CN110134709B - Power grid data query method and device - Google Patents
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Abstract
The method and the device are used for judging whether remote signaling in stations and intervals included in each power grid data is in an action state, whether a telemetry value is in an out-of-limit state and whether the telemetry value is changed in preset time after receiving the power grid data transmitted by each transformer substation; if the remote signaling in the plant station and the interval is in an action state, judging that the power grid data is abnormal data; if the telemetering values in the plant stations and the intervals are in an out-of-limit state, judging that the power grid data are abnormal data; if the telemetering values in the stations and the intervals are unchanged in the preset time, judging that the power grid data are abnormal data; after all abnormal power grid data are judged, a patrol report is generated based on all the power grid data judged to be abnormal, so that abnormal data in the power grid data can be rapidly distinguished and inquired, and the accuracy is high.
Description
Technical Field
The disclosure belongs to the technical field of electric power, and particularly relates to a power grid data query method and device.
Background
With the continuous expansion of the power grid scale, the range of monitoring equipment is wider and wider, and the power grid data accessed into a power dispatching system is also explosive. By inquiring the power grid data in a manual mode, abnormal data and normal data can be displayed together, the power grid data are difficult to distinguish and clear, and omission is easy to cause.
Disclosure of Invention
In view of this, the disclosure provides a method and a device for querying grid data.
The power grid data query method provided by the disclosure is applied to a server side in a power dispatching system, and comprises the following steps:
and receiving power grid data transmitted by each transformer substation in the plurality of transformer substations, wherein the power grid data comprises remote signaling in the stations and the intervals and remote measuring values in the stations and the intervals.
And judging whether the remote signaling in the plant stations and the intervals included in the power grid data is in an action state, whether the remote sensing values in the plant stations and the intervals are in an out-of-limit state and whether the remote sensing values in the plant stations and the intervals are changed in preset time.
If the remote signaling in the plant stations and the intervals included in the power grid data is in an action state, judging that the power grid data is abnormal data; if the remote measurement values in the stations and the intervals included in the power grid data are in an out-of-limit state, judging that the power grid data are abnormal data; and if the remote measurement values in the stations and the intervals included in the power grid data are unchanged in the preset time, judging that the power grid data are abnormal data.
And generating a patrol report based on all the grid data determined to be abnormal.
Further, the power grid data further includes a difference value between an average value of B-phase current and C-phase current in the three-phase current of the busbar switch and a maximum value or a minimum value of the a-phase current, and after receiving the power grid data transmitted by each of the plurality of substations, the method further includes:
judging whether a set identifier exists in each power grid data; the setting identification comprises an overhaul identification and an information blocking identification.
And if the set identifier exists in the power grid data, judging that the power grid data is abnormal data.
And judging whether the difference value between the average value of the B-phase current and the C-phase current in the three-phase currents of the bus-tie switch and the maximum value or the minimum value of the A-phase current included in each power grid data is in a first preset range.
And if the difference value between the average value of the B-phase current and the C-phase current in the three-phase current of the bus-tie switch and the maximum value or the minimum value of the A-phase current in the power grid data is out of the first preset range, judging that the power grid data is abnormal data.
And generating a patrol report based on all the grid data determined to be abnormal.
Further, the power grid data further includes a voltage difference value between the first bus and the second bus, and a sum of an active value and a reactive value of each side of the transformer, and after receiving the power grid data transmitted by each of the plurality of substations, the method further includes:
Judging whether the voltage difference value of the first bus and the second bus included in each power grid data is within a second preset range, and judging the power grid data as abnormal data if the voltage difference value of the first bus and the second bus included in the power grid data is outside the second preset range;
judging whether the sum of the active value and the reactive value of each side of the transformer included in each power grid data is within a third preset range, and judging that the power grid data is abnormal data if the sum of the active value and the reactive value of each side of the transformer included in the power grid data is outside the third preset range;
and generating a patrol report based on all the grid data determined to be abnormal.
Further, the power grid data further includes a state of a communication link of the plant station, and after receiving the power grid data transmitted by each of the plurality of substations, the method further includes:
judging whether the communication links of the stations included in the power grid data are in an interrupted state, and if the communication links of the stations selected in the power grid data are in an interrupted state, judging that the power grid data are abnormal data.
Judging whether alarm suppression information of a station, alarm suppression information of an interval, alarm suppression information of a circuit breaker and alarm suppression information of a protection signal table exist in each piece of power grid data.
If any one of the alarm suppression information of the station, the alarm suppression information of the interval, the alarm suppression information of the circuit breaker and the alarm suppression information of the protection signal table exists in the power grid data, judging that the power grid data is abnormal data.
And generating a patrol report based on all the grid data determined to be abnormal.
Further, the server pre-stores the device identifiers of the substations and the areas corresponding to the device identifiers respectively, and the method further includes:
and receiving the power grid data and the equipment identification transmitted by each transformer substation.
And carrying out regional division on the power grid data transmitted by each transformer substation according to the equipment identifier transmitted by each transformer substation.
Further, the server encrypts and stores each piece of power grid data, the server also pre-stores identity information of a user, and the method further comprises:
and receiving a login request of a user, wherein the login request comprises the identity information of the user and an operation request.
