CN106284239A - A kind of large-scale dam-type power plant prime selected site method - Google Patents

A kind of large-scale dam-type power plant prime selected site method Download PDF

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CN106284239A
CN106284239A CN201610645736.3A CN201610645736A CN106284239A CN 106284239 A CN106284239 A CN 106284239A CN 201610645736 A CN201610645736 A CN 201610645736A CN 106284239 A CN106284239 A CN 106284239A
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dam
section
river
power station
power plant
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CN106284239B (en
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罗家松
宋崇明
王新雷
徐彤
邢媛
田雪沁
马实
马实一
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Beijing Huajian Network Source Electric Power Design Institute
State Grid Corp of China SGCC
State Grid Economic and Technological Research Institute
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Beijing Huajian Network Source Electric Power Design Institute
State Grid Corp of China SGCC
State Grid Economic and Technological Research Institute
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    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
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    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract

The present invention relates to a kind of large-scale dam-type power plant prime selected site method, comprise the following steps: intend utilized river section according to the suitable river ethic minimum limit value screening building large-scale dam-type power plant, determine focus development section；Focus development section hypsographic map is generated, it is thus achieved that the former water level of focus development section and massif overhead height according to satellite terrain data；From focus development section, selected river course, upstream and downstream both sides river width at former water level, more than the suitable section building large-scale dam-type power plant river width, chooses multiple river width minimum point as the alternative dam site of dam；Each alternative dam site all takes some heights of swell, and each height of swell at each alternative dam site is a Dam Designs in Last scheme；Determine the dam parameter of each Dam Designs in Last scheme respectively；Determine inundated area and the effective storage of reservoir in each Dam Designs in Last scheme；Calculate installed capacity and the storage coefficient in power station in each Dam Designs in Last scheme；All Dam Designs in Last schemes are exported.

Description

A kind of large-scale dam-type power plant prime selected site method
Technical field
The present invention relates to the site selecting method of a kind of water conservancy projects, particularly relate to a kind of large-scale dam-type power plant prime selected site side Method.
Background technology
2015, global energy the Internet rose to country's proposal from strategic idea, has the large-scale dam of bigger regulating power Formula power station will become the important support power supply of global interconnection electrical network.Under the background building global energy Internet Strategy, no The only parameter such as water power theory potentiality, technical exploitation amount and economic developing potentiality in each region, the needs assessment whole world, Er Qieyou Necessary global each region is carried out water power preliminary planning, research plan to build the construction address of large-scale dam-type power plant, installed capacity and Control characteristic.
In Practical Project, water-power management needs a large amount of landform, geology, hydrology prospective design data to survey as support, scene Survey workload is big, time span is long, needs billions of business models easily.In the background building global energy Internet Strategy Under, water-power management object the most abroad, is generally difficult to obtain foreign country's regulatory authorities in strategic idea and planning stage With the support of technical support department, lack source and the channel of water-power management project data, therefore cannot use the water power of routine Addressing and method for designing.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of large-scale dam-type power plant prime selected site method, can lack In the case of weary detailed prospective design data and a large amount of business models, originate with satellite terrain data for key data, and by few Amount public data and engineering experience value support, and carry out intending the screening of utilized river section, the addressing of large-scale dam-type power plant and large-scale The installed capacity of dam-type power plant and control characteristic calculate.
For achieving the above object, the present invention takes techniques below scheme: a kind of large-scale dam-type power plant prime selected site method, Comprise the following steps:
1) according to the minimum limit value of the suitable river ethic building large-scale dam-type power plant, sieve intending utilized river section Choosing, determines focus development section；
2) obtain focus development section satellite terrain data, according to satellite terrain data generate focus development section etc. High line topography, obtains former water level and the massif overhead height of focus development section from hypsographic map；
3) on hypsographic map, selected river at former water level, the river course, both sides, upstream and downstream from focus development section Road width, more than the section of the suitable river width building large-scale dam-type power plant, measures selected section at equal intervals along side, riverbank River width at former water level, draws the selected section river width curve along riverbank；Choose the multiple rivers on selected section The position at width minimum point place, road is as the alternative dam site of dam；
4) height of swell maximum at each alternative dam site is preset, at each alternative dam site between elemental height value starts to wait Multiple height of swell value is chosen, until reaching height of swell maximum, each height of swell at each alternative dam site every being incremented by All represent a Dam Designs in Last scheme, thus obtain multiple different Dam Designs in Last scheme；
5) according to massif overhead height, alternative dam site and each height of swell value, the big of each Dam Designs in Last scheme is determined respectively Dam parameter, dam parameter includes: normal pool level, level of dead water, check flood level, dam crest height and dam crest are long；
6) according to dam parameter and the satellite terrain data of each Dam Designs in Last scheme, reservoir in each Dam Designs in Last scheme is determined Inundated area and effective storage；
7) according to open source information and engineering experience value, installed capacity and the storage capacity in power station in each Dam Designs in Last scheme is calculated Coefficient；
8) the alternative dam site of multiple dams that will choose, multiple Dam Designs in Last schemes that each alternative dam site is corresponding, and respectively Dam parameter, the inundated area of reservoir and effective area, the installed capacity in power station and the storage capacity system that Dam Designs in Last scheme is corresponding Number output, as reference during concrete addressing.
