CN104573156A - Method and device for calculating total scale and grouping module scale of seawater desalination project - Google Patents
Method and device for calculating total scale and grouping module scale of seawater desalination project Download PDFInfo
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- CN104573156A CN104573156A CN201310504016.1A CN201310504016A CN104573156A CN 104573156 A CN104573156 A CN 104573156A CN 201310504016 A CN201310504016 A CN 201310504016A CN 104573156 A CN104573156 A CN 104573156A
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Abstract
The invention provides a method and a device for calculating total scale and grouping module scale of a seawater desalination project, and belongs to the field of wind power and seawater desalination coupling systems. The method is used for a wind power and seawater desalination coupling system and comprises the following steps of acquiring a wind power generation accumulative frequency distribution and a wind power generation accumulative frequency distribution curve; determining the total scale of the seawater desalination project according to the wind power generation accumulative frequency distribution curve; modularly grouping the seawater desalination project according to the wind power generation accumulative frequency distribution curve and the total scale of the seawater desalination project; and optimizing the grouping module scale after the seawater desalination project is grouped modularly. By the seawater desalination water making scale, the load of a seawater desalination system can be changed immediately along with change of wind power generation, and the power consumption of the seawater desalination system is matched with wind power generation amount.
Description
Technical field
The present invention relates to wind-powered electricity generation-desalinization coupled system field, refer to a kind of desalinization total scale and grouping module scale computing method and device especially.
Background technology
Wind energy is a kind of good regenerative resource, and wind-power electricity generation is the topmost mode of current Wind Power Utilization.According to International Energy Agency relevant report, ended for the end of the year 2011, global wind-power electricity generation installed capacity is increased to about 238GW from the 18GW in the end of the year 2000, and wherein only installed capacity in 2011 increases nearly 41GW.The power generation installed capacity of China in 2010 exceedes the U.S., becomes the country that wind-power electricity generation installation total volume is maximum.But due to the undulatory property of wind-powered electricity generation, intermittence and instability, in Wind Power Development process, grid-connected, the problem such as to dissolve of electric power progressively highlights, therefore, exploitation wind-power electricity generation user holds market, realizes one of effective way that user side is generated power for their own use, on-site elimination becomes the utilization of solution wind-powered electricity generation and dissolve.
On the other hand, China's wind resource coastal and Island of enriching is also is mostly areas of scarcity of fresh water resources.Seawater is the unconventional water resource that a class is abundant.Desalinization is one of important channel of unconventional water resources development and utilization, is conducive to the problem alleviating shortage of water resources.
By coupling wind energy and desalination treatment system, regenerative resource can be converted into freshwater resources in short supply efficiently, namely the local use of regenerative resource is achieved, solve wind-electricity integration difficulty, problem that utilization factor is low well, also achieve water-deficient area with regard to real estate water, water resource can be alleviated to a certain extent and lack.
It can be sea water desalinating unit continuous and steady operation that the undulatory property of wind-power electricity generation causes relying on merely blower fan to generate electricity, thus affects service efficiency and the equipment life of sea water desalinating unit.Therefore, if seawater desalination system load can change immediately along with the change of wind-power electricity generation, so the utilization factor of wind-powered electricity generation just can improve thereupon.
Meanwhile, due to the stochastic volatility of each department wind speed, wind-power electricity generation power is made to have larger fluctuation with wind speed.For on Ghana of Spain Li Dao from net type blower fan power generation characteristics, after wind speed reaches threshold wind velocity 3m/s, wind speed remains within the scope of 3 ~ 8m/s, and after fan starting 28min, blower fan can make generated output reach and be stabilized in 50 ± 1Hz by its built-in flywheel.In this start-up course, the upper and lower fluctuating range of blower fan generated output is within the scope of 0 ~ 38KW.When reaching stable operation after fan starting, blower fan generated output and blower fan generate electricity rotor operation length velocity relation closely, and electric power variation range is 30 ~ 80KW, and amplitude of variation is larger.Therefore, adjustment desalinization water scale, making it power consumption adaptation wind power generation capacity is one of required key issue solved of wind-powered electricity generation-desalinization coupled system.
