Method, system and equipment for monitoring power grid equipment

Abstract

The invention discloses a power grid equipment monitoring method, system and equipment, and relates to the technical field of equipment monitoring, and the method comprises the steps: obtaining the special maintenance data of each power grid equipment in real time, screening each power grid equipment according to each special maintenance data, obtaining corresponding special maintenance equipment, and when the special maintenance equipment is primary equipment, carrying out the screening of the special maintenance equipment; and when the equipment type of the special maintenance equipment is the secondary equipment, performing state evaluation on the special maintenance equipment according to a preset operation and maintenance master station to obtain a state evaluation result corresponding to the special maintenance equipment, and when the equipment type of the special maintenance equipment is the secondary equipment, performing state evaluation on the special maintenance equipment according to the preset operation and maintenance master station to obtain a state evaluation result corresponding to the special maintenance equipment. The technical problems that the inspection method of the power grid equipment mainly inspects the power grid equipment manually so as to inspect whether the power grid equipment operates normally or not, the inspection efficiency of a manual inspection mode is low, the risk that hidden dangers are not found due to uneven skill levels of operation and maintenance personnel exists, and the operation stability of a power system is reduced are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment monitoring, and in particular to a monitoring method, system and equipment for power grid equipment. Background Art

[0002] As the scale of the power system continues to expand and become more complex, the risks faced by power grid operation are also increasing. When the primary equipment is overloaded or the primary system mode changes, the risk of the power grid may escalate, thus affecting the stable operation of the power system. In this case, it is necessary to conduct regular or irregular inspections of power grid equipment to timely discover hidden dangers of power grid equipment and ensure the stable operation of the power system.

[0003] At present, the inspection method of power grid equipment is mainly through inspections by operation and maintenance personnel according to established special maintenance strategies to check whether the power grid equipment is operating normally. However, the manual inspection method has low inspection efficiency and there is a risk of hidden dangers going undetected due to the uneven skill levels of operation and maintenance personnel, which reduces the stability of power system operation. Summary of the invention

[0004] The present invention provides a monitoring method, system and device for power grid equipment, which solves the technical problem that the inspection method of power grid equipment is mainly to inspect the power grid equipment according to the established special maintenance strategy by operation and maintenance personnel to check whether the power grid equipment is operating normally, but the inspection efficiency of the manual inspection method is low, and there is a risk of hidden dangers not being discovered due to the uneven skill levels of operation and maintenance personnel, which reduces the stability of power system operation.

[0005] A first aspect of the present invention provides a method for monitoring power grid equipment, comprising:

[0006] Acquire the special-dimensional data of each power grid device in real time, and screen each power grid device according to each special-dimensional data to obtain the corresponding special-dimensional device;

[0007] When the device type of the Tewei device is a primary device, a status evaluation is performed on the Tewei device according to a preset operation and maintenance master station to obtain a status evaluation result corresponding to the Tewei device;

[0008] When the device type of the Tewei device is a secondary device, a status evaluation is performed on the Tewei device according to a preset security master station to obtain a status evaluation result corresponding to the Tewei device.

[0009] Optionally, the T-type data includes line interval current, line interval power, transformer interval current, transformer interval power, number of circuit breaker closing positions, power line voltage, number of high-voltage side circuit breakers closing positions and high-voltage side current, and each of the T-type data is screened for each of the power grid devices to obtain the corresponding T-type device, including:

[0010] Screening each of the power grid devices according to each of the line interval currents and each of the line interval powers to obtain corresponding line overload devices;

[0011] Screening each of the power grid devices according to each of the transformer interval currents and each of the transformer interval powers to obtain corresponding transformer overload devices;

[0012] Screening each of the power grid devices according to the number of closed positions of each of the circuit breakers and the voltage of each of the power supply lines to obtain corresponding single-line power supply devices;

[0013] Screening each of the power grid devices according to the number of closed positions of each of the high-voltage side circuit breakers and each of the high-voltage side currents to obtain a corresponding single transformer power supply device;

[0014] The line overload device, the transformer overload device, the single line power supply device and the single transformer power supply device are determined as TWE devices.

[0015] Optionally, the step of screening each of the power grid devices according to each of the line interval currents and each of the line interval powers to obtain a corresponding line overload device includes:

[0016] respectively determining whether each of the line interval currents is greater than a preset first current threshold;

[0017] If the line interval current is greater than the first current threshold, determining the power grid device associated with the line interval current as a line overload device;

[0018] If the line interval current is less than or equal to the first current threshold, determining whether the line interval power is greater than a preset line power threshold;

[0019] When the line interval power is greater than the line power threshold, the power grid equipment associated with the line interval power is determined as a line overload equipment.

[0020] Optionally, the step of screening each of the power grid devices according to each of the transformer interval currents and each of the transformer interval powers to obtain a corresponding transformer overload device includes:

[0021] respectively determining whether each of the transformer interval currents is greater than a preset second current threshold;

[0022] If the transformer interval current is greater than the second current threshold, determining the power grid device associated with the transformer interval current as a transformer overload device;

[0023] If the transformer interval current is less than or equal to the second current threshold, determining whether the transformer interval power is greater than a preset transformer power threshold;

[0024] When the transformer interval power is greater than the transformer power threshold, the power grid equipment associated with the transformer interval power is determined as a transformer overload equipment.

[0025] Optionally, the step of screening each of the power grid devices according to the number of closed positions of each of the circuit breakers and the voltage of each of the power supply lines to obtain a corresponding single-line power supply device includes:

[0026] Determine whether the number of circuit breakers in the closed position of each of the power grid devices is a preset first number threshold;

[0027] When the number of the circuit breakers in the closed position reaches the first number threshold, the closed circuit breaker associated with the power grid equipment is determined as the first target circuit breaker, and it is determined whether the state of the first switch associated with the first target circuit breaker is in the closed position;

[0028] When the first switch is in the closed position, determining whether the power line voltage of the power grid equipment is greater than a preset first voltage threshold;

[0029] When the power line voltage is greater than the first voltage threshold, the power grid device is determined as a single-line power supply device.

