CN106226044B - A kind of Reliable Evaluating Methods of Their Performance of marine tidal-current energy capture blade - Google Patents
A kind of Reliable Evaluating Methods of Their Performance of marine tidal-current energy capture blade Download PDFInfo
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- CN106226044B CN106226044B CN201610540737.1A CN201610540737A CN106226044B CN 106226044 B CN106226044 B CN 106226044B CN 201610540737 A CN201610540737 A CN 201610540737A CN 106226044 B CN106226044 B CN 106226044B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
Abstract
The invention discloses a kind of Reliable Evaluating Methods of Their Performance of marine tidal-current energy capture blade comprising steps are as follows, and: a. collects the tidal current speed sample curve in specified sea area, and arranges and obtain one time graph of tidal current speed of sea area whole year；B. tidal current speed-time graph annual obtained in above-mentioned steps a is divided by several flow velocity sections according to the difference of tidal current speed sizes values；C. test marine tidal-current energy captures blade generated each performance number under each flow velocity section intermediate value that step b is divided；D. each energy value that marine tidal-current energy capture blade can capture under each tidal current speed value is obtained multiplied by its corresponding duration value according to each performance number tested in step c；E., energy value each in step d is added to the total energy value as marine tidal-current energy capture blade whole year capture.The technical issues of which solve " accurately judging that marine tidal-current energy captures blade performance ", can greatly push the practical application of marine tidal-current energy capture blade.
Description
Technical field
The present invention relates to a kind of Reliable Evaluating Methods of Their Performance of marine tidal-current energy acquisition equipment, especially a kind of marine tidal-current energy capture blade
Reliable Evaluating Methods of Their Performance.
Background technique
Marine tidal-current energy is as a kind of pollution-free, huge renewable energy of reserves, under the background that current oil price remains high
Just more and more paid close attention to by people.Compared with solar energy and wind energy, the energy density of marine tidal-current energy is very big, changing rule
With stronger predictability.In addition, the utilization of marine tidal-current energy does not need to block Hai Jianba, and relevant energy capture device (blade)
Be normally submerged in it is marine, on marine organisms influence it is smaller.
In recent decades, the technology that can be carried out capture to trend is increasingly mature, and the research of capture blade also persistently causes
The concern of people.Flow velocity is not at any time in the environment of blade work is assumed that more to the evaluation of marine tidal-current energy capture blade performance at present
Between change, the influence that different periods seawater velocity in practical sea area changes can be ignored during evaluation, this often results in evaluation
As a result reality is not met, and is difficult to that blade is made to play optimum performance in practical applications yet, is virtually wasted available
Energy.
Therefore, the method for evaluating performance for formulating a kind of new marine tidal-current energy capture blade, will greatly push marine tidal-current energy to capture paddle
The practical application of leaf obtains energy from trend to the maximum extent, and relevant scientific research provides design considerations for after.
Summary of the invention
A kind of rationally reliable marine tidal-current energy is provided the purpose of the present invention is to solve above-mentioned the deficiencies in the prior art to catch
Obtain the Reliable Evaluating Methods of Their Performance of blade.
To achieve the goals above, the Reliable Evaluating Methods of Their Performance of a kind of marine tidal-current energy capture blade designed by the present invention, packet
Include that steps are as follows:
A. tidal current speed figure is arranged；The tidal current speed sample curve in specified sea area is collected, and arranges and obtains the sea
One time graph of tidal current speed of domain whole year；
B. according to the difference of tidal current speed sizes values by tidal current speed-time graph annual obtained in above-mentioned steps a
Several flow velocity sections are divided into, and counts and falls in duration value occupied by each curved section in each flow velocity section；
C. test marine tidal-current energy captures blade generated each power under each flow velocity section section intermediate value that step b is divided
Value；
D. trend under each tidal current speed value is obtained multiplied by its corresponding duration value according to each performance number tested in step c
Each energy value that blade can capture can be captured；
E. energy value each in step d is added the total energy value as marine tidal-current energy capture blade whole year capture, and total with this
How much judgement marine tidal-current energies capture blade of energy value refers to the marine tidal-current energy acquisition performance in Dinghai domain in step a.
