CN101813755B - 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 PDF

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Publication number
CN101813755B
CN101813755B CN 201010162531 CN201010162531A CN101813755B CN 101813755 B CN101813755 B CN 101813755B CN 201010162531 CN201010162531 CN 201010162531 CN 201010162531 A CN201010162531 A CN 201010162531A CN 101813755 B CN101813755 B CN 101813755B
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CN
China
Prior art keywords
battery pack
power supply
circuit
discharge
current
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CN 201010162531
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Chinese (zh)
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CN101813755A (en
Inventor
石卫涛
林明星
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福州福光电子有限公司
石卫涛
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Priority to CN 201010162531 priority Critical patent/CN101813755B/en
Publication of CN101813755A publication Critical patent/CN101813755A/en
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Publication of CN101813755B publication Critical patent/CN101813755B/en

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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. Nomatter 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

Charge and discharge test equipment for full on-line storage battery pack
[technical field]
The present invention relates to power-source maintenance equipment in 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 large, maintenance work labour intensity is high, cost is high, 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 batteries is not understood, emergency guarantee power supply duration is unclear, often can not effectively carry out the emergency power generation management and running because of commercial power interruption, often cause the generation of wireless base station communication disruption accident, accumulator is scrapped in advance, 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 batteries, automatically completed 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, extend 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 main technical matters that the present invention will solve, be to provide a kind of can use in complete online comprehensive storage battery equipment system charge and discharge test equipment for full on-line storage battery pack simultaneously 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.
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, the second safety protective circuit, one first 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 mutually are connected in series, described positive-negative polarity switch input is connected to the first safety protective circuit, the automatic current limiting charging is connected safety control circuit with equipotential, the DC-DC transducer, export and connect the second safety protective circuit, described control module further comprises a MCU unit and the current/voltage data acquisition and conversion control circuit, battery pack monomer voltage checkout equipment, data-carrier store, the telecommunication circuit that all are connected with this MCU unit again, LCD shows and the keyboard input, in described equipment, 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, 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 series circuit of constant-current discharge load intelligence control circuit and discharge load circuit.The input of tested battery pack DC-DC host work in parallel power supply provides main frame normal operation power supply.
Better; technique scheme also comprises the forward and reverse polarity work of a 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.
Better, 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 of this AC/DC Switching Power Supply is connected to civil power, and output connects described host work power supply.
Better, 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, is charging, the discharge current that charge and discharge test equipment for full on-line storage battery pack detects online tested battery pack.
Better; described the first 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 affect the normal safe power supply to communication system equipment.
Described the second safety protective circuit comprises that a great power bidirectional power supply static switch pipe, a direct current contactor and one are used for the automatic protection circuit of this great power bidirectional power supply static switch pipe of control and protection 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 real-time online uninterrupted power supply in tested battery charging or discharge test process.Simultaneously be also to complete to discharge and recharge conversion and control and one of main circuit of being connected the equipotential connection.
The invention has the advantages that:
1, design and the application of this complete online battery pack testing apparatus, input service power supply take the voltage at online communication backup batteries two ends as 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, design and the application of this charge and discharge test equipment for full on-line storage battery pack system, have online battery pack communication facilities load energy-saving safe discharging function and on-line intelligence load constant banished Electricity Functional.Satisfy simultaneously in the situation of online various different communication machine utilization electric currents, all can realize the constant-current discharge volume test of online battery pack.Be applicable to the different various communication facilities load power supply backup batteries of existing network and carry out online constant-current discharge test.
3, design and the application of this charge and discharge test equipment for full on-line storage battery pack system, not only possess online battery pack constant-current discharge test function, also has simultaneously constant-current charge and voltage stabilizing current-limiting charge maintenance function to online battery pack.
4, charge and discharge test equipment for full on-line storage battery pack possesses the discharge of online communication device energy conservation and online load discharge function simultaneously, and the online charge-discharge test function of positive-negative power polarity conversion and control, 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, and intelligent degree is high, 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 affect the normal safe power supply to communication system equipment, realize that the discharge parameter that tested battery pack is set with testing apparatus discharges and the on-line intelligence load discharge to actual load online.
7, when online communication equipment actual load, when satisfying tested battery pack constant-current discharge, this device systems autoshutdown on-line intelligence load discharge; 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, complete discharge capacity test after, automatically controlled by this testing apparatus by online rectifier output power supply and carry out online current-limiting charge, constant-current charge and voltage stabilizing current-limiting charge, and complete online equipotential and connect safely, 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, effectively solved off-line discharge operation, power supply and recovered online overall process maintenance test security hidden trouble, had energy-conservation, easy to operate and safe, online power supply safety, test finishes automatically to charge online and recover the advantage such as equipotential connection.
10, online " the battery pack discharge test device " with the advanced person contrasts, and has a battery pack constant-current discharge test that the energy-conservation discharge test function of battery pack safety on line and online constant current intelligent load discharge test function satisfy the various communication facilities load of existing network, more practical, and possess the energy-conservation charge and discharge maintenance test function of safety on line.
11, cell detects and the alarm defencive function online, adopts the wireless voltage test and management system of monomer or the wired voltage tester management system of monomer in " equipment " circuit design, safeguards that detection is easy and simple to handle, improves system maintenance work safety.
12, the output that charges and discharge instrumentation system of this complete online battery pack has the voltage stabilizing current limliting, defencive function is controlled in the current stabilization pressure limiting; and output excess current, overvoltage protection and overvoltage shutdown defencive function, possess the 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 arranges simply, intelligent degree is high, the characteristics such as defencive function is strong, this complete online battery power discharge test macro operation interface is friendly, operate according to system prompt, can complete the online battery capacity of communication and detect, and automatic save data, so that maintenance analysis and management;
14, the set-up of control system one tunnel of this complete online battery power discharge test macro MCU unit exchanges backup battery, in order to 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 schematic 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 schematic diagram.
Fig. 8 is that embodiment one is applied to-theory structure block diagram during the 48V power supply system for communications under 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 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 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 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 storage battery equipment system, and described complete online storage battery equipment system also comprises tested battery pack and a communication facilities usually.This communication facilities is by this battery pack Power supply in support.
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 the 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, the second safety protective circuit 10.Described control module 2 further comprises a MCU unit 21 and the current/voltage data acquisition and conversion control circuit 22, battery pack monomer voltage checkout equipment 23, data-carrier store 24, the telecommunication circuit 25 that all are connected with this MCU unit 21 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 the second safety protective circuit 10.
In described equipment, 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;
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 series circuit of constant-current discharge load intelligence control circuit 5 and discharge load circuit 6, the input of tested battery pack DC-DC host work in parallel power supply 1 provides main frame normal operation 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 take the MCU unit 21 system program directive as control model, with control constant-current discharge load intelligence control circuit 5, the automatic current limiting charging is connected safety control circuit 4 with equipotential;
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 affect the normal safe power supply to communication system equipment;
Described automatic current limiting charging is connected safety control circuit 4 with equipotential: after completing tested battery pack discharge test and finishing, automatically carry out online current-limiting charge, and carry out equipotential and connect safely and recover tested battery pack to online normal operation;
Described constant-current discharge load intelligence control circuit 5: according to the parameters of discharge equipment system, automatically complete control and test that tested battery pack is carried out online fictitious load constant-current discharge;
Described discharge load circuit 6: control the operating circuit that tested battery pack allows to pass through the discharge load electric current by constant-current discharge load intelligence control circuit 5;
Described the second safety protective circuit 10: comprise that a great power bidirectional power supply static switch pipe, a direct current contactor and one are used for the automatic protection circuit (all not shown) of this great power bidirectional power supply static switch pipe of control and protection 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 real-time online uninterrupted power supply in tested battery charging or discharge test process.Simultaneously be also to complete to discharge and recharge conversion and control and one of main circuit of being connected the equipotential connection.
Described positive-negative polarity switch 11: for connecting the selective switchgear of positive and negative working power polarity, the charging, the discharge test that are applicable to the positive and negative different online battery pack of communication power supply are controlled conversion.
Described DC-DC transducer 12: be a hf switching power supply, its output voltage, electric current have constant current voltage limiting, voltage stabilizing current limliting, the automatic protection function of the high reliability such as superpotential, excess current, short circuit simultaneously for adjustable continuously.
The 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 respectively described DC-DC host work power supply 1 and civil power, 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 the 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 respectively a power supply output line, make it to have the first connection terminal A and the second connection terminal B.On the output two ends common point of the power positive cathode switch 11 of inciting somebody to action again and connecing and the second safety protective circuit 10; draw respectively a power supply output line; 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 the first connection terminal A end connects work online negative pole or the positive pole of power supply, or connects tested battery pack side joint work online negative pole or the positive terminal of power supply; Described the 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 collects 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 the mode of operation with best safety, be applicable to the charge and discharge maintenance test of the positive and negative online battery pack of communication power supply of difference.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 touch ground short circuit, and have online battery pack constant current voltage 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; the present embodiment two is compared with embodiment one; difference both is: the charge and discharge test equipment for full on-line storage battery pack of the present embodiment two also comprises the forward and reverse polarity work of a 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 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 in embodiment one, and embodiment two will supply with DC-DC transducer 12, constant-current discharge load intelligence control circuit 5 and DC-DC host work power supply 1 three functions module by the output of the forward and reverse polarity work of a power supply holding circuit 9.Therefore, above-mentioned two embodiment have identical function.
Draw a power supply output line on the forward and reverse polarity work of the power supply holding circuit that input connects and 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 the second safety protective circuit 10; draw respectively a power supply output line; 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 the first connection terminal A end connects work online negative pole or the positive pole of power supply, or connects tested battery pack side joint work online negative pole or the positive terminal of power supply; Described the 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 collects row (power work ground).
Please main reference Fig. 3, the below illustrates the application principle of work of the charge and discharge test equipment for full on-line storage battery pack of above-mentioned two embodiment take the-online discharge capacity test job of 48V communication power supply backup batteries principle as example.
As extremely shown in Figure 7 in Fig. 3, the existing communication machine room is commonly used-48V or+theory diagram that the communication power supply backup batteries 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 affect 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 operating process, battery pack is only torn positive battery terminal (power work ground wire) open, namely and the positive pole of rectifier power supply power supply collect 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, namely and the positive pole of rectifier power supply power supply collect between line and be connected in series, the access of charge and discharge test equipment for full on-line storage battery pack should observe " first connect three; after tear one open " principle, discharging test device for battery pack is completed test and is withdrawed from when serving, should observe the principle of " first connect, then tear three open ".
see also again Fig. 3 to Fig. 5, now take the-tested battery pack of 48V communication power supply as example, at this moment, the mode of connection of above-mentioned three embodiment is all identical, all adopt and " first connect three, after tear one open ", be: the power supply output line L1 that first connects charge and discharge test equipment for full on-line storage battery pack, L2, L3, be about to three connection terminal B of this testing apparatus, A, D is connected to respectively battery pack positive pole (being the connection terminal that battery pack side connects power work ground) connection terminal, negative terminals or DC distributor output one along separate routes A1 and-48V communication power supply power supply positive pole collects row GD, after tear the former electric power connection line L5 of tested battery pack positive terminal open, namely disconnect battery pack positive terminal with-arrange being connected of GD anodal collecting of 48V communication power supply power supply, " first connect one, after tear three open " be: tested battery pack is completed test, and automatically carry out current-limiting charge and withdraw from service to equipotential from being dynamically connected, should first meet the former electric power connection line L5 of tested battery pack positive terminal C1, 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, it is take+24V communication power supply backup batteries as example, what it adopted " first connects three, after tear one open " the order of connection and the-tested battery pack of 48V communication power supply identical, but polarity is different, be in particular in: described the 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 collects 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 present 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 affect 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 is controlled the DC-DC transducer, controls output voltage U with automatic steady current O, improve the voltage U that works online On-Line Voltage=U E1+ U 0Satisfy tested battery pack I and online the communication facilities load constant is banished the electrical testing job requirement, automatically forbid or close constant-current discharge load intelligence control circuit to the power supply of discharge load circuit, keeping steady current to the online communication apparatus of load I discharge 1=I that discharges 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(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 InputBe charge and discharge test equipment for full on-line storage battery pack input service electric current, I Discharge DTo communication facilities load supplying electric current, the I floating charge is other battery pack floating charge working currents that works online, I for tested battery pack 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 that tested battery pack I provides the working current sum of input power to 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 working 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, control by the charge and discharge test equipment for full on-line storage battery pack automatic steady current and adjust output voltage U 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; During the constant-current discharge electric current I discharge 1 carried 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, the preferential DC-DC transducer of automatically controlling of charge and discharge test equipment for full on-line storage battery pack system is controlled output voltage U with the automatic steady current pressure limiting O, the voltage U of the online stable output of raising On-Line Voltage=U Battery Group 1+ U 0Satisfy tested battery pack I and preferentially constant current-supplying is carried out in the communication facilities load online; 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 Intelligent control electric road direction 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 working current I Equipment=I Discharge D-I Floating chargeAt this moment, the rectifier of normal operation or high frequency switch power output current I rectifier are less than communication facilities loaded work piece electric current I equipment and 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, control by the charge and discharge test equipment for full on-line storage battery pack automatic steady current and adjust output voltage U O, promote the voltage that works online, keep in a word tested battery pack I to carry out the discharge capacity test 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.Design parameter arranges; 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 system moves use safety with the assurance charge and discharge test equipment for full on-line storage battery pack.
