CN201708554U - Novel vanadium battery charging and discharging control cabinet - Google Patents
Novel vanadium battery charging and discharging control cabinet Download PDFInfo
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- CN201708554U CN201708554U CN200920025967XU CN200920025967U CN201708554U CN 201708554 U CN201708554 U CN 201708554U CN 200920025967X U CN200920025967X U CN 200920025967XU CN 200920025967 U CN200920025967 U CN 200920025967U CN 201708554 U CN201708554 U CN 201708554U
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Abstract
The utility model discloses a novel vanadium battery charging and discharging control cabinet, which comprises a charging circuit control device and a discharging circuit control device. The charging circuit control device includes a voltage stabilizing device and a current limiting device, and/or the discharging circuit control device comprises an inverter and/or a booster. The novel vanadium battery charging and discharging control cabinet integrates voltage stabilization, current limiting, inversion and boosting control, effectively protects use safety of a vanadium battery, and realizes real-time and intelligent optimal control.
Description
Technical field
The utility model relates to a kind of battery charging and discharging control cubicle, and especially a kind of novel vanadium cell discharges and recharges control cubicle.
Background technology
Solar energy charges to vanadium cell, the reactor generation cell reaction of positive and negative electrolyte in battery.Because vanadium cell has certain withstand voltage scope, and the solar energy output voltage may be very high with the intensity of illumination variation, and the reactor that can destroy battery above the highest charging voltage of bearing voltage of vanadium cell makes positive and negative electrolyte lose the chemical property of electrolysis place even destruction electrolyte.The existing control cubicle in market can not be given the vanadium cell safe charging with span big variation Voltage Stability Control like this near the vanadium cell rated voltage.
To cross when low internal resistance very little when the vanadium cell electric weight, and charging beginning immediate current may have destruction to cell reaction heap and electrolyte very greatly, and existing control cubicle can not be to the metering function of vanadium cell input current.
Simultaneously, vanadium cell is output as direct current, is alternating current and housed device uses, and the magnetic drive pump that drives circulate electrolyte also is to use alternating current.The circulation magnetic drive pump plays a significant role in the charge and discharge process of vanadium cell, and it drives circulate electrolyte and flows, and makes positive and negative electrolyte obtain abundant electrolysis in reactor, thereby embodies the vanadium cell superior performance.
Since the terminal voltage of vanadium cell cross when low can not proof load normal operation, so control cubicle should be controlled at the vanadium cell minimum voltage more than the minimum operating voltage.
Summary of the invention
In view of this, the utility model is devoted to the optimal control that realizes that vanadium cell discharges and recharges, has proposed the new control method of the inversion boosting of the voltage stabilizing current limliting of charge circuit and discharge loop.
According to the utility model, provide a kind of novel vanadium cell to discharge and recharge control cubicle.This control cubicle comprises the control device of charge circuit and the control device of discharge loop, it is characterized in that:
The control device of described charge circuit comprises stable-pressure device and current-limiting apparatus; With
The control device of described discharge loop comprises inverter and increasing apparatus; Described stable-pressure device comprises a zener, is connected in parallel on the two poles of the earth of vanadium cell, and current-limiting apparatus comprises current-limiting resistance and current relay, is connected in parallel on the two poles of the earth of vanadium cell after current-limiting resistance and the current relay series connection; Described inverter comprises an inverter, and increasing apparatus comprises the step-up transformer that is converted to the general alternating current of 220V.
Extra-high pressure detected and reports to the police and handle when preferably, the control device of above-mentioned charge circuit also comprised voltage stabilizing control actual effect checkout gear and warning device; And/or
The control device of above-mentioned discharge loop also comprises and detects the output voltage be lower than vanadium cell protection voltage and the detection protective device of disconnecting consumers when brownout.
Preferably, the control device of above-mentioned discharge loop also comprises Voltage stabilizing module.
The utility model has been optimized the control of the charge circuit and the discharge loop of vanadium cell by adopting controls such as voltage stabilizing current limliting and inversion boosting; Simultaneously, adopt electronic component less, hardware cost is low.
Below with reference to accompanying drawings specific embodiments of the present utility model is described in detail, wherein:
Description of drawings
Fig. 1 is a control principle structure chart of the present utility model;
Fig. 2 is the voltage stabilizing flow restriction figure of first embodiment of the utility model; And
Fig. 3 is the inversion boosting structure chart of second embodiment of the utility model.
In order to realize the optimal control to the charge circuit and the discharge loop of vanadium cell, the utility model provides a kind of novel vanadium cell to discharge and recharge control cubicle.Next specify this control cubicle.
Fig. 1 illustrates control principle structure chart of the present utility model.As shown in Figure 1, this vanadium cell discharges and recharges control and comprises the control of charge circuit and the control of discharge loop, wherein:
Embodiment
The control that is controlled to be voltage stabilizing and current limliting of charge circuit; And/or
Being controlled to be inversion and/or boosting control of discharge loop.
