CN114899942A - Monitoring system of active power distribution network - Google Patents
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00004—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the power network being locally controlled
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
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Abstract
The application discloses monitoring system of active power distribution network, through model data module, operation data module and photovoltaic data module, show electric power model data, electric power operation data, dispatch management data, distributed photovoltaic model data and distributed photovoltaic power data on regulation and control cloud interface, and electric power operation data include because the residual power transmission to the comprehensive data of transformer substation (the data of sending on) after distributed photovoltaic on the spot consumed the saturation to make monitoring platform can show the data of sending on, thereby provide the operation personnel and look over.
Description
Technical Field
The application relates to the technical field of regulation and control systems, in particular to a monitoring system of an active power distribution network.
Background
At present, according to the national 'double-carbon' target and power development planning, an original passive power distribution network is gradually converted into an active power distribution network at the present stage, distributed photovoltaic power generation corresponding to the active power distribution network is a novel power generation system, and the pollution to the environment is reduced. In the prior art, only the power transmitted by the transformer substation to the distributed photovoltaic system can be collected, so that an operator on duty at a regulation and control center cannot accurately determine whether the active power distribution network is safe to operate.
Disclosure of Invention
The present application is proposed to solve the above-mentioned technical problems. The embodiment of the application provides a dispatching system of an active power distribution network, and the problem that only power transmitted to a distributed photovoltaic by a transformer substation can be collected is solved.
According to an aspect of the present application, there is provided a monitoring system of an active power distribution network, comprising: the model data module is used for storing electric power model data; the operation data module is used for storing electric power operation data and scheduling management data; the power operation data comprise power of distributed photovoltaic power to be transmitted to a transformer substation, and the scheduling management data comprise data generated when the active power distribution network executes a preset work flow; the photovoltaic data module is used for storing distributed photovoltaic power data and distributed model data; the distributed power data comprises power data of the distributed photovoltaic work, and the distributed model data represents data obtained by performing data processing on operation data of the distributed photovoltaic by a first preset model; and the monitoring platform is in communication connection with the model data module, the operation data module and the photovoltaic data module respectively and is used for displaying the power model data, the power operation data, the scheduling management data, the distributed photovoltaic model data and the distributed photovoltaic power data on a regulation and control cloud interface.
In an embodiment, the monitoring platform includes a cluster module, the cluster module is in communication connection with the model data module, the operation data module, the photovoltaic data module, and the regulation and control cloud interface, respectively, and the cluster module is configured to combine the power model data, the scheduling management data, the distributed photovoltaic model data, the power operation data, and the distributed photovoltaic power data to obtain combined data.
In one embodiment, the monitoring platform includes a first database in which data related to the active power distribution network is stored.
In an embodiment, the operational data module is communicatively coupled to a substation system including the substation configured to generate the electrical operational data.
In an embodiment, the electric power operation data includes an active power distribution network power uploading rate, wherein the active power distribution network power uploading rate is obtained through calculation according to the number of active power distribution network lines in a target area and the total number of active power distribution network lines in the target area, and the active power distribution network power uploading rate represents the power of the surplus power of the active power distribution network transmitted to the substation.
In an embodiment, the power operation data includes a single bus voltage safety level, and the operation data module calculates the single bus voltage safety level according to a maximum voltage value of a single bus of the active power distribution network, a minimum voltage value of the single bus of the active power distribution network, and an actual voltage of the bus of the active power distribution network.
In an embodiment, the operation data module is in communication connection with an execution system, and the execution system is configured to receive the scheduling management data generated after the active power distribution network executes a preset workflow.
In an embodiment, the scheduling management data includes an active power distribution network live working level, and the operation data module calculates the active power distribution network live working level according to the active power distribution network live working instruction number and the active power distribution network working instruction total number.
In an embodiment, the scheduling management data includes an active power distribution network power failure operation level at the time of the error, wherein the operation data module calculates the active power distribution network power failure operation level at the time of the error according to the number of the active power distribution network power failure operation instructions at night and the total number of the active power distribution network operation instructions.
