CN208506602U - A kind of solar tracking tracing detection circuit for photovoltaic system - Google Patents

Abstract

The utility model provides a kind of solar tracking tracing detection circuit for photovoltaic system, including voltage transformation module, sensor module and control module, the voltage transformation module, sensor module and control module integrate in one piece of PCB circuit board, voltage transformation module input terminal connects external power supply, the power end of the output end connection sensor module of voltage transformation module and the power end of control module, the input terminal of the output end connection controller module of sensor module, the output end of control module is the signal end for controlling motor.External power supply is converted into pressure stabilizing control power supply and is supplied to sensor module and control module by voltage transformation module, sensor module detects real-time inclination angle, the data that will test are sent to control module by output end, output signal controls motor to adjust the inclination angle of photovoltaic panel according to the actual situation after control module calculation process, compared to traditional design, the utility model no longer needs cable transmission signal, reduces the influence of unfavorable factor.

Description

A kind of solar tracking tracing detection circuit for photovoltaic system

Technical field

The utility model relates to a kind of novel photovoltaic tracking device, in particular to a kind of solar tracking for photovoltaic system with Track detection circuit.

Background technique

In solar-tracking mode, depending on daily motion trajectory track mode, i.e., solar angle trace mode is not by Changes in weather Influence, angle is only determined by longitude and latitude where itself and time, but mechanical structure can generate centainly during running Machine error, and due to itself being open-loop control system, so oneself accumulation error can not be eliminated.And in photovoltaic tracking In device system, inclination angle detection be it is very necessary, be used to detect the real-time angular of solar energy photovoltaic panel, and with required angle pair Than judging whether to need to adjust, all play the role of when daily operation and wind speed are protected very important.Traditional photovoltaic tracking In device system, inclination angle detection is all the external obliquity sensor of control cabinet, when obliquity sensor detects tilt angles data, is led to It crosses external cable and sends the data to control cabinet, after then control cabinet is again by data with required angle changing rate, control motor rotation It is adjusted to required angle, there is some shortcomings for this mode.

Application No. is the utility models of CN200420009405.3 to disclose a kind of photovoltaic generation automatic-tracking control device, It is mainly made of two pieces of orientation detections solar cell plate, operational amplifier and cmos digital circuit, two pieces of orientation detections It is mounted on the solar cell grillage of photovoltaic generating system in certain relative angle as detection source with solar cell plate, The detection signal that detection source is sent out is added in rotation control circuit by sample circuit to be analyzed, is compared, when solar irradiation reaches To after certain intensity, rotation control circuit drive motor and can drive the solar cell grillage of photovoltaic generating system by first Beginning position follows the direction of sun relative motion to be segmented by intermittent mode automatically and rotates from east orientation west, to make photovoltaic generating system Solar panel be maintained at current biggish power output state, post sunset, the revolution in rotation control circuit resets electricity Road, which starts automatically and the solar battery grillage of photovoltaic generating system is driven to return back to initial position, waits sunrise.The technical solution Detection device and control circuit between connected by conducting wire, once conducting wire goes wrong, be easy to make rotation relatively large deviation occur.

Application No. is the utility models of CN201420176772.6 to disclose a kind of high-efficiency solar automatic tracking device, packet A single chip control module is included, the single chip control module and Photoelectric Detection tracing module, motor module and solar angle track mould Block connection；The Photoelectric Detection tracing module and motor module are also connect with photovoltaic array；The Photoelectric Detection tracking Module includes the rain or shine day detection circuit and photoelectrical solar orientation detection circuit for judging weather condition；The solar angle chases after Track module is used for driving motor module, to adjust the direction of photovoltaic array.The device can make solar panel with Solar elevation and it is azimuthal variation and change, Photoelectric Detection method for tracing and solar angle method for tracing are combined, no The sensitivity of solar tracking apparatus is only improved, while being not readily susceptible to the interference of weather and other light sources, it is with higher steady Fixed degree, error are smaller.The device lacks feedback system, when especially working under solar angle trace mode, is easy to appear machinery Deviation, lacking feedback can not just correct in time, reduce the utilization efficiency of solar energy.

