CN207353896U - A kind of intelligence energy-storage battery charge and discharge device - Google Patents
A kind of intelligence energy-storage battery charge and discharge device Download PDFInfo
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- CN207353896U CN207353896U CN201720910831.1U CN201720910831U CN207353896U CN 207353896 U CN207353896 U CN 207353896U CN 201720910831 U CN201720910831 U CN 201720910831U CN 207353896 U CN207353896 U CN 207353896U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 72
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- 230000002123 temporal effect Effects 0.000 claims 1
- 238000009825 accumulation Methods 0.000 abstract description 5
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- 230000007774 longterm Effects 0.000 abstract description 5
- 230000009897 systematic effect Effects 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
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- 238000012545 processing Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of intelligent energy-storage battery charge and discharge device, including double Buck circuits, under being controlled in intelligent controller, the DC supply input formed after alternating current Transformer Rectifier that takes turns to operate and make under charge mode charges the energy-storage battery to energy-storage battery；Double Buck Boost circuits, are connected with the energy-storage battery, under being controlled in intelligent controller, take turns to operate under discharge mode, by the electrical energy transportation of storage energy battery to load.While the utility model realizes energy battery charging and discharging control, due to forming redundancy using double Buck circuits and double Buck Boost circuits, internal heat accumulation when avoiding single circuit long-term continuous firing and caused by systematic jitters, after one of circuit is surprisingly failing, another circuit can continue to run with, and substantially increase the reliability of system.
Description
Technical field
It the utility model is related to energy-storage battery technical field, and in particular to a kind of intelligence energy-storage battery charge and discharge device.
Background technology
Exhaustion with traditional energy and the continuous improvement to environmental protection requirement, electric energy etc. are renewable, free of contamination new
The positive accelerated development of the energy.And electric energy is stored among energy-storage battery extensively, energy-storage battery also extensively using in all fields, such as
Electric automobile, lighting system and handheld mobile device etc..
Currently, a part of the energy-storage battery charge and discharge device as battery management system, it is seldom individually designed, rely on mostly
In complicated system, including control system, CAN bus, the complex modules of voltage acquisition and host computer.Battery management system is applicable in
In more complicated power supply or energy-storage system, without it is convenient simple the features such as and price costly.Easy energy-storage battery fills
Discharge control device, fails to realize immediately monitoring, the function such as processing and instant alarming, and there is certain safety is hidden immediately
Suffer from.Common energy-storage battery charge and discharge device uses voltage comparator as nucleus module, by the voltage for comparing energy-storage battery
It to reach the disconnection of control charge-discharge circuit and closure, can only charge to specific battery, specific load is put
Electricity.
Utility model content
The purpose of this utility model is to be directed to technological deficiency existing in the prior art, and provides a kind of intelligent energy-storage battery
Charge and discharge device, it coordinates current sensor and microcontroller by using double Buck circuits and double Buck-Boost circuits
430F149, so as to fulfill the discharge and recharge to energy-storage battery, and can carry out the voltage and current under charge mode or discharge mode real
When show.
Technical solution is used by realize the purpose of this utility model：
A kind of intelligence energy-storage battery charge and discharge device, including
Double Buck circuits, under being controlled in intelligent controller, take turns to operate under charge mode and make alternating current transformation
The DC supply input formed after rectification charges the energy-storage battery to energy-storage battery；
Double Buck-Boost circuits, are connected with the energy-storage battery, under being controlled in intelligent controller, in electric discharge mould
Take turns to operate under formula, by the electrical energy transportation of storage energy battery to load.
Double Buck circuits and double Buck-Boost circuits respectively by the drive circuit that charges, electric discharge drive circuit with
The intelligent controller is connected, and the intelligent controller is by exporting the double Buck circuits of PWM controls, double Buck-Boost circuits
Output voltage values, charge for energy-storage battery, or are discharged by energy-storage battery and provide operating voltage for load.