And judging whether the identity information of the user is consistent with the pre-stored identity information of the user according to the login request.
And if the identity information of the user is consistent with the prestored identity information of the user, decrypting the encrypted power grid data, responding to the operation request of the user, and displaying the decrypted power grid data.
The utility model provides a power grid data inquiry device is applied to the server in the power dispatching system, power grid data inquiry device includes receiving module, processing module and generating module.
The receiving module is used for receiving power grid data transmitted by each transformer substation in the plurality of transformer substations, wherein the power grid data comprises remote signaling in the plant stations and the intervals and remote measuring values in the plant stations and the intervals.
And the processing module judges whether the remote signaling in the plant stations and the intervals included in the power grid data is in an action state, whether the remote sensing values in the plant stations and the intervals are in an out-of-limit state and whether the remote sensing values in the plant stations and the intervals are changed in preset time.
If the remote signaling in the stations and the intervals included in the power grid data is in an action state, judging that the power grid data is abnormal data; if the remote measurement values in the stations and the intervals included in the power grid data are in an out-of-limit state, judging that the power grid data are abnormal data; and if the remote measurement values in the stations and the intervals included in the power grid data are unchanged in the preset time, judging that the power grid data are abnormal data.
The generation module is used for generating a patrol report based on all the power grid data determined to be abnormal.
Further, the power grid data also comprises a difference value between the average value of the B-phase current and the C-phase current in the three-phase current of the bus-tie switch and the maximum value or the minimum value of the A-phase current, and the processing module is also used for judging whether a set identifier exists in each power grid data after receiving the power grid data transmitted by each transformer substation in the plurality of transformer substations; if the set identifier exists in the power grid data, judging the power grid data as abnormal data; the setting identification comprises an overhaul identification and an information blocking identification.
The processing module is further used for judging whether the difference value between the average value of the B-phase current and the C-phase current in the bus-tie switch three-phase currents and the maximum value or the minimum value of the A-phase current included in the power grid data is in a first preset range; and if the difference value between the average value of the B-phase current and the C-phase current in the three-phase current of the bus-tie switch and the maximum value or the minimum value of the A-phase current in the power grid data is out of the first preset range, judging that the power grid data is abnormal data.
The generation module is used for generating a patrol report based on all the power grid data determined to be abnormal.
Further, the power grid data further includes a voltage difference value of the first bus and the second bus, and a sum of an active value and a reactive value of each side of the transformer, and after receiving the power grid data transmitted by each transformer substation in the plurality of transformer substations, the processing module is further configured to determine whether the voltage difference value of the first bus and the second bus included in each power grid data is within a second preset range, and if the voltage difference value of the first bus and the second bus included in the power grid data is outside the second preset range, determine that the power grid data is abnormal data.
The processing module is further configured to determine whether a sum of an active value and a reactive value of each side of the transformer included in each power grid data is within a third preset range, and if the sum of the active value and the reactive value of each side of the transformer included in the power grid data is outside the third preset range, determine that the power grid data is abnormal data.
The generation module is used for generating a patrol report based on all the power grid data determined to be abnormal.
Further, the power grid data further includes a state of a communication link of the plant, and after receiving the power grid data transmitted by each of the plurality of substations, the processing module is further configured to determine whether the communication link of the plant included in each of the power grid data is in an interrupted state, and if the communication link of the selected plant in the power grid data is in the interrupted state, determine that the power grid data is abnormal data.
The processing module is also used for judging whether the alarm suppression information of the station, the alarm suppression information of the interval, the alarm suppression information of the circuit breaker and the alarm suppression information of the protection signal table exist in the power grid data or not; if any one of the alarm suppression information of the station, the alarm suppression information of the interval, the alarm suppression information of the circuit breaker and the alarm suppression information of the protection signal table exists in the power grid data, judging that the power grid data is abnormal data.
The generation module is used for generating a patrol report based on all the power grid data determined to be abnormal.
According to the power grid data query method and device, through receiving power grid data transmitted by each transformer substation in a plurality of transformer substations, after receiving the power grid data transmitted by each transformer substation, whether remote signaling in a station and an interval included in each power grid data is in an action state, whether a telemetry value in the station and the interval is in an out-of-limit state or not and whether the telemetry value in the station and the interval changes in a preset time are judged; if the remote signaling in the station and the interval included in the power grid data is in an action state, judging that the power grid data is abnormal data; if the remote measurement values in the stations and the intervals included in the power grid data are in an out-of-limit state, judging that the power grid data are abnormal data; if the remote measurement values in the stations and the intervals included in the power grid data are unchanged within a preset time, judging that the power grid data are abnormal data; after all abnormal power grid data are judged, a patrol report is generated based on all the power grid data judged to be abnormal, so that the abnormal data in the power grid data can be quickly distinguished and inquired, and the accuracy is high.
The foregoing objects, features and advantages of the disclosure will be more readily apparent from the following detailed description of the preferred embodiments taken in conjunction with the accompanying drawings.
Drawings
For a clearer description of the technical solutions of the present disclosure, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present disclosure and should not be considered as limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a block diagram of a server in a power dispatching system provided by the present disclosure.
