CN101312297B - Power supply apparatus for pulse charging of accumulator - Google Patents
Power supply apparatus for pulse charging of accumulator Download PDFInfo
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- CN101312297B CN101312297B CN2008100620263A CN200810062026A CN101312297B CN 101312297 B CN101312297 B CN 101312297B CN 2008100620263 A CN2008100620263 A CN 2008100620263A CN 200810062026 A CN200810062026 A CN 200810062026A CN 101312297 B CN101312297 B CN 101312297B
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Abstract
The invention provides a pulse charging power supply for accumulators. A positive output terminal and a negative output terminal of an AC/DC module (AC/DC) are a charging positive terminal and a charging negative terminal, which are capable of being connected with an anode and a cathode of an accumulator to form a charging circuit, a discharge resistor is connected between the charging positive terminal and the charging negative terminal to form a discharge circuit of the accumulator, further a microcomputer (MC), the charging circuit and the discharge circuit are respectively provided with switch circuits (JC, C, Q1) controlled by the microcomputer, wherein the resistance value of the discharge resistor (RF1) is obtained by calculating the set current value of pulse discharge with the voltage of the accumulator, and the charging circuit is further provided with an adjustable resistor (FZC) controlled by the microcomputer. The switch circuits and the adjustable resistor are based on microcomputer-control, the pulse charging power supply of the invention carries out controllable pulse conversion to the direct current supplied by the AC/DC module, realizing the industrialized charging device performing constant-current prior to pulse, wherein variable amplitude and intervals are utilized in pulse, and the pulse is depolarized among the intervals, thereby filling the vacancy in the technical field of charging equipment.
Description
What technical field the present invention relates to is the bigger power supply apparatus for pulse charging of accumulator of a kind of power supply apparatus for pulse charging of accumulator, especially power output, belongs to direct conversion techniques field between chemical energy and the electric energy.
Background technology changing in the storage battery manufacturing with when using, charge, used charge power supply in the operating process such as maintenance, the performance quality of charge in batteries is directly connected to the aspects such as service behaviour, useful life, efficiency of energy utilization and environmental protection of storage battery.For reaching good charging effect, Chinese invention patent application (CN1632981) and (CN1761097) disclose a kind of first constant current afterpulse and pulse and adopt luffing, the gap and in the middle of the gap with the charging method of depolarising pulse, but do not realize the good result that this method can reach but still there is the charging device that forms commercial Application at present, and only rest on the technical merit of experimental provision, disclosed in the charging device as Chinese utility model patent ZL200420014283.7 valve controlled sealed lead-acid accumulator " charge power supply that is made of high frequency switch power is arranged, between charge power supply and storage battery by a positive negative pulse stuffing generation circuit of forming with the electronic switch of microprocessor control ".But because the cost of high frequency switch power device is very high, therefore industrial so far used high-power charge power supply device, the especially power output charge power supply device more than 10kW all remains silicon controlled rectification power source and fails to realize pulse current charge.
Summary of the invention is at the problems referred to above, the technical issues that need to address of the present invention are to realize a kind of first constant current afterpulse and pulse employing luffing, gap and a charging method with the depolarising pulse as how lower cost, and can accurately regulating impulse characteristic and instant power supply apparatus for pulse charging of accumulator from the pulse that will control to storage battery that export.
Power supply apparatus for pulse charging of accumulator provided by the invention, the silicon controlled rectifier continuous-current plant that the DC power supply of providing is arranged, the positive-negative output end of silicon controlled rectifier continuous-current plant is the charging positive and negative terminal that can connect into charge circuit with storage battery Yang Yin the two poles of the earth, charging is connected with discharge resistance between the positive and negative terminal and constitutes the discharge loop of storage battery, also has microcomputer, respectively be subjected to micro-processor controlled switching circuit on charge circuit and the discharge loop, wherein the resistance of discharge resistance is calculated gained to set impulse discharge current value and battery tension, is subjected to micro-processor controlled adjustable resistance in charge circuit in addition; Said adjustable resistance has the circuit unit of following structure: constitute load with a field effect transistor, the output of the grid concatenation operation amplifying circuit of said field effect transistor, the positive input terminal of this operational amplification circuit connect microcomputer and become the resistance signal output part; The output of operational amplification circuit also connects and composes negative-feedback circuit through a resistor and its negative input end, and the negative input end of operational amplification circuit also is connected through the output negative pole of a sampling resistor with the silicon controlled rectifier continuous-current plant; The single use of above-mentioned adjustable resistance unit or with more than two at the load two ends with become the resistance signal output part back that is connected in parallel at microcomputer and use.