In an embodiment, the distributed photovoltaic power data includes a distributed photovoltaic centralized collection level, and the operation data module calculates the distributed photovoltaic centralized collection level according to the collected distributed photovoltaic installed capacity and the total distributed photovoltaic installed capacity.
The application provides a monitoring system of active power distribution network includes: the monitoring system comprises a model data module, an operation data module, a photovoltaic data module and a monitoring platform, wherein the model data module is used for storing electric power model data; the operation data module is used for storing electric power operation data and scheduling management data, wherein the electric power operation data comprise power of distributed photovoltaic power which is transmitted to a transformer substation, the scheduling management data comprise data generated by an active power distribution network executing a preset work flow and are used for storing distributed photovoltaic power data and distributed model data, the distributed power data comprise electric power data of distributed photovoltaic power, and the distributed model data represent data obtained by data processing of the operation data of the distributed photovoltaic power by a first preset model; and the system is respectively in communication connection with the model data module, the operation data module and the photovoltaic data module and is used for displaying the power model data, the power operation data, the scheduling management data, the distributed photovoltaic model data and the distributed photovoltaic power data on a regulation and control cloud interface. Through the model data module, the operation data module and the photovoltaic data module, the power model data, the power operation data, the scheduling management data, the distributed photovoltaic model data and the distributed photovoltaic power data are displayed on a regulation and control cloud interface, and the power operation data comprise comprehensive data (uploading data) transmitted to a transformer substation by residual power generated after distributed photovoltaic on-site digestion saturation, so that the monitoring platform can display the uploading data, and operation personnel can check the data.
Drawings
The above and other objects, features and advantages of the present application will become more apparent by describing in more detail embodiments of the present application with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings, like reference numbers generally indicate like parts or steps.
Fig. 1 is a schematic structural diagram of a monitoring system for an active power distribution network according to an exemplary embodiment of the present application.
Fig. 2 is a schematic structural diagram of a monitoring system for an active power distribution network according to another exemplary embodiment of the present application.
Fig. 3 is a schematic structural diagram of a monitoring system for an active power distribution network according to another exemplary embodiment of the present application.
Fig. 4 is a schematic structural diagram of a monitoring system for an active power distribution network according to another exemplary embodiment of the present application.
Fig. 5 is a schematic structural diagram of a monitoring system for an active power distribution network according to another exemplary embodiment of the present application.
Fig. 6 is a schematic structural diagram of a monitoring system for an active power distribution network according to another exemplary embodiment of the present application.
Detailed Description
Hereinafter, example embodiments according to the present application will be described in detail with reference to the accompanying drawings. It should be understood that the described embodiments are only some embodiments of the present application and not all embodiments of the present application, and that the present application is not limited by the example embodiments described herein.
Fig. 1 is a schematic structural diagram of a monitoring system for an active power distribution network according to an exemplary embodiment of the present application. As shown in fig. 1, the monitoring system for an active power distribution network includes: the power distribution system comprises a model data module 11, an operation data module 12, a photovoltaic data module 13 and a monitoring platform 14, wherein the model data module 11 is used for storing power model data, the power model data comprises power data of work of an active power distribution network, the operation data module 12 is used for storing power operation data and scheduling management data, the power operation data comprises power of distributed photovoltaic work which is sent to a transformer substation, the scheduling management data comprises data generated by the active power distribution network executing a preset work flow, the photovoltaic data module 13 is used for storing distributed photovoltaic power data and distributed model data, the distributed power data comprises power data of distributed photovoltaic work, the distributed model data represents that the power data of distributed photovoltaic work are subjected to data processing according to a first preset model to obtain data, and the monitoring platform 14 is respectively connected with the model data module 11, the photovoltaic data module 13 and the monitoring platform 14, The operation data module 12 is in communication connection with the photovoltaic data module 13, and the monitoring platform 14 is configured to display the power model data, the power operation data, the scheduling management data, the distributed photovoltaic model data, and the distributed photovoltaic power data on the regulation and control cloud interface 15.
