CN109962518A - A kind of locomotive storage batteries status monitoring and intelligence control system - Google Patents
A kind of locomotive storage batteries status monitoring and intelligence control system Download PDFInfo
- Publication number
- CN109962518A CN109962518A CN201711435615.7A CN201711435615A CN109962518A CN 109962518 A CN109962518 A CN 109962518A CN 201711435615 A CN201711435615 A CN 201711435615A CN 109962518 A CN109962518 A CN 109962518A
- Authority
- CN
- China
- Prior art keywords
- battery
- avr
- control circuit
- charge
- charging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003137 locomotive effect Effects 0.000 title claims abstract description 14
- 238000003860 storage Methods 0.000 title claims abstract description 11
- 238000012544 monitoring process Methods 0.000 title claims abstract description 10
- 238000001514 detection method Methods 0.000 claims description 34
- 238000004891 communication Methods 0.000 claims description 17
- 230000009466 transformation Effects 0.000 claims description 16
- 239000004065 semiconductor Substances 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 19
- 230000008569 process Effects 0.000 abstract description 14
- 238000007599 discharging Methods 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 9
- 230000005669 field effect Effects 0.000 description 10
- 238000005070 sampling Methods 0.000 description 10
- 230000005611 electricity Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005272 metallurgy Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241001125929 Trisopterus luscus Species 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/0071—Regulation of charging or discharging current or voltage with a programmable schedule
-
- H02J7/027—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
-
- H02J2007/10—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
-
- H02J7/045—
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of locomotive storage batteries status monitoring disclosed by the invention and intelligence control system; it is core and PWM commutation inversion technology based on 32 AVR UC3 microcontrollers; it is made of inverse-excitation type switch power-supply and AVR micro controller unit; the alternating current of exchange input is converted to low-voltage DC to charge the battery by inverse-excitation type switch power-supply; AVR micro controller unit is managed collectively battery charge and discharge process using PWM pulse modulation technology, realizes the function that data acquisition and procession, accumulator cell charging and discharging control drive with reverse-connection protection circuit and fet gate；It is acquired, analyzed, handled by the variation to voltage, current temperature in battery charging process, the rationally progress of work of control battery, to guarantee and improve the service life cycle of battery, the system real time can be good, it is reliable for operation, good solution is provided for battery service and management.
Description
Technical field
The present invention relates to locomotive storage batteries technical field, in particular to a kind of locomotive storage batteries status monitoring and intelligent control
System.
Background technique
As metallurgy industry removes the propulsion of production capacity process, the locomotive function that the railway transportation department of metallurgy industry factories and miness uses
It can become increasingly complex, reliability and availability requirement are constantly increased, and wherein machine car battery group is the key of railway locomotive
One of component, traditional battery charge and discharge device largely use silicon controlled rectifier, this is a kind of nonlinear-load, can generate
Frequency is the harmonic wave of the integral multiple of work frequency.Harmfulness Caused by Harmonics is extremely serious, it will be greatly reduced the production, transmission and benefit of electric energy
With efficiency, device of overheating of electrical, generation vibration and noise, insulation ag(e)ing is made to shorten the working life, or even breaks down or burn
It ruins.In addition, during traditional accumulator product dispatches from the factory degradation and when battery working service, mostly using power electricity
The load of subject battery product is served as in the load of the energy consumption types such as resistance, water resistance.Although it is simple that these energy consumption types load working principle, valence
Lattice are relatively low, but in use there are energy consumption during degradation is big, and test condition setting adjusts cumbersome, test data
The disadvantages of inaccuracy, the test result analysis time is long.Traditional accumulator cell charging and discharging control device, which largely uses, compares low side
Control chip, such as 51 series monolithics, have a single function, speed is slow, in data processing have inborn disadvantage, in upper bottom
