CN203038117U - Solar energy tracker - Google Patents

Solar energy tracker Download PDF

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Publication number
CN203038117U
CN203038117U CN2012204453420U CN201220445342U CN203038117U CN 203038117 U CN203038117 U CN 203038117U CN 2012204453420 U CN2012204453420 U CN 2012204453420U CN 201220445342 U CN201220445342 U CN 201220445342U CN 203038117 U CN203038117 U CN 203038117U
Authority
CN
China
Prior art keywords
stepper motor
circuit
chip microcomputer
solar panel
signal processing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2012204453420U
Other languages
Chinese (zh)
Inventor
赵君
宫正基
赵尔东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
QINGDAO ROYCE FEIERKE INDUSTRY AND TRADE Co Ltd
Original Assignee
QINGDAO ROYCE FEIERKE INDUSTRY AND TRADE Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by QINGDAO ROYCE FEIERKE INDUSTRY AND TRADE Co Ltd filed Critical QINGDAO ROYCE FEIERKE INDUSTRY AND TRADE Co Ltd
Priority to CN2012204453420U priority Critical patent/CN203038117U/en
Application granted granted Critical
Publication of CN203038117U publication Critical patent/CN203038117U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

The utility model relates to a solar energy tracker, comprising a mechanical portion and a control portion. The mechanical portion comprising supporting housing and a horizontal mobile device disposed in the supporting housing. The control portion is disposed on a bottom in the supporting housing. The control portion comprises a sample circuit, a simulation amplification circuit, an analog-digital conversion circuit, a one-chip microcomputer signal processing system, and a stepping motor drive circuit. The sample circuit is connected with a solar panel, and is used to sample real-time charging current of the solar panel to obtain a simulation current signal. The simulation current signal is converted to a digital signal through the simulation amplification circuit and the analog-digital conversion circuit and is stored in the one-chip microcomputer signal processing system. The one-chip microcomputer signal processing system is connected with the horizontal mobile device through the stepping motor drive circuit and controls the horizontal mobile device to operate. The sample circuit is used in the solar energy tracker to detect real-time charging current of the solar panel and truly reflect photoelectric conversion effect of the solar panel, so that the solar panel is under an optimal photoelectric conversion state and regulation precision is high.