But current wind-powered electricity generation-desalinization coupled system engineering design and implementation, still in the starting stage, cannot realize seawater desalination system load and can immediately change and make it power consumption adaptation wind power generation capacity along with the change of wind-power electricity generation.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of Seawater Desalination Project total scale and grouping module scale computing method and device, by adjustment desalinization water scale, realize seawater desalination system load and can immediately change and make it power consumption adaptation wind power generation capacity along with the change of wind-power electricity generation.
For achieving the above object, embodiments of the invention provide a kind of Seawater Desalination Project total scale and grouping module scale computing method, are applied to wind-powered electricity generation-desalinization coupled system, comprise the following steps:
Obtain wind power generation cumulative frequency distribution and wind power generation cumulative frequency distribution curve;
According to described wind power generation cumulative frequency distribution curve, determine Seawater Desalination Project total scale;
According to described wind power generation cumulative frequency distribution curve and described Seawater Desalination Project total scale, Seawater Desalination Project is carried out modularization grouping;
Grouping module scale after Seawater Desalination Project carries out modularization grouping is optimized.
Wherein, the step obtaining wind power generation cumulative frequency distribution and wind power generation cumulative frequency distribution curve comprises:
The wind data of acquisition or wind power data are calculated and is converted into wind power occurrence frequency;
Described wind power occurrence frequency is calculated and is converted into the distribution of wind power generation cumulative frequency, and S type curve acquisition wind power generation cumulative frequency distribution curve is carried out to wind power generation cumulative probability.
Wherein, comprise according to the step of described wind power generation cumulative frequency distribution curve determination Seawater Desalination Project total scale:
According to described wind power generation cumulative frequency distribution curve, determine the wind-power electricity generation power that cumulative frequency is corresponding when first threshold scope;
Using described wind-power electricity generation power as the available electric power of Seawater Desalination Project, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, obtain the first Seawater Desalination Project total scale;
According to the estimation of engineering experience formula, obtain the second Seawater Desalination Project total scale;
More described first Seawater Desalination Project total scale and described second Seawater Desalination Project total scale, get smaller value as Seawater Desalination Project total scale.
Wherein, described engineering experience formula is exponential formula, and index parameters span is 0.8 ~ 1.2.
Wherein, described index parameters span is 1.0 ~ 1.05.
Wherein, described index parameters value is 1.016.
Wherein, described first threshold scope is 10% ~ 30%.
Wherein, according to described wind power generation cumulative frequency distribution curve and described Seawater Desalination Project total scale, the step that Seawater Desalination Project carries out modularization grouping is comprised:
According to described wind power generation cumulative frequency distribution curve, determine that cumulative frequency is greater than the wind-power electricity generation power corresponding to Second Threshold, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, obtain the smallest size of module, carry out modularization grouping; Or
According to described wind power generation cumulative frequency distribution curve, determine the wind-power electricity generation power of cumulative frequency corresponding to the 3rd threshold value, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, the module scale of acquisition, as each module scale, carries out modularization grouping.
Wherein, the grouping module scale summation after described modularization grouping is not more than Seawater Desalination Project total scale.
Wherein, described Second Threshold is the 80%, three threshold value is 50%.
Wherein, the step that the grouping module scale after Seawater Desalination Project carries out modularization grouping is optimized is comprised:
By linear function requirement, namely produce water scale=f
max, f (x
i)=Σ x
i≤ x
t, financial cost=g
min, g (x
i)=Σ B
i+ Σ h (x
i), obtain Seawater Desalination Project grouping module design and establishing;
Wherein, x
ifor module grouping scale, B
ifor the equipment cost corresponding to each module scale, h (x
i) energy storage device cost needed for each module scale.
The embodiment of the present invention provides a kind of Seawater Desalination Project total scale and grouping module scale calculation element, is applied to wind-powered electricity generation-desalinization coupled system, comprises:
First obtains module, for obtaining the distribution of wind power generation cumulative frequency and wind power generation cumulative frequency distribution curve;
Total scale determination module, for according to described wind power generation cumulative frequency distribution curve, determines Seawater Desalination Project total scale;
Grouping module, for according to described wind power generation cumulative frequency distribution and described Seawater Desalination Project total scale, carries out modularization grouping by Seawater Desalination Project;
Optimize module, be optimized for the grouping module scale after carrying out modularization grouping to Seawater Desalination Project.
