CN104201761B - The electric power system that a kind of photovoltaic and communication power supply are applied in combination - Google Patents
The electric power system that a kind of photovoltaic and communication power supply are applied in combination Download PDFInfo
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- CN104201761B CN104201761B CN201410494305.2A CN201410494305A CN104201761B CN 104201761 B CN104201761 B CN 104201761B CN 201410494305 A CN201410494305 A CN 201410494305A CN 104201761 B CN104201761 B CN 104201761B
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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
Abstract
This application discloses the electric power system that a kind of photovoltaic is applied in combination with communication power supply, electric power system is connected with communication equipment, electric power system includes batteries, also include: commercial power rectification module, photovoltaic generating module, DC-AC DC converting module and intelligent control module, commercial power rectification module, for mains electricity being changed into the first direct current, and transmit to DC-AC DC converting module；Photovoltaic generating module, for sunshine is converted into the second direct current, and transmits to DC-AC DC converting module；Intelligent control module, for carrying out control of discharge to DC-AC DC converting module, to realize the real-time switching that commercial power rectification module for power supply and photovoltaic generating module are powered.The invention have the advantage that first, ensure safety power supply, shares a set of translation circuit, and isolating diode also can ensure the safety realizing power supply.Second, cut operating costs and energy consumption, alleviate maintenance workload.
Description
Technical field
The invention belongs to power technique fields, especially, relate to a kind of photovoltaic and be applied in combination with communication power supply
Electric power system.
Background technology
At present, the photovoltaic generation and the method for supplying power to that embed the power supply system for communications are to use two sets completely self-contained
High frequency switch power realizes, prior art it is generally required to two set high frequency switch power supply systems work simultaneously,
On the one hand, the direct current that photovoltaic sends is for powering to communication equipment；On the other hand, due to photovoltaic not
Stability, in order to ensure the safe power supply of communication equipment, the another set of HF switch electricity by mains-supplied
Origin system, it is still desirable to long-term parallel operation.
Publication No. is that the patent document of CN102545299A discloses a kind of communication solar energy power generating
System and method of supplying power to, power-supply system includes using electric loading, and by the switch electricity of civil power supply electric loading
Source, including: solar panels, it is used for receiving solar energy；Solar converter, with solar panels and electricity consumption
Load connects, and with switch power parallel, solar converter includes: power model, will receive too
The energy of sun energy plate is converted to electric energy and is supplied to use electric loading；Monitoring/control module, is connected with power model,
Controlling the output voltage output voltage higher than Switching Power Supply of power model, the power controlling power model is big
In the peak power rating of solar panels, and the actual output peak power of solar panels is less than using electric loading
General power.The solar electrical energy generation of this technology can improve the utilization ratio to solar energy, but shortcoming is:
Add energy consumption；Add equipment investment and occupy the space that machine room is valuable；Add maintenance workload.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency, it is provided that a kind of photovoltaic and communication power supply are applied in combination
Electric power system, it not only ensure that safe power supply, has also reached effect that is energy-conservation and that reduce cost.
