CN103793795A - Hydropower station hydropower dispatching plan generation and simulation method based on GIS technology - Google Patents
Hydropower station hydropower dispatching plan generation and simulation method based on GIS technology Download PDFInfo
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- CN103793795A CN103793795A CN201410070846.2A CN201410070846A CN103793795A CN 103793795 A CN103793795 A CN 103793795A CN 201410070846 A CN201410070846 A CN 201410070846A CN 103793795 A CN103793795 A CN 103793795A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Abstract
The invention relates to a hydropower station hydropower dispatching plan generation and simulation method based on the GIS technology. The hydropower station hydropower dispatching plan generation and simulation method is characterized by including the steps of firstly, setting up a local terrain spatial database based on a GIS platform; secondly, forecasting a reservoir inflow/outflow amount-time curve based on the expected generating capacity of an upstream hydropower station; thirdly, adjusting the forecasted inflow/outflow amount-time curve based on real-time information such as the water level, the rain condition and the flow and through combination with meteorological and hydrological forecast information and spatial information stored in the first step; fourthly, generating a dispatching plan through the forecasted reservoir inflow/outflow amount-time curve, through combination with hydropower station working condition data and hydropower station dispatching rules, and according to the preset dispatching plan generation model in the system; fifthly, generating the optimal dispatching plan. By means of the hydropower station hydropower dispatching plan generation and simulation method, benefits of different dispatching plans are evaluated for workers, and the method plays a role in assisting the management layer in making a decision.
Description
Technical field
The present invention relates to Hydraulic and Hydro-Power Engineering field, particularly a kind of power station water power operation plan based on GIS technology generates and emulation mode.
Background technology
Power station operation plan is to guarantee under the safe and reliable prerequisite in power station, give full play to the economic benefit of limited resources, specifically refer in the situation that reservoir inflow and water use changes, according to the mission requirements of runoff characteristic and reservoir, there are a kind of technology and the measure of object, in a planned way overall arrangement reservoir filling and flood, flood retention and flood discharge, flood control and Xing Li, the method of operation in reasonable arrangement power station and the water level of reservoir and water regulation, make hydropower station obtain maximum economic benefit.At present, middle small watershed runoff formula GROUP OF HYDROPOWER STATIONS is utilized graph of reservoir operation more, by virtue of experience dispatches.
Optimized Scheduling of Hydroelectric Power process is a complicated systems engineering, involve the various aspects of whole electric power station operation and management, in management and running decision process, often need to relate to a large amount of data and graphical information, as the hydrology in basin, landform, hydraulic structure etc., between its inner each ingredient, connect each other and restriction mutually, relation is intricate, often be difficult to describe with simple text chart or mathematical model, and augmenting of information causes the change of decision-making often to occur, traditional operation plan simulation is many must adopt curve, form is shown result of calculation and calculating process, whole process is not directly perceived, this makes decision-making management person be difficult to different scheduling schemes to optimize intuitively alternative.
Middle small watershed runoff formula GROUP OF HYDROPOWER STATIONS is by virtue of experience dispatched, conventionally using graph of reservoir operation as the instrument that instructs reservoir traffic control, graph of reservoir operation is according to historical hydrologic data, selecting representational Typical Year is foundation, take design dependability with guarantee to exert oneself to draft as basis, but it can not adapt to the variation that objective circumstances occur along with time duration, easily make dispatcher's error in judgement and cause water can waste.For example, as run into water when very rich, dare not surmount the indicated output of scheduling graph in flood season, strengthen and exert oneself in time, what often easy generation was concentrated abandons water in a large number, and water yield utilization factor is reduced, loss electric energy, water resource is not fully utilized, and can not adapt to current energy-saving and emission-reduction, water saving additional issue requirement; In addition, operation plan is greatly mainly with the form displaying of form, relatively abstract, not directly perceived, is unfavorable for the assessment to operation plan.
Summary of the invention
The object of this invention is to provide a kind of power station water power operation plan based on GIS technology and generate and emulation mode, the method is that staff assesses different operation plan benefits, for administration and supervision authorities decision-making helps out.
