CN108493999A - The method and system of honourable resource complementation in a kind of assessment area - Google Patents
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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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 provides a kind of method and system of honourable resource complementation in assessment area, sequence is standardized by wind speed and ground accumulates irradiation and standardizes sequence, obtain the wind light mutual complementing intensity of each lattice point in region, region wind light mutual complementing intensity two-dimensional map is drawn out, to assess the wind light mutual complementing intensity distribution situation in the region.Wind, light variable are passed through standardization by the present invention, are formed new wind, light resource meteorological variables, by wind, light resource unified integration, have been fully considered the collaborative variation of wind-resources and light resource.Such a more abstract concept quantification of wind light mutual complementing is calculated and described, the resource map of wind light mutual complementing can be drawn out by this method simultaneously, assessment for honourable resource in certain area, the addressing in power station and new forms of energy resource proportioning regulation and control provide valuable reference frame.
Description
Technical field
The invention belongs to electricity generation system field, the method that especially relates to honourable resource complementation in a kind of assessment area
And system.
Background technology
Wind energy, solar energy are all unstable, the discontinuous energy, will be generated to power grid after large-scale grid connection very important
Impact.The characteristics of China is due to continental monsoon climate, wind energy and solar energy naturally have stronger mutual in the time and geographically
Benefit property --- when daytime, sunlight was most strong, wind is smaller, night, and illumination is very weak, but due to earth's surface difference variation is big and wind energy
Reinforce；In summer, the direct sunlight Northern Hemisphere, causes sunlight intensity big and monsoon is small, and in winter, although sunlight intensity
It is weak, but cause wind-force bigger than normal since the north and south temperature difference is larger.And the variation of wind, radiation is the important shadow that new energy power station production is contributed
The factor of sound.Therefore, wind, light resource characteristic are one of the important references factors in addressing stage before new energy power station is built.
Due to wind, light is different meteorological variables, the two differing greatly in unit, space-time, current honourable resource
Appraisal procedure mainly separately carries out the assessment of wind, light resource：For the assessment Main Analysis mean wind speed, flat of wind energy resources
Equal effective wind speed, average wind power concentration, average effective wind power concentration, wind energy concentration, effective wind energy density, gas-to electricity are small
When number, theoretical gas-to electricity hourage.And it weighs wind speed big/small wind year mainly monthly mean wind speed is for many years with wind power plant or region
Based on (generally 30 years) mean value, mean value, standard deviation are calculated, mean wind speed is more than being known as greatly for (being less than) 1 standard deviation
(small) wind and moon-scene；Mainly there are horizontal plane global radiation irradiation, photovoltaic array inclined surface global radiation irradiation for assessment solar energy resources
It is amount, the direct radiation amount of normal direction, horizontal plane global radiation year irradiation grade, horizontal plane solar energy resources stability grade, straight
It penetrates than grade, peak sunshine hours, gas-to electricity hourage.
Currently, " wind light mutual complementing " is more a kind of feature or characteristic proposed from wind energy, the angle of solar energy resources.In reality
In the application of border, the concept of " wind light mutual complementing " is more used for the design of some electricity generation system.With individual wind-power electricity generation or photovoltaic
Power generation is compared, and wind and solar hybrid generating system can make power output more steady, increases absorption of the power grid to the intermittent renewable energy
Receiving degree.Therefore, large-scale wind and solar hybrid generating system is that the promising one kind of renewable energy source electrode efficiently utilizes form.But
It is that, as new energy is grown rapidly in China, new energy installation accounting is gradually increasing, and traffic department is whole for regional new energy
Body output focuses more on.Therefore, for region wind energy, solar energy resources assessment for new energy station integral layout in region,
Addressing provides important reference basis.And it carries out region new energy station using the complementary relationship of two spike-type cultivars in region and integrally sets
Meter is more conducive to the stability of region new energy production power generation, is the danger that power grid is brought to reducing new energy itself fluctuation
Evil, promotes the development of new energy.
And the honourable resource analysis separately carried out as described above, although can find out that the overall distribution of honourable resource and history become
Rate, but cannot intuitively weigh the characteristic of the wind light mutual complementing resource in region.Meanwhile being mostly for wind-light complementary system research at present
Matching primitives, system optimization control etc. are optimized for some fixed wind-light complementary system, such analysis can not
Guidance carries out the addressing construction of wind-solar hybrid power station and can not assess the honourable resource complementation quality of different times.
