WO2017118228A1 - 水上光伏系统 - Google Patents

水上光伏系统 Download PDF

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Publication number
WO2017118228A1
WO2017118228A1 PCT/CN2016/106418 CN2016106418W WO2017118228A1 WO 2017118228 A1 WO2017118228 A1 WO 2017118228A1 CN 2016106418 W CN2016106418 W CN 2016106418W WO 2017118228 A1 WO2017118228 A1 WO 2017118228A1
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WO
WIPO (PCT)
Prior art keywords
photovoltaic
photovoltaic system
support
floating
water
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PCT/CN2016/106418
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English (en)
French (fr)
Inventor
耿晓达
韩晓艳
宋行宾
Original Assignee
京东方科技集团股份有限公司
北京京东方能源科技有限公司
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Application filed by 京东方科技集团股份有限公司, 北京京东方能源科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to EP16852883.4A priority Critical patent/EP3402068A4/en
Priority to US15/519,737 priority patent/US20180102732A1/en
Priority to JP2017521591A priority patent/JP2019500255A/ja
Publication of WO2017118228A1 publication Critical patent/WO2017118228A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/70—Waterborne solar heat collector modules
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/10—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
    • 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
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking
    • 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
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • Embodiments of the present application relate to the field of photovoltaic technology, and in particular, to a water photovoltaic system.
  • Solar energy resources have become the most valuable renewable resources with their large resources and wide distribution.
  • photovoltaic power plants are generally built in sparsely populated mountains or deserts, or built on land such as building roofs. Due to the scarcity of land resources, a photovoltaic system built on the water has emerged, called the water photovoltaic system.
  • the brackets of the water photovoltaic system are fixed installation methods, for example, the reinforced concrete structure is poured on the bottom of the water, and the photovoltaic support and the photovoltaic module are installed on the reinforced concrete structure. Since the water photovoltaic system has high requirements on the water source, it needs to be installed in an area with a shallow depth of water, which is inconvenient in construction and high in cost.
  • a water photovoltaic system comprising a photovoltaic module, a photovoltaic support and a suspension device, wherein the photovoltaic component is fixed on the photovoltaic support, and the photovoltaic support is fixed on the suspension device
  • the suspension device includes a plurality of floating members, and each of the floating members includes a plurality of buoys connected in pairs.
  • each of the floating members includes four pontoons connected in pairs.
  • the plurality of floating members are substantially the same size and are substantially identical in shape.
  • each of the buoys is a cube.
  • each of the pontoons has a size of about 500 mm x 500 mm x 400 mm.
  • a connecting bolt is mounted around each of the pontoons for connecting adjacent pontoons together.
  • the photovoltaic support is secured to the floating component by a connecting peg.
  • a corridor is also integrated with the suspension device, the corridor being achieved by increasing the number of floats.
  • a guard rail mounted to the outside of the corridor is also included.
  • a profile bracket for joining the photovoltaic support and the floating component is also included.
  • the profile bracket is a planar, unitary profile bracket.
  • a fixture is also included for securing the waterborne photovoltaic system to a designated location on the surface of the water.
  • the fixture is a hinge and the hinge is coupled to the pontoon.
  • the advantages of the water photovoltaic system according to the embodiment of the present application include: no need to occupy land, photovoltaic power generation by using water surface, thereby saving land resources; simple structure, low cost; easy to expand, easy to form photovoltaics of various sizes and sizes system.
  • FIG. 1 is a schematic diagram of a water photovoltaic power generation system in accordance with an embodiment of the present application
  • FIG. 3 is a top plan view of a marine photovoltaic power generation system in accordance with an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a marine photovoltaic power generation system in accordance with a further embodiment of the present application.
  • the maritime photovoltaic system comprises a photovoltaic module 1, a photovoltaic support 2 and a suspension device, the photovoltaic assembly 1 is fixed on the photovoltaic support 2, and the photovoltaic support 2 is fixed on the suspension device.
  • the suspension device can be suspended on the water surface.
  • the suspension device is constituted by a plurality of floating members 5, and the plurality of floating members 5 can be increased in number and arrangement as needed.
  • each of the floating members 5 may be constituted by a plurality of block floats 3, which may be arranged as needed to increase or decrease the number of the floats 3.
  • each of the floating members 5 is substantially identical in shape and substantially the same size.