Power supply apparatus for pulse charging of accumulator provided by the invention has charge circuit and discharge loop, the switching circuit on charge circuit and the discharge loop, and the switching time of except which loop works available microcomputer selects, going back controllable switch, thus form pulse; And the size of the impedance that the adjustable resistance in the charge circuit is connected with storage battery on the scalable charge circuit, thereby can control (being pulse amplitude during pulse current charge) to charging current value under system controlled by computer.Based on micro-processor controlled switching circuit and adjustable resistance, the present invention has carried out controlled pulses switch to the direct current that the silicon controlled rectifier DC power supply is provided, thereby realized that luffing, gap are adopted in industrialized first constant current afterpulse and pulse and in the middle of the gap with the charging device of depolarising pulse, remedied the blank of prior art in this technical field.
Utilize the height of fet gate voltage can change the characteristic of the conducting resistance between the source-drain electrode, become resistance signal (through the D/A conversion and the voltage signals of different height) with microcomputer output and control the load resistance that inserts charging circuit and change from complete conducting (resistance is approximately zero) with between (resistance is approximate infinitely great).And between the grid of microcomputer change resistance signal output part and field effect transistor, add operational amplification circuit with negative-feedback circuit, make adjustable resistance be stablized, accurately and fast regulate, also make the present invention that the dynamic responding speed of prime silicon controlled rectifier continuous-current plant is required to reduce and the expansion range of application.
Power supply apparatus for pulse charging of accumulator provided by the invention, be connected with an electronic switch on the said microcomputer change resistance signal output part, the control end of electronic switch is connected with the pulse control signal output of microcomputer, be that charging pulse in the charge circuit is whether grid through field effect transistor powers up and make source-drain electrode conducting control charge circuit break-make to produce, and produce without the switch on and off in the charge circuit, with further raising accuracy and reaction speed.
Power supply apparatus for pulse charging of accumulator provided by the invention, said microcomputer also has an AC/DC control signal output ends to connect the voltage control circuit of silicon controlled rectifier continuous-current plant, by microcomputer the voltage between the silicon controlled rectifier continuous-current plant positive-negative output end is regulated, reach the different charging voltage accumulators of output, because the number of elements difference of storage battery, needed charging voltage is also different when charging after its series connection, and this structure of the present invention makes a charging device can adapt to the charging needs of maximum charging voltage tolerance band with interior any number of elements storage battery.
Power supply apparatus for pulse charging of accumulator provided by the invention, the charging procedure of being deposited in the said computer memory is described is to adopt luffing, gap and pass through the charging curve that Test Summary goes out with the depolarising pulse charge method with institute different numbers of elements of charging accumulator by first constant current afterpulse and pulse, i.e. the present invention charges by the storage battery of said charging method to correspondence with the set parameter that sums up with result of the test.
Power supply apparatus for pulse charging of accumulator provided by the invention, with said charge circuit and discharge loop and charhing unit of microcomputer control circuit formation thereof, two above charhing units are connected in parallel between a silicon controlled rectifier continuous-current plant output positive and negative terminal.