[0030] Optionally, the step of screening each of the power grid devices according to the number of closed positions of each of the high-voltage side circuit breakers and each of the high-voltage side currents to obtain a corresponding single transformer power supply device includes:

[0031] Determine whether the number of high-voltage side circuit breakers in the closed position of each of the power grid devices is a preset second number threshold;

[0032] When the number of the high-voltage side circuit breakers in the closed position reaches the second number threshold, the closed high-voltage side circuit breaker associated with the power grid equipment is determined as the second target circuit breaker, and it is determined whether the second switch state associated with the second target circuit breaker is in the closed position;

[0033] When the state of the second knife switch is closed, it is determined whether the high-voltage side current of the power grid equipment is greater than a preset third current threshold;

[0034] When the high-voltage side current is greater than the third current threshold, the power grid device is determined to be a single transformer power supply device.

[0035] Optionally, the step of performing status evaluation on the Tewei device according to a preset operation and maintenance master station to obtain a status evaluation result corresponding to the Tewei device includes:

[0036] Obtain patrol information of the special maintenance equipment through a preset operation and maintenance main station, and determine whether the first equipment temperature, the local equipment temperature, and the second equipment temperature of the patrol information are greater than corresponding temperature thresholds;

[0037] If the first device temperature, the local device temperature or the second device temperature is greater than the corresponding temperature threshold, generating a status assessment result of the abnormality of the Twei device;

[0038] If the first device temperature, the local device temperature and the second device temperature are all less than or equal to the corresponding temperature thresholds, determining whether the table count value of the patrol information is greater than or equal to a preset alarm threshold;

[0039] If the table count value is greater than or equal to the alarm threshold, generating a status assessment result of the abnormality of the special equipment;

[0040] If the table count value is less than the alarm threshold, determining whether the defect detection information of the patrol information indicates that the equipment operation condition is abnormal;

[0041] When the defect detection information indicates that the equipment is operating normally, a normal status assessment result of the Tewei equipment is generated;

[0042] When the defect detection information indicates that the equipment operating condition is abnormal, a status assessment result of the abnormality of the Tevi equipment is generated.

[0043] Optionally, the step of performing status evaluation on the Tewei device according to the preset security master station to obtain a status evaluation result corresponding to the Tewei device includes:

[0044] Using a preset security main station to perform a Twei information calling operation on the Twei device, and determining whether the security main station has received the Twei information of the Twei device;

[0045] When the security master station does not receive the T-V information, it generates an abnormal status assessment result of the T-V device;

[0046] When the security master station receives the special information, it determines whether the special information is consistent with the preset standard status information;

[0047] If the TUV information is consistent with the standard status information, a normal status assessment result of the TUV device is generated;

[0048] If the T-device information is inconsistent with the standard status information, an abnormal status assessment result of the T-device is generated.

[0049] A second aspect of the present invention provides a monitoring system for power grid equipment, comprising:

[0050] The acquisition module is used to obtain the special-dimensional data of each power grid device in real time, and screen each power grid device according to each special-dimensional data to obtain the corresponding special-dimensional device;

[0051] A first evaluation module is used for, when the device type of the Tewei device is a primary device, performing a status evaluation on the Tewei device according to a preset operation and maintenance master station to obtain a status evaluation result corresponding to the Tewei device;

[0052] The second evaluation module is used to perform a status evaluation on the Tewei device according to a preset security master station when the device type of the Tewei device is a secondary device, and obtain a status evaluation result corresponding to the Tewei device.

[0053] A third aspect of the present invention provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method for monitoring power grid equipment as described in any one of the above items.

[0054] It can be seen from the above technical solutions that the present invention has the following advantages:

[0055] The present invention obtains the T-type data of each power grid device in real time, and judges whether there is a T-type device in the power system according to each T-type data. When there is a T-type device, the T-type device is evaluated according to the device type of the T-type device. The inspection method of the power grid equipment is overcome. It is mainly to inspect the power grid equipment by operation and maintenance personnel according to the established T-type strategy to check whether the power grid equipment is operating normally, but the inspection efficiency of the manual inspection method is low, and there is a risk of hidden dangers not being discovered due to the uneven skill levels of operation and maintenance personnel, which reduces the stability of the power system operation. Compared with the traditional power grid equipment inspection method, the present invention screens each power grid device through each T-type data to obtain the corresponding T-type device, and according to the device type of the T-type device, calls the preset operation and maintenance main station or the security main station to evaluate the status of the T-type device, improves the inspection efficiency of the power grid equipment, and then improves the stability of the power system operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0057] Figure 1A flowchart of a method for monitoring power grid equipment provided in Embodiment 1 of the present invention;

[0058] Figure 2 A flowchart of a method for monitoring power grid equipment provided in Embodiment 2 of the present invention;

[0059] Figure 3 A schematic diagram of the structure of an automatic special maintenance inspection system for power grid equipment provided in Embodiment 2 of the present invention;

[0060] Figure 4 A structural block diagram of a monitoring system for power grid equipment provided in Embodiment 3 of the present invention;

[0061] Figure 5 This is a structural block diagram of an electronic device provided in Embodiment 4 of the present invention. DETAILED DESCRIPTION

[0062] The embodiments of the present invention provide a monitoring method, system and device for power grid equipment, which are used to solve the problem that the inspection method of power grid equipment is mainly to inspect the power grid equipment according to the established special maintenance strategy by operation and maintenance personnel to check whether the power grid equipment is operating normally, but the inspection efficiency of the manual inspection method is low, and there is a risk of hidden dangers not being discovered due to the uneven skill levels of operation and maintenance personnel, which reduces the technical problem of the stability of power system operation.

