CN104218629B - Electric power supply system and electric power conversion method therein - Google Patents
Electric power supply system and electric power conversion method therein Download PDFInfo
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- CN104218629B CN104218629B CN201310218298.9A CN201310218298A CN104218629B CN 104218629 B CN104218629 B CN 104218629B CN 201310218298 A CN201310218298 A CN 201310218298A CN 104218629 B CN104218629 B CN 104218629B
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 34
- 238000004146 energy storage Methods 0.000 claims abstract description 147
- 238000011068 load Methods 0.000 claims abstract description 79
- 230000005611 electricity Effects 0.000 claims description 17
- 239000003990 capacitor Substances 0.000 claims description 7
- 239000002803 fossil fuel Substances 0.000 claims description 6
- 238000010248 power generation Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 5
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- 238000005859 coupling reaction Methods 0.000 description 1
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Abstract
The invention discloses a kind of electric power supply system and electric power conversion method therein.Electric power supply system comprises input stage change-over circuit, the first energy-storage travelling wave tube and output stage change-over circuit, and wherein the first energy-storage travelling wave tube is electrically connected to input stage change-over circuit, and output stage change-over circuit is electrically connected to the first energy-storage travelling wave tube.Input stage change-over circuit is in order to be charged the first energy-storage travelling wave tube, a rechargeable electrical energy is stored by the first energy-storage travelling wave tube, rechargeable electrical energy is converted to an output electric energy and gives an external loading with power supply by output stage change-over circuit, wherein input stage change-over circuit has the first electrical power, output stage change-over circuit has the second electrical power, and the second electrical power is more than the first electrical power.
Description
Technical field
The invention relates to a kind of circuit structure and method, and in particular to a kind of electric power supply system
And electric power conversion method therein.
Background technology
Along with the exhaustion of fossil energy, international oil price gradually goes up, and the common people drive the cost of steam turbine to be increased day by day.
Additionally, the today gradually come back in environmental consciousness, the waste gas that steam turbine is discharged when running is also for This is what people generally disapprove of.
Therefore, electric automobile arises at the historic moment, and along with the development of electric automobile, recent high-power electric bus
Also the rapid enhancement of charge power needed for adding the ranks of electric automobile, electric automobile.
For promoting the use time of electric automobile, it is however generally that, shorter to the time of charging electric vehicle, as
This, need to promote charge power and at short notice electric automobile could be full of electric power.
But, if having multi-section electric automobile to need to be charged with the time, existing electrical network cannot bear so
Huge output, to allow existing electrical network can bear above-mentioned output, then needs overall electricity
Net is transformed again, and the time needed for its transformation is the hugest with expense.
As can be seen here, above-mentioned existing mode, it is clear that still suffer from inconvenience and defect, and have much room for improvement.In order to
Solving the problems referred to above, association area is sought solution the most painstakingly, but is developed the most not yet
Go out suitable solution.
Summary of the invention
Summary of the invention aims to provide the simplification summary of the present invention, so that reader possesses basic reason to the present invention
Solve.This summary of the invention the complete overview of non-invention, and it is not intended to pointing out the embodiment of the present invention
Key/critical element or define the scope of the present invention.
One purpose of present invention is to provide a kind of electric power supply system and electric power conversion method therein,
So as to improving the problem existing for prior art.
For reaching above-mentioned purpose, a technical scheme of present invention is about a kind of electric power supply system, its bag
Containing input stage change-over circuit, the first energy-storage travelling wave tube and output stage change-over circuit.In structure, the first energy storage
Element is electrically connected to input stage change-over circuit, and output stage change-over circuit is electrically connected to the first energy storage unit
Part.In operation, input stage change-over circuit is in order to be charged the first energy-storage travelling wave tube, by the first energy storage unit
Part stores rechargeable electrical energy, and rechargeable electrical energy is converted to export electric energy and gives with power supply outside negative by output stage change-over circuit
Carrying, wherein input stage change-over circuit has the first electrical power, and output stage change-over circuit has the second electrical power,
Second electrical power is more than the first electrical power.
