WO2014005626A1

WO2014005626A1 - Floatable solar installation module and solar installation

Info

Publication number: WO2014005626A1
Application number: PCT/EP2012/062941
Authority: WO
Inventors: Josef Peter Kurath-Grollmann
Original assignee: Staubli, Kurath & Partner Ag
Priority date: 2012-07-03
Filing date: 2012-07-03
Publication date: 2014-01-09

Abstract

The invention relates to a floatable solar installation module (1) comprising a solar panel arrangement (10) which is arranged on a float (40). Said solar panel arrangement (10) is connected to the float (40) by means of a single-post mast (30). Said solar installation module (1), which is robust with respect to environmental conditions, in particular with respect to the formation of ice on the water surface, can be constructed in an economical manner.

Description

Floating solar system module and solar system

The present invention relates to a buoyant

Solar system module. Furthermore, the invention relates to a buoyant solar system with such solar system modules.

Floating solar systems are known from the prior art. For example, EP 2299499 AI discloses a floating on a reservoir solar system with several

Photovoltaic elements, which are arranged on a plurality of coupled buoyant modules. These modules each have a float, which carries the photovoltaic elements above the water surface of the reservoir.

The object of the present invention is an improved solar system module and an improved

Specify solar system.

This task is by a buoyant

Solar system module with the features of claim 1 and a solar system according to the accompanying claims. Further embodiments according to the invention are specified in the further claims.

Furthermore, the present invention relates to a

Floating solar power module with a solar panel Arrangement which is arranged on a buoyancy body. The solar panel arrangement is connected via a one-piece mast with the buoyant body. As a result, a cost-effective design of the solar system module is achieved, which is robust against environmental effects.

The term "solar system" is to be understood as an apparatus which converts the energy of the sunlight into a technically usable form. In this case, the solar system comprises one or more solar power modules, on each of which one or more solar panels are arranged, each comprising a plurality of solar cells, which the actual

Take over the conversion of solar energy.

In one example, the solar unit is a photovoltaic unit that converts sunlight directly into electrical energy, thus providing direct power generation. In this case, the photovoltaic unit is constructed, for example, from a multiplicity of interconnected solar cells, that is to say from a series of silicon-based disks or fragments thereof. In these solar cells, the actual conversion of solar energy takes place

electrical energy instead. For example, the

individual solar cells mounted in or on a common frame and / or electrically interconnected.

For example, the solar unit is a sunlight collector. Sunlight is converted into heat energy, so For example, a fluid such as water or air is heated and this heat energy then for further use

provided. The heat energy can be used, for example, for heating or for the indirect production of electrical energy.

The term "buoyancy body" is that part of the inventive support structure to understand that the essential part of carrying the solar unit

required buoyancy force generated. This corresponds to the

Size of the buoyancy the total weight of the buoyant body together with the solar panel and including a maximum allowable additional load, for example a maximum

permissible load, which results from the deposition of ice and / or snow or from the action of wind. About the cable winch and the anchoring cable is the

Floating body connected to the bottom of the water on which the solar system floats.

The term "water surface" is to be understood as any type of body of water, for example, a standing one or one

flowing water, a lake, a reservoir, a

Coastal waters or the sea. The surface of this

Water surface is called water surface.

Surprisingly, the inventive allows

Solar system module a cost-effective, robust construction and efficient operation, especially a simple Maintenance. This is particularly advantageous for solar systems, so that competitive prices can be achieved with the solar-technologically produced electrical energy.

Because of the steplike mast will be a small

Attack surface for external influences and thus a reliable operation of the solar system module achieved. This is particularly advantageous in difficult environmental conditions such as snow and / or ice formation, in strong wind loads and / or high waves or in the effects of

disturbing objects, for example when floating

Flotsam.

Furthermore, the single-mast mast causes only the

functionally necessary solar panel arrangement appears, so that a largely unobstructed view is achieved parallel to the water surface.

In particular, a statically optimized solar system module is achieved by means of the steplike mast, which is designed as a lightweight construction. This results in a robust construction and reliable operation of the

Solar system module reached.