In the system of machine, the communication mode supported is unable to satisfy the requirement of high speed acquisition system.But it is gone with metallurgy industry
The propulsion of production capacity process, the requirement that labor productivity improves in iron and steel enterprise constantly increase, and along with embedded technology
Development and data-handling capacity continuous promotion, the requirement to accumulator cell charging and discharging control device is higher and higher.Therefore, it is necessary to
A kind of technical solution solves the deficiency of existing issue.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of locomotive storage batteries status monitoring and intelligent control system
System is core and PWM commutation inversion technology based on 32 AVR UC3 microcontrollers, by voltage in battery operation
Variation with electric current is analyzed, and the charging process of battery is rationally controlled, and is provided for battery service and management good
Solution.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
A kind of locomotive storage batteries status monitoring and intelligence control system, by inverse-excitation type switch power-supply and AVR microcontroller list
Member forms, the inverse-excitation type switch power-supply is converted including exchange input, EMI filtering, AC/DC, high frequency transformer DC/DC is converted,
Direct current output, TL431+LTV817 loop compensation, current mode controller UC3843, switch power metal-oxide-semiconductor, the AVR micro-control
Device unit processed include charging control circuit PMOS tube, battery, charge/discharge control circuit NMOS tube, DC load, terminal voltage detecting,
Temperature detection, charging current detection, 32 AVR UC3 microcontrollers, discharge current detection, key-press input, status display, alarm
Prompt, CAN data communication, pwm driver；
The exchange input, EMI filtering, AC/DC transformation, high frequency transformer DC/DC transformation, direct current output, charge control
Circuit PMOS tube, battery, charge/discharge control circuit NMOS tube, DC load are sequentially electrically connected, the direct current output, TL431+
LTV817 loop compensation, current mode controller UC3843, switch power metal-oxide-semiconductor, high frequency transformer DC/DC transformation are sequentially electrical
Connection, the battery are electrically connected with terminal voltage detecting, temperature detection, charging current detection, discharge current detection respectively, institute
State 32 AVR UC3 microcontrollers respectively with terminal voltage detecting, temperature detection, charging current detection, discharge current detection, key
Input, status display, warning note, CAN data communication, pwm driver be electrically connected, the pwm driver respectively with charging
Control circuit PMOS tube, charge/discharge control circuit NMOS tube are electrically connected.
The alternating current of exchange input is converted to low-voltage DC to charge the battery by the inverse-excitation type switch power-supply, is had
Body design objective is as follows: industrial frequency AC inputs AC 220 (1 ± 20%) V；Direct current output 18V/10A and 10V/0.6；Switching frequency
FS=65kHz, output power Pout=180W, working efficiency η >=85%, maximum duty cycle Dmax=0.45, electric current continuous type
Operating mode CCM；
The EMI filtering can effectively filter out common mode and DM EMI in exchange input, and the AC/DC transformation is to pass through
A kind of alternating voltage is converted into the converter of another DC voltage by ac input circuit, rectification circuit and switching device,
The high frequency transformer DC/DC transformation is that AC/DC transformation is converted into the codomain model that DC voltage is converted to system service requirement
In enclosing, furthermore input power will be adjusted and be controlled, the direct current output will be converted by high frequency transformer DC/DC
Direct current is changed into the direct current electricity output of two-way DC low-voltage, connects TL431+LTV817 loop compensation all the way and enters loop benefit
Circuit is repaid, another way connection charging control circuit PMOS tube enters AVR micro controller unit；
The TL431+LTV817 loop compensation is constituted outer using controllable accurate source of stable pressure TL431 and linear optical coupling LTV817
The loop compensation of portion's error amplifier composition adjusts fixed frequency current-mode using the output error of Switching Power Supply as feedback signal
Formula controller UC3843 exports the duty ratio of PWM, realizes Switching Power Supply pressure stabilizing output, the current mode controller UC3843 tool
There is fine-tuning oscillator, can be carried out accurate duty ratio control, high-gain error amplifier, current sampling comparator and big electricity
Flow graph rises pillar output, is the ideal component of driving switch power MOS pipe turn-on deadline, ensure that the stabilization of system response time
Property and rapidity.