The present invention adopts following scheme to realize: a kind of power station water power operation plan based on GIS technology generates and emulation mode, it is characterized in that comprising the following steps:
Step S01: based on gis platform, build local landform spatial database;
Step S02: estimate generated energy based on upper water power station, prediction reservoir/water-break amount-time curve;
Step S03: based on real time water level, rain condition, flow information, in conjunction with the spatial information of storing in meteorology, hydrologic forecast information and described step S01, come/water-break amount-time prediction curve is adjusted;
Step S04: utilize reservoir/water-break amount-time prediction curve, in conjunction with power station Working state data and power station scheduling rule, according to the operation plan generation model being set in advance in system, generate operation plan;
Step S05: the operation plan generating in step S04 is calculated and simulation analysis the operating mode in second day power station, and obtain optimal scheduling plan; Described calculating is for the plan phase
interior power station gross generation
or total power benefit
carry out computational analysis, by the change to constraint condition, target is
or
can obtain maximal value; Described emulation is utilize gis platform by the reproduction of the variation image of flow or present in advance the enforcement of each power station operation plan.
In an embodiment of the present invention, also comprise optimum operation plan is issued by web system.
In an embodiment of the present invention, the implementation of described step S01 comprises the system by gis, spatial analysis is carried out in local landform space, and spatial analysis mainly comprises that the volume of reservoir length, area, girth, volume calculating, channel length, the degree of depth, average cross-section, corresponding section calculates; Dissecing the transversal section that obtains any section based on landform, analyze terrain slope, slope aspect, to the river channel cross section data number warehouse-in extracting, is the downstream river course advance of freshet model parameter that supplies a model.
In an embodiment of the present invention, described power station gross generation
, total power benefit
maximum value calculation formula as follows:
In formula:
for
power station gross capability (
);
for
period electricity price (unit/kWh);
for the plan phase
the interior power station income (unit) of always generating electricity, this index can reflect the difference that time-of-use tariffs cause, it is applicable to the different power station of day part electric weight price in the plan phase;
for power station gross generation (kWh) in plan phase T, this index reflects the exploitation efficiency to water resource.
In an embodiment of the present invention, described power station gross generation
or total power benefit
be that many covers operation plan is carried out to performance analysis, computing formula is as follows:
In formula: n represents the quantity of GROUP OF HYDROPOWER STATIONS in basin, all the other parameters are with the parameter in the operation plan performance analysis of single power station, and system is according to the operation plan generating, by all power stations of watershed in plan phase T
or
calculate; System, by the technology to many covers operation plan, obtains respectively
or
peaked operation plan.
In an embodiment of the present invention, described method also comprises recurrence and the preview of operation plan, by gis platform information Overlapping display, before optimal scheduling plan is issued, by first previewing on gis platform, the result of calculation of access power station scheduling model, scheduling scheme is carried out to analog simulation, check that whether operation plan is reasonable, and adjust according to preview result, guarantee the rationality of operation plan.
In an embodiment of the present invention, described emulation comprises: dynamic simulative emulation, and this dynamic simulative emulation comprises floodgate opening process and state, dam sluicing fluidised form and downstream river course flow-shape is carried out to analog simulation; Described floodgate opening process and state are reservoir dam water levels of upstream and downstream, the discharge relations arranging according to user, by regulating the Lift of sluice, in analog simulation environment, sluice is opened, fixed and organize into groups in groups or freely, all open according to single hole, the various operating modes of power station scheduling are carried out to analog simulation; Described dam sluicing fluidised form and downstream river course flow-shape are by build segmented layer on gis map, in segmented layer, get unit length, and set the distance that this unit length represents in actual geographic position, the distance between adjacent reservoir in water system is carried out to segmentation according to unit length.
In an embodiment of the present invention, described GIS platform arranges refresh time module is set, and it accepts the refresh time that user provides, i.e. the time of the river evolution of system representative in one second; Simultaneously platform carries out classification to flow, by different colors for representing different flows, in system according to the hydrological environment in basin, be provided with the relation curve of flow and flow velocity, based on different flow, obtain flow velocity by curve, in conjunction with refresh time, can obtain the distance of river evolution; Evolution distance in river is compared with segmentation scales, obtains the segments that will light refresh time domestic demand, according to the color of this flow, lights corresponding segmentation number.