[0063] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] See also Figure 1 , Figure 1 A flowchart of the steps of a method for monitoring power grid equipment provided in Embodiment 1 of the present invention.

[0065] The present invention provides a method for monitoring power grid equipment, comprising:

[0066] Step 101: acquiring the special-dimensional data of each power grid device in real time, and screening each power grid device according to each special-dimensional data to obtain the corresponding special-dimensional device;

[0067] It should be noted that the special-voltage data include line interval current, line interval power, transformer interval current (i.e. the current on the high, medium and low voltage sides of the transformer interval), transformer interval power, number of circuit breakers in closed positions, power line voltage (i.e. the line voltage of the power line of the substation), number of high-voltage side circuit breakers in closed positions and high-voltage side current (i.e. the current on the high-voltage side of the transformer of the substation).

[0068] In the embodiment of the present invention, the special-dimensional data of each power grid device in the OCS system is obtained in real time, and based on the preset special-dimensional conditions, the power grid devices are screened according to each special-dimensional data to obtain corresponding special-dimensional devices.

[0069] It should be noted that the special condition means that when the power grid equipment has line overload, transformer overload, single line power supply or single transformer power supply, the power grid equipment will be determined as special equipment.

[0070] Step 102: When the device type of the Tewei device is a primary device, a status evaluation is performed on the Tewei device according to a preset operation and maintenance master station to obtain a status evaluation result corresponding to the Tewei device;

[0071] In an embodiment of the present invention, when the device type of the Tewei device is a primary device, the preset operation and maintenance main station controls the Tewei device to associate with an intelligent camera, a drone or a patrol robot to collect the patrol information of the Tewei device, and judges whether the first device temperature, the local device temperature and the second device temperature of the patrol information are greater than the corresponding temperature threshold. If the first device temperature, the local device temperature or the second device temperature is greater than the corresponding temperature threshold, an abnormal state evaluation result of the Tewei device is generated. If the first device temperature, the local device temperature and the second device temperature are all less than or equal to the corresponding temperature threshold, it is judged whether the table count value of the patrol information is greater than or equal to the preset alarm threshold. If the table count value is greater than or equal to the alarm threshold, an abnormal state evaluation result of the Tewei device is generated. If the table count value is less than the alarm threshold, it is judged whether the defect detection information of the patrol information is abnormal in the equipment operation condition. When the defect detection information is normal in the equipment operation condition, a normal state evaluation result of the Tewei device is generated. When the defect detection information is abnormal in the equipment operation condition, an abnormal state evaluation result of the Tewei device is generated.

[0072] Step 103: When the device type of the Tewei device is a secondary device, a status evaluation is performed on the Tewei device according to the preset security master station to obtain a status evaluation result corresponding to the Tewei device.

[0073] In an embodiment of the present invention, when the device type of the Tevi device is a secondary device, the Tevi information call is performed on the Tevi device through the preset security main station. When the security main station does not receive the Tevi information, an abnormal status evaluation result of the Tevi device is generated. When the security main station receives the Tevi information, it determines whether the Tevi information is consistent with the preset standard status information. If the Tevi information is consistent with the standard status information, a normal status evaluation result of the Tevi device is generated. If the Tevi information is inconsistent with the standard status information, an abnormal status evaluation result of the Tevi device is generated.

[0074] In an embodiment of the present invention, by acquiring the T-type data of each power grid device in real time, and judging whether there is a T-type device in the power system according to each T-type data, when there is a T-type device, the T-type device is evaluated for status according to the device type of the T-type device. The inspection method of power grid equipment is overcome, which is mainly to inspect the power grid equipment by operation and maintenance personnel according to the established T-type strategy to check whether the power grid equipment is operating normally, but the inspection efficiency of the manual inspection method is low, and there is a risk of hidden dangers not being discovered due to the uneven skill levels of operation and maintenance personnel, which reduces the stability of the power system operation. Compared with the traditional power grid equipment inspection method, the present invention screens each power grid device through each T-type data to obtain the corresponding T-type device, and according to the device type of the T-type device, calls the preset operation and maintenance main station or the security main station to evaluate the status of the T-type device, thereby improving the inspection efficiency of the power grid equipment and thus improving the stability of the power system operation.

[0075] See also Figure 2 , Figure 2 A flowchart of the steps of a method for monitoring power grid equipment provided in Embodiment 2 of the present invention.

[0076] The present invention provides a method for monitoring power grid equipment, comprising:

[0077] Step 201, acquiring the special-dimensional data of each power grid device in real time, and screening each power grid device according to each special-dimensional data to obtain the corresponding special-dimensional device;

[0078] Further, the special data includes line interval current, line interval power, transformer interval current, transformer interval power, number of circuit breaker closing positions, power line voltage, number of high-voltage side circuit breakers closing positions and high-voltage side current. Step 201 includes the following sub-steps:

[0079] S11, screening each power grid device according to each line interval current and each line interval power to obtain corresponding line overload devices;

[0080] Furthermore, S11 includes the following sub-steps:

[0081] S111, respectively determining whether the current of each line interval is greater than a preset first current threshold;

[0082] The first current threshold refers to the maximum current allowed for long-term operation of the line interval, which is generally the rated current of the line.

[0083] In the embodiment of the present invention, it is determined whether the current of each line interval is greater than the maximum current allowed for long-term operation of the line interval.

[0084] S112: if the line interval current is greater than the first current threshold, determining the power grid device associated with the line interval current as a line overload device;

[0085] In the embodiment of the present invention, if the line interval current is greater than the maximum current allowed for long-term operation of the line interval, the power grid equipment associated with the line interval current is determined to be a line overload equipment.

[0086] S113, if the line interval current is less than or equal to the first current threshold, determining whether the line interval power is greater than a preset line power threshold;

[0087] The line power threshold refers to the maximum power that the line is allowed to operate in the long term, which is generally the rated power.

