CN103730942A - System for managing storage batteries of power distribution network - Google Patents
System for managing storage batteries of power distribution network Download PDFInfo
- Publication number
- CN103730942A CN103730942A CN201310713489.2A CN201310713489A CN103730942A CN 103730942 A CN103730942 A CN 103730942A CN 201310713489 A CN201310713489 A CN 201310713489A CN 103730942 A CN103730942 A CN 103730942A
- Authority
- CN
- China
- Prior art keywords
- comparator
- output
- triode
- received
- phase input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention provides a system for managing storage batteries of a power distribution network, and relates to the technical field of power distribution networks. According to the technical scheme, the system can simplify the structure of circuits and reduce cost of the circuits. The system comprises the sampling circuit, the overload protecting circuit, the charging circuit, the activation control circuit and the battery retreat circuit. The sampling circuit is used for supplying sampling signals to the overload protecting circuit and the charging circuit. The overload protecting circuit is used for comparing the sampling signals with a reference voltage and directly determining whether to stop supplying power to the storage batteries or not according to a comparison result. The charging circuit is used for comparing the sampling signals with a threshold voltage and determining whether to switch off or switch on power output of a power supply circuit according to a comparison result, and then constant current charging of the storage batteries is achieved. The activation control circuit is used for controlling the storage batteries to be discharged and charged according to external input signals. The battery retreat circuit is used for controlling the storage batteries to supply power to loads or stop supplying power to the loads according to the external input signals. The system is suitable for managing the storage batteries of the power distribution network.
Description
Technical field
The present invention relates to power distribution network technology, particularly relate to a kind of technology of battery management system of power distribution network.
Background technology
Storage battery is the important component part of DC power-supply system in distribution network system; it is as DC power supply; mainly undertaking as electrical secondary system load in electric power system provides safety, stable, reliable electric power safeguard, guaranteeing the normal operation of protection, monitoring, communication equipment.Therefore, the stability of storage battery, discharge capacity and maintenance management at ordinary times etc. are to guaranteeing that the safe operation tool of distribution network is of great significance.Facts have proved, batteries is adopted to reliable and effective Managed Solution, is extremely important in standby power system and an important step often being ignored by people.
In current power distribution network, be all adopt single-chip microcomputer or adopt special-purpose storage battery control chip to carry out management of battery, this makes the circuit structure more complicated of the battery management system in power distribution network, also brings the rising of production and debugging cost simultaneously.
Summary of the invention
For the defect existing in above-mentioned prior art, technical problem to be solved by this invention is to provide the battery management system of a kind of circuit structure power distribution network simple and reliable, with low cost.
In order to solve the problems of the technologies described above, the battery management system of a kind of power distribution network provided by the present invention, relates to the storage battery of power distribution network and the power supply circuits of storage battery;
Described power supply circuits have three-phase power input end mouth L, N, PE and DC power output end mouth, in power supply circuits, be provided with for controlling the power supply output control circuit of its DC power output end mouth power output, described power supply output control circuit has the output power end FB for received output power control signal;
It is characterized in that: this system has reference voltage terminal REF, this system comprises that sample circuit, overload protecting circuit, charging circuit, activation control circuit, battery are thrown and moves back circuit;
Described sample circuit comprises the first sample resistance 1R6, the second sample resistance 1R7;
The DC negative supply output GND of described power supply circuits receives the negative pole B2-of storage battery successively through the first sample resistance 1R6, the second sample resistance 1R7;
Described overload protecting circuit comprises sampled signal amplifier U1A, the first sampled signal comparator U2A, the first hysteresis comparator U2B, the second sampled signal comparator U3B;
The two ends that the normal phase input end of described sampled signal amplifier U1A and inverting input are received respectively the first sample resistance 1R6, the output of sampled signal amplifier U1A is received the normal phase input end of the first sampled signal comparator U2A, the first sampled signal comparator U2A anti-phase input termination reference voltage terminal REF, the output of the first sampled signal comparator U2A is received the normal phase input end of the first hysteresis comparator U2B, the anti-phase input termination reference voltage terminal REF of the first hysteresis comparator U2B, the normal phase input end of output termination the second sampled signal comparator U3B of the first hysteresis comparator U2B, the anti-phase input termination reference voltage terminal REF of the second sampled signal comparator U3B, the output of the second sampled signal comparator U3B is received the output power end FB of power supply circuits through a control signal isolation optocoupler PC1A,