  • the type of the photovoltaic module 1 is not limited, and may be either crystalline silicon or amorphous silicon; it may be a flexible battery board or a non-flexible battery board, and may have a frame or a frame. And the size and installation quantity of the photovoltaic panel are not limited.
  • a photovoltaic panel used in an exemplary embodiment of the present application is a common 1650 ⁇ 990 ⁇ 40 mm specification, 245 WP photovoltaic module.
  • the type of the photovoltaic support 2 is not limited, and the photovoltaic support 2 can be designed according to the type or needs of the photovoltaic module 1.
  • the photovoltaic support 2 can also adopt a tracking system.
  • the photovoltaic module 1 can be mounted on the photovoltaic support 2 in any suitable manner known in the art or developed in the future.
  • the photovoltaic support 2 can be fixed to the floating member 5 by means of a connecting bolt 4.
  • the connecting pin 4 can take any suitable number, type, size and shape.
  • Each of the floating members 5 may be constituted by a plurality of block floats 3.
  • each of the floating members 5 is constituted by four floats 3.
  • a connecting bolt 4 can be installed around the four or four corners of each pontoon 3, and the pontoons 3 can be combined by the connecting bolts 4, or the external structure can be fixed by the connecting bolts 4, for example, the photovoltaic cradle 2. That is, in the exemplary embodiment of the present application, the floating member 5 is connected together by a combination of four buoys 3, and then connected to the photovoltaic support 2 at the connection of the floating member 5 through the connecting bolt 4. The floating member 5 and the photovoltaic support 2 are connected together.
  • the number and combination of the floating members 5 are not limited and may be designed according to the weight of the photovoltaic module 1 and the photovoltaic support 2. Furthermore, the type, number and combination of the pontoons 3 are not limited.
  • the floating member 5 may be constituted by a pontoon.
  • the standard pontoon may be a pontoon commonly found on the market, for example a cube of size 500 x 500 x 400 mm.
  • the material of the pontoon may be, for example, a high molecular polyethylene, and a connecting bolt 4 may be attached to the four corners of each pontoon.
  • the pontoons may be combined by the connecting bolts 4, or the external structure may be fixed by the connecting bolts 4.
  • the bearing capacity of such a standard pontoon can be, for example, 350 kg/m 2 .
  • each floating member 5 According to the size of the standard pontoon, the bearing capacity of each floating member 5 is 350 kg. In this way, according to the weight of the photovoltaic module 1 and the photovoltaic support 2, the buoyancy of the suspension device can be made larger than the weight of the photovoltaic module 1 and the photovoltaic support 2 by theoretical calculations to float the entire aquatic photovoltaic system on the water surface, thereby determining the requirements of the suspension device. The number of floating parts 5 included.
  • the pontoon material is a high molecular polyethylene
  • the service life is more than 15 years, and has the advantages of impact resistance, weather resistance, oxidation resistance, corrosion resistance, ultraviolet resistance, and the like, and is not affected by seawater. Corrosion of oil stains and aquatic organisms, no pollution to water quality.
  • the water-based photovoltaic power generation system provided by the exemplary embodiment of the present application is simple in structure, convenient in construction, and low in cost, compared with the conventional water-photovoltaic system for pouring concrete structures by water.
  • the maritime photovoltaic system further comprises a maritime photovoltaic system fixture 7 by which the entire maritime photovoltaic system is fixed at a designated location on the surface of the water.
  • the type of the water photovoltaic system fixing device 7 is not limited, and the cement block may be sunk to the bottom of the water, or may be connected to the connecting bolt 4 on the pontoon 3 by a hinge, or may be fixed by other means such as prefabricated piles.
  • a corridor 9 integral with the levitation device that allows maintenance personnel to pass can be constructed to facilitate later maintenance of the photovoltaic system.
  • a safety guardrail 8 can be built on the outside of the corridor.
  • a standard profile or the like may be used, and the method may be manufactured by welding, lapping, or the like.
  • a flat, one-piece profile holder 10 is produced.
  • the photovoltaic support 2 and the floating member 5 can be connected together by the profile support 10, which can greatly improve the stability of the entire surface photovoltaic system.
  • the photovoltaic module and the like are floated on the water surface by the floating component, which is not only polluted by water resources, but can be widely used in fish ponds, lakes and the like, and is important.
  • the water photovoltaic system provided by the present application has a simple overall structure and strong expandability, and can be arbitrarily changed in size and scale, and the construction process is convenient, the cost is low, and the application range is wide.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Photovoltaic Devices (AREA)

