CN105322560A - Novel rapid self-equalization circuit of hybrid energy storage system - Google Patents
Novel rapid self-equalization circuit of hybrid energy storage system Download PDFInfo
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- CN105322560A CN105322560A CN201510870029.XA CN201510870029A CN105322560A CN 105322560 A CN105322560 A CN 105322560A CN 201510870029 A CN201510870029 A CN 201510870029A CN 105322560 A CN105322560 A CN 105322560A
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Abstract
The invention discloses a novel rapid self-equalization circuit of a hybrid energy storage system. The novel rapid self-equalization circuit of the hybrid energy storage system comprises a supercapacitor bank unit, a battery pack unit and a power supply unit, wherein the supercapacitor bank unit comprises a first capacitor, a second capacitor, a third capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a thirteenth diode, a first switch and a second switching tube; the battery pack unit comprises a first battery, a second battery, a third battery, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh diode, an eighth diode, a ninth diode, a tenth diode, an eleventh diode, a twelfth diode, a twelfth tetrode, a third switch and a fourth switching tube; and the power supply unit comprises a first charging plug, a tenth capacitor and a first inductor. The novel rapid self-equalization circuit of the hybrid energy storage system has the advantages that voltage equalization can be automatically realized, switching elements are less and energy utilization rate is high.
Description
Technical field
The present invention relates to electric automobile electric power system field, particularly mixed energy storage system is novel fast from equalizing circuit.
Background technology
Along with the lifting day by day of people's environmental consciousness, electric automobile replaces orthodox car to become a kind of trend, and problem of continuing a journey, issue for battery life and performance issue again limit the development of electric automobile.The energy storage that Energy Recovery Technology produces when electric motor car can be helped brake and slow down, increases the flying power of electric automobile.It is high that super capacitor has power density, charging rate is fast, the feature that large current discharging capability is superpower, therefore super capacitor is suitably for when electric automobile starts or accelerates and produces enough power, super capacitor is also suitable as the intermediate buffer layer of energy regenerating simultaneously, namely the first energy fast storage that electric motor car is produced brake with when slowing down is in super capacitor, transfer in battery by super capacitor more afterwards, the big current avoiding the short time to produce, on the impact of battery life, is conducive to solving performance issue, continuation of the journey problem and issue for battery life.Cell balancing then can guarantee that the voltage at each energy-storage units two ends in electric automobile energy-storage system is substantially equal, is conducive to the useful life extending energy-storage system.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art and deficiency, the novel fast from equalizing circuit of a kind of mixed energy storage system is provided, this is novel, and fast to make use of super capacitor power density from equalizing circuit high, its charging rate is fast, the feature that large current discharging capability is superpower, when electric automobile starts or accelerate, utilize superbattery group to replace battery pack to be electric automobile energy supply, realize starting fast and accelerating; Because battery, than can be high, be applicable to long-time electric discharge, when after electric automobile Acceleration of starting to desired speed, transfer to battery-powered.In addition, utilize the characteristic of super capacitor, fast the energy storage that electric automobile brake deceleration produces can be got up, then transfer in battery pack and store; The present invention can realize the voltage automatic equalization of mixed energy storage system, and switching device is relatively less, simplifies circuit and control mode.