Wherein, described first acquisition module comprises:
First obtains submodule, is converted into wind power occurrence frequency for the wind data of acquisition or wind power data being calculated;
Second obtains submodule, is converted into the distribution of wind power generation cumulative frequency for being calculated by described wind power occurrence frequency, and carries out S type curve acquisition wind power generation cumulative frequency distribution curve to wind power generation cumulative probability.
Wherein, described total scale determination module comprises:
Wind-power electricity generation power confirms module, for according to described wind power generation cumulative frequency distribution curve, determines the wind-power electricity generation power that cumulative frequency is corresponding when first threshold scope;
3rd obtain submodule, for using described wind-power electricity generation power as the available electric power of Seawater Desalination Project, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, obtain the first Seawater Desalination Project total scale;
4th obtains submodule, for according to the estimation of engineering experience formula, obtains the second Seawater Desalination Project total scale;
Comparison module, for more described first Seawater Desalination Project total scale and described second Seawater Desalination Project total scale, gets smaller value as Seawater Desalination Project total scale.
Wherein, described engineering experience formula is exponential formula, and index parameters span is 0.8 ~ 1.2.
Wherein, described index parameters span is 1.0 ~ 1.05.
Wherein, described index parameters value is 1.016.
Wherein, described first threshold scope is 10% ~ 30%.
Wherein, described grouping module comprises:
First grouping submodule, for according to described wind power generation cumulative frequency distribution curve, determine that cumulative frequency is greater than the wind-power electricity generation power corresponding to Second Threshold, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, obtain the smallest size of module, carry out modularization grouping; Or
Second grouping submodule, for according to described wind power generation cumulative frequency distribution curve, determine the wind-power electricity generation power of cumulative frequency corresponding to the 3rd threshold value, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, the module scale obtained, as each module scale, carries out modularization grouping.
Wherein, the grouping module scale summation after described modularization grouping is not more than Seawater Desalination Project total scale.
Wherein, described Second Threshold is the 80%, three threshold value is 50%.
Wherein, described optimization module comprises:
Optimize submodule, for by linear function requirement, namely produce water scale=f
max, f (x
i)=Σ x
i≤ x
t, financial cost=g
min, g (x
i)=Σ B
i+ Σ h (x
i), obtain Seawater Desalination Project grouping module design and establishing;
Wherein, x
ifor module grouping scale, B
ifor the equipment cost corresponding to each module scale, h (x
i) energy storage device cost needed for each module scale.
The beneficial effect of technique scheme of the present invention is as follows:
The embodiment of the present invention, Seawater Desalination Project total scale and grouping module scale computing method, first by step 1, obtain wind power generation cumulative frequency distribution and wind power generation cumulative frequency distribution curve; Then by step 2, according to described wind power generation cumulative frequency distribution curve, Seawater Desalination Project total scale is determined; Step 3, according to described wind power generation cumulative frequency distribution curve and described Seawater Desalination Project total scale, carries out modularization grouping by Seawater Desalination Project; Finally, step 4, is optimized the grouping module scale after Seawater Desalination Project carries out modularization grouping.Wind-powered electricity generation-desalinization coupled system finally can obtain rational Seawater Desalination Project grouping module design and construction in wind-powered electricity generation-desalinization coupled system, meeting under wind-powered electricity generation-desalinization coupled system always produces the as far as possible large prerequisite of water scale, overall desalination process equipment cost and wind-powered electricity generation energy storage device cost after reasonable reduction grouping, realize system loading and can immediately change and make it power consumption adaptation wind power generation capacity along with the change of wind-power electricity generation.
Accompanying drawing explanation
Fig. 1 is the Seawater Desalination Project total scale of the embodiment of the present invention and the step schematic diagram of grouping module scale computing method;
Fig. 2 is the Seawater Desalination Project total scale of the embodiment of the present invention and the module diagram of grouping module scale calculation element;
Fig. 3 is reverse osmosis seawater desalting engineering module packet mode one in wind-powered electricity generation-desalinization coupled system;
Fig. 4 is reverse osmosis seawater desalting engineering module packet mode two in wind-powered electricity generation-desalinization coupled system.