Abstract

一种水上光伏系统，包括光伏组件（1）、光伏支架（2）和悬浮装置，其中，所述光伏组件（1）固定在所述光伏支架（2）上，所述光伏支架（2）固定在所述悬浮装置上；所述悬浮装置包括多个漂浮部件（5），且每个所述漂浮部件（5）包括两两连接的多个浮筒（3）。

Description

水上光伏系统 技术领域
本申请的实施例涉及光伏技术领域，具体涉及一种水上光伏系统。
背景技术
太阳能资源以其资源量大、分布广泛等特点成为最具有发展价值的可再生资源。目前光伏电站一般建在人烟稀少的山地或荒漠中，或建在建筑屋顶等陆地。由于土地资源的匮乏，出现了建在水上的光伏系统，称为水上光伏系统。目前水上光伏系统的支架为固定安装方式，比如，将钢筋混凝土结构浇筑在水底，在钢筋混凝土结构上安装光伏支架和光伏组件等。由于水上光伏系统对水源要求较高，需要安装在水深深度较浅的区域，施工不便且成本高。
发明内容
根据本申请的实施例，提供了一种水上光伏系统，包括光伏组件、光伏支架和悬浮装置，其中，所述光伏组件固定在所述光伏支架上，所述光伏支架固定在所述悬浮装置上；所述悬浮装置包括多个漂浮部件，且每个所述漂浮部件包括两两连接的多个浮筒。
在一些实施方式中，每个所述漂浮部件包括两两连接的四个浮筒。
在一些实施方式中所述多个漂浮部件的大小基本相同，形状基本相同。
在一些实施方式中，每个所述浮筒为立方体。
在一些实施方式中，每个所述浮筒的尺寸约为500mm×500mm×400mm。
在一些实施方式中，每个所述浮筒的四周均安装有连接栓，用于将相邻的浮筒连接在一起。
在一些实施方式中，通过连接栓将所述光伏支架固定在所述漂浮部件上。
在一些实施方式中，还包括与所述悬浮装置成一体的走廊，所述走廊通过增加所述浮筒的数量来实现。在一些实施方式中，还包括安装于所述走廊的外侧的护栏。
在一些实施方式中，还包括用于连接所述光伏支架和所述漂浮部件的连接在一起的型材支架。
在一些实施方式中，所述型材支架为平面、一体式的型材支架。在一些实施方式中，还包括固定装置，其用于将水上光伏系统固定在水面指定位置。
在一些实施方式中，所述固定装置为铰链，所述铰链与所述浮筒连接。
根据本申请的实施例的水上光伏系统的优点包括：不需要占用土地，可以利用水面进行光伏发电，从而可以节约土地资源；结构简单，成本低廉；易于扩展，易于形成各种规模和大小的光伏系统。
附图说明
图1为根据本申请的实施例的水上光伏发电系统的示意图；
图2为根据本申请的实施例的漂浮部件；
图3为根据本申请的实施例的水上光伏发电系统的俯视图；
图4为根据本申请的进一步的实施例的水上光伏发电系统的示意图。
具体实施方式
为使本领域的技术人员更好地理解本申请的技术方案，下面结合附图和具体实施方式对本申请的实施例所提供的水上光伏系统作进一步详细描述。显然，所描述的实施例是本申请的一部分实施例，而不是全部的实施例。基于所描述的本申请的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本申请保护的范围。
现参照图1－4，其中，图1为根据本申请的实施例的水上光伏发电系统的示意图；图2 为根据本申请的实施例的漂浮部件；图3为根据本申请的实施例的水上光伏发电系统的俯视图；图4为根据本申请的进一步的实施例的水上光伏发电系统的示意图。如图1－3中所示，该水上光伏系统包括光伏组件1、光伏支架2和悬浮装置，所述光伏组件1固定在所述光伏支架2上，所述光伏支架2固定在悬浮装置上，所述悬浮装置能够悬浮在水面上。
所述悬浮装置由多个漂浮部件5构成，且所述多个漂浮部件5能够根据需要增减数量和进行布置。例如，每个所述漂浮部件5可以由多个块浮筒3构成，可根据需要增减浮筒3数量进行布置。
在一些实施方式中，每个所述漂浮部件5的形状基本相同，大小基本相同。
所述光伏组件1的类型不受限制，既可以是晶硅、也可以是非晶硅；既可以是柔性电池板，也可以是非柔性电池板，既可以有边框也可以无边框。且光伏电池板的尺寸、安装数量不受限制。为了更好的阐述本申请提供的水上光伏系统，本申请的一示例性实施例采用的光伏电池板为常见的1650×990×40mm规格、245wp的光伏组件。