Also include step 9) judge the closed area that the normal pool level correspondence equal pitch contour of downstream, same section dam is surrounded Whether territory comprises the alternative dam site of upstream dam, if comprised, then exports the both Dam Designs in Last sides in described same section The incompatible information of case.
Described step 1) in the minimum limit value of the suitable river ethic building large-scale dam-type power plant according to planning to build dam formula The minimum installed capacity of power station demand is calculated；Described step 1) in screening focus development section include: obtain intend exploitation The annual runoff in Nei Ge river, region, by the annual runoff in Nei Ge river, region and the suitable river building large-scale dam-type power plant The minimum limit value of run-off contrasts, and in exclusionary zone, the annual runoff in each river builds large-scale dam-type power plant less than suitable The section of minimum limit value of river ethic, it is thus achieved that a plurality of focus development section.
The computing formula of the minimum limit value of the river ethic of the described large-scale dam-type power plant of suitable construction is:
Q min = P m i n · T a 0 k · H · T 0
In formula, QminMinimum limit value for the suitable river ethic building large-scale dam-type power plant；PminFor dam formula water power The minimum installed capacity stood；Ta0Year hours of operation for dam-type power plant；K is the comprehensive power factor in power station；H is power station Estimate the height of swell；T0It it is total hourage of a year.
Described step 3) in the suitable river width building large-scale dam-type power plant be 2 kms；Described step 5) in dam crest On the hypsographic map of a length of focus development section, the corresponding isocontour transversal length of dam crest height at alternative dam site.
Described step 6) in, in each Dam Designs in Last scheme, the inundated area of reservoir is: selected each alternative dam site upstream, section The former water level correspondence equal pitch contour in river course and terrain surface area between normal pool level correspondence equal pitch contour after building a dam；
In each Dam Designs in Last scheme, the effective storage of reservoir is: the normal water-retention of selected each alternative dam site upper river, section The corresponding equal pitch contour in position surrounds horizontal plane, the corresponding equal pitch contour of level of dead water and dam transversal and surrounds horizontal plane, just with dam transversal Often water storage level correspondence equal pitch contour surrounds horizontal plane and the corresponding equal pitch contour of level of dead water and surrounds water with dam transversal with dam transversal Terrain surface between plane and the volume of river course, dam position cross section encirclement.
Described step 7) in, the installed capacity calculating power station includes:
1. the net water head in power station is calculated；
2. the annual mean runoff of section, place, power station is obtained；
3. the annual electricity generating capacity in power station is calculated:
In formula, EYearAnnual electricity generating capacity for power station；K is the comprehensive power factor in power station；HOnlyFor power station net water head； Annual mean runoff for section, place, power station；T0It it is total hourage of a year；
4. calculating power station installed capacity:
In formula, NDressInstalled capacity for power station；TaAnnual utilization hours for power station.
The computing formula of described step 1. middle power station net water head is:
In formula, HOnlyFor power station net water head；HExtremelyLevel of dead water elevation for power station；HMaximum disappears andMaximum for power station disappears The degree of depth；HOriginalFormer water level elevation for river；ΔHLossFor along journey and local head loss.
Described step 2. in, the annual mean runoff of section, place, power station is consulted from open source information and is obtained；
Or, obtain the river mouth flow in remittance great river, section, place, power station, and calculated by rainfall and drainage area The annual mean runoff of section, place, power station；
Or, using the annual mean runoff of drainage area conversion section, place, power station, formula is:
In formula, S0Drainage area for the section that is associated；Known annual mean runoff for the section that is associated；S is water The drainage area of section, place, power station；Annual mean runoff for section, place, power station.