The intelligent controller connects voltage and current acquisition module, including：
First voltage current acquisition unit, during under charge mode, gathers the electricity of the electric current input side of double Buck circuits
Piezoelectricity flow valuve；
Second voltage current acquisition unit, during under charge mode, gathers the electricity of the electric current outlet side of double Buck circuits
Piezoelectricity flow valuve, or when under discharge mode, the voltage and current value of collection energy-storage battery electric current output；
Tertiary voltage current acquisition unit, during under discharge mode, gathers the electric current output of double Buck-Boost circuits
The voltage and current value of side.
The voltage and current acquisition module includes ACS712 sensors.
The intelligent controller is also connected with display module, the voltage of the discharge and recharge current for real-time display, electric current and when
Between information.
Intelligent controller connection key-press module is stated, for selecting setting charge mode, electric discharge operating mode and filling
Discharge voltage value.
The charging drive circuit, electric discharge drive circuit include two optocouplers, four optocouplers and the intelligence respectively
The PWM output terminals connection of controller, and respectively by the PWM ends of optocoupler and double Buck circuits, double Buck-Boost circuits four
A metal-oxide-semiconductor connection.
The utility model can be realized specified to different types of energy-storage battery or same type difference by Buck circuits
The energy-storage battery of magnitude of voltage charges, and realizes that same energy-storage battery puts different loads by Buck-Boost circuits
Electricity.
Buck and Buck-Boost circuits are combined by the utility model with intelligent controller, are made one and are completely closed
Loop system, the shortcomings that eliminating simple energy-storage battery charge and discharge device open cycle system, has higher stability；With complicated electricity
Management system is compared, and the utility model only focuses on the discharge and recharge to energy-storage battery, therefore element usage quantity greatly reduces, whole
Body cost also greatly reduces.
In addition, redundancy is formed in structure, is kept away using double Buck circuits and double Buck-Boost circuits in the utility model
Exempt from internal heat accumulation during single circuit long-term continuous firing and caused by systematic jitters, when one of circuit is in accident
After failure, another circuit can continue to run with, and substantially increase the reliability of system.
The utility model, which can be realized, charges the energy-storage battery of a variety of different types or different load voltage values,
It can realize that the load different to load voltage value of same energy-storage battery is discharged.
Brief description of the drawings
Fig. 1 is the principle schematic of intelligent energy-storage battery charge and discharge device；
Fig. 2 is the circuit diagram of drive circuit；
Fig. 3-5 is the circuit diagram of device power supply circuit respectively；
Fig. 6 is the circuit diagram of double Buck circuits；
Fig. 7 is the circuit diagram of Buck-Boost circuits；
Fig. 8 is the circuit diagram of voltage conversion rectification；
Fig. 9 is the circuit diagram of key-press module；
Figure 10 is the control flow chart of intelligent energy-storage battery charge and discharge device.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place
The specific embodiment of description only to explain the utility model, is not used to limit the utility model.
Referring to shown in Fig. 1-10, a kind of intelligence energy-storage battery charge and discharge device, including：
Double Buck circuits, under being controlled in intelligent controller, pass through this pair of Buck circuit work in turn under charge mode
The DC supply input for making and making to be formed after alternating current Transformer Rectifier charges the energy-storage battery to energy-storage battery；
Double Buck-Boost circuits, are connected with the energy-storage battery, under intelligent controller control, putting
Taken turns to operate under power mode by this pair of Buck-Boost circuit, by the electrical energy transportation of the storage energy battery to load.
The utility model by double Buck circuits and double Buck-Boost circuits under the control of intelligent controller, in turn
Work alternatively, realize charging to energy-storage battery or discharged by energy-storage battery and to load supplying, double Buck circuits and
Double Buck-Boost circuits form redundancy in structure, avoid internal heat accumulation during single circuit long-term continuous firing and cause
Systematic jitters, when one of circuit surprisingly fail after, another circuit can continue to run with.
