CN101813755A - Charge and discharge test equipment for full on-line storage battery pack - Google Patents
Charge and discharge test equipment for full on-line storage battery pack Download PDFInfo
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- CN101813755A CN101813755A CN 201010162531 CN201010162531A CN101813755A CN 101813755 A CN101813755 A CN 101813755A CN 201010162531 CN201010162531 CN 201010162531 CN 201010162531 A CN201010162531 A CN 201010162531A CN 101813755 A CN101813755 A CN 101813755A
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Abstract
The invention provides a charge and discharge test equipment for a full on-line storage battery pack, which comprises a DC-DC host operating power supply, a control unit, a positive and negative polarity change-over switch, a second safeguard circuit, a safeguard circuit, an automatic current limiting charge and equipotential bonding safety control circuit, a DC-DC transducer, a constant current discharge load intelligent control circuit and a discharge load circuit, wherein the safeguard circuit, the automatic current limiting charge and equipotential bonding safety control circuit and the DC-DC transducer are mutually connected in parallel; and the constant current discharge load intelligent control circuit and the discharge load circuit are mutually connected in series. The equipment realizes the best safe operation mode and is suitable for charge and discharge maintenance tests of the on-line storage battery packs of different positive and negative communication power supplies. No matter the operating power supply is positively grounded or negatively grounded, when the equipment carries out on-line maintenance test, only the power supply operating grounding terminal connected with side of the storage battery pack needs to be operated, thereby avoiding the risk of short circuit caused by contacting the ground in operation, and the equipment has the charge and discharge maintenance functions of constant current voltage limiting and voltage stabilized current limiting for the on-line storage battery packs, and is more flexible, safer and simpler in use of maintenance test.
Description
[technical field]
The present invention relates to power-source maintenance equipment in the communication network, particularly relates to a kind of charge and discharge test equipment for full on-line storage battery pack.
[background technology]
The communications industry has wireless base station power supply backup battery maintenance management now, because of the many scales of wireless base station quantity big, maintenance work labour intensity height, the cost height, have a big risk, the maintenance work task is heavy, and the problem that wastes energy, cause the maintenance work of most battery capacity discharge test to fail to implement completely, cause the actual capacity of radio communication base station backup battery group is not understood, emergency guarantee power supply duration is unclear, often interrupt to carry out the emergency power generation management and running effectively because of civil power, often cause the generation of wireless base station communication disruption accident, accumulator is scrapped in advance, and these problems are perplexing whole communications industry power-source maintenance management work person and concrete maintenance staff always.
For realizing the complete online unattended intelligent monitoring management of radio communication base station power supply backup battery group, automatically finish the volume test of online accumulator cell charging and discharging by remote monitoring, in time control the data of all online battery capacities of existing network and guarantee power supply duration, reduce maintainer's labour intensity, reduce the maintenance cost spending, improve network running quality and whole maintenance work efficient, promote the integrated maintenance management level of network security operation, take scientific and effective maintenance management technology, prolong battery pack serviceable life, realize that the online battery pack charge/discharge capacity of the whole network detects and the automatic maintenance management of system automatically.
[summary of the invention]
The major technology problem that the present invention will solve, be to provide a kind of can in complete online comprehensive battery pack device systems, use charge and discharge test equipment for full on-line storage battery pack, this charge and discharge test equipment for full on-line storage battery pack can be used as the maintenance test of the online charge and discharge of battery pack simultaneously.
The present invention is achieved in that a kind of charge and discharge test equipment for full on-line storage battery pack, it is characterized in that: comprise a DC-DC host work power supply, one control module, one positive-negative polarity switch, second safety protective circuit, a safety protective circuit connected with each other, one automatic current limiting charging is connected safety control circuit with equipotential, one DC-DC transducer, and the constant-current discharge load intelligence control circuit and the discharge load circuit that are connected in series mutually, described positive-negative polarity switch input is connected to safety protective circuit, the automatic current limiting charging is connected safety control circuit with equipotential, second safety protective circuit is exported and connect to the DC-DC transducer; Described control module further comprises a MCU unit and a current/voltage data acquisition that all is connected with this MCU unit and conversion control circuit, battery pack monomer voltage checkout equipment, data-carrier store, telecommunication circuit again, LCD shows and the keyboard input; The output of DC-DC host work power supply is connected with described constant-current discharge load intelligence control circuit, DC-DC transducer, control module in the described equipment; Described DC-DC transducer is connected with described current/voltage data acquisition and conversion control circuit and MCU unit respectively; The MCU unit also is connected safety control circuit with described constant-current discharge load intelligence control circuit, automatic current limiting charging respectively and connects with equipotential; Tested battery pack DC-DC transducer in parallel, and the input of constant-current discharge load intelligence control circuit, DC-DC host work power supply provide main frame operate as normal power supply.
