阅读说明：本技术 光伏组件表面灰尘检测系统 (photovoltaic module surface dust detecting system ) 是由 王迎春 于 2019-09-12 设计创作，主要内容包括：本发明涉及光伏发电技术领域,尤其涉及一种光伏组件表面灰尘检测系统。光伏组件表面灰尘检测系统,其包括光伏组件,一摆动组件,摆动组件的一端连接在光伏组件上,且可以绕连接处转动,摆动组件的另一端设有反光组件；一接受判定组件,接受判定组件设置在光伏组件的下边缘,其接受反光组件反射回来的光线,并根据光线的强度判断处光伏组件的表面是否有灰尘；本发明设计了一种用于检测光伏组件表面是否有灰尘的光伏组件灰尘检测系统。(The invention relates to the technical field of photovoltaic power generation, in particular to a system for detecting dust on the surface of a photovoltaic module. The surface dust detection system of the photovoltaic module comprises the photovoltaic module and a swinging module, wherein one end of the swinging module is connected to the photovoltaic module and can rotate around the connection part, and the other end of the swinging module is provided with a reflecting module; the receiving and judging assembly is arranged at the lower edge of the photovoltaic assembly, receives the light reflected by the reflecting assembly and judges whether dust exists on the surface of the photovoltaic assembly according to the intensity of the light; the invention designs a photovoltaic module dust detection system for detecting whether dust exists on the surface of a photovoltaic module.)

1. Photovoltaic module surface dust detecting system, it includes photovoltaic module, its characterized in that:

One end of the swinging component is connected to the photovoltaic component and can rotate around the connection part, and the other end of the swinging component is provided with a light reflecting component;

And the receiving and judging assembly is arranged at the lower edge of the photovoltaic assembly, receives the light reflected by the reflecting assembly and judges whether dust exists on the surface of the photovoltaic assembly according to the intensity of the light.

2. the photovoltaic module surface dust detection system of claim 1, wherein: the swing assembly comprises swing arms arranged on two sides of the photovoltaic assembly and a driving mechanism fixedly connected in the photovoltaic assembly, and the driving end of the driving mechanism is connected with one end of the swing arms on the two sides.

3. The photovoltaic module surface dust detection system of claim 1, wherein: the receiving and judging assembly comprises a box body connected to the lower edge of the photovoltaic assembly, a photosensitive resistor which changes according to light intensity is arranged in the box body, the photosensitive resistor is connected with a controller, and the controller is connected with a wireless communication module.

4. the photovoltaic module surface dust detection system of claim 3, wherein: the photovoltaic module on be equipped with the drive and accept the elevating system of judging subassembly up-and-down motion, elevating system including set up in the both sides of accepting the judgement subassembly and with the backup pad that the photovoltaic module is connected, be equipped with driving motor in the backup pad, the last lead screw that is equipped with of driving motor is equipped with the sliding block on the lead screw, the sliding block with accept the judgement subassembly and be connected.

Technical Field

The invention relates to the technical field of photovoltaic power generation, in particular to a system for detecting dust on the surface of a photovoltaic module.

background

As a common way to utilize solar energy resources, a solar photovoltaic power generation system has been widely used in life and production. The efficiency of a photovoltaic power generation system is a core factor for measuring the performance of a photovoltaic power station, and a plurality of factors influencing the efficiency of the photovoltaic power generation system are provided, wherein dust shielding is one of very important factors, and dust attached to the surface of a photovoltaic component can shield light, influence the absorption of the photovoltaic component on sunlight and reduce the power generation efficiency.

In order to reduce the influence of dust shielding on the efficiency of the photovoltaic power generation system, the dust on the surface of the photovoltaic module needs to be cleaned regularly, but certain cost is generated in cleaning. If the cleaning time interval is too long, the surface of the photovoltaic module can be shielded by dust, so that the power generation efficiency of the photovoltaic power generation system is influenced; frequent cleaning results in waste of water resources and an increase in power generation costs. In addition, because the photovoltaic power generation system is located outdoors, the effective and reasonable cleaning interval is difficult to set due to the influence of various factors such as regions, climate, sand wind, rain, atmospheric humidity and the like.

disclosure of Invention

The invention designs a photovoltaic module dust detection system for detecting whether dust exists on the surface of a photovoltaic module.

The technical scheme of the invention is as follows:

Photovoltaic module surface dust detecting system, it includes photovoltaic module, its characterized in that:

One end of the swinging component is connected to the photovoltaic component and can rotate around the connection part, and the other end of the swinging component is provided with a light reflecting component;

and the receiving and judging assembly is arranged at the lower edge of the photovoltaic assembly, receives the light reflected by the reflecting assembly and judges whether dust exists on the surface of the photovoltaic assembly according to the intensity of the light.

The swing assembly comprises swing arms arranged on two sides of the photovoltaic assembly and a driving mechanism fixedly connected in the photovoltaic assembly, and the driving end of the driving mechanism is connected with one end of the swing arms on the two sides.

The receiving and judging assembly comprises a box body connected to the lower edge of the photovoltaic assembly, a photosensitive resistor which changes according to light intensity is arranged in the box body, the photosensitive resistor is connected with a controller, and the controller is connected with a wireless communication module.

the photovoltaic module on be equipped with the drive and accept the elevating system of judging subassembly up-and-down motion, elevating system including set up in the both sides of accepting the judgement subassembly and with the backup pad that the photovoltaic module is connected, be equipped with driving motor in the backup pad, the last lead screw that is equipped with of driving motor is equipped with the sliding block on the lead screw, the sliding block with accept the judgement subassembly and be connected.