Invention content
In view of this, the present invention proposes a kind of method and system of honourable resource complementation in assessment area, to establish wind
The addressing in light complementation power station and generated energy prediction provide guidance, to improve region new energy output stability and new-energy grid-connected
Safety lays the foundation.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of method of honourable resource complementation in assessment area, including：
(1) by the wind speed standardization sequence v of certain lattice point in region*With ground accumulation irradiation standardization sequence R*It is added, obtains
To the first wind light mutual complementing index of lattice point I：c1、c2、……、cn；
(2) the lattice point wind speed is standardized to the absolute value of sequence | v*| and the absolute value of irradiation standardization sequence | R*| phase
Add, obtains second of wind light mutual complementing index II of the lattice point：d1、d2、……、dn；
(3) the lattice point wind light mutual complementing is judged according to the first wind light mutual complementing index I and second of wind light mutual complementing index II
The stronger moment counts the stronger time segment length of wind light mutual complementing, defines the wind light mutual complementing intensity of the lattice point：
(4) step (1)-(3) are repeated, the wind light mutual complementing intensity of each lattice point is obtained, draws out region wind light mutual complementing intensity
Two-dimensional map, to assess the wind light mutual complementing intensity distribution situation in the region.
Further, the wind speed standardization sequence v of the lattice point*Standardized method be：
(101) the wind speed historical data of lattice point hub height is pre-processed, removes abnormal data value；
(102) to being standardized by pretreated wind speed, wind speed normalized temporal sequence v is obtained*： Standardized method is calculated according to following formula：
Wherein：vtFor the data in original series,For the average value of original series, s is the standard deviation of original series, and s is pressed
It is calculated according to following formula：
Further, the ground accumulation irradiation standardization sequence R of the lattice point*Standardized method be：
(201) lattice point ground accumulation irradiation historical data is pre-processed, removes abnormal data value；
(202) to being standardized by pretreated ground accumulation irradiation, ground accumulation irradiation is obtained
Normalized temporal sequence R*：Standardized method is calculated according to following formula：
Wherein：RtFor the data in original series,For the average value of original series, σ is the standard deviation of original series, σ
It is calculated according to following formula：
Further, step (3) is described judges that the method at lattice point wind light mutual complementing stronger moment is：
For i-th of moment, if meeting the first wind light mutual complementing index ciIn ± 1 times of standard deviation, and meet second
Wind light mutual complementing index diOtherwise more than 2 times standard deviations, then the wind light mutual complementing of the i moment lattice point is stronger, if being unsatisfactory for take up an official post
How a kind of condition then illustrates that the moment wind light mutual complementing is weaker.
Further, the wind light mutual complementing strength definition of step (3) described lattice point is：Wind light mutual complementing intensity=wind light mutual complementing
Stronger time span/total time length.
Another aspect of the present invention, it is also proposed that the system of honourable resource complementation in a kind of assessment area, including：
The first wind light mutual complementing index module, for the wind speed of certain lattice point in region to be standardized sequence v*It is accumulated with ground
Irradiation standardizes sequence R*It is added, obtains the first wind light mutual complementing index of lattice point I：c1、c2、……、cn；
Second of wind light mutual complementing index module, the absolute value for the lattice point wind speed to be standardized to sequence | v*| and irradiation
Standardize the absolute value of sequence | R*| it is added, obtains second of wind light mutual complementing index II of the lattice point：d1、d2、……、dn；
Judgment module, for judging the lattice point according to the first wind light mutual complementing index I and second of wind light mutual complementing index II
The wind light mutual complementing stronger moment；
Wind light mutual complementing intensity module defines the scene of the lattice point for counting the stronger time segment length of wind light mutual complementing
Complementary strengths：
Drafting module, for passing through the first wind light mutual complementing index module, second of wind light mutual complementing index module, judging mould
Block, wind light mutual complementing intensity module obtain the wind light mutual complementing intensity of each lattice point, draw out region wind light mutual complementing intensity two-dimensional map,
To assess the wind light mutual complementing intensity distribution situation in the region.