Description of reference numerals
P1, P2, P3: water is produced in infiltration; C1, C2, C3: condensed water.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The present invention is directed to existing wind-powered electricity generation-desalinization coupled system and cannot realize seawater desalination system load can change and make it power consumption adaptation wind power generation capacity immediately problem along with the change of wind-power electricity generation, a kind of Seawater Desalination Project total scale and grouping module scale computing method are provided.
As shown in Figure 1, the Seawater Desalination Project total scale of embodiments of the invention and grouping module scale computing method, be applied to wind-powered electricity generation-desalinization coupled system, comprise the following steps:
1, obtain wind power generation cumulative frequency distribution and wind power generation cumulative frequency distribution curve;
2, according to described wind power generation cumulative frequency distribution curve, determine Seawater Desalination Project total scale;
3, according to described wind power generation cumulative frequency distribution curve and described Seawater Desalination Project total scale, Seawater Desalination Project is carried out modularization grouping;
4, the grouping module scale after Seawater Desalination Project carries out modularization grouping is optimized.
By step 1,2,3,4, wind-powered electricity generation-desalinization coupled system finally can obtain rational Seawater Desalination Project grouping module design and construction in wind-powered electricity generation-desalinization coupled system, meeting under wind-powered electricity generation-desalinization coupled system always produces the as far as possible large prerequisite of water scale, rationally reducing overall desalination process equipment cost and wind-powered electricity generation energy storage device cost after grouping, realizing system loading and can immediately change and make it power consumption along with the change of wind-power electricity generation and adapt to wind power generation capacity.
The Seawater Desalination Project total scale of another embodiment of the present invention and grouping module scale computing method, above-mentioned be embodiment basis on, step 1, obtains the distribution of wind power generation cumulative frequency and wind power generation cumulative frequency distribution curve, comprising:
11, the wind data of acquisition or wind power data are calculated and is converted into wind power occurrence frequency;
12, described wind power occurrence frequency is calculated and is converted into the distribution of wind power generation cumulative frequency, and S type curve acquisition wind power generation cumulative frequency distribution curve is carried out to wind power generation cumulative probability.
By step 11 and step 12, the wind data of acquisition or wind power data are calculated and is converted into wind power occurrence frequency, and then calculating is converted into the distribution of wind power generation cumulative frequency, and S type curve acquisition wind power generation cumulative frequency distribution curve is carried out to wind power generation cumulative probability.The wind power generation cumulative frequency distribution curve of final acquisition is used in the acquisition of Seawater Desalination Project total scale and Seawater Desalination Project grouping module scale.
The Seawater Desalination Project total scale of another embodiment of the present invention and grouping module scale computing method, above-mentioned be embodiment basis on, step 2, described wind power generation cumulative frequency distribution curve determination Seawater Desalination Project total scale, comprising:
21, according to described wind power generation cumulative frequency distribution curve, determine the wind-power electricity generation power that cumulative frequency is corresponding when first threshold scope;
22, using described wind-power electricity generation power as the available electric power of Seawater Desalination Project, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, obtain the first Seawater Desalination Project total scale;
23, according to the estimation of engineering experience formula, obtain the second Seawater Desalination Project total scale;
24, more described first Seawater Desalination Project total scale and described second Seawater Desalination Project total scale, get smaller value as Seawater Desalination Project total scale.
Wherein, described engineering experience formula is exponential formula, and index parameters span is 0.8 ~ 1.2.
Wherein, described index parameters span is 1.0 ~ 1.05.
Wherein, described index parameters value is 1.016.
Wherein, described first threshold scope is 10% ~ 30%.