The model data module 11 stores power model data, where the power model data is obtained by performing data processing on power data in a preset database according to a second preset model, where the data in the preset database may be manually input or may receive power data of a device related to the active power distribution network. The operation data module stores electric power operation data and scheduling management data, and the scheduling management data comprise data of residual power transmitted to the transformer substation after distributed photovoltaic work. Usually, a substation issues power to the distributed photovoltaic, the distributed photovoltaic works according to the issued power, once the issued power exceeds the rated power of the distributed photovoltaic, the residual power is sent to the substation, and the damage to the substation is caused. The scheduling management data includes data of the active power distribution network executing a preset work flow, for example, the number of tickets for executing the preset work flow, where the number of tickets represents the number of work orders. The photovoltaic data module stores distributed photovoltaic power data and distributed model data, the distributed power data are obtained by performing data processing on power data of distributed photovoltaic work, and the distributed model data are obtained by performing data processing on operation data of distributed photovoltaic according to a first preset model. Then, the analysis display server of the monitoring platform 14 sends the power model data, the power operation data, the scheduling management data, the distributed photovoltaic model data and the distributed photovoltaic power data to the regulation cloud interface 15 to display the data. In addition, the upward transmission in the application can be understood as the reverse transmission of power or electric quantity to the transformer substation by the distributed photovoltaic, and the reverse transmission is performed when the power or the electric quantity is transmitted downwards. The photovoltaic work can not be consumed on site, and only the power which can not be consumed can be transmitted to the transformer substation.
The application provides a monitoring system of active power distribution network includes: the monitoring system comprises a model data module, an operation data module, a photovoltaic data module and a monitoring platform, wherein the model data module is used for storing electric power model data; the operation data module is used for storing electric power operation data and scheduling management data, wherein the electric power operation data comprise power of distributed photovoltaic power which is transmitted to a transformer substation, the scheduling management data comprise data generated by an active power distribution network executing a preset work flow and are used for storing distributed photovoltaic power data and distributed model data, the distributed power data comprise electric power data of distributed photovoltaic power, and the distributed model data represent data obtained by data processing of the operation data of the distributed photovoltaic power by a first preset model; and the system is respectively in communication connection with the model data module, the operation data module and the photovoltaic data module and is used for displaying the power model data, the power operation data, the scheduling management data, the distributed photovoltaic model data and the distributed photovoltaic power data on a regulation and control cloud interface. The power model data, the power operation data, the scheduling management data, the distributed photovoltaic model data and the distributed photovoltaic power data are displayed on a regulation and control cloud interface through the model data module, the operation data module and the photovoltaic data module, and the power operation data comprise comprehensive data (uploading data) which are transmitted to a transformer substation by residual power after the distributed photovoltaic is consumed and saturated on site, so that the monitoring platform can display the downloading data, and operation personnel can check the data.
Fig. 2 is a schematic structural diagram of a monitoring system for an active power distribution network according to another exemplary embodiment of the present application. As shown in fig. 2, the monitoring platform 14 includes a cluster module 141, the cluster module 141 is in communication connection with the model data module 11, the operation data module 12, the photovoltaic data module 13, and the control cloud interface 15, and the cluster module 141 is configured to merge the power model data, the distributed photovoltaic model data, the power operation data, and the distributed photovoltaic power data to obtain merged data.
The cluster module in the monitoring platform can be in communication connection with the model data module 11, the operation data module 12, the photovoltaic data module 13 and the regulation and control cloud interface 15, and the cluster module merges power model data, scheduling management data, distributed photovoltaic model data, power operation data and distributed photovoltaic power data to obtain merged data, and displays the merged data on the regulation and control cloud interface. The cluster module 141 may be an ETL cluster (essential to ETL work is to extract data from each data source, convert the data, and finally load the filling data into a table after data warehouse dimension modeling), and the model data module 11, the operation data module 12, and the photovoltaic data module 13 may be parallel by using the ETL cluster, so as to increase the operation speed of the monitoring platform.
Fig. 3 is a schematic structural diagram of a monitoring system for an active power distribution network according to another exemplary embodiment of the present application. As shown in fig. 3, the monitoring platform 14 includes a first database 16, and the first database 16 stores data related to the active power distribution network.
The first database 16 may be a high-performance database management system, and all the operation data related to the active power distribution network is stored in the first database 16, that is, the data stored in the first database 16 is relatively extensive and comprehensive.