Preferable; technique scheme also comprises the forward and reverse polarity work of power supply holding circuit; the output of the forward and reverse polarity work of this power supply holding circuit respectively with described constant-current discharge load intelligence control circuit, and DC-DC transducer parallel with one another, DC-DC host work power supply connect.Or described DC-DC transducer, DC-DC host work power supply, described constant-current discharge load intelligence control circuit all have the characteristics of forward and reverse polarity power work.
Preferable, technique scheme also comprises an AC/DC Switching Power Supply, and described host work power supply is the DC-DC power supply, and the input and output of this AC/DC Switching Power Supply connect described host work power supply and civil power respectively.
Preferable, technique scheme also comprises a current detection circuit, this current detection circuit can be a sensor, described current detection circuit is coupled in this equipment and monitors an input end that discharges and recharges working power of described tested battery pack, detects charging, the discharge current of online tested battery pack for charge and discharge test equipment for full on-line storage battery pack.
Preferable; described safety protective circuit is a heavy-duty diode; its two ends are connected in series between the DC distributor of communication storage battery group and power supply system for communications equipment, guarantee that battery pack is in the state that works online safely all the time, does not influence the normal safe power supply to communication system equipment.
Described second safety protective circuit comprises that a great power bidirectional power supply static switch pipe, a direct current contactor and are used to control and protect the automatic protection circuit of this great power bidirectional power supply static switch pipe and D.C. contactor work, and described great power bidirectional power supply static switch pipe and D.C. contactor are connected in parallel.This second safety protective circuit guarantees all can the uninterrupted safe power supply of real-time online in tested battery charging or the discharge test process.Simultaneously also be to finish to discharge and recharge conversion and control and finish one of main circuit that equipotential is connected.
The invention has the advantages that:
1, the design of this complete online battery pack testing apparatus and application, voltage with online communication backup battery group two ends is the input service power supply of testing apparatus, satisfy accumulator cell charging and discharging characteristic, related communication power supply operation maintenance norm standard and battery pack maintenance test requirement, discharge examination is complete online and safeguarded the charge and discharge energy-saving safe of online communication battery pack.
2, the design of this charge and discharge test equipment for full on-line storage battery pack system and application have online battery pack to communication facilities load energy-saving safe discharging function and on-line intelligence load constant-current discharge function.Satisfy simultaneously under the situation of online various different communication machine utilization electric currents, the constant-current discharge volume test that all can realize online battery pack is applicable to that the different various communication facilitiess of the existing network power supply backup battery groups of loading carry out online constant-current discharge and test.
3, the design of this charge and discharge test equipment for full on-line storage battery pack system and application not only possess online battery pack constant-current discharge test function, also have constant-current charge and voltage stabilizing current-limiting charge maintenance function to online battery pack simultaneously.
4, charge and discharge test equipment for full on-line storage battery pack possesses online communication device energy conservation discharge and online load discharge function simultaneously, and the positive-negative power polar switching controls online charge-discharge test function, and comprehensive strong, usable range is extensive.
5, charge and discharge test equipment for full on-line storage battery pack satisfies the online constant current charge-discharge test of communication storage battery group of online different positive-negative powers, intelligent degree height, and function is strong, uses flexible safety.
6, pass through seamless link technology, be connected in series with tested electric battery, guarantee that tested battery pack is in safe presence all the time, do not influence normal safe power supply, realize that tested battery pack is online to actual load discharge and on-line intelligence load discharge with the discharge parameter of testing apparatus setting communication system equipment.
7, when online communication equipment actual load, when satisfying tested battery pack constant-current discharge, this device systems is closed online intelligent load discharge automatically; When online communication equipment actual load does not satisfy tested battery pack constant-current discharge, this device systems will be controlled online intelligent load constant-current discharge automatically, realize the online constant-current discharge volume test of tested battery pack purpose.
8, finish after the discharge capacity test, carry out online current-limiting charge, constant-current charge and voltage stabilizing current-limiting charge by online rectifier output power supply by the automatic control of this testing apparatus, and finish online equipotential safety connection, automatically tested battery pack is returned to former online normal safe work state.
9, use intelligent fictitious load to carry out the off-line test contrast with tradition, solved off-line discharge operation, power supply effectively and recovered online overall process maintenance test security hidden trouble, had energy-conservation, easy to operate and safe, online power supply safety, end of test (EOT) and carry out advantages such as online charging and the connection of recovery equipotential automatically.
10, with advanced online " battery pack discharge test device " contrast, and have energy-conservation discharge test function of battery pack safety on line and an online constant current intelligent load discharge test function, satisfy the battery pack constant-current discharge test of the various communication facilities load of existing network, practical more, and possess the energy-conservation charge and discharge maintenance test function of safety on line.
11, online detection of cell and alarm defencive function adopt wireless voltage test and management system of monomer or the wired voltage tester management system of monomer in " equipment " circuit design, safeguard that detecting operation is easy, improve system maintenance work safety.