Furthermore, thanks to the inventive design of the

Solar plant module the operation and maintenance of both the solar system and the individual solar modules, can be carried out in an unproblematic way by the Maintenance and inspection work can be performed from a floating platform.

In one example, the single-column mast allows for easy raising or lowering of the solar panel assembly and thus setting an appropriate position for maintenance work.

In one embodiment of the present invention, the solar panel arrangement is substantially umbrella-shaped and / or the solar panel arrangement forms together with the

one-piece mast a mushroom-shaped arrangement. As a result, a compact and robust design of the solar system module is achieved.

In a further embodiment of the present invention, the solar panel arrangement is substantially round-edged and / or disc-shaped, in particular at least

approximately circular. This will be a good one

Area utilization, especially in waters with

irregular shoreline, reached.

In a further embodiment of the present invention, the solar panel assembly is on a support frame

arranged, which is connected to the einstieligen mast, in particular adjustable and / or rigid. As a result, an efficient assembly of the solar panels is achieved. In a further embodiment of the preceding

Embodiment, the support frame comprises components,

in particular struts and / or bracing, which form a flat and / or truss-like support structure. As a result, a particularly light and / or stable construction of the frame can be achieved. In addition, the solar panels are luftumflült and can so on deeper

Operating temperature to be maintained. This achieves high efficiency.

In a further embodiment of the present invention, the solar panel arrangement has a plurality of

Solar panels, which are rigidly connected to each other, in particular via a bracing and / or a

Bracing. This will be a common and therefore

efficient operation, in particular a common one

Adjust which reaches solar panels.

In a further embodiment of the present invention, the solar panel arrangement comprises a plurality of

Solar panels, which are arranged regularly and / or matrix-like, in particular line by line and / or columns.

Solar panels, which are arranged at spaced Abut cross beams and these cross members are each connected by means of a transverse thereto truss bracing and / or a transverse thereto arranged direct longitudinal connection. As a result, an extremely stable construction with low weight is achieved.

With the direct longitudinal connection, a lighter and cheaper construction of the solar panel assembly can be achieved. In this case, the direct longitudinal connection with a pull rope or with a substantially only train

claimed profile, e.g. a self-supporting one

Beam profile to be realized.

In a further embodiment of the preceding example, the spaced-apart cross members are

exclusively connected via the direct longitudinal connection, which is connected in particular via at least one traction cable, with a, in particular centrally supported, spar.

This can be dispensed with a truss bracing of the cross member, so that a smaller attack surface for external influences, especially wind loads, is achieved.

In a further embodiment of the present invention, the direct longitudinal connection via a bracing, in particular via at least one pull cable, connected to a, in particular centrally supported, spar. Thereby a stable Abstützimg the solar panel arrangement is achieved with little attack surface for wind loads.

In a further embodiment of the present invention, the solar panel arrangement comprises at least one tensioning cross member, which is connected via a bracing, in particular via at least one pull cable, with a, in particular centrally supported, spar. As a result, a light and stable support of the solar panel assembly is achieved.

Solar panels, which are each arranged inclined and spaced from each other, and in particular

arranged sawtooth and / or each having downwardly open spaces. This allows snow and ice loads to slip off the solar panels and fall directly into the underlying water. This greatly simplifies winter operation in particular.

In a further embodiment of the present invention, the einstielige mast is constructed in two parts, with a lower part and an upper part which is adjustable relative to the lower part and rigid with the solar panel assembly, in particular with the support frame

connected is. In a further embodiment of the present invention, the einstielige mast on a hinge, by means of which the solar panel assembly, in particular the support frame and / or an upper part of the mast, adjustable, in particular horizontally rotatable. This can be an efficient

Aligning and / or tracking the solar panel arrangement can be achieved according to the course of the sun.

In a further embodiment of the present invention, the einstielige mast on a tilting device, by means of which the solar panel assembly, in particular the support frame and / or an upper part of the mast, adjustable, in particular vertically tiltable, is. As a result, an efficient alignment of the solar panel arrangement can be achieved both in accordance with the course of the day of the sun and according to the seasonal height of the sun track.

In combination with the aforementioned pivot, the solar panels can biaxially the course of the sun

be tracked.