According to one embodiment of the invention, aforementioned first energy-storage travelling wave tube is an accumulator or a super capacitor.
According to another embodiment of the present invention, the first energy-storage travelling wave tube is charged by aforementioned input stage change-over circuit
Time is a very first time, and output stage change-over circuit is powered, to give time of external loading be one second time,
Wherein the second time was less than the very first time.
According to yet another embodiment of the invention, aforementioned output stage change-over circuit is intermittently powered and is given external loading.
According to another embodiment of the present invention, when output stage change-over circuit is intermittently powered and is given external loading,
Input stage change-over circuit stops being charged the first energy-storage travelling wave tube.
According to further embodiment of this invention, electric power supply system also includes at least one auxiliary charging module, passes through
First energy-storage travelling wave tube is charged by this auxiliary charging module and this input stage change-over circuit jointly.
According to another embodiment of the present invention, aforementioned auxiliary charging module includes that solar electrical energy generation module, wind-force are sent out
One of them of electricity module and fossil fuel electricity generation module.
According to yet another embodiment of the invention, aforementioned first energy-storage travelling wave tube includes the first end and the second end, and defeated
Go out a grade change-over circuit and include first input end, the second input, the first outfan and the second outfan.The
One input is electrically connected to the first end of the first energy-storage travelling wave tube, and the second input is electrically connected to the first energy storage
Second end of element, the first outfan is electrically connected to one end of external loading, and the second outfan is electrically connected with
To the first end of the first energy-storage travelling wave tube, and the second end of the first energy-storage travelling wave tube is electrically connected to the another of external loading
One end.Second electrical power of aforementioned output stage change-over circuit is less than external loading power demand.
According to further embodiment of this invention, aforementioned first energy-storage travelling wave tube has one the 3rd electrical power, by output
External loading is powered by level change-over circuit and the first energy-storage travelling wave tube jointly, and external loading power demand is equal to
3rd electrical power.
According to yet another embodiment of the invention, aforementioned electric power supply system also includes the second energy-storage travelling wave tube, the second storage
The first end and the second end can be included by element, and the first energy-storage travelling wave tube includes the first end and the second end.Aforementioned
Output stage change-over circuit includes first input end, the second input, the first outfan and the second outfan.
First input end is electrically connected to the first end of the first energy-storage travelling wave tube, and the second input is electrically connected to the first storage
Second end of energy element, the first outfan is electrically connected to one end of external loading, and the second outfan electrically connects
It is connected to the first end of the second energy-storage travelling wave tube, and the second end of the second energy-storage travelling wave tube is electrically connected to external loading
The other end.Second electrical power of aforementioned output stage change-over circuit is less than external loading power demand.
According to another embodiment of the present invention, aforementioned second energy-storage travelling wave tube has one the 4th electrical power, by output
External loading is jointly carried out by level the second electrical power of change-over circuit with the 4th electrical power of the second energy-storage travelling wave tube
Power supply.
According to yet another embodiment of the invention, when this external loading power demand is constant, aforementioned output stage is changed
Second electrical power of circuit is correspondingly adjusted according to the 4th electrical power of the second energy-storage travelling wave tube.
According to another embodiment of the present invention, aforementioned first energy-storage travelling wave tube and the second energy-storage travelling wave tube electrically isolate.
According to yet another embodiment of the invention, the second end of aforementioned first energy-storage travelling wave tube is electrically connected to the second energy storage
First end of element.
For reaching above-mentioned purpose, another technical scheme of present invention is about in a kind of electric power supply system
Electric power conversion method, electric power supply system includes input stage change-over circuit, the first energy-storage travelling wave tube and output stage
Change-over circuit.Electric power conversion method comprises the steps of
By an input stage change-over circuit, the first energy-storage travelling wave tube is charged, and is stored by the first energy-storage travelling wave tube
Rechargeable electrical energy, wherein input stage change-over circuit has the first electrical power；And
By output stage change-over circuit, rechargeable electrical energy is converted to export electric energy and gives external loading, wherein with power supply
Output stage change-over circuit has the second electrical power；
Wherein the second electrical power is more than the first electrical power.