12, the output that charges and discharge instrumentation system of this complete online battery pack has voltage stabilizing current limliting, current stabilization pressure limiting control defencive function; and output excess current, overvoltage protection and overvoltage shutdown defencive function, possess online discharge capacity detection of communication backup battery group and safe power supply protection characteristics.
13, this complete online battery pack instrumentation system possesses attended operation, parameter is provided with simply, intelligent degree height, characteristics such as defencive function is strong, this complete online battery power discharge test macro operation interface close friend, operate according to system prompt, can finish the online battery capacity of communication and detect, and preserve data automatically, so that maintenance analysis and management;
14, the control system of this complete online battery power discharge test macro MCU unit is provided with one the tunnel and exchanges backup battery, so that consult, read, copy test data in good time, and the historical events record;
15, the control system of the MCU unit of this complete online battery power discharge test macro output has standard data interface, and USB interface and IP network interface, and is flexible and convenient to use.
[description of drawings]
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the theory structure block diagram of charge and discharge test equipment for full on-line storage battery pack embodiment one of the present invention.
Fig. 2 is the theory structure block diagram of charge and discharge test equipment for full on-line storage battery pack embodiment two of the present invention.
Fig. 3 is embodiment one or embodiment two and-48V power supply system for communications seamless link operation chart.
Fig. 4 and Fig. 5 are embodiment one or embodiment two and-the discharge of the 48V power supply system for communications, charging catenation principle synoptic diagram.
Fig. 6 and Fig. 7 are embodiment one or embodiment two and+the discharge of the 24V power supply system for communications, charging catenation principle synoptic diagram.
Fig. 8 is that embodiment one is applied to-theory structure block diagram during the 48V power supply system for communications under the online discharge condition, wherein omits the control module part.
Fig. 9 is that embodiment one is applied to-theory structure block diagram during the 48V power supply system for communications under the online charged state, wherein omits the control module part.
Figure 10 is that embodiment two is applied to-theory structure block diagram during the 48V power supply system for communications under the online discharge condition, wherein omits the control module part.
Figure 11 is that embodiment two is applied to-theory structure block diagram during the 48V power supply system for communications under the online charged state, wherein omits the control module part.
[embodiment]
Charge and discharge test equipment for full on-line storage battery pack of the present invention is to be applied to a kind of complete online battery pack device systems, and described complete online battery pack device systems also comprises a tested battery pack and a communication facilities usually.This communication facilities is by the power supply power supply in support of this battery pack.
Now for following 2 embodiment, and its principle of work is described.
Embodiment one
See also shown in Figure 1; the charge and discharge test equipment for full on-line storage battery pack of present embodiment; comprise a DC-DC host work power supply 1; one control module 2; one safety protective circuit 3, an automatic current limiting charging are connected safety control circuit 4, a constant-current discharge load intelligence control circuit 5, a discharge load circuit 6, a DC-DC transducer 12 with equipotential, and each circuit module such as a positive-negative polarity switch 11, second safety protective circuit 10.Described control module 2 further comprises a MCU unit 21 and a current/voltage data acquisition that all is connected with this MCU unit 21 and conversion control circuit 22, battery pack monomer voltage checkout equipment 23, data-carrier store 24, telecommunication circuit 25 again, LCD shows and keyboard input 26.
Described safety protective circuit 3, automatic current limiting charging are connected safety control circuit 4 with equipotential, DC-DC transducer 12 is connected with each other, and described constant-current discharge load intelligence control circuit 5 and discharge load circuit 6 are connected in series mutually.
The input of described positive-negative polarity switch 11 is connected to safety protective circuit 3, automatic current limiting charging and is connected safety control circuit 4, DC-DC transducer 12 with equipotential, exports and connect second safety protective circuit 10.
The output of DC-DC host work power supply 1 is connected with described constant-current discharge load intelligence control circuit 5, described control module 2 in the described equipment;
Described DC-DC transducer 12 is connected with described current/voltage data acquisition and conversion control circuit 22 and MCU unit respectively; MCU unit 2 also is connected safety control circuit 4 with described constant-current discharge load intelligence control circuit 5, automatic current limiting charging respectively and connects with equipotential;
Tested battery pack DC-DC transducer 12 in parallel, and the input of constant-current discharge load intelligence control circuit 5, DC-DC host work power supply 1 provide main frame operate as normal power supply.
