CN101825892A - Centralized monitoring system for solar photovoltaic power generation tracking system - Google Patents
Centralized monitoring system for solar photovoltaic power generation tracking system Download PDFInfo
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- CN101825892A CN101825892A CN201010161245A CN201010161245A CN101825892A CN 101825892 A CN101825892 A CN 101825892A CN 201010161245 A CN201010161245 A CN 201010161245A CN 201010161245 A CN201010161245 A CN 201010161245A CN 101825892 A CN101825892 A CN 101825892A
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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
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Abstract
The invention relates to a centralized monitoring system for a solar photovoltaic power generation tracking system, which comprises a main machine system and a plurality of slave systems, wherein each slave system comprises an azimuth and altitude angle position feedback coder, a slave wireless communication unit, a main control unit and a horizontal and vertical direction motor driving unit; the main control unit of the slave system comprises a CPU, an address setting unit, a clock chip, an RS232 communication module, a keyboard operation unit and an LCD display module; and the main machine system comprises a PC main machine, a main machine wireless communication unit and a wind speed sensor. The centralized monitoring system for the solar photovoltaic power generation tracking system of the invention can monitor the working state of each slave in real time and has low monitoring cost.
Description
(1) technical field
The present invention relates to a kind of solar energy power generating tracker centralized monitoring system, be used for the monitoring that the solar energy power generating tracker is concentrated.
(2) background technology
Since the seventies in 20th century, oil crisis took place in the whole world; solar photovoltaic technology has caused great attention at western developed country; national governments are from the angle of environmental protection and energy sustainable development strategy; numerous and confused formulation policy; encourage and the support solar photovoltaic technology, its speed of development is very fast.
Many Zhou Gongzhi of institute; how the subject matter of technical field of solar collects solar radiant energy if not lying in; and be to collect how more expediently and better utilization; in electricity generation system; assembly; inverters etc. are domestic ripe substantially; want with regard to this respect on generating efficiency, improve 1 percentage point very difficult; and the generating efficiency that is based upon on the basis of double-shaft auto-tracking system can improve about 40% on the original basis; but because the double-axis tracking system has increased level with vertical rotary drive mechanism; need control system to carry out electric rotating machine being carried out drive controlling in 24 hours; stability to whole electric control system has higher requirement; and generally speaking; tracker all is mounted in the field; may be subjected to thunder and lightning; the influence of rugged surroundings such as strong-electromagnetic field; these factors all may cause system's misoperation; operation is disorderly; system crash or damage if can not in time find and solve when these situations occurring, can produce catastrophic consequence to whole tracker.
On the other hand; owing on the tracker support large-area solar panel has been installed; born a large amount of blast; when reaching certain wind speed; for the protection system structure is not destroyed; system must be rotated to the angle consistent with wind direction and reduce the impact of blast to supporting structure to greatest extent, so each system all needs to install wind speed wind direction sensor and detect wind speed and wind direction data, financial cost is higher.
(3) summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of and can monitor each slave duty and the little solar energy power generating tracker centralized monitoring system of monitoring cost in real time.
The object of the present invention is achieved like this: a kind of solar energy power generating tracker centralized monitoring system, include host computer system and some slave systems, described slave system includes position angle and elevation angle position feedback scrambler, the slave radio communication unit, main control unit and level and vertical direction electric-motor drive unit, the main control unit of described slave system respectively with position angle and elevation angle position feedback scrambler, the slave wireless communication module is connected with level and vertical direction electric-motor drive unit, described level and vertical direction electric-motor drive unit adopt the motor-driven of two special DC motor driver module LMD18200T as level and vertical direction, it is 1000 to have A that described horizontal azimuth and vertical height angle position feedback transducer adopt two resolution, B, the rotary encoder of Z signal, be installed in respectively on level and the vertical turning axle, described slave radio communication unit adopts wireless data transmission module KYL-1020L, described slave system main control unit includes CPU, the address setting unit, clock chip, the RS232 communication module, keyboard operation unit and LCD display module, described CPU respectively with the address setting unit, clock chip, the RS232 communication module, the keyboard operation unit links to each other with the LCD display module, described CPU adopts 51 single-chip microcomputers, clock chip adopts the DS1302 chip, and be connected with two universaling I/O ports of CPU, described clock chip adopts power module and backup battery dual power supply; The address setting unit adopts the address of one group of 8 DIP switch as each slave autonomous system; The keyboard operation unit comprises when manual switch, time are provided with button, manual operation support rotary knob up and down; The LCD display module is used for current time, duty, and the operational data (comprising level orientation angle and vertical height angle) of display system; The RS232 communication module adopts MAX232 chip commonly used;
Described host computer system includes PC main frame, main frame radio communication unit and wind speed and wind speed sensors, described main frame radio communication unit adopts wireless data transmission module KYL-1020L, and described host computer system realizes wireless connections with slave system by cooperating of main frame radio communication unit and slave radio communication unit, and described PC main frame is connected with the wind speed and wind speed sensors with the main frame radio communication unit.