Further, further include wind speed standardized module, carried out for the wind speed historical data to lattice point hub height pre-
Abnormal data value is removed in processing；To being standardized by pretreated wind speed, wind speed normalized temporal sequence is obtained
v*：
Further, further include ground accumulation irradiation standardized module, for accumulating irradiation history to lattice point ground
Data are pre-processed, and abnormal data value is removed；To being standardized by pretreated ground accumulation irradiation, obtain
Irradiation normalized temporal sequence R is accumulated to ground*：
Further, the judgment module includes：
The first wind light mutual complementing index judging submodule, for judging i-th of moment, the first wind light mutual complementing index ciIt is
It is no in ± 1 times of standard deviation；
Second of wind light mutual complementing index judging submodule, for judging i-th of moment, second of wind light mutual complementing index diIt is
It is no to be more than 2 times of standard deviations.
Further, the wind light mutual complementing intensity module includes computational submodule, for according to wind light mutual complementing strength formula
It is calculated, formula is：The stronger time span of wind light mutual complementing intensity=wind light mutual complementing/total time length.
Compared with the existing technology, in a kind of assessment area of the present invention there is the method and system of honourable resource complementation
Beneficial effect is：
Wind, light variable are passed through standardization by the present invention, are rationally quantified to the variation of history wind, light resource, group
Wind, light resource unified integration have been fully considered that the collaboration of wind-resources and light resource becomes by the wind of Cheng Xin, light resource meteorological variables
The property changed.By such a more abstract concept of wind light mutual complementing, from two spike-type cultivars Self-variation amplitude and correlation, group
The variable of Cheng Xin carries out quantitative analysis, to more intuitively go out the complementary characteristic of honourable resource.It can pass through the party simultaneously
Method draws out the resource map of wind light mutual complementing, the assessment for honourable resource in certain area, the addressing in power station and new energy
Source resource proportioning regulation and control provide valuable reference frame.
Description of the drawings
Fig. 1 is the flow diagram of the present invention；
Fig. 2 is the time series schematic diagram of the single lattice point wind light mutual complementing index I of the embodiment of the present invention；
Fig. 3 is the time series schematic diagram of the single lattice point wind light mutual complementing index II of the embodiment of the present invention；
Fig. 4 is the wind light mutual complementing intensity collection of illustrative plates of the somewhere 1987-2016 of the embodiment of the present invention.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in the embodiment of the present invention and embodiment can be mutual
Combination.
As shown in Figure 1, the specific method of the present invention is：
1) to the wind speed of lattice point hub height, ground accumulation irradiation data are pre-processed, and abnormal data value (packet is removed
Include abnormal sizes values, continuous constant value, Sudden Anomalies point etc.).
2) to being standardized by pretreated wind speed, wind speed normalized temporal sequence v is obtained*： Standardized method is calculated according to following formula：
Wherein：vtFor the data in original series,For the average value of original series, s is the standard deviation of original series, and s is pressed
It is calculated according to following formula：
3) similar step 2 obtain ground irradiation to being standardized by pretreated ground accumulation irradiation
Measure normalized temporal sequence R*：
Standardized method is calculated according to following formula：
Wherein：RtFor the data in original series,For the average value of original series, σ is the standard deviation of original series, and σ is pressed
It is calculated according to following formula：
4) by the wind speed of corresponding lattice point standardization sequence v*With ground accumulation irradiation standardization sequence R*It is added, obtains the
A kind of wind light mutual complementing index I：c1、c2、……、cn。
5) corresponding lattice point wind speed is standardized to the absolute value of sequence | v*| and the absolute value of irradiation standardization sequence | R*| phase
Add, obtains second of wind light mutual complementing index II：d1、d2、……、dn。
6) for i-th of moment, if meeting the first wind light mutual complementing index (ci) in ± 1 times of standard deviation, and meet the
Two kinds of wind light mutual complementing index (di) being more than 2 times of standard deviations, then otherwise the wind light mutual complementing of the i times lattice point is stronger, if being unsatisfactory for
Any of the above condition then illustrates that the moment wind light mutual complementing is weaker.
7) the stronger time segment length of wind light mutual complementing is counted, the wind light mutual complementing intensity of lattice point is defined：
The stronger time span of wind light mutual complementing intensity=wind light mutual complementing/total time length
Wind light mutual complementing intensity is the index for the wind light mutual complementing power for weighing each lattice point, and the index value is bigger, illustrates the lattice
The wind light mutual complementing duration of point is longer, shows that the honourable resource complementation on the ground is stronger.
