TWI321640B - Pressure difference sun tracking system - Google Patents

Description

1321640 9622TWJ1 Differential Chasing System 9. Invention: 【Technical Fields of the Invention】 This technology belongs to the chasing system, especially the pressure difference between the refrigerant accumulators on both sides of the solar raft is used as the detection and location of the sun offset. Adjust the system's chase system. [Prior Art] The prior art of FIG. 1 shows a conventional solar panel chasing system in which the light sensing unit is disposed in four centers of the center of the substrate 105 by four light sensing elements 101, 102, 103, 104. A sleeve 120 having a plane parallel to the substrate 1〇5 is opened above, and the cover is around the sensing elements 101, 102, 1〇3, 1〇4. The sleeve 120 has a highly uniform side wall that forms a conventional day tracking system. Photovoltaic unit 108 is disposed around the surface of substrate 105 to receive solar energy' and then convert solar energy into electrical energy. When the sun is directed from directly above to this conventional chasing system, in theory, the four light sensing elements 101, 102, 103, 104 receive a uniform amount of light. In order to allow the photovoltaic unit 108 to receive strong sunlight, the photovoltaic unit 108 must always face the position where the sun is located. Therefore, the orientation of the substrate 105 can be controlled to track the position of the sun and the position can be automatically corrected. Against the sun, the optoelectronic component 108 can receive direct sunlight all the time, which is important for solar photovoltaic systems. The theory of this chasing system is: when the sun is offset from the directly above position, the sleeve 120 is 5 1321640 % 22 TWJg differential day system \ · the side wall shadow will gradually cover the adjacent light sensing elements, resulting in The four light sensing components respectively detect the enhancement and attenuation of the light. After these signals are transmitted to the control unit, the tracking system can be driven to adjust the direction to a certain direction, so that the photoelectric unit can receive the direct sun again. Light. • Referring to Figure 1, it is assumed that the sun is now directly above the sensing system, and the four light sensing elements 101-104 receive light of the same intensity; when the sun moves to the left, the light R1 strikes the sleeve 120 according to φ. The light sensing element 101 is gradually obscured by the shadow of the side wall of the sleeve 120. The light intensity received by the light sensing element 101 is weak relative to the light sensing element 103. After these signals are transmitted to the control unit, they can be driven. The stepping motor turns the tracking system to a certain direction, so that the tracking effect can be achieved, so that the photovoltaic unit 108 can always maintain relatively strong light illumination. A disadvantage of the prior art is that the light sensing element only provides a sun offset signal that does not provide power to deflect the solar panel to a desired location. Such a system requires power to the deflection system to provide the same solar panel. SUMMARY OF THE INVENTION The present technology provides a refrigerant accumulator that can detect a sun offset signal while also providing power to deflect the solar panel to a desired position. Such a system does not require additional power to the deflection system. [Embodiment] 6 9622TWJ1 Differential Tracking System The control system 26 shown in the previous figure is shown in the figure, and is connected by the pressure difference actuating device 23 and the mechanical matching unit 25. The differential pressure actuating device 23 includes an actuating lever 233, a first pneumatic cylinder 231 and a second pneumatic cylinder 232. The first refrigerant accumulator tank 201 is connected to the first pneumatic cylinder 231 by the pressure transmission line 241. The second refrigerant accumulator tank 2 is connected to the second pneumatic cylinder 232 via the pressure transmission line 242; when the first pneumatic cylinder 231 When the pressure of the second pneumatic cylinder 232 is equal, the actuating lever 233 is stationary. When the pressure of the first pneumatic cylinder 231 is greater than the pressure of the second pneumatic cylinder 232, the actuating lever 233 is pushed upward by the first pressure. When the pressure of the first pneumatic cylinder 231 is greater than the pressure of the second pneumatic cylinder 232, the actuating lever 233 is pushed upward. When the pressure of the first pneumatic cylinder 231 is less than the pressure of the second pneumatic cylinder 232, the actuating lever 233 is pushed downward. This upward and downward thrust 'by the operation of the mechanical weighing unit 25 can adjust the solar panel substrate 105 to shift in a certain direction to achieve the function of chasing the sun. Figure 4 is a differential pressure tracking system of the third embodiment of the present invention. The foregoing embodiment of the present invention is shown. A pressure regulating valve 27 can be added to the pressure transmission line 241 for adjusting the refrigerant accumulator tank 201 and the first embodiment. The sensitivity of the pressure balance between the pneumatic cylinders 231. Figure 5. Functional block diagram of the present technology shows the principle of the art of the present invention. The first refrigerant accumulator 201 generates a first air pressure and transmits it to the control system 26; the second refrigerant accumulator 202 generates a second air pressure for transmission to the control system 26 When there is a pressure difference between the first air pressure and the second air pressure, the solar panel substrate is deflected at a certain angle according to a preset manner. 1321640

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Claims (1)

1321640 9622TWJS differential chasing system 5. The differential pressure chasing system described in claim 2, further comprising: a pressure regulating valve disposed in the aforementioned pressure transmission line for adjusting the pressure of the output. 12