Principle of work of the present invention is:
In system of the present invention, as system host (hereinafter to be referred as main frame), unify to carry out data access and order control by it by the PC main frame that monitoring software is installed; Slave system is set to 01-250 by address setting unit address, and wind speed pick-up unit address is 251, and 00 usefulness all slave systems of opposing in address are broadcasted;
Slave principle of work: CPU regularly reads the current time from clock chip, and horizontal azimuth and vertical height angle are based on the current time and position tracking, and concrete computing method are as follows:
The level orientation angle positioning method: 6:00 is initial initial point with morning, afternoon, 18:00 was 180 degree, if arbitrary time T on daytime (H:M) is between 6:00 and the 18:00, minute to be unit of account, current goal position angle=(180* ((H-6) * 60+M))/((18-6) * 60) then.
The vertical height angle positioning method: with the Northern Hemisphere is example, and known north and south tropic angle is 23 degree 26 minutes.The sun direct projection tropic of Cancer date is June 21, and the direct projection tropic of Capricorn date is Dec 22, follows the direction difference that moves according to the sun, 1 year is divided two time periods, first section from June 22 to Dec the sun moved southwards during this period of time on 22nd; Second section from Dec 23 to June the sun northwards moved during this period of time on 21st.Suppose that local latitude is an X degree Y branch, since clock chip DS1302 have second of calculating before 2100, branch, the time, day, the moon, year ability also have the ability of leap year adjustment, so be easy to calculate fate from date a to June 21, be in very first time section when the time, if from June 21 be Z days to the total fate of current date, current goal elevation angle=((X*60+Y)-(23*60+26)+(Z/183) * (23*60+26) * 2)/60 then; Be in very first time section when the time, establish from June 21 be Z days to the total fate of current date, current goal elevation angle=((X*60+Y)-(23*60+26)+(Z/183) * (23*60+26) * 2)/60 then;
Be in for the one or two time period when the time, establish that total fate on the 21st is Z days from the current date to June, then current goal elevation angle=((X*60+Y)-(23*60+26)+(Z/183) * (23*60+26) * 2)/60.
Slave has three kinds of working methods:
(1) first kind is the manual work mode, when the manual switch of keyboard operation unit is got to manual state in the slave system main control unit, slave system just is in manual state, in this state, slave is not subjected to host computer control, can not follow according to automatic track and localization of current time yet, only accept user's manual command, operation all can be controlled slave support level and vertical direction rotation by upper and lower, left and right button in the keyboard operation unit, and this working method generally is used for system debug and maintenance process.
(2) when manual switch is got to auto state, slave just is in auto state, if this moment, main frame detected wind speed above the warning wind speed, slave calculates the theoretical position angle and the value of elevation angle based on the current time, calculate the position angle and the elevation angle of current reality again according to horizontal azimuth and vertical height angle position feedback transducer, when deviation appears in the position angle of reality and theoretical position angle, the horizontal motor rotation of system drive, up to detect actual value and theoretical value one to the time stop motor rotation, the principle of work of vertical direction is the same with horizontal direction.By this working method, along with the continuous variation of time, the point of theory that calculates also can constantly change, and makes actual angle and point of theory deviation constantly occur like this, causes the continuous drive motor rotation of system, finishes the following function of system.