Description

Solar tracking device
Technical field
The utility model relates to a kind of solar tracking device, specifically, relates to a kind of solar tracking device of adjusting the solar panel position by the photoelectric conversion result that detects whole solar panel.
Background technology
Because global energy is in short supply, impels people to remove to seek new substitute energy.Can be in the production-goods source in current exploitation, sun power is a kind of inexhaustible clean energy resource, is not subjected to the restriction of region, has the place of sunlight just can utilize.At present, it is electric energy with conversion of solar energy that solar facilities all adopts solar panel (photovoltaic panel), and this panel is fixedly laid, and has certain degree of tilt.Because the influence of earth rotation and revolution, the solar panel of fixedly laying can not change its angle accordingly according to the variation of light, and utilization factor is lower.In order to optimize solar panel to solar energy utilization rate, solar panel need be installed on the moving structure, this moving structure can constantly be located solar panel according to the power of sunray perpendicular to the sun.The conversion that existing tracker all utilizes photoelectric probe to detect light realizes the movement of solar panel, can not truly reflect the photoelectric conversion result of solar panel, low precision, and photoelectric transformation efficiency is not high.
The utility model content
The purpose of this utility model is at the solar tracking device above shortcomings, and a kind of easy for installation, working stability is reliable, load-bearing capacity is strong, photoelectric conversion rate is high new type solar energy tracker is provided.
The technical solution of the utility model is: a kind of solar tracking device, this tracker comprises mechanical part and control section, mechanical part comprises support housing and is arranged on the horizontally moving device of support housing inside, control section is arranged on the support housing inner bottom part, control section comprises sample circuit, analog amplify circuit, analog to digital conversion circuit, single-chip microcomputer signal processing system and stepper motor driving circuit, sample circuit is connected with solar panel, and to the instant charging current sampling of solar panel, obtain analog current signal, this signal converts digital signal to by analog amplify circuit amplification and analog to digital conversion circuit and is stored to the single-chip microcomputer signal processing system, the single-chip microcomputer signal processing system is connected with horizontally moving device by stepper motor driving circuit, and the work of control horizontally moving device.
Preferably, horizontally moving device comprises the reducer casing of horizontal rotating shaft, horizontal stepper motor and band brake electromagnet, one end of horizontal rotating shaft is connected with solar panel, and the other end is connected with horizontal stepper motor by reducer casing, and horizontal stepper motor is connected with stepper motor driving circuit.
Preferably, also be provided with vertical mobile device in the support housing, this vertical mobile device is connected with stepper motor driving circuit, and the single-chip microcomputer signal processing system is controlled vertical mobile device work by stepper motor driving circuit.
Preferably, vertically mobile device comprises housing, housing is connected with horizontal rotating shaft, enclosure interior is provided with the reducer casing of vertical rotation axis, vertical stepper motor and band brake electromagnet, vertically an end of rotation axis is connected with solar panel, the other end is connected with vertical stepper motor by reducer casing, and vertically stepper motor is connected with stepper motor driving circuit.
Preferably, the maximum position place, upper and lower both sides of the rotation axis rotation of the inherent vertically mobile device of support housing is provided with limit switch.
Preferably, control section also is provided with the environmental monitoring circuit, and this environmental monitoring circuit is connected with the single-chip microcomputer signal processing system.
Preferably, the environmental monitoring circuit is connected with two photodiodes that oppositely are placed on the support housing.
Preferably, the single-chip microcomputer of single-chip microcomputer signal processing system adopts the AT80C2051 system.
The beneficial effects of the utility model are: the utility model control section adopts sample circuit that the instant charging current of solar panel is detected, namely detect the photoelectric conversion result of whole solar panel, the photoelectric conversion result that can truly reflect solar panel, and by constantly detecting and judging, make solar panel be in best opto-electronic conversion state all the time, do not need probe, can need look for the high light position automatically, the degree of regulation height has also been avoided the invalid rotation of motor simultaneously; Mechanical part adopts reducer casing and stepper motor to rotate, and stability of rotation is reliable, and is easy to install, and support housing and rotation axis also are the bearing parts of solar panel, and load-bearing capacity is strong.
Description of drawings
Accompanying drawing 1 is the circuit theory diagrams of the utility model embodiment control section.
Accompanying drawing 2 is the mechanical part structural representation of the utility model embodiment one.
Accompanying drawing 3 is the mechanical part structural representation of the utility model embodiment two.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment one: as shown in Figure 1, 2, a kind of single-axis solar tracker, this tracker comprises mechanical part and control section 1, mechanical part comprises support housing 2 and is arranged on the horizontally moving device of support housing 2 inside, control section 1 is arranged on support housing 2 inner bottom parts, control section comprises sample circuit, analog amplify circuit, analog to digital conversion circuit, single-chip microcomputer signal processing system and stepper motor driving circuit, and the single-chip microcomputer of single-chip microcomputer signal processing system adopts the AT80C2051 system.Sample circuit is connected with solar panel, and to the instant charging current sampling of solar panel, obtain analog current signal, this signal converts digital signal to by analog amplify circuit amplification and analog to digital conversion circuit and is stored to the single-chip microcomputer signal processing system, the single-chip microcomputer signal processing system is connected with horizontally moving device by stepper motor driving circuit, and the work of control horizontally moving device.
Above-mentioned horizontally moving device comprises the reducer casing 5 of horizontal rotating shaft 3, horizontal stepper motor 4 and band brake electromagnet, one end of horizontal rotating shaft 1 is connected with solar panel, the other end is connected with horizontal stepper motor 4 by reducer casing 5, and horizontal stepper motor 4 is connected with stepper motor driving circuit.