The function of above-mentioned each circuit module is expressed as follows:
Described DC-DC host work power supply 1: for described constant-current discharge load intelligence control circuit 5, described control module 2 provide working power;
Described control module 2: this circuit module is a control model with the system program directive of MCU unit 21, is connected safety control circuit 4 with equipotential with control constant-current discharge load intelligence control circuit 5, automatic current limiting charging;
Described safety protective circuit 3: can be a heavy-duty diode, its two ends are connected in series between the DC distributor of communication storage battery group and power supply system for communications equipment through positive-negative polarity switch 11, guarantee that tested battery pack is in safe presence all the time, does not influence the normal safe power supply to communication system equipment;
Described automatic current limiting charging is connected safety control circuit 4 with equipotential: after finishing tested battery pack discharge test end, carry out online current-limiting charge automatically, and carry out the connection of equipotential safety and recover tested battery pack to online operate as normal;
Described constant-current discharge load intelligence control circuit 5:, finish control and test that tested battery pack is carried out online fictitious load constant-current discharge automatically according to the parameter that is provided with of discharge equipment system;
Described discharge load circuit 6: the operating circuit that allows to pass through the discharge load electric current by the tested battery pack of constant-current discharge load intelligence control circuit 5 controls;
Described second safety protective circuit 10: comprise that a great power bidirectional power supply static switch pipe, a direct current contactor and are used to control and protect the automatic protection circuit (all not shown) of this great power bidirectional power supply static switch pipe and D.C. contactor work, and described great power bidirectional power supply static switch pipe and D.C. contactor are connected in parallel.This second safety protective circuit 10 guarantees all can the uninterrupted safe power supply of real-time online in tested battery charging or the discharge test process.Simultaneously also be to finish to discharge and recharge conversion and control and finish one of main circuit that equipotential is connected.
Described positive-negative polarity switch 11:, be applicable to charging, the discharge test control transformation of the positive and negative different online battery pack of communication power supply for connecting the selective switchgear of positive and negative working power polarity.
Described DC-DC transducer 12: be a hf switching power supply, its output voltage, electric current have constant current pressure limiting, voltage stabilizing current limliting, the automatic protection function of high reliability such as superpotential, excess current, short circuit simultaneously for adjustable continuously.
Present embodiment also can comprise an AC/DC Switching Power Supply 7 and a current detection circuit 8, the input and output of this AC/DC Switching Power Supply 7 connect described DC-DC host work power supply 1 and civil power respectively, in order to civil power is introduced with the interchange input power supply as host power supply; Described current detection circuit 8 can be a sensor, described current detection circuit 8 connects each terminals of described charge and discharge test equipment for full on-line storage battery pack, detects charging, the discharge current of online tested battery pack for charge and discharge test equipment for full on-line storage battery pack.
Refer again to Fig. 1, it is easy to connect when the charge and discharge test equipment for full on-line storage battery pack of present embodiment is used, two input ends of described discharge load circuit 6, constant-current discharge load intelligence control circuit 5, DC-DC host work power supply 1 are drawn a power supply output line respectively, make it to have the first connection terminal A and the second connection terminal B.Again on the output two ends common point of the power positive cathode switch 11 that will and connect and second safety protective circuit 10; draw a power supply output line respectively; have two terminals; one of them terminals is the 3rd connection terminal D; another terminals are connected with the second connection terminal B through current detecting 8 in equipment, and its output keeps being connected in series with online battery pack.The first connection terminal A, the second connection terminal B and the 3rd connection terminal D are connected with current/voltage data acquisition and conversion control circuit 22 simultaneously.Described first connection terminal A end connects the work online negative pole or the positive pole of power supply, or connects tested battery pack side joint the work online negative pole or the positive terminal of power supply; Described second connection terminal B end is connected to the negative or positive electrode connection terminal that tested online battery pack side connects online power work ground; Described the 3rd terminal D end is for the negative or positive electrode that is connected to the working earthing of power supply system for communications dc power supply compiles row (power work ground).
In the present embodiment, selectively, described DC-DC transducer 12, DC-DC host work power supply 1, described constant-current discharge load intelligence control circuit 5 all have the characteristics of forward and reverse polarity power work.Can realize mode of operation, be applicable to the charge and discharge maintenance test of the online battery pack of communication power supply that difference is positive and negative with best safety.No matter working power is positive pole or minus earth, when this equipment carries out the on-line maintenance test, the power work earth terminal that only needs operation battery pack side to connect, the risk of having avoided operation to bump ground short circuit, and have online battery pack constant current pressure limiting charging and voltage stabilizing current-limiting charge maintenance function, maintenance test is used more flexible, safe and simple.
Embodiment two
See also Fig. 2; present embodiment two is compared with embodiment one; the difference of the two is: the charge and discharge test equipment for full on-line storage battery pack of present embodiment two also comprises the forward and reverse polarity work of power supply holding circuit 9; the output of the forward and reverse polarity work of this power supply holding circuit 9 is with after described constant-current discharge load intelligence control circuit 5 and discharge load circuit 6 are connected in series; serial connection is to DC-DC transducer 12, DC-DC host work power supply 1 parallel with one another again, and all the other structures are all identical with embodiment one.
Illustrate: the forward and reverse polarity work of the input power supply holding circuit function that is distributed in described DC-DC transducer 12, constant-current discharge load intelligence control circuit 5 and DC-DC host work power supply 1 among the embodiment one, and embodiment two will supply with DC-DC transducer 12, constant-current discharge load intelligence control circuit 5 and 1 three functional modules of DC-DC host work power supply by the output of the forward and reverse polarity work of power supply holding circuit 9.Therefore, above-mentioned two embodiment have identical functions.
