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A tidal current power plant planning method considering the impact of reefs

A power plant and tidal technology, which is applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve problems that are not conducive to the rational use of tidal current energy power plant funds, overestimation of tidal current energy power generation potential, and inability to directly apply tidal currents Issues such as flow energy power plant planning, to achieve the effect of improving capital utilization and tapping power generation potential

Inactive Publication Date: 2021-05-11
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is mainly carried out for ideal sea areas, and cannot be directly applied to the planning of tidal current power plants considering unfeasible areas.
The disadvantages of this method are: the influence of unfeasible areas on tidal flow velocity is ignored, and the power generation potential of tidal current energy is overestimated, which is not conducive to the rational use of tidal current energy power plant funds

Method used

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  • A tidal current power plant planning method considering the impact of reefs
  • A tidal current power plant planning method considering the impact of reefs
  • A tidal current power plant planning method considering the impact of reefs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0161] see figure 1 , a tidal current energy plant planning method considering the influence of reefs, mainly includes the following steps:

[0162] 1) Obtain the basic data of the tidal current power plant.

[0163] Further, the basic data of the tidal current power plant mainly include:

[0164] The tidal flow velocity measured data sample v of the tidal current energy power plant in 24 periods of each day in n days qt . q is the serial number of the day. t is the serial number of the time period. For example, the measured data sample of tidal flow velocity on the qth day is Vq=[v q1 ,v q2 ,...,v q24 ], q=1,2...n, t=1,2...24.

[0165] The cut-in velocity V of the tidal current energy generator in , Rated velocity V rated , cut out flow velocity V out , Rated output power P rated , Capability coefficient C p , thrust coefficient C T , blade diameter D, blade radius r 0 and the area A swept by the blade.

[0166] Seawater density ρ and turbulence coefficient I ...

Embodiment 2

[0311] Taking the construction of a tidal current power plant in the sea near the coastal areas of our country as an example, the specific steps of the tidal current power plant planning method considering the influence of reefs are as follows:

[0312] 1) Enter basic data.

[0313] Input tidal current energy power plant 90 days per day 24 periods of measured data sample of tidal current v qt , where the measured data sample of tidal flow velocity on the qth day is V q =[v q1 ,v q2 ,...,v q24 ], q=1,2...n, t=1,2...24, n=90. Input the cut-in velocity V of the tidal current energy generator in =0.7m / s, rated velocity V rated =3m / s, cut out flow velocity V out =3.5m / s, rated output power P rated =1.2MW, Capability coefficient C P =0.45, thrust coefficient C T =0.7, blade diameter D=18m, blade radius r 0 =9m, the area swept by the blade A=254.34m 2 , seawater density ρ=1025kg / m 3 , the turbulence coefficient I 0 = 0.07. The planned area of ​​input tidal current powe...

Embodiment 3

[0373] The comparison between a tidal current power plant planning method considering the impact of reefs and a tidal current power plant planning method not considering the impact of reefs is as follows:

[0374] M0: A Tidal Stream Energy Farm Planning Method Considering Reef Impacts.

[0375] M1: The influence of the wake in unfeasible areas such as reefs is not considered, and the rest of the optimization process is consistent with the present invention.

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Abstract

The invention discloses a tidal current energy power plant planning method considering the influence of reefs. The main steps are: 1) acquiring basic data. 2) Obtain the mean set M of tidal current velocity. 3) Generate the initial sample of the generator set layout and the position coordinates of the generator. 4) Calculate the daily equivalent investment cost of the tidal current power plant. 5) Calculate the daily power generation E of the power plant. 6) Tidal current energy generators are grouped 7) Calculate the daily equivalent investment cost of the collector system considering the unfeasible area. 8) Optimizing the planning scheme of the tidal current energy power plant. 9) Determine whether the iteration is terminated. The invention can be widely applied to the planning problem of the tidal current energy power plant, and can provide beneficial reference for the planning and operation problem analysis of the tidal current energy power plant.

Description

technical field [0001] The invention relates to the field of electric power system planning, in particular to a tidal current energy power plant planning method considering the impact of reefs. Background technique [0002] The energy crisis and environmental pollution problems are becoming more and more serious. As a green and environmentally friendly form of ocean energy utilization with great potential, tidal current power generation has been highly valued by countries all over the world. In order to make full use of tidal current energy resources, centralized power generation in the form of tidal current energy power plants is often used. Countries such as Europe and the United States have established MW-level tidal current energy power plants and put them into commercial operation. The planning and design of tidal current energy power plant is the key problem to be solved in the development of tidal current energy, which is directly related to the power generation effic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 任洲洋王元萌
Owner CHONGQING UNIV