Utility model content

Often lack feedback system in conventional photovoltaic tracking system, or has feedback system but need external using cable Sensor cannot detect tilt angles after the disconnection of communication cable line, and external sensor needs external working voltage, Communicate poor compatibility, with control cabinet communicate when read data have drift, cannot accurately read valid data, for it is above-mentioned not Foot, the utility model provide a kind of solar tracking tracing detection circuit for photovoltaic system, perfect for the anti-of inclination angle detection The transmission of feedback system, signal no longer needs cable, reduces the influence of unfavorable factor.

The technical solution of the utility model are as follows:

A kind of solar tracking tracing detection circuit for photovoltaic system, including voltage transformation module, sensor module and control Module, the voltage transformation module, sensor module and control module integrate in one piece of PCB circuit board, voltage modulus of conversion Block input terminal connects external power supply, the power end of the output end connection sensor module of voltage transformation module and the electricity of control module Source, the input terminal of the output end connection controller module of sensor module, the output end of control module is for controlling motor Signal end.In monolith PCB circuit board, external power supply is converted into pressure stabilizing control power supply and is supplied to sensor by voltage transformation module Module and control module, sensor module detect real-time inclination angle, and the data that will test are sent to control mould by output end Block, output signal control motor adjusts the inclination angle of photovoltaic panel according to the actual situation after control module calculation process.

Preferably, the sensor module includes sensor chip U1, resistance R1, resistance R2, capacitor C12, capacitor C13, capacitor C14 and capacitor C15, the sensor chip U1 are MPU6050 gyroscope chip, 1 foot of sensor chip U1,9 Foot, 11 feet and 18 feet ground connection, the output end of 8 feet of sensor chip U1 and 13 feet connection power module, the 1 of sensor chip U1 Foot and 8 feet are connected by capacitor C12, and 10 feet and 11 feet of sensor chip U1 are connected by capacitor C14, sensor chip U1's 18 feet and 20 feet are connected by capacitor C13, and 13 feet of sensor chip U1 are grounded by capacitor C15, the one end resistance R1 connection electricity The output end of source module, the other end connect 24 feet of sensor chip U1, and one end of resistance R2 connects the output end of power module, The other end connects 23 feet of sensor chip U1, and 24 feet and 23 feet of sensor chip U1 are the output end of sensor module.With Make the MPU6050 of sensor chip U1 to exempt for the whole world 6 axis motion process component of the first conformability compared to multicomponent scheme The problem of the difference of combination gyroscope and accelerator time shaft, reduces a large amount of encapsulated space；Sensor chip U1 uses electricity The control power supply power supply of conversion module, the inclination data of real-time detection photovoltaic panel are pressed, 23 feet of sensor chip U1 and 24 feet are made The input terminal of control module is transmitted data to for the output end of sensor module.

Preferably, the control module includes master chip U2, resistance R3, resistance R4, capacitor C16, capacitor C17, capacitor C18, crystal oscillator Y1 and button S1, the master chip U2 are STM32F103 family chip, the 13 feet connection voltage conversion of master chip U2 The output end of module, 12 feet, 28 feet and the 60 feet ground connection of master chip U2,6 feet of master chip U2 and first end, the resistance of crystal oscillator Y1 The first end of R3 and the first end connection of capacitor C18, the second end ground connection of capacitor C18,5 feet of master chip U2 are with crystal oscillator Y1's The first end of second end, the second end of resistance R3 and capacitor C17 connects, the second end ground connection of capacitor C17, and the 7 of master chip U2 Foot is connect with the first end of the first end of button S1 and resistance R4, the output of the second end connection voltage transformation module of resistance R4 End, the second end ground connection of button S1, the first end of button S1 are connect with the first end of capacitor C16, the second end and electricity of button S1 Hold C16 second end connection, 58 feet of master chip U2 and 59 feet connection sensor module output end, 20 feet of master chip U2 and 21 feet are the output end of control module.STM32F103 family chip as master chip U2, it is full-featured and cost is relatively low, it is main 58 feet and 59 feet of chip U2 receive the signal sent from sensor module output end as the input terminal of control module, pass through After processing, output end output control signal of 20 feet and 21 feet of master chip U2 as control module, control motor adjusts photovoltaic Plate inclination angle.