Described charging circuit comprises charging signals amplifier U1B, the second hysteresis comparator U4B, charging signals comparator U3A;
The two ends that the normal phase input end of described charging signals amplifier U1B and inverting input are received respectively the second sample resistance 1R7, the normal phase input end of the second hysteresis comparator U4B is received respectively the output of charging signals amplifier U1B and the normal phase input end of the second sampled signal comparator U3B, the anti-phase input termination reference voltage terminal REF of the second hysteresis comparator U4B, the output termination of the second hysteresis comparator U4B is received the inverting input of charging signals comparator U3A through a clamp diode 3D3, the normal phase input end of charging signals comparator U3A is received the DC positive power output VO1 of power supply circuits, the output of charging signals comparator U3A is received the output power end FB of power supply circuits through control signal isolation optocoupler PC1A,
Described activation control circuit comprises that activation signals comparator U5B, the 3rd hysteresis comparator U5A, activation signals triode 4Q1, activation enable triode 4Q2, the first relay J D1, and activation control circuit has activation signals input HK, signal input part HG is exited in activation;
The normal phase input end of described activation signals comparator U5B meets the DC positive power output VO of power supply circuits, the anti-phase input termination reference voltage terminal REF of activation signals comparator U5B, the normal phase input end of output termination the 3rd hysteresis comparator U5A of activation signals comparator U5B;
Described activation signals input HK receives the base stage of activation signals triode 4Q1, the grounded emitter of activation signals triode 4Q1, and the collector electrode of activation signals triode 4Q1 is received the normal phase input end of the 3rd hysteresis comparator U5A;
The normal phase input end that signal input part HG receives the 3rd hysteresis comparator U5A is exited in described activation;
The anti-phase input termination reference voltage terminal REF of described the 3rd hysteresis comparator U5A, the output of the 3rd hysteresis comparator U5A is received respectively the normal phase input end of charging signals comparator U3A and the base stage that activation enables triode 4Q2, activation enables the grounded emitter of triode 4Q2, the collector electrode that activation enables triode 4Q2 is received the control end of the first relay J D1, and the DC positive power output VO1 of power supply circuits meets a discharge resistance RL through the first relay J D1;
Described battery is thrown and is moved back circuit and comprise and drop into signal triode 5Q1, drop into and enable triode 5Q2, the 4th hysteresis comparator U4A, the second relay J D2, direct current stabilizer 5U1, and battery is thrown and moved back circuit and have that battery drops into signal input part BK, battery exits signal input part BG;
The anodal B1+ of described storage battery receives the DC positive power output VO of power supply circuits through the second relay J D2, the DC positive power output VOR of the anodal B1+ of storage battery and power supply circuits is by diode and after connecing, receive the input of direct current stabilizer 5U1, and the output of direct current stabilizer 5U1 is received reference voltage terminal REF;
Described battery drops into signal input part BK and receives the base stage that drops into signal triode 5Q1, drop into the grounded emitter of signal triode 5Q1, drop into the collector electrode of signal triode 5Q1 and receive the base stage that input enables triode 5Q2, input enables the grounded emitter of triode 5Q2, drops into the control end that the collector electrode enable triode 5Q2 is received the second relay J D2;
Described battery exits signal input part BG and receives the base stage that input enables triode 5Q2;
The normal phase input end of described the 4th hysteresis comparator U4A is received the DC positive power output VO1 of power supply circuits, the anti-phase input termination reference voltage terminal REF of the 4th hysteresis comparator U4A, the output of the 4th hysteresis comparator U4A is received and is dropped into the base stage that enables triode 5Q2.
The battery management system of power distribution network provided by the invention; its circuit structure adopts the device architectures such as discharge circuit, electric capacity, resistance, diode to form; circuit structure is simple and reliable, with low cost; compare traditional power distribution network battery management system; various control interface is externally provided and adopts pure hardware controls, the measure of employing kinds of protect, while supporting the use with smart machine, have great practical value.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of battery management system of the power distribution network of the embodiment of the present invention;
Fig. 2, Fig. 3, Fig. 4 are the power supply circuits of storage battery;
Fig. 5 is the circuit diagram of the sample circuit in the battery management system of power distribution network of the embodiment of the present invention;
Fig. 6 is the circuit diagram of the overload protecting circuit in the battery management system of power distribution network of the embodiment of the present invention;
Fig. 7 is the circuit diagram of the charging circuit in the battery management system of power distribution network of the embodiment of the present invention;
Fig. 8 is the circuit diagram of the activation control circuit in the battery management system of power distribution network of the embodiment of the present invention;
Fig. 9 is that the battery in the battery management system of power distribution network of the embodiment of the present invention is thrown the circuit diagram that moves back circuit.
