 230, when the maintenance state of the switch to be tested is that the maintenance board is not hung, continuously judging whether the switch to be tested is in a normal opening action according to at least one of the type of the transformer substation to which the switch to be tested belongs, the control instruction related to the switch to be tested, the opening and closing judgment accuracy of the detection device and the remote signaling power state of the measurement and control device to which the switch to be tested belongs.
When the maintenance state of the switch to be tested is judged to be the maintenance plate which is not hung, the result that the switch to be tested is not caused by maintenance operation from closing to opening is shown, and therefore whether the switch to be tested is normally opened or not is continuously judged according to at least one of the type of the transformer substation to which the switch to be tested belongs, the control instruction related to the switch to be tested, the opening and closing judgment accuracy of the detection device and the telecommand power state of the measurement and control device to which the switch to be tested belongs. The type of the transformer substation to which the switch to be tested belongs, the control instruction related to the switch to be tested, the opening and closing judgment accuracy of the detection device and the remote signaling power state sequence of the measurement and control device to which the switch to be tested belongs are not in sequence.
And 200, if not, judging that the switch to be tested generates stealing trip and outputting a prompt signal.
Example four
Fig. 4 is a flowchart of a switch tripping judging method provided in the fourth embodiment of the present invention, where after the detecting device detects that the switch to be detected is switched from on to off, whether the switch to be detected is normally switched off is judged according to at least one of a substation type to which the switch to be detected belongs, an overhaul state of the switch to be detected, a control instruction related to the switch to be detected, switching-on/off judgment accuracy of the detecting device, and a telecommand power state of a measurement and control device to which the switch to be detected belongs, and the method includes the following steps:
And step 320, if the switch to be tested is switched off under any one of the remote control switching-off instruction, the instruction of the dispatching command platform related to the switch to be tested and the interval protection action instruction of the switch to be tested, judging that the switch to be tested is in normal switching-off action.
The method for judging according to the remote control brake-separating instruction can be as follows: and inquiring whether a remote control opening record exists in a scheduling master station in a time period from 10 minutes before the opening of the switch to be tested to the opening, and if the remote control opening record exists, indicating that the opening of the switch to be tested belongs to normal opening action and does not belong to switch tripping.
The instruction judgment method related to the switch to be tested according to the dispatching command platform can be as follows: and inquiring whether an electronic command sent by the dispatching command platform relates to the switch to be tested within a time period from 30 minutes before the switch to be tested is switched off to switching off, and if so, indicating that the switching off of the switch to be tested belongs to normal switching-off action and does not belong to switch tripping.
The method for judging the protection action command according to the interval to which the switch to be tested belongs can be as follows: and inquiring whether the dispatching master station receives an interval protection action instruction belonging to the switch to be tested in a time period from 3 minutes before the switch stealing jump judgment process is started to the starting judgment, if so, indicating that the switch to be tested belongs to the normal switching-off action and does not belong to the switch stealing jump.
It should be noted that if the switch to be tested performs the opening operation under any one of the remote opening instruction, the instruction related to the switch to be tested by the dispatching command platform, and the interval protection operation instruction to which the switch to be tested belongs, it can be determined that the switch to be tested performs the normal opening operation.
And step 330, if the switch to be tested is not switched off under any instruction in the remote control switching-off instruction, the instruction of the dispatching command platform related to the switch to be tested and the interval protection action instruction of the switch to be tested, continuously judging whether the switch to be tested is in normal switching-off action according to at least one of the type of the transformer substation to which the switch to be tested belongs, the overhaul state of the switch to be tested, the switching-off and switching-on judgment accuracy of the detection device and the remote signaling power state of the measurement and control device to which the switch to be tested belongs.
If the switch to be tested is not subjected to switching-off under any instruction in the remote control switching-off instruction, the dispatching command platform related to the switch to be tested and the interval protection action instruction to which the switch to be tested belongs, it is described that the switching-off action of the switch to be tested is not caused by the control instruction related to the switch to be tested, and therefore whether the switch to be tested is in normal switching-off action or not needs to be continuously judged according to at least one of the type of the transformer substation to which the switch to be tested belongs, the overhaul state of the switch to be tested, the switching-off and switching-on judgment accuracy of the detection device and the telecommand power state of the measurement and control device to which the switch to be tested belongs. The type of the transformer substation to which the switch to be tested belongs, the overhaul state of the switch to be tested, the opening and closing judgment accuracy of the detection device and the remote signaling power state of the measurement and control device to which the switch to be tested belongs are not in sequence.