Preferably, 24 feet of the sensor chip U1 connect as 59 feet of data-signal mouth and the master chip U2 It connects, 23 feet of the sensor chip U1 are connect as clock signal mouth with 58 feet of the master chip U2.Sensor chip U1 It is communicated using I2C bus communication mode, keeps the communication of two modules very reliable.

Preferably, the voltage transformation module includes conversion chip VR1, diode D1, inductance L1 and several capacitors, The cathode of the input port connection diode D1 of conversion chip VR1, the cathode of diode D1 pass through several capacity earths, diode D1 Anode connect external power supply, the first end of the delivery outlet connection inductance L1 of conversion chip VR1, the first end of inductance L1 passes through one A capacity earth, for the second end of inductance L1 by several capacity earths, the second end of inductance L1 is the output of voltage transformation module End.External power supply is converted to control power supply and is supplied to sensor module and control module, conversion chip by conversion chip VR1 The power supply of VR1 output has the advantages that stability is high, improves the reliability of circuit.

Preferably, the conversion chip VR1 is LM1117-3.3 voltage stabilizing chip.LM1117-3.3 is LM1117 low voltage difference A 3.3V fixed voltage in voltage regulator series exports model, has section space-efficient SOT-223 and LLP encapsulation, electricity Ductility limit system and heat protection function export electric current up to 800mA, these features make LM1117-3.3 chip be very suitable to make herein With.

The utility model has the following beneficial effects: all circuit integrations do not need external cable, no longer in one piece of circuit board Worry that cable disconnects caused signal interruption, and Realtime Capability of Communication is high, data are accurate, small power consumption, and circuit maintenance is convenient.

Detailed description of the invention

Fig. 1 is the circuit diagram of the utility model.

Specific embodiment

The technical program is further elaborated below in conjunction with Figure of description:

A kind of solar tracking tracing detection circuit for photovoltaic system, including voltage transformation module, sensor module and control Module, the voltage transformation module, sensor module and control module integrate in one piece of PCB circuit board, voltage modulus of conversion Block input terminal connects external power supply, the power end of the output end connection sensor module of voltage transformation module and the electricity of control module Source, the input terminal of the output end connection controller module of sensor module, the output end of control module is for controlling motor Signal end.In monolith PCB circuit board, external power supply is converted into pressure stabilizing control power supply and is supplied to sensor by voltage transformation module Module and control module, sensor module detect real-time inclination angle, and the data that will test are sent to control mould by output end Block, output signal control motor adjusts the inclination angle of photovoltaic panel according to the actual situation after control module calculation process.

As shown in Figure 1, the sensor module includes sensor chip U1, resistance R1, resistance R2, capacitor C12, capacitor C13, capacitor C14 and capacitor C15, the sensor chip U1 are MPU6050 gyroscope chip；The control module includes main core Piece U2, resistance R3, resistance R4, capacitor C16, capacitor C17, capacitor C18, crystal oscillator Y1 and button S1, the master chip U2 are STM32F103 family chip；The voltage transformation module includes conversion chip VR1, diode D1, inductance L1, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, capacitor C6, capacitor C7, capacitor C8, capacitor C9, capacitor C10 and capacitor C11, the conversion Chip VR1 is LM1117-3.3 voltage stabilizing chip.