According to one embodiment of the invention, aforementioned first energy-storage travelling wave tube is an accumulator or a super capacitor.
According to another embodiment of the present invention, the time being charged the first energy-storage travelling wave tube is a very first time,
And powered by output stage change-over circuit that to give time of external loading be one second time, wherein the second time is little
In the very first time.
According to yet another embodiment of the invention, be converted to export electric energy by rechargeable electrical energy by output stage change-over circuit
Give external loading step with power supply to comprise:
Intermittently powered by output stage change-over circuit and give external loading.
According to further embodiment of this invention, aforementioned electric power conversion method also includes:
By at least one auxiliary charging module, the first energy-storage travelling wave tube is charged.
According to yet another embodiment of the invention, aforementioned electric power conversion method also includes:
First energy-storage travelling wave tube electrically concatenates the outfan to output stage change-over circuit；And
Jointly external loading is powered by output stage change-over circuit and the first energy-storage travelling wave tube
Wherein this second electrical power of this output stage change-over circuit is less than this external loading power demand.
Therefore, according to the technology contents of the present invention, the embodiment of the present invention is by providing a kind of electric power supply system
And electric power conversion method therein, need huge charge power during so as to improving charging electric vehicle, and lead
Causing existing electrical network cannot the problem of load.
After refering to following description, persond having ordinary knowledge in the technical field of the present invention works as can be easily
Understand the essence spirit of the present invention and other goals of the invention, and the technology used in the present invention means and enforcement
Aspect.
Accompanying drawing explanation
For the above and other purpose of the present invention, feature, advantage can be become apparent with embodiment, appended
Being described as follows of accompanying drawing:
Fig. 1 is the schematic diagram illustrating a kind of electric power supply system according to one embodiment of the invention；
Fig. 2 A is the schematic diagram illustrating a kind of electric power supply system according to another embodiment of the present invention；
Fig. 2 B is the schematic diagram illustrating a kind of electric power supply system according to further embodiment of this invention；
Fig. 2 C is the schematic diagram illustrating a kind of electric power supply system according to yet another embodiment of the invention；
Fig. 3 is the partial circuit schematic diagram illustrating a kind of electric power supply system according to one embodiment of the invention；
Fig. 4 is the partial circuit signal illustrating a kind of electric power supply system according to another embodiment of the present invention
Figure；
Fig. 5 is the partial circuit signal illustrating a kind of electric power supply system according to further embodiment of this invention
Figure；
Fig. 6 is to illustrate according to the filling of energy-storage travelling wave tube in a kind of electric power supply system of yet another embodiment of the invention
Electrical power schematic diagram；
Fig. 7 is to illustrate according to output stage conversion electricity in a kind of electric power supply system of further embodiment of this invention
Road powers and gives the output power schematic diagram of load；
Fig. 8 is to illustrate the power converter side according in a kind of electric power supply system of an embodiment of the present invention
Method flow chart.
According to usual operating type, in figure, various features are not drawn to scale with element, and it draws mode
It is to present specific features related to the present invention and element in optimal manner.Additionally, at different accompanying drawings
Between, censure similar elements/components with same or analogous component symbol.
Detailed description of the invention
In order to the narration making the present invention is more detailed with complete, below for embodiments of the present invention and tool
Body embodiment proposes illustrative description；But this not implements or uses the unique of the specific embodiment of the invention
Form.Embodiment covers the feature of multiple specific embodiment and these are concrete in order to construction and operation
The method step of embodiment and its order.But, other specific embodiments also can be utilized identical or equal to reach
Deng function and sequence of steps.
Unless this specification is defined otherwise, belonging to the implication of science and technology vocabulary used herein and the present invention
Technical field has usually intellectual understood and usual same meaning.Additionally, in discord context punching
When prominent, the singular noun used by this specification contains the complex number type of this noun；And plural name used
Also the odd number type of this noun is contained during word.
It addition, about " coupling " used herein or " connection ", two or multiple element phases all can be referred to
Directly make entity or in electrical contact mutually, or mutually indirectly put into effect body or in electrical contact, be also referred to as two or multiple
Element mutual operation or action.