To achieve these goals, the technical solution used in the present invention is:
The electric power system that a kind of photovoltaic and communication power supply are applied in combination, this electric power system is connected with communication equipment
Connecing, this electric power system includes batteries, it is characterised in that also include: commercial power rectification module, photovoltaic
Electricity generation module, DC-AC-DC converting module and intelligent control module, wherein,
Described commercial power rectification module, for mains electricity being changed into the first direct current that voltage is U1,
Receive the switch controlling signal of described intelligent control module, control described first direct current output the most described directly
Stream-AC-DC converter module；
Described photovoltaic generating module, for converting light energy into the second direct current that voltage is U2, described
Voltage U2 is more than voltage U1, meanwhile, receives the switch controlling signal of described intelligent control module, controls
Described second DC power transmission to isolating diode, by described isolating diode output to described direct current-
AC-DC converter module；
Described DC-AC-DC converting module, for receiving the first of described commercial power rectification module output
Direct current or the second direct current of described photovoltaic generating module output, and be converted to alternating current, then by this friendship
Stream electricity is transformed to be sent to the 3rd direct current of described communication equipment；
Described intelligent control module, when luminous energy maintains more than 300 seconds, to described commercial power rectification mould
Block sends cut-off signals, closes described commercial power rectification module defeated to described DC-AC-DC converting module
Described first direct current gone out, and close and set to described communication by described DC-AC-DC converting module
Described 3rd direct current that available is given；Simultaneously by described photovoltaic generating module to described DC-AC-direct current
Conversion module exports described second direct current, and by described DC-AC-DC converting module to described logical
Letter equipment supplies described 3rd direct current, supplements the capacity of described batteries；
When described voltage U2 drops to the first setting value, to described commercial power rectification, module sends unlatching signal,
Described first direct current is exported to described DC-AC-DC converting module by described commercial power rectification module,
Supplied described 3rd direct current by described DC-AC-DC converting module to described communication equipment, supplement
The capacity of described batteries；
When described batteries is discharged to the second setting value, to described commercial power rectification, module sends unlatching signal,
Described first direct current is exported to described DC-AC-DC converting module by described commercial power rectification module,
Supplied described 3rd direct current by described DC-AC-DC converting module to described communication equipment, supplement
The capacity of described batteries；
Described first setting value is the 2/3 of U2 rated voltage；Described second setting value is described batteries
The 60% of rated capacity.
Preferably, described commercial power rectification module is by rectification circuit, filter circuit and power factor correction circuit
Composition.
Preferably, described photovoltaic generating module, the photovoltaic module being connected in parallel including at least two groups.
Preferably, the described photovoltaic module often organized, including at least five photovoltaic cells being connected in series.
Preferably, described DC-AC-DC converting module, including at least three high frequencies being connected in parallel
Switch power module.
Preferably, described batteries, by least ten six ferric phosphate lithium cells or lead-acid battery series connection group
Become.
Preferably, described intelligent control module, is microprocessor further.
The invention have the benefit that
First, ensure safety power supply, commercial power rectification module, photovoltaic generating module, DC-AC-direct current
Conversion module is attached with intelligent control module respectively, and conversion module, by intelligent control module control, makes
Obtain photovoltaic power supply system and can share a set of translation circuit with mains-supplied system, and isolating diode is also
The safety realizing power supply can be ensured.
Second, cut operating costs, overlap with photovoltaic generating system two compared to traditional power supply system for communications
The mode of system independent operating, it is possible to the most energy-conservation, save land, material-saving, and reduce running cost,
Reduce energy consumption, decrease equipment investment and occupy the space that machine room is valuable, and alleviate and safeguard work
Measure.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing further understanding of the present application, constitutes of the application
Point, the schematic description and description of the application is used for explaining the application, is not intended that the application's
Improper restriction.In the accompanying drawings:
Fig. 1 is the structural principle signal of the electric power system that the photovoltaic of the present invention is applied in combination with communication power supply
Figure；
Fig. 2 is the embodiment circuit signal of the electric power system that the photovoltaic of the present invention is applied in combination with communication power supply
Figure.
Fig. 3 is the embodiment schematic diagram of a kind of power factor correction circuit that the circuit shown in Fig. 2 uses；
Fig. 4 is the embodiment signal of the another kind of power factor correction circuit that the circuit shown in Fig. 2 uses
Figure.
Detailed description of the invention
As employed some vocabulary in the middle of specification and claim to censure specific components.This area skill
Art personnel are it is to be appreciated that hardware manufacturer may call same assembly with different nouns.This explanation
In the way of book and claim not difference by title is used as distinguishing assembly, but with assembly in function
On difference be used as distinguish criterion." bag as mentioned by the middle of specification in the whole text and claim
Contain " it is an open language, therefore " comprise but be not limited to " should be construed to." substantially " refer to receivable
In error range, those skilled in the art can solve described technical problem, base in the range of certain error
Originally described technique effect is reached.Specification subsequent descriptions is to implement the better embodiment of the application, right institute
State description be the rule so that the application to be described for the purpose of, be not limited to scope of the present application.This
The protection domain of application is when being as the criterion depending on the defined person of claims.