Wherein, the intelligent controller is the 430F149 of TI companies, and such controller has good AD conversion and PWM
Output work, and there is low-power consumption characteristic.
Specifically, double Buck circuits and double Buck-Boost circuits pass through the drive circuit that charges (driving electricity respectively
Road one), electric discharge drive circuit (drive circuit two) be connected with the intelligent controller, output is passed through by the intelligent controller
PWM is charged, or put by energy-storage battery with controlling double Buck circuits, double Buck-Boost circuit output voltages values for energy-storage battery
Electricity and for load operating voltage is provided.
Wherein, in order to achieve effective control output voltage values, the intelligent controller connects voltage and current acquisition module, bag
Include：
First voltage current acquisition unit, during under charge mode, gathers the electricity of the electric current input side of double Buck circuits
Piezoelectricity flow valuve；
Second voltage current acquisition unit, during under charge mode, gathers the electricity of the electric current outlet side of double Buck circuits
Piezoelectricity flow valuve, or when under discharge mode, the voltage and current value of collection energy-storage battery electric current output；
Tertiary voltage current acquisition unit, during under discharge mode, gathers the electric current output of double Buck-Boost circuits
The voltage and current value of side.
Specifically, the voltage and current acquisition module uses ACS712 sensors, positive and negative 30 peace electric current can be measured, it is corresponding
Analog output 66mV/A.The voltage and current value of collection is transported to intelligent controller respectively, by the intelligent controller according to
The output voltage values of setting export corresponding PWM and the output voltage of double Buck circuits, double Buck-Boost circuits are controlled
System, charges for energy-storage battery, or provides operating voltage to be discharged by energy-storage battery for load.
Further, the intelligent controller is also connected with display module, the voltage of the discharge and recharge current for real-time display,
The information such as electric current and time.The display module can use LCD1602.
In order to realize the setting to carrying out operating mode by intelligent controller, the intelligent controller connects button mould
Block, operating mode, i.e. energy-storage battery charge mode and energy-storage battery discharge mode and charging/discharging voltage value are set for keying in.
Specifically, the key-press module includes three buttons S3, S4, S5, resistance R6, R7, a R8 are connected respectively, is connected in parallel；And
Join one end ground connection GND, another termination 3.3V voltage ends, realize respectively energy-storage battery charge mode and energy-storage battery discharge mode with
And charging/discharging voltage value selection setting.
Specifically, double Buck circuits include two Buck circuits being arranged in parallel, shown in Figure 6, double Buck electricity
Road includes double metal-oxide-semiconductors (Q2, Q4), using IRF540, double inductance (L12, L14), MOS capacitances (C18, C20) and four afterflows two
Pole pipe (D3, D5, D6, D7), respectively connection form two Buck circuits, and diode therein is used to prevent electric current from reversely flowing into,
Inductance and capacitance constitute a low-pass filter.When metal-oxide-semiconductor is on-state, input terminal forms current channel through metal-oxide-semiconductor and inductance,
Inductance, diode reverse biased are supplied energy to, inductive current increases, and load current is provided by the energy stored on capacitor.
When metal-oxide-semiconductor disconnects, the self-induced e.m.f in inductance makes diode current flow, is stored in the energy in inductance through diode
Capacitance is passed to, load is output to by capacitance.
Double Buck circuits form redundancy in structure, avoid internal heat accumulation during single circuit long-term continuous firing and make
Into systematic jitters, when one of circuit surprisingly fail after, another circuit can continue to run with.
Output terminal buckout1, buckout2 two ACS712 modules of connection of this pair of Buck circuit, an ACS712 mould
Block is connected in parallel on circuit to detect voltage, another ACS712 block coupled in series, to detect electric current, forms second voltage electricity on circuit
Flow detection unit.Two ACS712 module OUT pins are connected with the connecting pin (P6.1, P6.2) of intelligent controller respectively, wherein
The one resistance R4 of IN1 feet connection for detecting the ACS712 modules of voltage is connected with circuit, is connected by terminals P 3 with energy-storage battery
Connect, the output terminal buckout1 with each Buck circuits, buckout2's two ACS712 modules are connected respectively, double to realize
The voltage and current value of output of the detection in real time when Buck circuits work all the way during Buck circuits, or detection storage when under discharge mode
The output voltage current value of energy battery.