And 200, if not, judging that the switch to be tested generates stealing trip and outputting a prompt signal.
EXAMPLE five
Fig. 5 is a flowchart of a method for determining switch tripping according to a fifth embodiment of the present invention, where after the detection device detects that the switch to be detected is switched from on to off, it determines whether the switch to be detected is normally switched off according to at least one of a substation type to which the switch to be detected belongs, an overhaul state of the switch to be detected, a control instruction related to the switch to be detected, switching-on/off determination accuracy of the detection device, and a telecommand power state of a measurement and control device to which the switch to be detected belongs, and the method further includes the following steps:
The signal of the switch to be tested detected by the detection device from closing to opening may be a result of erroneous judgment caused by a judgment error of the detection device, so that the judgment accuracy of the detection device needs to be judged to avoid loss caused by the erroneous judgment.
And step 420, if the opening and closing of the detection device are judged to be wrong, judging that the switch to be detected is not stolen.
If the switching-on and switching-off judgment of the detection device is judged to have a judgment error, the judgment of the detection device is misjudged, and the switch to be detected is in a switching-on state even if switching-off does not occur actually, so that the switching-on and switching-off of the switch to be detected can be eliminated.
And 430, if the switching-on and switching-off of the detection device are judged to be accurate, continuing to judge whether the switch to be detected is in normal switching-off action according to at least one of the type of the transformer substation to which the switch to be detected belongs, the overhaul state of the switch to be detected, a control instruction related to the switch to be detected and the remote signaling power state of the measurement and control device to which the switch to be detected belongs.
The type of the transformer substation to which the switch to be tested belongs, the overhaul state of the switch to be tested, the control instruction related to the switch to be tested and the remote signaling power state of the measurement and control device to which the switch to be tested belongs are not in sequence.
And 200, if not, judging that the switch to be tested generates stealing trip and outputting a prompt signal.
Optionally, determining the judgment accuracy of the detection apparatus according to the following ways includes:
after the switch to be detected is detected to be switched on and switched off, when the sum of the currents of the three-phase line where the switch to be detected is located is greater than or equal to the preset proportion of the full current code value of the switch to be detected, the judgment accuracy of the detection device is judged to be a judgment error, and the fact that the switch to be detected is not switched off actually and is still in a switched-on state is indicated, namely the fact that the switch to be detected is not subjected to tripping under stealing.
After the switch to be detected is detected to be switched on and switched off, when the sum of the currents of the three-phase line where the switch to be detected is located is smaller than the preset proportion of the full current code value of the switch to be detected, the judgment accuracy of the detection device is judged to be accurate.
The current of the three-phase line where the switch to be tested is located is the current of the moment when the detection device detects that the switch to be tested is switched on and switched off. The current full code value of the switch to be tested is the phase current full code value of the phase line on which the switch to be tested is located, and particularly, the current full code value of which phase line does not need to be distinguished specifically, because in the current system, the current full code values of the three phase lines are all consistent, for example, when the current collected to the switch of a certain line is 1200/1, the phase current full code value thereof is 1200.
Alternatively, the preset ratio may be 2%, 3%, etc. It should be noted that, instead of directly determining whether the sum of the currents of the three-phase line in which the switch to be tested is located is greater than or equal to the preset ratio of the full current code value of the switch to be tested, the determination accuracy of the detection device is determined by using whether the sum of the currents of the three-phase line in which the switch to be tested is located is greater than or equal to zero.
EXAMPLE six
Fig. 6 is a flowchart of a method for determining switch tripping according to a sixth embodiment of the present invention, where after the detection device detects that the switch to be detected is switched from on to off, it determines whether the switch to be detected is normally tripped according to at least one of a type of a substation to which the switch to be detected belongs, an overhaul state of the switch to be detected, a control instruction related to the switch to be detected, switching-on/off determination accuracy of the detection device, and a telecommand power state of a measurement and control device to which the switch to be detected belongs, and the method further includes the following steps:
The remote signaling power supply is a remote signaling signal power supply of the measuring device, and is not a working power supply of the measuring and controlling device. When the remote signaling power supply of the measuring device loses power, the switch to be measured can be switched off, so that whether the state of the remote signaling power supply of the measuring and controlling device to which the switch to be measured belongs loses power or not is judged to avoid switch stealing and jumping misjudgment.