Fig. 2 is a schematic flow chart of a power grid data query method provided by the present disclosure.
Fig. 3 is a schematic diagram of an interface of the inspection report provided in the present disclosure.
Fig. 4 is another flow chart of the grid data query method provided in the present disclosure.
Fig. 5 is a schematic flow chart of another power grid data query method provided in the present disclosure.
Fig. 6 is a schematic flow chart of another power grid data query method provided in the present disclosure.
Fig. 7 is a schematic flow chart of another power grid data query method provided in the present disclosure.
Fig. 8 is a schematic flow chart of another power grid data query method provided in the present disclosure.
Fig. 9 is a block schematic diagram of a grid data query apparatus provided in the present disclosure.
Icon: 100-a server side; 10-a power grid data query device; 11-a receiving module; 12-a processing module; 13-a generation module; a 20-processor; 30-memory.
Detailed Description
The following description of the embodiments of the present disclosure will be made clearly and fully with reference to the accompanying drawings in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present disclosure. The components of the present disclosure, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of the disclosure, as claimed, but is merely representative of selected embodiments of the disclosure. All other embodiments, which can be made by those skilled in the art based on the embodiments of this disclosure without making any inventive effort, are intended to be within the scope of this disclosure.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The operation state of monitoring equipment in a power dispatching system is checked by the existing power dispatching monitoring personnel, and the current abnormal situation of power grid equipment is mainly checked manually.
With the continuous expansion of the power grid scale, the range of monitoring equipment is wider and wider, and the power grid data accessed into a power dispatching system is also explosive. By inquiring the power grid data manually, abnormal data and normal data can be displayed together, so that the abnormal data and the normal data are difficult to distinguish and clear and are easy to be overlooked.
Based on the above researches, the disclosure provides a method and a device for querying power grid data to improve the problem of complaints.
Referring to fig. 1 in combination, the power grid data query method provided by the present disclosure is applied to a server 100 in the power dispatching system shown in fig. 1, and the server 100 executes the power grid data query method provided by the present disclosure. The server 100 includes a power grid data query device 10, a processor 20, and a memory 30; the memory 30 and the various elements of the processor 20 are electrically connected directly or indirectly to each other to achieve data transmission or interaction. For example, the elements may be electrically connected directly to each other via one or more communication buses or signal lines. The grid data query apparatus 10 includes at least one software functional module that may be stored in the memory 30 in the form of software or Firmware (Firmware), and the processor 20 executes various functional applications and data processing by running software programs and modules stored in the memory 30.
The Memory 30 may be, but is not limited to, random access Memory (Random Access Memory, RAM), read Only Memory (ROM), programmable Read Only Memory (Programmable Read-Only Memory, PROM), erasable Read Only Memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable Read Only Memory (Electric Erasable Programmable Read-Only Memory, EEPROM), etc.
The processor 20 may be an integrated circuit chip with signal processing capabilities. The processor 20 may be a general purpose processor including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.
Referring to fig. 2 in combination, fig. 2 is a schematic flow chart of the power grid data query method provided in the present disclosure, and a specific flow chart of the power grid data query method shown in fig. 2 is described in detail below.
Step S10: and receiving the power grid data transmitted by each of the plurality of substations.
The power grid data comprises remote signaling in the plant stations and the intervals and remote measuring values in the plant stations and the intervals. In a power system, a plant is used as a node in the power system, and an interval refers to a collection of power equipment (a disconnecting link, a circuit breaker, a grounding disconnecting link, a bus, a transformer, a capacitor, an ac line segment, and the like) in the power system in terms of power flow calculation and the like. The remote signaling refers to the opening amount of remote communication data, and is to remotely transmit the equipment status signal of the monitored station to a power dispatching system, such as the on/off state of a breaker or a disconnecting switch, the action/reset of a protection signal and the like, and is usually represented by 1 or 2 binary digits. Telemetry refers to the analog quantity of telemechanical communication data, such as line current, voltage, active power, bus voltage, power flow in the system, active and reactive loads, electrical quantities, etc., typically represented by binary integer, binary code value, floating point number, etc.
Step S20: and judging whether the remote signaling in the plant stations and the intervals included in the power grid data is in an action state, whether the remote sensing values in the plant stations and the intervals are in an out-of-limit state and whether the remote sensing values in the plant stations and the intervals are changed in preset time.
Step S21: if the remote signaling in the plant stations and the intervals included in the power grid data is in an action state, judging that the power grid data is abnormal data; if the remote measurement values in the stations and the intervals included in the power grid data are in an out-of-limit state, judging that the power grid data are abnormal data; and if the remote measurement values in the stations and the intervals included in the power grid data are unchanged in the preset time, judging that the power grid data are abnormal data.