1 foot, 9 feet, 11 feet and the 18 feet ground connection of the sensor chip U1,8 feet of sensor chip U1 and the connection of 13 feet The output end of power module, 1 foot and 8 feet of sensor chip U1 are connected by capacitor C12,10 feet of sensor chip U1 and 11 Foot is connected by capacitor C14, and 18 feet and 20 feet of sensor chip U1 are connected by capacitor C13,13 feet of sensor chip U1 It being grounded by capacitor C15, the one end resistance R1 connects the output end of power module, and the other end connects 24 feet of sensor chip U1, The output end of one end connection power module of resistance R2, the other end connect 23 feet of sensor chip U1, sensor chip U1's 24 feet and 23 feet are the output end of sensor module.MPU6050 as sensor chip U1 is the first 6 axis of the conformability fortune in the whole world Dynamic processing component eliminates the problem of the difference of combination gyroscope and accelerator time shaft compared to multicomponent scheme, reduces big The encapsulated space of amount；Sensor chip U1 uses the control power supply power supply of voltage transformation module, the inclination angle of real-time detection photovoltaic panel Data, 23 feet and 24 feet of sensor chip U1 transmit data to the input of control module as the output end of sensor module End.

The output end of the 13 feet connection voltage transformation module of the master chip U2,12 feet, 28 feet and 60 feet of master chip U2 Ground connection, 6 feet of master chip U2 are connect with the first end of the first end of crystal oscillator Y1, the first end of resistance R3 and capacitor C18, capacitor The second end of C18 is grounded, and the first of the second end of 5 feet of master chip U2 and crystal oscillator Y1, the second end of resistance R3 and capacitor C17 End connection, the second end ground connection of capacitor C17,7 feet of master chip U2 and the first end of button S1 and the first end of resistance R4 connect Connect, the output end of the second end of resistance R4 connection voltage transformation module, the second end ground connection of button S1, the first end of button S1 with The first end of capacitor C16 connects, and the second end of button S1 is connect with the second end of capacitor C16,58 feet and 59 feet of master chip U2 The output end of sensor module is connected, 20 feet and 21 feet of master chip U2 are the output end of control module.As master chip U2's STM32F103 family chip, it is full-featured and cost is relatively low, input terminal of 58 feet and 59 feet of master chip U2 as control module The signal sent from sensor module output end is received, after treatment, 20 feet of master chip U2 and 21 feet are as control mould The output end output control signal of block, control motor adjust photovoltaic panel inclination angle.

24 feet of the sensor chip U1 are connect as data-signal mouth with 59 feet of the master chip U2, the sensing 23 feet of device chip U1 are connect as clock signal mouth with 58 feet of the master chip U2.Sensor chip U1 uses I2C bus Communication modes communication, keeps the communication of two modules very reliable.

The cathode of the input port connection diode D1 of the conversion chip VR1, the cathode of diode D1 pass through several capacitors Ground connection, the anode of diode D1 connect external power supply, the first end of the delivery outlet connection inductance L1 of conversion chip VR1, inductance L1 First end by a capacity earth, for the second end of inductance L1 by several capacity earths, the second end of inductance L1 is voltage The output end of conversion module.LM1117-3.3 as conversion chip VR1 is in LM1117 low difference voltage regulator series One 3.3V fixed voltage exports model, has section space-efficient SOT-223 and LLP encapsulation, current limit and heat protection function, Electric current is exported up to 800mA, these features make LM1117-3.3 chip be very suitable to be used herein, and conversion chip VR1 will be outer It connects power supply and is converted to control power supply and be supplied to sensor module and control module, the power supply of conversion chip VR1 output has steady Qualitative high advantage, improves the reliability of circuit.

It should be noted that the specific embodiment is only used for that technical solution is further described, it is not used in and limits the skill The range of art scheme, any modifications, equivalent substitutions and improvements etc. based on this technical solution are regarded as in the utility model In protection scope.