[0088] In the embodiment of the present invention, if the line interval current is less than or equal to the maximum current allowed for long-term operation of the line interval, it is determined whether the line interval power is greater than the maximum power allowed for long-term operation of the line.

[0089] S114: When the line interval power is greater than the line power threshold, the power grid equipment associated with the line interval power is determined as a line overload equipment.

[0090] In the embodiment of the present invention, when the line interval power is greater than the maximum power allowed for long-term operation of the line, the power grid equipment associated with the line interval power is determined as the line overload equipment.

[0091] S12, screening each power grid device according to each transformer interval current and each transformer interval power to obtain corresponding transformer overload devices;

[0092] Furthermore, S12 includes the following sub-steps:

[0093] S121, respectively determining whether the interval current of each transformer is greater than a preset second current threshold;

[0094] The second current threshold refers to the maximum current allowed for long-term operation of the transformer interval.

[0095] In the embodiment of the present invention, it is determined whether the current of each transformer interval is greater than the maximum current allowed for long-term operation of the transformer interval.

[0096] S122: if the transformer interval current is greater than the second current threshold, determining the power grid device associated with the transformer interval current as a transformer overload device;

[0097] In the embodiment of the present invention, if the transformer interval current is greater than the maximum current allowed for long-term operation of the transformer interval, the power grid equipment associated with the transformer interval current is determined as a transformer overload equipment.

[0098] S123, if the transformer interval current is less than or equal to the second current threshold, determining whether the transformer interval power is greater than a preset transformer power threshold;

[0099] The transformer power threshold refers to the maximum power that the transformer is allowed to operate at for a long time.

[0100] In the embodiment of the present invention, if the transformer interval current is less than or equal to the maximum current allowed for long-term operation of the transformer interval, it is determined whether the transformer interval power is greater than the maximum power allowed for long-term operation of the transformer.

[0101] S124. When the transformer interval power is greater than the transformer power threshold, the power grid equipment associated with the transformer interval power is determined as a transformer overload equipment.

[0102] In the embodiment of the present invention, when the transformer interval power is greater than the maximum power allowed for long-term operation of the transformer, the power grid equipment associated with the transformer interval power is determined as transformer overload equipment.

[0103] S13, screening each power grid device according to the number of closed positions of each circuit breaker and the voltage of each power line to obtain a corresponding single-line power supply device;

[0104] Furthermore, S13 includes the following sub-steps:

[0105] S131, respectively determining whether the number of circuit breakers in each power grid device is in a closed position is a preset first number threshold;

[0106] In the embodiment of the present invention, it is determined whether the number of closed positions of the circuit breakers of each power grid device is 1.

[0107] S132: When the number of closed circuit breakers reaches a first number threshold, determining the closed circuit breaker associated with the power grid device as a first target circuit breaker, and determining whether the state of a first switch associated with the first target circuit breaker is closed;

[0108] In the embodiment of the present invention, when the number of circuit breakers in the closed position is 1, the closed circuit breaker associated with the power grid equipment is determined as the first target circuit breaker, and it is determined whether the knife switch associated with the first target circuit breaker is in the closed position.

[0109] S133, when the first switch is in the closed position, determining whether the power line voltage of the power grid equipment is greater than a preset first voltage threshold;

[0110] In an embodiment of the present invention, when the switch associated with the first target circuit breaker is in the closed position, it is determined whether the power line voltage of the power grid equipment is greater than a preset first voltage threshold, wherein the first voltage threshold is 0.7 times the rated voltage of the line.

[0111] S134. When the power line voltage is greater than a first voltage threshold, the power grid device is determined as a single-line power supply device.

[0112] In the embodiment of the present invention, when the power line voltage is greater than the first voltage threshold, the power grid device associated with the power line voltage is determined as a single-line power supply device.

[0113] S14, screening each power grid device according to the number of closed positions of each high-voltage side circuit breaker and each high-voltage side current to obtain a corresponding single transformer power supply device;

[0114] Furthermore, S14 includes the following sub-steps:

[0115] S141, respectively determining whether the number of closed positions of high-voltage side circuit breakers of each power grid device is a preset second number threshold;

[0116] In the embodiment of the present invention, it is determined whether the number of closed positions of high-voltage side circuit breakers of each power grid device is 1.

[0117] S142: When the number of high-voltage side circuit breakers in the closed position reaches a second number threshold, the closed high-voltage side circuit breaker associated with the power grid equipment is determined as a second target circuit breaker, and it is determined whether the state of the second switch associated with the second target circuit breaker is in the closed position;

[0118] In an embodiment of the present invention, when the number of high-voltage side circuit breakers in the closed position is 1, the closed high-voltage side circuit breaker associated with the power grid equipment is determined as the second target circuit breaker, and it is determined whether the knife switch associated with the second target circuit breaker is in the closed position.

[0119] S143, when the second switch is in the closed position, determining whether the high-voltage side current of the power grid equipment is greater than a preset third current threshold;

[0120] In an embodiment of the present invention, when the switch associated with the second target circuit breaker is in the closed position, it is determined whether the high-voltage side current of the power grid equipment is greater than a preset third current threshold, wherein the third current threshold is 0.05 times the rated current.

[0121] S144. When the high-voltage side current is greater than a third current threshold, the power grid equipment is determined to be a single transformer power supply equipment.

[0122] In the embodiment of the present invention, when the high-voltage side current is greater than the third current threshold, the power grid equipment associated with the high-voltage side current is determined to be a single transformer power supply equipment.

[0123] S15. Line overload equipment, transformer overload equipment, single line power supply equipment and single transformer power supply equipment are identified as special equipment.

[0124] In the embodiment of the present invention, a line overload device, a transformer overload device, a single line power supply device and a single transformer power supply device are used as special devices.

