CN103176100A - Method and device for detecting whether storage battery is normally connected in UPS (uninterrupted power supply) or not - Google Patents
Method and device for detecting whether storage battery is normally connected in UPS (uninterrupted power supply) or not Download PDFInfo
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- CN103176100A CN103176100A CN201310067009XA CN201310067009A CN103176100A CN 103176100 A CN103176100 A CN 103176100A CN 201310067009X A CN201310067009X A CN 201310067009XA CN 201310067009 A CN201310067009 A CN 201310067009A CN 103176100 A CN103176100 A CN 103176100A
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Abstract
The invention provides a method and device for detecting whether a storage battery is connected normally in a UPS (uninterrupted power supply) or not. The method includes controlling a charging panel relay to charge the battery or not by controlling a charge on/off switch, and judging battery voltage to detect whether the battery is normally connected or not. The method is simple to apply and can be applied without additional hardware circuits added. Only effectively utilization of existing digital processor chips is needed, cost advantage is obvious, and reliability is high.
Description
Technical field
The present invention relates to the uninterrupted power source field, particularly whether normal method and testing circuit of a kind of connection that how to detect accumulator in uninterrupted power source.
Background technology
UPS(Uninterruptible Power System uninterrupted power source) be a kind of energy storage device that contains, the uninterrupted power source of the constant voltage constant frequency take inverter as chief component.Be mainly used in providing continual electric power supply to single computer, computer network system or other power electronic equipment.When civil power input was normal, the UPS uninterrupted power source was supplied to load to use after with the civil power voltage stabilizing, and the UPS of this moment is exactly an electric main voltage stabilizer, and it also charges to self-contained battery simultaneously; When commercial power interruption (forced outage), with the electric energy of self-contained battery, the method for changing by inversion continues supply 220V alternating current to load to UPS, load is kept worked and protect the load soft and hardware not to be damaged immediately.The UPS no-break power unit all provides protection to the excessive and voltage of voltage is too low usually.due to when the civil power input is normal, UPS is only an electric main voltage stabilizer, access therein or do not access accumulator and can not affect and power to the load, therefore, when the civil power input is normal, often accumulator can not be understood intuitively whether online, if in practical application, the accumulator of UPS is not linked in circuit, in case civil power is undesired, need to switch to by storage battery power supply, and accumulator is not online, will cause load power source to interrupt, necessarily loss, therefore, need in UPS whether the accumulator of self is detected online, if accumulator is not online in time remind and make accumulator online.
Summary of the invention
To the objective of the invention is in order overcoming the above problems, to the invention provides a kind of connection that detects accumulator in UPS whether normal method and pick-up unit.
Technical scheme of the present invention is: detect accumulator in a kind of UPS and whether connect normal method, the charging panel of UPS utilizes the accumulator access point to be connected with the both positive and negative polarity of accumulator respectively, whether control to charge in batteries by charging panel relay K 1, comprise the following steps:
Step 1, normally connect at definite accumulator in advance, when civil power input is normal, disconnect charging panel relay K 1, measure the voltage of accumulator access point, and preserve;
Step 2, when civil power input is normal, adhesive charging panel relay K 1 is measured the voltage of accumulator access point
, and preserve;
Step 3, charging panel relay K 1 is disconnected setting-up time
Time period;
Step 4, measurement charging panel relay K 1 disconnect setting-up time
The time accumulator access point voltage
, and immediate recovery charging panel relay is to attracting state;
Step 5, judgement
Whether be true, if the abnormal connection of accumulator very is described, otherwise accumulator is normal connection.
Whether connect in normal method: described setting-up time if further, detecting accumulator in above-mentioned UPS
Determine according to the size of the storage capacitor on the UPS circuit board, when the every joint input of UPS cell voltage is 12V, when the storage capacitor on the UPS circuit board is 330uF, setting-up time
Be 80ms.
The present invention provides also in a kind of UPS, whether the detection accumulator connects normal pick-up unit, comprise the charge in batteries plate that is connected with accumulator, be provided with microprocessor on described charge in batteries plate, be arranged on the charge in batteries plate civil power to the relay in the circuit of the charge in batteries of described UPS (K1), control the charge in batteries plate whether to the relay of charge in batteries, control the voltage detecting circuit that described relay disconnects with the control circuit of adhesive, measures the accumulator access point voltage that described charge in batteries plate is connected with accumulator; Described microprocessor is controlled described relay by control circuit and is disconnected and adhesive;
Described charging panel relay disconnects and the control circuit of adhesive comprises control triode (Q2); The collector of described control triode (Q2) connects power supply by the coil of described relay (K1), the grounded emitter of described control triode (Q2), the control signal that is provided by described microprocessor is provided the base stage of described control triode (Q2);
The voltage detecting circuit of described accumulator access point voltage comprises the cell voltage sample circuit, and described voltage sample circuit is by the access of accumulator access point, and the voltage sampling with this accumulator access point outputs to described microprocessor respectively;
Described microprocessor produces controls described relay (K1) disconnection or closed control signal, and the voltage signal of receiver voltage testing circuit output judges whether detect accumulator in UPS connects normally.