Control section also is provided with the environmental monitoring circuit, and this environmental monitoring circuit is connected with the single-chip microcomputer signal processing system.The environmental monitoring circuit is connected with two photodiodes that oppositely are placed on the support housing 2.
The course of work: open solar tracking device, sample circuit is with the instant charging current sampling of solar panel during start, obtain a current signal A that can reflect the solar panels photoelectric conversion result, this signal converts the register storage that a digital signal is sent into single-chip microcomputer inside to through analog amplify circuit amplification and analog to digital conversion circuit, single-chip microcomputer sends an instruction and makes stepping angle of stepper motor rotation behind the time-delay 60S, stops then.Sub-sampling reads the data that store charging current data B and last time and compares again, if A<B, then single-chip microcomputer sends an instruction of advancing again, make the solar panels angle that readvances, simultaneously data B being deposited single-chip microcomputer time-delay 200ms reads data C again and compares, if B<C then continues to repeat said process, equate to enter holding state up to new sampled data and last data; If B<A is identical with said process just by opposite direction rotation, equate to enter holding state up to the new data that read and the last data that store.That is to say that start back solar panel rotates towards the strong direction of light, forwards the strongest position to and namely stops, and enters holding state.After entering holding state, single-chip microcomputer sends a turn signal every 360S and rotates 1.5 ° of step units by solar panels, reading data then also compares with the data of last storage, if the data that newly read greater than the data single-chip microcomputer that stores send an instruction of just changeing just changeing an angle and read again-compare-stores, equal with the data of preceding once storage up to the new data that reads.If the data that read are less than storage data, then single-chip microcomputer send angle of instruction counter-rotating of a counter-rotating and read again-compare-stores, equal with the data of preceding once storage up to the new data that reads.Adjust that single-chip microcomputer reads and time interval of comparing can change the sensitivity of control.Because native system is to be that the size of charging current is controlled rotation by the effect that detects the solar panel generating, therefore, more can reflect the duty of solar panels really, the while has also been avoided the invalid rotation of motor.
The environmental monitoring course of work: when external environment condition is cloudy day or on night in the evening, two photodiodes oppositely laying all detect unglazed, the environment measuring circuit all sends into a high level 1 for 2 pin and 3 pin of single-chip microcomputer, and this kind status tracking device is not worked, and enters dormant state.When two photodiodes are subjected to illumination different, when namely two photodiode output levels are one high and one low, illustrate that weather is normal.This moment, the Single-chip Controlling solar panel was searched the sun within the specific limits, in searching rotation process, approach when shining upon when forwarding solar panel to, solar panel can produce the above voltage of 12V, this voltage sends into a look-at-me for 6 pin (P3.2) of single-chip microcomputer through interrupting generative circuit, make solar panel stop to search and rotate, entering normal duty is holding state (the same).If there is not look-at-me to produce in search process, explanation is cloudy weather, and search enters dormant state after rotating a period of time.As long as when the level of single-chip microcomputer P3.0 and P3.1 mouth occurs when one high and one low, system enters the search state again.Horizontal stepper motor is each rotate before the P3.7 pin all to export a signal earlier and stop braking by Brake Electromagnet, rotate and finish the braking of adhesive again.
Embodiment two: shown in Fig. 1,3, a kind of two-axis solar tracker, this tracker comprises mechanical part and control section 1, mechanical part comprises support housing 2, support housing 2 inside are provided with horizontally moving device and vertical mobile device, control section 1 is arranged on support housing 2 inner bottom parts, control section 1 comprises sample circuit, analog amplify circuit, analog to digital conversion circuit, single-chip microcomputer signal processing system and stepper motor driving circuit, and the single-chip microcomputer of single-chip microcomputer signal processing system adopts the AT80C2051 system.Sample circuit is connected with solar panel, and to the instant charging current sampling of solar panel, obtain analog current signal, this signal converts digital signal to by analog amplify circuit amplification and analog to digital conversion circuit and is stored to the single-chip microcomputer signal processing system, the single-chip microcomputer signal processing system is connected with vertical mobile device with horizontally moving device respectively by stepper motor driving circuit, and control horizontally moving device and vertically mobile device work.
Above-mentioned horizontally moving device comprises the reducer casing 5 of horizontal rotating shaft 3, horizontal stepper motor 4 and band brake electromagnet, one end of horizontal rotating shaft 3 is connected with solar panel, the other end is connected with horizontal stepper motor 4 by reducer casing 5, and horizontal stepper motor 4 is connected with stepper motor driving circuit.
Above-mentioned vertical mobile device comprises housing 6, housing 6 is connected with horizontal rotating shaft 3, housing 6 inside are provided with the reducer casing 9 of vertical rotation axis 7, vertical stepper motor 8 and band brake electromagnet, vertically an end of rotation axis 7 is connected with solar panel, the other end is connected with vertical stepper motor 8 by reducer casing 9, and vertically stepper motor 8 is connected with stepper motor driving circuit.The maximum position place, upper and lower both sides that housing 6 inherent vertically rotation axiss rotate is provided with limit switch.
Control section also is provided with the environmental monitoring circuit, and this environmental monitoring circuit is connected with the single-chip microcomputer signal processing system.The environmental monitoring circuit is connected with two photodiodes that oppositely are placed on the support housing 2.
Its course of work and the environmental monitoring course of work are with embodiment one.But the control that horizontally rotates device and vertical wheelwork is that timesharing is carried out, and namely level control a period of time is vertically controlled a period of time again.Horizontal Stepping Motor Control signal is in P1.4, P1.5, P1.6, the output of P1.7 pin of single-chip microcomputer, vertically the Stepping Motor Control signal is in P1.0, P1.1, P1.2, the output of P1.3 pin of single-chip microcomputer, their working time is: level control 120 minutes, vertically control is 24 minutes, be P1.4-P1.7 output 120 minutes, P1.4-P1.7 work 24 minutes, circulation so successively.