[0125] Step 202: When the device type of the Tewei device is a primary device, a status evaluation is performed on the Tewei device according to a preset operation and maintenance master station to obtain a status evaluation result corresponding to the Tewei device;

[0126] Further, step 202 includes the following sub-steps:

[0127] S21, obtaining patrol information of the special maintenance equipment through the preset operation and maintenance main station, and determining whether the first equipment temperature, the local equipment temperature and the second equipment temperature of the patrol information are greater than the corresponding temperature thresholds;

[0128] The first device temperature refers to the temperature value of the Tevi device.

[0129] Local equipment temperature refers to the maximum relative temperature difference between different parts of the TUV equipment.

[0130] The second device temperature refers to the maximum temperature difference between similar Tewey devices.

[0131] In an embodiment of the present invention, a preset operation and maintenance master station is used to control a camera, a drone or a patrol robot associated with a special equipment to obtain patrol information of the special equipment, and to determine whether the first equipment temperature, the local equipment temperature and the second equipment temperature of the patrol information are greater than corresponding temperature thresholds.

[0132] It should be noted that the temperature threshold corresponding to the first device temperature is the allowable value of the device model design, the temperature threshold corresponding to the local device temperature is 15%, and the temperature threshold corresponding to the second device temperature is 10°C.

[0133] S22, if the first device temperature, the local device temperature or the second device temperature is greater than the corresponding temperature threshold, generating a status assessment result of the abnormality of the special device;

[0134] In the embodiment of the present invention, when the first device temperature, the local device temperature or the second device temperature is greater than the corresponding temperature threshold, a status assessment result of the abnormality of the special device is generated.

[0135] S23, if the first device temperature, the local device temperature and the second device temperature are all less than or equal to the corresponding temperature thresholds, determining whether the table count value of the patrol information is greater than or equal to a preset alarm threshold;

[0136] The alarm threshold refers to the alarm value scale of the TUV device.

[0137] In the embodiment of the present invention, when the first device temperature, the local device temperature and the second device temperature are all less than or equal to the corresponding temperature thresholds, it is determined whether the table count value of the patrol information reaches a preset alarm threshold.

[0138] S24. If the meter count value is greater than or equal to the alarm threshold, a status assessment result of the abnormality of the TW device is generated;

[0139] In the embodiment of the present invention, when the table count value is greater than or equal to the preset alarm threshold, a status assessment result of the abnormality of the special-dimensional equipment is generated.

[0140] S25. If the meter count value is less than the alarm threshold, determine whether the defect detection information of the patrol information indicates that the equipment is operating abnormally;

[0141] In the embodiment of the present invention, when the table count value is less than the alarm threshold, it is determined whether the defect detection information of the patrol information indicates that the equipment operation condition is abnormal.

[0142] S26. When the defect detection information indicates that the equipment is operating normally, a normal status assessment result of the Tewei equipment is generated;

[0143] In the embodiment of the present invention, if the defect detection information indicates that the equipment is operating normally, a normal status assessment result of the Tewei equipment is generated.

[0144] S27. When the defect detection information indicates that the equipment operating condition is abnormal, a status assessment result of the abnormal equipment is generated.

[0145] In the embodiment of the present invention, if the defect detection information indicates that the equipment operating condition is abnormal, a status assessment result of the abnormal equipment is generated.

[0146] It is worth mentioning that when the operation and maintenance master station detects that the Tway equipment is well sealed, there is no oil leakage, and the outer insulation surface is clean and no contaminant creepage is formed (that is, the oil-filled equipment has no oil leakage at the metal joints and sealing rings, and the contaminants in the insulating sleeves and porcelain bottles do not cause creepage), the defect detection information is determined as the normal operation of the equipment. When the operation and maintenance master station detects that the Tway equipment is poorly sealed, there is oil leakage, or contaminant creepage is formed on the outer insulation surface, the defect detection information is determined as abnormal equipment operation.

[0147] Step 203: When the device type of the Tewei device is a secondary device, the preset security master station is used to perform a Tewei information calling operation on the Tewei device, and it is determined whether the security master station has received the Tewei information of the Tewei device;

[0148] In the embodiment of the present invention, when the device type of the Twei device is a secondary device, the preset security master station is used to perform a Twei information calling operation on the Twei device, and determine whether the security master station successfully receives the Twei information of the Twei device.

[0149] Step 204: When the security master station does not receive the T-V information, a status assessment result of the abnormal T-V device is generated;

[0150] In the embodiment of the present invention, when the security master station fails to successfully receive the T-type information, a status assessment result of an abnormal T-type device is generated.

[0151] Step 205: When the security master station receives the special information, it determines whether the special information is consistent with the preset standard status information;

[0152] In the embodiment of the present invention, when the security master station successfully receives the special information, it determines whether the special information is consistent with the preset standard status information.

[0153] It should be noted that the standard status information specifically includes: various set values ​​of the Tewei equipment and the activation and deactivation methods of the soft and hard pressure plates associated with the Tewei equipment.

[0154] Step 206: If the T-device information is consistent with the standard status information, a normal status assessment result of the T-device device is generated;

[0155] In the embodiment of the present invention, when the T-device information is consistent with the standard status information, a normal status assessment result of the T-device is generated.

[0156] Step 207: If the T-mode information is inconsistent with the standard state information, a state assessment result indicating that the T-mode device is abnormal is generated.

[0157] In the embodiment of the present invention, when the T-mode information is inconsistent with the standard state information, a state assessment result of abnormal T-mode equipment is generated.