Embodiment 1
Refer to Fig. 1, the electric power system that the photovoltaic of the present invention and communication power supply are applied in combination includes: electric power storage
Pond group, it is characterised in that also include: commercial power rectification module, photovoltaic generating module, DC-AC-straight
Stream conversion module and intelligent control module, wherein, described commercial power rectification module, for by mains electricity
Changing into the direct current that voltage is U1, this direct current is the first direct current, and receives described Based Intelligent Control
The switch controlling signal of module, to control the voltage the first direct current output as U1 to described DC-AC
-DC converting module.
Described photovoltaic generating module, for converting light energy into the direct current that voltage is U2, this direct current
Being the second direct current, described voltage U2 is slightly larger than voltage U1, meanwhile, receives described intelligent control module
Switch controlling signal, to control the voltage the second DC power transmission as U2 to isolating diode, go forward side by side
One step is by described isolating diode output extremely described DC-AC-DC converting module.
Described DC-AC-DC converting module, is used for receiving described commercial power rectification module, or described light
First direct current of volt electricity generation module output, or the second direct current, and be converted to alternating current, become the most again
It is changed to the 3rd direct current needed for communication equipment.
Described intelligent control module, is used for: when luminous energy is normal and maintains 300 seconds, whole to described civil power
Flow module sends cut-off signals, closes described commercial power rectification module to described DC-AC-DC converting mould
Block output direct current, is further turned off by described DC-AC-DC converting module to described communication equipment
Power supply, now, by described photovoltaic generating module to DC-AC-DC converting module output direct current,
Powered to described communication equipment by described DC-AC-DC converting module and supplement the appearance of batteries
Amount.
When luminous energy drops to the first setting value to U2 extremely, to described commercial power rectification, module sends unlatching
Signal, is exported direct current by described commercial power rectification module to described DC-AC-DC converting module, by
Described DC-AC-DC converting module is powered to communication equipment, and supplements the capacity of described batteries.
Preferably, described first setting value is the 2/3 of U2 rated voltage.
When the general power of photovoltaic generating module can not meet power of communication equipment requirement described in whole communication equipment
Time, the batteries being in floating charge state automatically compensate the power of described photovoltaic generating module shortcoming, when
When described batteries is discharged to the second setting value, to described commercial power rectification, module sends unlatching signal, by
Described commercial power rectification module to DC-AC-DC converting module output direct current, by described DC-AC-
DC converting module is powered to described communication equipment and supplements the capacity of described batteries.Preferably, institute
State that the second setting value is described batteries rated capacity 60%.
Preferably, described commercial power rectification module is by rectification circuit, filter circuit and power factor correction circuit
(PFC) composition, civil power input can use three-phase 380V to introduce according to system power size, it is possible to adopts
Introduce with single-phase 220V.
Preferably, described circuit of power factor correction can improve the power factor of electric equipment, reduces electricity
The harmonic pollution of net.Preferably, its main circuit can use buck, boost type, lifting/lowering pressure type, with
And inverse-excitation type.In the particular embodiment, step-up type power factor correcting circuit can be used, its inductance electricity
Continuously, energy storage inductor as wave filter suppression Radio frequency interference and EMI noise, and can prevent electrical network to master to stream
The high frequency transient impact of circuit.
Preferably, commercial power rectification module is that mains electricity is changed into direct current, wherein, and rectification circuit
Generally can use halfwave rectifier, full-wave rectification, bridge rectifier etc..The present embodiment is for exchanging 50HZ
Power supply becomes DC voltage U1 by rectification circuit and pfc circuit, and the voltage of photovoltaic generating module is U2,
It is designed to U2 slightly larger than U1.
Preferably, described photovoltaic generating module includes solar cell, has positive and negative electrode can be luminous energy
It is converted into the minimum solar battery cell of electric energy.Wherein, photovoltaic cells is the electronic section of photovoltaic cell,
Absorb electronics and be converted into electric energy.
Refer to Fig. 2, as it can be seen, described photovoltaic generating module includes the light that at least two groups are connected in parallel
Photovoltaic assembly.
Preferably, described photovoltaic module uses many according to design voltage standard, and the present embodiment uses five
The photovoltaic cells being connected in series.
