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CN105096216B - A kind of method of quick calculating hydropower station amount - Google Patents

A kind of method of quick calculating hydropower station amount Download PDF

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CN105096216B
CN105096216B CN201510558187.1A CN201510558187A CN105096216B CN 105096216 B CN105096216 B CN 105096216B CN 201510558187 A CN201510558187 A CN 201510558187A CN 105096216 B CN105096216 B CN 105096216B
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days
reservoir
period
year
generated energy
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CN105096216A (en
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刘志武
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China Yangtze Power Co Ltd
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China Yangtze Power Co Ltd
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Abstract

A kind of method of quick calculating hydropower station amount, the main reservoir operation mode for including selection history Fuzzy Period of Runoff Series, determining power station establish the relationship between effective runoff and generated energy to calculate the generated energy in power station.Present invention firstly provides effective diameter flow indicators, after disposable modeling, can directly basis obtain, are not required to by other parameters by period runoff computation；" the effective run-off of generated energy-" proposed by the present invention transformational relation each other, under the given Hydropower Plant Reservoir method of operation, future regimen condition be converted to effective run-off after, using simple computation or tables look-up and can be obtained corresponding annual electricity generating capacity, the annual electricity generating capacity under given reservoir operation mode can simply, be quickly calculated, application scenarios are extensive.