The AVR micro controller unit carries out unified pipe to battery charge and discharge process using PWM pulse modulation technology
Reason realizes the function that data acquisition and procession, accumulator cell charging and discharging control drive with reverse-connection protection circuit and fet gate
Can, 32 AVR UC3 microcontroller selects the microcontroller chip of ATUC256L4U；
The battery holds voltage to change between 10.5V~14.0V during the work time, 32 AVR UC3 microcontrollers
Device AD conversion reference voltage be 5V, it is therefore desirable to sampled signal is linearly improved, the present invention use resistance value for 400k Ω with
100k Ω, the resistance that precision is 1% carry out partial pressure sampling, divide coefficient k=0.2；
The terminal voltage detecting of the battery selects voltage transformer pt and charging current detection, discharge current detection
It selects Current Transmit detection charging, discharge current data to acquire and synchronize integration and gives 32 in the form of fiber optic communication
AVR UC3 microcontroller, the temperature detection select temperature sensor Pt100 resistance to detect the acquisition of battery temp data simultaneously
It synchronizes integration and gives 32 AVR UC3 microcontrollers in the form of fiber optic communication；
Since the output of voltage transformer pt, Current Transmit, temperature sensor is there are 2.5V direct current biasing, to eliminate
Bias voltage reduces by 32 AVR UC3 microcontroller conversions and calculates the time, construct difference channel using LM358, obtains practical
Electric current conversion voltage carry out AD sampling；The presence of circuit noise and external interference to be mixed with various make an uproar in AD sampled signal
Sound, to improve sampled signal signal-to-noise ratio, the present invention devises passband cutoff frequency using Butterworth LPF design method
Rate is 100Hz, and stopband cutoff frequency is 500Hz, and the second order active low-pass filter that output gain is 1 is filtered place to signal
Reason.
To realize that sampling with high precision and vector calculate, 32 AVR UC3 microcontroller is sampled using DC synchronous
Technology is sampled with the rate of 10kHz, while calculating real-time frequency by instantaneous frequency track algorithm, and then change sampling
It is spaced and is sampled, to realize that DC synchronous samples；Sampled signal enters 32 AVR UC3 microcontrollers and by 32
AVR UC3 microcontroller completes data processing within the extremely short period, and sends data to CAN data communication；
32 AVR UC3 microcontroller realizes the unification to accumulator charging/discharging process using pwm driver mode
Management, according to the C-V characteristic of field-effect tube it is found that in the saturation region of metal-oxide-semiconductor, when VGS is fixed, the variation of VDS is to IDS's
Influence less, there is constant-current source characteristic.Therefore, the gate source voltage that field-effect tube is adaptively adjusted by digital PI controller can be with
The constant current output set realizes the management of multisection type modified constant-voltage charge；
In the battery discharge process, accumulator voltage can gradually decrease down work blanking voltage from 13.1V
Therefore 10.5V, is powered DC load by the way of PWM pulsewidth modulation, makes so that the output of battery is unstable
Battery stablizes output；
To prevent battery after disconnecting due to AC power source from utilizing the unidirectional of diode to switching power circuit back discharge
On state characteristic prevents battery from inversely discharging, simultaneously by concatenating Schottky diode MBR20100 in the loop, it is contemplated that stores
Battery is likely to occur reversal connection when accessing, and circuit board component is caused to damage；Charge/discharge control circuit of the present invention uses metal-oxide-semiconductor reverse connecting protection
Circuit provides the gate source voltage of field-effect tube by resistance R9 and zener diode D2；When reverse connection of accumulator, gate source voltage
VGS=0, field-effect tube cut-off, charge circuit are disconnected；
The pwm driver selects fet gate to drive IR4427 driving chip, which has independent same Xiang Shuan
PWM gate leve drive control channel, compatible Transistor-Transistor Logic level can be controlled directly by the PWM output level of 32 AVR UC3 microcontrollers
Gate leve driver exports, and the timer 0 and timer 1 for passing through 32 AVR UC3 microcontrollers in the present invention generate two-way PWM,
It is connect respectively with the PWM input terminal of IR4427, to generate the PWM letter for being directly used in driving charge and discharge control circuit field-effect tube
Number；
The key-press input, status display, warning note are the touch screens that key-press input selects prestige synthetic fibre TK6102i, are equipped with
Each key adapts to changeable process control, realizes that the main of whole system enables control, signal designation；And status display, report
Alert prompt select liquid crystal display realize the charging and discharging state of whole system show, police instruction；
The CAN data communication uses PCA82C250 chip, and 6N137 is added between controller and chip, electricity is isolated
Road.PCA82C250 is the interface between CAN protocol controller and physical bus, which can provide differential transmission to bus
Ability, and differential reception ability can be provided to CAN controller, it is using wide CAN communication transceiver.