Object of the present invention is achieved through the following technical solutions: a kind of mixed energy storage system novel fast from equalizing circuit, comprising: super capacitor group unit X, battery assembly module Y and power subsystem Z; Described super capacitor group unit X comprises the first electric capacity C
1, the second electric capacity C
2, the 3rd electric capacity C
3, the 7th electric capacity C
7, the 8th electric capacity C
8, the 9th electric capacity C
9, the first diode D
1, the second diode D
2, the 3rd diode D
3, the 4th diode D
4, the 5th diode D
5, the 6th diode D
6, the 13 diode D
13, the first switch S
1with second switch pipe S
2; Described first electric capacity C
1to the 3rd electric capacity C
3be electrochemical capacitor and capacitance is all equal; 7th electric capacity C
7to the 9th electric capacity C
9be super capacitor and capacitance is also all equal; Described first switch S
1for electromagnetic relay; Described 7th electric capacity C
7positive pole, the first diode D
1negative electrode and the first switch S
1one end be connected; Described 7th electric capacity C
7negative pole, the 8th electric capacity C
8positive pole, the second diode D
2anode and the 3rd diode D
3negative electrode be connected; Described 8th electric capacity C
8negative pole, the 9th electric capacity C
9positive pole, the 4th diode D
4anode and the 5th diode D
5negative electrode be connected; Described 9th electric capacity C
9negative pole, the 6th diode D
6anode and second switch pipe S
2source electrode be connected; Described first diode D
1anode, the second diode D
2negative electrode and the first electric capacity C
1positive pole be connected; Described 3rd diode D
3anode, the 4th diode D
4negative electrode and the second electric capacity C
2positive pole be connected; Described 5th diode D
5anode, the 6th diode D
6negative electrode and the 3rd electric capacity C
3positive pole be connected; Described first electric capacity C
1negative electrode, the second electric capacity C
2negative electrode, the 3rd electric capacity C
3negative electrode, the 13 diode D
13negative electrode and second switch pipe S
2drain electrode be connected; Described battery power Y comprises the first battery B
1, the second battery B
2, the 3rd battery B
3, the 4th electric capacity C
4, the 5th electric capacity C
5, the 6th electric capacity C
6, the 7th diode D
7, the 8th diode D
8, the 9th diode D
9, the tenth diode D
10, the 11 diode D
11, the 12 diode D
12, the 12 tetrode D
14, the 3rd switch S
3with the 4th switching tube S
4; Described 4th electric capacity C
4to the 6th electric capacity C
6be electrochemical capacitor and capacitance is all equal; Described first battery B
1to the 3rd battery B
3the battery cell that the capacity that is is equal; Described 3rd switch S
3for electromagnetic relay; Described first battery B
1positive pole, the 7th diode D
7negative electrode and the 3rd switch S
3one end be connected; Described first battery B
1negative pole, the second battery B
2positive pole, the 8th diode D
8anode and the 9th diode D
9negative electrode be connected; Described second battery B
2negative pole, the 3rd battery B
3positive pole, the tenth diode D
10anode and the 11 diode D
11negative electrode be connected; Described 3rd battery B
3negative pole, the 12 diode D
12anode and the 4th switching tube S
4source electrode be connected; Described 7th diode D
7anode, the 8th diode D
8negative electrode and the 4th electric capacity C
4positive pole be connected; The anode of described 9th diode D9, the tenth diode D
10negative electrode and the 5th electric capacity C
5positive pole be connected; Described 11 diode D
11anode, the 12 diode D
12negative electrode and the 6th electric capacity C
6positive pole be connected; Described 4th electric capacity C
4negative electrode, the 5th electric capacity C
5negative electrode, the 6th electric capacity C
6negative electrode, the 12 tetrode D
14negative electrode and second switch S
2drain electrode be connected; The other end and the battery assembly module Y of described super capacitor group unit X are powered to motor in electric automobile by port A and B on DC bus; Described power subsystem Z comprises the first charging plug P
1, the tenth electric capacity C
10, the first inductance L
1; Described tenth electric capacity C
10for electrochemical capacitor; Described first charging plug P
1positive pole, the tenth electric capacity C
10positive pole, the first inductance L
1positive pole, super capacitor group unit X the first switch S
1the other end and the 3rd switch S of battery assembly module Y
3the other end be connected; Described first inductance L
1negative pole, super capacitor group unit X the 13 diode D
13the 14 diode D of Anode and battery group unit Y
14anode be connected; Described first charging plug P
1negative pole, the tenth electric capacity C
10negative pole, super capacitor group unit X second switch pipe S
2source electrode and the 4th switching tube S of battery assembly module Y
4source electrode be connected; Described super capacitor group unit X is powered to motor in electric automobile by port A and C on DC bus; Described battery assembly module Y is powered to motor in electric automobile by port B and C on DC bus.Described second switch pipe S
2, the 4th switching tube S
4the second drive singal G
2, four-wheel drive signal G
4directly obtained by basic PWM ripple; By electric motor car Working state analysis, the novel of this mixed energy storage system has kind of an operating state from equalizing circuit fast:
State I: charged state.First switch S
1with the 3rd switch S
3disconnect, second switch pipe S
2with the 4th switching tube S
4conducting, the first charging plug P
1connect with the mains.Power supply is by the first charging plug P
1simultaneously to super capacitor group X and battery pack Y charging.
