WO2009062362A1 - Usine marémotrice et procédé de production d'énergie utilisant celle-ci - Google Patents

Usine marémotrice et procédé de production d'énergie utilisant celle-ci Download PDF

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Publication number
WO2009062362A1
WO2009062362A1 PCT/CN2007/071237 CN2007071237W WO2009062362A1 WO 2009062362 A1 WO2009062362 A1 WO 2009062362A1 CN 2007071237 W CN2007071237 W CN 2007071237W WO 2009062362 A1 WO2009062362 A1 WO 2009062362A1
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WIPO (PCT)
Prior art keywords
reservoir
water
gate
tide
tidal
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PCT/CN2007/071237
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English (en)
Chinese (zh)
Inventor
Binyan Lin
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Binyan Lin
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Publication of WO2009062362A1 publication Critical patent/WO2009062362A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • E02B9/08—Tide or wave power plants
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • the present invention relates to a hydroelectric generating apparatus and a power generating method, and more particularly to a device utilizing tidal power generation and a tidal power generating method.
  • tidal energy can be once again regarded as a clean and renewable energy source in the world.
  • South Korea has invested heavily in building the total installed capacity from 2004.
  • the frog lake tidal power station in lOOOMw is just an example.
  • the first phase of the power station project of 260Mw can be completed and put into operation in 2008.
  • countries such as the United Kingdom, the Philippines, the United States and other resources are actively preparing for it.
  • the three major problems of economics, controllability of power quality and limitations of resources in the development of tidal power stations will remain the constraints of large-scale development of tidal energy.
  • the object of the present invention is to overcome the above-mentioned deficiencies and to provide a new tidal energy development mode and a universal working condition tidal power station using tidal energy for seawater tidal power generation.
  • the new tidal energy development mode which is to synthesize A and B reservoirs by using a dike method in a shallow or shallow sea, and correspondingly on the dike
  • the A and B banks there are inlet gates and outlet gates, and hydroelectric generating sets with favorable water level difference for power generation are installed on the banks between the A and B banks.
  • the method is to synthesize A and B reservoirs by using dikes combined with natural sea tops on shallow sea beaches, where A is the upper reservoir and B is the lower reservoir; it uses the tidal range of the astronomical tide fluctuations, through the A library.
  • the inlet gate of the inlet gate, the ordered control of the outlet of the B reservoir outlet gate, and the water level difference that can be controlled by the AB reservoir for power generation; the hydro-generator set installed between the AB reservoirs can be used as a grid-based base station or as a grid. In the peaking power station, it is also possible to arbitrarily select a combination of required power generation operating conditions between the above two operating conditions.
  • a versatile working condition tidal power station which comprises a large-area reservoir pool separated from the sea by a dike in a shallow or shallow sea, and the middle of the reservoir is partitioned into a relatively independent water storage by a bank
  • the A and B banks, the A and B reservoirs are respectively provided with at least one intake gate and one outlet gate on the dike facing the sea, and at least one utilization is constructed on the dike between the A and B reservoirs.
  • a hydroelectric generating unit that generates electricity by water level difference.
  • the dike is enclosed by a masonry dam, and the inlet gate and the outlet gate corresponding to the A and B reservoirs are respectively composed of a gate frame, a guide groove and a gate.
  • a unidirectional tubular turbine generator set is installed on the bank between the A bank and the B bank, and becomes a component of the bank
  • the A library is an upper storage, and the corresponding dike is provided with a water inlet gate, the B library is a lower storage, and the corresponding dike is provided with a water outlet gate, and the A library is also provided with a lifting Water equipment.
  • the invention changes the traditional development and operation mode of the tidal energy power station, and makes the development of tidal energy from the bay to the shallow sea become a reality, and expands the total amount of tidal energy resources that can be developed more than five times, so that the economics and power quality of the tidal energy development can be
  • the scalability of control and resource development has market development value, which helps to alleviate the full energy demand and the pressure of carbon dioxide emission reduction.
  • the invention has the following characteristics: First, the controllability of the power quality: According to the configuration of the AB library water volume adjustment capacity and the unit capacity, a plurality of power generation operating conditions can be combined; the power generation time is the longest, and the installed capacity is the smallest, and the unit The utilization time of kilowatt-day can be up to 24 hours; the power quality is the best, the peak-load energy is the most, the corresponding installed capacity is increased, and the power generation utilization time is reduced, which can replace the peak-shaving function of the energy storage power station; between the above two working conditions, It is also possible to combine the best configuration conditions of the economic benefits of the power station; the A and B reservoirs of the tidal power station can configure the ratio and installed capacity of the A and B reservoirs according to different needs, so that the power quality of the tidal power station can meet the grid load. Claim.
  • the electromechanical equipment is the main investment body of the tidal power station, accounting for 60% of the investment in the conventional tidal power station.
  • the power generation utilization hours of the AB tidal power station is 2-3 times that of the traditional tidal power generation, the same amount of resources
  • the installed capacity can be reduced by more than 50% compared with the traditional single-tidal tidal power station, which can greatly reduce the cost of unit energy investment, and its economy is obvious.
  • the third is the expansion of resources: Taking Zhejiang as an example, according to the results of the national marine census in the 1970s, the coastal sea area of -20.0m above the coast of Zhejiang Republic is 4851.4 square kilometers, and the total installed capacity of tidal energy can be developed to 891.39 million kw. 26.69 billion kwh, the exploitable resources are confined to the Gulf.
  • the site selected by the present invention is not bound by the bay, and the station can be built in the shallow sea.
  • the coastal shallow coastal water resources of Zhejiang are abundant.
  • the shallow sea area (including the bay) above the -20.0M contour line is 24,286, 9 square kilometers; the tidal energy reserves that can be developed are the total amount of the original census data. Five times the total amount of this resource is also 5.5 times the total amount of land-based hydropower resources in Zhejiang province. Therefore, the AB-tidal power station has a strong resource expansion.
  • the invention Compared with the prior art, the invention has the characteristics of long power generation time, low unit power cost, strong controllability of power quality, wide application area and high comprehensive development rate of resources. It not only highlights its commercial development value, but also enables the Chaoshan to develop a traditional concept of breaking through the Gulf resources and facing a huge shallow sea tide, which can help alleviate global energy demand and CO2 emission reduction pressure, and its social, economic and environmental benefits. inestimable.
  • Figure 1 is a schematic view of the structure of the present invention.
  • the novel tidal energy development mode of the present invention is to synthesize A and B reservoirs in a shallow or shallow sea by a dike method, and correspondingly on the dike
  • a and B banks there are inlet gates and outlet gates, and hydroelectric generating sets with favorable water level difference for power generation are installed on the banks between the A and B banks.
  • the hydroelectric generating unit begins.