For solving the problem existing for prior art, the present invention proposes the electric power supply system of a kind of innovation, this
Electric power supply system is depicted in Fig. 1.As it is shown in figure 1, electric power supply system comprises input stage change-over circuit
110, the first energy-storage travelling wave tube 120 and output stage change-over circuit 130.
In structure, the first energy-storage travelling wave tube 120 is electrically connected to input stage change-over circuit 110, and output stage
Change-over circuit 130 is electrically connected to the first energy-storage travelling wave tube 120.
In operation, input stage change-over circuit 110 is in order to be charged the first energy-storage travelling wave tube 120, by the
One energy-storage travelling wave tube 120 stores rechargeable electrical energy.Then, rechargeable electrical energy is converted to by output stage change-over circuit 130
Output electric energy gives external loading 600 with power supply.Wherein input stage change-over circuit 110 has the first electrical power,
Output stage change-over circuit 130 has the second electrical power, and the second electrical power is more than the first electrical power.
In time realizing the present invention, input stage change-over circuit 110 can be to exchange direct current (AC/DC) change-over circuit,
First energy-storage travelling wave tube 120 can be accumulator or super capacitor, and output stage change-over circuit 130 can be that direct current is to directly
Stream (DC/DC) change-over circuit, rechargeable electrical energy can be the unidirectional current stored by the first energy-storage travelling wave tube 120.In behaviour
On work, AC/DC change-over circuit in order to the three-phase alternating current from electrical network 500 is converted to unidirectional current, and
Accumulator or super capacitor are charged.Then, DC/DC change-over circuit extraction accumulator or super electricity
Unidirectional current stored by appearance, and carry out changing by aforementioned unidirectional current and export a high power unidirectional current and give with power supply
External loading 600.So the present invention is not limited thereto, and one skilled in the art ought be optionally
Suitable element is used to realize the present invention.
Even if it follows that electrical network 500 is only provided that fixing alternating current, but through input stage conversion electricity
Alternating current is converted to unidirectional current and is stored in the first energy-storage travelling wave tube 120, output stage change-over circuit by road 110
Rechargeable electrical energy stored by first energy-storage travelling wave tube 120 can be converted to high-power output electric energy by 130, with
External loading 600 is given in power supply.Consequently, it is possible to electric power supply system proposed by the invention can be to electrical network
Under 500 situations impacted, high-power output electric energy still can be provided to give external loading with power supply
600。
In one embodiment, looking at Fig. 2 A, it is to illustrate a kind of electricity according to another embodiment of the present invention
The schematic diagram of power supply system.Solar charging is also comprised compared to the electric power supply system in Fig. 1, Fig. 2 A
Electricity module, common with input stage change-over circuit 110 to the first energy-storage travelling wave tube 120 by solar recharging module
(comprising battery back-sheet 142 and solar energy conversion module 144) is charged.
In another embodiment, looking at Fig. 2 B, it is to illustrate the one according to another embodiment of the present invention
The schematic diagram of electric power supply system.Also comprise wind-force compared to the electric power supply system in Fig. 1, Fig. 2 B to send out
Electricity module or fossil fuel electricity generation module, by wind power generation module or fossil fuel electricity generation module and input stage
Change-over circuit 110 is common comprises input source 152 and AC/DC modulus of conversion to the first energy-storage travelling wave tube 120(
Block 154) it is charged.
In an optional embodiment, looking at Fig. 2 C, it illustrates according to another embodiment of the present invention
A kind of schematic diagram of electric power supply system.Also comprise too compared to the electric power supply system in Fig. 1, Fig. 2 C
Sun can charging module, wind power generation module and fossil fuel electricity generation module, and can pass through solar recharging module,
Wind power generation module and both at least a part of which of fossil fuel electricity generation module and input stage change-over circuit 110 are altogether
It is charged with to the first energy-storage travelling wave tube 120.
When realizing the present invention, according to powerful output stage change-over circuit 130, in addition to relatively costly,
The size of output stage change-over circuit 130 also can be relatively big, therefore, the present invention more in electric power supply system the
Between one energy-storage travelling wave tube 120 and output stage change-over circuit 130, use different configuration modes, defeated to reduce
Going out the power grade of grade change-over circuit 130, aforementioned arrangements mode is illustrated in Fig. 3.