Description

A kind of method of quick calculating hydropower station amount
Technical field
The present invention relates to a kind of methods calculating hydropower station amount.
Background technology
Generated energy is to evaluate the important indicator of economic benefit of hydropower sta, and run-off is the important factor in order of generated energy One of.Under identical reservoir operation mode, there are positive correlations with annual runoff for annual electricity generating capacity, but simultaneously by year internal diameter Flowing assigning process influences, and causes annual electricity generating capacity that multivalue correspondence is presented with annual runoff.It is identical in annual runoff, Annual electricity generating capacity may differ by more, or even the phenomenon that annual runoff is larger and generated energy is smaller occurs, the main reason is that runoff Productive head deficiency is to reduce generated energy when Hydropower Plant can not completely be sent out when measuring hemiplegia, run-off is partially rich.Therefore merely with Annual runoff can not fast and accurately calculate generated energy, year internal diameter stream assigning process also can not directly be described with power generation magnitude relation. It is the computational methods complexity that uses at present, heavy workload, less efficient, and the computational software system of profession, applied field must be used Scape is limited.
Invention content
In view of the deficienciess of the prior art, the present invention proposes the concept and computational methods of effective run-off, by water Situation is converted into effective run-off, can quickly calculate hydropower station amount with this method.
The object of the present invention is achieved like this：A kind of method of quick calculating hydropower station amount, includes the following steps：
Step 1, the history in power station is chosen for many years by ten days Fuzzy Period of Runoff Series；
Step 2, it determines the reservoir operation mode in power station, that is, determines the non-period abandoned the water phase, abandon the water phase of reservoir；
Step 3, the reservoir operation mode for taking out storage to balance, determines under a certain reservoir level not according to Water-sodium disturbance formula The corresponding period generated energy E with reservoir inflow Q；
Step 4, according to the relationship of reservoir inflow Q and period generated energy E, maximum period generated energy under a certain reservoir level is determined EmaxCorresponding reservoir inflow range [Qm, Qn], wherein QmFor EmaxCorresponding minimum reservoir inflow, QnFor EmaxCorresponding maximum enters Library flow；
Step 5, the relationship between reservoir inflow and period generated energy is established in segmentation, works as Q<QmWhen, it establishesWithBetween Functional relation, i.e.,Work as Q>QnWhen, it establishesWithBetween functional relation, i.e.,
Step 6, effective run-off W is calculated by ten daysi, the water phase is abandoned for non-, ten days equivalent diameter is calculated according to practical reservoir inflow Flow Wi, i.e. Wi=Q*T；For abandoning the water phase, work as Q<QmWhen, ten days effective run-offWork as Qm≤Q≤Qn When, ten days effective run-off Wi=Q*T, works as Q>QnWhen, ten days effective run-offWherein T is the period in ten days；
Step 7, by each ten days WiIt is cumulative to obtain year effective run-off WYear；
Step 8, it is calculated year by year using Water-sodium disturbance formula by ten days Fuzzy Period of Runoff Series and reservoir operation mode for many years according to history Annual electricity generating capacity EYear；
Step 9, the equivalent run-off that annual electricity generating capacity and step 7 that step 8 obtains obtain is fitted, is obtained corresponding Table is made convenient for looking into calculation in function expression, final result.
The history Fuzzy Period of Runoff Series be power station history for many years, generally 30 years or more day by day, ten days or the moon be averaged into Library flow.
Ten days effective run-off in step 6 is alternatively day, week or the moon effective run-off, and corresponding T is the corresponding period.
The method of hydropower station amount is quickly calculated in the measurement for the generating capacity contained in measuring river water Using.
The method of quick calculating hydropower station amount provided by the invention has following effective：
1) for the present invention from evaluation power generation measuring angle, being put forward for the first time can be with concentrated expression annual runoff and year internal diameter flow point The single index of feature with process --- effective run-off, perfect power station assessment indicator system.
2) effective diameter flow indicator proposed by the present invention can be directly according to by period run-off after disposable modeling It is calculated, is not required to by other parameters.
