CN113703649A - Method and tool for adjusting tidal current output and load of simulation power grid - Google Patents
Method and tool for adjusting tidal current output and load of simulation power grid Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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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]
Abstract
The invention discloses a method and a tool for adjusting tidal current output and load of a simulation power grid, wherein the adjusting method comprises the following steps: step S1, receiving application number information, and acquiring a real-time or historical power flow data section of state estimation according to the application number information; step S2, calling a power flow output load adjusting tool interface of the power system application software PAS, and triggering output load adjustment; step S3, according to the selected type, searching a single generator or a power plant, determining the generator to be regulated, and setting the output of the generator; step S4, retrieving and determining the transformer substation to be adjusted, and setting the load of the transformer substation; and step S5, calling a load flow calculation tool to perform load flow calculation according to the set generator output adjustment quantity and the set transformer substation load adjustment quantity, and writing the calculation result into a hierarchical library and a real-time library. The method greatly shortens the time for the analyst to adjust the output force and the load of the tidal current section, and improves the convergence of the tidal current analysis.
Description
Technical Field
The invention belongs to the technical field of power system dispatching automation, and particularly relates to a method and a tool for adjusting power flow output and load of a simulation power grid.
Background
With the continuous development of the smart power grid, the requirements on the safety and reliability of the power grid operation are continuously improved. The power flow analysis is used as the basis of stable calculation and fault analysis of the power system, is suitable for aspects such as a power grid planning stage, operation mode adjustment, maintenance and expected accidents, and is particularly important for continuous improvement and development of functions. When the power flow analysis is carried out on the power grid, the initial section is adjusted reasonably and quickly, and the method is the basis of the decision accuracy and the high efficiency of the power grid operation mode.
In order to meet the requirement of the level improvement of the power grid automation, a unified interface adjustment function on the output and the load of the power flow section in the power grid power flow analysis process needs to be realized urgently.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method and a tool for adjusting the power flow output and load of a simulation power grid so as to realize a unified interface adjustment function on the output and load of a power flow section in the power flow analysis process of the power grid.
In order to solve the technical problem, the invention provides a method for adjusting tidal current output and load of a simulation power grid, which comprises the following steps:
step S1, receiving application number information, and acquiring a real-time or historical power flow data section of state estimation according to the application number information;
step S2, calling a power flow output load adjusting tool interface of the power system application software PAS, and triggering output load adjustment;
step S3, according to the selected type, searching a single generator or a power plant, determining the generator to be regulated, and setting the output of the generator;
step S4, retrieving and determining the transformer substation to be adjusted, and setting the load of the transformer substation;
and step S5, calling a load flow calculation tool to perform load flow calculation according to the set generator output adjustment quantity and the set transformer substation load adjustment quantity, and writing the calculation result into a hierarchical library and a real-time library.
Further, in the step S1, the application number information includes a dispatcher load flow application or a research sequence application based on the OCS.
Further, in step S2, the power flow output load adjustment tool interface is a set Qt interface.
Further, the step S3 specifically includes:
firstly checking 'generator adjustment' on the Qt interface, selecting 'station' on a 'selection type' pull-down frame, then clicking a 'selection' button, carrying out station retrieval in a pop-up frame, and displaying the current active value and the current reactive value of the whole power plant on the interface;
and then selecting the 'adjustment of the total active output', selecting an adjustment mode and a distribution mode, inputting an adjustment quantity to finish the setting of the active output, selecting the 'adjustment of the total reactive output', selecting the adjustment mode, and inputting the adjustment quantity to finish the setting of the total reactive output.
Further, the input adjustment mode information specifically includes: selecting input new values or increasing and decreasing according to current values according to requirements; the input distribution mode information is specifically: selecting average distribution or distributing according to the current capacity according to the requirement; the input adjustment amount is specifically an adjustment amount input according to a requirement.
Further, clicking a right button at the name of the power plant to display detailed information, and popping up current power values of all units of the power plant.
Further, the step S4 specifically includes:
selecting 'load adjustment' and 'selection type' as 'station', clicking 'selection' button to retrieve and determine; the active and reactive setting of the load is the same as the active and reactive setting of the output of the generator.
Further, the step S5 specifically includes:
after the output of the generator and the load of the transformer substation are set, an application button is clicked, a background calls a load flow calculation tool, load flow calculation is carried out according to the adjustment amount, the calculation result is written into a hierarchical library and a real-time library, a message frame of success adjustment of the power generation load is finally returned, and the adjusted active value and the adjusted inactive value of the corresponding power plant or the corresponding transformer substation are displayed on a plant diagram.