Embodiment
Below in conjunction with accompanying drawing explanation, embodiments of the invention are described in further detail, but the present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar variation thereof, all should list protection scope of the present invention in.
As shown in Fig. 1-Fig. 9, the battery management system of a kind of power distribution network that the embodiment of the present invention provides, relates to the storage battery of power distribution network and the power supply circuits of storage battery;
As Figure 1-Figure 4, described power supply circuits are prior art, power supply circuits have three-phase power input end mouth (L, N, PE) and DC power output end mouth, in power supply circuits, be provided with for controlling the power supply output control circuit of its DC power output end mouth power output, described power supply output control circuit has the output power end FB for received output power control signal;
Described power supply output control circuit comprises that power switch sub-loop, PWM control sub-loop, EMC filtering sub-loop, bridge rectifier sub-loop, power transfer sub-loop, output filtering sub-loop;
It is characterized in that: this system has reference voltage terminal REF, this system comprises that sample circuit, overload protecting circuit, charging circuit, activation control circuit, battery are thrown and moves back circuit;
As shown in Figure 5, described sample circuit comprises the first sample resistance 1R6, the second sample resistance 1R7;
The DC negative supply output GND of described power supply circuits receives the negative pole B2-of storage battery successively through the first sample resistance 1R6, the second sample resistance 1R7;
Total output current sample resistance that the first sample resistance 1R6 is power supply circuits, the second sample resistance 1R7 is the sampling of charge in batteries electric current, reverse protection diode 1D3 power supply circuits without input, load by battery-driven situation under, avoid extra power loss on resistance 1R3,1R4,1R5;
As shown in Figure 6, described overload protecting circuit comprises sampled signal amplifier U1A, the first sampled signal comparator U2A, the first hysteresis comparator U2B, the second sampled signal comparator U3B;
The two ends that the normal phase input end of described sampled signal amplifier U1A and inverting input are received respectively the first sample resistance 1R6, the output of sampled signal amplifier U1A is received the normal phase input end of the first sampled signal comparator U2A, the first sampled signal comparator U2A anti-phase input termination reference voltage terminal REF, the output of the first sampled signal comparator U2A is received the normal phase input end of the first hysteresis comparator U2B through a RC filter circuit, the anti-phase input termination reference voltage terminal REF of the first hysteresis comparator U2B, the normal phase input end of output termination the second sampled signal comparator U3B of the first hysteresis comparator U2B, the anti-phase input termination reference voltage terminal REF of the second sampled signal comparator U3B, the output of the second sampled signal comparator U3B is received the output power end FB of power supply circuits through a control signal isolation optocoupler PC1A,
The reference voltage that the voltage signal that the first sample resistance 1R6 generates is amplified into the first sampled signal comparator U2A and reference voltage terminal REF through sampled signal amplifier U1A homophase compares, its output is after RC filtering is processed, entering the first hysteresis comparator U2B compares again, the reference voltage that the output of the first hysteresis comparator U2B finally accesses the second sampled signal comparator U3B and reference voltage terminal REF by diode 2D4 directly compares, and whether the direct decision of its comparative result turn-offs the power stage of power supply circuits;
As shown in Figure 7, described charging circuit comprises charging signals amplifier U1B, the second hysteresis comparator U4B, charging signals comparator U3A;
The two ends that the normal phase input end of described charging signals amplifier U1B and inverting input are received respectively the second sample resistance 1R7, the normal phase input end of the second hysteresis comparator U4B is received respectively the output of charging signals amplifier U1B and the normal phase input end of the second sampled signal comparator U3B, the anti-phase input termination reference voltage terminal REF of the second hysteresis comparator U4B, the output termination of the second hysteresis comparator U4B is received the inverting input of charging signals comparator U3A through a clamp diode 3D3, the normal phase input end of charging signals comparator U3A is received the DC positive power output VO1 of power supply circuits, the output of charging signals comparator U3A is received the output power end FB of power supply circuits through control signal isolation optocoupler PC1A,
Charging current forms pressure reduction through the second sample resistance 1R7, access the second hysteresis comparator U4B after amplifying by charging signals amplifier U1B homophase, introduce the in-phase end signal of the U3B in the second sampled signal comparator U3B simultaneously, backward end due to the second sampled signal comparator U3B is reference voltage this moment, so the constant current charge current value of storage battery is:
Ic1=?（A1*Ic1/A2）*（A2+A3）=A4；
In formula, the constant current charge current value that Ic1 is storage battery, A1 is the resistance of resistance 1R7, and A2 is the resistance of resistance 3R2, and A3 is the resistance of resistance 3R3, and A4 is the reference voltage value of reference voltage terminal REF;
When system charging current is a bit larger tham Ic1, the output voltage that constant current charge current value computing formula by above-mentioned storage battery can converse charging signals amplifier U1B is greater than threshold voltage (the reverse voltage value of the second sampled signal comparator U3B), can turn-off the power stage of power supply circuits thus, then the voltage of the DC positive power output VOR of power supply circuits starts to decline, therefore charging current also declines, so the output voltage of charging signals amplifier U1B starts to be less than threshold voltage, the power stage of power supply circuits is restarted, so repeatedly can realize the constant current charge to storage battery,
In constant current charge process, battery tension constantly raises, when the DC positive power output VO1 of power supply circuits reaches the voltage of main circuit setting, constant current charge ends, because the normal phase input end voltage of the second sampled signal comparator U3B is now less than threshold voltage (the reverse voltage value of the second sampled signal comparator U3B), therefore the power stage of power supply circuits can not be turned off, and the output of the DC positive power output VO1 of power supply circuits is invariable, enters pressure limiting floating charge state, yet the normal phase input end voltage of the second sampled signal comparator U3B (output voltage of charging signals amplifier U1B) is still greater than the setting voltage value of the second hysteresis comparator U4B inverting input (setting voltage value of the second hysteresis comparator U4B inverting input can pass through resistance 3R6 this moment, 3R7 parameter regulates), so the second hysteresis comparator U4B output is still high level, therefore the reference voltage (supposing that this magnitude of voltage is REF ') of the inverting input of charging signals comparator U3A is slightly larger than the reference voltage value of reference voltage terminal REF, at this, need regulate by calculating magnitude of voltage (the resistance 3R13 of charging signals comparator U3A normal phase input end, 3R14, 3R17 resistance dividing potential drop relation), make it the reference voltage REF ' that is less than the reference voltage value of reference voltage terminal REF or is less than the inverting input of charging signals comparator U3A,
If the voltage that the normal phase input end of charging signals comparator U3A is set be less than charging signals comparator U3A inverting input reference voltage REF ' and be greater than the reference voltage value of reference voltage terminal REF, while entering pressure limiting floating charge, when its charging current is less than the threshold values (can regulate by setting the multiplication factor of charging signals amplifier U1B) of setting, the normal phase input end magnitude of voltage of the second hysteresis comparator U4B is less than the reference voltage value of reference voltage terminal REF, make the second hysteresis comparator U4B reversion, now the output voltage of the second hysteresis comparator U4B is 0, clamping action due to clamp diode 3D3, make the reverse reference voltage of charging signals comparator U3A drop to the reference voltage value of reference voltage terminal REF, and the normal phase input end voltage of charging signals comparator U3A is greater than the reference voltage value of reference voltage terminal REF this moment, therefore charging signals comparator U3A is output as high level, the power stage of power supply circuits is turn-offed,
If the voltage that the normal phase input end of charging signals comparator U3A is set is less than the reference voltage value of reference voltage terminal REF, according to above-mentioned principle, pressure limiting floating charge process, all the time can not turn-off the power stage of power supply circuits, even if charging current is 0, also remain that the power stage of power supply circuits is constant;
As shown in Figure 8, described activation control circuit comprises that activation signals comparator U5B, the 3rd hysteresis comparator U5A, activation signals triode 4Q1, activation enable triode 4Q2, the first relay J D1, and activation control circuit has activation signals input HK, signal input part HG is exited in activation;
The normal phase input end of described activation signals comparator U5B meets the DC positive power output VO of power supply circuits, the anti-phase input termination reference voltage terminal REF of activation signals comparator U5B, the normal phase input end of output termination the 3rd hysteresis comparator U5A of activation signals comparator U5B;
Described activation signals input HK receives the base stage of activation signals triode 4Q1, the grounded emitter of activation signals triode 4Q1, and the collector electrode of activation signals triode 4Q1 is received the normal phase input end of the 3rd hysteresis comparator U5A;