[0158] It is worth mentioning that see Figure 3As shown, the automatic special maintenance inspection system for power grid equipment includes a special maintenance master station, an OCS system, a Baoxin master station, a special maintenance master station web server, a Baoxin master station web server and an intelligent operation and maintenance system. The special maintenance master station is deployed in the safety zone I, connected to the Baoxin master station and the OCS system through a firewall, and connected to the special maintenance master station web server through a forward and reverse isolation device, identifies the equipment in the power grid that needs special maintenance inspection, and sends a special maintenance inspection task of the protection equipment to the Baoxin master station, and sends a special maintenance inspection request of the equipment to the Twei master station web server. The Baoxin master station is deployed in the safety zone I, connected to the Baoxin substation through the dispatching data network, and can realize the special maintenance inspection of the protection equipment. The Baoxin substation includes an intelligent recorder, an intelligent remote motor, etc. The Baoxin master station web server is deployed in the safety zone III, connected to the Baoxin master station through a forward and reverse isolation device, and connected to the Twei master station web server through a firewall, and is used to send the special maintenance inspection results of the protection equipment to the Twei master station web server. The Twei main station web server is deployed in the safety zone III, connected to the intelligent operation and maintenance system through a firewall, and sends Twei patrol tasks to the intelligent operation and maintenance system. The Twei patrol results of the comprehensive protection equipment and primary equipment are automatically generated and published. The intelligent operation and maintenance system is deployed in the safety zone III, and is used to receive the Twei patrol tasks sent by the Twei main station web server, and control the smart camera, drone, and patrol robot to carry out Twei patrol. The monitoring method of the power grid equipment of steps 201 to 207 can be executed by the automatic Twei patrol system of the power grid equipment.

[0159] The process of executing the monitoring method of power grid equipment through the automatic Twei patrol system of power grid equipment is specifically as follows: A1. The Twei class data of each power grid equipment in the OCS system is received in real time through the Twei main station. A2. The corresponding Twei equipment is obtained by executing step 201 process through the Twei main station. A3. Referring to Table 1, the Twei main station uses each Twei equipment to generate a patrol object list. A4. The Twei main station issues Twei patrol tasks to the operation and maintenance main station and the security main station according to the patrol object list. A5. The security main station performs status assessment on the associated Twei equipment according to the Twei patrol task, and generates the status assessment results corresponding to the Twei equipment. A6. The operation and maintenance main station performs status assessment on the associated Twei equipment according to the Twei patrol task, and generates the status assessment results corresponding to the Twei equipment. A7. The Twei main station generates a patrol report based on each status assessment result and sends it to the web server.

[0160] Table 1

[0161]

[0162] In an embodiment of the present invention, by acquiring the T-type data of each power grid device in real time, and judging whether there is a T-type device in the power system according to each T-type data, when there is a T-type device, the T-type device is evaluated for status according to the device type of the T-type device. The inspection method of power grid equipment is overcome, which is mainly to inspect the power grid equipment by operation and maintenance personnel according to the established T-type strategy to check whether the power grid equipment is operating normally, but the inspection efficiency of the manual inspection method is low, and there is a risk of hidden dangers not being discovered due to the uneven skill levels of operation and maintenance personnel, which reduces the stability of the power system operation. Compared with the traditional power grid equipment inspection method, the present invention screens each power grid device through each T-type data to obtain the corresponding T-type device, and according to the device type of the T-type device, calls the preset operation and maintenance main station or the security main station to evaluate the status of the T-type device, thereby improving the inspection efficiency of the power grid equipment and thus improving the stability of the power system operation.

[0163] See also Figure 4 , Figure 4 This is a structural block diagram of a monitoring system for power grid equipment provided in Embodiment 3 of the present invention.

[0164] The present invention provides a monitoring system for power grid equipment, comprising:

[0165] The acquisition module 301 is used to obtain the special-dimensional data of each power grid device in real time, and screen each power grid device according to each special-dimensional data to obtain the corresponding special-dimensional device;

[0166] The first evaluation module 302 is used to, when the device type of the Tewei device is a primary device, perform a status evaluation on the Tewei device according to a preset operation and maintenance master station to obtain a status evaluation result corresponding to the Tewei device;

[0167] The second evaluation module 303 is used to perform a status evaluation on the Tewei device according to a preset security master station when the device type of the Tewei device is a secondary device, and obtain a status evaluation result corresponding to the Tewei device.

[0168] Furthermore, the special data includes line interval current, line interval power, transformer interval current, transformer interval power, number of circuit breaker closing positions, power line voltage, number of high-voltage side circuit breakers closing positions and high-voltage side current. The acquisition module 301 includes:

[0169] The first screening submodule is used to screen each power grid device according to each line interval current and each line interval power to obtain the corresponding line overload device;

[0170] The second screening submodule is used to screen each power grid device according to each transformer interval current and each transformer interval power to obtain the corresponding transformer overload device;

[0171] The third screening submodule is used to screen each power grid device according to the number of closed positions of each circuit breaker and the voltage of each power supply line to obtain the corresponding single-line power supply device;

[0172] The fourth screening submodule is used to screen each power grid device according to the number of closed positions of each high-voltage side circuit breaker and each high-voltage side current to obtain a corresponding single transformer power supply device;

[0173] A selection submodule is used to identify line overload devices, transformer overload devices, single line power supply devices and single transformer power supply devices as special devices.

[0174] Furthermore, the first screening submodule includes:

[0175] A first analysis unit, used to determine whether the current of each line interval is greater than a preset first current threshold;

[0176] If the line interval current is greater than the first current threshold, determining the power grid device associated with the line interval current as a line overload device;

[0177] A second analysis unit, configured to determine whether the line interval power is greater than a preset line power threshold if the line interval current is less than or equal to the first current threshold;

[0178] When the line interval power is greater than the line power threshold, the power grid equipment associated with the line interval power is determined as a line overload equipment.

