CN102891514A - Energy feedback type storage battery discharging device - Google Patents
Energy feedback type storage battery discharging device Download PDFInfo
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- CN102891514A CN102891514A CN2012103934396A CN201210393439A CN102891514A CN 102891514 A CN102891514 A CN 102891514A CN 2012103934396 A CN2012103934396 A CN 2012103934396A CN 201210393439 A CN201210393439 A CN 201210393439A CN 102891514 A CN102891514 A CN 102891514A
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Abstract
The invention discloses an energy feedback type storage battery discharging device, which comprises an inverter circuit, a transformer, a microcontroller, a man-machine interface, a liquid crystal display (LCD) monitoring module, a driving circuit and two sampling circuits. The power loop parameters are reasonably configured, a proper control strategy is adopted, the man-machine interface is designed in a humanized mode, reliable and stable high-precision constant current discharge operation of the discharging device is realized, and the voltage and capacity of a storage battery are conveniently and intuitively monitored on line.
Description
Technical field
The present invention relates to a kind of Battery Discharging Device, relate in particular to and a kind ofly can present the formula Battery Discharging Device.
Background technology
In industrial circle, storage battery plays an important role as stand-by power supply always.Storage battery in order to detect battery capacity state and activation battery, must regularly carry out discharge test at routine use with in safeguarding.Along with country's being rooted in the hearts of the people of " energy-saving and emission-reduction " policy, can present the formula Battery Discharging Device becomes in recent years study hotspot.
10-12h constant-current discharge mode is adopted in battery discharging usually, detects capacity and the state of storage battery by the monitoring accumulator battery voltage.Battery Discharging Device mainly contains following several both at home and abroad at present:
1) conductive discharge device.The conductive discharge device is comprised of the resistor group, regulates the discharging current size by switch.For preventing that storage battery from too much discharging, must timing manual detection battery tension.The conductive discharge device technique is simple, and reliable operation is used widely as traditional Battery Discharging Device.Its shortcoming is to realize constant-current discharge, and is bulky, and causes energy waste.
2) can present formula single-phase full bridge active inversion electric discharge device.The single-phase full-bridge inverter DC side links to each other with batteries, and it is to be connected to the grid with exchanging of homophase of frequency with electrical network that inverter flows inversion with accumulator DC,
Realize that storage battery energy feeds back to electrical network.It is large that shortcoming is mainly the discharging current ripple, larger to the three phase network harmonic pollution, because capacity limit can't satisfy large-capacity battery group discharge demand.
3) simulation control can present formula three-phase inversion electric discharge device.The three-phase grid-connected inverter DC side links to each other with batteries, and inverter is finished inversion, the phase-locked function such as be incorporated into the power networks by simulation control, and battery discharge energy is fed back to electrical network.Its major defect is complicated for device designs with debugging, and intelligent degree is low, and discharge process still needs manual record accumulator battery voltage parameter etc.
Summary of the invention
The present invention seeks to provide a kind of for the defective that prior art exists and to present the formula Battery Discharging Device.
The present invention adopts following technical scheme for achieving the above object:
A kind ofly can present the formula Battery Discharging Device, comprise inverter circuit, transformer, microcontroller, man-machine interface and LCD monitoring module, drive circuit and two sample circuits, the output of the input termination batteries of inverter circuit wherein, be connected with three phase network behind the output series transformer of inverter, microcontroller and man-machine interface and the two-way communication of LCD monitoring module, the output of microcontroller drives inverter circuit work by drive circuit, the voltage and current signal of the output of the first sample circuit sampling batteries, the output voltage current signal of the second sample circuit sampling transformer, the output of two sample circuits connects respectively the input of microcontroller.
Preferably, inductance also is set between described inverter circuit and the transformer.
Preferably, on described man-machine interface and the LCD monitoring module display module and parameter setting module are set also.
Preferably, described inverter circuit is the three-phase PWM inverter bridge.