And 520, when the remote signaling power supply state of the measurement and control device is a power loss state, judging that the switch to be measured is in normal brake opening action.
The method for judging whether the remote signaling power supply state of the measurement and control device to which the switch to be tested belongs is power-off can be as follows: the method comprises the steps that an auxiliary contact signal of an air switch of a remote signaling power supply of a measuring and controlling device is collected, the collected auxiliary contact signal is connected to a public measuring and controlling device of a transformer substation, the public measuring and controlling device sends the signal to a scheduling master station through a remote motor, and the scheduling master station judges the received auxiliary contact signal, wherein the remote signaling auxiliary contact signal has two states, namely opening and closing, and if 0 represents opening and 1 represents closing, when the scheduling master station receives 0, the remote signaling power supply loses power; when the dispatching master station receives 1, the remote signaling power supply is not powered off.
And step 530, when the remote signaling power supply state of the measurement and control device is a non-power-loss state, continuously judging whether the switch to be detected is a normal opening action or not according to at least one of the type of the transformer substation to which the switch to be detected belongs, the overhaul state of the switch to be detected, the control instruction related to the switch to be detected and the opening and closing judgment accuracy of the detection device.
It should be noted that the sequence of the substation type to which the switch to be tested belongs, the overhaul state of the switch to be tested, the control instruction related to the switch to be tested, and the opening and closing judgment accuracy of the detection device is not different.
And 200, if not, judging that the switch to be tested generates stealing trip and outputting a prompt signal.
EXAMPLE seven
Fig. 7 is a general flowchart of a method for judging whether a switch is stolen or not according to a seventh embodiment of the present invention, where on the basis of the foregoing embodiment, the general flowchart of the method for judging whether the switch is stolen or not includes the following steps:
And step 70, judging whether the switch has the stealing jump and outputting prompt information, and finishing the judgment.
It should be noted that, in the execution sequence of this embodiment, the type of the substation to which the switch to be tested belongs, the maintenance state of the switch to be tested, the control instruction related to the switch to be tested, the opening/closing judgment accuracy of the detection device, and the judgment sequence of the remote signaling power supply state of the measurement and control device to which the switch to be tested belongs are not in sequence, and the sequencing is only for exemplary description here.
Optionally, after the detecting device detects that the switch to be tested is switched on to off, whether the switch to be tested is a normal switching-off action is determined according to at least one of the type of the substation to which the switch to be tested belongs, the maintenance state of the switch to be tested, a control instruction related to the switch to be tested, the switching-on/off determination accuracy of the detecting device, and the remote signaling power state of the measurement and control device to which the switch to be tested belongs, and the method includes:
after the detection device detects that the switch to be detected is switched on and switched off for a first preset time, whether the switch to be detected is normally switched off is judged according to at least one of the type of a transformer substation to which the switch to be detected belongs, the overhaul state of the switch to be detected, a control instruction related to the switch to be detected, the switching-on and switching-off judgment accuracy of the detection device and the remote signaling power state of a measurement and control device to which the switch to be detected belongs.
The switch stealing and tripping judgment is started after the detection device detects the first preset time from switching on to switching off of the switch to be detected, because the relevant telemetering signals, protection action signals and the like are stable after the first preset time after the switching off of the switch to be detected, and the acquisition of stable signals is favorable for improving the accuracy of switch stealing and tripping judgment.
Wherein, the first preset time can be 2 minutes, 2.5 minutes and the like.
Example eight
The embodiment of the invention also provides a switch stealing trip judging device, which comprises:
the switch tripping judging module is used for judging whether the switch to be detected is in normal tripping action or not according to at least one of the type of a transformer substation to which the switch to be detected belongs, the overhauling state of the switch to be detected, a control instruction related to the switch to be detected, the switching-on and switching-off judging accuracy of the detecting device and the remote signaling power state of a measurement and control device to which the switch to be detected belongs after the detecting device detects that the switch to be detected is switched on and off;
if not, judging that the switch to be tested generates the stealing trip and outputting a prompt signal.