[0179] Furthermore, the second screening submodule includes:

[0180] A third analysis unit, used to determine whether the interval current of each transformer is greater than a preset second current threshold;

[0181] If the transformer interval current is greater than the second current threshold, determining the power grid device associated with the transformer interval current as a transformer overload device;

[0182] a fourth analysis unit, configured to determine whether the transformer interval power is greater than a preset transformer power threshold if the transformer interval current is less than or equal to the second current threshold;

[0183] When the transformer interval power is greater than the transformer power threshold, the power grid equipment associated with the transformer interval power is determined as a transformer overload equipment.

[0184] Furthermore, the third screening submodule includes:

[0185] A fifth analysis unit, used to determine whether the number of closed positions of circuit breakers of each power grid device is a preset first number threshold;

[0186] When the number of circuit breakers in the closed position reaches a first number threshold, the closed circuit breaker associated with the power grid equipment is determined as the first target circuit breaker, and it is determined whether the state of the first switch associated with the first target circuit breaker is in the closed position;

[0187] A sixth analysis unit, used for judging whether the power line voltage of the power grid equipment is greater than a preset first voltage threshold when the first switch is in the closed position;

[0188] When the power line voltage is greater than the first voltage threshold, the power grid device is determined as a single-line power supply device.

[0189] Furthermore, the fourth screening submodule includes:

[0190] A seventh analysis unit, used to respectively determine whether the number of closed positions of high-voltage side circuit breakers of each power grid device is a preset second number threshold;

[0191] When the number of high-voltage side circuit breakers in the closed position reaches a second number threshold, the closed high-voltage side circuit breaker associated with the power grid equipment is determined as the second target circuit breaker, and it is determined whether the state of the second switch associated with the second target circuit breaker is in the closed position;

[0192] an eighth analysis unit, for determining whether the high-voltage side current of the power grid device is greater than a preset third current threshold when the second switch is in the closed position;

[0193] When the high-voltage side current is greater than the third current threshold, the power grid device is determined to be a single transformer power supply device.

[0194] Furthermore, the first evaluation module 302 includes:

[0195] The acquisition submodule is used to obtain the patrol information of the special maintenance equipment through the preset operation and maintenance main station, and determine whether the first equipment temperature, the local equipment temperature and the second equipment temperature of the patrol information are greater than the corresponding temperature threshold;

[0196] If the first device temperature, the local device temperature or the second device temperature is greater than the corresponding temperature threshold, a status assessment result of the abnormality of the TW device is generated;

[0197] A first analysis submodule, for determining whether a table count value of patrol information is greater than or equal to a preset alarm threshold if the first device temperature, the local device temperature, and the second device temperature are all less than or equal to corresponding temperature thresholds;

[0198] If the meter count value is greater than or equal to the alarm threshold, a status assessment result of the abnormality of the TW device is generated;

[0199] If the meter count value is less than the alarm threshold, it is determined whether the defect detection information of the patrol information indicates that the equipment is operating abnormally;

[0200] When the defect detection information indicates that the equipment is operating normally, a normal status assessment result of the T&W equipment is generated;

[0201] When the defect detection information indicates that the equipment is operating abnormally, a status assessment result of the abnormal equipment status is generated.

[0202] Furthermore, the second evaluation module 303 includes:

[0203] The calling submodule is used to use the preset security main station to perform the Twei information calling operation on the Twei device, and determine whether the security main station has received the Twei information of the Twei device;

[0204] When the Baoxin master station does not receive the Tevi information, it generates a status assessment result of the abnormal Tevi device;

[0205] The second analysis submodule is used to determine whether the Twei information is consistent with the preset standard status information when the security master station receives the Twei information;

[0206] If the Tevi information is consistent with the standard status information, a normal status assessment result of the Tevi equipment is generated;

[0207] If the Tevi information is inconsistent with the standard status information, an abnormal status assessment result of the Tevi device is generated.

[0208] See also Figure 5 , Figure 5 This is a structural block diagram of an electronic device provided in Embodiment 4 of the present invention.

[0209] An electronic device according to an embodiment of the present invention includes: a memory 401 and a processor 402, wherein the memory 402 stores a computer program; when the computer program is executed by the processor 402, the processor 402 executes a monitoring method for a power grid device according to any of the above embodiments.

[0210] The memory 401 may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read-only memory), an EPROM, a hard disk or a ROM. The memory 401 has a storage space 403 for a program code 413 for executing any method step in the above method. For example, the storage space 403 for the program code may include individual program codes 413 for implementing the various steps in the above method, respectively. These program codes may be read from or written to one or more computer program products. These computer program products include program code carriers such as a hard disk, a compact disk (CD), a memory card or a floppy disk. The program code may be compressed, for example, in an appropriate form. When these codes are run by a computing and processing device, the computing and processing device is caused to execute the various steps in the above-described method.

[0211] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0212] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0213] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0214] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0215] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0216] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for monitoring power grid equipment, characterized in that: include: Acquire the special-dimensional data of each power grid device in real time, and screen each power grid device according to each special-dimensional data to obtain the corresponding special-dimensional device; When the device type of the Tewei device is a primary device, a status evaluation is performed on the Tewei device according to a preset operation and maintenance master station to obtain a status evaluation result corresponding to the Tewei device; When the device type of the Tewei device is a secondary device, a status evaluation is performed on the Tewei device according to a preset security master station to obtain a status evaluation result corresponding to the Tewei device.

2. The monitoring method for power grid equipment according to claim 1, characterized in that: The special-dimensional data include line interval current, line interval power, transformer interval current, transformer interval power, number of circuit breaker closing positions, power line voltage, number of high-voltage side circuit breakers closing positions and high-voltage side current. Each of the special-dimensional data is screened for each of the power grid devices to obtain the corresponding special-dimensional device, including: Screening each of the power grid devices according to each of the line interval currents and each of the line interval powers to obtain corresponding line overload devices; Screening each of the power grid devices according to each of the transformer interval currents and each of the transformer interval powers to obtain corresponding transformer overload devices; Screening each of the power grid devices according to the number of closed positions of each of the circuit breakers and the voltage of each of the power supply lines to obtain corresponding single-line power supply devices; Screening each of the power grid devices according to the number of closed positions of each of the high-voltage side circuit breakers and each of the high-voltage side currents to obtain a corresponding single transformer power supply device; The line overload device, the transformer overload device, the single line power supply device and the single transformer power supply device are determined as TWE devices.

