CN108425799A - 一种利用浮力和重力复合式海上风力发电储能方式 - Google Patents

一种利用浮力和重力复合式海上风力发电储能方式 Download PDF

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CN108425799A
CN108425799A CN201710091395.4A CN201710091395A CN108425799A CN 108425799 A CN108425799 A CN 108425799A CN 201710091395 A CN201710091395 A CN 201710091395A CN 108425799 A CN108425799 A CN 108425799A
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energy storage
buoyancy
power
energy
power generation
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张占海
张红
徐兆翮
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/008—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with water energy converters, e.g. a water turbine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/02—Other machines or engines using hydrostatic thrust
    • F03B17/025—Other machines or engines using hydrostatic thrust and reciprocating motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G3/00—Other motors, e.g. gravity or inertia motors
    • 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
    • Y02E10/20—Hydro energy
    • 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
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • 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
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Wind Motors (AREA)

Abstract

本发明是利用海水的浮力和重力作用，将海上风电处于用电低峰时，风电产生的能量储存起来，待海上无风，电网又处于用电高峰时，再将能量释放出来的一种储能方式。

Description

一种利用浮力和重力复合式海上风力发电储能方式
技术领域：
新能源储能领域。
背景技术：
海上的风力资源十分丰富，由于风力发电具有间歇性，使得储能更加重要，现有的海上风力发电储能，一般采用化学储能，即电瓶储能，化学储能容量小、价格高、使用寿命短，且后期处理污染环境，目前较为先进的是德国弗劳恩霍夫研究所研发的海上风电抽水储能系统，该系统利用位于海底的抽水蓄能电站储能，它是将空心球放入深水处，借助空心球，利用深水处的海水压力储存能，当需要储能时，用电力从球体中抽水，当需要释放能量时，水流通过涡轮机再返回到球体，从而驱动发电机发电。这一技术虽然解决了海上风力发电储能的难题，但存在缺陷，首先，适用范围窄，它只适合深水区，因为水越深压力越大；其次，需要多次转换，效率低，它先由风能转换成电能，电能转换成机械能抽水，水能再转换成电能，效率很低。
发明内容：
为了解决海上风力发电储能难的问题，本方法采用浮力、重力两种方式储能。
本发明解决其技术问题，所采取的技术方案包括有：风扇、变速器、发电机、传动轴、传动轮、传输链、浮筒、水斗，其特征：风扇与变速器连接，变速器与发电机连接，变速器与传动轴连接，传动轴与传动轮连接，传动轮与传输链连接，传输链与浮筒和水斗连接。
在发明中，当海上有风，电网处在用电高峰期时，风电系统正常工作，风扇带动发动机发电；当海上有风，电网却处于用电低峰时，动力通过系统传输，将浮筒压入海水中，同时将装满海水的水斗提出海面，利用海水的浮力和重力，将动力储存起来；当海上没有风，电网又处在用电高峰期时，浮筒由于海水浮力的作用，向上产生动力，同时水斗由于海水重力的作用，向下产生动力，将储存的能量释放出来。
本发明有益之处在于，它因地制宜，利用了海上风电处在丰富的海水中，海水向上可产生浮力、向下可产生重力，有效地利用这两种力，就实现了储能，特点是既适合深水区，也适合浅水区；同时能量是直接转换，效率高。
附图说明：
附图1为适合浅水区系统示意图，风扇1、变速器2、发电机3、传动轴4、传动轮5、传输链6、浮筒7、水斗8、海水9。
附图2为适合深水区系统示意图，风扇1、变速器2、发电机3、传动轴4、传动轮5、传输链6、浮筒7、海水9。
具体实施方式：
如附图1所示：在电网处于用电高峰时，海风吹动风扇1转动，产生动力，动力通过变速器2带动发电机3发电，电能输出；当海上有风，电网处于用电低峰时，海风吹动风扇1转动，产生动力，动力通过变速器2带动传动轴4、传动轮5转动，传动轮5带动传输链6转动，传输链6带动浮筒7向下，进入海水9，同时水斗8装满海水9向上浮出海面；当海上无风，电网又处在用电高峰时，浮筒7由于海水浮力的作用，向上释放能量，水斗8由于重力的作用，向下释放能量，能量产生动力，动力通过传输链6、传动轮5、传动轴4、变速器2带动发电机3发电。
如附图2所示：这一装置适合深水区，由于风塔的高度有限，加装水斗8的数量有限，只能采用单边加装浮筒7。

Claims (1)

1.本方式包括有：风扇、变速器、发电机、传动轴、传动轮、传输链、浮筒、水斗，其特征，风扇与变速器连接，变速器与发电机连接，变速器与传动轴连接，传动轴与传动轮连接，传动轮与传输链连接，传输链与浮筒和水斗连接。
CN201710091395.4A 2017-02-14 2017-02-14 一种利用浮力和重力复合式海上风力发电储能方式 Pending CN108425799A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113279909A (zh) * 2021-07-05 2021-08-20 陆文娇 一种利用浮力和重力复合式海上风力发电储能装置
CN114263568A (zh) * 2022-03-03 2022-04-01 武汉新能源研究院有限公司 一种海上风电储能系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113279909A (zh) * 2021-07-05 2021-08-20 陆文娇 一种利用浮力和重力复合式海上风力发电储能装置
CN114263568A (zh) * 2022-03-03 2022-04-01 武汉新能源研究院有限公司 一种海上风电储能系统

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