Preferably, the voltage of described every photovoltaic cells is 72V, and power is 450W.
Preferably, photovoltaic cells 11 is connected in series photovoltaic cells 12, and photovoltaic cells 12 is connected in series photovoltaic
Unit 13, photovoltaic cells 13 is connected in series photovoltaic cells 14, and photovoltaic cells 14 is connected in series photovoltaic cells
15。
Preferably, photovoltaic cells 21 is connected in series photovoltaic cells 22, and photovoltaic cells 22 is connected in series photovoltaic
Unit 23, photovoltaic cells 23 is connected in series photovoltaic cells 24, and photovoltaic cells 24 is connected in series photovoltaic cells
25。
Preferably, photovoltaic cells 11 connects the positive pole of isolating diode 31, the negative pole of isolating diode 31
Connecting the a1 end of high-frequency switching power supply module 51, the positive pole of isolating diode 31 connects photovoltaic cells 11
Positive pole, the negative pole of photovoltaic cells 11 connects the positive pole of photovoltaic cells 12, and the negative pole of photovoltaic cells 12 is even
Connecing the positive pole of photovoltaic cells 13, the negative pole of photovoltaic cells 13 connects the positive pole of photovoltaic cells 14, photovoltaic list
The negative pole of unit 14 connects the positive pole of photovoltaic cells 15.
Preferably, the negative pole of isolating diode 32 connects the a2 end of high-frequency switching power supply module 52, isolation
The positive pole of diode 32 connects the positive pole of photovoltaic cells 11, and the negative pole of photovoltaic cells 11 connects photovoltaic cells
The positive pole of 12, the negative pole of photovoltaic cells 12 connects the positive pole of photovoltaic cells 13, bearing of photovoltaic cells 13
Pole connects the positive pole of photovoltaic cells 14, and the negative pole of photovoltaic cells 14 connects the positive pole of photovoltaic cells 15.
Preferably, the negative pole of isolating diode 33 connects the a3 end of high-frequency switching power supply module 53, isolation
The positive pole of diode 33 connects the positive pole of photovoltaic cells 11, and the negative pole of photovoltaic cells 11 connects photovoltaic cells
The positive pole of 12, the negative pole of photovoltaic cells 12 connects the positive pole of photovoltaic cells 13, bearing of photovoltaic cells 13
Pole connects the positive pole of photovoltaic cells 14, and the negative pole of photovoltaic cells 14 connects the positive pole of photovoltaic cells 15.
Preferably, the positive pole of isolating diode 31 connects the positive pole of photovoltaic cells 21, photovoltaic cells 21
Negative pole connect the positive pole of photovoltaic cells 22, the negative pole of photovoltaic cells 22 connects the positive pole of photovoltaic cells 23,
The negative pole of photovoltaic cells 23 connects the positive pole of photovoltaic cells 24, and the negative pole of photovoltaic cells 24 connects photovoltaic list
The positive pole of unit 25.
Preferably, the positive pole of isolating diode 32 connects the positive pole of photovoltaic cells 21, photovoltaic cells 21
Negative pole connect the positive pole of photovoltaic cells 22, the negative pole of photovoltaic cells 22 connects the positive pole of photovoltaic cells 23,
The negative pole of photovoltaic cells 23 connects the positive pole of photovoltaic cells 24, and the negative pole of photovoltaic cells 24 connects photovoltaic list
The positive pole of unit 25.
Preferably, the positive pole of isolating diode 33 connects the positive pole of photovoltaic cells 21, photovoltaic cells 21
Negative pole connect the positive pole of photovoltaic cells 22, the negative pole of photovoltaic cells 22 connects the positive pole of photovoltaic cells 23,
The negative pole of photovoltaic cells 23 connects the positive pole of photovoltaic cells 24, and the negative pole of photovoltaic cells 24 connects photovoltaic list
The positive pole of unit 25.
Preferably, described DC-AC-DC converting module includes three HF switch electricity being connected in parallel
Source module: high-frequency switching power supply module 51, high-frequency switching power supply module 52, and high frequency switch power mould
Block 53 is connected in parallel.