As it is shown on figure 3, the first energy-storage travelling wave tube 120 includes the first end 122 and the second end 124, and export
Level change-over circuit 130 include first input end IN1, the second input IN2, the first outfan OUT1 with
And the second outfan OUT2.First input end IN1 is electrically connected to the first end of the first energy-storage travelling wave tube 120
122, the second input IN2 are electrically connected to the second end 124 of the first energy-storage travelling wave tube 120.Additionally, the
One outfan OUT1 is electrically connected to one end of external loading 600, and the second outfan OUT2 is electrically connected with
To the first end 122 of the first energy-storage travelling wave tube 120, and the second end 124 of the first energy-storage travelling wave tube 120 electrically connects
It is connected to the other end of external loading 600.
Consequently, it is possible to the output part of output stage change-over circuit 130 concatenates with the first energy-storage travelling wave tube 120, because of
This, power transformation circuit can be simultaneously common through output stage change-over circuit 130 and the first energy-storage travelling wave tube 120
Load 600 is charged or powers, thus, the second electrical power of output stage change-over circuit 130 need not wait
It is same as loading 600 power demands, it practice, owing to the first energy-storage travelling wave tube 120 provides a part of electrical power,
Second electrical power of output stage change-over circuit 130 is less than load 600 power demands.Therefore, output stage
The power grade of change-over circuit 130 is minimized, so can reduce output stage change-over circuit 130 cost and
Size.
Specifically, aforementioned first energy-storage travelling wave tube 120 has the 3rd electrical power, due in the 3rd electrical power
A part of power is changed with output stage as the input power of output stage change-over circuit 130, another part power
External loading 600 is powered by the output of circuit 130 together, therefore, and this first energy-storage travelling wave tube
3rd electrical power of 120 is equal to the output power needed for external loading 600.
Similarly, in order to reduce cost and the size of output stage change-over circuit 130, the present invention more supplies in electric power
Answer and system uses another kind of different configuration mode, to reduce the power etc. of output stage change-over circuit 130
Level, configuration mode herein is illustrated in Fig. 4.
As shown in Figure 4, electric power supply system also includes the second energy-storage travelling wave tube 160, the second energy-storage travelling wave tube 160
Including the first end 162 and the second end 164, and the first energy-storage travelling wave tube 120 includes the first end 122 and
Two ends 124.Aforementioned output stage change-over circuit 130 include first input end IN1, the second input IN2,
First outfan OUT1 and the second outfan OUT2.First input IN1 is electrically connected to the first energy storage
First end 122 of element 120, the second input IN2 is electrically connected to the second of the first energy-storage travelling wave tube 120
End 124, the first outfan OUT1 is electrically connected to one end of external loading 600, the second outfan OUT2
It is electrically connected to the first end 162 of the second energy-storage travelling wave tube 160, and the second end 164 of the second energy-storage travelling wave tube 160
It is electrically connected to the other end of external loading 600.
Consequently, it is possible to the output part of output stage change-over circuit 130 concatenates with the second energy-storage travelling wave tube 160, because of
This, power transformation circuit can be simultaneously common through output stage change-over circuit 130 and the second energy-storage travelling wave tube 160
Load 600 is charged, thus, the second electrical power of output stage change-over circuit 130 is not necessarily equivalent to bear
Carry 600 power demands, it practice, owing to the second energy-storage travelling wave tube 160 provides a part of electrical power, output
Second electrical power of level change-over circuit 130 is less than load 600 power demands.Therefore, output stage conversion
The power grade of circuit 130 is minimized, and can reduce cost and the size of output stage change-over circuit 130.
Specifically, aforementioned second energy-storage travelling wave tube 160 has the 4th electrical power, by output stage change-over circuit
External loading 600 is jointly carried out by second electrical power of 130 with the 4th electrical power of the second energy-storage travelling wave tube 160
Power supply, output stage change-over circuit 130 is not required to provide alone external loading 600 power demand.That is, second
4th electrical power of energy-storage travelling wave tube 160 and the second electrical power sum of output stage change-over circuit 130 are outer equal to this
Section load 600 power demand.