Claims (6)

1. a kind of solar tracking tracing detection circuit for photovoltaic system, which is characterized in that including voltage transformation module, sensor die Block and control module, the voltage transformation module, sensor module and control module integrate in one piece of PCB circuit board, electricity Conversion module input terminal is pressed to connect external power supply, the power end of the output end connection sensor module of voltage transformation module and control The power end of module, the input terminal of the output end connection controller module of sensor module, the output end of control module be for Control the signal end of motor.

2. a kind of solar tracking tracing detection circuit for photovoltaic system according to claim 1, which is characterized in that the biography Sensor module includes sensor chip U1, resistance R1, resistance R2, capacitor C12, capacitor C13, capacitor C14 and capacitor C15, described Sensor chip U1 is MPU6050 gyroscope chip, 1 foot, 9 feet, 11 feet and the 18 feet ground connection of sensor chip U1, sensor core The output end of 8 feet of piece U1 and 13 feet connection power module, 1 foot and 8 feet of sensor chip U1 are connected by capacitor C12, are passed 10 feet and 11 feet of sensor chip U1 are connected by capacitor C14, and 18 feet and 20 feet of sensor chip U1 are connected by capacitor C13 It connects, 13 feet of sensor chip U1 are grounded by capacitor C15, and the one end resistance R1 connects the output end of power module, and the other end connects 24 feet of sensor chip U1, the output end of one end connection power module of resistance R2 are connect, the other end connects sensor chip U1 23 feet, 24 feet and 23 feet of sensor chip U1 are the output end of sensor module.

3. a kind of solar tracking tracing detection circuit for photovoltaic system according to claim 2, which is characterized in that the control Molding block includes master chip U2, resistance R3, resistance R4, capacitor C16, capacitor C17, capacitor C18, crystal oscillator Y1 and button S1, described Master chip U2 is STM32F103 family chip, and 13 feet of master chip U2 connect the output end of voltage transformation module, master chip U2's The first end of 12 feet, 28 feet and 60 feet ground connection, 6 feet of master chip U2 and crystal oscillator Y1, the first end of resistance R3 and capacitor C18 The second end of first end connection, the second end ground connection of capacitor C18,5 feet of master chip U2 and crystal oscillator Y1, the second end of resistance R3 with And the first end connection of capacitor C17, the second end ground connection of capacitor C17,7 feet of master chip U2 and the first end and electricity of button S1 The first end connection of R4, the output end of the second end connection voltage transformation module of resistance R4 are hindered, the second end ground connection of button S1 is pressed The first end of button S1 is connect with the first end of capacitor C16, and the second end of button S1 is connect with the second end of capacitor C16, master chip The output end of 58 feet of U2 and 59 feet connection sensor module, 20 feet and 21 feet of master chip U2 are the output end of control module.

4. a kind of solar tracking tracing detection circuit for photovoltaic system according to claim 3, which is characterized in that the biography 24 feet of sensor chip U1 are connect as data-signal mouth with 59 feet of the master chip U2,23 feet of the sensor chip U1 It is connect as clock signal mouth with 58 feet of the master chip U2.

5. a kind of solar tracking tracing detection circuit for photovoltaic system according to claim 1, which is characterized in that the electricity Pressure conversion module includes conversion chip VR1, diode D1, inductance L1 and several capacitors, the input port connection two of conversion chip VR1 The cathode of pole pipe D1, by several capacity earths, the anode of diode D1 connects external power supply, converts core the cathode of diode D1 The first end of the delivery outlet connection inductance L1 of piece VR1, the first end of inductance L1 pass through a capacity earth, the second end of inductance L1 By several capacity earths, the second end of inductance L1 is the output end of voltage transformation module.

6. a kind of solar tracking tracing detection circuit for photovoltaic system according to claim 5, which is characterized in that described turn Changing chip VR1 is LM1117-3.3 voltage stabilizing chip.