UA111641U - SOLAR ENERGY CONCENTRATOR BASED ON MOVING LENSES - Google Patents

Abstract

The moving lens solar energy concentrator consists of a photoelectric sensor with a microcontroller, a solar energy converter, and an array of lenses. The lens array is housed on four toothed movable rails that are attached to the gears on the frame of the solar energy converter.

Description

The useful model belongs to the field of solar energy and can be used to increase the efficiency of the use of photovoltaic devices. Namely, in arrays of solar panels, in solar collectors, mirrors of solar thermal power plants, in meteorological heliographs and any other concentrators of solar energy.

The known system (Patent of Ukraine OA 101602 concentrator of solar energy on the basis of a lens

Fresnel/ L.3. Boshkov, D.O. Pupkov, statement 11.03.2015, registration number и 2015 02148), manufactured in the form of a flat frame with concave grooves in which reflective elements made of material with a reflection coefficient of 80...95 95 are fixed. The concentrator contains a vertically located focusing frame, in the upper part of which is attached to the photo receiver, located at the focal distance from the reflective elements, with a protective screen, and the lower part of the focusing frame is connected to the middle part of the Fresnel lens.

The disadvantage of this system is that during the movement of the sun during the day, the angle of incidence of the sun's rays changes and this leads to a decrease in the efficiency of using the lens, since the sun's rays do not fall at a right angle to the lens.

Known system (Ukraine Patent No. 83089 Photoelectric concentrator and converter of solar energy/ Ya. A. Borovii, O. A. Andreev, V. Ye. Borova, V. O. Bernyk, I. S. Ostapin, application 03.07.2013, registration number и 2013 02869) works as follows. Depending on the season and place of installation of the device, direct its working surface in the southern direction and set the optimal angle of inclination to the Sun and the distance between the solar photocell and the lens. During the operation of the device, the flow of solar radiation passes through a transparent coating that transmits ultraviolet radiation, while reflecting infrared, which reduces overheating of the photocell. Then it falls on the upper ends of optical fibers and due to the physical phenomenon of total internal reflection, light is transmitted from one end to the other end of these fibers. From their lower ends, light enters the lens, concentrates and focuses on the solar photocell. With its help, the radiant energy of the Sun is transformed into electrical energy, which is diverted according to its purpose.

Residual heat from the photocell due to the convention is continuously discharged into the atmosphere. When the position of the Sun changes during the day, solar radiation constantly hits the optical fibers, the lens and the photocell without moving it.

The disadvantage of such a system is the complexity of the construction and its large dimensions.

The useful model is based on the task of improving the efficiency of the use of lenses in photovoltaic concentrators and solar energy converters.

The task is solved by the fact that we install a lens array above the solar energy converter, which is placed on four toothed rails, which allows us to coordinate the lens array with respect to the incidence of solar rays, increasing the efficiency of the useful model. According to the utility model, the array of lenses is placed on four toothed rails, retracting and retracting the rails, the lenses are coordinated according to the incidence of the sun's rays. The photoelectric sensor is responsible for coordination, made of three photoresistors, which are connected to a digital unit, which sends signals to the moving mechanisms depending on the reading of the sensor. The coordination of the panel is realized due to the active system of tracking the Sun. The tracking system is implemented using a sensor and an electric drive. The sensor consists of three photoresistors, which are separated by strips and connected to a microcontroller through an ADC, which generates a control signal for the electric drive.

The drawing shows a scheme of a solar energy concentrator based on moving lenses, which consists of a sensor 1, a moving mechanism 2, a solar energy converter C and an array of lenses 4.

A useful model works as follows. Sensor 1 analyzes the angle of incidence of the sun's rays relative to the array of lenses 4, transmitting a signal to the microcontroller that controls the moving mechanisms (toothed rails) 2 and directs the light collected by the lenses to the solar energy converter

Claims (1)

UTILITY MODEL FORMULA Solar energy concentrator based on moving lenses, consisting of a photoelectric sensor with a microcontroller, a solar energy converter and a lens array, which is distinguished by the fact that the lens array is placed on four toothed moving rails, which are connected to a gear on the frame of the solar energy converter . She E, en AAKT m shk I still y y y ! So what?