CN204858727U - A photovoltaic power supply system for reviewing canopy - Google Patents
A photovoltaic power supply system for reviewing canopy Download PDFInfo
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- CN204858727U CN204858727U CN201520578365.2U CN201520578365U CN204858727U CN 204858727 U CN204858727 U CN 204858727U CN 201520578365 U CN201520578365 U CN 201520578365U CN 204858727 U CN204858727 U CN 204858727U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The embodiment of the utility model provides a photovoltaic power supply system for reviewing canopy is related to, include: solar photovoltaic board, the transfer circuit that steps up, DCDC charger, storage battery, DCAC inverter circuit, line charger and control module, when the exposure intensity reached first threshold value, control module produced control signal control switch -on solar photovoltaic board and steps up circuit connection between the transfer circuit, supplies power for the direct current signal solar energy transformation for the DC load, the transfer circuit that steps up is connected with inverter circuit, is the alternating current signal with direct current electric signal transition through inverter circuit, for the alternating load power supply, when the exposure intensity was lighter than first threshold value, control module produced the 2nd control signal control storage battery and supplies power to the DC load to control storage battery be connected with inverter circuit, supplies power for the alternating current signal direct current electric signal transition of storage battery output for the alternating load through inverter circuit.
Description
Technical field
The utility model relates to generation of electricity by new energy technical field of energy storage, particularly relates to a kind of photovoltaic power supply system for warm canopy.
Background technology
Greenhouse (greenhouse), also known as greenhouse.Energy printing opacity, insulation, be used to the facility of cultivated plant.In the season being not suitable for plant growth, greenhouse breeding time and increase yield can be provided, be used for plant culture or the nursery etc. such as low temperature season warm season vegetable, flowers, forest.
There is the shortcomings such as resource utilization is low, operation cost is high, insulation input is high, production benefit is low in traditional warmhouse booth.
Solar energy greenhouse is exactly the energy utilizing the sun, improves the indoor temperature in hot house or in glass room, to meet the requirement of plant growth to temperature.But in existing solar energy greenhouse, the intelligence that cannot realize mixed tensor input switches, weather is not good cannot utilize solar energy in, the temperature in booth just not easily ensures, also needs manual intervention to control.
Utility model content
The purpose of this utility model is the defect for prior art, a kind of photovoltaic power supply system for warm canopy is provided, solar power system can be adopted to carry out the power supply input of warm temperature of shed control or adopt batteries or mains system to carry out power supply input according to solar light irradiation intensity Based Intelligent Control, thus realize the Automated condtrol of warm canopy electric power system, while energy-conserving and environment-protective, improve the power supply reliability of system.
For achieving the above object, the utility model provides a kind of photovoltaic power supply system for warm canopy, comprising:
Solar energy photovoltaic panel, boost conversion circuit, DC/DC charger, batteries, DC/AC inverter circuit, line charger and control module;
Described solar energy photovoltaic panel is arranged at the top of described temperature canopy, and described control module is connected respectively with solar energy photovoltaic panel, boost conversion circuit, DC/DC charger, batteries, DC/AC inverter circuit and line charger;
Described control module detects the solar light irradiation intensity that solar radiation plate receives, when exposure intensity meets or exceeds first threshold, produce the first control signal control connection solar energy photovoltaic panel to be connected with the circuit between boost conversion circuit, convert solar energy into DC signal, for DC load is powered; Described boost conversion circuit is also connected with DC/AC inverter circuit, described DC signal is converted to ac signal, for AC load is powered by described DC/AC inverter circuit;
When exposure intensity is less than first threshold, described control module produces the second control signal and controls described batteries and power to described DC load, and control described batteries to be connected with described DC/AC inverter circuit, the DC signal that described batteries exports is converted to ac signal, for AC load is powered by described DC/AC inverter circuit.
Preferably, when the power output of described solar energy photovoltaic panel is greater than described AC load and described DC load power demand sum, described control module generation the 3rd control signal controls described boost conversion circuit and is connected with described DC/DC charger, and control described DC/DC charger to be connected with described batteries, after described DC signal being carried out level conversion by described DC/DC charger, described batteries is charged.
Preferably, when exposure intensity is less than first threshold, the output voltage of described control module to described batteries detects, when described output voltage is less than Second Threshold, described control module produces the 4th control signal, the circuit connected between described line charger to described batteries connects, and is charged to described batteries by civil power.
Preferably, described control module comprises: digital signal processor, multiple signal acquisition processing circuit, multiple drive circuit, multiple hardware protection circuit and electromagnetic valve actuating gear drive circuit;
Wherein, first signal acquisition processing circuit gather described DC input voltage, output voltage, input current, the output current of DC charger, send to described digital signal processor, the first pulse-width signal is generated by described digital signal processor processes, send to the first drive circuit, drive described DC the power tube of DC charger; Described digital signal processor also according to described input voltage, output voltage, input current, output current determine described DC the whether overvoltage of DC charger, overcurrent, when there is overvoltage or overcurrent, produce interrupt signal send to the first hardware protection circuit, by the first hardware protection circuit to described DC DC charger carry out insulation blocking;
Secondary signal acquisition process circuit gathers input voltage, output voltage, input current, the output current of described line charger, send to described digital signal processor, the second pulse-width signal is generated by described digital signal processor processes, send to the second drive circuit, drive the power tube of described line charger; Described digital signal processor also determines the whether overvoltage of described line charger, overcurrent according to described input voltage, output voltage, input current, output current, when there is overvoltage or overcurrent, produce interrupt signal and send to the second hardware protection circuit, by the second hardware protection circuit, insulation blocking is carried out to described line charger;
3rd signal acquisition processing circuit gathers the intensity of illumination of described solar energy photovoltaic panel, temperature, output voltage and output current, sends to described digital signal processor;
4th signal acquisition processing circuit gathers input voltage, output voltage, input current, the output current of described boost conversion circuit, send to described digital signal processor, the 3rd pulse-width signal is generated by described digital signal processor processes, send to four-wheel drive circuit, drive the power tube of described boost conversion circuit; Described digital signal processor also determines the whether overvoltage of described boost conversion circuit, overcurrent according to described input voltage, output voltage, input current, output current, when there is overvoltage or overcurrent, produce interrupt signal and send to the 4th hardware protection circuit, by the 4th hardware protection circuit, insulation blocking is carried out to described boost conversion circuit;
5th signal acquisition processing circuit gathers described batteries both end voltage, charging and discharging currents, batteries temperature, sends to described digital signal processor;
6th signal acquisition processing circuit gathers input voltage, output voltage, input current, the output current of described DC/AC inverter circuit, send to described digital signal processor, the 4th pulse-width signal is generated by described digital signal processor processes, send to the 6th drive circuit, drive the power tube of described DC/AC inverter circuit; Described digital signal processor also determines the whether overvoltage of described DC/AC inverter circuit, overcurrent according to described input voltage, output voltage, input current, output current, when there is overvoltage or overcurrent, produce interrupt signal and send to the 6th hardware protection circuit, by the 6th hardware protection circuit, insulation blocking is carried out to described DC/AC inverter circuit;
Described digital signal processor is to the intensity of illumination of each input voltage received, output voltage, input current, output current, solar energy photovoltaic panel, temperature, output voltage and output current, and batteries both end voltage, charging and discharging currents, batteries temperature process, produce each control signal;
Described electromagnetic valve actuating gear drive circuit drives being switched on or switched off of related circuit according to control signal described in each.
Preferred further, described digital signal processor obtains described batteries current remaining capacity according to described batteries both end voltage and charging and discharging currents, estimates discharge time or estimate the charging interval.
Preferred further, described control module also comprises:
Display unit, be connected with described digital signal processor, to the intensity of illumination of described solar energy photovoltaic panel, temperature, output voltage, output current, batteries both end voltage, charging and discharging currents, current remaining capacity, batteries temperature, estimate discharge time or estimate that the charging interval shows.
Further preferably, supply line's connection status that described display unit is also current to described photovoltaic power supply system shows.
The photovoltaic power supply system for warm canopy that the utility model embodiment provides, solar power system can be adopted to carry out the power supply input of warm temperature of shed control or adopt batteries or mains system to carry out power supply input according to solar light irradiation intensity Based Intelligent Control, thus realize the Automated condtrol of warm canopy electric power system, while energy-conserving and environment-protective, improve the power supply reliability of system.
Accompanying drawing explanation
The block diagram of a kind of photovoltaic power supply system for warm canopy that Fig. 1 provides for the utility model embodiment.
Embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
The block diagram of the photovoltaic power supply system for warm canopy that Fig. 1 provides for the utility model embodiment.Photovoltaic power supply system comprises: solar energy photovoltaic panel 20, boost conversion circuit 30, DC/DC charger 40, batteries 50, DC/AC inverter circuit 60, line charger 70 and control module 10;
Solar energy photovoltaic panel 20 is arranged at the top of photovoltaic temperature canopy; while meeting plant growth needs, illumination can be gathered and generate electricity, again can as the peripheral protective layer of warm canopy; there is insulation, reduce disease and pest, the boisterous effects such as anti-ice hail, radiation, heavy rain, high wind.
The solar light irradiation intensity that control module 10 pairs of solar radiation plates 20 receive detects, when exposure intensity meets or exceeds first threshold, produce the first control signal control connection solar energy photovoltaic panel 20 to be connected with the circuit between boost conversion circuit 30, convert solar energy into DC signal, for DC load is powered; Boost conversion circuit 30 is also connected with DC/AC inverter circuit 60, by DC/AC inverter circuit 60, DC signal is converted to ac signal, for AC load is powered;
Now, control module 10 also detects the power output of solar energy photovoltaic panel 20, when the power output of solar energy photovoltaic panel 20 is greater than AC load and DC load power demand sum, control module 10 produces the 3rd control signal and controls described boost conversion circuit 30 and be connected with DC/DC charger 40, and control DC/DC charger 40 is connected with batteries 50, after DC signal being carried out level conversion by DC/DC charger 40, batteries 50 is charged.
When exposure intensity is less than first threshold, control module 10 produces the second control signal control batteries 50 and powers to DC load, and control batteries 50 to be connected with DC/AC inverter circuit 60, by DC/AC inverter circuit 60, the DC signal that batteries 50 exports is converted to ac signal, for AC load is powered.
Now, control module 10 also detects the output voltage of batteries 50, and when output voltage is less than Second Threshold, control module 10 produces the 4th control signal, the circuit connected between line charger 70 to batteries 50 connects, and is charged to 50 groups, storage battery by civil power.
It can thus be appreciated that, the photovoltaic power supply system for warm canopy that the utility model provides, have employed the scheme of two road combined power supplies, one is the solar powered scheme by comprising solar energy photovoltaic panel 20, boost conversion circuit 30, DC/DC charger 40, batteries 50, DC/AC inverter circuit 60, and two is the mains-supplied schemes by comprising line charger 70, batteries 50, DC/AC inverter circuit 60.Realized by the Real-time Collection of control module 10 and controlling during switching between them.The photovoltaic power supply system for warm canopy that the utility model provides, while energy-conserving and environment-protective, improves the power supply reliability of system.
In order to better understand implementation of the present utility model, below each module in photovoltaic power supply system is described in detail.
Solar energy photovoltaic panel 20, utilize photovoltaic effect solar energy to be converted to direct current to export, the output voltage of solar energy photovoltaic panel 20 is less, needs to be connected with boost conversion circuit 30 by switch S 10, output voltage and electric current is sent to control module 10 simultaneously and carries out Real-time Collection.
The major function of boost conversion circuit 30 has two: one to be boost function, is boosted by the voltage that prime solar energy photovoltaic panel 20 exports.Second function is maximal power tracing (MPPT) function.For improving the generating efficiency of photovoltaic system as much as possible, the utility model is based on photovoltaic cell Mathematical Modeling, be changed to foundation with photovoltaic power output, adopt self adaptation disturbance observation to carry out MPPT maximum power point tracking control, substantially increase the generating efficiency of photovoltaic system.Boost conversion circuit 30 connects DC load according under the control of control module 10 by switch S 12, S18, connects DC/DC charger 40, link DC/AC inverter circuit 60 by switch S 13 by switch S 14.
DC/DC charger 40, when the power output of solar energy photovoltaic panel 20 is greater than the demand of alternating current-direct current load, is stored in batteries 50 by dump energy by DC/DC charger 40, is night or the overcast and rainy deposit providing power to various alternating current-direct current load.
The charging modes of DC/DC charger 40 pairs of batteries 50 can adopt trickle charge, constant current charge, constant voltage charge and floating charge four stage intelligent charge scheme.
Batteries 50 is the energy storage device of photovoltaic power supply system, adopt trickle charge, constant current charge, constant voltage charge, floating charge four stage DC/DC intelligent charging mode, when batteries 50 two ends initial voltage being detected by control module 10 higher than threshold voltage, batteries 50 directly enters constant-current charging phase by automatically crossing this one-phase of trickle charge; When batteries 50 two ends initial voltage is lower than threshold voltage, control module 10 is charged with very little charging current to batteries 50, until when terminal voltage reaches threshold voltage, will enter the second constant-current charging phase.This will optimize the operational environment of batteries 50 greatly, reduces the loss to storage battery, extends the useful life of batteries 50.In a preferred embodiment, on existing intelligent charger basis, soft switch technique is introduced by resonant network, under making electric and electronic power switching device be operated in Sofe Switch environment, open in turn off process at power switch pipe, electric current and voltage there will not be simultaneously non-vanishing situation, greatly reduces the switching loss of power switch pipe.
The Main Function of line charger 70 is, at rainy weather or night, solar energy photovoltaic panel 20 power output is lower can not be maintained under various alternating current-direct current load continues normal operation, control module 10 control switch S10, S11, S12, S13, S14, S15, S18, S19 disconnect, switch S 21, S22 are closed, power to AC load, Simultaneous Switching S23 closes, and utilizes civil power to be charged by line charger 70 accumulators group 50.
In a concrete scheme, line charger 70 comprises previous diodes uncontrollable rectifier circuit and rear class isolation inverse-excitation converting circuit two parts.There is feature: one, have employed trickle charge, constant current charge, constant voltage charge, floating charge four stage intelligent charging mode, when batteries 50 two ends initial voltage being detected by control module 10 higher than threshold voltage, batteries 50 directly enters constant-current charging phase by automatically crossing this one-phase of trickle charge; When batteries 50 two ends initial voltage is lower than threshold voltage, control module 10 is charged with very little charging current to storage battery, until when terminal voltage reaches threshold voltage, will enter the second constant-current charging phase.This, by the operational environment of optimization group greatly 50, reduces the loss to group 50, the useful life of prolongation group 50.Two, on existing line charger 70 basis, soft switch technique is introduced by resonant network, under making electric and electronic power switching device be operated in Sofe Switch environment, open in turn off process at power switch pipe, electric current and voltage there will not be simultaneously non-vanishing situation, greatly reduces the switching loss of power switch pipe.
DC/AC inverter circuit 60, the direct current energy that the direct current energy exported by boost conversion circuit 30 by solar energy photovoltaic panel 20 and batteries 50 are exported, is reverse into the AC energy required for the AC load such as alternating current motor, water pump.
Control module 10 comprises: digital signal processor 7, multiple signal acquisition processing circuit, multiple drive circuit, multiple hardware protection circuit, electromagnetic valve actuating gear drive circuit 8 and display unit 9;
Wherein, signal acquisition processing circuit 1 gather DC the signal such as input voltage, output voltage, input current, output current, charger temperature of DC charger 40, send to digital signal processor 8, generation first pulse-width signal is processed by digital signal processor 8, send to drive circuit 1, drive DC the power tube of DC charger 40; Digital signal processor 7 also according to input voltage, output voltage, input current, output current, charger temperature etc. determine DC DC charger 40 whether overvoltage, overcurrent, excess temperature, when occur overvoltage, overcurrent or excess temperature time, produce interrupt signal send to hardware protection circuit 1, by hardware protection circuit 1 couple of DC DC charger 40 carry out insulation blocking;
In a concrete implementation; after receiving interrupt signal; hardware protection circuit 1 produces low level and sends into ARM microcontroller I/O pin; when ARM microcontroller detects low level; explanation has abnormal conditions; to automatically enter protection interruption subroutine, export and block drive singal to drive circuit 1, thus reach automatic hardware protection function.
Signal acquisition processing circuit 2 gathers the signal such as input voltage, output voltage, input current, output current, charger temperature of line charger 70, send to described digital signal processor 7, generation second pulse-width signal is processed by digital signal processor 7, send to drive circuit 2, drive the power tube of line charger 70; Digital signal processor 7 also determines the whether overvoltage of described line charger, overcurrent, excess temperature according to signals such as input voltage, output voltage, input current, output current, charger temperature, when occur overvoltage, overcurrent or excess temperature time, produce interrupt signal and send to hardware protection circuit 2, carry out insulation blocking by hard, part protective circuit 2 pairs of line chargers 70; Specific implementation can be identical with the implementation of above-mentioned hardware protection circuit 1, repeats no more.
Signal acquisition processing circuit 3 gathers the intensity of illumination of solar energy photovoltaic panel 20, temperature, output voltage and output current, sends to digital signal processor 7; The output voltage collected, output current calculate by digital signal processor 7, obtain the real-time power output with intensity of illumination, temperature correlation, and this is controlled as rear class boost conversion circuit 30 maximal power tracing algorithm, electromagnetic valve actuating gear drive circuit 8 perform switch close with disconnect control, which carries out the foundation of powering in Systematic selection duplex feeding scheme.
Signal acquisition processing circuit 4 gathers input voltage, output voltage, input current, the output current of boost conversion circuit 30, send to digital signal processor 7, generation the 3rd pulse-width signal is processed by digital signal processor 7, send to drive circuit 4, drive the power tube of boost conversion circuit 30; Digital signal processor 7 is also according to the whether overvoltage of input voltage, output voltage, input current, output current determination boost conversion circuit 30, overcurrent, when there is overvoltage or overcurrent, produce interrupt signal and send to hardware protection circuit 4, carry out insulation blocking by hardware protection circuit 4 pairs of boost conversion circuits 30; Specific implementation can be identical with the implementation of above-mentioned hardware protection circuit 1, repeats no more.
Signal acquisition processing circuit 5 gathers described batteries 50 both end voltage, charging and discharging currents, batteries temperature, sends to digital signal processor 7; Digital signal processor 7, according to corresponding program algorithm, controls to connect the charging to batteries 50.Further, digital signal processor 7 obtains batteries 50 current remaining capacity according to batteries 50 both end voltage and charging and discharging currents, estimates discharge time or estimate the charging interval.
Signal acquisition processing circuit 6 gathers input voltage, output voltage, input current, the output current of DC/AC inverter circuit 60, send to digital signal processor 7, generation the 4th pulse-width signal is processed by digital signal processor 7, send to drive circuit 6, drive the power tube of DC/AC inverter circuit 60; Digital signal processor 7 also determines DC/AC inverter circuit 60 whether overvoltage, overcurrent according to input voltage, output voltage, input current, output current, when there is overvoltage or overcurrent, produce interrupt signal and send to hardware protection circuit 6, carry out insulation blocking by hardware protection circuit 6 pairs of DC/AC inverter circuits 60; Specific implementation can be identical with the implementation of above-mentioned hardware protection circuit 1, repeats no more.
Digital signal processor 7 is to the intensity of illumination of each input voltage received, output voltage, input current, output current, solar energy photovoltaic panel 10, temperature, output voltage and output current, and batteries 50 both end voltage, charging and discharging currents, batteries temperature process, produce each control signal;
Electromagnetic valve actuating gear drive circuit 8 drives being switched on or switched off of related circuit according to each control signal.
Display unit 9, be connected with digital signal processor 7, to the intensity of illumination of solar energy photovoltaic panel 10, temperature, output voltage, output current, batteries both end voltage, charging and discharging currents, current remaining capacity, batteries temperature, estimate discharge time or estimate that the charging interval shows.In addition, display unit 9 can also the supply line connection status current to described photovoltaic power supply system show.Inform that the power supply plan of the current employing of user is photovoltaic power supply or mains-supplied.
Solar energy power generating is a kind of green, environmental protection, pollution-free, inexhaustible high efficient energy sources, is applied in the warm canopy in agricultural, can saves a large amount of electric energy, reduces environmental pollution, produces very large economic benefit.Simultaneously also for modern countryside strengthens environmental consciousness, improve the scientific and technological idea of people, will far-reaching social benefit be produced.
The photovoltaic power supply system for warm canopy that the utility model embodiment proposes, adopt the scheme of photovoltaic power supply and the road combined power supply of mains-supplied two, and the automatic switchover conversion of duplex feeding can be realized according to the situation that shines upon, while energy-conserving and environment-protective, improve the power supply reliability of system.
Professional should recognize further, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present utility model.
The software module that the method described in conjunction with embodiment disclosed herein or the step of algorithm can use hardware, processor to perform, or the combination of the two is implemented.Software module can be placed in the storage medium of other form any known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
Above-described embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only embodiment of the present utility model; and be not used in restriction protection range of the present utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (7)
1. for a photovoltaic power supply system for warm canopy, it is characterized in that, described photovoltaic power supply system comprises: solar energy photovoltaic panel, boost conversion circuit, DC/DC charger, batteries, DC/AC inverter circuit, line charger and control module;
Described solar energy photovoltaic panel is arranged at the top of described temperature canopy, and described control module is connected respectively with solar energy photovoltaic panel, boost conversion circuit, DC/DC charger, batteries, DC/AC inverter circuit and line charger;
Described control module detects the solar light irradiation intensity that solar radiation plate receives, when exposure intensity meets or exceeds first threshold, produce the first control signal control connection solar energy photovoltaic panel to be connected with the circuit between boost conversion circuit, convert solar energy into DC signal, for DC load is powered; Described boost conversion circuit is also connected with DC/AC inverter circuit, described DC signal is converted to ac signal, for AC load is powered by described DC/AC inverter circuit;
When exposure intensity is less than first threshold, described control module produces the second control signal and controls described batteries and power to described DC load, and control described batteries to be connected with described DC/AC inverter circuit, the DC signal that described batteries exports is converted to ac signal, for AC load is powered by described DC/AC inverter circuit.
2. photovoltaic power supply system according to claim 1, it is characterized in that, the power output of described control module to described solar energy photovoltaic panel detects, when the power output of described solar energy photovoltaic panel is greater than described AC load and described DC load power demand sum, described control module generation the 3rd control signal controls described boost conversion circuit and is connected with described DC/DC charger, and control described DC/DC charger to be connected with described batteries, after described DC signal being carried out level conversion by described DC/DC charger, described batteries is charged.
3. photovoltaic power supply system according to claim 1, it is characterized in that, when exposure intensity is less than first threshold, the output voltage of described control module to described batteries detects, when described output voltage is less than Second Threshold, described control module produces the 4th control signal, and the circuit connected between described line charger to described batteries connects, and is charged to described batteries by civil power.
4. according to the arbitrary described photovoltaic power supply system of claim 1-3, it is characterized in that, described control module comprises: digital signal processor, multiple signal acquisition processing circuit, multiple drive circuit, multiple hardware protection circuit and electromagnetic valve actuating gear drive circuit;
Wherein, first signal acquisition processing circuit gather described DC input voltage, output voltage, input current, the output current of DC charger, send to described digital signal processor, the first pulse-width signal is generated by described digital signal processor processes, send to the first drive circuit, drive described DC the power tube of DC charger; Described digital signal processor also according to described input voltage, output voltage, input current, output current determine described DC the whether overvoltage of DC charger, overcurrent, when there is overvoltage or overcurrent, produce interrupt signal send to the first hardware protection circuit, by the first hardware protection circuit to described DC DC charger carry out insulation blocking;
Secondary signal acquisition process circuit gathers input voltage, output voltage, input current, the output current of described line charger, send to described digital signal processor, the second pulse-width signal is generated by described digital signal processor processes, send to the second drive circuit, drive the power tube of described line charger; Described digital signal processor also determines the whether overvoltage of described line charger, overcurrent according to described input voltage, output voltage, input current, output current, when there is overvoltage or overcurrent, produce interrupt signal and send to the second hardware protection circuit, by the second hardware protection circuit, insulation blocking is carried out to described line charger;
3rd signal acquisition processing circuit gathers the intensity of illumination of described solar energy photovoltaic panel, temperature, output voltage and output current, sends to described digital signal processor;
4th signal acquisition processing circuit gathers input voltage, output voltage, input current, the output current of described boost conversion circuit, send to described digital signal processor, the 3rd pulse-width signal is generated by described digital signal processor processes, send to four-wheel drive circuit, drive the power tube of described boost conversion circuit; Described digital signal processor also determines the whether overvoltage of described boost conversion circuit, overcurrent according to described input voltage, output voltage, input current, output current, when there is overvoltage or overcurrent, produce interrupt signal and send to the 4th hardware protection circuit, by the 4th hardware protection circuit, insulation blocking is carried out to described boost conversion circuit;
5th signal acquisition processing circuit gathers described batteries both end voltage, charging and discharging currents, batteries temperature, sends to described digital signal processor;
6th signal acquisition processing circuit gathers input voltage, output voltage, input current, the output current of described DC/AC inverter circuit, send to described digital signal processor, the 4th pulse-width signal is generated by described digital signal processor processes, send to the 6th drive circuit, drive the power tube of described DC/AC inverter circuit; Described digital signal processor also determines the whether overvoltage of described DC/AC inverter circuit, overcurrent according to described input voltage, output voltage, input current, output current, when there is overvoltage or overcurrent, produce interrupt signal and send to the 6th hardware protection circuit, by the 6th hardware protection circuit, insulation blocking is carried out to described DC/AC inverter circuit;
Described digital signal processor is to the intensity of illumination of each input voltage received, output voltage, input current, output current, solar energy photovoltaic panel, temperature, output voltage and output current, and batteries both end voltage, charging and discharging currents, batteries temperature process, produce each control signal;
Described electromagnetic valve actuating gear drive circuit drives being switched on or switched off of related circuit according to control signal described in each.
5. photovoltaic power supply system according to claim 4, is characterized in that, described digital signal processor obtains described batteries current remaining capacity according to described batteries both end voltage and charging and discharging currents, estimates discharge time or estimate the charging interval.
6. photovoltaic power supply system according to claim 5, is characterized in that, described control module also comprises:
Display unit, be connected with described digital signal processor, to the intensity of illumination of described solar energy photovoltaic panel, temperature, output voltage, output current, batteries both end voltage, charging and discharging currents, current remaining capacity, batteries temperature, estimate discharge time or estimate that the charging interval shows.
7. photovoltaic power supply system according to claim 6, is characterized in that, also current to the described photovoltaic power supply system supply line's connection status of described display unit shows.
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| CN106655473A (en) * | 2017-01-16 | 2017-05-10 | 广东美的制冷设备有限公司 | Electrical control system and method suitable for air conditioner of refrigerator car |
| CN107180886A (en) * | 2017-03-29 | 2017-09-19 | 深圳市富友昌科技股份有限公司 | Photovoltaic power generation apparatus and wearing electronic equipment |
| CN107437845A (en) * | 2017-09-14 | 2017-12-05 | 吴志强 | A kind of power supply based on solar energy |
| CN109301921A (en) * | 2018-10-10 | 2019-02-01 | 上海盈达空调设备股份有限公司 | A kind of intelligent power controller |
| CN111200294A (en) * | 2018-11-19 | 2020-05-26 | 日月元科技(深圳)有限公司 | High-frequency bidirectional photovoltaic energy inversion energy storage system |
| CN112217271A (en) * | 2020-10-30 | 2021-01-12 | 广东奥科伟业科技发展有限公司 | Intelligent power supply system of sunshine room |
| CN113419458A (en) * | 2021-07-03 | 2021-09-21 | 山西省煤炭地质物探测绘院 | Geological disaster monitoring system based on 5G communication |
-
2015
- 2015-08-04 CN CN201520578365.2U patent/CN204858727U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655473A (en) * | 2017-01-16 | 2017-05-10 | 广东美的制冷设备有限公司 | Electrical control system and method suitable for air conditioner of refrigerator car |
| CN106655473B (en) * | 2017-01-16 | 2023-03-28 | 广东美的制冷设备有限公司 | Electrical control system and method suitable for air conditioner of refrigerator car |
| CN107180886A (en) * | 2017-03-29 | 2017-09-19 | 深圳市富友昌科技股份有限公司 | Photovoltaic power generation apparatus and wearing electronic equipment |
| CN107437845A (en) * | 2017-09-14 | 2017-12-05 | 吴志强 | A kind of power supply based on solar energy |
| CN109301921A (en) * | 2018-10-10 | 2019-02-01 | 上海盈达空调设备股份有限公司 | A kind of intelligent power controller |
| CN111200294A (en) * | 2018-11-19 | 2020-05-26 | 日月元科技(深圳)有限公司 | High-frequency bidirectional photovoltaic energy inversion energy storage system |
| CN111200294B (en) * | 2018-11-19 | 2022-03-22 | 日月元科技(深圳)有限公司 | High-frequency bidirectional photovoltaic energy inversion energy storage system |
| CN112217271A (en) * | 2020-10-30 | 2021-01-12 | 广东奥科伟业科技发展有限公司 | Intelligent power supply system of sunshine room |
| CN113419458A (en) * | 2021-07-03 | 2021-09-21 | 山西省煤炭地质物探测绘院 | Geological disaster monitoring system based on 5G communication |
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