8) according to the wind light mutual complementing intensity of each grid computing, region wind light mutual complementing intensity two-dimensional map is drawn out, to comment
Estimate the wind light mutual complementing intensity distribution situation in the region.
By taking the honourable resource complementation in somewhere assessment as an example, using European numerical forecast center (ECMWF) monthly average again
Analysis of data, the wind speed and irradiance data for choosing on December 1,1 day~2016 January in 1987 are analyzed.
The data of wind speed and irradiation level are standardized first.Again by standardized wind speed and irradiance data phase
Add, obtains the first wind light mutual complementing index I.By taking wherein 1 lattice point as an example, the wind light mutual complementing index drawn out is as shown in Figure 2.
The absolute value of standardized wind speed is added with irradiation level absolute value later, obtains second of wind light mutual complementing index
II is drawn as shown in Figure 3.
By two kinds of wind light mutual complementing indexes, chooses and 1) meet wind light mutual complementing index I within 1 times of standard deviation simultaneously, 2) wind
Light complementation index II>The month of 2 times of standard deviations, the month for obtaining meeting condition have：In July, 1987, in August, 1987,1988 9
Month, in October, 1988,2 months 1989, in May, 1989, in May, 1997, in June, 1998, in October, 1998 and in July, 2006,
Meet within 10 totally months two above condition.Due to 30 years 360 totally months in total, the wind light mutual complementing intensity of the lattice point is 10/
360=0.027.
All lattice points in this area are passed through into calculating as above, -2016 years 1987 scene money in this area can be drawn out
Source complementary strengths collection of illustrative plates, as shown in Figure 4.
The foregoing describe the information such as the basic principles and main features of the present invention and embodiment, but the present invention is not by upper
The limitation for stating implementation process, under the premise of not departing from spirit and range, the present invention can also have various changes and modifications.
Therefore, unless this changes and improvements are departing from the scope of the present invention, they should be counted as comprising in the present invention.
Claims (10)
1. a kind of method of honourable resource complementation in assessment area, which is characterized in that including：
(1) by the wind speed standardization sequence v of certain lattice point in region*With ground accumulation irradiation standardization sequence R*It is added, is somebody's turn to do
The first wind light mutual complementing index of lattice point I：c1、c2、……、cn；
(2) the lattice point wind speed is standardized to the absolute value of sequence | v*| and the absolute value of irradiation standardization sequence | R*| it is added, obtains
To second of wind light mutual complementing index II of the lattice point：d1、d2、……、dn；
(3) judge that the lattice point wind light mutual complementing is stronger according to the first wind light mutual complementing index I and second of wind light mutual complementing index II
At the time of, the stronger time segment length of wind light mutual complementing is counted, the wind light mutual complementing intensity of the lattice point is defined：
(4) step (1)-(3) are repeated, the wind light mutual complementing intensity of each lattice point is obtained, draw out region wind light mutual complementing intensity two dimension
Collection of illustrative plates, to assess the wind light mutual complementing intensity distribution situation in the region.
2. the method for honourable resource complementation in a kind of assessment area as described in claim 1, which is characterized in that the lattice point
Wind speed standardization sequence v*Standardized method be：
(101) the wind speed historical data of lattice point hub height is pre-processed, removes abnormal data value；
(102) to being standardized by pretreated wind speed, wind speed normalized temporal sequence v is obtained*： Standardized method is calculated according to following formula：
Wherein：vtFor the data in original series,For the average value of original series, s is the standard deviation of original series, and s is according to such as
Lower formula calculates：
3. the method for honourable resource complementation in a kind of assessment area as described in claim 1, which is characterized in that the lattice point
Ground accumulation irradiation standardization sequence R*Standardized method be：
(201) lattice point ground accumulation irradiation historical data is pre-processed, removes abnormal data value；
(202) to being standardized by pretreated ground accumulation irradiation, ground accumulation irradiation standard is obtained
Change time series R*：Standardized method is calculated according to following formula：
Wherein：RtFor the data in original series,For the average value of original series, σ are the standard deviation of original series, σ according to
Following formula calculates：
4. the method for honourable resource complementation in a kind of assessment area as described in claim 1, which is characterized in that step (3)
It is described to judge that the method at lattice point wind light mutual complementing stronger moment is：
For i-th of moment, if meeting the first wind light mutual complementing index ciIn ± 1 times of standard deviation, and meet second of scene mutually
Mend index diOtherwise more than 2 times standard deviations, then the wind light mutual complementing of the i moment lattice point is stronger, if being unsatisfactory for any of the above
Condition then illustrates that the moment wind light mutual complementing is weaker.