State I I: start and acceleration mode.First switch S
1disconnect, second switch pipe S
2conducting, the 3rd switch S
3closed, the 4th switching tube S
4turn off.Battery pack Y charges to super capacitor group X, super capacitor group X by DC bus to motor in electric automobile load supplying.
State I II: transport condition.First switch S
1closed, second switch pipe S
2turn off, the 3rd switch S
3disconnect, the 4th switching tube S
4conducting.Super capacitor group X charges to battery assembly module Y, and battery pack Y is powered to motor in electric automobile by DC bus.
State I V: energy regenerating first stage.First switch S
1closed, second switch pipe S
2conducting, the 3rd switch S
3disconnect, the 4th switching tube S
4turn off.Electric automobile is charged braking or the automatic energy produced that slows down by DC bus to super capacitor group X.
State V: energy regenerating second stage.First switch S
1closed, second switch pipe S
2turn off, the 3rd switch S
3disconnect, the 4th switching tube S
4conducting.Super capacitor group X charges to battery assembly module Y.
Tool of the present invention has the following advantages:
(1) the present invention has the advantages that automatically realize electric voltage equalization.
(2) switching device of the present invention's use is less, reduces circuit complexity, saves space.
(3) braking energy produced when the present invention can reclaim and utilize electric automobile to slow down, puies forward high-octane utilization ratio.
Accompanying drawing explanation
Fig. 1 is the novel fast from the structure chart of equalizing circuit of mixed energy storage system of the present invention.
Fig. 2 is the novel voltage oscillogram fast when the battery pack (super capacitor group) of equalizing circuit is charged of mixed energy storage system of the present invention; Voltage oscillogram tendency convergence when battery pack (super capacitor group) is charged is balanced.
Fig. 3 is the novel fast when the battery pack (super capacitor group) of equalizing circuit is charged of mixed energy storage system of the present invention, flows through the 14 diode D of battery assembly module Y
14(the 13 diode D of super capacitor group unit X
13) current waveform figure.
Embodiment
For setting forth content of the present invention and feature further, below in conjunction with accompanying drawing, specific embodiment of the invention scheme is specifically described.
Embodiment
As shown in Figure 1, be the novel quick structure chart from equalizing circuit of mixed energy storage system.Mixed energy storage system novel fast from equalizing circuit, comprises super capacitor group unit X, battery assembly module Y and power subsystem Z; Described super capacitor group unit X comprises the first electric capacity C
1, the second electric capacity C
2, the 3rd electric capacity C
3, the 7th electric capacity C
7, the 8th electric capacity C
8, the 9th electric capacity C
9, the first diode D
1, the second diode D
2, the 3rd diode D
3, the 4th diode D
4, the 5th diode D
5, the 6th diode D
6, the 13 diode D
13, the first switch S
1with second switch pipe S
2; Described first electric capacity C
1to the 3rd electric capacity C
3be electrochemical capacitor and capacitance is all equal; 7th electric capacity C
7to the 9th electric capacity C
9be super capacitor and capacitance is also all equal; Described first switch S
1for electromagnetic relay; Described 7th electric capacity C
7positive pole, the first diode D
1negative electrode and the first switch S
1one end be connected; Described 7th electric capacity C
7negative pole, the 8th electric capacity C
8positive pole, the second diode D
2anode and the 3rd diode D
3negative electrode be connected; Described 8th electric capacity C
8negative pole, the 9th electric capacity C
9positive pole, the 4th diode D
4anode and the 5th diode D
5negative electrode be connected; Described 9th electric capacity C
9negative pole, the 6th diode D
6anode and second switch pipe S
2source electrode be connected; Described first diode D
1anode, the second diode D
2negative electrode and the first electric capacity C
1positive pole be connected; Described 3rd diode D
3anode, the 4th diode D
4negative electrode and the second electric capacity C