Draw a power supply output line on the forward and reverse polarity work of the power supply holding circuit that input connects, have the first connection terminal A, and the second connection terminal B.And on the output two ends common point of the power positive cathode switch 11 that connects and second safety protective circuit 10; draw a power supply output line respectively; have two terminals; one of them terminals is the 3rd connection terminal D; another terminals are connected with the second connection terminal B through current detecting 1 in equipment, and its output keeps being connected in series with online battery pack.The first connection terminal A, the second connection terminal B and the 3rd connection terminal D are connected with current/voltage data acquisition and conversion control circuit 22 simultaneously.Described first connection terminal A end connects the work online negative pole or the positive pole of power supply, or connects tested battery pack side joint the work online negative pole or the positive terminal of power supply; Described second connection terminal B end is connected to the negative or positive electrode connection terminal that tested online battery pack side connects online power work ground; Described the 3rd terminal D end, the negative or positive electrode that is connected to the working earthing of power supply system for communications dc power supply compiles row (power work ground).
Please main reference Fig. 3, below with-the online discharge capacity test job of 48V communication power supply backup battery group principle is an example, and the application principle of work of the charge and discharge test equipment for full on-line storage battery pack of above-mentioned two embodiment is described.
Extremely shown in Figure 7 as Fig. 3, the existing communication machine room is commonly used-48V or+theory diagram that the communication power supply backup battery group of 24V is powered to communication facilities, one 48V or+24V rectifier and one-48V or+after the 24VDC DC distributor is connected again with battery pack and connect, communication facilities is provided by providing of back-up source.
During use, charge and discharge test equipment for full on-line storage battery pack is connected in series between the DC distributor of communication storage battery group and power supply system for communications equipment by " equipment " seamless link technology, guarantee that battery pack is in the state that works online safely all the time, does not influence the normal safe power supply to communication system equipment.The input service power supply of charge and discharge test equipment for full on-line storage battery pack is provided by tested battery pack power supply.In the operating process, battery pack is only torn positive battery terminal (power work ground wire) open, promptly and the positive pole of rectifier power supply power supply compile between line and be connected in series safety simple to operate.
The complete online seamless link operation of the battery pack equipment of the operating process power supply system for communications as described below of online seamless link technology, charge and discharge test equipment for full on-line storage battery pack is connected in series the positive pole (power work ground wire) of online battery pack, promptly and the positive pole of rectifier power supply power supply compile between line and be connected in series, the access of charge and discharge test equipment for full on-line storage battery pack should observe " connect three earlier; after tear one open " principle, the battery power discharge testing apparatus is finished test and is withdrawed from when serving, should observe the principle of " connect earlier, then tear three open ".
See also Fig. 3 to Fig. 5 again, now with-the tested battery pack of 48V communication power supply is an example, at this moment, the mode of connection of above-mentioned three embodiment is all identical, all adopt " connect three earlier; after tear one open ", be: the power supply output line L1 that connects charge and discharge test equipment for full on-line storage battery pack earlier, L2, L3, be about to three connection terminal B of this testing apparatus, A, D is connected to battery pack positive pole (being the connection terminal that battery pack side connects power work ground) connection terminal respectively, negative terminals or DC distributor output one along separate routes A1 and-48V communication power supply power supply positive pole compiles row GD, after tear the former electric power connection line L5 of tested battery pack positive terminal open, promptly disconnect battery pack positive terminal with-arrange being connected of GD anodal compiling of 48V communication power supply power supply; " connect one earlier; after tear three open " be: tested battery pack is finished test, and carry out current-limiting charge automatically and withdraw from service from being dynamically connected to equipotential, should meet the former electric power connection line L5 of tested battery pack positive terminal C1 earlier, after tear C1 end power lead L1, A1 end power lead L2 and GD end power lead L3 open.
Please refer to Fig. 6 and Fig. 7, its be with+24V communication power supply backup battery group is an example, its adopt " connect three earlier; after tear one open " the order of connection and the-tested battery pack of 48V communication power supply identical, but polarity difference, be in particular in: the described first connection terminal A connects the positive pole of tested battery pack, the second connection terminal B connects the negative pole of this tested battery pack, the 3rd connection terminal D connects+and the negative pole of 24V power supply system for communications dc power supply working earthing compiles row (power work ground), it connects the opposite of power positive cathode and-48V, discharge test working current direction is also opposite, but its online discharge capacity test job principle is identical.