In conclusion, the invention has the following beneficial effects:

The invention utilizes sunlight to irradiate the surface of a photovoltaic module, a glass panel on the surface of the photovoltaic module can reflect a part of sunlight, an arranged swinging module can drive a reflecting module to swing within an angle range, so that the reflected light of each area of the photovoltaic module can be collected, the reflected light of the glass panel is reflected by the reflecting module to enter an acceptance judging module, when dust exists on the surface of the photovoltaic module, the reflected sunlight is reduced, the light intensity reflected to the acceptance judging module by the reflecting module is reduced, so that the dust accumulated on the surface of the photovoltaic module is judged, and the position information of the photovoltaic module is timely fed back to a control center of a photovoltaic power station by a wireless communication module in the acceptance judging module, so that a worker can quickly and accurately find the photovoltaic module and clear the photovoltaic module, and further, an arranged lifting mechanism can drive the acceptance judging module to move up and down, after descending, the upper end of the judgment component is parallel and level to the upper surface of the photovoltaic component, and sunlight is prevented from being shielded.

Drawings

FIG. 1 is a side view of the present invention;

FIG. 2 is a top view of the present invention

FIG. 3 is a schematic structural view of the lifting mechanism;

fig. 4 is a schematic diagram of the configuration of the acceptance determination unit.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.

As shown in fig. 1 to 4, the surface dust detection system of a photovoltaic module includes a photovoltaic module 1, and is characterized in that:

One end of the swinging component 2 is connected to the photovoltaic component and can rotate around the connection part, and the other end of the swinging component is provided with a reflecting component 3;

And the receiving and judging component 4 is arranged at the lower edge of the photovoltaic component, receives the light reflected by the reflecting component and judges whether dust exists on the surface of the photovoltaic component according to the intensity of the light.

The invention utilizes the reciprocating swing of the swing component to drive the light reflection component, so that the whole photovoltaic component can be detected, the completeness of a detection coverage range is ensured, the judgment component is received to judge whether dust exists on the surface of the photovoltaic component according to the intensity of received light, if the light intensity is weaker, the dust exists on the surface of the photovoltaic component, and if the light intensity is not changed, the dust does not exist on the surface of the photovoltaic component.

Swing subassembly 2 including setting up swing arm 20 in photovoltaic module both sides to and fixed connection is in the drive mechanism 21 of photovoltaic module, the drive end of drive mechanism 21 is connected with the one end of the swing arm 20 of both sides simultaneously, and here drives the swing arm through drive mechanism and swings at 90 degrees within ranges to can drive the surface that reflection of light subassembly covered whole photovoltaic module.

Accept and judge that subassembly 4 is including connecting the box body 40 at photovoltaic module lower limb, be equipped with the photo resistance 41 that changes according to the light intensity in the box body 40, photo resistance 41 is connected with controller 42, controller 42 is connected with wireless communication module 43, whether there is the dust on the surface that the controller judged photovoltaic module according to photo resistance's change, if then give photovoltaic power plant's control cabinet through wireless communication module position information transfer with this photovoltaic module, the staff of control cabinet can be accurate clear up photovoltaic module, reduce the number of times of patrolling and examining.

The photovoltaic module 1 is provided with a lifting mechanism 5 for driving the acceptance judging component 4 to move up and down, the lifting mechanism 5 comprises supporting plates 50 which are arranged at two sides of the acceptance judging component and connected with the photovoltaic module, a driving motor 51 is arranged on the supporting plates 50, a screw rod 52 is arranged on the driving motor 51, a sliding block 53 is arranged on the screw rod, the sliding block 53 is connected with the acceptance judging component 4, the lifting mechanism is designed and can drive the acceptance judging component to move up and down, when the detection is finished or the detection is not needed, the driving mechanism can withdraw the acceptance judging component, so that the upper end surface of the acceptance judging component is not higher than the surface of the photovoltaic module, a shadow area formed on the surface of the photovoltaic module by the acceptance judging component is avoided, the influence of the acceptance judging component on the power generation of the photovoltaic module is reduced, and on the other hand, the lifting, the light reflected by the reflector can accurately irradiate on the photoresistor of the receiving judging component, and the reliability and accuracy of detection are improved.

in conclusion, the invention has the following beneficial effects:

the invention utilizes sunlight to irradiate the surface of a photovoltaic module, a glass panel on the surface of the photovoltaic module can reflect a part of sunlight, an arranged swinging module can drive a reflecting module to swing within an angle range, so that the reflected light of each area of the photovoltaic module can be collected, the reflected light of the glass panel is reflected by the reflecting module to enter an acceptance judging module, when dust exists on the surface of the photovoltaic module, the reflected sunlight is reduced, the light intensity reflected to the acceptance judging module by the reflecting module is reduced, so that the dust accumulated on the surface of the photovoltaic module is judged, and the position information of the photovoltaic module is timely fed back to a control center of a photovoltaic power station by a wireless communication module in the acceptance judging module, so that a worker can quickly and accurately find the photovoltaic module and clear the photovoltaic module, and further, an arranged lifting mechanism can drive the acceptance judging module to move up and down, after descending, the upper end of the judgment component is parallel and level to the upper surface of the photovoltaic component, and sunlight is prevented from being shielded.