In coupled system, Seawater Desalination Project total scale is estimated by engineering experience formula and wind power generation cumulative frequency distribution curve is determined jointly.Due to Seawater Desalination Project total scale and the grouping module scale computing method of the embodiment of the present invention, desalination process adopts reverse osmosis process, so engineering experience formula is as follows:
Water production rate (m
3/ d)=blower fan rated power (KW)
k, be exponential formula, obtain the second Seawater Desalination Project total scale.Wherein k is parameter, and scope is 0.8 ~ 1.2.Accurately, described index parameters span is 1.0 ~ 1.05.By experiment, preferred described index parameters value is 1.016.
And by wind power generation cumulative frequency distribution curve, determine the wind-power electricity generation power that cumulative frequency is corresponding when first threshold scope, using this wind-power electricity generation power as the available electric power of Seawater Desalination Project, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, obtain the first Seawater Desalination Project total scale.Determine through experiment, described first threshold scope is 10% ~ 30%.
Second Seawater Desalination Project total scale is compared with the first Seawater Desalination Project total scale, gets the reverse osmosis seawater desalting engineering total scale of smaller value as wind-powered electricity generation-desalinization coupled system.
After acquisition Seawater Desalination Project total scale, modularization grouping will be carried out.The Seawater Desalination Project total scale of this another embodiment bright and grouping module scale computing method, above-mentioned be embodiment basis on, step 3, according to described wind power generation cumulative frequency distribution curve and described Seawater Desalination Project total scale, Seawater Desalination Project is carried out modularization grouping, comprising:
According to described wind power generation cumulative frequency distribution curve, determine that cumulative frequency is greater than the wind-power electricity generation power corresponding to Second Threshold, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, obtain the smallest size of module, carry out modularization grouping; Or
According to described wind power generation cumulative frequency distribution curve, determine the wind-power electricity generation power of cumulative frequency corresponding to the 3rd threshold value, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, the module scale of acquisition, as each module scale, carries out modularization grouping.
Module grouping has two kinds of modes as can be seen here.Mode one, as shown in Figure 2, smallest size is determined by wind power accumulation curve of frequency distribution, namely determine that cumulative frequency is greater than the wind-power electricity generation power corresponding to Second Threshold, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, obtain the smallest size of module, carry out modularization grouping.Mode two, as shown in Figure 3, according to described wind power generation cumulative frequency distribution curve, the wind-power electricity generation power of cumulative frequency corresponding to the 3rd threshold value is determined, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, the module scale of acquisition is as each module scale.P1, P2, P3 in Fig. 2, Fig. 3 are that water is produced in infiltration.C1, C2, C3 are concentrated product water.
Wherein, the grouping module scale summation after described modularization grouping is not more than Seawater Desalination Project total scale.
Wherein, by experiment, preferred described Second Threshold is the 80%, three threshold value is 50%.
Finally, grouping module scale is optimized.The Seawater Desalination Project total scale of another embodiment of the present invention and grouping module scale computing method, on the basis of above-described embodiment, step 4, is optimized the grouping module scale after Seawater Desalination Project carries out modularization grouping, comprising:
By linear function requirement, namely produce water scale=f
max, f (x
i)=Σ x
i≤ x
t, financial cost=g
min, g (x
i)=Σ B
i+ Σ h (x
i), obtain Seawater Desalination Project grouping module design and establishing;
Wherein, x
ifor module grouping scale, B
ifor the equipment cost corresponding to each module scale, h (x
i) energy storage device cost needed for each module scale.
In wind-powered electricity generation-desalinization coupled system, wind power can not completely for desalination process, wind power need be utilized as much as possible, meeting under wind-powered electricity generation-desalinization coupled system always produces the as far as possible large prerequisite of water scale, rationally reducing overall desalination process equipment cost and wind-powered electricity generation energy storage device cost after grouping.By linear function requirement, namely produce water scale=f
max, f (x
i)=Σ x
i≤ x
t, financial cost=g
min, g (x
i)=Σ B
i+ Σ h (x
i), obtain Seawater Desalination Project grouping module design and establishing; Wherein, x
ifor module grouping scale, B
ifor the equipment cost corresponding to each module scale, h (x
i) energy storage device cost needed for each module scale.By grouping module scale optimization, obtain rational Seawater Desalination Project grouping module design and construction in wind-powered electricity generation-desalinization coupled system.