Power supply apparatus for pulse charging of accumulator provided by the invention also has a constant-current discharge circuit that is connected with discharge resistance between accumulator anode and the negative pole; Connected with discharge resistance by micro-processor controlled adjustable resistance; The resistance of said discharge resistance is to set constant-current discharge current value and battery tension and to consider that the regulated quantity of adjustable resistance is definite.Adjustable resistance in constant-current discharge loop size of total discharge resistance value on the scalable discharge loop under system controlled by computer, thus can regulate discharging current.
Power supply apparatus for pulse charging of accumulator provided by the invention, said to be subjected to micro-processor controlled adjustable resistance be shared in charge circuit and constant-current discharge circuit, has the diverter switch of following installation relation to switch and use: a charging normally opened contact is arranged on the connecting line between silicon controlled rectifier continuous-current plant output cathode and the accumulator anode; An another charging normally opened contact and a discharge normally opened contact are arranged on the connecting line between silicon controlled rectifier continuous-current plant output negative pole and the storage battery negative electrode, and the charging normally opened contact is in silicon controlled rectifier continuous-current plant output negative pole one side; The 3rd charging normally opened contact and another discharge normally opened contact are arranged on the constant-current discharge loop, and the charging normally opened contact is in storage battery negative electrode one side; Three charging normally opened contacts are contacts of same charge relay, and two discharge normally opened contacts are contacts of same discharge relay, and the line bag of the line bag of said charge relay and discharge relay is connected microcomputer respectively and discharges and recharges the switching signal output; The two ends of adjustable resistance are connected between two normally opened contacts between silicon controlled rectifier continuous-current plant output negative pole and the storage battery negative electrode and in the constant-current discharge loop between two normally opened contacts.So, can carry out the charge or discharge operation to storage battery by the system controlled by computer charging device.
Appended drawings is the circuit diagram of one embodiment of the invention, among the figure: AC/DC-silicon controlled rectifier continuous-current plant, C-charge relay line bag, CON-microcomputer communication mouth, the E-batteries, F-discharge relay line bag, FZ-discharges and recharges adjustable resistance, JC1, JC2, the normally opened contact of JC3-charge relay, JF2, the normally opened contact of JF3-discharge relay, M1, M2, Mn-makes the metal-oxide-semiconductor of electronic load, the MC-microcomputer, N1, N2, the Nn-operational amplifier, the Q1-MOS pipe, the Q2-switch triode, R11, R12, R1n, R21, R22, R2n, RS1, RS2, the RSn-resistor, RF1-pulsed discharge resistance, RF2-constant-current discharge resistance, U-AC power, V-microcomputer working power, Z1, Z2, Zn-resistance, the silicon controlled rectifier continuous-current plant control signal output ends of 1-microcomputer, the pulsed discharge circuit controls signal output part of 2-microcomputer, 3, the adjustable resistance control signal output ends of 4-microcomputer, the discharge relay line control packet signal output of 5-microcomputer, the charge relay line control packet signal output of 6-microcomputer.
Embodiment
1, as shown in drawings, one power supply apparatus for pulse charging of accumulator is arranged, constitute by charhing unit and silicon controlled rectifier continuous-current plant AC/DC, the silicon controlled rectifier continuous-current plant has input power supply U, wherein the formation of charhing unit is: batteries E the two poles of the earth and silicon controlled rectifier continuous-current plant charging positive-negative output end connect and compose charge circuit, batteries E and constant-current discharge resistance R F2 constitute the constant-current discharge loop, constitute the pulsed discharge loop with pulsed discharge resistance R F1 again, an electronic switch Q1 with the metal-oxide-semiconductor formation is arranged in the pulsed discharge loop.The normally opened contact JC1 that one charge relay is arranged between batteries anode and silicon controlled rectifier continuous-current plant positive pole has the normally opened contact JC3 of a charge relay and the normally opened contact JF3 of a discharge relay and the normally opened contact that charges in silicon controlled rectifier continuous-current plant one side between two negative electrodes.Between batteries and constant-current discharge resistance, the normally opened contact JC2 of a charge relay and the normally opened contact JF2 of a discharge relay and the normally opened contact that charges are arranged on the negative electrode of batteries in batteries one side.In two circuits that point to silicon controlled rectifier