CN102937340A - Open ring type heliostat tracking controller of tower type solar collector system - Google Patents
Open ring type heliostat tracking controller of tower type solar collector system Download PDFInfo
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- CN102937340A CN102937340A CN2012104774040A CN201210477404A CN102937340A CN 102937340 A CN102937340 A CN 102937340A CN 2012104774040 A CN2012104774040 A CN 2012104774040A CN 201210477404 A CN201210477404 A CN 201210477404A CN 102937340 A CN102937340 A CN 102937340A
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/47—Mountings or tracking
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Abstract
The invention relates to an open ring type heliostat tracking controller of a tower type solar collector system, which is a control chip comprising a communication interface circuit, an expanding storage unit, a manual control key circuit, a watchdog circuit, a power failure detection circuit, a real-time clock circuit and an alarm signal receiving circuit. A program for calculating and controlling rotation of azimuth and elevation angle motors of a heliostat is set in the control chip, an external monitoring computer sends control command and data to the control chip through a communication interface, and the control chip receives the control command sent by the monitoring computer, then analyzes and processes the control command, and controls the azimuth and elevation angle motors to rotate, so as to further control the heliostat to run in a specified manner; and the azimuth motor and the elevation angle motor feed respective rotation angle to the control chip by respective encoders, and the control chip stores the angle fed back by the motors and calculates the current angle of the heliostat accordingly, and then feeds the current angle of the heliostat back to the monitoring computer.
Description
Technical field
The invention belongs to solar energy utilization, automation control area, relate to a kind of tower type solar collecting system open loop type heliostat tracking control unit.
Background technology
Heliostat is the important component part in the tower type solar collecting system, adjusts the angle of its speculum by control system, realizes the accurate tracking to sunray, and the sunray of assembling is projected cat head heat collector surface.Heliostat is comprised of speculum, tracking drive mechanism, mirror holder, pedestal and controller, it is the expensive larger technical equipment of proportion in tower power station, its investment usually account for tower-type solar thermal power generating system 50% in addition higher, the performance that how to realize this technical equipment improves and cost is the emphasis problem of current research always.
The problem that exists at present is: because the systemic-function distribution is unreasonable, the heliostat controller has been born whole general character computings and control function.Therefore, even it uses DSP or the contour performance chip of PLC or controller also can't guarantee high-quality control effect, performance can't be improved, and can cause the technical equipment production cost high.At present, the tower type solar collecting system is in the marketization, industrialization in earlier stage, the control accuracy of heliostat, operation stability, security reliability and reduction construction cost become the main contents of heliostat control technology research and development, therefore be necessary to distribute under the rational prerequisite in a kind of systemic-function, develop high, the stable and cheap heliostat controller of a kind of control accuracy.
Summary of the invention
The objective of the invention is to overcome the prior art defective, be provided at a kind of tower type solar collecting system open loop type heliostat tracking control unit.
The present invention realizes according to following proposal:
A kind of tower type solar collecting system open loop type heliostat tracking control unit, to comprise communication interface circuit, the extension storage unit, manually control key circuit, watchdog circuit, power-fail detection circuit, the control chip of real time clock circuit and alarm signal receiving circuit, the built-in calculating of control chip, the program of control heliostat azimuth and elevation angle electric machine rotation, the outer monitoring computer by communication interface to these control chip sending controling instruction and data, after control chip receives the control instruction of supervisory control comuter transmission, carry out analyzing and processing, then control elevation angle and azimuth motor and rotate, and then the control heliostat moves according to the mode of appointment; The angle value that elevation angle motor and the azimuth motor encoder by separately turns over self feeds back to control chip, the angle value of control chip storage motor feedback also calculates the current angle value of heliostat accordingly, and then the current angle value with heliostat feeds back to supervisory control comuter;
Described communication interface circuit is RS485, RS422, RS423 or wireless communication data transceiver;
Described control chip adopts single-chip microcomputer;
Described power-fail detection circuit is detection system voltage at any time, provides power-off signal for control circuit before power down;
The memory cell of described single-chip microcomputer extension is external or the memory that carries;
The control signal that described manual control key circuit sends is received by control chip with the external interrupt form;
Described alarm signal receiving circuit receives motor failure signal and heliostat limit switch signal, and is sent to control chip as external interrupt signal;
Described watchdog circuit is used for preventing that the SCM program race from flying;
Described real time clock circuit provides correct time for single-chip microcomputer.