The remote signaling in the plant station and the interval refers to a state information value in the plant station and the interval, and the remote sensing value in the plant station and the interval refers to a modeling amount of power data in the plant station and the interval. After receiving the power grid data transmitted by each transformer substation, judging whether the remote signaling in the stations and the intervals in each power grid data is in an action state, judging that the power grid data is abnormal data if the remote signaling in the stations and the intervals included in the power grid data is in the action state, and judging that the power grid data is normal data if the remote signaling in the stations and the intervals included in the power grid data is not in the action state. Optionally, the present disclosure adopts binary system to represent remote signaling in the plant station and the interval, if the remote signaling of the plant station and the interval is 1, the remote signaling of the plant station and the interval is in an action state, and if the remote signaling of the plant station and the interval is 0, the remote signaling of the plant station and the interval is in a normal state.
After receiving the power grid data transmitted by each transformer substation, judging whether the telemetry values in the stations and the intervals included in the power grid data are in an out-of-limit state, and judging that the power grid data are abnormal data if the telemetry values in the stations and the intervals included in the power grid data are in the out-of-limit state, namely the telemetry values in the stations and the intervals exceed the highest limit or are lower than the lowest limit, and judging that the power grid data are normal data if the telemetry values in the stations and the intervals included in the power grid data are not in the out-of-limit state.
In addition, whether the telemetry values in the stations and the intervals included in the power grid data change within a preset time is determined, and for each power grid data, if the telemetry values in the stations and the intervals included in the power grid data do not change within the preset time, that is, the telemetry value data are not refreshed and the telemetry value data do not change, the power grid data are determined to be abnormal data, and if the telemetry values in the stations and the intervals included in the power grid data change within the preset time, the power grid data are determined to be normal data.
Step S22: and generating a patrol report based on all the grid data determined to be abnormal.
After all the grid data are queried, a patrol report is generated based on all the grid data determined to be abnormal, further referring to fig. 3, fig. 3 is an interface schematic diagram of the patrol report provided by the present disclosure. The inspection report further comprises an inquiry time, an inquiry condition (such as whether remote signaling in the station and the interval is in an action state, whether remote measurement values in the station and the interval are in an out-of-limit state, whether the remote measurement values in the station and the interval are changed in a preset time and the like), a data value and state information of the power grid data which are judged to be abnormal, and according to the inspection report, a worker can quickly, conveniently and comprehensively grasp the running state of equipment in the power dispatching system and the abnormal condition of the power grid data, and the inspection report is simple to operate and high in efficiency.
Further, referring to fig. 4 in combination, the power grid data further includes a difference value between an average value of the B-phase current and the C-phase current in the three-phase current of the busbar switch and a maximum value or a minimum value of the a-phase current, and after receiving the power grid data transmitted by each of the plurality of substations, the method further includes steps S30 to S32.
Step S30: judging whether the set identification exists in each piece of power grid data, and if the set identification exists in the power grid data, judging that the power grid data is abnormal data.
The setting identifier comprises an overhaul identifier and an information blocking identifier; the information blocking refers to blocking the state of equipment (such as the opening and closing of a breaker) into a fixed state, if the state of one power equipment is blocked into the fixed state, an information blocking identifier is added to the power equipment in a power dispatching system, and the overhaul identifier indicates that the power equipment is in an overhaul state.
After receiving the power grid data transmitted by each transformer substation, judging whether a set identifier exists in each power grid data, and judging that the power grid data is abnormal data if the set identifier exists in the power grid data and judging that the power grid data is normal data if the set identifier does not exist in the power grid data aiming at each power grid data.
Step S31: judging whether the difference value between the average value of the B-phase current and the C-phase current in the three-phase currents of the bus-tie switch and the maximum value or the minimum value of the A-phase current in each power grid data is within a first preset range, and judging the power grid data as abnormal data if the difference value between the average value of the B-phase current and the C-phase current in the three-phase currents of the bus-tie switch and the maximum value or the minimum value of the A-phase current in the power grid data is outside the first preset range.
After receiving the power grid data transmitted by each transformer substation, it is further required to determine whether a difference value between a maximum value or a minimum value of the B-phase current and the C-phase current in the three-phase current of the bus-tie switch included in each power grid data and the a-phase current is within a first preset range. Optionally, in this disclosure, the first preset range is 5% of the maximum value or the minimum value of the a-phase current, that is, whether the difference between the average value of the B-phase current and the C-phase current and the maximum value or the minimum value of the a-phase current is within 5% of the maximum value or the minimum value of the a-phase current. Furthermore, the first preset range may be flexibly set according to the actual application situation, which is not limited in the disclosure.
And aiming at each power grid data, if the difference value between the average value of the B-phase current and the C-phase current in the three-phase current of the bus-tie switch and the maximum value or the minimum value of the A-phase current included in the power grid data is out of the first preset range, judging that the power grid data is abnormal data, and if the difference value is in the first preset range, judging that the power grid data is normal data.
Step S32: and generating a patrol report based on all the grid data determined to be abnormal.
After all the grid data are queried, a patrol report is generated based on all the grid data determined to be abnormal, and according to the patrol report, a worker can conveniently and comprehensively grasp the running state of equipment in a power dispatching system and the abnormal condition of the grid data, and the specific process is described with reference to step S22.
Further, referring to fig. 5 in combination, the power grid data further includes a voltage difference between the first bus and the second bus, and a sum of an active value and a reactive value of each side of the transformer, and after receiving the power grid data transmitted by each of the plurality of substations, the method further includes steps S40 to S42.