As shown in Figure 8, the embodiment of the invention one be applied to-online discharge principle during the 48V power supply system for communications is as described below:
Selecting wherein, the tested battery pack I of one group-48V carries out online capacity discharge test, tested battery pack I as shown in Figure 4 carries out online discharge capacity test, tested battery pack employing seamless link does not influence the normal power supply to communication facilities, according to the test parameter setting, with I
Discharge 1Electric current carries out the constant-current discharge test of online capacity, the constant-current discharge electric current I of carrying out greater than tested battery pack I when online communication apparatus of load electric current and the battery pack floating current sum (I equipment+I floating current) that works online
Discharge 1The time, charge and discharge test equipment for full on-line storage battery pack control DC-DC transducer is with automatic steady current control output voltage U
O, improve the voltage U that works online
On-Line Voltage=U
E1+ U
0, it is online to communication facilities load constant-current discharge test job requirement to satisfy tested battery pack I, forbids automatically or closes the power supply of constant-current discharge load intelligence control circuit to the discharge load circuit, keeps steady current to the online communication apparatus of load I that discharges
Discharge 1=I
The B1 discharge=I
The D+1+I input=I
D+1+ I
A=I
Discharge D+ I
Constant Current Load+ I
DC-DC+ I
Industry control(I
The B1 dischargeBe the total current of tested battery pack I serial connection charge and discharge test equipment for full on-line storage battery pack input service, be the discharge current of tested battery pack I; I
Be input asCharge and discharge test equipment for full on-line storage battery pack input service electric current, I
Discharge DFor tested battery pack I to communication facilities electric electric current, I
Floating chargeBe other battery pack floating charge working currents that works online, I
Industry controlBe the working current that the charge and discharge test equipment for full on-line storage battery pack control module provides, I
D+1Electric current for DC-DC transducer output services, IA is the working current sum that tested battery pack I provides the input power supply for DC-DC transducer (high frequency switch power), DC-DC host work power supply and constant-current discharge load intelligence control circuit and battery power discharge load circuit, and equals I
Input), at this moment, I
Constant Current Load=0, I
A=I
Constant Current Load+ I
DC-DC+ I
Industry control=I
DC-DC+ I
Industry control), online communication equipment work electric current I
Equipment=I
Rectifier+ I
Discharge D-I
Floating Fill, rectifier or high frequency switch power output current I
RectifierLess than communication facilities loaded work piece electric current I
EquipmentUnder normal operation, its-48V rectifier or HF switch output current I
RectifierBe communication facilities loaded work piece electric current I
Equipment, tested battery pack I discharge current I
Discharge DWith the battery pack floating current I that works online
Floating chargeSum.Discharge process, the voltage of tested battery pack I are along with the prolongation of discharge current and time, and battery voltage also descends thereupon, adjust output voltage U by the control of charge and discharge test equipment for full on-line storage battery pack automatic steady current
O, promote the voltage that works online, make it to keep tested battery pack I to carry out the capacity discharge test with constant electric current; The constant-current discharge electric current I of carrying out less than tested battery pack I when online communication apparatus of load electric current and the battery pack floating current sum (I equipment+I floating current) that works online is discharged 1 the time, the preferential control automatically DC-DC of charge and discharge test equipment for full on-line storage battery pack system transducer is with automatic steady current pressure limiting control output voltage U
O, improve the stable voltage U of online output
On-Line Voltage=U
Battery Group 1+ U
0Satisfy that tested battery pack I is online preferentially to carry out constant current power supply to the communication facilities load; simultaneously according to actual online communication apparatus of load pressure limiting current stabilization numerical value; automatically open auxiliary constant-current discharge load intelligence control circuit; make tested battery pack I power supply through power supply forward and reverse polarity work holding circuit and constant-current discharge load intelligence control circuit to the discharge load circuit supply; and the working current of automatic control and adjustment discharge load circuit, make the online constant-current discharge of tested battery pack I.At this moment, tested battery pack I is to the auxiliary constant-current discharge load of the control of online communication apparatus of load and the charge and discharge test equipment for full on-line storage battery pack I that discharges
Discharge 1=I
The B1 discharge=I
D+1+ I
Input=I
D+1+ I
A=I
Discharge D+ I
Constant Current Load+ I
DC-DC+ I
Industry control, online communication equipment work electric current I
Equipment=I
Discharge D-I
Floating chargeAt this moment, the rectifier of operate as normal or high frequency switch power output current I
RectifierLess than communication facilities loaded work piece electric current I
EquipmentWith tested battery pack I discharge current I
Discharge 1, and no current output.Under normal operation, its-48V rectifier or HF switch output current I
RectifierBe communication facilities loaded work piece electric current I
Load, tested battery pack I discharge current I
Discharge DWith other online battery pack floating current I
Floating chargeSum.Discharge process, the voltage of tested battery pack I are along with the prolongation of discharge current and time, and battery voltage also descends thereupon, adjust output voltage U by the control of charge and discharge test equipment for full on-line storage battery pack automatic steady current
O, promote the voltage that works online, keep tested battery pack I to carry out the discharge capacity test in a word with constant electric current.The defencive function that carries out the charge and discharge test equipment for full on-line storage battery pack of discharge test has: equipment on-Line Voltage voltage-limiting protection, overvoltage protection; tested battery pack discharge low-voltage variation, cell discharge off low-voltage variation, and battery discharge work current limliting and overcurrent protection.Concrete parameter setting; the user can set according to actual testing requirement; for avoiding customer parameter that Problem-Error is set; the charge and discharge test equipment for full on-line storage battery pack system has the parameter higher limit safety protection function is set, and is safe in utilization to guarantee the operation of charge and discharge test equipment for full on-line storage battery pack system.