Compared with prior art, the beneficial effects of the present invention are:
A kind of locomotive storage batteries status monitoring disclosed by the invention and intelligence control system are based on 32 AVR UC3 micro-controls
Device processed is core and PWM commutation inversion technology, is made of inverse-excitation type switch power-supply and AVR micro controller unit, flyback switching
The alternating current of exchange input is converted to low-voltage DC to charge the battery by power supply, and AVR micro controller unit uses PWM pulsewidth
Modulation technique is managed collectively battery charge and discharge process, realize data acquisition and procession, accumulator cell charging and discharging control with
Reverse-connection protection circuit and the function of fet gate driving；By to voltage in battery charging process, current temperature
Variation is acquired, analyzes, handling, and rationally controls the progress of work of battery, to guarantee and improve the circulation of battery
Service life, the system real time can be good, reliable for operation, provide good solution for battery service and management.
Detailed description of the invention
Fig. 1 is electric locomotive Vehicle Controller structural schematic diagram of the invention；
Specific embodiment
Specific embodiment provided by the invention is described in detail below in conjunction with attached drawing.
As shown in Figure 1, a kind of locomotive storage batteries status monitoring and intelligence control system, by inverse-excitation type switch power-supply and AVR
Micro controller unit composition, the inverse-excitation type switch power-supply include exchange input, EMI filtering, AC/DC transformation, high frequency transformer
DC/DC transformation, direct current output, TL431+LTV817 loop compensation, current mode controller UC3843, switch power metal-oxide-semiconductor, institute
Stating AVR micro controller unit includes charging control circuit PMOS tube, battery, charge/discharge control circuit NMOS tube, DC load, end
Voltage detecting, temperature detection, charging current detection, 32 AVR UC3 microcontrollers, discharge current detection, key-press input, state
It has been shown that, warning note, CAN data communication, pwm driver；
The exchange input, EMI filtering, AC/DC transformation, high frequency transformer DC/DC transformation, direct current output, charge control
Circuit PMOS tube, battery, charge/discharge control circuit NMOS tube, DC load are sequentially electrically connected, the direct current output, TL431+
LTV817 loop compensation, current mode controller UC3843, switch power metal-oxide-semiconductor, high frequency transformer DC/DC transformation are sequentially electrical
Connection, the battery are electrically connected with terminal voltage detecting, temperature detection, charging current detection, discharge current detection respectively, institute
State 32 AVR UC3 microcontrollers respectively with terminal voltage detecting, temperature detection, charging current detection, discharge current detection, key
Input, status display, warning note, CAN data communication, pwm driver be electrically connected, the pwm driver respectively with charging
Control circuit PMOS tube, charge/discharge control circuit NMOS tube are electrically connected.