S40: judging whether the voltage difference value of the first bus and the second bus included in each power grid data is within a second preset range, and judging the power grid data as abnormal data if the voltage difference value of the first bus and the second bus included in the power grid data is outside the second preset range.
Optionally, in the present disclosure, the second preset range is 2KV, and further, the second preset range may also be flexibly set according to an actual application situation, which is not limited in the present disclosure. And judging whether the voltage difference value of the first bus and the second bus included in each power grid data is within a second preset range or not, and judging that the power grid data is abnormal data according to each power grid data if the voltage difference value of the first bus and the second bus included in the power grid data is out of the second preset range, and judging that the power grid data is normal data if the voltage difference value of the first bus and the second bus is within the second preset range.
S41: and judging whether the sum of the active value and the reactive value of each side of the transformer included in each power grid data is within a third preset range, and if the sum of the active value and the reactive value of each side of the transformer included in the power grid data is outside the third preset range, judging that the power grid data is abnormal data.
After receiving the power grid data transmitted by each transformer substation, whether the sum of the active value and the reactive value of each side of the transformer included in each power grid data is within a third preset range or not is further judged. Optionally, the third preset range is 5% of the transformer capacity, i.e. whether the sum of the active value and the reactive value of each side of the transformer is within 5% of the transformer capacity. Further, the third preset range may be flexibly set according to the actual application situation, which is not limited in the disclosure.
And for each piece of power grid data, if the sum of the active value and the reactive value of each side of the transformer included in the power grid data is out of the third preset range, judging the power grid data as abnormal data, and if the sum of the active value and the reactive value of each side of the transformer is in the third preset range, judging the power grid data as normal data.
S42: and generating a patrol report based on all the grid data determined to be abnormal.
After all the grid data are queried, a patrol report is generated based on all the grid data determined to be abnormal, and the specific process is described with reference to step S22.
Further, referring to fig. 6 in combination, the power grid data further includes a status of a communication link of the plant, and after receiving the power grid data transmitted by each of the plurality of substations, the method further includes steps S50 to S52.
Step S50: judging whether the communication links of the stations included in the power grid data are in an interrupted state, and if the communication links of the stations selected in the power grid data are in an interrupted state, judging that the power grid data are abnormal data.
The communication link refers to a communication link between a plant (i.e., a transformer substation) and a power dispatching system, after receiving power grid data transmitted by each transformer substation, the communication link of the plant included in each power grid data is judged whether to be in an interrupt state, and for each power grid data, if the communication link of a selected plant in the power grid data is in an interrupt state, the power grid data is judged to be abnormal, and if the communication link of the selected plant in the power grid data is in a connection state, the power grid data is judged to be normal.
Step S51: judging whether alarm suppression information of a station, alarm suppression information of an interval, alarm suppression information of a circuit breaker and alarm suppression information of a protection signal table exist in each piece of power grid data, and judging that the power grid data is abnormal data if any one of the alarm suppression information of the station, the alarm suppression information of the interval, the alarm suppression information of the circuit breaker and the alarm suppression information of the protection signal table exists in the power grid data.
The alarm suppression information is generated by the power dispatching system, if alarm suppression information exists in one of the power equipment, the state information of the power equipment is hidden, after receiving the power grid data transmitted by each transformer substation, whether the alarm suppression information of the plant station, the alarm suppression information of the interval, the alarm suppression information of the circuit breaker and the alarm suppression information of the protection signal table exist in the power grid data is also needed to be judged, and if the alarm suppression information does not exist, the power grid data is judged to be abnormal data, and if the alarm suppression information does not exist, the power grid data is judged to be normal data.
Step S52: and generating a patrol report based on all the grid data determined to be abnormal.
After all the grid data are queried, a patrol report is generated based on all the grid data determined to be abnormal, and the specific process is described with reference to step S22.
Further, in the present disclosure, the query condition includes whether the remote signaling in the plant and the interval is in an action state, whether the telemetry value in the plant and the interval is in an out-of-limit state, whether the telemetry value in the plant and the interval is changed in a preset time, whether a set flag exists, whether a difference value between a maximum value or a minimum value of a phase current and an average value of a phase current and a phase current in a bus-bar switching three-phase current is within a first preset range, whether a voltage difference value of a bus and a bus is within a second preset range, whether a sum of an active value and a reactive value of each side of the transformer is within a third preset range, whether a communication link of the plant is in an interrupt state, and whether alarm suppression information of the plant, the interval, the circuit breaker and the protection signal exists. And inquiring the power grid data transmitted by each transformer substation according to the inquiry conditions, further, rapidly and accurately screening out abnormal data in the received power grid data, and generating a patrol report based on the abnormal data, the inquiry time and the inquiry conditions, thereby being convenient for staff to comprehensively master the running state of equipment in the power dispatching system and having high working efficiency.
Further, referring to fig. 7 in combination, in order to further improve convenience, the server 100 pre-stores the device identifiers of the substations and the areas corresponding to the device identifiers, and the method further includes steps S60 to S61.
Step S60: and receiving the power grid data and the equipment identification transmitted by each transformer substation.
