CN108512240A - A kind of hybrid energy-storing source current chop control system - Google Patents
A kind of hybrid energy-storing source current chop control system Download PDFInfo
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- CN108512240A CN108512240A CN201810461658.0A CN201810461658A CN108512240A CN 108512240 A CN108512240 A CN 108512240A CN 201810461658 A CN201810461658 A CN 201810461658A CN 108512240 A CN108512240 A CN 108512240A
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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Abstract
The invention discloses a kind of hybrid energy-storing source current chop control systems of the present invention, including hybrid energy-storing power supply and DC/AC inverters, further include the detection of electric current thresholding, chop control module, inversion drive module and busbar voltage detection, the hybrid energy-storing power supply provides electric current by DC/AC inverters to load；The output busbar voltage u of the busbar voltage detection detection hybrid energy-storing power supplyhess(t) and chop control module is sent to；The electric current thresholding detection obtains the operating current i (t) of load and sends chop control module to；The chop control module is according to the output busbar voltage u of hybrid energy-storing power supplyhess(t), the operating current i (t) needed for load drives DC/AC inverters via inversion drive module.The present invention adjusts the electric current of load by Current cut control method, and fully considers the bus voltage value of hybrid energy-storing power supply, it is ensured that power supply of the power supply to load meets the stable supplying of the power and energy of load by the control of hybrid energy-storing source current.
Description
Technical field
The present invention relates to a kind of hybrid energy-storing power control systems, more specifically to a kind of hybrid energy-storing power supply electricity
Chop control system is flowed, the application scenario of DC power supply stable power-supplying is suitable for.
Background technology
Hybrid energy-storing power supply energy storage has energy density high, it is easy to accomplish the features such as powering to high power load, electronic
The application fields such as automobile, hybrid vehicle and fuel cell car have good foreground.
Although hybrid energy-storing power supply has above-mentioned advantage, the parameter of hybrid energy-storing power supply is variable, it is difficult to meet simultaneously
How the supply of bearing power and energy gives full play to the advantage of hybrid energy-storing power supply for hybrid energy-storing power supply, is transporting
It is technical barrier that those skilled in the art are facing to reach during row to the stable power-supplying effect of bearing power and energy.
In order to ensure that hybrid energy-storing power supply can adapt to the demand of load stabilization power supply, while considering hybrid energy-storing power supply electricity
The constraint of pressure, there is an urgent need for for above-mentioned a Current cut control system of hybrid energy-storing Power Management Design.
Invention content
1. technical problems to be solved by the inivention
It is an object of the present invention to overcome the above mentioned deficiencies, providing a kind of hybrid energy-storing source current chop control system
System, technical solution using the present invention pass through the output current for turning on and off control hybrid energy-storing power supply of DC/AC inverters
Meet the electricity needs of load stabilization, and fully considers the output busbar voltage range of operation of hybrid energy-storing power supply, it is negative meeting
The power of load ensures that hybrid energy-storing power supply exports busbar voltage in operational envelope simultaneously with energy stabilization supply, meets system
The demand of system safety and bearing power and energy, hybrid energy-storing power supply service life improve, and are suitable for bearing power and energy
The application scenario of stable power-supplying.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention is：
A kind of hybrid energy-storing source current chop control system of the present invention, including hybrid energy-storing power supply and DC/AC inversions
Device further includes the detection of electric current thresholding, chop control module, inversion drive module and busbar voltage detection, the hybrid energy-storing
Power supply provides electric current by DC/AC inverters to load；The output of the busbar voltage detection detection hybrid energy-storing power supply is female
Line voltage uhess(t) and chop control module is sent to；The electric current thresholding detection obtains the operating current i (t) of load simultaneously
Send chop control module to；Output busbar voltage u of the chop control module to the super capacitor group of feedingsu(t) and
Operating current i (t) needed for load is passed through after being handled and is driven DC/AC inverters by inversion drive module；Wherein chop control
The processing rule being arranged in module is：
(a) as the port voltage u of hybrid energy-storing power supplyhessmin<uhess(t) when, and as the required operating current i (t) of load
≤ihessmaxWhen, it loads required operating current i (t) and provides i.e. i by hybrid energy-storing power supplyhess(t)=i (t), at this time copped wave control
Module output signal processed is open-minded by inversion drive module control DC/AC inverters, the output current i of hybrid energy-storing power supplyhess
(t) rapid increase, as the output current i of hybrid energy-storing power supplyhess(t) reach i1When, chop control module output signal passes through inverse
Become drive module control DC/AC inverters shutdown, the output current i of hybrid energy-storing power supplyhess(t) start to decay, when mixing is stored up
The output current i of energy power supplyhess(t) i is decayed to2When；DC/AC inverters are again open-minded, by way of current chopping, keep
Loaded work piece electric current is stablized in i2＜ i (t) ＜ i1；
(b) as the output busbar voltage u of hybrid energy-storing power supplyhess(t) ＜ uhessminWhen, the shutdown of DC/AC inverters, mixing
The output current i of accumulation power supply (1)hess(t)=0.
In formula, uhessminFor hybrid energy-storing power supply minimum voltage；ihess(t) it is the electric current of hybrid energy-storing power supply output；i(t)
For the operating current of load, i1For the thresholding upper limit of load, i2For the thresholding lower limit of load；Wherein, uhessminAccording to hybrid energy-storing
Power supply electrochemistry can determine that.
Further, when the required electric current dynamic change of load, the hybrid energy-storing source current i1And i2With
The electric current of load and change.
Further, the energy type operating current needed for the load is provided by the accumulator of hybrid energy-storing power supply, is protected
Demonstrate,prove the long-time electricity consumption of load；Required power-type operating current is provided by the super capacitor of hybrid energy-storing power supply, proof load
Short time high current electricity consumption, which is more than three times of load rating load current.
3. advantageous effect
Using technical solution provided by the invention, compared with existing known technology, there is following remarkable result：
(1) a kind of hybrid energy-storing source current chop control system of the invention, by DC/AC inverters open and
The output current of shutdown control hybrid energy-storing power supply meets load current and operates within domain value range, ensure that hybrid energy-storing electricity
Source fully considers the output busbar voltage range of operation of hybrid energy-storing power supply to the stable supplying of bearing power and energy, full
The steady requirement of pedal system safety and load supplying, hybrid energy-storing power supply service life improve, and are suitable for high power load electricity
Flow stable application scenario；
(2) a kind of hybrid energy-storing source current chop control system of the invention, chop control module is to DC/AC inversions
The control rule of device taken into account the output busbar voltage operational envelope of hybrid energy-storing power supply, effective protection hybrid energy-storing electricity
Source effectively extends the service life of hybrid energy-storing power supply in the case where meeting bearing power with energy stabilization demand.
Description of the drawings
Fig. 1 is a kind of annexation figure of hybrid energy-storing source current chop control system of the present invention.
Label declaration in schematic diagram：1, hybrid energy-storing power supply；2, DC/AC inverters；3, it loads；4, electric current thresholding is examined
It surveys；5, chop control module；6, inversion drive module；7, busbar voltage detection.
Specific implementation mode
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
As shown in Figure 1, a kind of hybrid energy-storing source current chop control system of the present embodiment, passes through DC/AC inverters
The output current for turning on and off control hybrid energy-storing power supply meet the needs of bearing power and energy stabilization are powered, and fully
Consider the output busbar voltage range of operation of hybrid energy-storing power supply, ensures that hybrid energy-storing power supply power supply meets the steady need of load
It asks, meets the steady requirement of security of system and load supplying, hybrid energy-storing power supply service life improves, and is suitable for various stabilizations
The occasion of direct current supply.
Concrete scheme is：
Mould is driven including hybrid energy-storing power supply 1, DC/AC inverters 2, electric current thresholding detection 4, chop control module 5, inversion
Block 6 and busbar voltage detection 7, hybrid energy-storing power supply 1 provide electric current by DC/AC inverters 2 to load 3；Busbar voltage detection 7
Detect the output busbar voltage u of hybrid energy-storing power supply 1hess(t) and chop control module 5 is sent to；Electric current thresholding detection 4 obtains
The operating current i (t) of load 3 simultaneously sends chop control module 5 to；Super capacitor of the chop control module 5 to feeding
The output busbar voltage u of group 1su(t) through being driven by inversion drive module 6 after being handled with the operating current i (t) needed for load 3
Dynamic DC/AC inverters 2；
The control system can proof load electric current within domain value range, it is ensured that the stability requirement of load current.Pass through
Electric current thresholding detection 4 obtains the electric current needed for load 3 and sends chop control module 5 to, is mixed by busbar voltage detection 7
It closes the output busbar voltage of accumulation power supply 1 and sends chop control module 5 to, chop control module 5 is according to hybrid energy-storing power supply 1
Output busbar voltage and load 3 needed for steady-state current control DC/AC inverters 2, hybrid energy-storing via inversion drive module 6
Power supply 1 provides steady-state current by DC/AC inverters 2 to load 3；
The control rule being wherein arranged in chop control module 5 is：
(a) as the port voltage u of hybrid energy-storing power supply 1hessmin<uhess(t) when, and work as the operating current i needed for load 3
(t)≤ihessmaxWhen, it is i to load the operating current i (t) needed for 3 and provided by hybrid energy-storing power supply 1hess(t)=i (t), cuts at this time
5 output signal of wave control module is open-minded by the control DC/AC inverters 2 of inversion drive module 6, the output of hybrid energy-storing power supply 1
Electric current ihess(t) rapid increase, as the output current i of hybrid energy-storing power supply 1hess(t) reach i1When, chop control module 5 exports
Signal controls DC/AC inverters 2 by inversion drive module 6 and turns off, the output current i of hybrid energy-storing power supply 1hess(t) start
Decaying, as the output current i of hybrid energy-storing power supply 1hess(t) i is decayed to2When；DC/AC inverters 2 are again open-minded, pass through electric current
The mode of copped wave keeps loaded work piece electric current to stablize in i2＜ i (t) ＜ i1；
(b) as the output busbar voltage u of hybrid energy-storing power supply 1hess(t) ＜ uhessminWhen, DC/AC inverters 2 turn off, and mix
Close the output current i of accumulation power supply 1hess(t)=0.
In formula, uhessminFor 1 minimum voltage of hybrid energy-storing power supply；ihess(t) electric current exported for hybrid energy-storing power supply 1；i
(t) it is the operating current for loading 3, i1For the thresholding upper limit of load 3, i2For the thresholding lower limit of load 3；Wherein, uhessminAccording to mixed
1 electrochemistry of accumulation power supply is closed to can determine that.Wherein when the required electric current dynamic change of load, hybrid energy-storing source current i1With
i2Change with the electric current of load；Energy type operating current needed for load 3 is provided by the accumulator of hybrid energy-storing power supply 1,
The long-time electricity consumption of proof load 3；Required power-type operating current is provided by the super capacitor of hybrid energy-storing power supply 1, is ensured
The short time high current electricity consumption of load 3, the short time high current are more than three times of 3 nominal load currents of load.
That is, in the present embodiment, when the output busbar voltage of hybrid energy-storing power supply 1 is in properly output busbar voltage
In range, and when loading the steady-state current needed for 3 less than the maximum current that hybrid energy-storing power supply 1 can export, needed for load 3
Electric current provided by hybrid energy-storing power supply 1, DC/AC inverters are open-minded when starting, electric current rapid increase, electric current is excessive to prevent and
Damage load, when electric current reaches i1When, so that DC/AC inverters is turned off, electric current starts to decay, when current attenuation to i2When, DC/AC
Inverter is again open-minded, and loaded work piece electric current is in i2And i1Between；
When the output busbar voltage of hybrid energy-storing power supply 1 is less than its minimum voltage, DC/AC inverters 2 turn off, mixing storage
Can the output current of power supply 1 be zero, effective protection hybrid energy-storing power supply 1.It ensures stable power-supplying of the power supply to load, meets
The service life of the steady requirement of security of system and load supplying, hybrid energy-storing power supply 1 improves, in the big work(of various stable DCs
The occasion of rate power supply has a good application prospect.
A kind of hybrid energy-storing source current chop control system of the present invention is adjusted by Current cut control method and is loaded
Electric current, and fully consider the bus voltage value of hybrid energy-storing power supply, it is ensured that power supply to the stable supplying of bearing power and energy,
Meet the steady requirement of security of system and load supplying, hybrid energy-storing power supply service life improves, and is applicable to stablize straight
Flow the application scenario of power supply.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (3)
1. a kind of hybrid energy-storing source current chop control system, including hybrid energy-storing power supply (1) and DC/AC inverters (2),
It is characterized in that：Further include electric current thresholding detection (4), chop control module (5), inversion drive module (6) and busbar voltage detection
(7), the hybrid energy-storing power supply (1) provides electric current by DC/AC inverters (2) to load (3)；The busbar voltage inspection
Survey the output busbar voltage u of (7) detection hybrid energy-storing power supply (1)hess(t) and chop control module (5) is sent to；The electricity
Basin value detection (4) is loaded the operating current i (t) of (3) and sends chop control module (5) to；The chop control
Output busbar voltage u of the module (5) to the super capacitor group (1) of feedingsu(t) and load (3) needed for operating current i (t) into
Through by inversion drive module (6) driving DC/AC inverters (2) after row processing；The processing being wherein arranged in chop control module (5)
Rule is：
(a) as the output busbar voltage u of hybrid energy-storing power supply (1)hessmin<uhess(t) when, and the work needed for load (3) is electric
Flow i (t)≤ihessmaxWhen, it is i to load the operating current i (t) needed for (3) and provided by hybrid energy-storing power supply (1)hess(t)=i
(t), chop control module (5) output signal is open-minded by inversion drive module (6) control DC/AC inverters (2) at this time, mixing
The output current i of accumulation power supply (1)hess(t) rapid increase, as the output current i of hybrid energy-storing power supply (1)hess(t) reach i1
When, chop control module (5) output signal controls DC/AC inverters (2) by inversion drive module (6) and turns off, hybrid energy-storing
The output current i of power supply (1)hess(t) start to decay, as the output current i of hybrid energy-storing power supply (1)hess(t) i is decayed to2When；
DC/AC inverters (2) are again open-minded, by way of current chopping, loaded work piece electric current kept to stablize in i2＜ i (t) ＜ i1；
(b) as the output busbar voltage u of hybrid energy-storing power supply (1)hess(t) ＜ uhessminWhen, DC/AC inverters (2) shutdown mixes
Close the output current i of accumulation power supply (1)hess(t)=0.
In formula, uhessminFor hybrid energy-storing power supply (1) minimum voltage；ihess(t) it is the electric current of hybrid energy-storing power supply (1) output；i
(t) it is the operating current for loading (3), i1For the thresholding upper limit of load (3), i2For the thresholding lower limit of load (3)；Wherein, uhessmin
It can determine that according to hybrid energy-storing power supply (1) electrochemistry.
2. a kind of hybrid energy-storing source current chop control system according to claim 1, it is characterised in that：Work as load
(3) when electric current dynamic change needed for, described hybrid energy-storing power supply (1) the electric current i1And i2Become with the electric current of load (3)
Change.
3. the temporary wave control system of a kind of hybrid energy-storing source current according to claim 1, it is characterised in that：It loads (3)
Required energy type operating current is provided by the accumulator of hybrid energy-storing power supply (1), the long-time electricity consumption of proof load (3)；Institute
The power-type operating current needed is provided by the super capacitor of hybrid energy-storing power supply (1), and the short time high current of proof load (3) is used
Electricity, the short time high current are more than three times of load (3) nominal load current.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810461658.0A CN108512240B (en) | 2018-05-15 | 2018-05-15 | Current chopping control system of hybrid energy storage power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810461658.0A CN108512240B (en) | 2018-05-15 | 2018-05-15 | Current chopping control system of hybrid energy storage power supply |
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| CN108512240B CN108512240B (en) | 2021-06-25 |
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| CN109586353A (en) * | 2018-10-23 | 2019-04-05 | 江苏大学 | A kind of Current cut control device |
| CN109980751A (en) * | 2019-05-07 | 2019-07-05 | 江苏吉意信息技术有限公司 | Accumulation power supply state-of-charge Fuzzy control system and method |
| CN110011339A (en) * | 2019-05-07 | 2019-07-12 | 江苏吉意信息技术有限公司 | Accumulation power supply protection and operation control system and method |
| CN110011340A (en) * | 2019-05-07 | 2019-07-12 | 江苏吉意信息技术有限公司 | Accumulation power supply Hysteresis control system and method, electronic equipment and storage medium |
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| CN108512240B (en) | 2021-06-25 |
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