The alternating current of exchange input is converted to low-voltage DC to charge the battery by the inverse-excitation type switch power-supply, is had
Body design objective is as follows: industrial frequency AC inputs AC 220 (1 ± 20%) V；Direct current output 18V/10A and 10V/0.6；Switching frequency
FS=65kHz, output power Pout=180W, working efficiency η >=85%, maximum duty cycle Dmax=0.45, electric current continuous type
Operating mode CCM；
The EMI filtering can effectively filter out common mode and DM EMI in exchange input, and the AC/DC transformation is to pass through
A kind of alternating voltage is converted into the converter of another DC voltage by ac input circuit, rectification circuit and switching device,
The high frequency transformer DC/DC transformation is that AC/DC transformation is converted into the codomain model that DC voltage is converted to system service requirement
In enclosing, furthermore input power will be adjusted and be controlled, the direct current output will be converted by high frequency transformer DC/DC
Direct current is changed into the direct current electricity output of two-way DC low-voltage, connects TL431+LTV817 loop compensation all the way and enters loop benefit
Circuit is repaid, another way connection charging control circuit PMOS tube enters AVR micro controller unit；
The TL431+LTV817 loop compensation is constituted outer using controllable accurate source of stable pressure TL431 and linear optical coupling LTV817
The loop compensation of portion's error amplifier composition adjusts fixed frequency current-mode using the output error of Switching Power Supply as feedback signal
Formula controller UC3843 exports the duty ratio of PWM, realizes Switching Power Supply pressure stabilizing output, the current mode controller UC3843 tool
There is fine-tuning oscillator, can be carried out accurate duty ratio control, high-gain error amplifier, current sampling comparator and big electricity
Flow graph rises pillar output, is the ideal component of driving switch power MOS pipe turn-on deadline, ensure that the stabilization of system response time
Property and rapidity.
The AVR micro controller unit carries out unified pipe to battery charge and discharge process using PWM pulse modulation technology
Reason realizes the function that data acquisition and procession, accumulator cell charging and discharging control drive with reverse-connection protection circuit and fet gate
Can, 32 AVR UC3 microcontroller selects the microcontroller chip of ATUC256L4U；
The battery holds voltage to change between 10.5V~14.0V during the work time, 32 AVR UC3 microcontrollers
Device AD conversion reference voltage be 5V, it is therefore desirable to sampled signal is linearly improved, the present invention use resistance value for 400k Ω with
100k Ω, the resistance that precision is 1% carry out partial pressure sampling, divide coefficient k=0.2；
The terminal voltage detecting of the battery selects voltage transformer pt and charging current detection, discharge current detection
It selects Current Transmit detection charging, discharge current data to acquire and synchronize integration and gives 32 in the form of fiber optic communication
AVR UC3 microcontroller, the temperature detection select temperature sensor Pt100 resistance to detect the acquisition of battery temp data simultaneously
It synchronizes integration and gives 32 AVR UC3 microcontrollers in the form of fiber optic communication；
Since the output of voltage transformer pt, Current Transmit, temperature sensor is there are 2.5V direct current biasing, to eliminate
Bias voltage reduces by 32 AVR UC3 microcontroller conversions and calculates the time, construct difference channel using LM358, obtains practical
Electric current conversion voltage carry out AD sampling；The presence of circuit noise and external interference to be mixed with various make an uproar in AD sampled signal
Sound, to improve sampled signal signal-to-noise ratio, the present invention devises passband cutoff frequency using Butterworth LPF design method
Rate is 100Hz, and stopband cutoff frequency is 500Hz, and the second order active low-pass filter that output gain is 1 is filtered place to signal
Reason.