Solar energy produces electric current under illumination condition, vanadium cell is charged.In charge circuit, charging current is carried out the control of voltage stabilizing and current limliting.
On the other hand, the electric energy in the vanadium cell provides electric energy by discharge loop to load.In discharge loop, the control that discharging current is carried out inversion and/or boosts.
In sum, just can realize optimal control that vanadium cell is discharged and recharged substantially, ensure multipurpose and the convenience of solar energy the fail safe and the vanadium cell discharge of vanadium cell charging.
On the basis of clear and definite control principle, also be easier to obtain discharging and recharging the apparatus structure relation of control cubicle.
With reference to Fig. 1 as can be known, the utility model vanadium cell discharges and recharges control cubicle and comprises the control device of charge circuit and the control device of discharge loop, wherein:
The control device of charge circuit comprises stable-pressure device and current-limiting apparatus; And/or
The control device of discharge loop comprises inverter and/or increasing apparatus.
Fig. 2 illustrates the voltage stabilizing flow restriction figure of first embodiment of the utility model.As shown in Figure 2, the control device of charge circuit comprises stable-pressure device and current-limiting apparatus in this embodiment.Wherein stable-pressure device comprises a zener, is connected in parallel on the two poles of the earth of vanadium cell; Current-limiting apparatus comprises current-limiting resistance and current relay, is connected in parallel on the two poles of the earth of vanadium cell after current-limiting resistance and the current relay series connection.
In another embodiment, also can carry out voltage division processing to the electric current that solar energy produces, the divider resistance of also promptly in the loop, connecting, the position is in the end near solar energy.The access point of stable-pressure device and current-limiting apparatus is respectively in the rear end of divider resistance, and stable-pressure device and current-limiting apparatus are to carrying out voltage stabilizing and current limliting respectively through the voltage and current after the voltage division processing.
Vanadium cell with 40 monomers of rated power (2.5KW) and rated current (55A) is an example below, specifies the control device and the course of work thereof of charge circuit.
Because vanadium cell monomer terminal voltage is the highest can not surpass 1.70V, the reactor terminal voltage of 40 monomer formations is the highest can not to surpass 68V, and under ideal conditions during this vanadium cell full power state terminal voltage be 60V.For guaranteeing the vanadium cell safe charging, improve the electrolyte conversion efficiency, need carry out voltage stabilizing control.
Voltage stabilizing control adopts pressurizer that the dc controlled that solar energy output changes is charged to vanadium cell between 62-68V.In charging beginning moment, the minimum and immediate current of battery pile resistance can be very big.For preventing the destruction of heavy current to the cell reaction heap, the current limiting control apparatus of controller should be with Current Control in 55A; Take all factors into consideration the variation restriction of voltage and electric current in the loop, stable-pressure device adopts zener to carry out voltage stabilizing here.
At charge circuit current-limiting resistance in parallel and current relay, relay contact disconnection current-limiting resistance no current flows through when charging current is in allowed band, but relay contact is in conducting state access current-limiting resistance when charging current exceeds permissible value, thereby charging current is controlled in the battery allowed band.
In addition, in one embodiment, checkout gear and warning device that the extra-high pressure the when control device of charge circuit also comprises the voltage stabilizing control fails detects and reports to the police and handle.Checkout gear comprises a voltage relay, and warning device comprises a boom unit.
The situation that it is concrete: give the vanadium cell charge circuit an additional alarm circuit at solar energy, buzzer siren is controlled by voltage relay, if voltage stabilizing control fails vanadium cell terminal voltage is higher than 63V, voltage relay will be connected boom unit and report to the police.By voltage stabilizing current-limiting circuit and buzzing warning device the Detection ﹠ Controling realization of charge circuit is carried out duplicate protection to vanadium cell.
Fig. 3 illustrates the inversion boosting structure chart of second embodiment of the utility model.As shown in Figure 3, the control device of discharge loop comprises inverter and/or increasing apparatus in this embodiment.Wherein, inverter comprises an inverter, and increasing apparatus comprises the step-up transformer that is converted to the general alternating current of 220V.
In this embodiment, inverter is a bridge-type inverter, and it is simple in structure, the save design cost.Direct current to vanadium cell output is handled through inversion earlier, boosts then, uses to offer load.
In another embodiment, the control device of discharge loop also comprises the magnetic drive pump of the positive and negative circulate electrolyte of control vanadium cell.It is connected the load end of increasing apparatus, and controls its work in real time by the voltage relay (KM1) that is connected in the discharge loop.
In yet another embodiment, the control device of discharge loop also comprises and detects the output voltage be lower than vanadium cell protection voltage and the detection protective device of disconnecting consumers when brownout.It mainly comprises a voltage relay (KM2) that is connected in the discharge loop, and the output of inverter is controlled in real time, and just disconnecting consumers during brownout is effectively protected vanadium cell in the discharge loop.
Further, in one embodiment, can be to the input of the inverter of discharge loop by a divider resistance through dividing potential drop, and then carry out voltage stabilizing by the Voltage stabilizing module that LM2575HV series integrated chip constitutes and handle the back and provide input to inverter, can effectively reduce the fluctuation of input voltage.