2positive pole be connected; Described 5th diode D
5anode, the 6th diode D
6negative electrode and the 3rd electric capacity C
3positive pole be connected; Described first electric capacity C
1negative electrode, the second electric capacity C
2negative electrode, the 3rd electric capacity C
3negative electrode, the 13 diode D
13negative electrode and second switch pipe S
2drain electrode be connected; Described battery power Y comprises the first battery B
1, the second battery B
2, the 3rd battery B
3, the 4th electric capacity C
4, the 5th electric capacity C
5, the 6th electric capacity C
6, the 7th diode D
7, the 8th diode D
8, the 9th diode D
9, the tenth diode D
10, the 11 diode D
11, the 12 diode D
12, the 12 tetrode D
14, the 3rd switch S
3with the 4th switching tube S
4; Described 4th electric capacity C
4to the 6th electric capacity C
6be electrochemical capacitor and capacitance is all equal; Described first battery B
1to the 3rd battery B
3the battery cell that the capacity that is is equal; Described 3rd switch S
3for electromagnetic relay; Described first battery B
1positive pole, the 7th diode D
7negative electrode and the 3rd switch S
3one end be connected; Described first battery B
1negative pole, the second battery B
2positive pole, the 8th diode D
8anode and the 9th diode D
9negative electrode be connected; Described second battery B
2negative pole, the 3rd battery B
3positive pole, the tenth diode D
10anode and the 11 diode D
11negative electrode be connected; Described 3rd battery B
3negative pole, the 12 diode D
12anode and the 4th switching tube S
4source electrode be connected; Described 7th diode D
7anode, the 8th diode D
8negative electrode and the 4th electric capacity C
4positive pole be connected; The anode of described 9th diode D9, the tenth diode D
10negative electrode and the 5th electric capacity C
5positive pole be connected; Described 11 diode D
11anode, the 12 diode D
12negative electrode and the 6th electric capacity C
6positive pole be connected; Described 4th electric capacity C
4negative electrode, the 5th electric capacity C
5negative electrode, the 6th electric capacity C
6negative electrode, the 12 tetrode D
14negative electrode and second switch S
2drain electrode be connected; The other end and the battery assembly module Y of described super capacitor group unit X are powered to motor in electric automobile by port A and B on DC bus; Described power subsystem Z comprises the first charging plug P
1, the tenth electric capacity C
10, the first inductance L
1; Described tenth electric capacity C
10for electrochemical capacitor; Described first charging plug P
1positive pole, the tenth electric capacity C
10positive pole, the first inductance L
1positive pole, super capacitor group unit X the first switch S
1the other end and the 3rd switch S of battery assembly module Y
3the other end be connected; Described first inductance L
1negative pole, super capacitor group unit X the 13 diode D
13the 14 diode D of Anode and battery group unit Y
14anode be connected; Described first charging plug P
1negative pole, the tenth electric capacity C
10negative pole, super capacitor group unit X second switch pipe S
2source electrode and the 4th switching tube S of battery assembly module Y
4source electrode be connected; Described super capacitor group unit X is powered to motor in electric automobile by port A and C on DC bus; Described battery assembly module Y is powered to motor in electric automobile by port B and C on DC bus.As shown in Figure 2, described second switch pipe S
2, the 4th switching tube S
4the second drive singal G
2, four-wheel drive signal G
4directly obtained by basic PWM ripple; As shown in Figure 3, basic PWM ripple is by triangular carrier V
cwith direct voltage V
m2, V
m4relatively obtain; By electric motor car Working state analysis, the novel of this mixed energy storage system has kind of an operating state from equalizing circuit fast:
State I: charged state.First switch S
1with the 3rd switch S
3disconnect, second switch pipe S
2with the 4th switching tube S
4conducting, the first charging plug P
1connect with the mains.Power supply is by the first charging plug P
1simultaneously to super capacitor group X and battery pack Y charging.
State I I: start and acceleration mode.First switch S
1disconnect, second switch pipe S
2conducting, the 3rd switch S
3closed, the 4th switching tube S
4turn off.Battery pack Y charges to super capacitor group X, and super capacitor group X is powered to motor in electric automobile by DC bus.
State I II: transport condition.First switch S
1closed, second switch pipe S
2turn off, the 3rd switch S
3disconnect, the 4th switching tube S
4conducting.Super capacitor group X charges to battery assembly module Y, and battery pack Y is powered to motor in electric automobile by DC bus.
State I V: energy regenerating first stage.First switch S
1closed, second switch pipe S
2conducting, the 3rd switch S
3disconnect, the 4th switching tube S
4turn off.Electric automobile is stored into super capacitor group X by DC bus braking or the braking energy produced that slows down.
State V: energy regenerating second stage.First switch S
1closed, second switch pipe S
2turn off, the 3rd switch S
3disconnect, the 4th switching tube S
4conducting.Super capacitor group X charges to battery assembly module Y.
Above-described embodiment is the present invention's preferably execution mode; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (2)
1. a mixed energy storage system is novel fast from equalizing circuit, comprise: super capacitor group unit (X), battery assembly module (Y) and power subsystem (Z), it is characterized in that, described super capacitor group unit (X), power subsystem (Z) are in parallel by the DC bus of electric automobile with battery assembly module (Y).
2. mixed energy storage system according to claim 1 is novel fast from equalizing circuit, and it is characterized in that, described super capacitor group unit (X) comprises the first electric capacity (C
1), the second electric capacity (C
2), the 3rd electric capacity (C
3), the 7th electric capacity (C
7), the 8th electric capacity (C
8), the 9th electric capacity (C
9), the first diode (D
1), the second diode (D
2), the 3rd diode (D
3), the 4th diode (D
4), the 5th diode (D
5), the 6th diode (D
6), the 13 diode (D
13), the first switch (S
1) and second switch pipe (S
2); Described first electric capacity (C
1), the second electric capacity (C
2) and the 3rd electric capacity (C
3) be electrochemical capacitor and capacitance is all equal; 7th electric capacity (C
7), the 8th electric capacity (C
8) and the 9th electric capacity (C
9) be super capacitor and capacitance is all equal; Described first switch (S
1) be electromagnetic relay; Described 7th electric capacity (C
7) positive pole, the first diode (D
1) negative electrode all with the first switch (S
1) one end be connected; Described 7th electric capacity (C
7) negative pole, the 8th electric capacity (C
8) positive pole, the second diode (D
2) anode all with three diode (D
3) negative electrode be connected; Described 8th electric capacity (C
8) negative pole, the 9th electric capacity (C
9) positive pole, the 4th diode (D
4) anode all with five diode (D
5) negative electrode be connected; Described 9th electric capacity (C
9) negative pole, the 6th diode (D
6) anode all with second switch pipe (S
2) source electrode be connected; Described first diode (D
1) anode, the second diode (D
2) negative electrode all with the first electric capacity (C
1) positive pole be connected; Described 3rd diode (D
3) anode, the 4th diode (D
4) negative electrode all with the second electric capacity (C
2) positive pole be connected; Described 5th diode (D
5) anode, the 6th diode (D
6) negative electrode all with three electric capacity (C
3) positive pole be connected; Described first electric capacity (C
1) negative electrode, the second electric capacity (C
2) negative electrode, the 3rd electric capacity (C
3) negative electrode, the 13 diode (D
13) negative electrode all with second switch pipe (S
2) drain electrode be connected;
Described battery power (Y) comprises the first battery (B
1), the second battery (B
2), the 3rd battery (B
3), the 4th electric capacity (C
4), the 5th electric capacity (C
5), the 6th electric capacity (C
6), the 7th diode (D
7), the 8th diode (D
8), the 9th diode (D
9), the tenth diode (D
10), the 11 diode (D
11), the 12 diode (D
12), the 12 tetrode (D
14), the 3rd switch (S
3) all with four switching tube (S
4); Described 4th electric capacity (C
4), the 5th electric capacity (C
5) and the 6th electric capacity (C
6) be electrochemical capacitor and capacitance is all equal; Described first battery (B
1), the second battery (B
2) and the 3rd battery (B
3) battery cell that the capacity that is is equal; Described second switch (S
2) be electromagnetic relay; Described first battery (B
1) positive pole, the 7th diode (D
7) negative electrode all with three switch (S
3) one end be connected; Described first battery (B
1) negative pole, the second battery (B
2) positive pole, the 8th diode (D
8) anode all with nine diode (D
9) negative electrode be connected; Described second battery (B
2) negative pole, the 3rd battery (B
3) positive pole, the tenth diode (D
10) anode all with the 11 diode (D
11) negative electrode be connected; Described 3rd battery (B
3) negative pole, the 12 diode (D
12) anode all with four switching tube (S
4) source electrode be connected; Described 7th diode (D
7) anode, the 8th diode (D
8) negative electrode all with four electric capacity (C
4) positive pole be connected; Described 9th diode (D
9) anode, the tenth diode (D
10) negative electrode all with five electric capacity (C
5) positive pole be connected; Described 11 diode (D
11) anode, the 12 diode (D
12) negative electrode all with six electric capacity (C
6) positive pole be connected; Described 4th electric capacity (C
4) negative electrode, the 5th electric capacity (C
5) negative electrode, the 6th electric capacity (C
6) negative electrode, the 12 tetrode (D
14) negative electrode all with second switch (S
2) drain electrode be connected; The other end of described super capacitor group unit (X) and battery assembly module (Y) are powered to motor in electric automobile by the port (A) on DC bus and (B);
Described power subsystem (Z) comprises the first charging plug (P
1), the tenth electric capacity (C
10) and the first inductance (L
1); Described tenth electric capacity (C
10) be electrochemical capacitor; Described first charging plug (P
1) positive pole, the tenth electric capacity (C
10) positive pole, the first inductance (L
1) positive pole, super capacitor group unit (X) the first switch (S
1) the other end all with the 3rd switch (S of battery assembly module (Y)
3) the other end be connected; Described first inductance (L
1) negative pole, super capacitor group unit (X) the 13 diode (D
13) anode all with the 14 diode (D of battery assembly module (Y)
14) anode be connected; Described first charging plug (P
1) negative pole, the tenth electric capacity (C
10) negative pole, super capacitor group unit (X) second switch pipe (S
2) source electrode all with the 4th switching tube (S of battery assembly module (Y)
4) source electrode be connected.
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| CN201510870029.XA CN105322560B (en) | 2015-11-30 | 2015-11-30 | Mixed energy storage system it is new quickly from equalizing circuit |
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|---|---|---|---|
| CN201510870029.XA CN105322560B (en) | 2015-11-30 | 2015-11-30 | Mixed energy storage system it is new quickly from equalizing circuit |
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| CN105322560B CN105322560B (en) | 2018-01-05 |
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| CN106451674B (en) * | 2016-11-30 | 2023-04-28 | 华南理工大学 | Electric automobile hybrid energy storage system with voltage equalization function |
| CN108429351B (en) * | 2018-04-27 | 2023-06-16 | 华南理工大学 | Multifunctional energy storage system oriented to energy storage market and control method |
| CN109412247A (en) * | 2018-12-06 | 2019-03-01 | 嘉兴市建筑工业学校 | A kind of shunt capacitance type decompression charger |
| CN109412247B (en) * | 2018-12-06 | 2023-09-05 | 嘉兴市建筑工业学校 | Parallel capacitor type step-down charger |
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| CN105322560B (en) | 2018-01-05 |
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