After online discharge finished, automatic charging recovered to work online catenation principle as shown in Figure 9 to equipotential:
When the online discharge test of tested battery pack I finishes, the charge and discharge test equipment for full on-line storage battery pack system automatically controls DC-DC transducer, constant-current discharge load intelligence control circuit and discharge load circuit and is in closed condition (tested accumulator battery voltage U at this moment, E1Voltage U lower than the power supply that works online On-Line Voltage, I Constant Current LoadAnd I DC-DCWorking current is tending towards 0.), this device systems is automatically controlled the automatic current limiting charging 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 substantially is in the constant-current charge state.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 according to system and automatically controls the output of the second safety protective circuit and positive-negative polarity switch; 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 safety control circuit with equipotential, the output of automatically controlling the DC-DC transducer is 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 automatically controls the output of DC-DC transducer 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 completes the battery charging; When completing the battery charging; this device systems is with the end of output charging of autoshutdown DC-DC transducer; while completes online power supply by the second safety protective circuit and equipotential connects safely; and then system completes the switching of positive-negative polarity switch automatically; keep online power supply and the safe connection status of equipotential, 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 second safety protective circuit 10 dual power supply safeguard protections; And in charging process; if civil power 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 the second safety protective circuit 10 is connected in the power supply that works online thus; and carry out equipotential and connect safely protection; the output of autoshutdown DC-DC transducer 12 simultaneously, guaranteeing all can the real-time online uninterrupted power supply in tested battery pack I charge or discharge test process.
Illustrate: embodiment one is applied to+during the 24V power supply system for communications, its discharge online and charged state under principle can be applied to reference to embodiment one-situation during the 48V power supply system for communications.Difference both is discharge and charging measurement working current opposite direction.
Again as shown in Figure 10 and Figure 11, that embodiment two is applied to-theory structure block diagram during the 48V power supply system for communications under online discharge and 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, both basic identical, repeat 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 as lead-out terminal the negative or positive electrode place of working that is connected in Communication Power Equipment system DC distributor between tested battery pack and online communication equipment working power and collects and arrange GD (namely connect power work ground).Menu setecting, function and parameter setting according to charge and discharge test equipment for full on-line storage battery pack MCU unit, system automatically controls the positive-negative polarity switch 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, become to be charged as and discharge and become the function conversion that discharge is charging, thereby realize the entirely 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, the second safety protective circuit, one first 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 mutually are connected in series;
Described positive-negative polarity switch input is connected to the first safety protective circuit, automatic current limiting charging and is connected safety control circuit, DC-DC transducer with equipotential, exports and connect the second safety protective circuit;
Described control module further comprises a MCU unit and the current/voltage data acquisition and conversion control circuit, battery pack monomer voltage checkout equipment, data-carrier store, the telecommunication circuit that all are connected with this MCU unit again, LCD shows and the keyboard input;
In described equipment, the output of DC-DC host work power supply is connected with described constant-current discharge load intelligence control circuit, control module;
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, DC-DC transducer, the second safety protective circuit and positive-negative polarity conversion switch circuit 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 series circuit of constant-current discharge load intelligence control circuit and discharge load circuit; The input of tested battery pack DC-DC host work in parallel power supply provides main frame normal operation 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 a 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, it 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 of this AC/DC Switching Power Supply is connected to civil power, and output connects described host work power supply.
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, it 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, it is characterized in that: described the first 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 the second safety protective circuit comprises that a great power bidirectional power supply static switch pipe, a direct current contactor and one are used for the automatic protection circuit of this great power bidirectional power supply static switch pipe of control and protection and D.C. contactor work, and described great power bidirectional power supply static switch pipe and D.C. contactor are connected in parallel.
CN 201010162531 2010-04-09 2010-04-09 Charge and discharge test equipment for full on-line storage battery pack CN101813755B (en)

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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
CN103018674A (en) * 2012-11-29 2013-04-03 山东润峰集团新能源科技有限公司 Intelligent charge-discharge tester for lithium battery pack
CN103472402A (en) * 2013-09-17 2013-12-25 国家电网公司 Storage battery on-line discharging device
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CN104362711B (en) * 2014-11-13 2017-09-19 广东欧赛能源与自动化技术有限公司 The efficient charge and discharge electricity detecting system of AGV dolly battery packs
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CN107994642A (en) * 2017-12-19 2018-05-04 中国电子科技集团公司第四十研究所 A kind of seamless power supply and load transfer system and method
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Address after: 350000 east of the five floor of building 4, M9511 Industrial Park, 18 Ma Jiang Road, Mawei District, Fuzhou, Fujian.

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Patentee after: Fuzhou Fuguang Electronics Co., Ltd.

Address before: 350000 Xingfa Road 8, Fuzhou Development Zone, Fuzhou, Fujian.

Co-patentee before: Shi Weitao

Patentee before: Fuzhou Fuguang Electronics Co., Ltd.