Preferably, the b1 end of high-frequency switching power supply module 51 connects the negative pole of photovoltaic cells 15, with photovoltaic
The negative pole of unit 25.
Preferably, the b2 end of high-frequency switching power supply module 52 connects the negative pole of photovoltaic cells 15, with photovoltaic
The negative pole of unit 25.
Preferably, the b3 end of high-frequency switching power supply module 53 connects the negative pole of photovoltaic cells 15, with photovoltaic
The negative pole of unit 25.
The present embodiment can use the pfc circuit shown in Fig. 3, and pfc circuit includes: Inrush current restraining electricity
Road, full-wave rectification bridge, filter circuit, choke induction L1, PFC integrated package, field effect transistor, output
Filtering and feedback network and the network that is made up of several resistance, electric capacity and diode.This pfc circuit
220V/50Hz alternating voltage is become D/C voltage, and its line input power factor is close to 1.Bridge-type
Control circuit is received in the output of rectification circuit at X6, transformed after provide 12VDC voltage for it.Warp
Filtered DC voltage receives choke induction L1, this inductance together with Q1 and filter capacitor C1
Line input power factor brings up to close to 1.
The operation principle of the electric power system that the photovoltaic of the present embodiment and communication power supply are applied in combination is: work as luminous energy
Normal and when maintaining 300 seconds, intelligent control module sends signal, switch-off power factor school to rectification circuit
Positive circuit, now, photovoltaic generation voltage U2 is affected by luminous energy power to fluctuate within the specific limits, begins
Powered to described communication equipment by photovoltaic generating module eventually.
When luminous energy exception, such as a pile black clouds, when U2 drops into less than 2/3, Based Intelligent Control of wafting in the air
Module sends signal to commercial power rectification module, opens power factor correction circuit, system by civil power to described
Communication equipment is powered；Meanwhile, after black clouds, photovoltaic voltage U2 returns in certain scope, passes through
After time delay, switch-off power factor correction circuit, U2 provides communication equipment described in whole communication equipments.
When luminous energy persistent anomaly, photovoltaic generation U2 is in spendable critical point for a long time, and photovoltaic is sent out
The general power of electricity can not meet described power of communication equipment when requiring, the battery being in floating charge state is automatic
Compensate the power of photovoltaic shortcoming.When accumulator capacity is discharged to the 60% of rated capacity, Based Intelligent Control mould
Block sends signal to rectification module, opens power factor correction circuit, system by civil power to communication equipment institute
State the capacity that communication equipment is powered and supplemented battery.
Embodiment 2
Certain communication base station room, direct current 48V system, communication equipment 43 electric current described in communication equipment takes 80A,
Batteries 41 charging current takes 20A, system maximum current 100A.It is that a combination supplies with a frame
Electricity system, upper rack installation alternating current-direct current distribution and high frequency switch power part, bottom installation batteries,
Battery is composed in series by 16 ferric phosphate lithium cells.System configures: an intelligent control module 45,
Three 48V/50A high-frequency switching power supply modules.Isolating diode 31,32,33 may be mounted at high frequency
Inside switch power module, it is also possible to be arranged on the machine frame of module-external.
The electric power system that the photovoltaic of the present invention and communication power supply are applied in combination photovoltaic generating module include to
Few one group of photovoltaic module being connected in parallel.
Preferably, described photovoltaic module configures two groups, and often group is composed in series by five photovoltaic cells, every
Unit is 72V/450W, and general power is 4.5KW.
Preferably, described photovoltaic module includes at least five photovoltaic cells being connected in series.Photovoltaic cells is used
In producing photovoltaic effect.
Preferably, the voltage of described every photovoltaic cells is 72V, and power is 450W.