According to the technical scheme of the embodiment, the switch tripping judging device comprises a switch tripping judging module, wherein the switch tripping judging module is used for judging whether the switch to be detected is in normal switching-off action or not according to at least one of the type of a transformer substation to which the switch to be detected belongs, the maintenance state of the switch to be detected, a control instruction related to the switch to be detected, the switching-off and switching-on judging accuracy of the detecting device and the telecommand power state of a measurement and control device to which the switch to be detected belongs after the detecting device detects that the switch to be detected is switched on and off; if not, judging that the switch to be tested generates the stealing trip and outputting a prompt signal. Therefore, whether the switch is stolen or not can be judged in time, and a prompt signal is output when the switch is stolen, so that a worker can find out the reason of switch dislocation in time, and the harm caused by the switch stealing can be avoided.
Example nine
An embodiment of the present invention further provides a storage medium containing computer-executable instructions, where the computer-executable instructions are executed by a computer processor to perform a method for determining switch stealing, and the method includes:
after the detection device detects that the switch to be detected is switched on and switched off, judging whether the switch to be detected is in normal switching-off action according to at least one of the type of a transformer substation to which the switch to be detected belongs, the overhaul state of the switch to be detected, a control instruction related to the switch to be detected, the switching-on and switching-off judgment accuracy of the detection device and the remote signaling power state of a measurement and control device to which the switch to be detected belongs;
if not, judging that the switch to be tested generates the stealing trip and outputting a prompt signal.
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 method for determining switch stealing-tripping provided by any embodiment of the present invention.
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 solutions of the present invention may be embodied in the form of a software product, which can 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 for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the switch stealing trip judging device, each included unit and module are only divided according to functional logic, but are not limited to the above division, as long as the corresponding function can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
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 (9)
1. A method for judging switch stealing trip is characterized by comprising the following steps:
after a detection device detects that a switch to be detected is switched on and off, judging whether the switch to be detected is in normal switching-off action according to at least one of the type of a transformer substation to which the switch to be detected belongs, the overhaul state of the switch to be detected, a control instruction related to the switch to be detected, the switching-on and switching-off judgment accuracy of the detection device and the remote signaling power state of a measurement and control device to which the switch to be detected belongs;
if not, judging that the switch to be tested generates the stealing trip and outputting a prompt signal;
after the detection device detects that the switch to be detected is switched on and off, whether the switch to be detected is a normal switching-off action or not is judged according to at least one of the type of a transformer substation to which the switch to be detected belongs, the overhaul state of the switch to be detected, a control instruction related to the switch to be detected, the switching-on and switching-off judgment accuracy of the detection device and the remote signaling power state of the measurement and control device to which the switch to be detected belongs, and the method comprises the following steps:
judging whether the switch to be tested is in normal opening action according to the opening and closing judgment accuracy of the detection device; the opening and closing judgment accuracy of the detection device comprises accurate judgment and wrong judgment;
if the switching-on and switching-off judgment accuracy of the detection device is a judgment error, judging that the switch to be detected is not in a stealing trip;
if the switching-on and switching-off judgment accuracy of the detection device is accurate, whether the switch to be detected is in normal switching-off action or not is continuously judged according to at least one of the type of the transformer substation to which the switch to be detected belongs, the overhaul state of the switch to be detected, the control instruction related to the switch to be detected and the remote signaling power state of the measurement and control device to which the switch to be detected belongs.
2. The method for judging the switch tripping-stealing according to claim 1, wherein after the detection device detects that the switch to be tested is switched on and off, judging whether the switch to be tested is in a normal switching-off action according to at least one of a substation type to which the switch to be tested belongs, a maintenance state of the switch to be tested, a control instruction related to the switch to be tested, switching-on and switching-off judgment accuracy of the detection device, and a remote signaling power state of a measurement and control device to which the switch to be tested belongs comprises:
judging whether the switch to be tested is in normal switching-off action or not according to the type of the transformer substation to which the switch to be tested belongs; the type of the transformer substation to which the switch to be tested belongs comprises an on-duty transformer substation and an unattended transformer substation;
when the transformer substation type to which the switch to be tested belongs is a manned transformer substation, judging that the switch to be tested is in normal brake opening action;
when the type of the transformer substation to which the switch to be tested belongs is an unattended transformer substation, whether the switch to be tested is normally opened or not is continuously judged according to at least one of the overhaul state of the switch to be tested, the control instruction related to the switch to be tested, the opening and closing judgment accuracy of the detection device and the remote signaling power state of the measurement and control device to which the switch to be tested belongs.