5. the method for honourable resource complementation in a kind of assessment area as described in claim 1, which is characterized in that step (3)
The wind light mutual complementing strength definition of the lattice point is：The stronger time span of wind light mutual complementing intensity=wind light mutual complementing/total time length.
6. the system of honourable resource complementation in a kind of assessment area, which is characterized in that including：
The first wind light mutual complementing index module, for the wind speed of certain lattice point in region to be standardized sequence v*It accumulates and irradiates with ground
Amount standardization sequence R*It is added, obtains the first wind light mutual complementing index of lattice point I：c1、c2、……、cn；
Second of wind light mutual complementing index module, the absolute value for the lattice point wind speed to be standardized to sequence | v*| and irradiation standard
Change the absolute value of sequence | R*| it is added, obtains second of wind light mutual complementing index II of the lattice point：d1、d2、……、dn；
Judgment module, for judging lattice point scene according to the first wind light mutual complementing index I and second of wind light mutual complementing index II
The complementary stronger moment；
Wind light mutual complementing intensity module defines the wind light mutual complementing of the lattice point for counting the stronger time segment length of wind light mutual complementing
Intensity：
Drafting module, for by the first wind light mutual complementing index module, second of wind light mutual complementing index module, judgment module,
Wind light mutual complementing intensity module obtains the wind light mutual complementing intensity of each lattice point, draws out region wind light mutual complementing intensity two-dimensional map, with
Assess the wind light mutual complementing intensity distribution situation in the region.
7. the system of honourable resource complementation in a kind of assessment area according to claim 6, which is characterized in that further include
Wind speed standardized module is pre-processed for the wind speed historical data to lattice point hub height, removes abnormal data value；To warp
It crosses pretreated wind speed to be standardized, obtains wind speed normalized temporal sequence v*：
8. the system of honourable resource complementation in a kind of assessment area according to claim 6, which is characterized in that further include
Irradiation standardized module is accumulated on ground, for being pre-processed to lattice point ground accumulation irradiation historical data, is removed abnormal
Data value；To being standardized by pretreated ground accumulation irradiation, ground accumulation irradiation standardization is obtained
Time series R*：
9. the system of honourable resource complementation in a kind of assessment area according to claim 6, which is characterized in that described to sentence
Disconnected module includes：
The first wind light mutual complementing index judging submodule, for judging i-th of moment, the first wind light mutual complementing index ciWhether
In ± 1 times of standard deviation；
Second of wind light mutual complementing index judging submodule, for judging i-th of moment, second of wind light mutual complementing index diIt is whether big
In 2 times of standard deviations.
10. the system of honourable resource complementation in a kind of assessment area according to claim 6, which is characterized in that described
Wind light mutual complementing intensity module includes computational submodule, and for being calculated according to wind light mutual complementing strength formula, formula is：It is honourable mutual
The stronger time span of reinforcement degree=wind light mutual complementing/total time length.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114997753A (en) * | 2022-08-03 | 2022-09-02 | 中国科学院地理科学与资源研究所 | Complementary power generation potential evaluation method and system considering attributes of wind and light resources |
| CN114997753B (en) * | 2022-08-03 | 2022-10-14 | 中国科学院地理科学与资源研究所 | Complementary power generation potential evaluation method and system considering attributes of wind and light resources |
| CN115600791A (en) * | 2022-09-07 | 2023-01-13 | 华北电力大学（Cn） | Wind energy and solar energy complementarity assessment method and system |
| CN115600791B (en) * | 2022-09-07 | 2024-01-05 | 华北电力大学 | Wind energy and solar energy complementarity evaluation method and system |
| CN115577857A (en) * | 2022-11-15 | 2023-01-06 | 南方电网数字电网研究院有限公司 | Energy system output data prediction method and device and computer equipment |
| CN115577857B (en) * | 2022-11-15 | 2023-04-28 | 南方电网数字电网研究院有限公司 | Method and device for predicting output data of energy system and computer equipment |
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