  • the A reservoir inlet gate is closed, and the hydro-generator unit uses the water level difference between the A and B reservoirs to continue power generation; at this time, the water level of the B reservoir rises and the water level of the A reservoir decreases; Below the water level of the B reservoir, the B reservoir opens the drain and drains, so that the water level of the B reservoir decreases to the lowest tide level with the ebb tide, and the hydroelectric generating unit can continue to generate electricity until the high tide enters the next cycle.
  • the method according to the present invention is to synthesize A and B reservoirs on the shallow sea beach by using the dikes combined with the natural sea topography, wherein the A library is the upper pool and the B library is the lower storage; it utilizes the tide of the astronomical tide fluctuations. Poor, through the water inlet of the A reservoir, the order control of the water outlet of the B reservoir, and the water level difference that can be controlled by the AB library for power generation; the hydro-generator set installed between the AB banks can be used as the grid-based power station It can also be used as a power grid peaking power station, and it can also be used in the above two conditions. A combination of required power generation operating conditions can be arbitrarily selected.
  • a omnipotent tidal power station which comprises a large-area reservoir pool 1 separated from the sea by a dike in a shallow or shallow sea, the reservoir 1 In the middle, the bank A is separated into a relatively independent water storage A and B banks, and the A and B reservoirs facing the sea are respectively provided with at least one inlet gate 4 and one outlet gate 5, respectively, in the A bank. At least one hydroelectric generating set 6 that uses the water level difference to generate electricity is built on the bank 2 between the B and the B bank.
  • the dike 3 is enclosed by a masonry dam, and the inlet gate 4 and the outlet gate 5 corresponding to the A and B reservoirs are respectively composed of a gate frame, a guide groove and a gate.
  • the dam may be composed, in whole or in part, with a dam or shoreline 7.
  • a unidirectional tubular turbine generator unit 6 is installed on the bank 2 between the A and B banks and is a component of the bank.
  • the banks may be made manually or may be formed naturally in whole or in part.
  • the A library is an upper storage, and the corresponding dike is provided with a water inlet gate, the B library is a lower storage, and the corresponding dike is provided with a water outlet gate, and the A library can also be configured with Water lifting equipment, and converted into pumped storage power generation.
  • the principle of the A and B reservoir tidal power stations according to the present invention is the same as that of the pumped storage power station, and the difference is that: the AB reservoir tidal power station does not need to pump water, but uses the tidal level difference to flow into the water, and performs the water level difference between the two reservoirs. Control, to achieve the purpose of hydroelectric power generation. Techniques such as one-way tubular hydro-generator sets and their installation and use in accordance with the present invention are within the skill of the art, including gate technology, etc., and are not well described in the present invention.
  • the implementation is as follows: The site area is selected in the Sanmenwan sea area on the southeast coast of Zhejiang province.
  • the bay and shallow sea area of the -10m contour line is more than 3,100 square kilometers, of which the Sanmen Bay area is 775 square kilometers, of which the tidal flat area is 295 square meters.
  • the average water depth in the sea area is less than 10 meters.
  • Tidal characteristic parameters The tidal fluctuation of the sea area lasted 12 hours and 25 minutes, of which, the high tide was 5 hours and 51 minutes, the low tide was 6 hours and 34 minutes, the maximum tidal range was 7.75 meters, and the average tidal range was 4.25 meters.
  • the average tidal current rate was 0.73m per hour.
  • the average tide ebbing speed is 0.65 meters per hour.
  • the effective design tidal range in the planning stage is 4.0 meters.
  • Power generation characteristics index In order to simplify the analysis and calculation of complex tidal power generation characteristics, the equivalent water area comparison method is adopted. In this analysis and calculation, the sea area is 210 square kilometers, and the absolute tidal range is 4.0m.
  • the original single-bank conventional tidal power station design single-story area of 210 square kilometers, the highest water level of 4.0 meters, the minimum water level corresponding adjustment capacity of 525 million cubic meters, the minimum head of the power generation 1.5m maximum head according to the ebb tide rate and power generation water level joint calculation; design installed
  • the capacity is 400,000kw installed, the water generation capacity per hour is 120 million cubic meters, the water level drop rate of the reservoir is 0.571; the ebb tide rate is 0.605m, the starting water generation head 1.5mX1.07 ebb tide rate ratio, the actual power generation water consumption 4.6 Billion cubic meters, power generation capacity of 1.64 million degrees, annual power generation hours of 2993 hours.
  • the design of the AB library tidal power station of the present invention The total area of the AB library is 210 square kilometers, wherein the area of the A library is 110 square kilometers, the area of the B library is 100 square kilometers, and the capacity of the comprehensive equipment is 200,000 kw. According to the adjustment calculation, the highest water level in the A library is 4.0mi, and the lowest water level is 2.02m; the lowest water level in the B library is 0.0m, and the highest water level is 2.0m. The tidal level outside the reservoir rose to 1.7m, and the B reservoir level was 0.0m, and power generation began. The high tide to 4.0m unit generation time is 3.35 hours.
  • the unit began to generate electricity for 1.0 hour, and the water level of the A reservoir was reduced to 3.53m.
  • the water level of the B reservoir was increased to 2.00m and the power generation was stopped.
  • the required ebb tide time was 2.68 hours, and the power station downtime was 1.68 hours. From 2.0m to 0.0m, there are still 3.28 hours; the actual power generation time of the unit in the ebb tide process is 4.28 hours; the total tide generation time is 7.63 hours, the power generation per tidal is 15.26 million kw, and the annual power generation is 5570 hours.
  • the AB reservoir tidal power station has the following several advantages: First, the unit power cost can be greatly reduced.
  • the installed capacity of the AB library tidal power station is 50% of the installed capacity of the traditional single-tidal tidal power station.
  • the installed hours can be increased by 86.1%, the effective utilization rate of tidal energy resources can be reduced by 7%, and the investment in electromechanical equipment can be reduced by 100%. Since the electromechanical investment in China's Chaoshan Power Station is generally greater than that of civil construction, the unit power of conventional tidal power stations is high.
  • the B-ku tidal power station can reduce the mechanical and electrical investment by 50%, so that the unit energy investment index can be better than the indicators of the conventional tidal power station.
  • the comprehensive utilization of resources in the reservoir area is superior to the conventional single-chassis tidal power station.
  • the development of tidal power stations pays attention to the development and utilization of aquaculture and tourism resources in the reservoir area to improve comprehensive benefits.
  • the AB reservoir tidal power station has a maximum water level of 2.0 m lower than the highest astronomical tide, which is 2.0 m lower than the highest water level of the traditional tidal power station reservoir.
  • the tidal flats with a height difference of 2.0m along the gulf of the Baku area are exposed to the surface of the water and become a land for agro-ecological development.
  • This valuable land resource will completely change the production conditions and living environment of the residents of the B-ku, and its social benefits are enormous.
  • the third is to change the traditional concept of poor power quality in Chaoshan Power Station. Because the AB reservoir tidal power station has good adjustability, the same reservoir use area can determine the total installed capacity according to the grid power load requirements. The larger the installed capacity, the stronger the peak capacity. , so that the AB library tidal power station also has a network power peaking function.
  • the invention belongs to a new tidal power generation method. Since the tidal power generation technology has been quite mature, the installation of equipment such as a hydroelectric generating set is a conventional technical means, so those skilled in the art understand the basis of the present invention. The present invention can be easily implemented by combining common knowledge and related art.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