Preferably, photovoltaic cells 11 is connected in series photovoltaic cells 12, and photovoltaic cells 12 is connected in series photovoltaic
Unit 13, photovoltaic cells 13 is connected in series photovoltaic cells 14, and photovoltaic cells 14 is connected in series photovoltaic cells
15。
Preferably, photovoltaic cells 21 is connected in series photovoltaic cells 22, and photovoltaic cells 22 is connected in series photovoltaic
Unit 23, photovoltaic cells 23 is connected in series photovoltaic cells 24, and photovoltaic cells 24 is connected in series photovoltaic cells
25。
Preferably, photovoltaic cells 11 connects the positive pole of isolating diode 31, the negative pole of isolating diode 31
Connecting the a1 end of high-frequency switching power supply module 51, the positive pole of isolating diode 31 connects photovoltaic cells 11
Positive pole, the negative pole of photovoltaic cells 11 connects the positive pole of photovoltaic cells 12, and the negative pole of photovoltaic cells 12 is even
Connecing the positive pole of photovoltaic cells 13, the negative pole of photovoltaic cells 13 connects the positive pole of photovoltaic cells 14, photovoltaic list
The negative pole of unit 14 connects the positive pole of photovoltaic cells 15.
Preferably, the negative pole of isolating diode 32 connects the a2 end of high-frequency switching power supply module 52, isolation
The positive pole of diode 32 connects the positive pole of photovoltaic cells 11, and the negative pole of photovoltaic cells 11 connects photovoltaic cells
The positive pole of 12, the negative pole of photovoltaic cells 12 connects the positive pole of photovoltaic cells 13, bearing of photovoltaic cells 13
Pole connects the positive pole of photovoltaic cells 14, and the negative pole of photovoltaic cells 14 connects the positive pole of photovoltaic cells 15.
Preferably, the negative pole of isolating diode 33 connects the a3 end of high-frequency switching power supply module 53, isolation
The positive pole of diode 33 connects the positive pole of photovoltaic cells 11, and the negative pole of photovoltaic cells 11 connects photovoltaic cells
The positive pole of 12, the negative pole of photovoltaic cells 12 connects the positive pole of photovoltaic cells 13, bearing of photovoltaic cells 13
Pole connects the positive pole of photovoltaic cells 14, and the negative pole of photovoltaic cells 14 connects the positive pole of photovoltaic cells 15.
Preferably, the positive pole of isolating diode 31 connects the positive pole of photovoltaic cells 21, photovoltaic cells 21
Negative pole connect the positive pole of photovoltaic cells 22, the negative pole of photovoltaic cells 22 connects the positive pole of photovoltaic cells 23,
The negative pole of photovoltaic cells 23 connects the positive pole of photovoltaic cells 24, and the negative pole of photovoltaic cells 24 connects photovoltaic list
The positive pole of unit 25.
Preferably, the positive pole of isolating diode 32 connects the positive pole of photovoltaic cells 21, photovoltaic cells 21
Negative pole connect the positive pole of photovoltaic cells 22, the negative pole of photovoltaic cells 22 connects the positive pole of photovoltaic cells 23,
The negative pole of photovoltaic cells 23 connects the positive pole of photovoltaic cells 24, and the negative pole of photovoltaic cells 24 connects photovoltaic list
The positive pole of unit 25.
Preferably, the positive pole of isolating diode 33 connects the positive pole of photovoltaic cells 21, photovoltaic cells 21
Negative pole connect the positive pole of photovoltaic cells 22, the negative pole of photovoltaic cells 22 connects the positive pole of photovoltaic cells 23,
The negative pole of photovoltaic cells 23 connects the positive pole of photovoltaic cells 24, and the negative pole of photovoltaic cells 24 connects photovoltaic list
The positive pole of unit 25.
Described DC-AC-DC converting module includes three high-frequency switching power supply modules being connected in parallel,
High-frequency switching power supply module 51, high-frequency switching power supply module 52, and high-frequency switching power supply module 53 enters
Row is connected in parallel.
Preferably, the b1 end of high-frequency switching power supply module 51 connects the negative pole of photovoltaic cells 15, with photovoltaic
The negative pole of unit 25.
Preferably, the b2 end of high-frequency switching power supply module 52 connects the negative pole of photovoltaic cells 15, with photovoltaic
The negative pole of unit 25.
Preferably, the b3 end of high-frequency switching power supply module 53 connects the negative pole of photovoltaic cells 15, with photovoltaic
The negative pole of unit 25.
Fig. 4 is the another kind of embodiment of pfc circuit, and it is mainly by inductance L2, diode VD1, VD2,
Switching tube VQ1, output main line filter capacitor C14 composition.Input circuit is by filter inductance L1, filtering
Electric capacity C1, rectifier bridge B1, piezo-resistance R4, thermistor R1 form.L11 and C3 constitutes filtering
Network.Control circuit is made up of TDA16888 and outer member thereof, and peripheral circuit includes: current detecting
Circuit is made up of R9, and input voltage sample circuit is made up of R6, R7, output voltage feedback circuit by
R17, R18, R19 and R20 form, backfeed loop is PI controller, Voltage loop PI controller by
C9, C10, R24 form, and electric current loop PI controller is made up of C6, C7, R22.Controller works
Frequency is determined by resistance R26, and R26 value is the biggest, then its operating frequency is the least, R26 value 51k Ω,
Operating frequency is 100kHz.
When luminous energy is normal and maintains 400 seconds, then intelligent control module sends signal to rectification module, closes
Disconnected pfc circuit, now photovoltaic generation voltage U2 is affected by luminous energy power and is fluctuated within the specific limits,
Still described second direct current is exported by photovoltaic generating module to described DC-AC-DC converting module,
And supplied described 3rd direct current by described DC-AC-DC converting module to described communication equipment, mend
Fill the capacity of described batteries.
When luminous energy exception, such as a pile black clouds, when U2 drops into less than 2/3, Based Intelligent Control of wafting in the air
Module sends signal to rectification circuit, opens pfc circuit, system by civil power to described DC-AC-straight
Stream conversion module exports described first direct current, and by described DC-AC-DC converting module to described
Communication equipment supplies described 3rd direct current, supplements the capacity of described batteries.In like manner, after black clouds,
When luminous energy returns to some strength, U2 returns in normal range (NR), turns off PFC after time delay, by
Civil power exports described second direct current to described DC-AC-DC converting module, and by described direct current-friendship
Stream-DC converting module supplies described 3rd direct current to described communication equipment, supplements described batteries
Capacity.
The invention have the benefit that
First, ensure safety power supply, commercial power rectification module, photovoltaic generating module, DC-AC-direct current
Conversion module is attached with intelligent control module respectively, and conversion module, by intelligent control module control, makes
Obtain photovoltaic power supply system and can share a set of translation circuit with mains-supplied system, and isolating diode is also
The safety realizing power supply can be ensured.
Second, cut operating costs, overlap with photovoltaic generating system two compared to traditional power supply system for communications
The mode of system independent operating, it is possible to the most energy-conservation, save land, material-saving, and reduce running cost,
Reduce energy consumption, decrease equipment investment and occupy the space that machine room is valuable, and alleviate and safeguard work
Measure.
Described above illustrate and describes some preferred embodiments of the application, but as previously mentioned, it should reason
Solve the application and be not limited to form disclosed herein, be not to be taken as the eliminating to other embodiments,
And can be used for various other combination, amendment and environment, and can in application contemplated scope described herein,
It is modified by above-mentioned teaching or the technology of association area or knowledge.And those skilled in the art are carried out changes
Move and change is without departing from spirit and scope, the most all should be in the protection of the application claims
In the range of.
Claims (7)
1. the electric power system that photovoltaic and communication power supply are applied in combination, this electric power system and communication equipment phase
Connecting, this electric power system includes batteries, it is characterised in that also include: commercial power rectification module, light
Volt electricity generation module, DC-AC-DC converting module and intelligent control module, wherein,
Described commercial power rectification module, for mains electricity being changed into the first direct current that voltage is U1,
Receive the switch controlling signal of described intelligent control module, control described first direct current output the most described directly
Stream-AC-DC converter module；
Described photovoltaic generating module, for converting light energy into the second direct current that voltage is U2, described
Voltage U2 is more than voltage U1, meanwhile, receives the switch controlling signal of described intelligent control module, controls
Described second DC power transmission to isolating diode, by described isolating diode output to described direct current-
AC-DC converter module；
Described DC-AC-DC converting module, for receiving the first of described commercial power rectification module output
Direct current or the second direct current of described photovoltaic generating module output, and be converted to alternating current, then by this friendship
Stream electricity is transformed to be sent to the 3rd direct current of described communication equipment；
Described intelligent control module, when luminous energy maintains more than 300 seconds, to described commercial power rectification mould
Block sends cut-off signals, closes described commercial power rectification module defeated to described DC-AC-DC converting module
Described first direct current gone out, and close and set to described communication by described DC-AC-DC converting module
Described 3rd direct current that available is given；Simultaneously by described photovoltaic generating module to described DC-AC-direct current
Conversion module exports described second direct current, and by described DC-AC-DC converting module to described logical
Letter equipment supplies described 3rd direct current, supplements the capacity of described batteries；
When described voltage U2 drops to the first setting value, to described commercial power rectification, module sends unlatching signal,
Described first direct current is exported to described DC-AC-DC converting module by described commercial power rectification module,
Supplied described 3rd direct current by described DC-AC-DC converting module to described communication equipment, supplement
The capacity of described batteries；
When described batteries is discharged to the second setting value, to described commercial power rectification, module sends unlatching signal,
Described first direct current is exported to described DC-AC-DC converting module by described commercial power rectification module,
Supplied described 3rd direct current by described DC-AC-DC converting module to described communication equipment, supplement
The capacity of described batteries；
Described first setting value is the 2/3 of U2 rated voltage；Described second setting value is described batteries
The 60% of rated capacity.
The electric power system that the most according to claim 1, photovoltaic and communication power supply are applied in combination, its feature exists
In: described commercial power rectification module is made up of rectification circuit, filter circuit and power factor correction circuit.
The electric power system that the most according to claim 2, photovoltaic and communication power supply are applied in combination, its feature exists
In: described photovoltaic generating module, the photovoltaic module being connected in parallel including at least two groups.
The electric power system that the most according to claim 3, photovoltaic and communication power supply are applied in combination, its feature exists
In, the described photovoltaic module often organized, including at least five photovoltaic cells being connected in series.
The electric power system that the most according to claim 1, photovoltaic and communication power supply are applied in combination, its feature exists
In: described DC-AC-DC converting module, including at least three high frequency switch powers being connected in parallel
Module.
The electric power system that the most according to claim 1, photovoltaic and communication power supply are applied in combination, its feature exists
In: described batteries, at least ten six ferric phosphate lithium cells or lead-acid battery it is composed in series.
The electric power system that the most according to claim 1, photovoltaic and communication power supply are applied in combination, its feature exists
In: described intelligent control module, is microprocessor further.
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| CN104810913A (en) * | 2015-05-22 | 2015-07-29 | 蚌埠市徽泰电气自动化有限公司 | Photovoltaic power generation device based on commercial power compensation and water pump system of photovoltaic power generation device |
| CN105356582A (en) * | 2015-11-30 | 2016-02-24 | 南开大学 | Remotely controlled photovoltaic multi-output power supply |
| CN106026355A (en) * | 2016-05-30 | 2016-10-12 | 河南昊方通信工程技术有限公司 | Direct current power supply system for communication |
| CN106549476B (en) * | 2016-12-09 | 2019-09-20 | 国网北京市电力公司 | Communication power supply DC power-supply system |
| CN107317379A (en) * | 2017-08-22 | 2017-11-03 | 上海点贸信息技术有限公司 | A kind of battery charging module |
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| CN202004521U (en) * | 2011-03-28 | 2011-10-05 | 上海易菲雅信息科技服务有限公司 | Solar photovoltaic power supply and mains supply parallel system |
| CN102487252A (en) * | 2010-12-01 | 2012-06-06 | 中兴通讯股份有限公司 | Solar-energy photovoltaic panel output processing apparatus and method thereof, and communication power supply |
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| CN102487252A (en) * | 2010-12-01 | 2012-06-06 | 中兴通讯股份有限公司 | Solar-energy photovoltaic panel output processing apparatus and method thereof, and communication power supply |
| CN202004521U (en) * | 2011-03-28 | 2011-10-05 | 上海易菲雅信息科技服务有限公司 | Solar photovoltaic power supply and mains supply parallel system |
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