Described step 7) in, the computing formula of the storage coefficient of reservoir is:
In formula, β is the storage coefficient in power station；VEffectivelyEffective storage for reservoir.
Due to the fact that and take above technical scheme, it has the advantage that 1, at the beginning of the large-scale dam-type power plant of the present invention Step addressing and the method for design, be most important Data Source with satellite terrain data, with low cost, technically reliable, practicality Stronger.2, the large-scale dam-type power plant prime selected site of the present invention and the method for design, uses the isocontour transversal of terrain data Simulation dam, the plane domain mimetic surface surrounded with equal pitch contour and transversal thereof, with terrain surface immediately below the water surface and its Calculate reservoir effective storage, calculate other parameters based on reservoir effective storage.3, the large-scale dam-type power plant of the present invention tentatively selects Location and the method for design, it is adaptable to the prime selected site of the large-scale dam-type power plant of section, river and relevant parameter in length and breadth of land region Determine.4, the large-scale dam-type power plant prime selected site of the present invention and the method for design, it is adaptable to various large-scale dam-type power plant Prime selected site and the determination of relevant parameter.5, the large-scale dam-type power plant prime selected site of the present invention and the method for design, is lacking Carry out in detail the prime selected site of large-scale dam-type power plant and relevant parameter in the case of project data, a large amount of business models really Fixed.6, the large-scale dam-type power plant prime selected site of the present invention and the method for design, can be that Hydropower Project feasibility study provides A large amount of practical basic datas.
Accompanying drawing explanation
Fig. 1 is the flow chart of the present invention；
Fig. 2 is the schematic diagram that at the former water level in river course, river width is measured；
Fig. 3 is river width curve synoptic diagram；
Fig. 4 is river course parameter and the mutual relation schematic diagram of dam-type power plant reservoir parameter.
Detailed description of the invention
With embodiment, the present invention is described in detail below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of large-scale dam-type power plant prime selected site of the present invention and the method for design, including following step Rapid:
1) according to the minimum limit value of the suitable river ethic building large-scale dam-type power plant, sieve intending utilized river section Choosing, determines focus development section.
River ethic size is the important evidence judging focus development section, and the least meeting of run-off causes dam-type power plant Installed capacity is less, and regulating power is the strongest.According to planning to build the minimum installed capacity of dam-type power plant demand, calculate suitable build big The minimum limit value of the river ethic of type dam-type power plant.Then from open source information, obtain the year intending Nei Ge river, developing zone Run-off, and by the discharge of river of the annual runoff in Nei Ge river, region Yu the calculated large-scale dam-type power plant of suitable construction The minimum limit value of amount contrasts, and gets rid of the annual runoff a large amount of sections less than minimum limit value, it is thus achieved that a small amount of annual runoff is big Focus development section.
The computing formula of the minimum limit value of the suitable river ethic building large-scale dam-type power plant is:
Q min = P m i n · T a 0 k · H · T 0 - - - ( 1 )
In formula, QminMinimum limit value for the suitable river ethic building large-scale dam-type power plant；PminFor dam formula water power The minimum installed capacity stood, determines according to demand；Ta0Year hours of operation for dam-type power plant；K is comprehensively to exert oneself in power station Coefficient, relevant with acceleration of gravity and hydropower station overall efficiency etc., when installed capacity is more than 250,000 kilowatt hours, k=8.5, When installed capacity is between 2.5 ten thousand to 25 ten thousand kilowatts, k=8.0～8.5, when installed capacity is less than 2.5 ten thousand kilowatt hours, k= 6.0～8.0；H is that the height of swell is estimated in the power station chosen according to engineering experience, in order to obtain the minimum of river ethic Value, estimates the height of swell and chooses maximum, take H=200 rice here；T0Being total hourage of a year, its value is 8760.
2) obtain the satellite terrain data of focus development section from open source information, generate emphasis according to satellite terrain data and open Send out the hypsographic map of section；(i.e. river course is original can to obtain the former water level of focus development section from hypsographic map Water surface elevation), the river course parameter such as massif overhead height.