所述光伏支架2的种类不受限制，可以根据光伏组件1的类型或者需要来设计光伏支架2，光伏支架2也可以采用追踪系统。所述光伏组件1可以本领域中已知的或未来开发的任何适当的方式安装在光伏支架2上。
可以通过连接栓4将光伏支架2固定在漂浮部件5上。所述连接栓4可以采用任何适当的数量、类型、大小和形状。
每个所述漂浮部件5可以由多个块浮筒3构成。比如，每个所述漂浮部件5由四块浮筒3构成。每块浮筒3的四周或四角均可以安装一个连接栓4，通过连接栓4可以将浮筒3组合在一起，也可以通过连接栓4固定外部结构，例如，光伏支架2。也就是说，在本申请的该示例性实施例中，所述的漂浮部件5通过四个浮筒3两两组合连接在一起，然后再通过连接栓4在漂浮部件5与光伏支架2连接处6将漂浮部件5和光伏支架2连接在一起。
所述漂浮部件5的数量和组合方式不受限制，可以根据光伏组件1和光伏支架2的重量来进行设计。此外所述浮筒3的类型、数量和组合方式不受限制，
本申请可以使用常用的一些部件或产品来实现，但并不限于此。在本申请的一示例性实施例中，所述漂浮部件5可以由浮筒构成。所述标准浮筒可以为市场上常见的浮筒，例如可 以为尺寸500×500×400mm的立方体。浮筒的材料例如可以为高分子聚乙烯，每个浮筒的四角可以安装一个连接栓4，通过连接栓4可以将浮筒组合在一起，也可以通过连接栓4固定外部结构。这种标准浮筒的承载力可以为例如350kg/m2。根据本申请的该示例性实施例，可以用四个标准浮筒两两组合后连接在一起构成一个漂浮部件5。根据标准浮筒的尺寸可知：每个漂浮部件5的承载力为350kg。这样，就可以根据光伏组件1和光伏支架2的重量，通过理论计算使得悬浮装置的浮力大于光伏组件1和光伏支架2的重量以便将整个水上光伏系统漂浮在水面上，从而确定悬浮装置所需包含的漂浮部件5的数量。
根据本申请的示例性实施例，由于所述浮筒材料为高分子聚乙烯，使用寿命在15年以上，具有抗冲击，抗气候变化，抗氧化，抗腐蚀，抗紫外线等优点，而且不受海水，油渍及水生物等侵蚀，对水质无污染。更重要的是，相对于传统的通过水上浇筑混凝土结构的水上光伏系统，本申请的示例性实施例提供的一种水上光伏发电系统，结构简单、施工方便，成本低廉。
根据本申请的进一步的实施例，该水上光伏系统还包括水上光伏系统固定装置7，通过所述水上光伏系统固定装置7将整个水上光伏系统固定在水面指定位置上。所述水上光伏系统固定装置7的种类不受限制，还可以将水泥块沉于水底，也可以通过铰链连接在浮筒3上的连接栓4处，也可以通过预制桩等其他方式固定。
现参照图4，根据本申请的进一步的实施例，可以通过增加浮筒3的数量，搭建出与悬浮装置成一体的、可以让维修人员通过的走廊9以方便后期对光伏系统的维护等工作，此外还可以在走廊外侧搭建出安全护栏8。
此外，根据本申请的进一步的实施例，针对水面条件不是太好的情况，比如多风、多浪等，为了增加整个系统的稳定性，可以使用标准型材等，通过焊接、搭接等方法制造出一个平面、一体的型材支架10。通过型材支架10可以将光伏支架2和漂浮部件5连接在一起，可以极大的提高整个水面光伏系统的稳定性。
综上所述，根据本申请的实施例的水上光伏系统，通过漂浮部件将光伏组件等漂浮在水面上，不仅对水资源没有污染，可以广泛的使用在鱼塘、湖泊等环境中，而且重要的是，本申请提供的水上光伏系统，整体结构简单，扩展性强，可任意改变尺寸和规模，施工过程方便，成本低廉，应用范围广泛。
可以理解的是，以上实施例仅仅是为了说明本申请的原理而采用的示例性实施例，本申请并不局限于此。对于本领域内的普通技术人员而言，在不脱离本申请的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为处于本申请的保护范围之内。本申请的保护范围仅由所附权利要求书的语言表述及其等价物所限定。