continuous-current plant and constant current charge resistance respectively that the batteries negative electrode is drawn, at the charging normally opened contact separately and the access adjustable resistance FZ between the normally opened contact that discharges.The formation of said adjustable resistance is: be made of 1 or n unit, each unit have a field effect transistor (N type metal-oxide-semiconductor) M1, M2 ..., Mn, the source electrode of metal-oxide-semiconductor through a sampling resistor RS1, RS2 ..., insert behind the RSn between the charging normally opened contact and discharge normally opened contact between batteries and the silicon controlled rectifier continuous-current plant, the drain electrode of metal-oxide-semiconductor inserts the charging normally opened contact between batteries and the constant-current discharge resistance and discharges between the normally opened contact.Other have an operational amplifier N1, N2 ..., Nn, its output is connected with the grid of metal-oxide-semiconductor, between its output and the negative input end through a resistance Z1, Z2 ..., Zn is connected and is the negative-feedback circuit of amplifier, its negative input end also through a resistance R 11, R12 ..., be connected between the source electrode of sampling resistor and metal-oxide-semiconductor behind the R1n, its positive input terminal through a resistance R 21, R22 ..., be signal input end behind the R2n.One microcomputer MC is arranged again, and it is connected with working power V and is connected with input signal source through microcomputer communication mouth CON; Other has the silicon controlled rectifier continuous-current plant control signal output ends 1 of microcomputer to be connected with silicon controlled rectifier continuous-current plant communication interface with the control charging voltage value, there is the pulsed discharge circuit controls signal output part 2 (discharge pulse control end) of microcomputer to be connected whether to discharge and reaches pulse characteristics with control impuls with the grid of metal-oxide-semiconductor Q1, the signal input end that has the adjustable resistance control signal output ends 3 (current controling end) of microcomputer to be connected adjustable resistance discharges and recharges load with adjusting and whether final the adjusting charges, charging current value and constant-current discharge current value, there is the adjustable resistance control signal output ends 4 (charging pulse control end) of microcomputer to be connected on the base stage of a NPN type switch triode Q2, the collector electrode of switch triode connects the signal input end of adjustable resistance, the grounded emitter of switch triode is in order to the control charge pulse duty cycle.The discharge relay line control packet signal output 5 that microcomputer arranged behind discharge relay line bag F ground connection with the state of control discharge normally opened contact, the charge relay line control packet signal output 6 that microcomputer arranged behind charge relay line bag C ground connection with the state of control charging normally opened contact.Deposit in the memory of microcomputer by first constant current afterpulse and pulse and adopt luffing, gap and a sequential standard charging current value (and constant-current discharge current value of being scheduled to) that the charging curve that goes out through Test Summary with depolarising pulse charge method and the different numbers of elements of institute's charging accumulator is determined and the charging flow control program of writing by this curve.
When doing charging work, microcomputer is regulated the output voltage of silicon controlled rectifier continuous-current plant according to the storage battery number of elements of institute's storage batteries group, and send Continuity signal to charge relay line bag and make the charge relay adhesive and make the normally opened contact closure of respectively charging, normally-closed contact is opened, incision charge mode and discharge loop is opened circuit.Microcomputer current controling end output signal is also sent to the metal-oxide-semiconductor grid, make the metal-oxide-semiconductor conducting and be adjusted to required resistance with the control charging current value, microcomputer charging pulse control end makes its conducting to a switch triode base stage high level of output, then the signal input end of adjustable resistance is a low level, be that metal-oxide-semiconductor ends, so the width and the gap length of this charging pulse signal scalable charging pulse, do not send signal during constant current charge, the signal duration just is the charging circuit duration (be shown as in the charging pulse waveform zero or negative duration) that opens circuit during pulse current charge, the discharge pulse control end is output signal during the charging pulse control end sends signal (charging circuit opens circuit), make the pulse discharge circuit conducting and the discharge pulse of generation between two charging pulses that discharges, and all have a nothing to discharge and recharge the gap of pulse between these discharge pulse both sides and the charging pulse.