The normal phase input end that signal input part HG receives the 3rd hysteresis comparator U5A is exited in described activation;
The anti-phase input termination reference voltage terminal REF of described the 3rd hysteresis comparator U5A, the output of the 3rd hysteresis comparator U5A is received respectively the normal phase input end of charging signals comparator U3A and the base stage that activation enables triode 4Q2, activation enables the grounded emitter of triode 4Q2, the collector electrode that activation enables triode 4Q2 is received the control end of the first relay J D1, and the DC positive power output VO1 of power supply circuits meets a discharge resistance RL through the first relay J D1;
In distribution automation system, operating equipment need to have reliable back-up source as assurance, so that after major network dead electricity, its secondary smart machine still can running operation, therefore more outstanding to the reliability requirement of back-up source, because storage battery adopts plumbic acid electrolyte material as energy-accumulating medium, battery pole plates meeting passivation after long-time running, therefore must there be effective means regularly to carry out activation discharge to it, extend its useful life, can be to activation control circuit input activation enabling signal by activation signals input HK, by activation, exit signal input part HG and can exit signal to activation control circuit input activation,
During to activation control circuit input activation enabling signal, activation signals input HK is set low to level, thereby draw high the collector electrode level of activation signals triode 4Q1, make the normal phase input end of the 3rd hysteresis comparator U5A be greater than the reference voltage of reference voltage terminal REF, thereby make the 3rd hysteresis comparator U5A be output as high level, make activation enable triode 4Q2 and trigger the first relay J D1 relay closes, guiding discharge resistance R L is directly added on the DC positive power output VO1 of power supply circuits, in the time of battery discharging, because the output of the 3rd hysteresis comparator U5A is high level, after RC filtering, " fangdianbisuo " signal is also high level, this " fangdianbisuo " signal inputs to the normal phase input end of charging signals comparator U3A, the output signal " shutoffout " that makes charging signals comparator U3A is high level, thereby order about control signal isolation optocoupler PC1A action, the power output of power supply circuits is turn-offed, thus in storage battery activation process, the power output of power supply circuits is turned off, thereby realize discharging function,
In battery discharging process, its terminal voltage constantly declines, when reaching the threshold values of setting, (can pass through resistance 4R7, 4R8, 4R9 regulates) time, the normal phase input end voltage of the 3rd hysteresis comparator U5A is less than the reference voltage of reference voltage terminal REF, now the 3rd hysteresis comparator U5A is output as low level, by the normal phase input end of the 3rd hysteresis comparator U5A after resistance 4R11 dividing potential drop, be less than the reference voltage of reference voltage terminal REF, relatively be output as low, the first relay J D1 action is returned, the power stage of power supply circuits is restarted, storage battery enters corresponding charged state,
In battery discharging process, while exiting signal to activation control circuit input activation, activation is exited to signal input part HG and set low level, according to above-mentioned principle, storage battery reenters corresponding charged state;
As shown in Figure 9, described battery is thrown and is moved back circuit and comprise and drop into signal triode 5Q1, drop into and enable triode 5Q2, the 4th hysteresis comparator U4A, the second relay J D2, direct current stabilizer 5U1, and battery is thrown and moved back circuit and have that battery drops into signal input part BK, battery exits signal input part BG;
The anodal B1+ of described storage battery receives the DC positive power output VO of power supply circuits through the second relay J D2, the DC positive power output VOR of the anodal B1+ of storage battery and power supply circuits is by diode and after connecing, receive the input of direct current stabilizer 5U1, and the output of direct current stabilizer 5U1 is received reference voltage terminal REF;
Described battery drops into signal input part BK and receives the base stage that drops into signal triode 5Q1, drop into the grounded emitter of signal triode 5Q1, drop into the collector electrode of signal triode 5Q1 and receive the base stage that input enables triode 5Q2, input enables the grounded emitter of triode 5Q2, drops into the control end that the collector electrode enable triode 5Q2 is received the second relay J D2;
Described battery exits signal input part BG and receives the base stage that input enables triode 5Q2;
The normal phase input end of described the 4th hysteresis comparator U4A is received the DC positive power output VO1 of power supply circuits, the anti-phase input termination reference voltage terminal REF of the 4th hysteresis comparator U4A, the output of the 4th hysteresis comparator U4A is received and is dropped into the base stage that enables triode 5Q2.