3) " the effective run-off of generated energy-" proposed by the present invention transformational relation each other, in given Hydropower Plant Reservoir operation side Under formula, future regimen condition be converted to effective run-off after, using simple computation or table look-up and can be obtained corresponding annual electricity generating capacity, The annual electricity generating capacity under given reservoir operation mode can simply, be quickly calculated, application scenarios are extensive.
In application of the present invention, it is corresponding linear that monodrome is presented with generated energy substantially for effective run-off in step 7 Relationship reflects the generating capacity that this year inflow characteristics are contained, and power generation can not quickly be calculated using practical run-off by solving The problem of amount.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the flow chart of the method for the present invention.
Fig. 2 is Q<QmWhen,WithBetween function relation figure.
Fig. 3 is Q>QnWhen,WithBetween function relation figure.
Fig. 4 is the function relation figure between annual electricity generating capacity and year effective run-off.
Specific implementation mode
The object of the present invention is achieved like this：A kind of method of quick calculating hydropower station amount, includes the following steps：
Step 1, the history 90 years of some hydropower station is chosen by ten days Fuzzy Period of Runoff Series；I.e. power station history is put in storage by the mean of dekan and flows for 90 years Amount；Component values are shown in Table 1：
Table 1 is 90 years Fuzzy Period of Runoff Series sentence by sentence (extracts) of some hydropower station history
Time Nineteen twenty Nineteen twenty-one Nineteen twenty-two Nineteen twenty-three Nineteen twenty-four Nineteen twenty-five Nineteen twenty-six Nineteen twenty-seven Nineteen twenty-eight Nineteen twenty-nine Nineteen thirty
Early January 140 140 190 170 180 120 150 180 130 150 160
Mid-January 130 130 180 140 150 120 130 170 130 140 160
Late January 130 130 170 130 150 110 130 180 120 130 160
Early Febuary 130 120 190 130 150 110 130 180 130 130 160
Mid-February 110 130 220 130 150 120 120 180 130 130 140
Late Febuary 120 130 220 140 150 120 110 190 140 130 140
Early March 130 140 210 140 220 130 120 200 160 120 130
Mid-March 140 140 180 190 180 150 140 240 150 110 160
Late March 180 170 180 180 230 140 200 230 210 130 210
Early April 210 170 270 220 240 170 270 200 250 130 200
Mid-April 300 210 260 260 210 230 340 200 330 190 250
Late April 220 210 230 340 290 260 230 270 360 170 370
The first tenday period of a month in May 260 230 380 530 410 330 300 340 440 370 410
Mid-May 350 350 420 650 450 480 390 500 380 480 440
Late May 300 570 320 660 360 490 460 630 420 430 630
Early June 350 430 410 540 460 530 530 650 320 490 560
Mid-June 500 670 700 670 550 440 520 890 490 470 810
Late June 670 550 980 1270 620 740 710 1230 710 730 950
Early July 1290 940 980 1130 1040 1020 790 1310 930 960 970
Mid-July 1550 1320 970 950 900 1030 1050 1270 1230 830 1200
Late July 1580 960 790 900 660 1160 960 750 1360 1060 1250
Early August 840 610 570 1040 510 1060 1330 690 1060 1240 1340
Mid-August 750 690 940 780 560 1000 1060 940 920 1150 780
Late August 630 690 730 970 640 760 610 750 760 920 1300
Early September 710 500 950 900 750 590 1170 1000 710 1270 1130
Mid-September 650 710 840 1070 480 590 820 840 820 1000 1020
Late September 430 560 1240 1120 320 600 1050 680 630 1300 920
Early October 580 550 1000 1100 370 520 970 880 550 1260 560
Mid-October 590 600 840 890 470 480 790 540 490 830 500
Late October 590 490 810 900 260 540 700 520 440 610 440
Early November 410 410 550 520 270 380 580 470 350 380 360
Mid-November 380 340 420 430 250 270 460 340 310 290 280
Late November 250 230 340 330 190 240 340 240 260 240 230
Early December 210 210 250 300 150 250 280 190 230 240 220
Mid-December 180 180 220 230 130 200 230 170 190 200 220
Late December 170 160 200 210 120 170 200 150 170 180 170
Step 2, it determines the reservoir operation mode in power station, that is, determines the non-period abandoned the water phase, abandon the water phase of reservoir；The water The 1-6 months, the 10-12 months in power station abandon the water phase to be non-, and the 7-9 months are to abandon the water phase；
Step 3, take out storage balance reservoir operation mode, according to Water-sodium disturbance formula respectively determine 65 meters, 70 meters, The corresponding period generated energy E of difference reservoir inflow Q under 75 Micoud water levels (component values are shown in Table 2)；Different reservoir inflow Q are corresponding Period generated energy E's is calculated as universal method, (bibliography：He Junshi, Lin Hongxiao edit water resources and utilize [M] Beijing:Chinese Water Conservancy water power publishing house, 2006.).