The invention also provides a tool for adjusting the power flow output and load of the simulation power grid, which is used for implementing the method, and the tool for adjusting the power flow output and load of the simulation power grid comprises the following steps:
the adjustment information area module is used for acquiring and displaying station measurement information in the OCS through the data interface; and
and the adjustment control area module is used for inputting an adjusting mode, a distribution mode and an adjusting quantity, setting the output of the generator and the load of the transformer substation, calling a load flow calculation tool to perform load flow calculation according to the set output adjusting quantity of the generator and the load adjusting quantity of the transformer substation, and writing the calculation result into the hierarchical library and the real-time library.
Further, the generator output of the tidal current section and the load of the transformer substation are uniformly adjusted on the Qt interface.
The implementation of the invention has the following beneficial effects: the invention provides a unified interface tool for output load regulation, which supports unit and load layered regulation, active regulation supports a set new value or an increase and decrease quantity mode, reactive regulation supports a set new value, an increase and decrease quantity or a constant power factor mode, and selection of various power distribution modes, and supports statistical check of unit and load power regulation quantities; the time for the analyst to adjust the output and the load of the tidal current section is greatly shortened, the labor intensity of the analyst is reduced, and the convergence of the tidal current analysis is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for adjusting power flow output and load of a simulation power grid according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of toolbar application selection according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a right-key menu call function interface according to an embodiment of the present invention.
Fig. 4 is a schematic view of a tidal current output load adjustment tool interface according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a generator output adjustment interface and detailed device information according to an embodiment of the present invention.
FIG. 6 is a schematic view of a load adjustment interface according to an embodiment of the present invention.
Fig. 7 is a schematic diagram of an interface with completed adjustment according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments in which the invention may be practiced.
Referring to fig. 1, an embodiment of the present invention provides a method for adjusting a tidal current output and a load of a simulated power grid, including:
step S1, receiving application number information, and acquiring a real-time or historical power flow data section of state estimation according to the application number information;
step S2, calling a power flow output load adjusting tool interface of the power system application software PAS, and triggering output load adjustment;
step S3, according to the selected type, searching a single generator or a power plant, determining the generator to be regulated, and setting the output of the generator;
step S4, retrieving and determining the transformer substation to be adjusted, and setting the load of the transformer substation;
and step S5, calling a load flow calculation tool to perform load flow calculation according to the set generator output adjustment quantity and the set transformer substation load adjustment quantity, and writing the calculation result into a hierarchical library and a real-time library.
Specifically, in step S1, application number information is received, a dispatcher power flow application or a research sequence application is selected through a toolbar, the application number information is transmitted, as an example, the dispatcher power flow application is 201200, the research sequence application is 202900, and then a real-time or historical power flow data section of the state estimation is obtained. 1. And (4) application selection. And acquiring data of the power flow section of the power grid on the basis of dispatcher power flow application or research sequence application of the OCS (online charging system) based on the power grid operation control system. The embodiment of the invention supports simultaneous use of multiple users, and the multiple users can simultaneously operate under different applications without mutual influence.
In step S2, a power system Application software pas (power Application software) power flow output load adjustment tool interface is called, and the Qt interface of the embodiment may be directly called by the right-click menu (Qt is a cross-platform C + + graphical user interface Application program framework).
In step S3, a plant station or a generator is first selected according to the "selection type", a single generator or a plant is retrieved according to the selection type, an adjustment object is determined, and the output of the generator is set. Specifically, the 'generator adjustment' is selected on the Qt interface, the 'station' is selected in the 'selection type' drop-down frame, and then the 'selection' button is clicked, so that the station retrieval can be performed in the pop-up frame, the interface can display the current active value, the passive value and the like of the whole power plant, the function of viewing the details of the station is also added in the embodiment, the detailed information can be displayed on the name right key of the power plant, and the current power values of all the units of the power plant can be popped up. And then selecting the 'adjustment of the total active output', selecting an adjustment mode and a distribution mode, inputting an adjustment quantity to finish the setting of the active output, selecting the 'adjustment of the total reactive output', selecting the adjustment mode, and inputting the adjustment quantity to finish the setting of the total reactive output. The input adjustment mode information is specifically: selecting input new values or increasing and decreasing according to current values according to requirements; the input distribution mode information is specifically: selecting average distribution or distributing according to the current capacity according to the requirement; the input adjustment amount is specifically an adjustment amount input according to a requirement.
Step S4 sets the load of the substation. Specifically, "load adjustment" is selected on the Qt interface, and "plant station" is selected as the "selection type", and the "selection" button is clicked to retrieve and determine, and the active and reactive settings of the load are the same as the active and reactive settings of the output of the generator, which is not described herein again.
Step S5 completes the setting and determination. After the output of the generator and the load of the transformer substation are set, an application button is clicked, a load flow calculation tool is called in a background, load flow calculation is carried out according to the adjustment amount, the calculation result is written into a hierarchical library and a real-time library, a message frame of success adjustment of the power generation load is finally returned, and the adjusted active value and the adjusted inactive value of the corresponding power plant or the transformer substation can be seen on a plant diagram. Therefore, the output load adjusting process of the whole power flow is completed.
The following describes a specific implementation manner of the present embodiment by taking an example in which a scheduling automation system selects one power plant (mam bay power plant) and one substation (joy station) to perform output power and load regulation.
Assuming that the current obtained power flow section can not meet the research requirement, the active power output of the power flow of the whole power grid needs to be increased by 50MW, and meanwhile, the load is also increased by 50 MW.
1. An application is selected. As shown in FIG. 2, an application is selected as "dispatcher trend" at the toolbar, such as based on the dispatch automation system.
2. Calling a PAS tidal current output load adjusting tool, referring to fig. 3, selecting 'output load adjustment' in a right key menu bar, and calling a tidal current output load adjusting tool interface as shown in fig. 4.
3. And setting the output of the generator of the power plant. As shown in fig. 5, the generator adjustment is selected, the factory station is selected in the pull-down box of the selection type, and then the selection button is clicked, so that the factory station can be retrieved in the pop-up box, the mam bay power plant is selected and determined, the interface can display the current active value, the current passive value and the like of the whole power plant, a function of viewing details of the factory station is added, the detailed information can be displayed in the name right key of the power plant, and the current power values of all units of the power plant can be popped up. And after the 'total active output adjustment' is selected, the adjustment mode and the distribution mode are selected, the adjustment quantity is input, namely the setting of the active output is completed, and the 'total reactive output adjustment' is selected, the adjustment mode is selected, the adjustment quantity is input, and the setting of the total reactive output is completed.
4. The load of the substation is set. As shown in fig. 6, the "load adjustment" is selected, the "station" is selected as the "selection type", the "selection" button is clicked to retrieve the happy station and determine the happy station, the active and reactive setting of the load is the same as the active and reactive setting of the generator output, and details are not repeated.
5. The setting is completed and determined. After the output and the load are set, the application button is clicked, the load flow calculation tool is called by the background to perform load flow calculation according to the adjustment amount, the calculation result is written into the hierarchical library and the real-time library, and finally, a message popup box that the power generation load is successfully adjusted is returned, as shown in fig. 7. And the adjusted active value and the adjusted inactive value of the corresponding power plant or substation can be seen on the plant diagram. Thereby completing the output load adjusting process of the whole tide.
The second embodiment of the present invention further provides a tool for adjusting power flow output and load of a simulated power grid, which is used for implementing the method according to the first embodiment of the present invention, and the tool for adjusting power flow output and load of a simulated power grid includes:
the adjustment information area module is used for acquiring and displaying station measurement information in the OCS through the data interface; and
and the adjustment control area module is used for inputting an adjusting mode, a distribution mode and an adjusting quantity, setting the output of the generator and the load of the transformer substation, calling a load flow calculation tool to perform load flow calculation according to the set output adjusting quantity of the generator and the load adjusting quantity of the transformer substation, and writing the calculation result into the hierarchical library and the real-time library.
Further, the generator output of the tidal current section and the load of the transformer substation are uniformly adjusted on the Qt interface.
As can be seen from the above description, the method of the present invention has the following advantages:
(1) the power regulation under multiple applications is supported, the function can be used under the current dispatcher trend application and research sequence application, and multiple persons can use the function simultaneously without mutual interference.
(2) The right key operation is carried out on the corresponding station diagram needing to adjust the output or load on the traditional OCS, but the tool of the invention is based on the data interface and the Qt technology of the OCS, and the interface tool running under the thought operating system can be directly searched and adjusted through the tool, thereby greatly reducing the operation of switching the station diagram and being more intuitive and accurate.
(3) The method has the advantages that the power flow convergence is higher, the power flow is easy to be not converged under the condition that the power of the generator output and the load are unbalanced, the power unbalance can be calculated according to the data before and after adjustment, the power unbalance is displayed, and a user can correct the power unbalance according to the condition, so that the power flow convergence is improved.
(4) The power can be adjusted by setting the increase and decrease amount or the new value of the current power in various setting modes of the power, and compared with the traditional setting mode, the power adjusting method is more flexible and reasonable.
(5) The power distribution mode provides a power distribution mode of average distribution or distribution according to the current power when the power of the whole power plant or a single transformer substation is regulated, so that a power flow analyzer can select the power flow according to the requirement.
(6) And the statistical checking of the adjustment amount enables researchers to visually see the statistical information of the adjustment process through an interface, wherein the statistical information comprises the active value, the passive value and the like before and after adjustment.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (10)
1. A method for adjusting tidal current output and load of a simulation power grid is characterized by comprising the following steps:
step S1, receiving application number information, and acquiring a real-time or historical power flow data section of state estimation according to the application number information;
step S2, calling a power flow output load adjusting tool interface of the power system application software PAS, and triggering output load adjustment;
step S3, according to the selected type, searching a single generator or a power plant, determining the generator to be regulated, and setting the output of the generator;
step S4, retrieving and determining the transformer substation to be adjusted, and setting the load of the transformer substation;
and step S5, calling a load flow calculation tool to perform load flow calculation according to the set generator output adjustment quantity and the set transformer substation load adjustment quantity, and writing the calculation result into a hierarchical library and a real-time library.
2. The method according to claim 1, wherein in the step S1, the application number information comprises a dispatcher load flow application or a research sequence application based on an OCS.
3. The method according to claim 1, wherein in step S2, the tidal current output load adjustment tool interface is a set Qt interface.
4. The method according to claim 3, wherein the step S3 specifically includes:
firstly checking 'generator adjustment' on the Qt interface, selecting 'station' on a 'selection type' pull-down frame, then clicking a 'selection' button, carrying out station retrieval in a pop-up frame, and displaying the current active value and the current reactive value of the whole power plant on the interface;
and then selecting the 'adjustment of the total active output', selecting an adjustment mode and a distribution mode, inputting an adjustment quantity to finish the setting of the active output, selecting the 'adjustment of the total reactive output', selecting the adjustment mode, and inputting the adjustment quantity to finish the setting of the total reactive output.
5. The method according to claim 4, wherein the input adjustment mode information is specifically: selecting input new values or increasing and decreasing according to current values according to requirements; the input distribution mode information is specifically: selecting average distribution or distributing according to the current capacity according to the requirement; the input adjustment amount is specifically an adjustment amount input according to a requirement.
6. The method of claim 4, wherein clicking a right button at the name of the plant displays the detailed information and pops up the current power values of all units of the plant.
7. The method according to claim 3, wherein the step S4 specifically includes:
selecting 'load adjustment' and 'selection type' as 'station', clicking 'selection' button to retrieve and determine; the active and reactive setting of the load is the same as the active and reactive setting of the output of the generator.
8. The method according to claim 1, wherein the step S5 specifically includes:
after the output of the generator and the load of the transformer substation are set, an application button is clicked, a background calls a load flow calculation tool, load flow calculation is carried out according to the adjustment amount, the calculation result is written into a hierarchical library and a real-time library, a message frame of success adjustment of the power generation load is finally returned, and the adjusted active value and the adjusted inactive value of the corresponding power plant or the corresponding transformer substation are displayed on a plant diagram.
9. A tool for simulating grid power flow output and load adjustment for carrying out the method according to any one of claims 1 to 8, wherein the tool for simulating grid power flow output and load adjustment comprises:
the adjustment information area module is used for acquiring and displaying station measurement information in the OCS through the data interface; and
and the adjustment control area module is used for inputting an adjusting mode, a distribution mode and an adjusting quantity, setting the output of the generator and the load of the transformer substation, calling a load flow calculation tool to perform load flow calculation according to the set output adjusting quantity of the generator and the load adjusting quantity of the transformer substation, and writing the calculation result into the hierarchical library and the real-time library.
10. The adjustment tool according to claim 9, wherein generator output and substation loads of the power flow profile are adjusted uniformly at the Qt interface.
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