To realize that sampling with high precision and vector calculate, 32 AVR UC3 microcontroller is sampled using DC synchronous
Technology is sampled with the rate of 10kHz, while calculating real-time frequency by instantaneous frequency track algorithm, and then change sampling
It is spaced and is sampled, to realize that DC synchronous samples；Sampled signal enters 32 AVR UC3 microcontrollers and by 32
AVR UC3 microcontroller completes data processing within the extremely short period, and sends data to CAN data communication；
32 AVR UC3 microcontroller realizes the unification to accumulator charging/discharging process using pwm driver mode
Management, according to the C-V characteristic of field-effect tube it is found that in the saturation region of metal-oxide-semiconductor, when VGS is fixed, the variation of VDS is to IDS's
Influence less, there is constant-current source characteristic.Therefore, the gate source voltage that field-effect tube is adaptively adjusted by digital PI controller can be with
The constant current output set realizes the management of multisection type modified constant-voltage charge；
In the battery discharge process, accumulator voltage can gradually decrease down work blanking voltage from 13.1V
Therefore 10.5V, is powered DC load by the way of PWM pulsewidth modulation, makes so that the output of battery is unstable
Battery stablizes output；
To prevent battery after disconnecting due to AC power source from utilizing the unidirectional of diode to switching power circuit back discharge
On state characteristic prevents battery from inversely discharging, simultaneously by concatenating Schottky diode MBR20100 in the loop, it is contemplated that stores
Battery is likely to occur reversal connection when accessing, and circuit board component is caused to damage；Charge/discharge control circuit of the present invention uses metal-oxide-semiconductor reverse connecting protection
Circuit provides the gate source voltage of field-effect tube by resistance R9 and zener diode D2；When reverse connection of accumulator, gate source voltage
VGS=0, field-effect tube cut-off, charge circuit are disconnected；
The pwm driver selects fet gate to drive IR4427 driving chip, which has independent same Xiang Shuan
PWM gate leve drive control channel, compatible Transistor-Transistor Logic level can be controlled directly by the PWM output level of 32 AVR UC3 microcontrollers
Gate leve driver exports, and the timer 0 and timer 1 for passing through 32 AVR UC3 microcontrollers in the present invention generate two-way PWM,
It is connect respectively with the PWM input terminal of IR4427, to generate the PWM letter for being directly used in driving charge and discharge control circuit field-effect tube
Number；
The key-press input, status display, warning note are the touch screens that key-press input selects prestige synthetic fibre TK6102i, are equipped with
Each key adapts to changeable process control, realizes that the main of whole system enables control, signal designation；And status display, report
Alert prompt select liquid crystal display realize the charging and discharging state of whole system show, police instruction；
The CAN data communication uses PCA82C250 chip, and 6N137 is added between controller and chip, electricity is isolated
Road.PCA82C250 is the interface between CAN protocol controller and physical bus, which can provide differential transmission to bus
Ability, and differential reception ability can be provided to CAN controller, it is using wide CAN communication transceiver.
Above embodiments are implemented under the premise of the technical scheme of the present invention, give detailed embodiment and tool
The operating process of body, but protection scope of the present invention is not limited to the above embodiments.Method therefor is such as without spy in above-described embodiment
Not mentionleting alone bright is conventional method.
Claims (2)
1. a kind of locomotive storage batteries status monitoring and intelligence control system, by inverse-excitation type switch power-supply and AVR micro controller unit
Composition, the inverse-excitation type switch power-supply convert including exchange input, EMI filtering, AC/DC exchange, high frequency transformer DC/DC, are straight
Flow output, TL431+LTV817 loop compensation, current mode controller UC3843, switch power metal-oxide-semiconductor, the AVR microcontroller
Device unit includes charging control circuit PMOS tube, battery, charge/discharge control circuit NMOS tube, DC load, terminal voltage detecting, temperature
Degree detection, charging current detection, 32 AVR UC3 microcontrollers, discharge current detection, key-press input, status display, alarm mention
Show, CAN data communication, pwm driver；It is characterized by:
The exchange input, EMI filtering, AC/DC exchange, high frequency transformer DC/DC transformation, direct current output, charging control circuit
PMOS tube, battery, charge/discharge control circuit NMOS tube, DC load are sequentially electrically connected,
The direct current output, TL431+LTV817 loop compensation, current mode controller UC3843, switch power metal-oxide-semiconductor, high frequency
Transformer DC/DC transformation is sequentially electrically connected,
The battery is electrically connected with terminal voltage detecting, temperature detection, charging current detection, discharge current detection respectively,
32 AVR UC3 microcontroller is examined with terminal voltage detecting, temperature detection, charging current detection, discharge current respectively
Survey, key-press input, status display, warning note, CAN data communication, pwm driver are electrically connected,
The pwm driver is electrically connected with charging control circuit PMOS tube, charge/discharge control circuit NMOS tube respectively.