Fig. 5 is the partial circuit signal illustrating a kind of electric power supply system according to yet another embodiment of the invention
Figure.Compared to Fig. 4, the second end 124 of the first energy-storage travelling wave tube 120 shown in Fig. 5 is electrically connected to
First end 126 of two energy-storage travelling wave tubes 160, that is, the first energy-storage travelling wave tube 120 and the second energy-storage travelling wave tube 160
Use the mode of electrical non-isolated.Additionally, please with reference to Fig. 4 and Fig. 5, found out both difference
It is that first energy-storage travelling wave tube 120 of Fig. 4 electrically isolates with the second energy-storage travelling wave tube 160.
For making the spirit of the present invention it is more readily appreciated that refer to Fig. 6 and Fig. 7.Fig. 6 is to illustrate according to this
The charge power schematic diagram of energy-storage travelling wave tube in a kind of electric power supply system of bright another embodiment.As it can be seen,
In between time t1 to t2, input stage change-over circuit is to energy-storage travelling wave tube (the first energy-storage travelling wave tube 120 or the second energy storage
Element 160) it is charged, its duration of charge is T1.Additionally, between time t2 to t3, output stage
External loading is powered by change-over circuit by the rechargeable electrical energy corresponding to energy-storage travelling wave tube, when its power supply continues
Between be T2.Thus, it is possible to be clear that external loading 600 is given in output stage change-over circuit 130 power supply
The duration T 1 that energy-storage travelling wave tube is charged by the second time T2 less than input stage change-over circuit 110, also
That is, when the electric power supply system of the present invention passes through the charging that output stage change-over circuit 130 can shorten external loading
Between.
Additionally, Fig. 7 is to illustrate to turn according to output stage in a kind of electric power supply system of further embodiment of this invention
Change circuit to power and give the output power schematic diagram of load.As it can be seen, between time t4 to t5 and the time
Between t6 to t7, load 600 is given in output stage change-over circuit 130 power supply, and its persistent period is respectively T2.By
This figure is found out that output stage change-over circuit 130 is that intermittently external loading 600 is given in power supply.Implement one
In mode, when output stage change-over circuit 130 is intermittently powered and given external loading 600, input stage is changed
Circuit 110 stops being charged the first energy-storage travelling wave tube 120.
Fig. 8 is to illustrate the power converter according in a kind of electric power supply system of another embodiment of the present invention
Method flow diagram, wherein electric power supply system includes input stage change-over circuit, the first energy-storage travelling wave tube and output
Level change-over circuit.As it can be seen, electric power conversion method 800 comprises the steps of
Step 810: the first energy-storage travelling wave tube is charged by input stage change-over circuit, and by the first energy storage
Element stores rechargeable electrical energy, and wherein input stage change-over circuit has the first electrical power；And
Step 820: by output stage change-over circuit, rechargeable electrical energy is converted to export electric energy and gives outside with power supply
Load, wherein output stage change-over circuit has the second electrical power；Wherein the second electrical power is more than the first electrical power.
For making electric power conversion method in the electric power supply system of the embodiment of the present invention it is more readily appreciated that the most in the lump
With reference to Fig. 1 and Fig. 8, to explain the spirit of the embodiment of the present invention illustratively.In step 810, to
The step that one energy-storage travelling wave tube 120 is charged can be realized by input stage change-over circuit 110.Then, please
With reference to step 820, by output stage change-over circuit 130, rechargeable electrical energy is converted to export electric energy and gives with power supply
External loading 600.
Even if it follows that electrical network 500 is only provided that fixing alternating current, but through the first energy-storage travelling wave tube
120 store rechargeable electrical energy, can be stored up by the first energy-storage travelling wave tube 120 by output stage change-over circuit 130
The rechargeable electrical energy deposited is converted to high-power output electric energy, gives external loading 600 with power supply.Consequently, it is possible to
Can be not to electrical network 500 by the electric power conversion method 800 in electric power supply system proposed by the invention
Under the situation impacted, high-power output electric energy still can be provided to give external loading 600 with power supply.
Continuing referring to Fig. 1 and Fig. 8, in one embodiment, the first energy-storage travelling wave tube 120 can be an accumulator
Or a super capacitor.In another embodiment, see Fig. 6 the most in the lump, between time t1 to t2, to storage
Can be charged by element (the first energy-storage travelling wave tube 120), its duration of charge is T1.Additionally, in time t2
To between t3, giving external loading 600 by output stage change-over circuit 130 power supply, its duration of power supply is
T2.Thus, it is possible to be clear that the second time T2 is less than very first time T1.Additionally, see the most in the lump
Fig. 7, electric power conversion method 800 intermittently can be powered by output stage change-over circuit 130 as shown in Figure 7
Give external loading 600.
Continuing referring to Fig. 1 and Fig. 8, in one embodiment, electric power conversion method 800 also includes by extremely
First energy-storage travelling wave tube 120 is charged by a few auxiliary charging module.
In order to reduce cost and the size of output stage change-over circuit 130, the power converter side of the embodiment of the present invention
Method 800 also comprises the first energy-storage travelling wave tube 120 is electrically concatenated the outfan to output stage change-over circuit 130,
Then, common to this external loading by this output stage change-over circuit 130 and this first energy-storage travelling wave tube 120
600 are powered, and wherein this second electrical power of this output stage change-over circuit 130 is less than this external loading 600
Power demand.In the present embodiment, the output of the first energy-storage travelling wave tube 120 is the 3rd electrical power, outside
Load 600 power demands equal to the 3rd electrical power.
Consequently, it is possible to output stage change-over circuit 130 only needs to provide the part in external loading 600 power demand
Power, therefore, the power grade of output stage change-over circuit 130 is minimized, and can reduce output stage conversion
The cost of circuit 130 and size.
Similarly, in order to reduce cost and the size of output stage change-over circuit 130, the electricity of the embodiment of the present invention
Force transformation method 800 also comprises and electrically concatenates the second energy-storage travelling wave tube 160 to output stage change-over circuit 130
Outfan, then, common to this by this output stage change-over circuit 130 and this second energy-storage travelling wave tube 160
External loading 600 is powered.In the present embodiment, the output of the second energy-storage travelling wave tube 160 is the 4th
Electrical power, the 4th electrical power of the second electrical power and the second energy-storage travelling wave tube 160 and be external loading 600
Power demand.
Consequently, it is possible to output stage change-over circuit 130 only needs to provide the part in external loading 600 power demand
Power, therefore, the power grade of output stage change-over circuit 130 is minimized, and can reduce output stage conversion
The cost of circuit 130 and size.
Electric power conversion method 800 in electric power supply system as above all can by software, hardware and/or
Firmware performs.For example, if to perform speed and accuracy for primarily considering, the most substantially can be selected for
Hardware and/or firmware are main；If with design flexibility for primarily considering, it is main for the most substantially can be selected for software；
Or, software, hardware and firmware work compound can be used simultaneously.It will be understood that these examples provided above
Son is not so-called, and which is better and which is worse point, and also and be not used to limit the present invention, those who are familiar with this art work as when regarding
Time need elasticity design.
Furthermore, art has usually intellectual when it can be appreciated that electric power in electric power supply system
Each step in alternative approach 800 according to its perform function named, merely to allow this case technology more
Add and become apparent, be not limited to such step.Each step is integrated into same step or is split into
Multiple steps, or change to either step another step performs, all still fall within the embodiment party of the present invention
Formula.
From the invention described above embodiment, the application present invention has following advantages.The embodiment of the present invention is led to
Cross a kind of electric power supply system of offer and electric power conversion method therein 800, so as to improving charging electric vehicle
Time need huge charge power, and cause the existing electrical network cannot the problem of load.