The embodiment of the present invention also provides a kind of Seawater Desalination Project total scale and grouping module scale calculation element, as shown in Figure 4, is applied to wind-powered electricity generation-desalinization coupled system, comprises:
First obtains module, for obtaining the distribution of wind power generation cumulative frequency and wind power generation cumulative frequency distribution curve;
Total scale determination module, for according to described wind power generation cumulative frequency distribution curve, determines Seawater Desalination Project total scale;
Grouping module, for according to described wind power generation cumulative frequency distribution and described Seawater Desalination Project total scale, carries out modularization grouping by Seawater Desalination Project;
Optimize module, be optimized for the grouping module scale after carrying out modularization grouping to Seawater Desalination Project.
Wherein, described first acquisition module comprises:
First obtains submodule, is converted into wind power occurrence frequency for the wind data of acquisition or wind power data being calculated;
Second obtains submodule, is converted into the distribution of wind power generation cumulative frequency for being calculated by described wind power occurrence frequency, and carries out S type curve acquisition wind power generation cumulative frequency distribution curve to wind power generation cumulative probability.
Wherein, described total scale determination module comprises:
Wind-power electricity generation power confirms module, for according to described wind power generation cumulative frequency distribution curve, determines the wind-power electricity generation power that cumulative frequency is corresponding when first threshold scope;
3rd obtain submodule, for using described wind-power electricity generation power as the available electric power of Seawater Desalination Project, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, obtain the first Seawater Desalination Project total scale;
4th obtains submodule, for according to the estimation of engineering experience formula, obtains the second Seawater Desalination Project total scale;
Comparison module, for more described first Seawater Desalination Project total scale and described second Seawater Desalination Project total scale, gets smaller value as Seawater Desalination Project total scale.
Wherein, described engineering experience formula is exponential formula, and index parameters span is 0.8 ~ 1.2.
Wherein, described index parameters span is 1.0 ~ 1.05.
Wherein, described index parameters value is 1.016.
Wherein, described first threshold scope is 10% ~ 30%.
Wherein, described grouping module comprises:
First grouping submodule, for according to described wind power generation cumulative frequency distribution curve, determine that cumulative frequency is greater than the wind-power electricity generation power corresponding to Second Threshold, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, obtain the smallest size of module, carry out modularization grouping; Or
Second grouping submodule, for according to described wind power generation cumulative frequency distribution curve, determine the wind-power electricity generation power of cumulative frequency corresponding to the 3rd threshold value, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, the module scale obtained, as each module scale, carries out modularization grouping.
Wherein, the grouping module scale summation after described modularization grouping is not more than Seawater Desalination Project total scale.
Wherein, described Second Threshold is the 80%, three threshold value is 50%.
Wherein, described optimization module comprises:
Optimize submodule, for by linear function requirement, namely produce water scale=f
max, f (x
i)=Σ x
i≤ x
t, financial cost=g
min, g (x
i)=Σ B
i+ Σ h (x
i), obtain Seawater Desalination Project grouping module design and establishing;
Wherein, x
ifor module grouping scale, B
ifor the equipment cost corresponding to each module scale, h (x
i) energy storage device cost needed for each module scale.
It should be noted that, this device is the device applying above-mentioned Seawater Desalination Project total scale and grouping module scale computing method, the implementation of above-mentioned Seawater Desalination Project total scale and grouping module scale computing method is applicable to, in this device, also can reach identical technique effect.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (12)
1. Seawater Desalination Project total scale and grouping module scale computing method, be applied to wind-powered electricity generation-desalinization coupled system, it is characterized in that, comprise the following steps:
Obtain wind power generation cumulative frequency distribution and wind power generation cumulative frequency distribution curve;
According to described wind power generation cumulative frequency distribution curve, determine Seawater Desalination Project total scale;
According to described wind power generation cumulative frequency distribution curve and described Seawater Desalination Project total scale, Seawater Desalination Project is carried out modularization grouping;
Grouping module scale after Seawater Desalination Project carries out modularization grouping is optimized.