Whether further, detect accumulator in above-mentioned UPS connects in normal pick-up unit: also comprise bleeder circuit in described voltage sample circuit, the output voltage that described bleeder circuit produces after dividing potential drop outputs to described microprocessor.
Whether further, detect accumulator in above-mentioned UPS connects in normal pick-up unit: also comprise signaling conversion circuit between described voltage sample circuit and described microprocessor, described signaling conversion circuit comprises operational amplifier; The in-phase input end of described operational amplifier and out-phase end input end meet respectively the positive and negative electrode place that connects the accumulator access point in UPS, between the out-phase end of operational amplifier and output, resistance R 11 are set.
The invention provides a kind of UPS in use current battery whether connect normal detection method, this method is convenient and simple, need not to increase additional circuit.
Below in conjunction with specific embodiment, the present invention is done comparatively detailed description.
Description of drawings
Fig. 1 is provided with in the present invention to detect the whether UPS control circuit schematic diagram of normal connecting circuit of accumulator in UPS.
Fig. 2 is the signal transition diagram that uses in the present invention.
Fig. 3 is control flow chart of the present invention.
Embodiment
Embodiment 1, as shown in Figure 1, in the present embodiment, increase by two circuit in the UPS control circuit board, one is to utilize microprocessor to control the control circuit of the disconnection of charging panel relay and adhesive, and another is the testing circuit that detects UPS input cell voltage, the Voltage-output that voltage detecting circuit detects is in microprocessor, whether normally accessed by the microprocessor judges accumulator, as shown in Figure 1, the circuit theory of this UPS is as follows:
the charging panel input is the BUS voltage DC360V that takes from the UPS power circuit, enter into circuit board by two fuse F1 and F2 later on, utilize diode D1, inductance capacitance C1 and switching tube Q1 and transformer T1 produce stable voltage, here the signal by gauge tap pipe switch can be provided by microprocessor CPU, CPU does not draw in the drawings, making becomes a switching power supply, secondary output by transformer T1 by diode D2 and inductance capacitance C2 filtering after under the control of relay K 1 to UPS working power SPS power supply with charge a battery, to UPS working power SPS power supply and two circuit parallel connections charging a battery, a F4 also takes a policy when accessing load to the circuit that UPS working power SPS is powered, and by outputing to load after diode D4 and inductance capacitance C4 voltage stabilizing and filtering.The circuit that charges a battery is to similar to the circuit of UPS working power SPS power supply, also to have added fuse F3, by diode D3 and inductance capacitance C3 voltage stabilizing output, be connected with the positive and negative electrode of accumulator respectively, the accumulator access point that will be linked into the positive and negative electrode of accumulator here is called BAT.V+, BAT.V-, and the purpose of the present embodiment is to detect in the normal situation of civil power output, BAT.V+, whether two points of BAT.V-normally are connected with the both positive and negative polarity of accumulator.
In the present embodiment, as having increased by two circuit on the charging panel of saying previously, the control circuit of first relay, it two is accumulator access point BAT.V+ namely in village on charging panel, the voltage detecting circuit of two points of BAT.V-.The control circuit of relay comprises relay K 1, controls triode Q2; Relay K 1 is arranged in circuit to the charging of the battery of UPS, and the collector that controls triode Q2 connects power supply by the coil of relay (K1), controls the grounded emitter of triode Q2, and the control signal that is provided by microprocessor is provided the base stage of control triode Q2.