(3) when manual switch is got to auto state, slave just is in auto state, if this moment, main frame detected wind speed above the warning wind speed, main frame is revised as slave mode by all slave duties of broadcast address order from auto state, and send rotate command, controlling all slaves rotates to specified angle and carries out wind sheltering, prevent that slave system is impacted by high wind for a long time, when detecting wind speed in continuous 5 minutes, main frame is lower than warning during wind speed, main frame is revised as auto state to duty from slave mode by all slaves of broadcast address order, continues to realize automatic following function.
The host work principle:
(1) to the monitoring of slave system: main frame conducted interviews to all slave systems every 5 seconds, the communication state of inquiry slave, duty, the position angle elevation angle data of current reality and the time of slave system, and the Query Result data in real time is presented on the monitoring software interface of PC main frame, when appearance and certain the double communication of slave are broken down, can judge that the system failure appears in slave, send warning message at once, the driving host loudspeaker sounds the alarm, and on host display, eject warning window, demonstrate fault slave number, make the staff to find fault and deal with in the very first time.The date or time that arrives certain slave system when host query is too big with current system data or time deviation, when influencing tracking accuracy, main frame sends modification time automatically, and the correct time sent to slave, the time modification that slave is received after the order self is current orthochronous, by this working method, has guaranteed the consistance of all slave system times effectively, thereby guaranteed the tracking accuracy of slave system, improved the generating efficiency in whole power station greatly.
(2) to the monitoring of wind speed: main frame was inquired about the data of air velocity transducer (address is 251) sampling every 2 seconds, and wind speed, wind direction data in real time are shown on the monitoring software interface.When the double wind speed that inquires when surpassing warning value, main frame will send order to all slaves by broadcast address 00, order all slave systems to change slave mode into from auto state, and rotate to specified angle and carry out wind sheltering, in this way, avoided the slave mounting system to be subjected to the high wind punching press for a long time effectively, really protected the stable operation of total system, when detecting wind speed when continuous 5 minutes and being lower than warning value, change auto state into by broadcast address 00 all slave duties of order, continue to realize following function.
The invention has the beneficial effects as follows:
(1) main frame is by the wireless serial communication modes; inquire about once the duty and the operational data of all slave systems per 5 seconds; and the Query Result data in real time is presented on the monitoring software interface of PC main frame; when inquiring a certain slave system communication abnormality or duty when being in unusual condition; the monitoring software output alarm signal is notified the related personnel to carry out fault clearance or is carried out fault isolation.Can find fault in the very first time by this working method, guarantee that the tracker in whole power station runs well.
(2) main frame is sampled to the data of air velocity transducer by serial communication per 2 seconds, and wind speed, wind direction data in real time are shown on the monitoring software interface.When double when detecting wind speed and surpassing warning value, main frame will send order to all slaves by address 00, order all slave systems to rotate to specified angle and carry out wind sheltering, in this way, avoid the slave mounting system to be subjected to the high wind punching press for a long time effectively, really protected the stable operation of total system.
(3) because the location at the horizontal azimuth of tracker and vertical height angle is based on current date and current time, if the date or time of certain slave system is too big with current date or time deviation, this slave system can't carry out track correctly to the sun so, reduce generating efficiency greatly, main frame is by regularly inquiring about the clock of each slave system, when the time of finding slave with the current time deviation during above 1 minute, main frame will send the modification time order to slave, and the correct time sent to slave, the time modification that slave is received after the order self is current orthochronous, by this working method, guaranteed the consistance of all slave system times effectively, thereby guaranteed the tracking accuracy of slave system, improved the generating efficiency in whole power station greatly.
(4) behind the employing master-slave structure, need not only needs at the main frame place data sharing that can realize all trackers to be installed for every tracker is equipped with typhoon speed wind transducer, greatly reduce the organizing cost of total system.
(4) description of drawings
Fig. 1 is a slave structural representation of the present invention.
Fig. 2 is a main machine structure synoptic diagram of the present invention.
Fig. 3 is a slave system main control unit structural representation of the present invention.
Fig. 4 is a syndeton synoptic diagram of the present invention.
(5) embodiment
Referring to Fig. 1, the present invention relates to a kind of solar energy power generating tracker centralized monitoring system, include host computer system and some slave systems, described slave system includes position angle and elevation angle position feedback scrambler, the slave radio communication unit, main control unit and level and vertical direction electric-motor drive unit, the main control unit of described slave system respectively with position angle and elevation angle position feedback scrambler, the slave wireless communication module is connected with level and vertical direction electric-motor drive unit, described level and vertical direction electric-motor drive unit adopt the motor-driven of two special DC motor driver module LMD18200T as level and vertical direction, the tracker support can be rotated in level and vertical direction, finish the solar tracking function, it is 1000 to have A that described horizontal azimuth and vertical height angle position feedback transducer adopt two resolution, B, the rotary encoder of Z signal, be installed in respectively on level and the vertical turning axle, be used to detect the realization position of tracker support, realize close-loop feedback control, finish the accurate location at horizontal azimuth and vertical height angle, described slave radio communication unit adopts wireless data transmission module KYL-1020L, this module has low-power consumption (less than 500mW), the long characteristics such as (greater than 2KM) of communication distance, main control unit carries out communication by this module and main frame aspect, realize monitoring purposes, described slave system main control unit includes CPU, the address setting unit, clock chip, the RS232 communication module, keyboard operation unit and LCD display module, described CPU respectively with the address setting unit, clock chip, the RS232 communication module, the keyboard operation unit links to each other with the LCD display module, described CPU adopts 51 single-chip microcomputers, this CPU carries the serial communication interface, external RS232 communication module can carry out exchanges data with extraneous communication, clock chip adopts the DS1302 chip, and be connected with two universaling I/O ports of CPU, carry out serial data exchange, described clock chip adopts power module and backup battery dual power supply; The address setting unit adopts the address of one group of 8 DIP switch as each slave autonomous system; The keyboard operation unit comprises when manual switch, time are provided with button, manual operation support rotary knob up and down; The LCD display module is used for current time, duty, and the operational data (comprising level orientation angle and vertical height angle) of display system; The RS232 communication module adopts MAX232 chip commonly used, and it can be converted into the Transistor-Transistor Logic level signal of CPU serial ports the more stable RS232 communication signal of communication, carries out communication with the external world;
Described host computer system includes PC main frame, main frame radio communication unit and wind speed and wind speed sensors, described main frame radio communication unit adopts wireless data transmission module KYL-1020L, and described host computer system realizes wireless connections with slave system by cooperating of main frame radio communication unit and slave radio communication unit, and described PC main frame is connected with the wind speed and wind speed sensors with the main frame radio communication unit.
Claims (1)
1. solar energy power generating tracker centralized monitoring system, it is characterized in that: include host computer system and some slave systems, described slave system includes position angle and elevation angle position feedback scrambler, the slave radio communication unit, main control unit and level and vertical direction electric-motor drive unit, the main control unit of described slave system respectively with position angle and elevation angle position feedback scrambler, the slave wireless communication module is connected with level and vertical direction electric-motor drive unit, described level and vertical direction electric-motor drive unit adopt the motor-driven of two special DC motor driver module LMD18200T as level and vertical direction, it is 1000 to have A that described horizontal azimuth and vertical height angle position feedback transducer adopt two resolution, B, the rotary encoder of Z signal, be installed in respectively on level and the vertical turning axle, described slave radio communication unit adopts wireless data transmission module KYL-1020L, described slave system main control unit includes CPU, the address setting unit, clock chip, the RS232 communication module, keyboard operation unit and LCD display module, described CPU respectively with the address setting unit, clock chip, the RS232 communication module, the keyboard operation unit links to each other with the LCD display module, described CPU adopts 51 single-chip microcomputers, clock chip adopts the DS1302 chip, and be connected with two universaling I/O ports of CPU, described clock chip adopts power module and backup battery dual power supply; The address setting unit adopts the address of one group of 8 DIP switch as each slave autonomous system; The keyboard operation unit comprises when manual switch, time are provided with button, manual operation support rotary knob up and down; The LCD display module is used for current time, duty, and the operational data (comprising level orientation angle and vertical height angle) of display system; The RS232 communication module adopts MAX232 chip commonly used;
Described host computer system includes PC main frame, main frame radio communication unit and wind speed and wind speed sensors, described main frame radio communication unit adopts wireless data transmission module KYL-1020L, and described host computer system realizes wireless connections with slave system by cooperating of main frame radio communication unit and slave radio communication unit, and described PC main frame is connected with the wind speed and wind speed sensors with the main frame radio communication unit.
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Cited By (15)
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| CN101995862A (en) * | 2010-09-10 | 2011-03-30 | 江苏大学 | Photovoltaic array positioning tracking monitoring system based on internet of things and operating method |
| CN102043411A (en) * | 2010-12-30 | 2011-05-04 | 中环光伏系统有限公司 | Control method for leveling solar oblique single-axis tracker downwind |
| CN102541089A (en) * | 2012-01-12 | 2012-07-04 | 冶金自动化研究设计院 | Photovoltaic single-axis tracking system based on industrial wireless network and control method |
| CN102541033A (en) * | 2012-02-13 | 2012-07-04 | 无锡泰克塞斯新能源科技有限公司 | Tracking type photovoltaic power generation system capable of preventing disastrous weathers and implementation method thereof |
| CN103197685A (en) * | 2013-04-11 | 2013-07-10 | 南京信息工程大学 | Solar automatic tracking system |
| CN106054944A (en) * | 2016-08-16 | 2016-10-26 | 石坤 | Photovoltaic tracking support group control system and method based on wireless communication |
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| CN101995862B (en) * | 2010-09-10 | 2012-11-07 | 江苏大学 | Photovoltaic array positioning tracking monitoring system based on internet of things and operating method |
| CN102043411A (en) * | 2010-12-30 | 2011-05-04 | 中环光伏系统有限公司 | Control method for leveling solar oblique single-axis tracker downwind |
| CN102541089B (en) * | 2012-01-12 | 2013-10-02 | 冶金自动化研究设计院 | Photovoltaic single-axis tracking system based on industrial wireless network and control method |
| CN102541089A (en) * | 2012-01-12 | 2012-07-04 | 冶金自动化研究设计院 | Photovoltaic single-axis tracking system based on industrial wireless network and control method |
| CN102541033A (en) * | 2012-02-13 | 2012-07-04 | 无锡泰克塞斯新能源科技有限公司 | Tracking type photovoltaic power generation system capable of preventing disastrous weathers and implementation method thereof |
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| CN107850513B (en) * | 2015-07-24 | 2020-06-16 | Ntn株式会社 | Abnormality diagnostic apparatus and sensor separation detection method |
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| CN106197743B (en) * | 2016-08-31 | 2018-08-31 | 辽宁宏成电力股份有限公司 | The brillouin distributed fiber optic temperature measurement system of high and low voltage switchgear and method |
| CN106843287A (en) * | 2017-02-16 | 2017-06-13 | 江苏溢美合创新能源科技有限公司 | The control method of photovoltaic tracking controller, system and photovoltaic tracing system |
| CN109213208A (en) * | 2017-06-30 | 2019-01-15 | 北京天诚同创电气有限公司 | The more plate intelligent acquisition systems and method of sunlight |
| CN107491102A (en) * | 2017-09-21 | 2017-12-19 | 郑平珍 | A kind of photovoltaic board mount with coupling rotational and corner feedback function |
| CN111405487A (en) * | 2020-03-23 | 2020-07-10 | 江苏中信博新能源科技股份有限公司 | Communication device, system, method and communication box |
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| CN111900778A (en) * | 2020-08-05 | 2020-11-06 | 深圳市电科电源股份有限公司 | Lithium battery parallel operation control method and system in lead-acid mode |
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| CN114839918A (en) * | 2022-07-01 | 2022-08-02 | 山东朝日新能源科技有限公司 | Control system of motor for single-shaft photovoltaic tracking and implementation method thereof |
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Application publication date: 20100908 |