It is shown in Figure 7, in the utility model, double Buck-Boost circuits, including two metal-oxide-semiconductors (Q1, Q3),
Using IRF540, wherein two inductance (L1, L3), two capacitances (C17, C19) and two diodes (D2, D4), diode master
Prevent electric current from reversely flowing into.When metal-oxide-semiconductor turns on, input voltage is isolated with output voltage, and capacitance provides energy for load.
When metal-oxide-semiconductor disconnects, the induced potential in inductance makes diode current flow, and inductance provides energy for capacitance and load.
Double Buck-Boost circuits, form redundancy in structure, internal heat when avoiding single circuit long-term continuous firing
Accumulation and caused by systematic jitters, when one of circuit surprisingly fail after, another circuit can continue to run with.
Double Buck-Boost circuits form two Buck-Boost circuit units, corresponding and double Buck circuits
Two output terminal buckout1, buckout2 are connected, and the terminals P 2 and load for passing through its output terminal out1, out2 connection connect
Connect, and powering load.
Wherein, the corresponding output terminal out1 of double Buck-Boost circuits, out2 connect two ACS712 moulds respectively
Block, forms tertiary voltage current detecting unit, detects voltage and electric current respectively, its connection mode is a parallel connection to detect electricity
Pressure, a series connection are connected, work with detecting electric current by its OUT pin foot (P6.4, P6.5) corresponding with intelligent controller
When, double Buck-Boost circuits share the tertiary voltage current detecting unit, realize detection Buck-Boost electricity all the way respectively
The voltage and current value of output when road works.
In the utility model, the input sides of double Buck circuits connection voltage conversion and rectification circuit module, for pair
Alternating current carries out voltage conversion and rectification forms direct current and supplies electricity to double Buck circuits, shown in Figure 8, can be specifically bag
Include：
Transformer T1, rectifier bridge D8, capacitance C2, transformer T1 realize that voltage conversion, rectifier bridge D8 export after carrying out rectification,
The turn ratio of transformer is 1:3,220v alternating current is converted into the direct current of 80v or so after Transformer Rectifier, its direct current
Output terminal connects the first Current Voltage collecting unit, including two ACS712 current sensor modules, and one is connected in series, and one
It is a to be connected in parallel, electric current and voltage are detected respectively, and pass through the respective foot (P6.6, P6.3) of its OUT pin and intelligent controller
It is connected, its current output terminal buckin1, buckin2 are connected with the input terminal of double Buck circuits, pass through terminals P 4 and alternating current
Connection.
In the utility model, the charging drive circuit includes two optocouplers U1, U2, and electric discharge drive circuit includes two light
Coupling U3, U4, connect 12V operating voltages respectively, and connect (such as corresponding P41.-4.4 with the respective foot of intelligent controller respectively
Foot) the PWM ends of four optocoupler U1, U2, U3, U4 distinguish four metal-oxide-semiconductors Q1, Q2, Q3, and Q4 corresponds to connection, in intelligent controller
Corresponding output PWM1, PWM2, PWM3, PWM4 give four metal-oxide-semiconductors Q1, Q2, Q3, Q4, control metal-oxide-semiconductor Q1, Q2 respectively under control,
The on off state of Q3, Q4.