Each of the substations has a unique device identifier, and the server 100 pre-stores the device identifier of each of the substations and the area corresponding to each of the device identifiers.
Step S61: and carrying out regional division on the power grid data transmitted by each transformer substation according to the equipment identifier transmitted by each transformer substation.
After the power grid data and the equipment identifiers transmitted by the substations are received, the power grid data transmitted by the substations are divided into areas according to the equipment identifiers transmitted by the substations, and then the received power grid data are inquired according to different areas, so that the convenience of inquiring the power grid data is further improved.
Further, referring to fig. 8 in combination, in order to improve the security of the grid data query, the server 100 encrypts and stores each piece of grid data, the server 100 further pre-stores identity information of the user, and the method further includes steps S62 to S63.
Step S62: a login request of a user is received.
The login request comprises the identity information of the user and an operation request.
Step S63: and judging whether the identity information of the user is consistent with the pre-stored identity information of the user according to the login request. And if the identity information of the user is consistent with the prestored identity information of the user, decrypting the encrypted power grid data, responding to the operation request of the user, and displaying the decrypted power grid data.
After receiving the power grid data transmitted by each transformer substation, the server 100 encrypts and stores each power grid data, meanwhile, the server 100 pre-stores identity information of a user, if the user needs to query the power grid data, the user firstly sends a login request to the server 100, wherein the login request comprises the identity information of the user and an operation request, optionally, when sending the login request, the identity information of the user can be fingerprint information, and the server 100 confirms the identity information of the user through a fingerprint identifier to judge whether the identity information of the user is consistent with the pre-stored identity information of the user. If the identity information of the user is consistent with the prestored identity information of the user, decrypting the encrypted power grid data, responding to the operation request of the user, inquiring the received power grid data according to the inquiry condition, generating a patrol report for displaying the abnormal data obtained by inquiry, and ensuring the safety of the inquiry of the power grid data.
Further, referring to fig. 9 in combination, the disclosure provides a power grid data query device 10, which is applied to a server 100 in a power dispatching system, where the power grid data query device 10 includes a receiving module 11, a processing module 12 and a generating module 13.
The receiving module 11 is configured to receive power grid data transmitted by each of the plurality of substations, where the power grid data includes remote signaling in the plant and the interval and telemetry values in the plant and the interval.
The processing module 12 determines whether the remote signaling in the plant and the interval included in each of the power grid data is in an operating state, whether the telemetry value in the plant and the interval is in an out-of-limit state, and whether the telemetry value in the plant and the interval changes within a preset time.
If the remote signaling in the stations and the intervals included in the power grid data is in an action state, judging that the power grid data is abnormal data; if the remote measurement values in the stations and the intervals included in the power grid data are in an out-of-limit state, judging that the power grid data are abnormal data; and if the remote measurement values in the stations and the intervals included in the power grid data are unchanged in the preset time, judging that the power grid data are abnormal data.
The generating module 13 is configured to generate a patrol report based on all the grid data determined to be abnormal.
Further, the power grid data further includes a difference value between an average value of B-phase current and C-phase current in the three-phase current of the bus-tie switch and a maximum value or a minimum value of the a-phase current, and after receiving the power grid data transmitted by each of the plurality of substations, the processing module 12 is further configured to determine whether a set identifier exists in each of the power grid data; if the set identifier exists in the power grid data, judging the power grid data as abnormal data; the setting identification comprises an overhaul identification and an information blocking identification.
The processing module 12 is further configured to determine whether a difference value between an average value of a B-phase current and a C-phase current in the bus-tie switch three-phase currents included in each of the power grid data and a maximum value or a minimum value of the a-phase current is within a first preset range; and if the difference value between the average value of the B-phase current and the C-phase current in the three-phase current of the bus-tie switch and the maximum value or the minimum value of the A-phase current in the power grid data is out of the first preset range, judging that the power grid data is abnormal data.
The generating module 13 is configured to generate a patrol report based on all the grid data determined to be abnormal.
Further, the power grid data further includes a voltage difference value of the first bus and the second bus, and a sum of an active value and a reactive value of each side of the transformer, and after receiving the power grid data transmitted by each of the plurality of substations, the processing module 12 is further configured to determine whether the voltage difference value of the first bus and the second bus included in each of the power grid data is within a second preset range, and if the voltage difference value of the first bus and the second bus included in the power grid data is outside the second preset range, determine that the power grid data is abnormal data.
The processing module 12 is further configured to determine whether a sum of an active value and a reactive value of each side of the transformer included in each power grid data is within a third preset range, and if the sum of the active value and the reactive value of each side of the transformer included in the power grid data is outside the third preset range, determine that the power grid data is abnormal data.
The generating module 13 is configured to generate a patrol report based on all the grid data determined to be abnormal.
Further, the power grid data further includes a state of a communication link of the plant, and after receiving the power grid data transmitted by each of the plurality of substations, the processing module 12 is further configured to determine whether the communication link of the plant included in each of the power grid data is in an interrupted state, and if the communication link of the selected plant in the power grid data is in the interrupted state, determine that the power grid data is abnormal data.
