CN104600800A - Energy storing unit balancing circuit and energy storing unit with same - Google Patents
Energy storing unit balancing circuit and energy storing unit with same Download PDFInfo
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- CN104600800A CN104600800A CN201510015000.3A CN201510015000A CN104600800A CN 104600800 A CN104600800 A CN 104600800A CN 201510015000 A CN201510015000 A CN 201510015000A CN 104600800 A CN104600800 A CN 104600800A
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- 238000004891 communication Methods 0.000 claims abstract description 94
- 238000005070 sampling Methods 0.000 claims abstract description 55
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000004146 energy storage Methods 0.000 claims description 208
- 238000009825 accumulation Methods 0.000 claims description 11
- 238000002955 isolation Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 abstract description 5
- 239000004020 conductor Substances 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 16
- 230000009897 systematic effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 2
- 230000023402 cell communication Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
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- H02J7/0021—
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- H02J7/0026—
Abstract
The invention discloses an energy storing unit balancing circuit and an energy storing unit with the balancing circuit. The balancing circuit is connected with an energy storing unit, comprising an information sampling circuit and an isolating DC-to-DC converter; when in charging and discharging, the state information of each energy storing unit in an energy storing system can be used for communicating through an energy and communication transmission conductor; a balancing module arranged in a microcontroller compares and processes the state information and performs balancing control so as to transfer the energy among the energy storing units through the energy and communication transmission conductors. With the adoption of the balancing circuit, the energy transfer and communication are performed in a form of a digital signal through the energy and communication transmission conductor, so that the simplicity and reliability of the circuit can be ensured while ensuring the mutual communication of single cells.
Description
Technical field
The invention belongs to battery technology field.
Background technology
Energy-storage units is due to the restriction of the factors such as monomer voltage, capacity, maximum current, great majority all adopt series-parallel one-tenth energy-storage system to carry out work in actual use, by the impact of the inconsistency of monomer energy-storage units and the impact of environmental factor, energy-storage system inside there will be single phenomenon only fallen behind, after the single situation that only falls of appearance, great majority are whole group of replacings, cause a large amount of waste.
In order to avoid there is single phenomenon only fallen behind, also occurred the intelligent battery with equalization function at present, it, by gathering the state information of each cell, controls each battery by means of the balance module in microcontroller and carries out energy trasfer.But, in existing technical scheme, cell only gathers the analog signal of a cell, the cell communication that cell can only be adjacent, and cell that can not be all with other communicates, so in actual use, consistency between cell still cannot ensure, in addition, the cell of present transmission of analogue signal, if a certain cell needs the cell all with other to communicate, needs additionally to increase circuit, cause the complexity of circuit structure like this, also reduce the reliability of work.
Summary of the invention
Technical problem to be solved by this invention is just to provide a kind of energy-storage units equalizing circuit and has the energy-storage system of this equalizing circuit, simplifies information transmission and Energy Transfer structure, improves the reliability of work.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of energy-storage units equalizing circuit, and this equalizing circuit is connected with energy-storage units, and this equalizing circuit includes
One intelligence sample circuit, for gathering the state information of energy-storage units and transferring to microcontroller;
One group of external terminal, comprising the power supply terminal be connected with the lead-out terminal of energy-storage units, and carrying out energy and the communication terminal of energy and communication transfer with other energy-storage units, described energy and communication terminal are by energy and communication transfer wire transmission electric energy and communication signal;
One isolated DC turns DC converter, is connected with communication terminal with microcontroller and energy, carries out the transmission of energy and communication for controlling energy and communication terminal;
In charge and discharge process, in energy-storage system, the state information of each energy-storage units carries out communication by energy and communication transfer wire, the balance module arranged in microcontroller compares process to state information, and carry out Balance route, energy is shifted between each energy-storage units by energy and communication transfer wire.
Preferably, this equalizing circuit also includes the protective circuit preventing energy and the short circuit of communication transfer wire.
Preferably, described protective circuit comprises a unilateal conduction module, and the plus end of described power supply terminal is connected with one end of unilateal conduction module, and the described other end of unilateal conduction module is connected with a terminal of communication terminal with the energy of equalizing circuit.
Preferably, this equalizing circuit also includes a non-isolation type direct-current and turns DC converter, and described non-isolation type direct-current turns DC converter and turns DC converter with power supply terminal and isolated DC and be connected.
Preferably, this equalizing circuit is also provided with input or the second communication terminal of outputting communication information, and described second communication terminal is connected with microcontroller, and in described second communication terminal and energy-storage system, the second communication terminal of other energy-storage units carries out communication.
Preferably, this equalizing circuit also comprises one and carries out the wireless transceiver circuit of communication with other energy-storage units, and one end of described wireless transceiver circuit is connected with microcontroller, and the other end of described wireless transceiver circuit is connected with dual-mode antenna.
Preferably, described equalizing circuit is external in energy-storage units outside, and the plus end of the power supply terminal of described equalizing circuit is connected with the anode of energy-storage units, and the negative terminal of the power supply terminal of described equalizing circuit is connected with the negative terminal of energy-storage units.
Preferably, described equalizing circuit is built in energy-storage units inside, described equalizing circuit is also provided with energy storage current sampling resistor or Hall element R3, one end of R3 is connected with the inner side negative terminal of energy-storage units, and the other end of R3 exports negative terminal with the outside of microcontroller analog-to-digital conversion pin, energy-storage units and is connected.
A kind of energy-storage system with equalizing circuit, this energy-storage system comprises plural energy-storage units, the equalizing circuit described in claim 1 to 8 any one is provided with in described energy-storage system, the quantity of described equalizing circuit is equal to or greater than energy-storage units quantity, when the quantity of described equalizing circuit equals the quantity of energy-storage units, described equalizing circuit adopts the pattern of series connection, forms the circuit ring of a complete circular power transfer and transfer of data; When the quantity of described equalizing circuit is greater than energy-storage units quantity, described equalizing circuit adopts series-parallel pattern, forms the circuit ring of the transfer of more than one complete circular power and transfer of data.
Preferably, described energy-storage system is series connection accumulation system or connection in series-parallel energy-storage system, and described series connection accumulation system is composed in series by two or more energy-storage units, and described connection in series-parallel energy-storage system is that two groups or more series connection accumulation system composes in parallel.
Energy-storage units equalizing circuit of the present invention, energy trasfer and communication energy and communication transfer wire due to transmit be digital signal while guaranteeing communicate mutually between cell, also guarantee the simplification and reliably of circuit.In addition, equalizing circuit can be built in energy-storage units inside and realize the integrated setting with energy-storage units, can ensure can carry out cascade between each energy-storage units, connecting line on all equalizers is without the need to accessing the major loop of energy-storage units, guarantee the consistency of the mode of connection between equalizer and equalizer, there will not be the mistake of wiring.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
Fig. 1 is energy-storage units equalization circuit embodiments 1 circuit diagram;
Fig. 2 is energy-storage units equalization circuit embodiments 2 circuit diagram;
Fig. 3 is that isolated DC turns DC converter figure;
Fig. 4 is external equalizing circuit series connection accumulation systematic schematic diagram;
Fig. 5 is built-in equalizing circuit series connection accumulation systematic schematic diagram;
Fig. 6 is connection in series-parallel equalizing circuit energy-storage system one schematic diagram;
Fig. 7 is connection in series-parallel equalizing circuit energy-storage system two schematic diagram;
Fig. 8 is series connection equalizing circuit energy-storage system schematic diagram (redundant system of (N number of) energy-storage units more than energy-storage units group);
Fig. 9 is series connection equalizing circuit energy-storage system (utilizing the second communication terminal to carry out communication) schematic diagram.
Embodiment
Circuit diagram below in conjunction with Fig. 1 illustrates energy-storage units equalization circuit embodiments 1.
Energy-storage units outside is connected on outside this energy-storage units equalizing circuit, in parallel with energy-storage units, it includes: a microcontroller, one voltage sampling circuit, one isolated DC turns DC converter, and a non-isolation type direct-current turns DC converter, one group of external terminal, comprising the power supply terminal be connected with the lead-out terminal of energy-storage units, and carry out energy and the communication terminal of energy and communication transfer with other energy-storage units in energy-storage system; Include current sampling circuit, temperature sampling circuit, the second communication terminal, wireless transceiver circuit, a performance state indicating circuit in addition.
The plus end of the power supply terminal of described equalizing circuit is connected with the anode of energy-storage travelling wave tube; The negative terminal of the power supply terminal of equalizing circuit is connected with the negative terminal of energy-storage travelling wave tube; The input that plus end and the non-isolation type direct-current of the power supply terminal of equalizing circuit turn DC converter is connected; Non-isolation type direct-current turns the DC converter other end and is connected with the negative terminal of the power supply terminal of equalizing circuit; Non-isolation type direct-current turns DC converter output and is connected with the input that isolated DC turns DC converter; The lead-out terminal of output and equalizing circuit that isolated DC turns DC converter is connected; The controlled terminal that isolated DC turns DC converter is connected with microcontroller.
The direct current of described isolated form turns
dC convertera kind of Universal Switching Power Supply circuit, as preferably, as shown in Figure 3, adopt the high push-pull type switching power circuit of voltage utilization as energy transform device, this device has a control end, receives the signal from microcontroller, makes converter can export a succession of communication signal.As preferably, control end turns by controlling direct current
dC converterbuilt-in HF switch pipe, exports burst communication signal, or turns direct current
dC converteroutput direct current signal modulate, outputting communication signal.The DC/DC energy boost propagation and transformation device of described non-isolation type is a kind of chopped mode booster circuit.
Described voltage sampling circuit is composed in series by voltage sample resistance R1 and voltage sample resistance R2 two divider resistances, and described voltage sample resistance R1 is connected with the plus end of power supply terminal, and described voltage sample resistance R2 is connected with the negative terminal of power supply terminal; The tie point of voltage sample resistance R1 and R2 is connected with an analog-to-digital conversion pin of microcontroller.
Described current sampling circuit comprises energy-storage units charging or discharging current sample circuit, input uniform current sampling circuit.Described energy-storage units charging or discharging current sample circuit and input uniform current sampling circuit are a kind of resistor-type current sample circuit or Hall isolation current sampling circuit, and this circuit signal may be used for the receiving function of communication signal through amplifying.
Described temperature sampling circuit comprises energy-storage units temperature sampling circuit, energy-storage units equalizing circuit temperature sampling circuit, lead-out terminal temperature sampling circuit.Described energy-storage units temperature sampling circuit comprises sampling resistor R11, RT1 of being embedded in energy-storage units inside, described sampling resistor R11 and RT1 connects, be provided with energy-storage units voltage control module in described microcontroller, described energy-storage units voltage control module is according to the charging/discharging voltage of energy-storage units temperature adjustment energy-storage units.Described sampling resistor R11, RT1 are a kind of negative temperature resistance or a kind of PN junction device.Described energy-storage units equalizing circuit temperature sampling circuit comprises sampling resistor R12, RT2 of being installed on equalizing circuit circuit board, described sampling resistor R12 and RT2 connects, power component control module is provided with in described microcontroller, when the temperature of equalizing circuit circuit board reaches dangerous values, described power component control module controls the power component exported.Described lead-out terminal monitoring temperature sample circuit comprises sampling resistor R13, R14, RT3, RT4, described sampling resistor R13 and RT3 connects, described sampling resistor R14 and RT4 connects, described sampling resistor R13, R14, RT3, RT4 are arranged on pole or the terminal side of energy-storage units, lead-out terminal temperature alarming module is provided with in described microcontroller, when the pole of energy-storage units or terminal temperature reach dangerous values, described lead-out terminal temperature alarming module externally gives the alarm.
One end that the output of described power module hinders one end of R13 with one end of energy-storage units temperature sampling resistance R11, one end of module temperature sampling resistor R12, the positive output terminal temperature sampling of energy-storage travelling wave tube, the positive output terminal temperature sampling of energy-storage travelling wave tube hinders R14 is connected; The other end of energy-storage units temperature sampling resistance R11 is connected with an analog-to-digital conversion pin of one end of energy-storage units temperature sampling resistance RT1, microcontroller; The other end of energy-storage units temperature sampling resistance RT1 is connected with the negative terminal of the power supply terminal of equalizing circuit; The other end of module temperature sampling resistor R12 is connected with an analog-to-digital conversion pin of one end of module temperature sampling resistor RT2, microcontroller; The other end of module temperature sampling resistor RT2 is connected with the negative terminal of the power supply terminal of equalizing circuit; The other end of R13 hinders one end of RT3 with the positive output terminal temperature sampling of energy-storage travelling wave tube, an analog-to-digital conversion pin of microcontroller is connected in the positive output terminal temperature sampling resistance of energy-storage travelling wave tube; The positive output terminal temperature sampling resistance other end of RT3 is connected with the negative terminal of the power supply terminal of equalizing circuit; The other end of R14 hinders one end of RT4 with the negative output terminal temperature sampling of energy-storage travelling wave tube, an analog-to-digital conversion pin of microcontroller is connected in the negative output terminal temperature sampling resistance of energy-storage travelling wave tube; The negative output terminal temperature sampling resistance other end of RT4 is connected with the negative terminal of the power supply terminal of equalizing circuit;
Sampling resistor R11, RT1 in described energy-storage units temperature sampling circuit are embedded in the inside of energy-storage units, the temperature of energy-storage units converts voltage signal to by responsive to temperature electronic device RT1, be transferred to micro-reason device analog to digital converter port, voltage signal is transformed into the micro-process kernel of digital signal and carries out digital operation by microcontroller.The height of the actual temperature of energy-storage units determines the charging ceiling voltage of energy-storage units and the height of discharge prevention voltage; therefore energy-storage units voltage control module is provided with in the microcontroller; energy cell voltage control module, according to the charging/discharging voltage of energy-storage units temperature adjustment energy-storage units, prevents energy-storage units to be operated in hazardous environment.
Sampling resistor R12, RT2 on energy-storage units equalizing circuit temperature sampling circuit are arranged on the circuit board of equalizing circuit, the temperature of equalizing circuit plate converts voltage signal to by responsive to temperature electronic device RT2, be transferred to micro-reason device analog to digital converter port, voltage signal is transformed into the micro-process kernel of digital signal and carries out digital operation by microcontroller.Be provided with power component control module in the microcontroller, therefore when the high temperature of equalizing circuit generation is when reaching dangerous values, microcontroller controls to the power component exported, and prevents the fault that high temperature causes.
Near the pole that sampling resistor R13, R14, RT3, RT4 in lead-out terminal temperature sampling circuit are arranged on energy-storage units or terminal, on the pole of energy-storage units or terminal, temperature converts voltage signal to by responsive to temperature electronic device RT3, RT4, be transferred to micro-reason device analog to digital converter port, voltage signal is transformed into the micro-process kernel of digital signal and carries out digital operation by microcontroller.Be provided with lead-out terminal temperature alarming module in the microcontroller, when the high temperature that the pole or terminal of energy-storage units cause due to resistance or electric current is when reaching dangerous values, microcontroller is externally sent by the mode of communication command and sound and light alarm, and carrys out by the action of external force the fault that the pole of energy-storage units or terminal prevent high temperature from causing.
The energy of this energy-storage units equalizing circuit and communication terminal are by two energy and communication transfer wire and external transmission electric energy and communication signal.Two energy and communication transfer wire are two conducting wires, can conduct electricity can, also can be transferred through simultaneously the burst communication signal after modulation, CF signal and other can the communication signal of electrical transmission.Equalizing circuit in energy-storage system is connected to form the transmission network of a ring-like energy and communication by energy and communication transfer wire.
In addition, in use produce short circuit accident to prevent Energy Transfer wire short trouble and cause larger harm, also include the protective circuit preventing energy and communication transfer wire short trouble.Described protective circuit comprises a unilateal conduction device.Preferably, described unilateal conduction device is a diode or a switching circuit.The plus end of the power supply terminal of equalizing circuit is connected with preventing protective circuit element D1 one end of Energy Transfer wire short trouble; The protective circuit element D1 other end is connected with a terminal of the energy input of equalizing circuit; Another terminal of the energy input of equalizing circuit is connected with an analog-to-digital conversion pin of one end of euqalizing current sampling resistor R5, microcontroller; The other end of current sampling resistor R5 is connected with the negative terminal of the power supply terminal of equalizing circuit.
Also be provided with input or the second communication terminal of outputting communication information, described second communication terminal is connected with microcontroller, and in described second communication terminal and energy-storage system, the second communication terminal of other energy-storage units carries out communication.The arranging of second communication terminal can form the transmission network of an independently ring-like communication between each equalizing circuit.
In addition, also comprise a wireless transceiver circuit, one end of described wireless transceiver circuit is connected with microcontroller, and the other end of described wireless transceiver circuit is connected with dual-mode antenna.This wireless transceiver circuit be a kind ofly receive and send between equalizing circuit and equalizing circuit, the wireless communication signal circuit of external Equilibrium management system, as preferably, adopt the frequency ranges such as 433MHz, 2.4GHz; Employing comprises the agreements such as bluetooth, zigbee, WIFI.
In addition, also comprise a performance state indicating circuit be connected with microcontroller, described performance state indicating circuit is by the visible position of the information displaying of energy-storage units inside at energy-storage units.Described performance state indicating circuit adopts a kind of illuminating circuit or one piece of liquid crystal display screen, with the various information of clear display energy-storage units.One end of current-limiting resistance in performance state indicating circuit is connected with microcontroller; The other end of current-limiting resistance is connected with indication light circuit on one side, and the other end of indication light circuit is connected with the negative terminal of the power supply terminal of equalizing circuit.
The operation principle of above-mentioned equalizing circuit is:
Voltage sampling circuit gathers the voltage signal of energy-storage units, be transferred to micro-reason device analog to digital converter port, voltage signal is transformed into the micro-process kernel of digital signal and carries out digital operation and communication by microcontroller, when energy-storage units charges, charging voltage raises gradually, when reaching defined terms, the current signal of DC converter is turned by the energy input of information transmission to a upper equalizing circuit by modulation isolated DC, this equalizing circuit also can receive the information of voltage coming from next equalizing circuit simultaneously, in same energy communication transfer ring, the information of all balanced units is all sent in each equalizing circuit by ring-like communication transfer net, in charging process, the equalizing circuit being parallel to energy-storage units can adopt voltage difference and capacity difference and capacity difference to carry out Balance route.
Described voltage difference equilibrium is, when the ceiling voltage of energy-storage units be greater than minimum energy-storage units reach setting voltage time, energy-storage units starts to carry out Energy Transfer and information transmission to upper level energy-storage units, upper level energy-storage units is after receiving the energy with signal, the voltage of the unit of upper level energy storage will rise, each energy-storage units simultaneously in serial loop needs timesharing to carry out voltage sample and communication, until when the ceiling voltage energy-storage units of whole closed annular inside and the difference of minimum voltage energy-storage units fall back to the scope of regulation, namely stop balancing actions.
Described capacity difference equilibrium is, energy-storage units all has a minimum voltage value in each discharge process, equalizing circuit carries out sampling and stores this magnitude of voltage, by contrast conting formula (more accurate when there being the electric current of energy-storage units current sample), the capacity difference of each energy-storage units can be estimated.According to capacity definition be: time and electric current long-pending, energy-storage units capacity difference is when larger, the method of capacity difference is adopted just to carry out the practical significance of energy trasfer when charging process and discharge process start larger, because the time of energy trasfer energy is longer, then the energy that shifts in same current situation of equalizing circuit is more.Energy trasfer can carried out in advance in system charge and discharge process, realize small area analysis and shift jumbo object.
Circuit diagram below in conjunction with Fig. 2 illustrates energy-storage units equalization circuit embodiments 2.
Be from the different of embodiment 1, the built-in equalizing circuit of energy-storage units, adopt in the inner mode with wiring between equalizing circuit and energy-storage units, which increase energy storage current sampling resistor or Hall element R3, one end of energy storage current sampling resistor or Hall element R3 is connected with the inner side negative terminal of energy-storage units, and the other end of energy storage current sampling resistor or Hall element R3 exports negative terminal with the outside of microcontroller analog-to-digital conversion pin, energy-storage units and is connected.
Below illustrate the energy-storage system with above-mentioned equalizing circuit, described energy-storage system comprises plural energy-storage units, and be provided with above-mentioned equalizing circuit, the quantity of described equalizing circuit is equal to or greater than energy-storage units quantity, when the quantity of described equalizing circuit equals the quantity of energy-storage units, described equalizing circuit adopts the pattern of series connection, forms the circuit ring of a complete circular power transfer and transfer of data; When the quantity of described equalizing circuit is greater than energy-storage units quantity, described equalizing circuit adopts series-parallel pattern, forms the circuit ring of the transfer of more than one complete circular power and transfer of data.
Three groups of binding posts of equalizing circuit, one group be power supply terminal, one group be lead-out terminal, one group be input terminal, power supply terminal is connected with the lead-out terminal of energy-storage units, and the lead-out terminal of equalizing circuit is connected with the input terminal of communication transfer wire with the equalizing circuit corresponding to previous energy-storage units by two energy; The input terminal of equalizing circuit is connected with the lead-out terminal of communication transfer wire with the equalizing circuit corresponding to a rear energy-storage units by two energy; The input terminal of the equalizing circuit that last energy-storage units is corresponding is connected without corresponding lead-out terminal with the most front energy storage list with communication transfer wire by two energy, and the equalizing circuit of energy-storage system is connected to form the transmission network of a ring-like energy and communication by energy and communication transfer wire.
And one of them terminal of the second communication terminal is connected with another terminal of the second communication terminal of the equalizing circuit corresponding to previous energy-storage units; Described second communication terminal another terminal is wherein connected with a terminal of the second communication terminal of the equalizing circuit corresponding to a rear energy-storage units; One of them terminal of second communication terminal of the equalizing circuit that last energy-storage units is corresponding is connected with another terminal of the second communication terminal of the most front equalizing circuit that energy-storage units is corresponding, and the equalizing circuit of energy-storage system is connected to form the transmission network of an independently ring-like communication by the second communication terminal.
Described energy-storage system is series connection or series-parallel energy-storage system, and described series connection accumulation system is composed in series by two or more energy-storage units, and described connection in series-parallel energy-storage system is that the energy-storage system of two groups or more series connection composes in parallel.Described energy-storage units is preferably storage battery, but is not limited to storage battery, as also can being generator, ultracapacitor, photovoltaic solar panel etc.
Fig. 4 is external equalizing circuit series connection accumulation systematic schematic diagram; Concrete, equalizing circuit adopts embodiment 1 China and foreign countries to be connected on the mode of energy-storage units outside, and in energy-storage system, each energy-storage units adopts the mode of coupled in series.
Fig. 5 is built-in equalizing circuit series connection accumulation systematic schematic diagram; Concrete, equalizing circuit adopts the mode being built in energy-storage units inside in embodiment 2, and in energy-storage system, each energy-storage units adopts the mode of coupled in series.
Fig. 6 is connection in series-parallel equalizing circuit energy-storage system one schematic diagram; Concrete, two groups of (or more than two) energy-storage systems are in parallel, and energy-storage units series connection in each group energy-storage system, equalizing circuit wherein, can take to connect or external mode in embodiment 1 or embodiment 2.
Fig. 7 is connection in series-parallel equalizing circuit energy-storage system two schematic diagram, concrete, in two groups of (or more than two) energy-storage systems, each energy-storage units is connected as a whole system, and equalizing circuit wherein, can take to connect or external mode in embodiment 1 or embodiment 2.
Fig. 8 is series connection equalizing circuit energy-storage system schematic diagram, and outside former energy-storage system, increase (or N number of) energy-storage units, composition redundancy energy-storage system, connect between each energy-storage units of former energy-storage system, this energy-storage system may be used for after sale.
Figure 9 shows that the schematic diagram of series connection equalizing circuit energy-storage system, it uses the second communication terminal to carry out communication, adopts the series connection of 3 (or 4) root line.
Claims (10)
1. an energy-storage units equalizing circuit, this equalizing circuit is connected with energy-storage units, it is characterized in that: this equalizing circuit includes
One intelligence sample circuit, for gathering the state information of energy-storage units and transferring to microcontroller;
One group of external terminal, comprising the power supply terminal be connected with the lead-out terminal of energy-storage units, and carrying out energy and the communication terminal of energy and communication transfer with other energy-storage units, described energy and communication terminal are by energy and communication transfer wire transmission electric energy and communication signal;
One isolated DC turns DC converter, is connected with communication terminal with microcontroller and energy, carries out the transmission of energy and communication for controlling energy and communication terminal;
In charge and discharge process, in energy-storage system, the state information of each energy-storage units carries out communication by energy and communication transfer wire, the balance module arranged in microcontroller compares process to state information, and carry out Balance route, energy is shifted between each energy-storage units by energy and communication transfer wire.
2. a kind of energy-storage units equalizing circuit according to claim 1, is characterized in that: this equalizing circuit also includes the protective circuit preventing energy and the short circuit of communication transfer wire.
3. a kind of energy-storage units equalizing circuit according to claim 2; it is characterized in that: described protective circuit comprises a unilateal conduction module; the plus end of described power supply terminal is connected with one end of unilateal conduction module, and the described other end of unilateal conduction module is connected with a terminal of communication terminal with the energy of equalizing circuit.
4. a kind of energy-storage units equalizing circuit according to claim 1, it is characterized in that: this equalizing circuit also includes a non-isolation type direct-current and turns DC converter, described non-isolation type direct-current turns DC converter and turns DC converter with power supply terminal and isolated DC and be connected.
5. a kind of energy-storage units equalizing circuit according to claim 1, it is characterized in that: this equalizing circuit is also provided with the second communication terminal of input or outputting communication information, described second communication terminal is connected with microcontroller, and in described second communication terminal and energy-storage system, the second communication terminal of other energy-storage units carries out communication.
6. a kind of energy-storage units equalizing circuit according to claim 1, it is characterized in that: this equalizing circuit also comprises one and carries out the wireless transceiver circuit of communication with other energy-storage units, one end of described wireless transceiver circuit is connected with microcontroller, and the other end of described wireless transceiver circuit is connected with dual-mode antenna.
7. a kind of energy-storage units equalizing circuit according to claim 1 to 6 any one, it is characterized in that: described equalizing circuit is external in energy-storage units outside, the plus end of the power supply terminal of described equalizing circuit is connected with the anode of energy-storage units, and the negative terminal of the power supply terminal of described equalizing circuit is connected with the negative terminal of energy-storage units.
8. a kind of energy-storage units equalizing circuit according to claim 1 to 6 any one, it is characterized in that: described equalizing circuit is built in energy-storage units inside, described equalizing circuit is also provided with energy storage current sampling resistor or Hall element R3, one end of R3 is connected with the inner side negative terminal of energy-storage units, and the other end of R3 exports negative terminal with the outside of microcontroller analog-to-digital conversion pin, energy-storage units and is connected.
9. one kind has the energy-storage system of equalizing circuit, it is characterized in that: this energy-storage system comprises plural energy-storage units, the equalizing circuit described in claim 1 to 8 any one is provided with in described energy-storage system, the quantity of described equalizing circuit is equal to or greater than energy-storage units quantity, when the quantity of described equalizing circuit equals the quantity of energy-storage units, described equalizing circuit adopts the pattern of series connection, forms the circuit ring of a complete circular power transfer and transfer of data; When the quantity of described equalizing circuit is greater than energy-storage units quantity, described equalizing circuit adopts series-parallel pattern, forms the circuit ring of the transfer of more than one complete circular power and transfer of data.
10. a kind of energy-storage system with equalizing circuit according to claim 9, it is characterized in that: described energy-storage system is series connection accumulation system or connection in series-parallel energy-storage system, described series connection accumulation system is composed in series by two or more energy-storage units, and described connection in series-parallel energy-storage system is that two groups or more series connection accumulation system composes in parallel.
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| CN201510015000.3A CN104600800B (en) | 2015-01-13 | 2015-01-13 | A kind of energy-storage units equalizing circuit and the energy-storage system with the equalizing circuit |
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| CN201510015000.3A CN104600800B (en) | 2015-01-13 | 2015-01-13 | A kind of energy-storage units equalizing circuit and the energy-storage system with the equalizing circuit |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030214268A1 (en) * | 2002-04-15 | 2003-11-20 | Friwo Geraetebau Gmbh | Device and method for the detection of a charging voltage |
| CN102130484A (en) * | 2011-03-28 | 2011-07-20 | 梁一桥 | Intelligent charging module of power batteries of the electric vehicle |
| CN102163854A (en) * | 2011-02-23 | 2011-08-24 | 中航锂电（洛阳）有限公司 | Charge-discharge equalizing circuit of multi-monomer tandem dynamic lithium battery |
| CN204538721U (en) * | 2015-01-13 | 2015-08-05 | 超威电源有限公司 | A kind of energy-storage units equalizing circuit and there is the energy-storage system of this equalizing circuit |
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2015
- 2015-01-13 CN CN201510015000.3A patent/CN104600800B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030214268A1 (en) * | 2002-04-15 | 2003-11-20 | Friwo Geraetebau Gmbh | Device and method for the detection of a charging voltage |
| CN102163854A (en) * | 2011-02-23 | 2011-08-24 | 中航锂电（洛阳）有限公司 | Charge-discharge equalizing circuit of multi-monomer tandem dynamic lithium battery |
| CN102130484A (en) * | 2011-03-28 | 2011-07-20 | 梁一桥 | Intelligent charging module of power batteries of the electric vehicle |
| CN204538721U (en) * | 2015-01-13 | 2015-08-05 | 超威电源有限公司 | A kind of energy-storage units equalizing circuit and there is the energy-storage system of this equalizing circuit |
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| CN104600800B (en) | 2018-05-22 |
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