2. a kind of locomotive storage batteries status monitoring and intelligence control system according to claim 1, it is characterised in that:
32 AVR UC3 microcontroller selects the microcontroller chip of ATUC256L4U.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435615.7A CN109962518A (en) | 2017-12-26 | 2017-12-26 | A kind of locomotive storage batteries status monitoring and intelligence control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711435615.7A CN109962518A (en) | 2017-12-26 | 2017-12-26 | A kind of locomotive storage batteries status monitoring and intelligence control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109962518A true CN109962518A (en) | 2019-07-02 |
Family
ID=67022446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711435615.7A Pending CN109962518A (en) | 2017-12-26 | 2017-12-26 | A kind of locomotive storage batteries status monitoring and intelligence control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109962518A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110620417A (en) * | 2019-10-02 | 2019-12-27 | 深圳市励骏光电有限公司 | Flyback current mode PWM control charging system and charging method |
| CN113829931A (en) * | 2020-06-24 | 2021-12-24 | 比亚迪股份有限公司 | Train charging control method and device and train |
| CN113998123A (en) * | 2021-10-09 | 2022-02-01 | 广东汇天航空航天科技有限公司 | Power system, flyable device and power control method |
-
2017
- 2017-12-26 CN CN201711435615.7A patent/CN109962518A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110620417A (en) * | 2019-10-02 | 2019-12-27 | 深圳市励骏光电有限公司 | Flyback current mode PWM control charging system and charging method |
| CN113829931A (en) * | 2020-06-24 | 2021-12-24 | 比亚迪股份有限公司 | Train charging control method and device and train |
| CN113829931B (en) * | 2020-06-24 | 2023-07-11 | 比亚迪股份有限公司 | Train charging control method and device and train |
| CN113998123A (en) * | 2021-10-09 | 2022-02-01 | 广东汇天航空航天科技有限公司 | Power system, flyable device and power control method |
| CN113998123B (en) * | 2021-10-09 | 2023-06-02 | 广东汇天航空航天科技有限公司 | Power system, flyable device and power control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202514092U (en) | Industrial electromagnetic heating controller | |
| CN109962518A (en) | A kind of locomotive storage batteries status monitoring and intelligence control system | |
| CN110341539B (en) | Multifunctional charging pile | |
| CN101488728A (en) | Elevator driving inverter system without electrolytic capacitor | |
| CN207753492U (en) | A kind of locomotive storage batteries status monitoring and intelligence control system | |
| CN201639481U (en) | Multi-output isolating power supply | |
| CN102386780A (en) | Push-pull circuit of DC/DC (Direct Current/Direct Current) part | |
| CN207166158U (en) | A kind of efficient electricity getting device for ultra-high-tension power transmission line | |
| CN103997053B (en) | Energy in bidirectional flow EPS | |
| CN202931197U (en) | Flyback converter based on transformer transformation | |
| CN112311106A (en) | Single-stage full-bridge constant-current constant-voltage wireless charging device and control method thereof | |
| CN108879982B (en) | Bistable primary side constant-current magnetic induction coupling wireless charging device and use method thereof | |
| CN202009342U (en) | Inverter DC-DC parallel module digitalized current equalizing device | |
| CN101898270B (en) | Inverter type alternative current medium frequency electric arc welding machine | |
| CN201656537U (en) | Accumulator charger | |
| CN204408678U (en) | A kind of light fixture information acquisition control device | |
| CN115241986B (en) | Wireless power system output feedback control method based on optimal efficiency tracking and cascading converter | |
| CN109861566A (en) | A kind of circuit of synchronous rectification, synchronous rectification method and wireless charging device | |
| CN205407605U (en) | Linear DC power supply control system | |
| CN201065814Y (en) | Body-building device converting biological energy into AC | |
| CN208971395U (en) | Isolation type switching power supply | |
| CN202956649U (en) | Variable frequency energy-saving control and remote wireless management system for air compressor | |
| CN209250280U (en) | A kind of middle pressure flexible direct current two-way changing device for direct-current grid | |
| CN108063500B (en) | Magnetic resonance non-contact power supply system and method for on-line monitoring wireless sensor | |
| CN202888949U (en) | Double-power power supply device of active power transducer of power generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190702 |
|
| WD01 | Invention patent application deemed withdrawn after publication |