When doing constant-current discharge work, send Continuity signal to discharge relay line bag and make discharge relay adhesive and make the normally opened contact closure of respectively discharging, normally-closed contact is opened, incision discharge mode and charge circuit is opened circuit, meanwhile, do not send Continuity signal to charge relay line bag.The constant-current discharge operation is used for checking storage battery to change into the capacity of back battery.
Also string has a current sensor on batteries, sample in order to charging current or discharging current, and adjust the conducting resistance of the signal change metal-oxide-semiconductor of being defeated by operational amplifier with existing this time current value in the device to compare and then regulate charging current or discharging current reaches standard value storage battery.
Determining of adjustable resistance unit number is that charging and discharging currents, perseverance according to the batteries that will operate discharges and recharges the pressure reduction at resistance, adjustable resistance two ends and the adjustable resistance under the heat dissipation environment can to bear power definite.
As the born power by existing next part metal-oxide-semiconductor of heat dissipation environment is 50-60W, and 18 lead acid accumulators of 100Ahr are operated.Single charging current is 35A as what charge, and metal-oxide-semiconductor pressure reduction is 2V, and then power is that 70w (theoretical value) needs 2 unit.Need be simultaneously as what discharge, discharging current 10A, 18 * 12.5v/ of storage battery electromotive force only are 225V.Constant-current discharge resistance is that 18 Ω promptly share 180V, and then adjustable resistance need be shared 45V.The power that bears is 450W, then needs 8-9 unit.
With the metal-oxide-semiconductor is the access way and the method for controlling of adjustable resistance, also can design other circuit forms according to prior art, this routine circuit structure that is not limited to used in the present invention.
2, the as above routine described charhing unit of 5 covers is drawn in parallel connection on the positive-negative output end of a silicon controlled rectifier continuous-current plant.Can select 1 to 5 cover charhing unit to work simultaneously on demand, to adapt to the charging requirement of different batteries group, the working range of energy savings and the existing silicon controlled rectifier continuous-current plant charging device of expansion.When work, the output voltage of silicon controlled rectifier continuous-current plant is with the ceiling voltage output of required charging voltage in each cover charhing unit, for the charhing unit of the low charging voltage of needs, its unnecessary voltage then carries out dividing potential drop by the resistance of regulating adjustable resistance.
Claims (7)
1. power supply apparatus for pulse charging of accumulator, the silicon controlled rectifier continuous-current plant that the DC power supply of providing is arranged, the positive-negative output end of silicon controlled rectifier continuous-current plant is the charging positive and negative terminal that connects into charge circuit with storage battery Yang Yin the two poles of the earth, it is characterized in that charging and be connected with discharge resistance between the positive and negative terminal and constitute the discharge loop of storage battery, also has microcomputer, respectively be subjected to micro-processor controlled switching circuit on charge circuit and the discharge loop, wherein the resistance of discharge resistance is calculated gained to set impulse discharge current value and battery tension, is subjected to micro-processor controlled adjustable resistance in charge circuit in addition; Said adjustable resistance has the circuit unit of following structure: constitute load with a field effect transistor, the output of the grid concatenation operation amplifying circuit of said field effect transistor, the positive input terminal of this operational amplification circuit connect microcomputer and become the resistance signal output part; The output of operational amplification circuit also connects and composes negative-feedback circuit through a resistor and its negative input end, and the negative input end of operational amplification circuit also is connected through the output negative pole of a sampling resistor with the silicon controlled rectifier continuous-current plant; The single use of above-mentioned adjustable resistance unit or with more than two at the load two ends with become the resistance signal output part back that is connected in parallel at microcomputer and use.
2. power supply apparatus for pulse charging of accumulator as claimed in claim 1 is characterized in that being connected with an electronic switch on the said microcomputer change resistance signal output part, and the control end of electronic switch is connected with the pulse control signal output of microcomputer.