2. Seawater Desalination Project total scale according to claim 1 and grouping module scale computing method, is characterized in that, the step obtaining wind power generation cumulative frequency distribution and wind power generation cumulative frequency distribution curve comprises:
The wind data of acquisition or wind power data are calculated and is converted into wind power occurrence frequency;
Described wind power occurrence frequency is calculated and is converted into the distribution of wind power generation cumulative frequency, and S type curve acquisition wind power generation cumulative frequency distribution curve is carried out to wind power generation cumulative probability.
3. Seawater Desalination Project total scale according to claim 1 and grouping module scale computing method, is characterized in that, the step according to described wind power generation cumulative frequency distribution curve determination Seawater Desalination Project total scale comprises:
According to described wind power generation cumulative frequency distribution curve, determine the wind-power electricity generation power that cumulative frequency is corresponding when first threshold scope;
Using described wind-power electricity generation power as the available electric power of Seawater Desalination Project, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, obtain the first Seawater Desalination Project total scale;
According to the estimation of engineering experience formula, obtain the second Seawater Desalination Project total scale;
More described first Seawater Desalination Project total scale and described second Seawater Desalination Project total scale, get smaller value as Seawater Desalination Project total scale.
4. Seawater Desalination Project total scale according to claim 3 and grouping module scale computing method, is characterized in that, described engineering experience formula is exponential formula, and index parameters span is 0.8 ~ 1.2.
5. Seawater Desalination Project total scale according to claim 4 and grouping module scale computing method, is characterized in that, described index parameters span is 1.0 ~ 1.05.
6. Seawater Desalination Project total scale according to claim 5 and grouping module scale computing method, is characterized in that, described index parameters value is 1.016.
7. Seawater Desalination Project total scale according to claim 3 and grouping module scale computing method, is characterized in that, described first threshold scope is 10% ~ 30%.
8. Seawater Desalination Project total scale according to claim 1 and grouping module scale computing method, it is characterized in that, according to described wind power generation cumulative frequency distribution curve and described Seawater Desalination Project total scale, the step that Seawater Desalination Project carries out modularization grouping is comprised:
According to described wind power generation cumulative frequency distribution curve, determine that cumulative frequency is greater than the wind-power electricity generation power corresponding to Second Threshold, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, obtain the smallest size of module, carry out modularization grouping; Or
According to described wind power generation cumulative frequency distribution curve, determine the wind-power electricity generation power of cumulative frequency corresponding to the 3rd threshold value, divided by the institute of specific yield in desalination process subfam. Spiraeoideae, the module scale of acquisition, as each module scale, carries out modularization grouping.
9. Seawater Desalination Project total scale according to claim 8 and grouping module scale computing method, is characterized in that, the grouping module scale summation after described modularization grouping is not more than Seawater Desalination Project total scale.
10. Seawater Desalination Project total scale according to claim 8 and grouping module scale computing method, is characterized in that, described Second Threshold is the 80%, three threshold value is 50%.
11. Seawater Desalination Project total scales according to claim 1 and grouping module scale computing method, is characterized in that, comprises the step that the grouping module scale after Seawater Desalination Project carries out modularization grouping is optimized:
By linear function requirement, namely produce water scale=f
max, f (x
i)=Σ x
i≤ x
t, financial cost=g
min, g (x
i)=Σ B
i+ Σ h (x
i), obtain Seawater Desalination Project grouping module design and establishing;
Wherein, x
ifor module grouping scale, B
ifor the equipment cost corresponding to each module scale, h (x
i) energy storage device cost needed for each module scale.
12. 1 kinds of Seawater Desalination Project total scales and grouping module scale calculation element, be applied to wind-powered electricity generation-desalinization coupled system, it is characterized in that, comprising:
First obtains module, for obtaining the distribution of wind power generation cumulative frequency and wind power generation cumulative frequency distribution curve;
Total scale determination module, for according to described wind power generation cumulative frequency distribution, determines Seawater Desalination Project total scale;
Grouping module, for according to described wind power generation cumulative frequency distribution and described Seawater Desalination Project total scale, carries out modularization grouping by Seawater Desalination Project;
Optimize module, be optimized for the grouping module scale after carrying out modularization grouping to Seawater Desalination Project.
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