La présente invention a pour objet une usine marémotrice qui comprend une digue (3) pour entourer un réservoir A et un réservoir B, une digue d'isolation (2) située entre le réservoir A et le réservoir B, et une vanne d'admission (4) ainsi qu'une vanne d'évacuation (5) qui correspondent au réservoir A et au réservoir B sur la digue (3). Des unités de turbogénérateur (N) qui produisent l'énergie électrique en faisant usage de la hauteur de chute sont installées sur la digue d'isolation (2). Lorsque la marée descend à son niveau le plus bas, la vanne d'évacuation (5) du réservoir B est fermée ; lorsque la marée monte, la vanne d'admission (4) du réservoir A s'ouvre, et les unités de turbogénérateur (N) commencent à produire de l'énergie électrique une fois que la hauteur de chute entre les niveaux d'eau dans le réservoir A et le réservoir B a atteint la hauteur minimale théorique de production ; lorsque la marée atteint son niveau maximal, la vanne d'admission (4) du réservoir A est fermée, et les unités de turbogénérateur (N) continuent de produire de l'énergie électrique en vertu de la hauteur de chute entre le réservoir A et le réservoir B, tandis que le niveau d'eau augmente dans le réservoir B et chute dans le réservoir A ; lorsque le niveau d'eau dans le réservoir B est supérieur à la marée descendante, la vanne d'évacuation (5) du réservoir B est ouverte, et le niveau d'eau dans le réservoir B chute, si bien que les unités de turbogénérateur (N) sont aptes à produire de l'énergie électrique jusqu'au début du cycle suivant de flux et de reflux.
PCT/CN2007/071237 2007-11-15 2007-12-14 Usine marémotrice et procédé de production d'énergie utilisant celle-ci WO2009062362A1 (fr)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN108425350A (zh) * 2018-06-07 2018-08-21 田兆斌 一种增加水位差连续发电的单向式潮汐电站及发电方法
CN114936793A (zh) * 2022-06-10 2022-08-23 广东电网有限责任公司 一种电力系统的优化调度方法、装置、设备及存储介质