Table 2 is the corresponding period generated energy E (extracts) of difference reservoir inflow Q under a certain reservoir level
Step 4, the relationship of the reservoir inflow Q and period generated energy E that are calculated according to step 3 determine 65 Micouds respectively Maximum period generated energy E under water levelmaxCorresponding reservoir inflow is Qm=Qn=1030m3/ s, the corresponding storage stream of 70 Micoud water levels Amount is Qm=Qn=1070m3/ s, the corresponding reservoir inflow of 75 Micoud water levels are Qm=1000m3/ s, Qn=1370m3/s；
Step 5, relationship between reservoir inflow and period generated energy is established in segmentation, when 65 meters of reservoir level for, work as Q< 1030m3When/s, establishWithBetween functional relation, i.e.,Work as Q>1030m3When/s, establishWithBetween functional relation, i.e.,When practical operation, it can be used and drawn respectively using MS Excel softwaresWithWithScatter plot, addition Trendline and piecewise fitting Trendline formula.
Such as attached drawing 2, attached drawing 3, R in figure2Indicate the degree of correlation of horizontally and vertically two groups of data, R2=1 indicates two groups of data It is perfectly correlated, R2=0 indicates that two groups of data are completely uncorrelated.
Step 6, effective run-off W is calculated by ten daysi, the water phase is abandoned for non-, ten days equivalent diameter is calculated according to practical reservoir inflow Flow Wi, i.e. Wi=Q*T；For abandoning the water phase, work as Q<QmWhen, ten days effective run-offWork as Qm≤Q≤Qn When, ten days effective run-off Wi=Q*T, works as Q>QnWhen, ten days effective run-offWherein T is period in ten days, portion Fractional value is shown in Table 3；
Table 3 is the history of the invention being calculated for many years by ten days effective run-off (extracts)
Step 7, by each ten days WiIt is cumulative to obtain year effective run-off WYear；Component values are shown in Table 4.
The year effective run-off (extracts) of the history that 4 present invention of table is calculated for many years.
Nineteen twenty Nineteen twenty-one Nineteen twenty-two Nineteen twenty-three Nineteen twenty-four Nineteen twenty-five Nineteen twenty-six Nineteen twenty-seven Nineteen twenty-eight Nineteen twenty-nine Nineteen thirty
128.6 127.1 159.1 175.8 116.3 136 156.2 156 138.6 154.6 155.4
Step 8, it is calculated year by year using Water-sodium disturbance formula by ten days Fuzzy Period of Runoff Series and reservoir operation mode for many years according to history Annual electricity generating capacity EYear, component values are shown in Table 5.(bibliography is calculated with step 3：He Junshi, Lin Hongxiao edit water resources and Utilize the Beijing [M]:Chinese Water Conservancy water power publishing house, 2006.).
The annual electricity generating capacity year by year that table 5 is obtained by ten days runoff computation under given reservoir operation mode using history for many years (extracts)
Nineteen twenty Nineteen twenty-one Nineteen twenty-two Nineteen twenty-three Nineteen twenty-four Nineteen twenty-five Nineteen twenty-six Nineteen twenty-seven Nineteen twenty-eight Nineteen twenty-nine Nineteen thirty
27.7 27.3 34.8 37.3 25.5 28.6 33.8 33.1 29.5 32.7 33
Step 9, the annual electricity generating capacity that step 8 obtains and year effective run-off that step 7 obtains are fitted, such as attached drawing 4, Table is made convenient for looking into calculation, table 6 in final result by the function expression obtained according to fitting.
Table 6 is the number list (extracts) that the present invention is calculated.
Year effective run-off Annual electricity generating capacity
90 19.9
100 22
110 24.2
120 26.3
130 28.5
140 30.6
150 32.8
160 34.9
170 37.1
180 39.2
190 41.4
200 43.5
The method of quick calculating hydropower station amount provided by the invention, applied to the hair contained in measurement river water Electric energy power is presented the corresponding linear relationship of monodrome by effective run-off with generated energy, measures this year inflow characteristics institute substantially The generating capacity contained solves the problems, such as quickly calculate generated energy using practical run-off.
Above-mentioned embodiment, the specific case that only purpose of the method for the present invention, technical solution are further described, Present invention is not limited to this.The present invention has versatility, is adjusted as needed to some of technical details, you can uses In effective runoff computation in reservoir arbitrary period (including day, week, ten days, the moon, year etc.), while effectively run-off alternatively referred to as has Effect water, effective Incoming water quantity is converted to effective discharge, effective reservoir inflow, all in disclosure of the invention within the scope of institute Any modification, equivalent substitution, improvement and etc. done, are all included in the scope of protection of the present invention.