Fig. 4 is a schematic structural diagram of a monitoring system for an active power distribution network according to another exemplary embodiment of the present application. As shown in fig. 4, the model data module 11 includes a second database 17, and the second database 17 stores therein distributed photovoltaic data and power data.
And calling the power data from the second database 17, and performing data processing on the power data through a second preset model to obtain power model data. The number or kind of data stored in the second database 17 is smaller than the number or kind of data stored in the first database 16.
Fig. 5 is a schematic structural diagram of a monitoring system for an active power distribution network according to another exemplary embodiment of the present application. As shown in fig. 5, the operational data module 12 is communicatively coupled to a substation system 16, which includes a substation for generating electrical operational data.
The substation system 16 may be a D5000 source end system. The substation system 16 transmits the electrical operating data to the operating data module 12.
In an embodiment, the electric power operation data may include an active distribution network power uploading rate, wherein the active distribution network power uploading rate is calculated according to the number of active distribution network line power uploading in the target area and the total number of active distribution network lines in the target area, and the active distribution network power uploading rate represents the power of the surplus electric power of the active distribution network transmitted to the substation.
And the calculation formula of the power transmission rate of the active power distribution network is equal to the number of transmission lines of the power of the active power distribution network in the target area divided by the total number of the active power distribution network lines in the target area. The method can be used for displaying the voltage distribution grades (110kV/35kV/10kV) of three-dimensional 220kV power supply areas (only 110kV lines are counted in the early stage, and the low voltage grade is not counted for the moment), counties and whole networks on a regulation cloud interface.
In an embodiment, the electric power operation data includes an upward transmission rate of main power of the active power distribution network, wherein the operation data module calculates the upward transmission rate of main power of the active power distribution network according to the number of the main transformers of the transformer substation corresponding to the surplus power sent by the distributed photovoltaic in the target area and the total number of the main transformers of the transformer substation in the target area.
The upward power transmission rate of the main transformers of the active power distribution network is equal to the number of the main transformers of the transformer substation corresponding to the distributed photovoltaic transmission residual power in the target area divided by the total number of the main transformers of the transformer substation in the target area.
In an embodiment, the power operation data includes an overload safety margin of the active power distribution network, wherein the operation data module calculates the overload safety margin of the active power distribution network according to an actual current of the active power distribution network line and an allowable load flow of the active power distribution network line.
The active power distribution network line overload safety margin calculation formula is as follows:
Overload safety margin eta of single line line The evaluation is carried out in three states of 'normal', 'alarm' and 'emergency'.
Table 1 single line overload safety margin evaluation table
| Status of state | Is normal and normal | Alarm system | Emergency system |
| η line | [20％,100％] | [0％，20％) | ＜0％ |
| Colour(s) | Green colour | Orange colour | Red colour |
Full network line overload safety margin combination
And
evaluation was carried out.
Table 2220/110/35 kV line overload safety margin evaluation table
Table 310 kV line overload safety margin evaluation table
In an embodiment, the electric power operation data includes an overload safety margin of a main transformer of the active power distribution network, wherein the operation data module calculates the overload safety margin of the main transformer of the active power distribution network according to actual current of a high-voltage side and/or a medium-voltage side of the main transformer of the active power distribution network and rated current of the high-voltage side or the medium-voltage side of the main transformer of the active power distribution network.
The calculation formula of the overload safety margin of the main transformer of the active power distribution network comprises the following steps:
wherein, I real For the actual current, I, on the high-and/or medium-voltage side of the main transformer of an active distribution network n The rated current is the rated current of the high-voltage side and/or the medium-voltage side of a main transformer of the active power distribution network. And selecting a calculation result smaller than or equal to a preset result threshold value. I.e. to choose the smaller value of the safety margin.
Single main transformer with safety margin eta transf The evaluation is carried out in three states of 'normal', 'alarm' and 'emergency'.
Table 4 overload safety margin evaluation table for single main transformer of active power distribution network
| Status of state | Is normal | Alarm system | Emergency use |
| η transf | [20％,100％] | [0％，20％) | ＜0％ |
| Colour(s) | Green colour | Orange colour | Red colour |
Full-network main transformer overload safety margin combination
And
evaluation was carried out.