In one embodiment, the tilting device is set such that the deposition of snow loads is reduced or eliminated altogether. In another embodiment, for example in a storm, the tilting device is set such that the

Wind load is reduced. In a further embodiment of the present invention, the solar panel arrangement comprises bifacial solar panels. Such solar panels can convert daylight and sunlight into electrical power on the front and back panels. By such solar panels in combination with the solar system module according to the invention, a gain of the additional gains and thus a higher efficiency is achieved by ground reflection (albedo gain).

In a further embodiment of the present invention, the buoyant body has a device for setting a predetermined diving depth, in particular at least one of the following:

- Anchoring, in particular at least one

Anchoring cable,

- at least one additional swimmer, or

- A load balancing device, in particular a valve and / or a pump.

As a result, the vertical position of the solar system module can be adjusted, for example by the

Anchoring cable is shortened or lengthened. In this case, the vertical position can be manually set or adjusted and automatically controlled and / or regulated, for example by means of a control and / or

Control device. For example, this allows one

automatic adjustment during operation, especially when changing the height of the water surface. In one example, the buoyant body is substantially cylindrical, in particular tubular and / or concentrically divided. This will make a simple production

reached. In another example, the buoyant body is substantially formed as a tube or a barrel.

As a result, the buoyant body can be constructed with inexpensive and standardized components. For example, the axis of the tube or the axis of the barrel is in

Essentially arranged perpendicular to the water surface.

Furthermore, the present invention relates to a solar system with a variety of identically constructed

Solar system modules according to one of claims 1 to 13, wherein these are arranged in particular side by side to a field and / or each autonomously operable.

As a result, a cost-effective use of existing elements is achieved. Thanks to this modular design, the solar system can be flexibly adapted to the given conditions, for example to the available water surface. In this case, the individual modules, in particular fixed or movable, can be coupled to one another. In addition, these modules can be considered compact

individual units are serviced and / or replaced.

In a further embodiment of the inventive solar system, the solar system modules are arranged such that the solar system modules largely regularly spaced, in particular line by line and / or column-oriented islands on a

Form water surface. This will be a high

Flexibility in the arrangement achieved. In addition, a mutual shading of the solar system modules can be largely avoided.

In one example, the solar system modules are under

Considering the local horizon conditions placed in order to achieve the longest possible solar radiation, for example, according to a deep east-west horizon. In another example, the

Solar system modules arranged such that possible

Shadows are avoided in low sun.

It is expressly stated that each

Combination of the aforementioned examples and

Embodiments or combinations of combinations may be the subject of a further combination. Only those combinations are excluded that would lead to a contradiction.

Further embodiments of the present invention are explained below with reference to figures. Show it:

1 is a simplified front perspective view of an embodiment of the above

Solar system module 1 according to the invention, in which the solar panel assembly 10 is connected via a one-piece mast 30 with a buoyant body 40;

Fig. 2 is a simplified schematic representation of a

Embodiment of a solar system with a

Variety of solar system modules according to Figure 1, which are arranged on a water surface.

3 is a simplified perspective rear view from above of the solar system module 1 according to FIG. 1;

4 shows a simplified perspective front view, laterally from below of the solar system module 1 according to FIG. 1 with truss bracing 18;

5 shows a simplified perspective rear view from below of the solar system module 1 according to FIG. 1; and FIG. 6 shows a simplified perspective front view, laterally from below, of the solar system module 1 according to FIG. 4, but without truss bracing 18.

The following statements are examples and are not intended to limit the invention in any way.

1 shows a simplified perspective front view from above of an exemplary embodiment of the solar system module 1 according to the invention.

The solar power module 1 has a solar panel assembly 10 with a plurality of solar panels 12, a einstieligen Mast in the form of a support tube 30 and a buoyant body in the form of an air-filled barrel 40, which is held by means of anchoring at the bottom of the water below the water surface (dashed lines).

The solar panel assembly 10 includes a support frame in the form of a support frame 14 and a plurality of

similarly constructed solar panels 12, which on the

Shoring 14 are arranged. In this case, the support frame 14 is adjustably connected to the support tube 30.