3. The monitoring method for power grid equipment according to claim 2, characterized in that: The step of screening each of the power grid devices according to each of the line interval currents and each of the line interval powers to obtain corresponding line overload devices includes: respectively determining whether each of the line interval currents is greater than a preset first current threshold; If the line interval current is greater than the first current threshold, determining the power grid device associated with the line interval current as a line overload device; If the line interval current is less than or equal to the first current threshold, determining whether the line interval power is greater than a preset line power threshold; When the line interval power is greater than the line power threshold, the power grid equipment associated with the line interval power is determined as a line overload equipment.

4. The monitoring method for power grid equipment according to claim 2, characterized in that: The step of screening each of the power grid devices according to each of the transformer interval currents and each of the transformer interval powers to obtain a corresponding transformer overload device comprises: respectively determining whether each of the transformer interval currents is greater than a preset second current threshold; If the transformer interval current is greater than the second current threshold, determining the power grid device associated with the transformer interval current as a transformer overload device; If the transformer interval current is less than or equal to the second current threshold, determining whether the transformer interval power is greater than a preset transformer power threshold; When the transformer interval power is greater than the transformer power threshold, the power grid equipment associated with the transformer interval power is determined as a transformer overload equipment.

5. The method for monitoring power grid equipment according to claim 2, characterized in that: The step of screening each of the power grid devices according to the number of closed positions of each of the circuit breakers and the voltage of each of the power supply lines to obtain a corresponding single-line power supply device includes: Determine whether the number of circuit breakers in the closed position of each of the power grid devices is a preset first number threshold; When the number of the circuit breakers in the closed position reaches the first number threshold, the closed circuit breaker associated with the power grid device is determined as the first target circuit breaker, and it is determined whether the state of the first switch associated with the first target circuit breaker is in the closed position; When the first switch is in the closed position, determining whether the power line voltage of the power grid equipment is greater than a preset first voltage threshold; When the power line voltage is greater than the first voltage threshold, the power grid device is determined as a single-line power supply device.

6. The method for monitoring power grid equipment according to claim 2, characterized in that: The step of screening each of the power grid devices according to the number of closed positions of each of the high-voltage side circuit breakers and each of the high-voltage side currents to obtain a corresponding single transformer power supply device includes: Determine whether the number of high-voltage side circuit breakers in the closed position of each of the power grid devices is a preset second number threshold; When the number of the high-voltage side circuit breakers in the closed position reaches the second number threshold, the closed high-voltage side circuit breaker associated with the power grid equipment is determined as the second target circuit breaker, and it is determined whether the second switch state associated with the second target circuit breaker is in the closed position; When the state of the second knife switch is closed, it is determined whether the high-voltage side current of the power grid equipment is greater than a preset third current threshold; When the high-voltage side current is greater than the third current threshold, the power grid device is determined to be a single transformer power supply device.

7. The method for monitoring power grid equipment according to claim 1, characterized in that: The step of performing status evaluation on the Tewei device according to the preset operation and maintenance master station to obtain a status evaluation result corresponding to the Tewei device includes: Obtain patrol information of the special maintenance equipment through a preset operation and maintenance main station, and determine whether the first equipment temperature, the local equipment temperature, and the second equipment temperature of the patrol information are greater than corresponding temperature thresholds; If the first device temperature, the local device temperature or the second device temperature is greater than the corresponding temperature threshold, generating a status assessment result of the abnormality of the Twei device; If the first device temperature, the local device temperature and the second device temperature are all less than or equal to the corresponding temperature thresholds, determining whether the table count value of the patrol information is greater than or equal to a preset alarm threshold; If the table count value is greater than or equal to the alarm threshold, generating a status assessment result of the abnormality of the special equipment; If the table count value is less than the alarm threshold, determining whether the defect detection information of the patrol information indicates that the equipment operation condition is abnormal; When the defect detection information indicates that the equipment is operating normally, a normal status assessment result of the Tewei equipment is generated; When the defect detection information indicates that the equipment operating condition is abnormal, a status assessment result of the abnormality of the Tevi equipment is generated.

8. The method for monitoring power grid equipment according to claim 1, characterized in that: The step of performing status evaluation on the Tewei device according to the preset security master station to obtain a status evaluation result corresponding to the Tewei device includes: Using a preset security main station to perform a Twei information calling operation on the Twei device, and determining whether the security main station has received the Twei information of the Twei device; When the security master station does not receive the T-V information, it generates an abnormal status assessment result of the T-V device; When the security master station receives the special information, it determines whether the special information is consistent with the preset standard status information; If the TUV information is consistent with the standard status information, a normal status assessment result of the TUV device is generated; If the T-device information is inconsistent with the standard status information, an abnormal status assessment result of the T-device is generated.

9. A monitoring system for power grid equipment, characterized in that: include: The acquisition module is used to obtain the special-dimensional data of each power grid device in real time, and screen each power grid device according to each special-dimensional data to obtain the corresponding special-dimensional device; A first evaluation module is used for, when the device type of the Tewei device is a primary device, performing a status evaluation on the Tewei device according to a preset operation and maintenance master station to obtain a status evaluation result corresponding to the Tewei device; The second evaluation module is used to perform a status evaluation on the Tewei device according to a preset security master station when the device type of the Tewei device is a secondary device, and obtain a status evaluation result corresponding to the Tewei device.

10. An electronic device, characterized in that: It comprises a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the processor executes the steps of the method for monitoring power grid equipment according to any one of claims 1 to 8.

Images