BAT.V+, the voltage detecting circuit of two points of BAT.V-comprises voltage sample circuit, and voltage sample circuit is arranged in UPS access accumulator positive and negative electrode place, and the voltage sampling that will locate respectively outputs to microprocessor;
BAT.V+, the output of BAT.V-is two voltages, what be input to CPU is the value that the voltage of a BAT.V+ deducts the voltage of BAT.V-, therefore, also having subtraction circuit signal transition diagram as shown in Figure 2 in circuit is exactly the circuit that a voltage that draws BAT.V+ deducts the voltage of BAT.V-in fact, BAT.V+, BAT.V-connects respectively "+" end and "-" end of operational amplifier by resistance R 9 and R8, connect common port by resistance R 10 between "+" of R9 and operational amplifier, series resistor R11 between "-" end that connects operational amplifier and output terminal, then be linked into CPU by diode D6 as voltage stabilizing diode, diode D6 makes the CPU input voltage at 0-3.3V, the protection cpu i/f.Carrying out the signal of A/D conversion or other form in CPU preserves.
Microprocessor produces controls described relay K 1 disconnection or closed control signal, and the voltage signal of receiver voltage testing circuit output judges whether detect accumulator in UPS connects normally.
In the present embodiment, the control procedure of the software that moves in CPU is as follows:
A, normally connect at definite accumulator in advance, when civil power input is normal, disconnect charging panel relay K 1, measure UPS input cell voltage
, and preserve;
B, when civil power input is normal, adhesive charging panel relay K 1 is measured UPS input cell voltage
, and preserve;
C, charging panel relay K 1 is disconnected;
UPS input battery voltage value when D, measurement charging panel relay disconnection setting-up time 80ms
, and immediate recovery charging panel relay is to attracting state;
E, judgement
Whether be true, if the abnormal connection of accumulator very is described, otherwise accumulator is normal connection.
Specifically as shown in Figure 1 and Figure 2, when battery connects, under normal charge mode, CPU opens Q2,1 adhesive of charging panel relay K by charge on/off signal end output high level, an output part is given batteries charging, and a part provides working power for power module (SPS);
R2 ~ R7 exports battery sampled signal BAT.V+ and BAT.V-by dividing potential drop, and these two signals provide battery voltage detection signal BAT.V by operational amplifier to CPU, detects cell voltage;
Detect the battery connection status:
CPU disconnects the charging panel relay by charge on/off signal end output low level,
If battery connects, after charge relay disconnected, electric battery can continue as power module (SPS) working power is provided, and it is faint that CPU detects the cell voltage fall, judges that battery connects;
If battery does not connect, after charge relay disconnects, only have the quantity of electric charge of capacitor C 3 storages to provide of short duration power supply for power module, keep the UPS normal operation; Simultaneously, because battery does not connect, CPU detects the cell voltage fall and surpasses large, the judgement battery does not connect, and at once by charge on/off signal end output high level, the adhesive charge relay is the continuous electricity of power module, and send sound and light alarm, show battery failures by display screen.
The control signal pilot relay K1 that CPU produces, whether control charges the battery, if there is no battery, whether control simultaneously gives whole main board power supply.If when not having battery, need to come the control time detection time according to the size of C3, and what we selected now is the electric capacity of 330uF, power-on time over 150ms can be provided, current what select is the detection time of 80ms, and to reach reliable purpose, Fig. 3 is control flow chart.
Determine accumulator access method in the present embodiment whether normally, by disconnecting the charging panel relay, the magnitude of voltage that the fast detecting cell voltage is current is to determine whether direct current is normal.After disconnecting the charging panel relay, need the fast detecting battery voltage value, confirm that battery does not connect when dropping to the magnitude of voltage that battery status can not drop to.And quick pick-up charging panel relay.Not so power panel power on hold be discharged after, can not continue as UPS operating voltage SPS power supply, will make the whole system outage.
Claims (5)
1. whether detect accumulator in a UPS and whether connect normal method, the charging panel of UPS utilizes the accumulator access point to be connected with the both positive and negative polarity of accumulator respectively,, it is characterized in that to charge in batteries by 1 control of charging panel relay K, comprises the following steps:
Step 1, normally connect at definite accumulator in advance, when civil power input is normal, disconnect charging panel relay K 1, measure the voltage of accumulator access point
, and preserve;
Step 2, when civil power input is normal, adhesive charging panel relay K 1 is measured the voltage of accumulator access point
, and preserve;
Step 3, charging panel relay K 1 is disconnected setting-up time
Time period;
The voltage of accumulator access point when step 4, measurement charging panel relay K 1 disconnection setting-up time, and immediate recovery charging panel relay is to attracting state;
Step 5, determine whether very, if accumulator normal connection not very is described, otherwise accumulator is normal connection.
2. detect accumulator in UPS according to claim 1 and whether connect normal method, it is characterized in that: described setting-up time is determined according to the size of the storage capacitor on the UPS circuit board, when the every joint input of UPS cell voltage is 12V, when the storage capacitor on the UPS circuit board was 330uF, setting-up time was 80ms.