The solar panels 12 are each inclined, parallel

aligned with each other and arranged in a sawtooth, so that the shape of the solar system module 1 corresponds to a so-called shed roof, in which the individual solar panels form the riders of the shed roof. Further, the solar panels 12 are spaced from each other and each have downwardly open spaces. As a result, snow loads can slide downwards.

Furthermore, the solar panels 12 are arranged in rows and columns, so that they form a regular matrix structure. The rows at the leading and trailing edges of the solar panel assembly 10 contain fewer solar panels 12 (in this example, 4 for the first and 8 in the second) than the middle rows (16 in this example), thus shortening the row length in the edge is. This results in a disc-shaped matrix structure whose corners in Essentially beveled. In this example

The matrix structure is approximately one octagon. The edge of this solar panel assembly 10 is therefore in

Essentially round-edged and at least approximately circular.

The solar panel assembly 10 is substantially

umbrella-shaped and connected via the framework 14 with the support tube 30. Therefore, the solar panel assembly 10 together with the support tube 30 forms a mushroom-shaped

Carrying structure.

The bin 40 comprises a device for setting a predetermined depth in the form of an anchoring, so that the bin 40 in the operation of the solar system module 1, i. if it is inserted in a body of water and floats in it, by anchoring in a defined position

is held. In this example, the cable length of the anchorage is dimensioned such that the barrel 40 is submerged below the water surface (dashed lines) and the solar panel assembly 10 above

Water surface is positioned (solid lines). Such a depth can also be adjusted with one or more additional floats or a load balancing device, for example a pump and / or a valve. The structure of the support frame 14 and its connection to the support tube 30 will be explained in more detail with reference to FIGS 4 and 5.

Fig. 2 shows a simplified schematic representation of an embodiment of a solar system with a plurality of solar system modules 1 according to FIG. 1. The solar system modules 1 are arranged on a water surface, for example on the water surface of a reservoir.

The solar system modules 1 are arranged such that they are largely regularly spaced islands on the

Form water surface, which are aligned both line by line and column by column. The distance is chosen such that a mutual shading of the

Solar system modules reduced to a minimum or

completely avoided.

FIG. 3 shows a simplified perspective rear view from above of the solar system module according to FIG. 1.

The support frame 14 comprises a plurality of struts and braces, which form a truss-like support structure. As a result, the individual solar panels are coupled to each other and form a stable unit. In this example, the support frame 14, a plurality of spaced-apart cross members 16, two clamping cross member 17, two arranged in parallel

Truss bracing 18, four direct longitudinal connections in the form of steel profiles 19, a centrally arranged and centrally supported spar 20, and a variety of

Traction cables 22.

The solar panels 12 abut the cross members 16.

In addition, the cross member 16 are each connected to each other via the two truss braces 18 arranged transversely thereto and the four steel profiles 19 arranged transversely thereto. The steel sections 19 are connected via the traction cables 22 to the spar 20. The cross member 16 are reinforced by the two clamping cross member 17.

In addition, the spar acts as a strut, on the one hand supports the support frame 14 and on the other hand is rigidly connected via other traction cables with the support tube. These

Pull ropes thus form a support or tension, similar to a suspension bridge. As a result, a light and stable suspension of the support frame 14 is achieved.

Fig. 4 shows a simplified perspective

Front view, laterally from below of the solar system module according to FIG. 1. The support tube 30 is constructed in two parts with a lower part 32 and an upper part 34 which is adjustable relative to the lower part 32. The upper part 34 is rigidly connected to the support frame 14 and the lower part 32 is connected to the barrel 40 according to FIG. 1 (not

shown).

The support tube 30 includes a hinge 36, by means of which the support frame 14 is horizontally rotatable together with the upper part 34 of the support tube. In addition, the support tube 30 comprises a tilting device in the form of a hydraulic cylinder 38, by means of which the support frame 14 and the upper part 34 of the

Support tube 30 can be tilted vertically. This allows the solar panel assembly 10 on the daily course of the

Sunrise and / or the seasonal height of the

Sun orbit to be aligned.

5 shows a simplified perspective rear view from below of the solar system module according to FIG. 1.