In the utility model, device power supply circuit is further included, for being connected to intelligent controller and with intelligent controller
Key-press module, display module supply work electricity consumption, its exportable 12v, 3.3v, 5v, including VRA4812LD, LM1117,
LM7805, its input terminal cut current input terminal buckin1, buckout1, buckin2 by switching switch S1, changeable connection,
Buckout2, the voltage conversion circuit formed by capacitance C11, voltage conversion chip U5 (VRA4812LD) and capacitance C12, turns
Change 12V voltage outputs into and provide work electricity consumption, and the conversion electricity that 12V voltages can be formed by LM7805 chips for drive circuit
(including input lateral capacitance C1, C6, output lateral capacitance C7, C2) is converted into the VCC voltages of device on road, passes through LM1117 and capacitance
The exportable 3.3V voltages of conversion circuit that C3, C8 are formed are used for intelligent controller, display module and key-press module.
The specific workflow of the utility model is as follows.
It is energy-storage battery charge mode and energy-storage battery discharge mode to select work at present mould according to key-press module.Charging
When, transformer inputs P4 access 220v alternating currents, after step-down rectifier, are converted into the direct current of 80v or so.Switch S1 connects
Enter the direct current of 80v or so, after U5 is depressured, be converted into 12v direct currents, 3.3v direct currents, be drive circuit and intelligent control
Device etc. provides power supply.According to energy-storage battery type and required charging voltage, charging work voltage that key-press input needs at this time, intelligence
Energy controller output PWM, is delivered in metal-oxide-semiconductor after drive circuit, is energy storage electricity to control the output voltage values of Buck circuits
Charge in pond.
In for energy-storage battery charging process, 2 Buck circuits take turns to operate, the collection of first voltage current acquisition unit
The voltage and electric current of Buck circuit input ends, the voltage and electricity of second voltage current acquisition unit collection Buck circuit output ends
Stream, the real-time voltage and electric current of display module display collection.
If first voltage current acquisition unit or the data exception of second voltage current acquisition unit collection, microcontroller MSP1
Stop PWM outputs, stop charging, play a protective role to circuit.If energy-storage battery charge by saturation, stopping, display module
Show " completion ".
Under energy-storage battery discharge mode, the direct current of switch S1 accesses 80v or so, after U5 is depressured, it is straight to be converted into 12v
Galvanic electricity, 3.3v direct currents, are that drive circuit and intelligent controller etc. provide power supply.It is defeated according to load normal working voltage, button
Enter to need charging work voltage at this time, intelligent controller output PWM, is delivered in metal-oxide-semiconductor after drive circuit, with control
The output voltage values of Buck-Boost circuits, operating voltage is provided for load.In energy-storage battery discharge process, 2 Buck-
Boost circuit takes turns to operate, the voltage and electric current that second voltage current acquisition unit collection energy-storage battery is exported, tertiary voltage
Current acquisition unit gather Buck-Boost circuit output ends voltage and electric current, display module display collection real-time voltage and
Electric current.
If second voltage current acquisition unit or the data exception of tertiary voltage current acquisition unit collection, stop putting immediately
Electricity, i.e. intelligent controller stop PWM outputs, realize the self-protection function of electric discharge, realize and fortuitous event occur and be automatically stopped
Work.
In addition, the utility model can also realize the constant-current discharge of energy-storage battery, so that load works normally.
Specifically, when to the voltage and current data processing of collection, using filtering out mutation value, at the multinomial method for taking average
Reason.N group data are such as read, every group of m data, every group is averaged respectively, a data that absolute deviation values in each group are larger
Cast out, retain the less m-a data of deviation, n groups common n* (m-a) a data, this n* (m-a) a data is asked for again
Average value, end value are used for the data value of intelligent control for intelligent controller, and n, m, a is natural number.
When adjusting PWM duty cycle, it can set and compare threshold value, threshold value difference upper threshold value and lower threshold value will be compared, with control
The adjusting step value of PWM, such as when the value of feedback and the difference of the charging voltage value of setting of actual charging voltage are more than upper threshold value,
The adjusting step value of PWM duty cycle is the first ratio value, when value of feedback and the charging voltage value of setting of actual charging voltage
Difference is less than upper threshold value and is more than lower threshold value, and the adjusting step value of PWM duty cycle is the second ratio value, when actual charging voltage
Value of feedback and the difference of the charging voltage value of setting are less than lower threshold value, and the adjusting step value of PWM duty cycle is the 3rd ratio value.