Beneficial effect of the present invention:
By reasonable disposition loop of power circuit parameter, adopt suitable control strategy, carry out the man-machine interface design of hommization, realized the high precision constant current discharge operation that electric discharge device is reliable and stable, the convenient intuitively on-line monitoring of battery tension and capacity.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, the present invention is a kind of to present the formula Battery Discharging Device, comprise inverter circuit, transformer, microcontroller, man-machine interface and LCD monitoring module, drive circuit and two sample circuits, the output of the input termination batteries of inverter circuit wherein, be connected with three phase network behind the output series transformer of inverter, microcontroller and man-machine interface and the two-way communication of LCD monitoring module, the output of microcontroller drives inverter circuit work by drive circuit, the voltage and current signal of the output of the first sample circuit sampling batteries, the output voltage current signal of the second sample circuit sampling transformer, the output of the circuit of two samplings connects respectively the input of microcontroller.
Preferably, inductance also is set between described inverter circuit and the transformer.
Preferably, on described man-machine interface and the LCD monitoring module display module and parameter setting module are set also.
Preferably, described inverter circuit is the three-phase PWM inverter bridge.
The direct current of battery discharging is converted to the three-phase alternating current loopback through three phase inverter bridge and enters electrical network.Finish take the DSP2812 of TI company as the controlling unit of core that sampled data is calculated, pwm signal produces, phase-locked and with the work such as exchanges data of man-machine interface.As long as in parameters such as man-machine interface input discharge current value, discharge time and discharge cut-off voltage and storage battery low-voltage protection magnitudes of voltage; the battery discharging process can be controlled automatically, and the data such as system's three-phase voltage, inverter three-phase current, battery tension, battery discharging electric current, discharge time and discharge capacity ampere-hour number can record and show in real time by the LCD liquid crystal automatically in the discharge process.The automatic record of the every 5min of battery tension data once can be connected with PC by the RS232 data-interface after discharge finishes, and is convenient directly perceived with the form demonstration of form and curve, realizes the discharge process unattended operation.
Claims (4)
1. can present the formula Battery Discharging Device for one kind, it is characterized in that comprising inverter circuit, transformer, microcontroller, man-machine interface and LCD monitoring module, drive circuit and two sample circuits, the output of the input termination batteries of inverter circuit wherein, be connected with three phase network behind the output series transformer of inverter, microcontroller and man-machine interface and the two-way communication of LCD monitoring module, the output of microcontroller drives inverter circuit work by drive circuit, the voltage and current signal of the output of the first sample circuit sampling batteries, the output voltage current signal of the second sample circuit sampling transformer, the output of two sample circuits connects respectively the input of microcontroller.
2. according to claim 1ly a kind ofly can present the formula Battery Discharging Device, it is characterized in that also arranging between described inverter circuit and the transformer inductance.
3. according to claim 1ly a kind ofly can present the formula Battery Discharging Device, it is characterized in that on described man-machine interface and the LCD monitoring module display module and parameter setting module being set also.
4. according to claim 1ly a kind ofly can present the formula Battery Discharging Device, it is characterized in that described inverter circuit is the three-phase PWM inverter bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103934396A CN102891514A (en) | 2012-10-17 | 2012-10-17 | Energy feedback type storage battery discharging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103934396A CN102891514A (en) | 2012-10-17 | 2012-10-17 | Energy feedback type storage battery discharging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102891514A true CN102891514A (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103934396A Pending CN102891514A (en) | 2012-10-17 | 2012-10-17 | Energy feedback type storage battery discharging device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102891514A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825337A (en) * | 2014-03-12 | 2014-05-28 | 上海理工大学 | V2G-based constant-current discharge system and control method thereof |
| CN109521236A (en) * | 2019-01-30 | 2019-03-26 | 苑恩萌 | A kind of portable mobile wireless secondary circuit dosage instrument and its dosage method |
-
2012
- 2012-10-17 CN CN2012103934396A patent/CN102891514A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825337A (en) * | 2014-03-12 | 2014-05-28 | 上海理工大学 | V2G-based constant-current discharge system and control method thereof |
| CN109521236A (en) * | 2019-01-30 | 2019-03-26 | 苑恩萌 | A kind of portable mobile wireless secondary circuit dosage instrument and its dosage method |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130123 |