Due to the lateral support in the form of lateral

Aspiration 35 will be a good support of the lateral

Loads on the lower part of the support tube 30th

reached. The support opens in a rotatable mounting, so that the horizontal rotation through the

Support is not further affected. This is particularly advantageous in laterally acting loads, for example in lateral wind loads. Fig. 6 shows a simplified perspective front view, laterally from below of the solar system module 1 according to FIG. 4, but without the two

Truss bracing is constructed.

The solar panel assembly 10 is supported by the support frame 14 on the support tube 30. The support frame 14 includes the spaced-apart cross member 16, the four steel sections 19 and the traction cables 22. Instead of steel profiles, other components can be used,

For example, traction cables, as these are essentially claimed only on train.

The cross member 16 are connected via the direct longitudinal connections 19, a truss bracing of the cross member 16 is replaced by the tension with the four steel sections 19 together with the tension cables 22. As a result, small attack surfaces for wind loads, especially in storm, achieved.

Claims

Pa s claims

1. Floating solar system module (1) with a

Solar panel arrangement (10), which on a

Buoyancy body (40) is arranged,

wherein the solar panel assembly (10) via a

one-piece mast (30) is connected to the buoyant body (40).

2. solar power module (1) according to claim 1, wherein the

Solar panel assembly (10) is substantially umbrella-shaped and / or the solar panel assembly (10) together with the einstieligen mast (30) a mushroom-shaped

Arrangement forms.

3. solar power module (1) according to claim 1 or 2, wherein the solar panel assembly (10) substantially

round-edged and / or disc-shaped, in particular at least approximately circular.

4. solar power module (1) according to one of the preceding

Claims, wherein the solar panel assembly (10) on a support frame (14) is arranged, which is connected to the einstieligen mast (30), in particular adjustable and / or rigid.

5. solar system module (1) according to the preceding claim, wherein the support frame (14) comprises components, in particular struts and / or braces, which form a flat and / or truss-like support structure.

6. solar system module (1) according to one of the preceding

Claims, wherein the solar panel assembly (10) has a plurality of solar panels (12) which abut spaced cross members (16) and these cross members (16) each by means of a transverse thereto truss bracing (18) and / or a transverse thereto arranged direct longitudinal connection (19) are connected.

7. solar system module (1) according to the preceding claim, wherein the spaced-apart cross member (16) exclusively via the direct Längsverstrebung (19) are connected, which in particular via at least one pull rope (22), with a, in particular centrally supported, spar (20 ) connected is.

8. solar system module (1) according to one of the preceding

Claims, wherein the solar panel assembly (10) comprises a plurality of solar panels (12), which are each arranged inclined and spaced from each other, and arranged in particular sawtooth and / or each have downwardly open spaces.

9. solar system module (1) according to one of the preceding

Claims, wherein the einstielige mast (30) is constructed in two parts, with a lower part (32) and an upper part (34) which is adjustable relative to the lower part (32) and with the solar panel assembly (10), in particular with the support frame (14), rigidly connected.

10. solar system module (1) according to one of the preceding

Claims, wherein the einstielige mast (30) a

Pivot (36), by means of which the solar panel arrangement (10), in particular the support frame (14) and / or an upper part (34) of the mast (30),

adjustable, in particular horizontally rotatable.

11. solar system module (1) according to one of the preceding

Claims, wherein the einstielige mast (30) a

Tilting device (38), by means of which the

Solar panel arrangement (10), in particular the

Support frame (14) and / or an upper part (34) of the mast (30), adjustable, in particular vertically tilted, is.

12. solar system module (1) according to one of the preceding

Claims, wherein the solar panel arrangement (10)

Includes bifacial solar panels (12). Solar system module (1) according to the preceding claim, wherein the buoyant body (40) has a device for setting a predetermined diving depth, in particular at least one of the following:

- Anchoring, in particular at least one

Anchor cable,

- at least one additional swimmer, or

- A load balancing device, in particular a

Valve and / or a pump.

14. Solar system with a variety of similar

constructed solar system modules (1) according to one of claims 1 to 13, wherein this particular

arranged side by side to a field and / or are each autonomously operable.

Solar system according to claim 14, wherein the

Solar system modules (1) are arranged such that the solar system modules (1) largely regularly spaced, in particular line by line and / or columns aligned islands on a

Form water surface.