The present invention has following advantage: 1, control accuracy is high, and controller response speed is fast 2, cost is low, adapts to the demand of the high-power collecting system marketization of solar energy, industrialization.
Description of drawings
Fig. 1 is the structural representation block diagram of heliostat controller of the present invention;
Fig. 2 is control principle schematic diagram of the present invention;
Fig. 3 is monolithic processor resetting and clock circuit module circuit theory diagrams;
Fig. 4 is microcontroller power supply modular circuit schematic diagram;
Fig. 5 is the serial communication module circuit theory diagrams;
Fig. 6 is power down protection modular circuit schematic diagram;
Fig. 7 is limit switch modular circuit schematic diagram;
Fig. 8 is the real-time clock module circuit theory diagrams;
Fig. 9 is SERVO CONTROL output module circuit theory diagrams;
Figure 10 is the manual control module circuit theory diagrams.
The specific embodiment
1) as shown in Figure 1:
In the master control borad single-chip microcomputer master control program is housed.Single-chip microcomputer receives control signal and the data that supervisory control comuter sends with interrupt mode.
Manually the signal of control button generation is processed by single-chip microcomputer as the external interrupt of single-chip microcomputer.
The FLASH memory cell is used for the memory headroom of expansion single-chip microcomputer, and the FLASH memory cell of this expansion can carry for single-chip microcomputer, also can expand for the outside.Azimuth motor control module and elevation angle motor control unit are used for receiving the pulse signal that single-chip microcomputer sends, simultaneously according to received pulse signal control electric machine rotation.
Power-fail detection circuit is used for detecting the magnitude of voltage of power supply that controller accesses, and when voltage was lower than certain value, this circuit thought that single-chip microcomputer sends power-off signal, and this signal is received by single-chip microcomputer with the form of external interrupt.
The effect of real time clock circuit is to follow the tracks of the sun for heliostat to provide the precise time value.Supervisory control comuter is calibrated the current time of real-time clock by single-chip microcomputer regularly to single-chip microcomputer transmitting time calibration command.
Watchdog circuit is used for preventing that the SCM program race from flying.
2) as shown in Figure 2:
The outer monitoring computer by communication interface to heliostat controller sending controling instruction and data, after the heliostat controller receives the control instruction of supervisory control comuter transmission, carry out analyzing and processing, then control elevation angle and azimuth motor and rotate, and then the control heliostat moves according to the mode of appointment.The angle value that elevation angle motor and the azimuth motor encoder by separately turns over self feeds back to the heliostat controller, the angle value of heliostat controller storage motor feedback also calculates the current angle value of heliostat accordingly, then the current angle value with heliostat feeds back to supervisory control comuter, improves the control accuracy of system.
Claims (9)
1. tower type solar collecting system open loop type heliostat tracking control unit, to comprise communication interface circuit, the extension storage unit, manually control key circuit, watchdog circuit, power-fail detection circuit, the control chip of real time clock circuit and alarm signal receiving circuit, it is characterized in that the built-in calculating of control chip, the program of control heliostat azimuth and elevation angle electric machine rotation, the outer monitoring computer by communication interface to these control chip sending controling instruction and data, after control chip receives the control instruction of supervisory control comuter transmission, carry out analyzing and processing, then control elevation angle and azimuth motor and rotate, and then the control heliostat moves according to the mode of appointment; The angle value that elevation angle motor and the azimuth motor encoder by separately turns over self feeds back to control chip, the angle value of control chip storage motor feedback also calculates the current angle value of heliostat accordingly, and then the current angle value with heliostat feeds back to supervisory control comuter.
2. controller according to claim 1 is characterized in that described communication interface circuit is RS485, RS422, RS423 or wireless communication data transceiver.
3. controller according to claim 1 is characterized in that described control chip adopts single-chip microcomputer.
4. heliostat tracking control unit according to claim 1 is characterized in that at any time detection system voltage of described power-fail detection circuit, provides power-off signal for control circuit before power down.
5. heliostat tracking control unit according to claim 1, the memory cell that it is characterized in that described single-chip microcomputer extension are external or the memory that carries.
6. heliostat tracking control unit according to claim 1 is characterized in that the control signal that described manual control key circuit sends is received by control chip with the external interrupt form.