In distribution automation, secondary device is before putting into operation, all must carry out the work such as combined test, debugging, therefore to storage battery power supply loop, must there is reliable throwing to move back administrative mechanism, by battery, dropping into signal input part BK can throw and to move back circuit input battery and drop into signal to battery, exits signal input part BG can throw and move back circuit input battery and exit signal to battery by battery;
The DC positive power output VOR of the anodal B1+ of storage battery and power supply circuits, by diode and after connecing, in conjunction with direct current stabilizer 5U1, produces working power VCC and reference data voltage;
Before distribution network systems puts into operation, due to without civil power, so DC positive power output VOR no-output of power supply circuits, if being dropped into signal input part BK, battery sets low level, dropping into the collector voltage of signal triode 5Q1 raises, make to drop into the base current increase that enables triode 5Q2, its collector current also amplifies thereupon, thereby drive the second relay J D2 action, the anodal B1+ of storage battery is put on the DC positive power output VO of power supply circuits, after storage battery drops into, its voltage-drop loading to the holding wire of the DC positive power output VO1 of power supply circuits (by setting resistance 5R7, 5R8, the resistance of 5R9 can make it be greater than reference voltage), so the 4th hysteresis comparator U4A is output as high level, thereby replace " battery drops into signal input part BK ", input enables triode 5Q2 and drives the signal of the second relay J D2 to be maintained,
By setting resistance 5R7, 5R8, the resistance of 5R9, its dividing potential drop is closed and tie up to proper range, it is adjustable its resetting ratio, when storage battery is powered to distribution secondary device temporarily, its voltage is slow decreasing, when battery discharging to set voltage time, characteristic in conjunction with the 4th hysteresis comparator U4A, regulating resistance 5R7, 5R8, 5R9, 5R10, resistance relation between 5R11, while making the normal phase input end voltage of the 4th hysteresis comparator U4A be less than threshold values (reference voltage of reference voltage terminal REF), the output of the 4th hysteresis comparator U4A is low level, then turn-off to drop into and enable triode 5Q2, the second relay J D2 action is returned, storage battery exits the power supply to load, thereby protection battery is not by overdischarge, safeguard its normal operating characteristic,
If battery is exited to signal input part BG, set low level, according to above-mentioned principle, storage battery can exit the power supply to load;
When distribution main system puts into operation, because civil power produces, the power stage of power supply circuits is restarted, the DC positive power output VO1 output dc voltage of power supply circuits, and according to above-mentioned principle, storage battery can drop into charging automatically.
The embodiment of the present invention can make to obtain maximum performance the actual life of storage battery, under civil power deletion condition, can scene or remote control input battery throw and move back signal and select whether by the Power supply secondary device of storage battery, so that equipment operation debugging or equipment exit; During normal operation, after dropping into storage battery, system power supply can be carried out constant current charge and pressure limiting floating charge to it, and its charging current and voltage can be set by resistance programming according to battery capacity; Storage battery carries out discharge activation in the effective situation of civil power, and user can regularly activate by setting soak time interval, or Remote or manually activation on the spot.
Claims (1)
1. a battery management system for power distribution network, relates to the storage battery of power distribution network and the power supply circuits of storage battery;
Described power supply circuits have three-phase power input end mouth (L, N, PE) and DC power output end mouth, in power supply circuits, be provided with for controlling the power supply output control circuit of its DC power output end mouth power output, described power supply output control circuit has the output power end (FB) for received output power control signal;
It is characterized in that: this system has reference voltage terminal (REF), this system comprises that sample circuit, overload protecting circuit, charging circuit, activation control circuit, battery are thrown and moves back circuit;
Described sample circuit comprises the first sample resistance (1R6), the second sample resistance (1R7);
The DC negative supply output (GND) of described power supply circuits is received the negative pole (B2-) of storage battery successively through the first sample resistance (1R6), the second sample resistance (1R7);
Described overload protecting circuit comprises sampled signal amplifier (U1A), the first sampled signal comparator (U2A), the first hysteresis comparator (U2B), the second sampled signal comparator (U3B);