The present invention has not only provided the production method of optimal scheduling plan, and based on gis system, operation plan is carried out to emulation displaying and simulation analysis and calculate, can be figuratively bright or prove the ruuning situation of whole operation plan scheme.System is by playing up in chronological order simulated scenario, by operation plan and basin generally change figure combine, different operation plans (comprising present situation operation plan and all previous operation plan) can be simulated on this platform to the different operation plan emulation of real time modelling or Historical Reenactment.Simultaneously also can be used as a kind of analysis means, in conjunction with the hydrological environment information in gis system, analyze the connecting each other of operation plan scheme key components, the situation etc. that affects each other; Emulation mode based on gis can also be gone comprehensive analysis as design criterion, be evaluated the decision-making measure of advising, assess different scheduling schemes, it under the prerequisite of not destroying, do not affect original system and scheme macro-level policy-making direction, possessed safety, can be experimental, fast and the advantage that can carry out multi-scheme selection, make staff to scheduling planning process have more intuitively, more deep understanding and understanding, for staff assesses different operation plan benefits, contribute to increase work efficiency, rationally utilize waterpower resourses.
Accompanying drawing explanation
Fig. 1 is the inventive method schematic flow sheet.
Fig. 2 is the function structure diagram of system of the present invention.
Fig. 3 is come/water-break amount-time prediction curve synoptic diagram of power house that the present invention is applied in Ting Jiang basin, Fujian Province.
Fig. 4 is to the emulation schematic diagram along spit of fland Jiang Liuxiang on gis map.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
As shown in Figure 1, the present embodiment provides a kind of power station water power operation plan based on GIS technology to generate and emulation mode, it is characterized in that comprising the following steps:
Step S01: based on gis platform, build local landform spatial database;
Step S02: estimate generated energy based on upper water power station, prediction reservoir/water-break amount-time curve;
Step S03: based on real time water level, rain condition, flow information, in conjunction with the spatial information of storing in meteorology, hydrologic forecast information and described step S01, come/water-break amount-time prediction curve is adjusted;
Step S04: utilize reservoir/water-break amount-time prediction curve, in conjunction with power station Working state data and power station scheduling rule, according to the operation plan generation model being set in advance in system, generate operation plan;
Step S05: the operation plan generating in step S04 is calculated and simulation analysis the operating mode in second day power station, and obtain optimal scheduling plan; Described calculating is for the plan phase
interior power station gross generation
or total power benefit
carry out computational analysis, by the change to constraint condition, target is
or
can obtain maximal value; Described emulation is utilize gis platform by the reproduction of the variation image of flow or present in advance the enforcement of each power station operation plan.
The present invention mainly adopts the technology such as virtual reality, data base administration, satellite remote sensing (RS), image processing, two, three-dimensional modeling, set up research section two, 3-dimensional digital platform, by data-driven two, Three-Dimensional Dynamic current, performance river course and ditch water flow process, integrated culverts and water gates control model is set up the virtual environment corresponding with actual environment, operation plan is carried out to dynamic simulation, and the operation plan achievement of emulation is shown on GIS platform, as shown in Figure 2.
Concrete step is as follows:
1,, based on gis system, build local landform spatial database
Mainly comprise the system by gis, spatial analysis is carried out in local landform space, spatial analysis mainly comprises the volume calculating of reservoir length, area, girth, volume calculating, channel length, the degree of depth, average cross-section, corresponding section etc.Dissecing the transversal section that obtains any section based on landform, analyze terrain slope, slope aspect, to the river channel cross section data number warehouse-in extracting, is the downstream river course advance of freshet model parameter that supplies a model.
2, estimate generated energy based on upper water power station, prediction carrys out (moving back) water yield-time curve.
For plant without storage, the generation of operation plan, based on to the prediction that carrys out (moving back) water yield, carrys out (moving back) water yield relevant with local pondages at different levels, and is subject to power station working condition impact.Because power station is in operational excellence situation, its waterdrainage amount and its generated energy have certain relation, the waterdrainage amount in upper water power station directly affects the water yield of coming in tail water power station, therefore by obtaining upper water power station second day plan work information, what can obtain second day tail water power station roughly carrys out the water yield-time prediction curve.And analysis to tail water power station second day plan work information can obtain second day tail water power station roughly water-break amount-time prediction curve.
For integrated dispatching system, can integration construct dispatching center,, by accepting Nei Ge power station, the basin expectation generated energy of next day, predict (moving back) water yield-time prediction curve that comes in each power station at center.
As shown in Figure 3, take the power house in Ting Jiang basin, Fujian Province as example, suppose the power station that brings into operation, 7 left and right in the morning, local basin, evening, 12 end operations, moved 17 hours, therefore altogether, each reservoir needs there is the operation plan of second day, guarantees the smooth running of reservoir.For this reason, need first each reservoir (moving back) regimen condition of coming of second day to be analyzed, obtain accordingly (moving back) water yield-time prediction curve.Take adjacent U.S. west and Liang Ge power station, Tingzhou as example, the generated energy in U.S. west is by relevant with its waterdrainage amount, and its waterdrainage amount has directly determined the water-break amount in U.S. west, the waterdrainage amount in U.S. west is along with river course flows to Tingzhou, downstream simultaneously, and it has formed the water yield of coming in power station, Tingzhou.Therefore, by analyzing the Mei Xi power station expectation generated energy of second day, can be according to its unit information, and within second day, estimate can obtain the work information of open unit comparatively rough Mei Xi power station water-break amount-time prediction curve and power station, Tingzhou and carry out the water yield-time prediction curve.
3,, based on real time water level, rain condition, flow information, adjust carrying out (moving back) water yield-time prediction curve in conjunction with meteorology, hydrologic forecast information and spatial information.
Because current regimen, rain condition and flow information are relevant to regimen, the flow of next day, and the meteorology of next day, hydrographic information equally also can exert an influence to reservoir level, flow, therefore, on the one hand by building regimen, rain condition, flow website, water level, rainfall, flow situation in real-time collecting basin; On the other hand, share forecast information by the access hydrology, meteorological departments, as weather forecast, hydrologic forecast information etc., adjust carrying out (moving back) water yield-time prediction curve.
Carry out the same impact that is subject to arrival (moving back) water water velocity of relation of (moving back) water yield and time, can learn according to flow and velocity formula, the sectional area in itself and river course is relevant.Therefore need local terrain environment to investigate, by the investigation to local hydrological environment, and utilize the local landform spatial database being obtained by generalized information system, much information is integrated.By the data call of local landform spatial database, can aspect water velocity, revise carrying out (moving back) water yield-time prediction curve.For carrying out (moving back) water yield-time prediction curve, in conjunction with the forecast data of the information such as current real time water level, rainfall, flow and the relevant hydrology, weather, build runoff evolution model, obtain next (move back) water yield-time prediction curve of more accurate tail water hydropower reservoir station at second day.
If realizing GROUP OF HYDROPOWER STATIONS in watershed concentrates and carries out integrated scheduling, the information such as Real-time Water rain condition, flow information, weather forecast, hydrologic forecast can be concentrated and converge to integrated dispatching center, integrated dispatching center is in conjunction with the forecast data of the information such as the current real time water level in Nei Ge monitoring point, basin, rainfall, flow and the relevant hydrology, weather, the runoff evolution model in whole basin, form each water power website come (moving back) water yield-time prediction curve.
4, operation plan generates
Utilize reservoir (moving back) water yield-time prediction curve, in conjunction with power station Working state data and power station scheduling rule, according to the operation plan generation model being set in advance in system, generate operation plan.For example, take power station, Tingzhou as example, the water power operation plan in need to be to its second day 7-24 time.The water yield-the time curve that comes of prediction shows, 12 noon will have and come one by one water yield peak, and the same day, the original only plan in power station, Tingzhou is opened a board and is carried out work, for preventing from abandoning the generation of water, board can shift to an earlier date 1 hour, establishes another board newly and rises storehouse, prevent from abandoning water and occur, guarantee lower reservoir operating mode demand simultaneously.
For integrated dispatching system, need to carry out according to it operation plan curve that (moving back) water yield-time curve is drawn to each power station.
5, performance analysis, and definite optimal scheduling plan
For power station operation plan, system, by operation plan being got in time and operating mode to the adjustment of certain unit quantity, forms many cover operation plans.Or, the operation plan that dispatcher forms operation plan previous step according to the specific (special) requirements of thing power station is adjusted, in order to determine that final operation plan can produce maximum benefit, system will be carried out simulation analysis calculating to the operating mode in second day power station according to operation plan.
For the plan phase
interior power station gross generation
or total power benefit
analyze, by the change to constraint condition, target is
or
can obtain maximal value.
In formula:
for
power station gross capability (
);
for
period electricity price (unit/kWh);
for the plan phase
the interior power station income (unit) of always generating electricity, this index can reflect the difference that time-of-use tariffs cause, it is applicable to the different power station of day part electric weight price in the plan phase;
for power station gross generation (kWh) in plan phase T, this index mainly reflects the exploitation efficiency to water resource.
And for the integrated scheduling of GROUP OF HYDROPOWER STATIONS, system, equally by getting the adjustment of certain unit quantity in time and operating mode, forms many cover operation plans.Or the specific (special) requirements in Dui Ge power station, integrated dispatching center collects, by artificial adjustment, obtain many cover operation plans.Carry out performance analysis for many covers operation plan.
For the plan phase
interior power station gross generation
or total power benefit
analyze, by the change to constraint condition, target is
or
can obtain maximal value.
In formula: n represents the quantity of GROUP OF HYDROPOWER STATIONS in basin, all the other parameters are with the parameter in the operation plan performance analysis of single power station, and system is according to the operation plan generating, by all power stations of watershed in plan phase T
or
calculate.System, by the technology to many covers operation plan, obtains respectively
or
peaked operation plan.
System obtains operating personnel's manual dispatching plan adjustment mainly can the adjustment that pulls to dispatch curve by identifying operation personnel, automatically carry out the calculating of above two objective functions according to new dispatch curve on backstage, the value that the value obtaining and system call plan are obtained contrasts, and finally provides optimum operation plan.
Take Ting Jiang basin as example, there are 9 main power stations in this basin, by power station, 9, Ting Jiang basin
or
carry out simulation analysis calculating, determine preferred plan.
6, operation plan is issued
System is by operation plan emulation display module, and to optimal scheduling, issue is shown in plan.Existing gis platform has truly reflected the relevant geographical distributed intelligence in basin, as the information such as length, river width in river between each reservoir, the operation plan of reservoir is subject to the impact of river water, and the water in downstream is the Bearing performance that upper pond is implemented operation plan equally.The water in river is closely connected with the result of operation plan, therefore can, by the displaying of flow on gis platform, indirectly show corresponding operation plan.Utilize gis platform or to present in advance the enforcement of each power station operation plan by the reproduction of the variation image of flow, compared to traditional operation plan figure, it does not want very professional dispatcher can have certain understanding to the work of each reservoir equally.
Concrete, dynamic simulative emulation specifically comprises floodgate opening process and state, dam sluicing fluidised form, and downstream river course flow-shape carries out analog simulation etc., and interactive analog simulation is dispatched in power station.The reservoir dam water levels of upstream and downstream, the discharge relation that arrange according to user, by regulating the Lift of sluice, in analog simulation environment, to sluice according to single hole open, fixing organize into groups in groups or freely, the mode such as whole unlatchings, the various operating modes that power station is dispatched are carried out analog simulation.Flow-shape carries out emulation by following technology, on gis map, builds segmented layer, gets unit length in segmented layer, and sets the distance that this unit length represents in actual geographic position, i.e. corresponding ratio.Distance between adjacent reservoir in water system is carried out to segmentation according to unit length, and thus, the distance between reservoir is just shown with the number of segmentation between reservoir.Platform arranges refresh time module is set, and it accepts the refresh time that user provides, i.e. the time of the river evolution of system representative in one second.Simultaneously platform carries out classification to flow, by different colors for representing different flows, in system according to the hydrological environment in basin, be provided with the relation curve of flow and flow velocity, based on different flow, obtain flow velocity by curve, in conjunction with refresh time, can obtain the distance of river evolution.Evolution distance in river is compared with segmentation scales, obtains the segments that will light refresh time domestic demand, according to the color of this flow, lights corresponding segmentation number.As shown in Figure 4, take Ting Jiang as example, getting a km is unit length, on gis map, to along spit of fland Jiang Liuxiang, builds segmented layer.Take Shang Meixi power station, Ting Jiang basin and power station, Tingzhou as example, its spacing is from being 9km, therefore, divide for this section, be divided into 9 sections, set point in mornings eight, reservoir Mei Xi power station will discharge water, and the flow before discharging water between Mei Xi power station and power station, Tingzhou is 3
therefore mark by non-warning coloration, in native system, adopt blueness to describe, along with opening a sluice gate and drawing out some water of Mei Xi power station, estimate, according to the start capacity in Mei Xi power station, can obtain corresponding flow increases, flow between Mei Xi power station and power station, Tingzhou will successively increase from top to down, estimate that it can make the flow in river course increase to 21
, therefore shown in red one by one to segmentation from top to down.
The refresh time providing according to user is 15 minutes/s, and it's one second time is past system, represents actual mistake 15 minutes, and according to the topographic structure of Ting Jiang, we can obtain, when flow is 21
time, flow velocity is 8km/h, the every mistake of system one second, the distance that traffic flow is crossed is 2km, the corresponding hop count section of being, i.e. the every mistake of system one second, from top to down 2 sections shown in red.Simultaneity factor below provides time coordinate, uses the personnel of system from figure, to see very intuitively, and the time in the time that redness arrives power station, Tingzhou is for when.Can shift to an earlier date 1 hour and rise storehouse, prevent from abandoning water and occur.
7, the recurrence of operation plan or preview are adjusted
The recurrence of operation plan and preview are by gis platform information Overlapping display, system can be before optimal scheduling be issued, by first previewing in gis system, the result of calculation of access power station scheduling model, scheduling scheme is carried out to analog simulation, check that whether operation plan is reasonable, and adjust according to preview result, guarantee the rationality of operation plan.Operation plan after adjustment, again by performance analysis platform, is analyzed contrast to its benefit.
System also can utilize this module to show historical operation plan, according to historical certain period data dispatching, carries out the emulation of historical dispatching simulation scheme.Carrying out of all kinds of operation plan research work carried out in displaying by historical operation plan.
8, emulation displaying is carried out in each power station, feeds back and adjusts operation plan
Each power station, obtaining after corresponding operation plan, carries out analogue simulation to the own power station operation plan of second day, and can pass through Benefit Model, obtains second day
or
, and according to local actual demand, advising to dispatching center, dispatching center is by reformulating operation plan, guarantees overcoming after problem
or
maximum, and again issue by web system.
9, the inquiry of other information
In order better to realize the inquiry of various information in watershed, one deck information display layer also superposes in gis system, by information display layer, for each main section, reservoir carry out focus foundation, and the access of passing through focus obtains the relevant information of the key elements such as reservoir, section, inquiry step reservoir power generation dispatching information.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (8)
1. the power station water power operation plan based on GIS technology generates and an emulation mode, it is characterized in that comprising the following steps:
Step S01: based on gis platform, build local landform spatial database;
Step S02: estimate generated energy based on upper water power station, prediction reservoir/water-break amount-time curve;
Step S03: based on real time water level, rain condition, flow information, in conjunction with the spatial information of storing in meteorology, hydrologic forecast information and described step S01, come/water-break amount-time prediction curve is adjusted;
Step S04: utilize reservoir/water-break amount-time prediction curve, in conjunction with power station Working state data and power station scheduling rule, according to the operation plan generation model being set in advance in system, generate operation plan;
Step S05: the operation plan generating in step S04 is calculated and simulation analysis the operating mode in second day power station, and obtain optimal scheduling plan; Described calculating is for the plan phase
interior power station gross generation
or total power benefit
carry out computational analysis, by the change to constraint condition, target is
or
can obtain maximal value; Described emulation is utilize gis platform by the reproduction of the variation image of flow or present in advance the enforcement of each power station operation plan.
2. the power station water power operation plan based on GIS technology according to claim 1 generates and emulation mode, it is characterized in that: also comprise optimum operation plan is issued by web system.
3. the power station water power operation plan based on GIS technology according to claim 1 generates and emulation mode, it is characterized in that: the implementation of described step S01 comprises the system by gis, spatial analysis is carried out in local landform space, and spatial analysis mainly comprises that the volume of reservoir length, area, girth, volume calculating, channel length, the degree of depth, average cross-section, corresponding section calculates; Dissecing the transversal section that obtains any section based on landform, analyze terrain slope, slope aspect, to the river channel cross section data number warehouse-in extracting, is the downstream river course advance of freshet model parameter that supplies a model.
4. the power station water power operation plan based on GIS technology according to claim 1 generates and emulation mode, it is characterized in that: described power station gross generation
, total power benefit
maximum value calculation formula as follows:
In formula:
for
power station gross capability (
);
for
period electricity price (unit/kWh);
for the plan phase
the interior power station income (unit) of always generating electricity, this index can reflect the difference that time-of-use tariffs cause, it is applicable to the different power station of day part electric weight price in the plan phase;
for power station gross generation (kWh) in plan phase T, this index reflects the exploitation efficiency to water resource.
5. the power station water power operation plan based on GIS technology according to claim 1 generates and emulation mode, it is characterized in that: described power station gross generation
or total power benefit
be that many covers operation plan is carried out to performance analysis, computing formula is as follows:
In formula: n represents the quantity of GROUP OF HYDROPOWER STATIONS in basin, all the other parameters are with the parameter in the operation plan performance analysis of single power station, and system is according to the operation plan generating, by all power stations of watershed in plan phase T
or
calculate; System, by the technology to many covers operation plan, obtains respectively
or
peaked operation plan.
6. the power station water power operation plan based on GIS technology according to claim 1 generates and emulation mode, it is characterized in that: described method also comprises recurrence and the preview of operation plan, by gis platform information Overlapping display, before optimal scheduling plan is issued, by first previewing on gis platform, the result of calculation of access power station scheduling model, scheduling scheme is carried out to analog simulation, check that whether operation plan is reasonable, and adjust according to preview result, guarantee the rationality of operation plan.
7. the power station water power operation plan based on GIS technology according to claim 1 generates and emulation mode, it is characterized in that: described emulation comprises: dynamic simulative emulation, this dynamic simulative emulation comprises floodgate opening process and state, dam sluicing fluidised form and downstream river course flow-shape is carried out to analog simulation; Described floodgate opening process and state are reservoir dam water levels of upstream and downstream, the discharge relations arranging according to user, by regulating the Lift of sluice, in analog simulation environment, sluice is opened, fixed and organize into groups in groups or freely, all open according to single hole, the various operating modes of power station scheduling are carried out to analog simulation; Described dam sluicing fluidised form and downstream river course flow-shape are by build segmented layer on gis map, in segmented layer, get unit length, and set the distance that this unit length represents in actual geographic position, the distance between adjacent reservoir in water system is carried out to segmentation according to unit length.
8. the power station water power operation plan based on GIS technology according to claim 7 generates and emulation mode, it is characterized in that: described GIS platform arranges refresh time module is set, it accepts the refresh time that user provides, i.e. the time of the river evolution of system representative in one second; Simultaneously platform carries out classification to flow, by different colors for representing different flows, in system according to the hydrological environment in basin, be provided with the relation curve of flow and flow velocity, based on different flow, obtain flow velocity by curve, in conjunction with refresh time, can obtain the distance of river evolution; Evolution distance in river is compared with segmentation scales, obtains the segments that will light refresh time domestic demand, according to the color of this flow, lights corresponding segmentation number.
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