7. controller according to claim 1 is characterized in that described alarm signal receiving circuit receives motor failure signal and heliostat limit switch signal, and is sent to control chip as external interrupt signal.
8. controller according to claim 1 is characterized in that described watchdog circuit is used for preventing that the SCM program race from flying.
9. controller according to claim 1 is characterized in that described real time clock circuit provides correct time for single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012104774040A CN102937340A (en) | 2012-11-22 | 2012-11-22 | Open ring type heliostat tracking controller of tower type solar collector system |
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| CN2012104774040A CN102937340A (en) | 2012-11-22 | 2012-11-22 | Open ring type heliostat tracking controller of tower type solar collector system |
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| CN102937340A true CN102937340A (en) | 2013-02-20 |
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| CN2012104774040A Pending CN102937340A (en) | 2012-11-22 | 2012-11-22 | Open ring type heliostat tracking controller of tower type solar collector system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345270A (en) * | 2013-07-05 | 2013-10-09 | 北京万源多贝克包装印刷机械有限公司 | Absolute position adjustment method for achieving gap adjustment of relative encoder |
| CN105278552A (en) * | 2015-10-13 | 2016-01-27 | 浙江中控太阳能技术有限公司 | Heliostat controller based on CMC chip |
| CN106091095A (en) * | 2016-06-21 | 2016-11-09 | 沈阳理工大学 | A kind of active solar energy heating automatic control system |
| CN110822742A (en) * | 2019-10-18 | 2020-02-21 | 北京拉夫堡太阳能技术有限公司 | Tower heliostat tracking controller and control method thereof |
| CN117714228A (en) * | 2024-02-06 | 2024-03-15 | 长春晟博光学技术开发有限公司 | Control method of heliostat controller based on Autbus communication mode |
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| CN201221862Y (en) * | 2008-04-29 | 2009-04-15 | 河海大学 | Heliostat tracing control device |
| CN201263130Y (en) * | 2008-08-18 | 2009-06-24 | 彩熙太阳能环保技术(天津)有限公司 | Sun tracking device for solar generating device |
| CN201548707U (en) * | 2009-08-07 | 2010-08-11 | 广东省科学院自动化工程研制中心 | Wireless comprehensive meteorological monitoring mixed signal collecting module |
| CN101399508B (en) * | 2007-11-06 | 2011-06-08 | 中国科学院电工研究所 | Manual control device for solar automatic tracking system |
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2012
- 2012-11-22 CN CN2012104774040A patent/CN102937340A/en active Pending
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| CN101399508B (en) * | 2007-11-06 | 2011-06-08 | 中国科学院电工研究所 | Manual control device for solar automatic tracking system |
| CN201221862Y (en) * | 2008-04-29 | 2009-04-15 | 河海大学 | Heliostat tracing control device |
| CN201263130Y (en) * | 2008-08-18 | 2009-06-24 | 彩熙太阳能环保技术(天津)有限公司 | Sun tracking device for solar generating device |
| CN201548707U (en) * | 2009-08-07 | 2010-08-11 | 广东省科学院自动化工程研制中心 | Wireless comprehensive meteorological monitoring mixed signal collecting module |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345270A (en) * | 2013-07-05 | 2013-10-09 | 北京万源多贝克包装印刷机械有限公司 | Absolute position adjustment method for achieving gap adjustment of relative encoder |
| CN105278552A (en) * | 2015-10-13 | 2016-01-27 | 浙江中控太阳能技术有限公司 | Heliostat controller based on CMC chip |
| CN105278552B (en) * | 2015-10-13 | 2019-05-31 | 浙江中控太阳能技术有限公司 | A kind of heliostat controller based on CMC chip |
| CN106091095A (en) * | 2016-06-21 | 2016-11-09 | 沈阳理工大学 | A kind of active solar energy heating automatic control system |
| CN110822742A (en) * | 2019-10-18 | 2020-02-21 | 北京拉夫堡太阳能技术有限公司 | Tower heliostat tracking controller and control method thereof |
| CN117714228A (en) * | 2024-02-06 | 2024-03-15 | 长春晟博光学技术开发有限公司 | Control method of heliostat controller based on Autbus communication mode |
| CN117714228B (en) * | 2024-02-06 | 2024-04-26 | 长春晟博光学技术开发有限公司 | Control method of heliostat controller based on Autbus communication mode |
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Application publication date: 20130220 |