3. The method for judging the switch tripping-stealing according to claim 1, wherein after the detection device detects that the switch to be tested is switched on and off, judging whether the switch to be tested is in a normal switching-off action according to at least one of a substation type to which the switch to be tested belongs, a maintenance state of the switch to be tested, a control instruction related to the switch to be tested, switching-on and switching-off judgment accuracy of the detection device, and a remote signaling power state of a measurement and control device to which the switch to be tested belongs comprises:
judging whether the switch to be tested is in normal brake opening action or not according to the maintenance state of the switch to be tested; the maintenance state of the switch to be tested comprises a hung maintenance board and an unwatched maintenance board;
when the maintenance state of the switch to be tested is the hanging maintenance board, judging that the switch to be tested is in normal brake opening action;
and when the maintenance state of the switch to be tested is the maintenance plate which is not hung, continuously judging whether the switch to be tested is in normal opening action according to at least one of the type of the transformer substation to which the switch to be tested belongs, the control instruction related to the switch to be tested, the opening and closing judgment accuracy of the detection device and the remote signaling power state of the measurement and control device to which the switch to be tested belongs.
4. The method for judging the switch tripping-stealing according to claim 1, wherein after the detection device detects that the switch to be tested is switched on and off, judging whether the switch to be tested is in a normal switching-off action according to at least one of a substation type to which the switch to be tested belongs, a maintenance state of the switch to be tested, a control instruction related to the switch to be tested, switching-on and switching-off judgment accuracy of the detection device, and a remote signaling power state of a measurement and control device to which the switch to be tested belongs comprises:
after the detection device detects that the switch to be detected is switched on and switched off, judging whether the switch to be detected is in normal switching-off action or not according to a control instruction related to the switch to be detected; the control instruction related to the switch to be tested comprises a remote control brake opening instruction, an instruction of a dispatching command platform related to the switch to be tested and an interval protection action instruction of the switch to be tested;
if the switch to be tested is opened under any one of a remote control opening instruction, an instruction of a dispatching command platform related to the switch to be tested and an interval protection action instruction of the switch to be tested, judging that the switch to be tested is in a normal opening action;
if the switch to be tested is not subjected to switching-off under any instruction in a remote control switching-off instruction, a command scheduling platform related to the switch to be tested and an interval protection action instruction to which the switch to be tested belongs, whether the switch to be tested is in normal switching-off action or not is judged continuously according to at least one of the type of the transformer substation to which the switch to be tested belongs, the maintenance state of the switch to be tested, the switching-off and switching-on judgment accuracy of the detection device and the remote signaling power state of the measurement and control device to which the switch to be tested belongs.
5. The switch tripping judging method according to claim 1, wherein the judgment of the switching-on and switching-off judgment accuracy of the detection device comprises the following steps:
after the switch to be detected is detected to be switched on and switched off, when the sum of the currents of the three-phase circuit where the switch to be detected is located is greater than or equal to the preset proportion of the current full code value of the switch to be detected, judging the switching-on and switching-off judgment accuracy of the detection device as a judgment error;
after the switch to be detected is detected to be switched on and switched off, when the sum of the currents of the three-phase circuit where the switch to be detected is located is smaller than the preset proportion of the full current code value of the switch to be detected, the switching-on and switching-off judgment accuracy of the detection device is judged to be accurate.