Claims (8)

1. solar tracking device, this tracker comprises mechanical part and control section, it is characterized in that: mechanical part comprises support housing and is arranged on the horizontally moving device of support housing inside, control section is arranged on the support housing inner bottom part, control section comprises sample circuit, analog amplify circuit, analog to digital conversion circuit, single-chip microcomputer signal processing system and stepper motor driving circuit, sample circuit is connected with solar panel, and to the instant charging current sampling of solar panel, obtain analog current signal, this signal amplifies by analog amplify circuit and analog to digital conversion circuit converts the digital current signal storage to the single-chip microcomputer signal processing system, the single-chip microcomputer signal processing system is connected with horizontally moving device by stepper motor driving circuit, and the work of control horizontally moving device.
2. solar tracking device as claimed in claim 1, it is characterized in that: horizontally moving device comprises the reducer casing of horizontal rotating shaft, horizontal stepper motor and band brake electromagnet, one end of horizontal rotating shaft is connected with solar panel, the other end is connected with horizontal stepper motor by reducer casing, and horizontal stepper motor is connected with stepper motor driving circuit.
3. solar tracking device as claimed in claim 2, it is characterized in that: also be provided with vertical mobile device in the support housing, this vertical mobile device is connected with stepper motor driving circuit, and the single-chip microcomputer signal processing system is controlled vertical mobile device work by stepper motor driving circuit.
4. solar tracking device as claimed in claim 3, it is characterized in that: vertically mobile device comprises housing, housing is connected with horizontal rotating shaft, enclosure interior is provided with the reducer casing of vertical rotation axis, vertical stepper motor and band brake electromagnet, vertically an end of rotation axis is connected with solar panel, the other end is connected with vertical stepper motor by reducer casing, and vertically stepper motor is connected with stepper motor driving circuit.
5. solar tracking device as claimed in claim 4 is characterized in that: the maximum position place, upper and lower both sides that the rotation axis of the inherent vertically mobile device of housing rotates is provided with limit switch.
6. solar tracking device as claimed in claim 1, it is characterized in that: control section also is provided with the environmental monitoring circuit, and this environmental monitoring circuit is connected with the single-chip microcomputer signal processing system.
7. solar tracking device as claimed in claim 6, it is characterized in that: the environmental monitoring circuit is connected with two photodiodes that oppositely are placed on the support housing.
8. as any described solar tracking device of claim 1 to 7, it is characterized in that: the single-chip microcomputer of single-chip microcomputer signal processing system adopts the AT80C2051 system.
CN2012204453420U 2012-09-04 2012-09-04 Solar energy tracker Expired - Fee Related CN203038117U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012204453420U CN203038117U (en) 2012-09-04 2012-09-04 Solar energy tracker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012204453420U CN203038117U (en) 2012-09-04 2012-09-04 Solar energy tracker

Publications (1)

Publication Number Publication Date
CN203038117U true CN203038117U (en) 2013-07-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012204453420U Expired - Fee Related CN203038117U (en) 2012-09-04 2012-09-04 Solar energy tracker

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102866711A (en) * 2012-09-04 2013-01-09 青岛莱斯菲尔科工贸有限公司 Solar tracker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102866711A (en) * 2012-09-04 2013-01-09 青岛莱斯菲尔科工贸有限公司 Solar tracker
CN102866711B (en) * 2012-09-04 2016-01-06 青岛莱斯菲尔科工贸有限公司 Solar tracking device

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130703

Termination date: 20150904

EXPY Termination of patent right or utility model