Families Citing this family (7)

* Cited by examiner, † Cited by third party
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CN100491719C (zh) * 2007-11-15 2009-05-27 林斌炎 一种潮汐能发电方法
CN101314943B (zh) * 2008-07-14 2010-07-14 浙江大学 双库自调节潮汐能发电方法及其系统
KR101073462B1 (ko) * 2011-05-06 2011-10-17 이한석 조력발전 시스템
CN102828893A (zh) * 2011-06-14 2012-12-19 吴宸至 取代核电站的潮汐发电站
CN102900590A (zh) * 2012-10-19 2013-01-30 李文斌 水坝式潮汐能自动抽水蓄能装置
CN103423077A (zh) * 2013-09-06 2013-12-04 钟世杰 一种全日连续发电的潮汐发电系统
CN103939272B (zh) * 2014-04-16 2016-06-22 钟世杰 双向型全日连续潮汐发电系统

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CN101092929A (zh) * 2007-07-17 2007-12-26 王玉田 潮汐能发电设施
CN101178050A (zh) * 2007-11-15 2008-05-14 林斌炎 新型潮汐能开发模式及万能工况潮汐电站

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Publication number Priority date Publication date Assignee Title
JPS5641463A (en) * 1979-09-12 1981-04-18 Nippon Tetorapotsuto Kk Power generation facilities using wave and tide energy
GB2395986A (en) * 2002-11-06 2004-06-09 Augustine Pascal Joseph Murphy Tidal power generation system
CN1789702A (zh) * 2004-12-15 2006-06-21 鞠延忠 海水潮汐发电装置
CN1776218A (zh) * 2005-11-19 2006-05-24 叶建华 海水电场
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CN101178050A (zh) * 2007-11-15 2008-05-14 林斌炎 新型潮汐能开发模式及万能工况潮汐电站

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108425350A (zh) * 2018-06-07 2018-08-21 田兆斌 一种增加水位差连续发电的单向式潮汐电站及发电方法
CN114936793A (zh) * 2022-06-10 2022-08-23 广东电网有限责任公司 一种电力系统的优化调度方法、装置、设备及存储介质

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