The Reliable Evaluating Methods of Their Performance for a kind of marine tidal-current energy capture blade that the present invention obtains, in marine tidal-current energy capture blade performance
The influence that different periods tidal current speed changes in practical sea area is considered in entire decision process, is efficiently avoided " because not
With period tidal current speed change influence marine tidal-current energy capture blade assessment of performance accuracy " the case where occur.On the other hand, at this
With the help of method, people can carry out different blade designs according to different waters situation, and design result is made more to meet reality
Situation.
Detailed description of the invention
Fig. 1 is the one time graph schematic diagram of tidal current speed of certain two weeks in heretofore described sea area whole year.
Fig. 2 is the partial enlarged view of Fig. 1.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
The Reliable Evaluating Methods of Their Performance of the capture blade of a kind of marine tidal-current energy provided in the present embodiment, by marine tidal-current energy in the present embodiment
Capture blade A and marine tidal-current energy capture blade B, which makees to evaluate, to be compared, and specifically includes that steps are as follows:
A. tidal current speed figure is arranged；The tidal current speed sample curve in specified sea area is collected, and arranges and obtains the sea
One time graph of tidal current speed of domain whole year, wherein vertical axis is tidal current speed value, and X direction is the annual hour in specified sea area
Number is observed, tidal current speed-time graph of certain two weeks listed here because annual change in flow is frequently inconvenient, as shown in Figure 1,
For purposes of illustration only, listing the partial enlarged view of Fig. 1, as shown in Figure 2；
B. according to the difference of tidal current speed sizes values by tidal current speed-time graph annual obtained in above-mentioned steps a
It is divided, since blade A and blade B could only generate electricity in flow velocity > 0.6m/s, therefore demarcation interval is [0.6,0.7],
[0.7,0.8], several flow velocity sections such as [0.8,0.9]；
C. the flow velocity section that flow velocity is [0.6,0.7] is found out in flow velocity figure, as shown in Fig. 2, being fallen on transverse axis
Time interval is labeled as t0.65(1), t0.65(2) ..., t0.65(n1), when calculating flow velocity section is total occupied by [0.6,0.7]
Long value t0.65: t0.65=t0.65(1)+t0.65(2)+…+t0.65(n1), it is counted occupied by other flow velocity sections by identical step
Total duration value t0.75, t0.85, t0.95Deng；
D. test marine tidal-current energy captures blade A generated each function under each flow velocity section section intermediate value that step b is divided
Rate value PA1, PA2, PA3Deng；Produced by marine tidal-current energy capture blade B is tested under each flow velocity section section intermediate value that step b is divided
Each performance number PB1, PB2, PB3Deng；
E. trend under each tidal current speed value is obtained multiplied by its corresponding duration value according to each performance number tested in step d
Each energy value W that blade A can be captured can be capturedA1、WA2、WA3Deng；According to each performance number tested in step d multiplied by it
Corresponding duration value obtains each energy value W that marine tidal-current energy capture blade B can be captured under each tidal current speed valueB1、WB2、WB3Deng；
F. energy value each in step e is added the total energy value as marine tidal-current energy capture blade whole year capture, and total with this
How much judgement marine tidal-current energies capture blade A and B of energy value refers to the marine tidal-current energy acquisition performance in Dinghai domain in step a；If WA is total>
WB is total, that is, show that above-mentioned marine tidal-current energy capture blade A is more suitable for specified sea area application in the present embodiment.
Claims (1)
1. a kind of Reliable Evaluating Methods of Their Performance of marine tidal-current energy capture blade, which is characterized in that comprise the following steps that
A. tidal current speed figure is arranged；The tidal current speed sample curve in specified sea area is collected, and arranges that obtain the sea area complete
One time graph of tidal current speed in year；
B. tidal current speed annual obtained in above-mentioned steps a-time graph is divided according to the difference of tidal current speed sizes values
For several flow velocity sections, and counts and fall in duration value occupied by each curved section in each flow velocity section；
C. test marine tidal-current energy captures blade generated each performance number under each flow velocity section section intermediate value that step b is divided；
D. marine tidal-current energy under each tidal current speed value is obtained multiplied by its corresponding duration value according to each performance number tested in step c to catch
Obtain each energy value that blade can capture；
E. energy value each in step d is added the total energy value as marine tidal-current energy capture blade whole year capture, and with the gross energy
How much judgement marine tidal-current energies capture blade of value refers to the marine tidal-current energy acquisition performance in Dinghai domain in step a.
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