3. detect accumulator in a UPS and whether connect normal pick-up unit, comprise the charge in batteries plate that is connected with accumulator, be provided with microprocessor on described charge in batteries plate, be arranged on the charge in batteries plate civil power to the relay in the circuit of the charge in batteries of described UPS (K1), control the charge in batteries plate whether to the relay of charge in batteries, control the voltage detecting circuit that described relay disconnects with the control circuit of adhesive, measures the accumulator access point voltage that described charge in batteries plate is connected with accumulator; Described microprocessor is controlled described relay by control circuit and is disconnected and adhesive; It is characterized in that:
Described charging panel relay disconnects and the control circuit of adhesive comprises control triode (Q2); The collector of described control triode (Q2) connects power supply by the coil of described relay (K1), the grounded emitter of described control triode (Q2), the control signal that is provided by described microprocessor is provided the base stage of described control triode (Q2);
The voltage detecting circuit of described accumulator access point voltage comprises the cell voltage sample circuit, and described voltage sample circuit is by the access of accumulator access point, and the voltage sampling with this accumulator access point outputs to described microprocessor respectively;
Described microprocessor produces controls described relay (K1) disconnection or closed control signal, and the voltage signal of receiver voltage testing circuit output judges whether detect accumulator in UPS connects normally.
4. detect accumulator in UPS according to claim 3 and whether connect normal pick-up unit, it is characterized in that: also comprise bleeder circuit in described voltage sample circuit, the output voltage that described bleeder circuit produces after dividing potential drop outputs to described microprocessor.
5. detect accumulator in UPS according to claim 4 and whether connect normal pick-up unit, it is characterized in that: also comprise signaling conversion circuit between described voltage sample circuit and described microprocessor, described signaling conversion circuit comprises operational amplifier; The in-phase input end of described operational amplifier and out-phase end input end meet respectively the positive and negative electrode place that connects the accumulator access point in UPS, between the out-phase end of operational amplifier and output, resistance R 11 are set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310067009.XA CN103176100B (en) | 2013-03-04 | 2013-03-04 | Method and device for detecting whether storage battery is normally connected in UPS (uninterrupted power supply) or not |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310067009.XA CN103176100B (en) | 2013-03-04 | 2013-03-04 | Method and device for detecting whether storage battery is normally connected in UPS (uninterrupted power supply) or not |
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| CN103176100A true CN103176100A (en) | 2013-06-26 |
| CN103176100B CN103176100B (en) | 2015-01-07 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078716A (en) * | 2014-07-14 | 2014-10-01 | 东莞市西奥计算机智能科技有限公司 | Battery charging method and processor |
| CN104391186A (en) * | 2014-07-02 | 2015-03-04 | 广东易事特电源股份有限公司 | UPS charging board fault detection machine and UPS charging board fault detection method and device |
| CN107817418A (en) * | 2017-09-29 | 2018-03-20 | 漳州科华技术有限责任公司 | A kind of detection method and system of battery connection status |
| CN109660006A (en) * | 2019-01-23 | 2019-04-19 | 珠海市微半导体有限公司 | A kind of charging method for the method and robot whether detection rechargeable battery accesses |
| CN111929619A (en) * | 2020-08-17 | 2020-11-13 | 深圳市泰昂能源科技股份有限公司 | Detection circuit and detection method for battery connection abnormity |
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| CN102904332A (en) * | 2012-10-24 | 2013-01-30 | 三维通信股份有限公司 | Backup battery managing and controlling method of monitoring circuit of repeater |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104391186A (en) * | 2014-07-02 | 2015-03-04 | 广东易事特电源股份有限公司 | UPS charging board fault detection machine and UPS charging board fault detection method and device |
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| CN107817418A (en) * | 2017-09-29 | 2018-03-20 | 漳州科华技术有限责任公司 | A kind of detection method and system of battery connection status |
| CN109660006A (en) * | 2019-01-23 | 2019-04-19 | 珠海市微半导体有限公司 | A kind of charging method for the method and robot whether detection rechargeable battery accesses |
| CN111929619A (en) * | 2020-08-17 | 2020-11-13 | 深圳市泰昂能源科技股份有限公司 | Detection circuit and detection method for battery connection abnormity |
| CN111929619B (en) * | 2020-08-17 | 2022-09-06 | 深圳市泰昂能源科技股份有限公司 | Detection circuit and detection method for battery connection abnormity |
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| Publication number | Publication date |
|---|---|
| CN103176100B (en) | 2015-01-07 |
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