TABLE 5 evaluation chart for overload safety margin of full-network main transformer
In one embodiment, the electric power operation data includes a preset number of main transformer overload safety margins in the active power distribution network, wherein the preset number of main transformer overload safety margins in the active power distribution network are calculated according to the actual current of the high-voltage side and/or the medium-voltage side of the main transformer and the rated current of the high-voltage side and/or the medium-voltage side of the main transformer.
The preset number may be N-1, where N is the number of main transformers in the active power distribution network. And then selecting the main transformer overload safety margin of which the numerical value is smaller than a preset numerical value threshold value in the main transformer overload safety margin.
Overload safety margin eta of N-1 main transformer transf Is divided into "And evaluating the three states of normal, alarm and emergency.
TABLE 6 overload safety margin evaluation chart of N-1 main transformer
| Status of state | Is normal | Alarm system | Emergency system |
| η transf | [20％,100％] | [0％，20％) | ＜0％ |
| Colour(s) | Green colour | Orange colour | Red colour |
In one embodiment, the power operation data comprises a single bus voltage safety level, wherein the operation data module calculates the single bus voltage safety level according to a maximum voltage value of the single bus of the active power distribution network, a minimum voltage value of the single bus of the active power distribution network and an actual voltage of the bus of the active power distribution network.
The single bus voltage safety level calculation formula is as follows:
wherein, V max Is the maximum voltage of a single bus, V min The minimum value of the voltage of the single bus is V, and the actual voltage of the single bus is V.
Single bus voltage safety level eta V The system is divided into three states of 'normal', 'warning' and 'emergency'.
Table 7 single bus voltage safety level evaluation table
Full-network bus voltage safety horizontal combination
And
evaluation was carried out.
Table 8 evaluation table for bus voltage safety level of whole network
In an embodiment, the electric power operation data includes a single bus voltage fluctuation level, wherein the operation data module calculates the single bus voltage fluctuation level according to a first voltage value corresponding to the first time point, a second voltage value corresponding to the second time point and the target standard voltage, and the first time point is greater than the second time point.
The calculation formula of the voltage fluctuation level of the single bus is as follows:
wherein Δ U is the difference between two extreme voltages (first voltage value corresponding to the first time point-corresponding to the second time point)Second voltage value) of U n Is the system nominal voltage (target standard voltage).
The voltage fluctuation level of a single bus is calculated, and the voltage fluctuation times N in the period (the photovoltaic output time interval is 06:00-20:00 each day) V And evaluating the fluctuation level of the bus voltage, and dividing the fluctuation level into three states of 'normal', 'warning' and 'emergency'.
Table 9 single bus voltage fluctuation level evaluation table
| Status of state | Is normal | Alarm system | Emergency system |
| N V | N V ≤3 | N V ∈[4,6] | N V >6 |
| Colour(s) | Green colour | Orange colour | Red colour |
Full grid bus voltage fluctuation level, combining
And
evaluation was carried out.
Table 10 evaluation table for voltage fluctuation level of whole network bus
In an embodiment, the power operation data includes an active distribution network line source load level (active distribution network line power-load level), wherein the operation data module sends the remaining power after work to the transformer substation according to the distributed photovoltaic on the day before the target day (active distribution network working day) and sends the target power to the distributed photovoltaic on the day before the target day, and the active distribution network line source load level is obtained through calculation.
The calculation formula of the source load level of the active power distribution network line comprises the following steps: eta line The power distribution method comprises the following steps that (the power transmission amount on the day before the operation day)/(the power transmission amount on the day before the operation day) x 100%, the operation day is the working day of an active power distribution network, the power transmission amount on the day indicates that the distributed photovoltaic transmits the residual power after working to a transformer substation, and the power transmission amount on the day indicates that the transformer substation transmits the target power to the distributed photovoltaic.
Single line source loading level eta line The evaluation is carried out in three states of high carbon, low carbon and near zero carbon.
Table 11 evaluation table for source load level of single line
Full network line source-borne horizontal combining
Evaluation was carried out.