3) as shown in Figures 2 and 3, on hypsographic map, selected river course, both sides, upstream and downstream from focus development section River width at former water level is more than the section of the suitable river width building large-scale dam-type power plant, along side, riverbank every 10 Selected section river width at former water level measured by rice, and the direction measuring river width is vertical with water (flow) direction, draws selected Section is along the river width curve on riverbank；Choose the position at 5 river width minimum point places on selected section as water The alternative dam site on dam, all chooses when minimum point is less than 5.Wherein, the suitable river course width building large-scale dam-type power plant Degree can be 2 kms.
4) height of swell refers to the height that the water level produced because current are obstructed raises, and the height of swell of dam-type power plant is i.e. The difference in height of the former water level in the normal pool level in power station and river course after building a dam.Each alternative dam site is determined respectively according to engineering experience The height of swell maximum H at placemax, height of swell maximum HmaxIt is generally not more than 200 meters, and the massif top minimum less than both sides Portion's height 20 meters；At each alternative dam site, the height of swell, from the beginning of elemental height value, is incremented by value every n rice, until reaching Height of swell maximum Hmax, take 10 height of swell values altogether, wherein, elemental height value can be 10 meters, then n=(Hmax-10)/ 9.Each height of swell at each alternative dam site all represents a Dam Designs in Last scheme, such that it is able to obtain multiple difference Dam Designs in Last scheme.
5) dam of each Dam Designs in Last scheme is determined respectively according to massif overhead height, alternative dam site and each height of swell value Parameter, dam parameter includes: normal pool level, level of dead water, check flood level, dam crest height and dam crest are long.Wherein, such as Fig. 4 Shown in, normal pool level is the height of swell with the difference in height of former water level；Level of dead water is the height of swell with the difference in height of former water level 1/3；Check flood level i.e. flood control level, more than normal pool level 5 meters；Dam crest height more than normal pool level 10 meters；? On the hypsographic map of focus development section, the corresponding isocontour transversal length of alternative dam site dam crest height determine dam Top is long.
6) according to dam parameter and the satellite terrain data of each Dam Designs in Last scheme, flooding of each dam correspondence reservoir is determined Area and effective storage.
The former water level correspondence equal pitch contour of selected each alternative dam site upper river, section with build a dam after normal pool level corresponding etc. Terrain surface area between high line, is the inundated area of reservoir in each Dam Designs in Last scheme.
The normal pool level correspondence equal pitch contour of selected each alternative dam site upper river, section surrounds level with dam transversal Face, level of dead water correspondence equal pitch contour surround horizontal plane with dam transversal, the corresponding equal pitch contour of normal pool level encloses with dam transversal Become horizontal plane and level of dead water correspondence equal pitch contour and dam transversal to surround the terrain surface between horizontal plane and dam institute is in place Put the volume that river course cross section surrounds, be the effective storage of reservoir in each Dam Designs in Last scheme.
Dam parameter according to each Dam Designs in Last scheme and satellite terrain data, calculate flooding of each dam correspondence reservoir Do not have area and effective storage.
7) (height is such as choked water at open source information (such as terrain data, drainage area, annual mean runoff etc.) and engineering experience value Degree, dam length, annual utilization hours etc.) support under, calculate installed capacity and the storage capacity system in power station in each Dam Designs in Last scheme Number.
Owing to the relevant hydrological data of selected section is deficient, the present invention uses method for simplifying installed capacity year to utilize little Time number method, determine the installed capacity in power station.The basic ideas of installed capacity annual utilization hours method are: first calculate power station Annual electricity generating capacity, then estimates the annual utilization hours in power station, so that it is determined that the installed capacity in power station.Present invention assumes that water power The net water head stood is constant, and the water amount of each year hydraulic turbine, equal to the yielding flow of section, ignores the unknown losses of current, water wheels Engine efficiency and generating efficiency are constant in variable parameter operation, then calculate installed capacity and the storage coefficient in power station, including following Step:
1. calculate the net water head in power station: power station net water head equal to upper pond level elevation (elevation be using sea level as The height above sea level of water datum level) deduct level of tail water elevation, then deduct along journey and local head loss.Do not consider hydroelectric station operation Over time, upper pond level elevation takes and adds, with reservoir minimum capacity of a reservoir, the water storage level that half effective storage is corresponding Shi Shuitou, simplifies Under the conditions of be level of dead water and add 2/3 maximum and disappear the degree of depth that falls；After assuming to build dam, the water level in downstream keeps constant, and level of tail water elevation takes Build the original water level elevation in the river before dam, then the computing formula of power station net water head is:
In formula, HOnlyFor power station net water head；HExtremelyLevel of dead water elevation for power station；HMaximum disappears andMaximum for power station disappears The degree of depth, equal to the difference in height of normal pool level Yu level of dead water；HOriginalFormer water level elevation for river；ΔHLossFor along journey and local water Head loss, takes 1～3 meter, and head is the height difference of dam water levels of upstream and downstream, and head is exactly the height of swell in this patent, water Δ H when head is 200 metersLossTake 3 meters, the Δ H of head low head hydropower station below 40 metersLossTake 1 meter.