The two ends that the normal phase input end of described sampled signal amplifier (U1A) and inverting input are received respectively the first sample resistance (1R6), the output of sampled signal amplifier (U1A) is received the normal phase input end of the first sampled signal comparator (U2A), the first sampled signal comparator (U2A) anti-phase input termination reference voltage terminal (REF), the output of the first sampled signal comparator (U2A) is received the normal phase input end of the first hysteresis comparator (U2B), the anti-phase input termination reference voltage terminal (REF) of the first hysteresis comparator (U2B), the normal phase input end of the output termination second sampled signal comparator (U3B) of the first hysteresis comparator (U2B), the anti-phase input termination reference voltage terminal (REF) of the second sampled signal comparator (U3B), the output of the second sampled signal comparator (U3B) is received the output power end (FB) of power supply circuits through a control signal isolation optocoupler (PC1A),
Described charging circuit comprises charging signals amplifier (U1B), the second hysteresis comparator (U4B), charging signals comparator (U3A);
The two ends that the normal phase input end of described charging signals amplifier (U1B) and inverting input are received respectively the second sample resistance (1R7), the normal phase input end of the second hysteresis comparator (U4B) is received respectively the output of charging signals amplifier (U1B) and the normal phase input end of the second sampled signal comparator (U3B), the anti-phase input termination reference voltage terminal (REF) of the second hysteresis comparator (U4B), the output termination of the second hysteresis comparator (U4B) is received the inverting input of charging signals comparator (U3A) through a clamp diode (3D3), the normal phase input end of charging signals comparator (U3A) is received the DC positive power output (VO1) of power supply circuits, the output of charging signals comparator (U3A) isolates through control signal the output power end (FB) that optocoupler (PC1A) is received power supply circuits,
Described activation control circuit comprises that activation signals comparator (U5B), the 3rd hysteresis comparator (U5A), activation signals triode (4Q1), activation enable triode (4Q2), the first relay (JD1), and activation control circuit has activation signals input (HK), signal input part (HG) is exited in activation;
The normal phase input end of described activation signals comparator (U5B) connects the DC positive power output (VO) of power supply circuits, the anti-phase input termination reference voltage terminal (REF) of activation signals comparator (U5B), the normal phase input end of output termination the 3rd hysteresis comparator (U5A) of activation signals comparator (U5B);
Described activation signals input (HK) is received the base stage of activation signals triode (4Q1), the grounded emitter of activation signals triode (4Q1), and the collector electrode of activation signals triode (4Q1) is received the normal phase input end of the 3rd hysteresis comparator (U5A);
The normal phase input end that signal input part (HG) is received the 3rd hysteresis comparator (U5A) is exited in described activation;
The anti-phase input termination reference voltage terminal (REF) of described the 3rd hysteresis comparator (U5A), the output of the 3rd hysteresis comparator (U5A) is received respectively the normal phase input end of charging signals comparator (U3A) and the base stage that activation enables triode (4Q2), activation enables the grounded emitter of triode (4Q2), the collector electrode that activation enables triode (4Q2) is received the control end of the first relay (JD1), and the DC positive power output (VO1) of power supply circuits connects a discharge resistance (RL) through the first relay (JD1);
Described battery is thrown and is moved back circuit and comprise and drop into signal triode (5Q1), drop into and enable triode (5Q2), the 4th hysteresis comparator (U4A), the second relay (JD2), direct current stabilizer (5U1), and battery is thrown and moved back circuit and have that battery drops into signal input part (BK), battery exits signal input part (BG);
The positive pole of described storage battery (B1+) is received the DC positive power output (VO) of power supply circuits through the second relay (JD2), the DC positive power output (VOR) of the positive pole of storage battery (B1+) and power supply circuits is by diode and after connecing, receive the input of direct current stabilizer (5U1), and the output of direct current stabilizer (5U1) is received reference voltage terminal (REF);
Described battery drops into signal input part (BK) and receives the base stage that drops into signal triode (5Q1), drop into the grounded emitter of signal triode (5Q1), drop into the collector electrode of signal triode (5Q1) and receive the base stage that input enables triode (5Q2), input enables the grounded emitter of triode (5Q2), drops into the control end that the collector electrode enable triode (5Q2) is received the second relay (JD2);
Described battery exits signal input part (BG) and receives the base stage that input enables triode (5Q2);