6. The method for judging the switch tripping-stealing according to claim 1, wherein after the detection device detects that the switch to be tested is switched on and off, judging whether the switch to be tested is in a normal switching-off action according to at least one of a substation type to which the switch to be tested belongs, a maintenance state of the switch to be tested, a control instruction related to the switch to be tested, switching-on and switching-off judgment accuracy of the detection device, and a remote signaling power state of a measurement and control device to which the switch to be tested belongs comprises:
judging whether the switch to be tested is in normal switching-off action or not according to the remote signaling power state of the measurement and control device to which the switch to be tested belongs; the remote signaling power supply state of the measurement and control device to which the switch to be tested belongs comprises a power loss state and a non-power loss state;
when the remote signaling power supply state of the measurement and control device is a power-off state, the switch to be measured is judged to be in normal brake-off action;
and when the remote signaling power supply state of the measurement and control device is a non-power-loss state, continuously judging whether the switch to be tested is in a normal switching-off action according to at least one of the type of the transformer substation to which the switch to be tested belongs, the overhaul state of the switch to be tested, a control instruction related to the switch to be tested and the switching-on and switching-off judgment accuracy of the detection device.
7. The method for judging the switch tripping-stealing according to claim 1, wherein after the detection device detects that the switch to be tested is switched on and off, judging whether the switch to be tested is in a normal switching-off action according to at least one of a substation type to which the switch to be tested belongs, a maintenance state of the switch to be tested, a control instruction related to the switch to be tested, switching-on and switching-off judgment accuracy of the detection device, and a remote signaling power state of a measurement and control device to which the switch to be tested belongs comprises:
after a detection device detects that a switch to be detected is switched on and switched off for a first preset time, judging whether the switch to be detected is normally switched off according to at least one of the type of a transformer substation to which the switch to be detected belongs, the overhaul state of the switch to be detected, a control instruction related to the switch to be detected, the switching-on and switching-off judgment accuracy of the detection device and the remote signaling power state of a measurement and control device to which the switch to be detected belongs.
8. A switch stealing trip judging device is characterized by comprising:
the switch tripping judging module is used for judging whether the switch to be detected is in a normal tripping action or not according to at least one of the type of a transformer substation to which the switch to be detected belongs, the overhaul state of the switch to be detected, a control instruction related to the switch to be detected, the switching-on and switching-off judging accuracy of the detecting device and the remote signaling power state of a measurement and control device to which the switch to be detected belongs after the detecting device detects that the switch to be detected is switched on and off;
if not, judging that the switch to be tested generates the stealing trip and outputting a prompt signal; after the detection device detects that the switch to be detected is switched on and off, whether the switch to be detected is a normal switching-off action or not is judged according to at least one of the type of a transformer substation to which the switch to be detected belongs, the overhaul state of the switch to be detected, a control instruction related to the switch to be detected, the switching-on and switching-off judgment accuracy of the detection device and the remote signaling power state of the measurement and control device to which the switch to be detected belongs, and the method comprises the following steps:
judging whether the switch to be tested is in normal opening action according to the opening and closing judgment accuracy of the detection device; the opening and closing judgment accuracy of the detection device comprises accurate judgment and wrong judgment;
if the switching-on and switching-off judgment accuracy of the detection device is a judgment error, judging that the switch to be detected is not in a stealing trip;
if the switching-on and switching-off judgment accuracy of the detection device is accurate, whether the switch to be detected is in normal switching-off action or not is continuously judged according to at least one of the type of the transformer substation to which the switch to be detected belongs, the overhaul state of the switch to be detected, the control instruction related to the switch to be detected and the remote signaling power state of the measurement and control device to which the switch to be detected belongs.
9. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out a method for switch stealing trip determination according to any one of claims 1 to 7.
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| CN103248120A (en) * | 2013-04-19 | 2013-08-14 | 国家电网公司 | Method for achieving accident trip judgment of scheduling main station without accident main signal |
| CN107240958A (en) * | 2017-08-02 | 2017-10-10 | 国网上海市电力公司 | A kind of switch jump processing method for the standby throwing of network |
| CN208706023U (en) * | 2018-09-03 | 2019-04-05 | 广东电网有限责任公司 | A kind of switch jump intelligent alarm system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103248120A (en) * | 2013-04-19 | 2013-08-14 | 国家电网公司 | Method for achieving accident trip judgment of scheduling main station without accident main signal |
| CN107240958A (en) * | 2017-08-02 | 2017-10-10 | 国网上海市电力公司 | A kind of switch jump processing method for the standby throwing of network |
| CN208706023U (en) * | 2018-09-03 | 2019-04-05 | 广东电网有限责任公司 | A kind of switch jump intelligent alarm system |
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