The processing module 12 is further configured to determine whether alarm suppression information of a plant station, alarm suppression information of an interval, alarm suppression information of a circuit breaker, and alarm suppression information of a protection signal table exist in each power grid data; if any one of the alarm suppression information of the station, the alarm suppression information of the interval, the alarm suppression information of the circuit breaker and the alarm suppression information of the protection signal table exists in the power grid data, judging that the power grid data is abnormal data.
The generating module 13 is configured to generate a patrol report based on all the grid data determined to be abnormal.
It will be clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the above-described power grid data query device 10 may refer to the corresponding process in the foregoing method, and will not be described in detail herein.
According to the power grid data query method and device, through receiving power grid data transmitted by each transformer substation in a plurality of transformer substations, after receiving the power grid data transmitted by each transformer substation, whether remote signaling in a station and an interval included in each power grid data is in an action state, whether a telemetry value in the station and the interval is in an out-of-limit state or not and whether the telemetry value in the station and the interval changes in a preset time are judged; if the remote signaling in the station and the interval included in the power grid data is in an action state, judging that the power grid data is abnormal data; if the remote measurement values in the stations and the intervals included in the power grid data are in an out-of-limit state, judging that the power grid data are abnormal data; if the remote measurement values in the stations and the intervals included in the power grid data are unchanged within a preset time, judging that the power grid data are abnormal data; after all abnormal power grid data are judged, a patrol report is generated based on all the power grid data judged to be abnormal, so that abnormal data in the power grid data can be rapidly inquired, and the accuracy is high.
In addition, after the abnormal data is obtained through query, the power grid data query method and device provided by the invention generate the inspection report based on the abnormal data, the query time and the query conditions, so that the working personnel can conveniently and comprehensively master the running state of equipment in the power dispatching system, and the working efficiency is high.
In the several embodiments provided in the present disclosure, it should be understood that the disclosed apparatus and method may be implemented in other manners as well. The apparatus and method embodiments described above are merely illustrative, for example, flow diagrams and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in various embodiments of the present disclosure may be integrated together to form a single portion, or each module may exist alone, or two or more modules may be integrated to form a single portion.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present disclosure may be embodied in essence or a part contributing to the prior art or a part of the technical solution, or in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, an electronic device, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present disclosure. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes. It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely an alternative embodiment of the present disclosure, and is not intended to limit the present disclosure, so that various modifications and variations may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (8)
1. The utility model provides a power grid data query method which is characterized in that the method is applied to a server in a power dispatching system, and the method comprises the following steps:
receiving power grid data transmitted by each transformer substation in a plurality of transformer substations, wherein the power grid data comprises remote signaling in a plant station and an interval and remote measuring values in the plant station and the interval;
judging whether remote signaling in the plant stations and the intervals included in the power grid data is in an action state, whether telemetry values in the plant stations and the intervals are in an out-of-limit state or not, and whether the telemetry values in the plant stations and the intervals change in preset time or not;
if the remote signaling in the plant stations and the intervals included in the power grid data is in an action state, judging that the power grid data is abnormal data; if the remote measurement values in the stations and the intervals included in the power grid data are in an out-of-limit state, judging that the power grid data are abnormal data; if the remote measurement values in the stations and the intervals included in the power grid data are unchanged within preset time, judging that the power grid data are abnormal data;
The power grid data also comprises a difference value between the average value of the B-phase current and the C-phase current in the three-phase current of the busbar switch and the maximum value or the minimum value of the A-phase current, and after receiving the power grid data transmitted by each transformer substation in the plurality of transformer substations, the method further comprises the steps of:
judging whether a set identifier exists in each power grid data; the setting identifier comprises an overhaul identifier and an information blocking identifier;
if the set identifier exists in the power grid data, judging the power grid data as abnormal data;
judging whether the difference value between the average value of the B-phase current and the C-phase current in the three-phase current of the bus-tie switch and the maximum value or the minimum value of the A-phase current included in each power grid data is in a first preset range;
if the difference value between the average value of the B-phase current and the C-phase current in the three-phase current of the bus-tie switch and the maximum value or the minimum value of the A-phase current included in the power grid data is out of the first preset range, judging that the power grid data is abnormal data, wherein the first preset range is 5% of the maximum value or the minimum value of the A-phase current;
and generating a patrol report based on all the grid data determined to be abnormal.
2. The method of claim 1, wherein the power grid data further includes a voltage difference between the first bus and the second bus, and a sum of an active value and a reactive value of each side of the transformer, and after receiving the power grid data transmitted by each of the plurality of substations, the method further includes:
Judging whether the voltage difference value of the first bus and the second bus included in each power grid data is within a second preset range, and judging the power grid data as abnormal data if the voltage difference value of the first bus and the second bus included in the power grid data is outside the second preset range;
judging whether the sum of the active value and the reactive value of each side of the transformer included in each power grid data is within a third preset range, and judging that the power grid data is abnormal data if the sum of the active value and the reactive value of each side of the transformer included in the power grid data is outside the third preset range;
and generating a patrol report based on all the grid data determined to be abnormal.