After online discharge finishes, be charged to equipotential automatically and recover to work online catenation principle as shown in Figure 9:
When the online discharge test of tested battery pack I finished, the charge and discharge test equipment for full on-line storage battery pack system controlled DC-DC transducer, constant-current discharge load intelligence control circuit and discharge load circuit automatically and is in closed condition (tested accumulator battery voltage U at this moment,
E1Be lower than the power source voltage U that works online
On-Line Voltage, I
Constant Current LoadAnd I
DC-DCWorking current is tending towards 0.), this device systems is controlled the automatic current limiting charging automatically and is connected safety control circuit with equipotential and enters charging rejuvenation simultaneously.The principle of initial this current-limiting charge process is identical with the current-limiting charge process that discharging test device for full online storage battery discharges after finishing, and is in the constant-current charge state substantially.When the voltage U that works online
On-Line Voltage, charging current; can not satisfy tested battery pack charges normal when requiring; charge and discharge test equipment for full on-line storage battery pack detects control second safety protective circuit and the output of positive-negative polarity switch automatically according to system; and the output of DC-DC transducer; make tested battery pack become the current-limiting charge state and be voltage stabilizing current-limiting charge state; and close the automatic current limiting charging and be connected automatic current limiting charging circuit in the safety control circuit with equipotential, the output of controlling the DC-DC transducer is automatically connected with on-Line Voltage and is promoted the charging voltage U of tested battery pack
E1=U
On-Line Voltage+ U
O, and carry out current stabilization pressure limiting and voltage stabilizing current-limiting charge.At this moment ,-48V rectifier or switch power supply output current I
Rectifier=I
Equipment+ I
Charging D+ I
Floating charge, tested battery pack I charging current I
The B1 charging=I
Charging D-I input=I
Charging D-(I
DC-DC+ I industry control).Prolongation along with the current stabilization duration of charging, tested battery pack I voltage also increases, when reaching, tested battery pack I voltage charging is set during voltage limiting value, the charge and discharge test equipment for full on-line storage battery pack system controls the output of DC-DC transducer automatically and carries out the voltage stabilizing current-limiting charge, carries out intelligent diagnostics by this device systems by monitoring battery charge, voltage, capacity etc. simultaneously and whether finishes battery charge; When finishing battery charge; this device systems will be closed the end of output charging of DC-DC transducer automatically; finish online power supply and the connection of equipotential safety by second safety protective circuit simultaneously; and then system finishes the switching of positive-negative polarity switch automatically; keep online power supply and equipotential safety connection status, recover to work online overall process.System works finishes.
In the foregoing discharge course of work, tested battery pack I safety on line power supply is by safety protective circuit 3 and the 10 dual power supply safeguard protections of second safety protective circuit; And in charging process; if civil power takes place to interrupt or rectifier (high frequency switch power equipment) fault; cause other online battery pack to be discharged to the phenomenon of online low pressure; great power bidirectional power supply static switch pipe forward conduction in second safety protective circuit 10 is connected in the power supply that works online thus; and carry out the connection of equipotential safety and protect; automatically close simultaneously the output of DC-DC transducer 12, guaranteeing all can the uninterrupted safe power supply of real-time online in the tested battery pack I charge or discharge test process.
Illustrate: embodiment one is applied to+during the 24V power supply system for communications, and the principle under its online discharge and the charged state can be applied to reference to embodiment one-situation during the 48V power supply system for communications.The difference of the two is that discharge is opposite with charging measurement working current direction.
Again as shown in Figure 10 and Figure 11, be that embodiment two is applied to-theory structure block diagram during the 48V power supply system for communications under online discharge and the charged state, this embodiment two is applied to-situation during the 48V power supply system for communications, can be applied to reference to embodiment one-situation during the 48V power supply system for communications, the two is basic identical, repeats no more herein.
In sum, charge and discharge test equipment for full on-line storage battery pack all is applicable to the battery pack charge and discharge maintenance test of positive and negative communication work power-supply device, and its first connection terminal A by tested battery pack connection charge and discharge test equipment for full on-line storage battery pack (battery pack work online power end negative pole or positive pole) and the second connection terminal B (former battery pack work online power ground end negative or positive electrode) two input terminals are as the working power of the online charge/discharge test device of electric battery.Its 3rd connection terminal D (online power work earth terminal negative or positive electrode) is serially connected in the negative or positive electrode place of working that is connected in communication power supply device systems DC distributor between tested battery pack and the online communication equipment work power supply as lead-out terminal and compiles row GD (promptly connecing power work ground).Menu selection, function and parameter setting according to charge and discharge test equipment for full on-line storage battery pack MCU unit, system controls the positive-negative polarity switch automatically and changes its output voltage (i.e. the second and the 3rd connection terminal B, D both end voltage), series system with tested battery pack, change is charged as discharge and becomes discharge is that the function of charging is changed, thereby realizes the complete online battery pack charge-discharge test purpose of electric battery.
Claims (8)
1. charge and discharge test equipment for full on-line storage battery pack is characterized in that: comprising:
One DC-DC host work power supply, one control module, one positive-negative polarity switch, second safety protective circuit, a safety protective circuit connected with each other, an automatic current limiting charging are connected safety control circuit, a DC-DC transducer with equipotential, and the constant-current discharge load intelligence control circuit and the discharge load circuit that are connected in series mutually;
Described positive-negative polarity switch input is connected to safety protective circuit, automatic current limiting charging and is connected safety control circuit, DC-DC transducer with equipotential, exports and connect second safety protective circuit;
Described control module further comprises a MCU unit and a current/voltage data acquisition that all is connected with this MCU unit and conversion control circuit, battery pack monomer voltage checkout equipment, data-carrier store, telecommunication circuit again, LCD shows and the keyboard input;
The output of DC-DC host work power supply is connected with described constant-current discharge load intelligence control circuit, control module in the described equipment;
Described DC-DC transducer is connected with described current/voltage data acquisition and conversion control circuit and MCU unit respectively;
The MCU unit also is connected circuit such as safety control circuit, DC-DC transducer, second safety protective circuit and positive-negative polarity switch and is connected with described constant-current discharge load intelligence control circuit, automatic current limiting charging respectively with equipotential;
Tested battery pack DC-DC transducer in parallel, and the input of constant-current discharge load intelligence control circuit, DC-DC host work power supply provide main frame operate as normal power supply.
2. charge and discharge test equipment for full on-line storage battery pack as claimed in claim 1; it is characterized in that: also comprise the forward and reverse polarity work of power supply holding circuit; the output of the forward and reverse polarity work of this power supply holding circuit respectively with described constant-current discharge load intelligence control circuit, and DC-DC transducer parallel with one another, DC-DC host work power supply connect.
3. charge and discharge test equipment for full on-line storage battery pack as claimed in claim 1 is characterized in that: described DC-DC transducer, DC-DC host work power supply, described constant-current discharge load intelligence control circuit all have the characteristics of forward and reverse polarity power work.
4. charge and discharge test equipment for full on-line storage battery pack as claimed in claim 1 or 2, it is characterized in that: also comprise an AC/DC Switching Power Supply, described host work power supply is the DC-DC power supply, and the input and output of this AC/DC Switching Power Supply connect described host work power supply and civil power respectively.
5. charge and discharge test equipment for full on-line storage battery pack as claimed in claim 3, it is characterized in that: also comprise a current detection circuit, described current detection circuit is coupled in this equipment and monitors an input end that discharges and recharges working power of described tested battery pack.
6. charge and discharge test equipment for full on-line storage battery pack as claimed in claim 5 is characterized in that: described current detection circuit is a sensor.
7. charge and discharge test equipment for full on-line storage battery pack as claimed in claim 1 is characterized in that: described safety protective circuit is a heavy-duty diode.
8. charge and discharge test equipment for full on-line storage battery pack as claimed in claim 1; it is characterized in that: described second safety protective circuit comprises that a great power bidirectional power supply static switch pipe, a direct current contactor and are used to control and protect the automatic protection circuit of this great power bidirectional power supply static switch pipe and D.C. contactor work, and described great power bidirectional power supply static switch pipe and D.C. contactor are connected in parallel.
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| CN102638075A (en) * | 2012-04-05 | 2012-08-15 | 吉林市江机民科实业有限公司 | Direct-current electric energy transfer device |
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| CN104333059A (en) * | 2014-10-06 | 2015-02-04 | 西安煜邦电子科技有限公司 | Intelligent maintenance system and method for communication base station standby power supply |
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| CN108258771A (en) * | 2018-02-09 | 2018-07-06 | 广州泓泉能源科技有限公司 | A kind of online intelligent accummulator core holds straight-flow system |
| CN108490368A (en) * | 2018-07-02 | 2018-09-04 | 桂林电子科技大学 | A kind of charging and discharging lithium battery test device and method |
| CN109742816A (en) * | 2018-12-04 | 2019-05-10 | 湖南鑫和美新能源科技有限公司 | A kind of rechargeable battery parallel charge-discharge equipment |
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| CN109560583B (en) * | 2018-12-04 | 2020-12-29 | 湖南鑫和美新能源科技有限公司 | Chargeable battery series charging and discharging equipment |
| CN110398696A (en) * | 2019-07-19 | 2019-11-01 | 邵阳市新时空数码科技有限公司 | Electric energy storage device cycle charge-discharge experimental rig |
| CN110908360A (en) * | 2019-11-25 | 2020-03-24 | 国网四川省电力公司广安供电公司 | Communication power supply monitoring system and high-frequency switching power supply charging module self-checking method |
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