Claims (13)

  1. 一种水上光伏系统，包括光伏组件、光伏支架和悬浮装置，其中，所述光伏组件固定在所述光伏支架上，所述光伏支架固定在所述悬浮装置上；所述悬浮装置包括多个漂浮部件，且每个所述漂浮部件包括两两连接的多个浮筒。
  2. 根据权利要求1所述的光伏系统，其中，每个所述漂浮部件包括两两连接的四个浮筒。
  3. 根据权利要求1所述的光伏系统，其中，所述多个漂浮部件的大小基本相同，形状基本相同。
  4. 根据权利要求1所述的水上光伏系统，其中，每个所述浮筒为立方体。
  5. 根据权利要求1所述的水上光伏系统，其中，每个所述浮筒的尺寸约为500mm×500mm×400mm。
  6. 根据权利要求1所述的水上光伏系统，其中，每个所述浮筒的四周均安装有连接栓，用于将相邻的浮筒连接在一起。
  7. 根据权利要求1所述的水上光伏系统，其中，通过连接栓将所述光伏支架固定在所述漂浮部件上。
  8. 根据权利要求1所述的水上光伏系统，还包括与所述悬浮装置成一体的走廊，所述走廊通过增加所述浮筒的数量来实现。
  9. 根据权利要求8所述的水上光伏系统，还包括安装于所述走廊的外侧的护栏。
  10. 根据权利要求1所述的水上光伏系统，还包括用于连接所述光伏支架和所述漂浮部件的连接在一起的型材支架。
  11. 根据权利要求10所述的水上光伏系统，其中，所述型材支架为平面、一体式的型材支架。
  12. 根据权利要求1所述的水上光伏系统，还包括固定装置，其用于将水 上光伏系统固定在水面指定位置。
  13. 根据权利要求12所述的水上光伏系统，其中，所述固定装置为铰链，所述铰链与所述浮筒连接。
PCT/CN2016/106418 2016-01-04 2016-11-18 水上光伏系统 WO2017118228A1 (zh)

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