Next, describe the control device and the course of work thereof of discharge loop in detail.
The vanadium cell output DC becomes alternating current through the full-bridge inverting module converts, this moment, the alternating current voltage of output equaled cell output voltage, this magnitude of voltage excursion at 32V between the 63V, by of the voltage voltage stabilizing of zener pressurizer, by a step-up transformer output voltage of battery is finally transformed into the 220V alternating current again and supply with magnetic drive pump and load this variation.
Cell reaction generation electric current takes place in reactor because the energy source of battery is mainly positive and negative electrolyte, so the control device of the utility model discharge loop also needs when cell output voltage is lower than 60V, detecting cell output voltage by voltage relay (KM1) is lower than 60V and connects magnetic drive pump automatically and drive positive and negative circulate electrolyte and make it that electrolysis charges the battery in reactor, voltage relay when battery terminal voltage is higher than 63V (KM1) automatic disconnection magnetic drive pump loop, magnetic drive pump quits work.
When cell output voltage during greater than 32V; voltage is supply load after inversion; if cell output voltage is lower than 32V (promptly being lower than the protection voltage of battery) voltage relay (KM2) automatic disconnection electric loading, battery is no longer exported to load, thereby plays the effect of protection battery.
To sum up each embodiment as can be known, the utility model circuit simply is easy to control, the electronic devices and components negligible amounts, cost is low, can better improve the utilance of battery, guarantees battery useful life.
More than specific descriptions of the present utility model are intended to illustrate the implementation of specific embodiments can not be interpreted as it is to restriction of the present utility model.Those of ordinary skills can make various variants on the basis of the embodiment that describes in detail under instruction of the present utility model, these variants all should be included within the design of the present utility model.The utility model scope required for protection is only limited by described claims.
Claims (4)
1. a novel vanadium cell discharges and recharges control cubicle, comprises the control device of charge circuit and the control device of discharge loop, it is characterized in that:
The control device of described charge circuit comprises stable-pressure device and current-limiting apparatus; With
The control device of described discharge loop comprises inverter and increasing apparatus; Described stable-pressure device comprises a zener, is connected in parallel on the two poles of the earth of vanadium cell, and current-limiting apparatus comprises current-limiting resistance and current relay, is connected in parallel on the two poles of the earth of vanadium cell after current-limiting resistance and the current relay series connection; Described inverter comprises an inverter, and increasing apparatus comprises the step-up transformer that is converted to the general alternating current of 220V.
2. vanadium cell as claimed in claim 1 discharges and recharges control cubicle, it is characterized in that:
The magnetic drive pump that also comprises the positive and negative circulate electrolyte of control vanadium cell.
3. vanadium cell as claimed in claim 1 or 2 discharges and recharges control cubicle, it is characterized in that:
The control device of described discharge loop also comprises Voltage stabilizing module.
4. vanadium cell as claimed in claim 1 or 2 discharges and recharges control cubicle, it is characterized in that:
Extra-high pressure detected and reports to the police and handle when the control device of described charge circuit also comprised the voltage stabilizing control fails checkout gear and warning device; And/or
The control device of described discharge loop also comprises and detects the output voltage be lower than vanadium cell protection voltage and the detection protective device of disconnecting consumers when brownout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920025967XU CN201708554U (en) | 2009-05-27 | 2009-05-27 | Novel vanadium battery charging and discharging control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920025967XU CN201708554U (en) | 2009-05-27 | 2009-05-27 | Novel vanadium battery charging and discharging control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201708554U true CN201708554U (en) | 2011-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920025967XU Expired - Lifetime CN201708554U (en) | 2009-05-27 | 2009-05-27 | Novel vanadium battery charging and discharging control cabinet |
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| CN (1) | CN201708554U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715727A (en) * | 2012-10-09 | 2014-04-09 | 成都天宇创新科技有限公司 | Management device for charging and discharging of vanadium battery |
| CN113224815A (en) * | 2021-05-14 | 2021-08-06 | 湖北三宁化工股份有限公司 | Direct-current screen storage battery discharging device and method |
-
2009
- 2009-05-27 CN CN200920025967XU patent/CN201708554U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715727A (en) * | 2012-10-09 | 2014-04-09 | 成都天宇创新科技有限公司 | Management device for charging and discharging of vanadium battery |
| CN113224815A (en) * | 2021-05-14 | 2021-08-06 | 湖北三宁化工股份有限公司 | Direct-current screen storage battery discharging device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: QINGDAO WUXIAO GROUP CO., LTD. Free format text: FORMER NAME: QINGDAO WUXIAO (GROUP) CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 266300, No. 553 East Lanzhou Road, Qingdao, Shandong, Jiaozhou Patentee after: Qingdao Wuxiao [Group] Share Co., Ltd. Address before: 266300 No. 553 East Lanzhou Road, Shandong, Jiaozhou Patentee before: Qingdao Wuxiao (Group) Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110112 |