Claims (4)

1. a kind of method of quick calculating hydropower station amount, includes the following steps：
Step 1, the history in power station Fuzzy Period of Runoff Series for many years is chosen；
Step 2, it determines the reservoir operation mode in power station, that is, determines the non-period abandoned the water phase, abandon the water phase of reservoir；
Step 3, the reservoir operation mode for taking out storage to balance, determines that difference enters under a certain reservoir level according to Water-sodium disturbance formula The corresponding period generated energy E of library flow Q；
Step 4, according to the relationship of reservoir inflow Q and period generated energy E, maximum period generated energy E under a certain reservoir level is determinedmax Corresponding reservoir inflow range [Qm, Qn], wherein QmFor EmaxCorresponding minimum reservoir inflow, QnFor EmaxCorresponding maximum storage Flow；
Step 5, the relationship between reservoir inflow and period generated energy is established in segmentation, works as Q<QmWhen, it establishesWithBetween letter Number relationship, i.e.,Work as Q>QnWhen, it establishesWithBetween functional relation, i.e.,
Step 6, effective run-off W is calculated by ten daysi, the water phase is abandoned for non-, ten days effective run-off is calculated according to practical reservoir inflow Wi, i.e. Wi=Q*T；For abandoning the water phase, work as Q<QmWhen, ten days effective run-offWork as Qm≤Q≤QnWhen, ten days Effective run-off Wi=Q*T, works as Q>QnWhen, ten days effective run-offWherein T is the period in ten days；
Step 7, by each ten days WiIt is cumulative to obtain year effective run-off WYear；
Step 8, it is calculated and is sent out year by year using Water-sodium disturbance formula by ten days Fuzzy Period of Runoff Series and reservoir operation mode for many years according to history in year Electricity EYear；
Step 9, effective run-off that annual electricity generating capacity and step 7 that step 8 obtains obtain is fitted, obtains corresponding function Table is made convenient for looking into calculation in expression formula, final result.
2. the method for quick calculating hydropower station amount according to claim 1, it is characterised in that：The history is for many years Fuzzy Period of Runoff Series be power station 30 years or more day by day, by week, by ten days or month by month averagely reservoir inflow.
3. the method for quick calculating hydropower station amount according to claim 1, it is characterised in that：Ten days in step 6 has Effect run-off is alternatively day, week or the moon effective run-off, and corresponding T is the corresponding period.
4. claim 1 the method, it is characterised in that：Step 7 year effective run-off and corresponding time annual electricity generating capacity base The corresponding linear relationship of this presentation monodrome.
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CN108154268B (en) * 2017-12-25 2022-07-05 国网福建省电力有限公司 A method for quickly estimating the power generation of small hydropower stations
CN108764651A (en) * 2018-04-28 2018-11-06 昆明电力交易中心有限责任公司 A kind of probabilistic optimal transaction electricity method of estimation in power station month of consideration water
CN110991798B (en) * 2019-10-29 2023-05-23 广东工业大学 A Calculation Method of Utilization Rate of Power Generation Equipment in Small Hydropower Microgrid
CN113254878B (en) * 2021-05-19 2022-05-17 中国电建集团昆明勘测设计研究院有限公司 Method for judging water temperature structure of reservoir in hydraulic and hydroelectric engineering

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102298731A (en) * 2010-06-25 2011-12-28 华东电网有限公司 Cascade reservoir short-term electricity generation optimal dispatching method considering comprehensive requirements of tide stemming water supply
CN102855524A (en) * 2012-08-14 2013-01-02 贵州乌江水电开发有限责任公司 Carry-over storage year-end fluctuating level prediction method and system
CN104182807A (en) * 2014-08-21 2014-12-03 大连理工大学 Reservoir dispatching risk evaluation method by considering runoff forecast uncertainty

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102298731A (en) * 2010-06-25 2011-12-28 华东电网有限公司 Cascade reservoir short-term electricity generation optimal dispatching method considering comprehensive requirements of tide stemming water supply
CN102855524A (en) * 2012-08-14 2013-01-02 贵州乌江水电开发有限责任公司 Carry-over storage year-end fluctuating level prediction method and system
CN104182807A (en) * 2014-08-21 2014-12-03 大连理工大学 Reservoir dispatching risk evaluation method by considering runoff forecast uncertainty

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
Evaluation of optimization operation models for cascaded hydropower reservoirs to utilize medium range forecasting inflow;Wei Xu 等;《Science China Technological Sciences》;20131031;第56卷(第10期);第2540-2552页 *
Mini-hydro power generation on existing irrigation projects: Case study of Indian sites;S.P.Adhau 等;《Renewable and Sustainable Energy Reviews》;20120930;第16卷(第7期);第4785-4795页 *
引汉济渭工程对汉江干流水电站径流量和发电量影响的初步分;李万绪;《西北水电》;20121231;第2012年卷(第6期);第18-21页 *
径流式小水电站年发电量综合预测模型;吴德会;《水利水电技术》;20070920;第38卷(第9期);第78-80页 *

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