It is respectively 2v and 0.2v that upper threshold value, which is such as set, with lower threshold value.When the difference of actual feedback and setting value is more than 2v
When, the adjusting step value of PWM duty cycle is 10%, is more than 0.2v when the difference of actual feedback and setting value is less than 2v,
The adjusting step value of PWM duty cycle is 1%, when the difference of actual feedback and setting value is less than 0.2v, the adjusting of PWM duty cycle
Step value is 0.1%.
The above is only the preferred embodiment of the utility model, it is noted that for the general of the art
For logical technical staff, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these change
The scope of protection of the utility model is also should be regarded as into retouching.
Claims (7)
- A kind of 1. intelligence energy-storage battery charge and discharge device, it is characterised in that including：Double Buck circuits, under being controlled in intelligent controller, take turns to operate under charge mode and make alternating current Transformer Rectifier The DC supply input formed afterwards charges the energy-storage battery to energy-storage battery；Double Buck-Boost circuits, are connected with the energy-storage battery, under being controlled in intelligent controller, under discharge mode Take turns to operate, by the electrical energy transportation of storage energy battery to load.
- 2. intelligent energy-storage battery charge and discharge device according to claim 1, it is characterised in that double Buck circuits and double Buck-Boost circuits are connected by the drive circuit that charges, electric discharge drive circuit with the intelligent controller respectively, the intelligence Energy controller is that energy-storage battery charges by exporting the double Buck circuits of PWM controls, double Buck-Boost circuit output voltages values, Or discharged by energy-storage battery and provide operating voltage for load.
- 3. intelligent energy-storage battery charge and discharge device according to claim 1, it is characterised in that the intelligent controller connection electricity Current voltage acquisition module, including：First voltage current acquisition unit, during under charge mode, gathers the voltage electricity of the electric current input side of double Buck circuits Flow valuve；Second voltage current acquisition unit, during under charge mode, gathers the voltage electricity of the electric current outlet side of double Buck circuits Flow valuve, or when under discharge mode, the voltage and current value of collection energy-storage battery electric current output；Tertiary voltage current acquisition unit, during under discharge mode, gathers the electric current outlet side of double Buck-Boost circuits Voltage and current value.
- 4. intelligent energy-storage battery charge and discharge device according to claim 3, it is characterised in that the voltage and current acquisition module Including ACS712 sensors.
- 5. intelligent energy-storage battery charge and discharge device according to claim 1, it is characterised in that the intelligent controller is also connected with Display module, voltage, electric current and the temporal information of the discharge and recharge current for real-time display.
- 6. intelligent energy-storage battery charge and discharge device according to claim 1, it is characterised in that the intelligent controller connection is pressed Key module, for selecting setting charge mode, electric discharge operating mode and charging/discharging voltage value.
- 7. intelligent energy-storage battery charge and discharge device according to claim 2, it is characterised in that the charging drive circuit, put Electric drive circuit includes two optocouplers respectively, and four optocouplers are connected with the PWM output terminals of the intelligent controller, and respectively It is connected by the PWM ends of optocoupler with four metal-oxide-semiconductors of double Buck circuits, double Buck-Boost circuits.
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| CN201720910831.1U CN207353896U (en) | 2017-07-26 | 2017-07-26 | A kind of intelligence energy-storage battery charge and discharge device |
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| CN201720910831.1U CN207353896U (en) | 2017-07-26 | 2017-07-26 | A kind of intelligence energy-storage battery charge and discharge device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196398A (en) * | 2017-07-26 | 2017-09-22 | 天津科技大学 | A kind of intelligent energy-storage battery charge and discharge device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107196398A (en) * | 2017-07-26 | 2017-09-22 | 天津科技大学 | A kind of intelligent energy-storage battery charge and discharge device |
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Granted publication date: 20180511 |