3. power supply apparatus for pulse charging of accumulator as claimed in claim 1 is characterized in that said microcomputer also has an AC/DC control signal output ends to connect the voltage control circuit of silicon controlled rectifier continuous-current plant.
4. power supply apparatus for pulse charging of accumulator as claimed in claim 1, the charging procedure that it is characterized in that being deposited in the memory of said microcomputer is described is to adopt luffing, gap and pass through the charging curve that Test Summary goes out with the depolarising pulse charge method with institute different numbers of elements of charging accumulator by first constant current afterpulse and pulse.
5. power supply apparatus for pulse charging of accumulator as claimed in claim 1, it is characterized in that two above charhing units are connected in parallel with said charge circuit and discharge loop and charhing unit of microcomputer control circuit formation thereof between a silicon controlled rectifier continuous-current plant output positive and negative terminal.
6. power supply apparatus for pulse charging of accumulator as claimed in claim 1 is characterized in that also having a constant-current discharge circuit that is connected with discharge resistance between accumulator anode and the negative pole; Connected with discharge resistance by micro-processor controlled adjustable resistance; The resistance of said discharge resistance is to set constant-current discharge current value and battery tension and to consider that the regulated quantity of adjustable resistance is definite.
7. as claim 1 or 6 described power supply apparatus for pulse charging of accumulator, it is characterized in that said to be subjected to micro-processor controlled adjustable resistance be shared in charge circuit and constant-current discharge loop, and have the diverter switch of following installation relation to switch to use: a charging normally opened contact is arranged on the connecting line between silicon controlled rectifier continuous-current plant output cathode and the accumulator anode; An another charging normally opened contact and a discharge normally opened contact are arranged on the connecting line between silicon controlled rectifier continuous-current plant output negative pole and the storage battery negative electrode, and the charging normally opened contact is in silicon controlled rectifier continuous-current plant output negative pole one side; The 3rd charging normally opened contact and another discharge normally opened contact are arranged on the constant-current discharge loop, and the charging normally opened contact is in storage battery negative electrode one side; Three charging normally opened contacts are contacts of same charge relay, and two discharge normally opened contacts are contacts of same discharge relay, and the line bag of the line bag of said charge relay and discharge relay is connected microcomputer respectively and discharges and recharges the switching signal output; The two ends of adjustable resistance are connected between two normally opened contacts between silicon controlled rectifier continuous-current plant output negative pole and the storage battery negative electrode and in the constant-current discharge loop between two normally opened contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100620263A CN101312297B (en) | 2008-05-16 | 2008-05-16 | Power supply apparatus for pulse charging of accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100620263A CN101312297B (en) | 2008-05-16 | 2008-05-16 | Power supply apparatus for pulse charging of accumulator |
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| Publication Number | Publication Date |
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| CN101312297A CN101312297A (en) | 2008-11-26 |
| CN101312297B true CN101312297B (en) | 2010-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100620263A Expired - Fee Related CN101312297B (en) | 2008-05-16 | 2008-05-16 | Power supply apparatus for pulse charging of accumulator |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017133392A1 (en) | 2016-02-05 | 2017-08-10 | 广东欧珀移动通信有限公司 | Terminal charging system, charging method, and power adapter |
| CN107394293B (en) * | 2017-07-07 | 2019-06-18 | 协能济（北京）储能科技有限公司 | A kind of restorative procedure and its reparation circuit of retired capacity of lithium ion battery |
| CN108177553B (en) * | 2018-02-28 | 2023-06-16 | 柳州铁道职业技术学院 | New energy automobile charging and discharging device |
| CN111711255B (en) * | 2020-07-20 | 2023-03-28 | 上海英内物联网科技股份有限公司 | Method for reducing energy consumption of semi-active RFID equipment |
| CN115986898B (en) * | 2021-10-14 | 2024-03-12 | 宁德时代新能源科技股份有限公司 | Charging device, charging control method, power management system, and storage medium |
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