2. the annual mean runoff of acquisition section, place, power station: the annual mean runoff i.e. water power of section, place, power station Stand upland water flow, unrelated with the time, for constant.The annual mean runoff of part section can be found from open source information.Nothing Method finds the section of annual mean runoff typically can find its river mouth flow importing great river, in engineering practice, the most permissible Its annual mean runoff is calculated by rainfall and drainage area.If rainfall, and the river master having cannot be found in section, river Snow melt to be leaned on supplements rather than rainwater, then can directly use drainage area to convert, and convert formula is:
In formula, S0For the drainage area of the section that is associated, data are from open source information；Known for the section that is associated Annual mean runoff, data are from open source information；S is the drainage area of required section, and data are from open source information；For water The annual mean runoff of section, place, power station.
3. the annual electricity generating capacity in power station is calculated:
In formula, EYearAnnual electricity generating capacity for power station；T0Being total hourage of a year, its value is 8760.
4. according to power station functional localization and the method for operation (such as the power station of wind-powered peak regulation), with reference to type water The annual utilization hours in built power station in power station (i.e. the power station that installed capacity, functional localization and the method for operation are similar) and region Number, determines the annual utilization hours planning to build power station；Formula (5) is used to calculate the installed capacity in power station, and by known water wheels The integral multiple of machine single-machine capacity rounds.
In formula, NDressInstalled capacity for power station；TaAnnual utilization hours for power station.
5. calculate the storage coefficient of reservoir, determine regulation performance: storage coefficient is to represent relatively referring to of dam safety evaluation performance Mark, according to the size of storage coefficient, can tentatively judge the regulating cycle of reservoir: if storage coefficient is big, represent dam safety evaluation Performance is good, and regulating cycle is long；Otherwise, representing dam safety evaluation poor performance, regulating cycle is short.Can by Hydropower Plant Reservoir storage coefficient It is the several types such as day regulation, moon regulation, season regulation, year regulation and many years regulation with the regulation performance of division reservoir.Storage capacity system The computing formula of number is:
In formula, β is the storage coefficient in power station；VEffectivelyFor the effective storage of reservoir, by step 6) obtain.
β ＜ 0.02 is without balancing reservoir；β=0.02～0.03 is daily regulation reservoir；β=0.03～0.08 regulates water for the moon Storehouse；β=0.08～0.20 is season balancing reservoir；β=0.20～0.30 is incomplete annual-storage reservoir；β=0.30～0.50 is Perfect year balancing reservoir；β > 0.5 is carry-over storage.
8) the alternative dam site of multiple dams that will choose, multiple Dam Designs in Last schemes that each alternative dam site is corresponding, and respectively Dam parameter, the inundated area of reservoir and effective area, the installed capacity in power station and the storage capacity system that Dam Designs in Last scheme is corresponding Number output, as reference during concrete addressing.
9) compatibility determination of the Dam Designs in Last scheme of different alternative dam sites in same section: judge that downstream, same section is big Whether the enclosed region that the normal pool level correspondence equal pitch contour on dam is surrounded comprises the alternative dam site of upstream dam, if comprised, Then export the both incompatible information of Dam Designs in Last scheme in described same section, i.e. can not build on this section simultaneously this two The dam of individual design.
In above-described embodiment, step 2) in use computer software Global Mapper to read defending of focus development section Star terrain data, and generate hypsographic map, efficiency is higher, and practicality is stronger.
In above-described embodiment, the every calculating in the inventive method all can use computer software to be automatically performed, efficiency Higher, practicality is stronger.
The various embodiments described above are merely to illustrate the present invention, the structure of the most each parts, arrange position and connected mode etc. thereof All can be varied from, every equivalents carried out on the basis of technical solution of the present invention and improvement, the most should not arrange In addition in protection scope of the present invention.

Claims (10)

1. one kind large-scale dam-type power plant prime selected site method, it is characterised in that comprise the following steps:
1) according to the minimum limit value of the suitable river ethic building large-scale dam-type power plant, screen intending utilized river section, Determine focus development section；
2) obtain the satellite terrain data of focus development section, generate the equal pitch contour of focus development section according to satellite terrain data Topography, obtains former water level and the massif overhead height of focus development section from hypsographic map；
3) on hypsographic map, the selected river course, both sides, upstream and downstream river course width at former water level from focus development section Degree, more than the section of the suitable river width building large-scale dam-type power plant, measures selected section at equal intervals former along side, riverbank River width at water level, draws the selected section river width curve along riverbank；Choose the multiple river courses width on selected section The position at degree minimum point place is as the alternative dam site of dam；
4) preset the height of swell maximum at each alternative dam site, start to pass at equal intervals from elemental height value at each alternative dam site Elect additional member and take multiple height of swell value, until reaching height of swell maximum, each height of swell equal generation at each alternative dam site One Dam Designs in Last scheme of table, thus obtain multiple different Dam Designs in Last scheme；
5) according to massif overhead height, alternative dam site and each height of swell value, the dam ginseng of each Dam Designs in Last scheme is determined respectively Number, dam parameter includes: normal pool level, level of dead water, check flood level, dam crest height and dam crest are long；
6) according to dam parameter and the satellite terrain data of each Dam Designs in Last scheme, flooding of reservoir in each Dam Designs in Last scheme is determined Do not have area and effective storage；
7) according to open source information and engineering experience value, installed capacity and the storage capacity system in power station in each Dam Designs in Last scheme is calculated Number；
8) the alternative dam site of multiple dams that will choose, multiple Dam Designs in Last schemes that each alternative dam site is corresponding, and each dam Corresponding dam parameter, the inundated area of reservoir and effective area, the installed capacity in power station and the storage coefficient of design is defeated Go out, as reference during concrete addressing.
A kind of large-scale dam-type power plant prime selected site method the most as claimed in claim 1, it is characterised in that also include step 9) Judge whether the enclosed region that the normal pool level correspondence equal pitch contour of downstream, same section dam is surrounded comprises upstream dam Alternative dam site, if comprised, then exports two kinds of incompatible information of Dam Designs in Last scheme in described same section.
A kind of large-scale dam-type power plant prime selected site method the most as claimed in claim 1, it is characterised in that described step 1) in The minimum limit value of the suitable river ethic building large-scale dam-type power plant is according to the minimum installation planning to build dam-type power plant demand Calculation of capacity obtains；
Described step 1) in screening focus development section include: obtain intend Nei Ge river, developing zone annual runoff, by region The annual runoff in interior each river contrasts with the minimum limit value of the suitable river ethic building large-scale dam-type power plant, gets rid of The annual runoff in Nei Ge river, region is less than the section of the minimum limit value of the suitable river ethic building large-scale dam-type power plant, Obtain a plurality of focus development section.
A kind of large-scale dam-type power plant prime selected site method the most as claimed in claim 3, it is characterised in that described suitable construction The computing formula of the minimum limit value of the river ethic of large-scale dam-type power plant is:
Q m i n = P m i n · T a 0 k · H · T 0
In formula, QminMinimum limit value for the suitable river ethic building large-scale dam-type power plant；PminFor dam-type power plant Minimum installed capacity；Ta0Year hours of operation for dam-type power plant；K is the comprehensive power factor in power station；H is that power station is estimated The height of swell；T0It it is total hourage of a year.
A kind of large-scale dam-type power plant prime selected site method the most as claimed in claim 1, it is characterised in that described step 3) in The suitable river width building large-scale dam-type power plant is 2 kms；
Described step 5) in dam crest a length of focus development section hypsographic map on, at alternative dam site, dam crest height is corresponding etc. The transversal length of high line.
A kind of large-scale dam-type power plant prime selected site method the most as claimed in claim 1, it is characterised in that described step 6) In, in each Dam Designs in Last scheme, the inundated area of reservoir is: the former water level correspondence etc. of selected each alternative dam site upper river, section High line and terrain surface area between normal pool level correspondence equal pitch contour after building a dam；
In each Dam Designs in Last scheme, the effective storage of reservoir is: the normal pool level pair of selected each alternative dam site upper river, section Answer equal pitch contour to surround horizontal plane with dam transversal, the corresponding equal pitch contour of level of dead water surrounds horizontal plane with dam transversal, normally stores Water level correspondence equal pitch contour surrounds horizontal plane and the corresponding equal pitch contour of level of dead water and surrounds horizontal plane with dam transversal with dam transversal Between terrain surface and river course, dam position cross section surround volume.
A kind of large-scale dam-type power plant prime selected site method the most as claimed in claim 1, it is characterised in that described step 7) In, the installed capacity calculating power station includes:
1. the net water head in power station is calculated；
2. the annual mean runoff of section, place, power station is obtained；
3. the annual electricity generating capacity in power station is calculated:
In formula, EYearAnnual electricity generating capacity for power station；K is the comprehensive power factor in power station；HOnlyFor power station net water head；For water The annual mean runoff of section, place, power station；T0It it is total hourage of a year；
4. calculating power station installed capacity:
In formula, NDressInstalled capacity for power station；TaAnnual utilization hours for power station.
A kind of large-scale dam-type power plant prime selected site method the most as claimed in claim 7, it is characterised in that described step 1. in The computing formula of power station net water head is:
In formula, HOnlyFor power station net water head；HExtremelyLevel of dead water elevation for power station；HMaximum disappears andDisappear the degree of depth that falls for the maximum in power station； HOriginalFormer water level elevation for river；ΔHLossFor along journey and local head loss.
A kind of large-scale dam-type power plant prime selected site method the most as claimed in claim 7, it is characterised in that described step is 2. In, the annual mean runoff of section, place, power station is consulted from open source information and is obtained；
Or, obtain the river mouth flow in remittance great river, section, place, power station, and calculate water power by rainfall and drainage area Stand the annual mean runoff of section, place；
Or, using the annual mean runoff of drainage area conversion section, place, power station, formula is:
In formula, S0Drainage area for the section that is associated；Known annual mean runoff for the section that is associated；S is power station The drainage area of section, place；Annual mean runoff for section, place, power station.
A kind of large-scale dam-type power plant prime selected site method the most as claimed in claim 1, it is characterised in that described step 7) In, the computing formula of the storage coefficient of reservoir is:
In formula, β is the storage coefficient in power station；VEffectivelyEffective storage for reservoir.
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CN108643116A (en) * 2018-05-08 2018-10-12 河海大学 A kind of evaluation method of mountain area property Reservoir region river water surface width
CN112287301A (en) * 2020-10-29 2021-01-29 东莞理工学院 Global scale hydroelectric power generation capacity evaluation method based on global hydrological model
CN112766721A (en) * 2021-01-19 2021-05-07 黄河勘测规划设计研究院有限公司 Method for planning and site selection and scale estimation of check dam
CN114202097A (en) * 2021-11-04 2022-03-18 中国电建集团华东勘测设计研究院有限公司 Reservoir dam site resource identification method based on terrain space data processing technology

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SU687166A1 (en) * 1977-07-22 1979-09-25 Ордена Ленина Управление Красноярскгэсстрой Method of erecting concrete dams
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Publication number Priority date Publication date Assignee Title
CN107862421A (en) * 2017-12-27 2018-03-30 河海大学 A kind of river-like reservoir influence to the construction Pre-Evaluation method
CN108643116A (en) * 2018-05-08 2018-10-12 河海大学 A kind of evaluation method of mountain area property Reservoir region river water surface width
CN108643116B (en) * 2018-05-08 2019-10-22 河海大学 A kind of evaluation method of mountain area property Reservoir region river water surface width
CN112287301A (en) * 2020-10-29 2021-01-29 东莞理工学院 Global scale hydroelectric power generation capacity evaluation method based on global hydrological model
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CN112766721A (en) * 2021-01-19 2021-05-07 黄河勘测规划设计研究院有限公司 Method for planning and site selection and scale estimation of check dam
CN112766721B (en) * 2021-01-19 2021-09-28 黄河勘测规划设计研究院有限公司 Method for planning and site selection and scale estimation of check dam
CN114202097A (en) * 2021-11-04 2022-03-18 中国电建集团华东勘测设计研究院有限公司 Reservoir dam site resource identification method based on terrain space data processing technology

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