3. The method for querying power grid data according to claim 1, wherein the power grid data further comprises a status of a communication link of the plant, and after receiving the power grid data transmitted by each of the plurality of substations, the method further comprises:
judging whether the communication links of the stations included in the power grid data are in an interrupted state or not, and if the communication links of the stations selected in the power grid data are in an interrupted state, judging that the power grid data are abnormal data;
Judging whether alarm suppression information of a station, alarm suppression information of an interval, alarm suppression information of a circuit breaker and alarm suppression information of a protection signal table exist in each piece of power grid data;
if any one of alarm suppression information of a station, interval alarm suppression information, alarm suppression information of a circuit breaker and alarm suppression information of a protection signal table exists in the power grid data, judging the power grid data as abnormal data;
and generating a patrol report based on all the grid data determined to be abnormal.
4. A method for querying power grid data according to any one of claims 1 to 3, wherein the server pre-stores device identifiers of the substations and areas corresponding to the device identifiers respectively, and the method further comprises:
receiving power grid data and equipment identifiers transmitted by the substations;
and carrying out regional division on the power grid data transmitted by each transformer substation according to the equipment identifier transmitted by each transformer substation.
5. The method for querying power grid data according to claim 4, wherein the server encrypts and stores each piece of power grid data, the server further pre-stores identity information of a user, and the method further comprises:
Receiving a login request of a user, wherein the login request comprises identity information of the user and an operation request;
judging whether the identity information of the user is consistent with the pre-stored identity information of the user according to the login request;
and if the identity information of the user is consistent with the prestored identity information of the user, decrypting the encrypted power grid data, responding to the operation request of the user, and displaying the decrypted power grid data.
6. The power grid data query device is characterized by being applied to a server side in a power dispatching system, and comprises a receiving module, a processing module and a generating module;
the receiving module is used for receiving power grid data transmitted by each transformer substation in the plurality of transformer substations, wherein the power grid data comprises remote signaling in a plant station and an interval and a remote measuring value in the plant station and the interval;
the processing module judges whether remote signaling in the plant stations and the intervals included in the power grid data is in an action state, whether telemetry values in the plant stations and the intervals are in an out-of-limit state or not and whether the telemetry values in the plant stations and the intervals change in preset time or not;
if the remote signaling in the stations and the intervals included in the power grid data is in an action state, judging that the power grid data is abnormal data; if the remote measurement values in the stations and the intervals included in the power grid data are in an out-of-limit state, judging that the power grid data are abnormal data; if the remote measurement values in the stations and the intervals included in the power grid data are unchanged within preset time, judging that the power grid data are abnormal data;
The power grid data also comprises a difference value between the average value of the B-phase current and the C-phase current in the three-phase current of the bus-tie switch and the maximum value or the minimum value of the A-phase current, and the processing module is also used for judging whether a set identifier exists in each power grid data after receiving the power grid data transmitted by each transformer substation in the plurality of transformer substations; if the set identifier exists in the power grid data, judging the power grid data as abnormal data; the setting identifier comprises an overhaul identifier and an information blocking identifier;
the processing module is further used for judging whether the difference value between the average value of the B-phase current and the C-phase current in the bus-tie switch three-phase currents and the maximum value or the minimum value of the A-phase current included in the power grid data is in a first preset range; if the difference value between the average value of the B-phase current and the C-phase current in the three-phase current of the bus-tie switch and the maximum value or the minimum value of the A-phase current included in the power grid data is out of the first preset range, judging that the power grid data is abnormal data, wherein the first preset range is 5% of the maximum value or the minimum value of the A-phase current;
the generation module is used for generating a patrol report based on all the power grid data determined to be abnormal.
7. The power grid data query device according to claim 6, wherein the power grid data further includes a voltage difference value between a first bus and a second bus, and a sum of an active value and a reactive value of each side of the transformer, and the processing module is further configured to determine, after receiving the power grid data transmitted by each of the plurality of substations, whether the voltage difference value between the first bus and the second bus included in each of the power grid data is within a second preset range, and determine that the power grid data is abnormal data if the voltage difference value between the first bus and the second bus included in the power grid data is outside the second preset range;
the processing module is further configured to determine whether a sum of an active value and a reactive value of each side of the transformer included in each power grid data is within a third preset range, and if the sum of the active value and the reactive value of each side of the transformer included in the power grid data is outside the third preset range, determine that the power grid data is abnormal data;
the generation module is used for generating a patrol report based on all the power grid data determined to be abnormal.
8. The grid data query apparatus according to claim 6, wherein the grid data further includes a status of a communication link of a plant, and the processing module is further configured to determine, after receiving the grid data transmitted by each of the plurality of substations, whether the communication link of the plant included in each of the grid data is in an interrupted status, and determine that the grid data is abnormal if the communication link of the selected plant in the grid data is in an interrupted status;
The processing module is also used for judging whether the alarm suppression information of the station, the alarm suppression information of the interval, the alarm suppression information of the circuit breaker and the alarm suppression information of the protection signal table exist in the power grid data or not; if any one of alarm suppression information of a station, interval alarm suppression information, alarm suppression information of a circuit breaker and alarm suppression information of a protection signal table exists in the power grid data, judging the power grid data as abnormal data;
the generation module is used for generating a patrol report based on all the power grid data determined to be abnormal.
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