Table 12 evaluation table for source load level of whole network line
In one embodiment, the power operation data includes an active power distribution network line feed amplitude equal to
η line For active distribution network lines, H is the time length of transmission, I real For the line to actually carry current, I n Allowing for ampacity for the line.
The previous day operating state of a single line was evaluated according to the following boundary conditions.
TABLE 13 evaluation chart of previous-day running state of single line
The alarm conditions of the safety limit sent by a single line are accumulated according to the month, and the safety limit sent by the line is evaluated.
Table 14 on-line safety limit evaluation table
| Status of state | Is normal and normal | Alarm system | Emergency use |
| N | other | N Alarm device >5 days | N Emergency use >2 days |
| Colour(s) | Green colour | Orange colour | Red colour |
Safety margin integration for transmission over full network lines
And with
Evaluation was carried out.
Table 15 safety limit evaluation table for whole network line
In one embodiment, the electric power operation data comprise the source load level of a single main transformer of the active power distribution network, and the operation data module calculates the source load level of the single main transformer of the active power distribution network according to the downward transmission load of the active power distribution network and the upward transmission load of the distributed photovoltaic.
Source load level eta of single main transformer transf The evaluation is carried out in three states of high carbon, low carbon and near zero carbon.
Table 16 source load level evaluation table for single main transformer
| Status of state | High carbon | Low carbon | Near zero carbon |
| η transf | [0,50％) | [50％，100％) | [100％，+∞) |
| Colour(s) | Red colour | Orange colour | Green colour |
Source load horizontal combination of whole-network main transformer
Evaluation was carried out.
TABLE 17 evaluation table for source load level of whole-network main transformer
In one embodiment, the power operation data includes a transmission safety amplitude on the active power distribution network line, and the operation data module calculates the transmission safety amplitude on the active power distribution network line according to the current actually sent to the substation by the line and the allowable overload flow of the line.
The calculation formula of the safety amplitude sent by the line of the active power distribution network is equal to the current actually sent by the line to the substation divided by the allowable overload flow of the line multiplied by 100%. Eta transf The calculation formula equal to the source load level of a single main transformer of the active power distribution network comprises the following steps: under-load transmission of active power distribution networkThe load/distributed photovoltaic load transmission is multiplied by 100%. Eta line For the upward delivery amplitude, H is the length of time for the distributed photovoltaic to be delivered to the substation, I real For the line to actually carry current, I n Allowing ampacity for the line.
The previous day operating state of a single line was evaluated according to the following boundary conditions. Wherein h is expressed as hours.
TABLE 18 previous day running state rating table for single line
The alarm conditions of the safety limit sent by a single line are accumulated according to the month, and the safety limit sent by the line is evaluated.
Table 19 on-line safety limit evaluation table
| Status of state | Is normal | Alarm system | Emergency system |
| N | other | N Alarm device >5 days | N Emergency use >2 days |
| Colour(s) | Green colour | Orange colour | Red colour |
Safety limit combination for transmission over network
And
evaluation was carried out.
Table 20 safety limit table for network
Fig. 6 is a schematic structural diagram of a monitoring system for an active power distribution network according to another exemplary embodiment of the present application. As shown in fig. 6, the operation data module 12 is in communication connection with the execution system 17, and the execution system 17 is configured to receive the scheduling management data generated after the active power distribution network executes the preset workflow. The execution system 17 may be an OMS system.
In an embodiment, the scheduling management data includes an active power distribution network live working level, wherein the active power distribution network live working level is obtained by calculation according to the active power distribution network live working instruction number and the active power distribution network working instruction total number, and the work ticket represents a work instruction.
The hot-line work level of the active power distribution network is equal to (the number of hot-line work tickets of the active power distribution network of the OMS system/the total number of the OMS work tickets of the active power distribution network) multiplied by 100%, wherein the number of the work tickets is work instruction data.
In an embodiment, the scheduling management data includes an active power distribution network time-staggered power failure operation level, wherein the operation data module calculates the active power distribution network time-staggered power failure operation level according to the number of night power failure operation tickets of the active power distribution network and the total number of the operation tickets of the active power distribution network, and the operation tickets represent operation instructions.
The level of the power failure operation of the active power distribution network in time error is equal to (the number of the night power failure operation tickets of the active power distribution network of the OMS system/the total number of the operation tickets of the active power distribution network of the OMS system) multiplied by 100%.
In an embodiment, the distributed photovoltaic power data includes a distributed photovoltaic centralized collection level, and the distributed photovoltaic centralized collection level is calculated by a photovoltaic data module according to the collected distributed photovoltaic installed capacity and the total distributed photovoltaic installed capacity.
In an embodiment, the distributed photovoltaic power data includes a distributed photovoltaic centralized control level equal to (distributed photovoltaic controllable installed capacity/distributed photovoltaic installed total capacity) x 100%.
The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.
Claims (10)
1. A monitoring system for an active power distribution network, comprising: the model data module is used for storing electric power model data; the operation data module is used for storing electric power operation data and scheduling management data; the power operation data comprise power of distributed photovoltaic power which is sent to a transformer substation in a reverse mode, and the scheduling management data comprise data generated when the active power distribution network executes a preset work flow; the photovoltaic data module is used for storing distributed photovoltaic power data and distributed model data; the distributed power data comprises power data of the distributed photovoltaic work, and the distributed model data represents data obtained by performing data processing on operation data of the distributed photovoltaic by a first preset model; and the monitoring platform is in communication connection with the model data module, the operation data module and the photovoltaic data module respectively and is used for displaying the power model data, the power operation data, the scheduling management data, the distributed photovoltaic model data and the distributed photovoltaic power data on a regulation and control cloud interface.
2. The monitoring system of claim 1, wherein the monitoring platform comprises a cluster module, the cluster module is in communication connection with the model data module, the operation data module, the photovoltaic data module, and the control cloud interface, respectively, and the cluster module is configured to combine the power model data, the scheduling management data, the distributed photovoltaic model data, the power operation data, and the distributed photovoltaic power data to obtain combined data.
3. The system of claim 1, wherein the monitoring platform comprises a first database, and the first database stores data related to the active power distribution network.
4. The active power distribution network monitoring system of claim 1, wherein the operational data module is communicatively coupled to a substation system, the substation system including the substation, the substation configured to generate the electrical operational data.
5. The active power distribution network monitoring system according to claim 4, wherein the power operation data comprises an active power distribution network power uploading rate, wherein the active power distribution network power uploading rate is calculated according to the number of active power distribution network line power uploading in a target area and the total number of active power distribution network lines in the target area, and the active power distribution network power uploading rate represents the power of the residual power of the active power distribution network transmitted to the substation.
6. The monitoring system of claim 4, wherein the power operation data comprises a single bus voltage safety level, and wherein the operation data module calculates the single bus voltage safety level according to a maximum voltage value of the single bus of the active power distribution network, a minimum voltage value of the single bus of the active power distribution network, and an actual voltage of the bus of the active power distribution network.
7. The system according to claim 1, wherein the operation data module is communicatively connected to an execution system, and the execution system is configured to receive the scheduling management data generated after the active power distribution network executes a preset workflow.
8. The active power distribution network monitoring system according to claim 7, wherein the scheduling management data includes an active power distribution network live working level, and wherein the operation data module calculates the active power distribution network live working level according to the active power distribution network live working instruction number and the active power distribution network working instruction total number.
9. The system according to claim 7, wherein the scheduling management data includes a blackout operation level of the active power distribution network at the time of the error, and wherein the operation data module calculates the blackout operation level of the active power distribution network at the time of the error according to the number of blackout operation instructions of the active power distribution network at night and the total number of operation instructions of the active power distribution network.
10. The monitoring system for the active power distribution network according to claim 1, wherein the distributed photovoltaic power data includes a distributed photovoltaic centralized collection level, and wherein the operation data module calculates the distributed photovoltaic centralized collection level according to the collected distributed photovoltaic installed capacity and the total distributed photovoltaic installed capacity.
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| CN116131258B (en) * | 2023-01-30 | 2023-09-19 | 国网河北省电力有限公司 | Multi-index data scheduling operation system and method for active power distribution network |
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