The normal phase input end of described the 4th hysteresis comparator (U4A) is received the DC positive power output (VO1) of power supply circuits, the anti-phase input termination reference voltage terminal (REF) of the 4th hysteresis comparator (U4A), the output of the 4th hysteresis comparator (U4A) is received and is dropped into the base stage that enables triode (5Q2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310713489.2A CN103730942B (en) | 2013-12-20 | 2013-12-20 | The battery management system of power distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310713489.2A CN103730942B (en) | 2013-12-20 | 2013-12-20 | The battery management system of power distribution network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103730942A true CN103730942A (en) | 2014-04-16 |
| CN103730942B CN103730942B (en) | 2017-06-16 |
Family
ID=50454918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310713489.2A Active CN103730942B (en) | 2013-12-20 | 2013-12-20 | The battery management system of power distribution network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103730942B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953378A (en) * | 2017-02-27 | 2017-07-14 | 衢州职业技术学院 | Self adaptation photovoltaic mains hybrid accumulator cell charging and discharging controller |
| CN107040033A (en) * | 2017-05-25 | 2017-08-11 | 河南迎基太阳能科技有限公司 | A kind of charging circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201663471U (en) * | 2009-11-12 | 2010-12-01 | 中山市鸿泰电子有限公司 | Battery charging device |
| EP2602922A2 (en) * | 2011-12-08 | 2013-06-12 | O2 Micro, Inc. | Power management system for Universal Serial Bus |
| CN203722321U (en) * | 2013-12-20 | 2014-07-16 | 上海紫通信息科技有限公司 | Storage battery management system of power distribution network |
-
2013
- 2013-12-20 CN CN201310713489.2A patent/CN103730942B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201663471U (en) * | 2009-11-12 | 2010-12-01 | 中山市鸿泰电子有限公司 | Battery charging device |
| EP2602922A2 (en) * | 2011-12-08 | 2013-06-12 | O2 Micro, Inc. | Power management system for Universal Serial Bus |
| CN203722321U (en) * | 2013-12-20 | 2014-07-16 | 上海紫通信息科技有限公司 | Storage battery management system of power distribution network |
Non-Patent Citations (1)
| Title |
|---|
| 邱浩等: "基于MS9S12XET256MAL单片机的电动汽车电池管理系统设计", 《深圳职业技术学院学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953378A (en) * | 2017-02-27 | 2017-07-14 | 衢州职业技术学院 | Self adaptation photovoltaic mains hybrid accumulator cell charging and discharging controller |
| CN106953378B (en) * | 2017-02-27 | 2023-10-27 | 衢州职业技术学院 | Self-adaptive photovoltaic commercial power complementary storage battery charge-discharge controller |
| CN107040033A (en) * | 2017-05-25 | 2017-08-11 | 河南迎基太阳能科技有限公司 | A kind of charging circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103730942B (en) | 2017-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101432942B (en) | Power surge filtering in over-current and short circuit protection | |
| JP2005518773A (en) | Hybrid power supply | |
| CN106160161B (en) | A kind of solar energy power source apparatus and control method | |
| CN107681885A (en) | A kind of power-down retaining circuit and method | |
| CN111769630B (en) | Electric power low-voltage direct-current redundant power supply system | |
| CN105429279A (en) | Power supply system and power supply method for electric equipment | |
| CN102280924A (en) | Uninterrupted power supply system for relay protection device | |
| CN104505905A (en) | Single-charged and series-discharged lithium battery pack | |
| CN102647011A (en) | Buck-boost-integrated wide-range-output automatic-load-detection mobile power circuit | |
| CN203434637U (en) | Energy storage system | |
| CN101969212A (en) | Lithium battery charging management chip powered by solar energy | |
| CN101119085B (en) | PWM solar power control module of PWM solar controller | |
| CN103730942A (en) | System for managing storage batteries of power distribution network | |
| CN102270877A (en) | Power supply system | |
| CN203722321U (en) | Storage battery management system of power distribution network | |
| CN205141785U (en) | Digital intelligent charging ware based on single chip microcomputer control | |
| CN203813423U (en) | Universal protection system for lithium battery | |
| CN203933057U (en) | A kind of portable multi-function portable power source | |
| CN202435059U (en) | Lithium cell charging and discharging management circuit | |
| CN104868543B (en) | A kind of intelligent battery charger of wide input voltage range | |
| US20110175566A1 (en) | Charge apparatus and method using the same | |
| WO2020135351A1 (en) | Charging/discharging apparatus, control method and apparatus, battery apparatus, and storage medium | |
| CN111835048B (en) | Charging and discharging switching circuit and electronic equipment | |
| US20050212483A1 (en) | Charging/discharging management system for lithium battery packs | |
| CN202872419U (en) | LED emergency lamp battery management device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Lei Inventor after: Zhou Wenhua Inventor after: Zhao Yong Inventor after: Wang Chengxiu Inventor before: Zhou Wenhua Inventor before: Zhao Yong Inventor before: Wang Chengxiu |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHOU WENHUA ZHAO YONG WANG CHENGXIU TO: ZHOU LEI ZHOU WENHUA ZHAO YONG WANG CHENGXIU |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |