CN207586722U - A kind of twin shaft photovoltaic intelligent follow-up control apparatus based on PLC - Google Patents

A kind of twin shaft photovoltaic intelligent follow-up control apparatus based on PLC Download PDF

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Publication number
CN207586722U
CN207586722U CN201721426093.XU CN201721426093U CN207586722U CN 207586722 U CN207586722 U CN 207586722U CN 201721426093 U CN201721426093 U CN 201721426093U CN 207586722 U CN207586722 U CN 207586722U
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CN
China
Prior art keywords
photovoltaic bracket
orientation
plc
photovoltaic
west
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Expired - Fee Related
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CN201721426093.XU
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Chinese (zh)
Inventor
张莉
胡美玲
孟鹏飞
黄春犁
赵亚楠
冯宇
赵进科
张利伟
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Huadian Zhengzhou Machinery Design and Research Institute Co Ltd
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Huadian Zhengzhou Machinery Design and Research Institute Co Ltd
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Priority to CN201721426093.XU priority Critical patent/CN207586722U/en
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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

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Abstract

The utility model provides a kind of twin shaft photovoltaic intelligent follow-up control apparatus based on PLC, including PLC, is connected on PLC:The wireless communication device carried out wireless communication with outside;Show the text display of current photovoltaic bracket operating parameter;Obtain the Hall sensor of current photovoltaic bracket angle of revolution;Obtain the anemobiagraph of wind speed in environment nowadays;Obtain the angular transducer of the current pitch angle of photovoltaic bracket;To the initial position of photovoltaic bracket limited close to switch;The east orientation limit switch limited to the east orientation inclination angle of photovoltaic bracket;The west limited to the west of photovoltaic bracket to inclination angle is to limit switch;The south orientation limit switch limited to the south orientation inclination angle of photovoltaic bracket;The north orientation limit switch limited to the north orientation inclination angle of photovoltaic bracket;The turning motor being adjusted to the East and West direction angle of revolution of photovoltaic bracket;The pitching motor being adjusted to the north-south pitch angle of photovoltaic bracket.The utility model has higher stability and antijamming capability.

Description

A kind of twin shaft photovoltaic intelligent follow-up control apparatus based on PLC
Technical field
The utility model is related to a kind of twin shaft photovoltaic intelligent follow-up control apparatus based on PLC.
Background technology
With the consumption of the conventional non-renewable energy resources such as coal, oil, the energy resource structure based on conventional energy resource is not The demand of sustainable development is adapted to, energy problem has become an important factor for restricting human progress, and the mankind have to look for hold The energy road of supervention exhibition could alleviate the contradiction of energy shortage and human society high speed development.Solar energy is as a kind of cleaning Free of contamination regenerative resource has been to be concerned by more and more people, and development prospect is boundless.But solar energy there is it is intermittent, Density is low, intensity of illumination and direction continually changing problem at any time, only makes photovoltaic panel vertical with the holding of sunray moment, It just can effectively solve the problem that these problems, improve the utilization rate of solar energy, improve the generating efficiency of photovoltaic plant.It is sent out according to investigation Existing, double-axis tracking control device is divided by feedback signal is whether there is:Opened loop control, closed-loop control.For opened loop control, closed loop control System increases feedback signal so that control system control accuracy higher, but also accordingly increased production cost.And it is existing with Track system stability is poor, during tracking due to excessively rotating or other extraneous environmental factors cause, device easily go out therefore Barrier.
Utility model content
The utility model provides a kind of twin shaft photovoltaic intelligent follow-up control apparatus based on PLC, is deposited with solving the prior art The problem of.
The utility model uses following technical scheme:
A kind of twin shaft photovoltaic intelligent follow-up control apparatus based on PLC, including PLC, is connected on the PLC:
The wireless communication device carried out wireless communication with outside;
Show the text display of current photovoltaic bracket operating parameter;
Obtain the Hall sensor of current photovoltaic bracket angle of revolution;
Obtain the anemobiagraph of wind speed in environment nowadays;
Obtain the angular transducer of the current pitch angle of photovoltaic bracket;
To the initial position of photovoltaic bracket limited close to switch;
The east orientation limit switch limited to the east orientation inclination angle of photovoltaic bracket;
The west limited to the west of photovoltaic bracket to inclination angle is to limit switch;
The south orientation limit switch limited to the south orientation inclination angle of photovoltaic bracket;
The north orientation limit switch limited to the north orientation inclination angle of photovoltaic bracket;
The turning motor being adjusted to the East and West direction angle of revolution of photovoltaic bracket;
The pitching motor being adjusted to the north-south pitch angle of photovoltaic bracket.
Further, the PLC is powered using single-phase 220V power supplys;The single-phase 220V power supplys are turned by Switching Power Supply VC1 It is that turning motor and pitching motor are powered after turning to 24V power supplys;In being provided between the turning motor and Switching Power Supply VC1 Between II K2 of I K1 of relay and intermediate relay;III K3 of intermediate relay is provided between the pitching motor and Switching Power Supply VC1 With IV K4 of intermediate relay.
Further, babinet is further included, multiple openings are set on the babinet, opening installs the text being connected with PLC respectively This display, indicator light and rotary switch;The indicator light includes east orientation indicator light, photovoltaic bracket of the photovoltaic bracket towards east orientation Towards west to the north orientation of west to indicator light, photovoltaic bracket towards the south orientation indicator light of south orientation, photovoltaic bracket towards north orientation indicate Lamp, the rotary switch include manual/auto rotary switch, east orientation/west to rotary switch, south orientation/north orientation rotary switch.
Further, it is equal at each photovoltaic generation matrix when photo-voltaic power generation station is made of multiple photovoltaic generation matrixes One control device is set, and module communicates, and the wireless communication module and number by radio communication between each control device It is connected according to server communication, data server is communicated to connect with remote control terminal.
The beneficial effects of the utility model:The utility model, into line trace, is had higher stability and resisted dry using PLC Disturb ability;It is positioned proximate to switch and limit switch simultaneously, the rotation position of device can be limited, prevents from excessively rotating and make Into device damage;Also module it can carry out wireless remote monitering by radio communication.
Description of the drawings
Fig. 1 is the external box of microvave schematic diagram of the control device of the utility model.
Fig. 2 is data collection and control system power schematic diagram.
Fig. 3 is data collection and control system hardware configuration figure.
Fig. 4 is the system topological figure of the utility model.
Fig. 5 is the schematic diagram of photovoltaic bracket.
Fig. 6 is the installation position of angular position sensor of location A in Fig. 5.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
The present invention is applied to double-axis tracking and controls, and executing agency is controlled to be rotated by PLC, realizes the purpose of tracking.
The above-mentioned executing agency applied to photovoltaic panel(That is twin shaft photovoltaic bracket)For the prior art, for photovoltaic panel reality Existing transmeridional revolution operation and the pitching in north-south operate, i.e., the executing agency of twin shaft includes being used to support East and West direction revolution fortune Dynamic swing mechanism(Such as 1 position in Fig. 5)With the actuating unit such as turning motor for driving the rotation of swing mechanism East and West direction;And branch Support the luffing mechanism of north-south pitching movement(2 positions in Fig. 5)With the engine for driving the pitching operation of luffing mechanism north-south Structure such as pitching motor.
As shown in Figure 1, the control device of the utility model includes babinet, multiple openings are set on the front tank wall of babinet, Opening installs the text display being connect with PLC, indicator light and rotary switch respectively.Indicator light includes photovoltaic panel towards east To east orientation indicator light, photovoltaic panel towards east orientation west to indicator light, photovoltaic panel towards south orientation south orientation indicator light, photovoltaic Panel is towards north orientation indicator light, the power supply indicator of north orientation.Rotary switch includes manual/auto rotary switch, east orientation/west to rotation Turn on pass, south orientation/north orientation rotary switch.
The control system hardware configuration of the utility model wirelessly communicates as shown in figure 3, comprising PLC and wireless communication module Module is preferably using 3G/4G communication modules, and the wireless communication module with long-range data server network for connecting, data clothes The industrial personal computer of business device and remote control terminal communicates to connect.Text display is also associated on PLC, text display is used for showing tiltedly The uniaxial running relevant parameter of photovoltaic bracket, for example, system time, local longitude and latitude, the true bearing angle of the sun, elevation angle, Current pitch angle, angle of revolution etc..The signal of communication plate of PLC(SB)Also pass through Modbus rtu protocols and angular transducer It is communicatively coupled, acquires the pitch angle of the luffing mechanism of photovoltaic bracket;Hall sensor is also associated on PLC, for adopting Collect the angle of revolution of the swing mechanism of photovoltaic bracket.
As shown in figure 5, angular transducer 3 is mounted on the rack longeron of photovoltaic module, for obtaining luffing mechanism reality The angle of rotation, and Hall sensor is integrated in inside turning motor, for obtaining the practical angle of revolution rotated of swing mechanism.
The anemobiagraph for obtaining wind speed in environment nowadays is additionally provided on PLC;If wind speed is more than the wind speed threshold of setting Value, easily damages photovoltaic module, and therefore, in the case of this kind, PLC sends out signal to motor and stops photovoltaic tracking.
It, will be to stent and control system beyond the range since general photovoltaic panel is needed into line trace in certain range System damages, and therefore, it is necessary to east orientation inclination angle, the west to photovoltaic panel to limit to inclination angle, south orientation inclination angle, north orientation inclination angle, this The method used in utility model is to set mechanical limit switch to, the extreme position of south orientation, north orientation in east orientation, west, i.e.,:East orientation Limit switch, west coordinate timing, determine angle side out of service to limit switch, south orientation limit switch, north orientation limit switch Method carries out multiple protective to stent and control system.When photovoltaic bracket runs to the limit spacing position of the switch, stop tracking.
It is also associated with approaching switch on PLC, be limited close to switch for the initial position to photovoltaic bracket, when daily Dusk when, photovoltaic bracket returns to initial position, close to switch for being limited to the position.
As shown in Fig. 2, control system general supply and PLC working powers are handed over using single-phase 220V, 50HZ in the utility model Galvanic electricity source, driving the motor power of biaxial movement of photovoltaic bracket, the DC power supply is by Switching Power Supply using 24V DC power supplies VC1 is converted), motor use low-power consumption direct current generator, intermediate relay I is provided between motor and 24V DC power supplies K1, II K2 of intermediate relay, III K3 of intermediate relay, IV K4 of intermediate relay, send out control signal, by control by PLC Between I K1 of relay and II K2 of intermediate relay so that control turning motor, change the transmeridional rotation angle of photovoltaic panel, pass through It controls III K3 of intermediate relay and IV K4 of intermediate relay and then controls pitching motor, change the rotation angle in photovoltaic panel north-south Degree, and then photovoltaic matrix is from motion tracking running track from sun.
In particular it is necessary to when carrying out pitch control, PLC output control signals make III K3 of intermediate relay and it is intermediate after The coil of IV K4 of electric appliance obtains electric, and then the normally opened main contacts of IV K4 of III K3 of intermediate relay and intermediate relay is attracted, pitching Motor obtains electricity operation, and stent starts north-south tracking;When not needing to carry out pitch control constantly, PLC stops output control signal, The coil losing electricity of IV K4 of III K3 of intermediate relay and intermediate relay, and then IV K4 of III K3 of intermediate relay and intermediate relay Normally opened main contacts disconnects, and pitching motor is out of service, and luffing mechanism stops tracking.
When carrying out revolution control, PLC output control signals make the line of II K2 of I K1 of intermediate relay and intermediate relay It encloses electric, and then the normally opened main contacts of II K2 of I K1 of intermediate relay and intermediate relay is attracted, turning motor is electric to obtain electric fortune Row, stent start East and West direction rotation;When not needing to carry out revolution control, then PLC stops output control signal, intermediate relay The coil losing electricity of II K2 of I K1 and intermediate relay, and then the normally opened main contacts of II K2 of I K1 of intermediate relay and intermediate relay breaks It opens, turning motor is out of service, and swing mechanism stops rotating.
Photo-voltaic power generation station generally all has multiple photovoltaic generation matrixes composition, and each matrix that generates electricity installs a set of control dress It puts, is communicatively coupled between each matrix by 3G/4G wireless communication modules, realize that the tracking of each photovoltaic bracket synchronizes, Reduce the laying amount of cable or optical fiber.3G/4G wireless communication modules store collected information to data by Internet Server, then industrial personal computer is connected, it can be achieved that the monitoring of the long-range operating status to photovoltaic bracket, reduces power station and patrol by server The working strength of personnel is looked into, achievees the purpose that long-distance centralized control.

Claims (3)

1. a kind of twin shaft photovoltaic intelligent follow-up control apparatus based on PLC, it is characterised in that:Including PLC, connected on the PLC Have:
The wireless communication device carried out wireless communication with outside;
Show the text display of current photovoltaic bracket operating parameter;
Obtain the Hall sensor of current photovoltaic bracket angle of revolution;
Obtain the anemobiagraph of wind speed in environment nowadays;
Obtain the angular transducer of the current pitch angle of photovoltaic bracket;
To the initial position of photovoltaic bracket limited close to switch;
The east orientation limit switch limited to the east orientation inclination angle of photovoltaic bracket;
The west limited to the west of photovoltaic bracket to inclination angle is to limit switch;
The south orientation limit switch limited to the south orientation inclination angle of photovoltaic bracket;
The north orientation limit switch limited to the north orientation inclination angle of photovoltaic bracket;
The turning motor being adjusted to the East and West direction angle of revolution of photovoltaic bracket;
The pitching motor being adjusted to the north-south pitch angle of photovoltaic bracket.
2. a kind of twin shaft photovoltaic intelligent follow-up control apparatus based on PLC according to claim 1, it is characterised in that:
The PLC is powered using single-phase 220V power supplys;The single-phase 220V power supplys pass through Switching Power Supply(VC1)It is converted into 24V electricity It is that turning motor and pitching motor are powered behind source;The turning motor and Switching Power Supply(VC1)Between be provided with intermediate relay Ⅰ(K1)With intermediate relay II(K2);The pitching motor and Switching Power Supply(VC1)Between be provided with intermediate relay III(K3) With intermediate relay IV(K4).
3. a kind of twin shaft photovoltaic intelligent follow-up control apparatus based on PLC according to claim 1, it is characterised in that:
Babinet is further included, multiple openings are set on the babinet, opening is installed the text display being connected with PLC, referred to respectively Show lamp and rotary switch;The indicator light include photovoltaic bracket towards the east orientation indicator light of east orientation, photovoltaic bracket towards west to West is to indicator light, photovoltaic bracket towards the south orientation indicator light of south orientation, photovoltaic bracket towards the north orientation indicator light of north orientation, the rotation Switch includes manual/auto rotary switch, east orientation/west to rotary switch, south orientation/north orientation rotary switch.
CN201721426093.XU 2017-10-31 2017-10-31 A kind of twin shaft photovoltaic intelligent follow-up control apparatus based on PLC Expired - Fee Related CN207586722U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721426093.XU CN207586722U (en) 2017-10-31 2017-10-31 A kind of twin shaft photovoltaic intelligent follow-up control apparatus based on PLC

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721426093.XU CN207586722U (en) 2017-10-31 2017-10-31 A kind of twin shaft photovoltaic intelligent follow-up control apparatus based on PLC

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Publication Number Publication Date
CN207586722U true CN207586722U (en) 2018-07-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107526331A (en) * 2017-10-31 2017-12-29 华电郑州机械设计研究院有限公司 A kind of twin shaft photovoltaic intelligent follow-up control apparatus and method based on PLC

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107526331A (en) * 2017-10-31 2017-12-29 华电郑州机械设计研究院有限公司 A kind of twin shaft photovoltaic intelligent follow-up control apparatus and method based on PLC

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Granted publication date: 20180706