Specifically, by a kind of electric power supply system and the electric power conversion method therein of the embodiment of the present invention
800, even if electrical network 500 is only provided that fixing alternating current, but incite somebody to action through input stage change-over circuit 110
Alternating current is converted to unidirectional current and is stored in the first energy-storage travelling wave tube 120, output stage change-over circuit 130
Rechargeable electrical energy stored by first energy-storage travelling wave tube 120 is converted to high-power output electric energy, outside giving with power supply
Section load 600.Consequently, it is possible to electrical network 500 can not caused by electric power supply system proposed by the invention
Under the situation of impact, high-power output electric energy still can be provided to give external loading 600 with power supply.
Additionally, due to the output part of output stage change-over circuit 130 concatenates with the first energy-storage travelling wave tube 120, because of
This, power transformation circuit can come negative through output stage change-over circuit 130 and the first energy-storage travelling wave tube 120 simultaneously
Carry 600 to be charged, thus, the power grade of output stage change-over circuit 130 is minimized, and can reduce
The cost of output stage change-over circuit 130 and size.
Although disclosing the specific embodiment of the present invention above in embodiment, so it is not limited to this
Bright, persond having ordinary knowledge in the technical field of the present invention, do not departing from principle and the spirit of the present invention
Under situation, when it being carried out various change and modification, therefore protection scope of the present invention is when with subsidiary right
Claim is defined in the range of standard.
Claims (17)
1. an electric power supply system, it is characterised in that including:
One input stage change-over circuit；
One first energy-storage travelling wave tube, is electrically connected to this input stage change-over circuit, wherein this input stage change-over circuit
In order to this first energy-storage travelling wave tube to be charged, and stored a rechargeable electrical energy by this first energy-storage travelling wave tube；And
One output stage change-over circuit, is electrically connected to this first energy-storage travelling wave tube, and this output stage change-over circuit should
Rechargeable electrical energy is converted to an output electric energy and gives an external loading with power supply；
Wherein this input stage change-over circuit has one first electrical power, and this output stage change-over circuit has one second
Electrical power, this second electrical power is more than this first electrical power；
Wherein this electric power supply system also includes one second energy-storage travelling wave tube, and this second energy-storage travelling wave tube includes one first
End and one second end, and this first energy-storage travelling wave tube includes one first end and one second end, wherein this output
Level change-over circuit includes:
One first input end, is electrically connected to this first end of this first energy-storage travelling wave tube；
One second input, is electrically connected to this second end of this first energy-storage travelling wave tube；
One first outfan, is electrically connected to one end of this external loading；And
One second outfan, is electrically connected to this first end of this second energy-storage travelling wave tube, wherein this second energy storage
This second end of element is electrically connected to the other end of this external loading；
Wherein this second electrical power of this output stage change-over circuit is less than this external loading power demand.
Electric power supply system the most according to claim 1, it is characterised in that this first energy-storage travelling wave tube
It is an accumulator or a super capacitor.
Electric power supply system the most according to claim 1, it is characterised in that this input stage conversion electricity
The time that this first energy-storage travelling wave tube is charged by road is a very first time, and this output stage change-over circuit is powered
The time giving this external loading was one second time, and wherein this second time is less than this very first time.
Electric power supply system the most according to claim 1, it is characterised in that this output stage conversion electricity
Road intermittently powers and gives this external loading.
Electric power supply system the most according to claim 4, it is characterised in that when this output stage is changed
Circuit is intermittently powered when giving this external loading, and this input stage change-over circuit stops this first energy-storage travelling wave tube
It is charged.
Electric power supply system the most according to claim 1, it is characterised in that this electric power supply system
Also include at least one auxiliary charging module, the most right by this auxiliary charging module and this input stage change-over circuit
This first energy-storage travelling wave tube is charged.
Electric power supply system the most according to claim 6, it is characterised in that this auxiliary charging module
Including a solar electrical energy generation module, a wind power generation module and a fossil fuel electricity generation module wherein it
One.
Electric power supply system the most according to claim 1, it is characterised in that this second energy-storage travelling wave tube
There is one the 4th electrical power, by this second electrical power of this output stage change-over circuit and this second energy-storage travelling wave tube
The 4th electrical power jointly this external loading is powered.
Electric power supply system the most according to claim 8, it is characterised in that when this external loading institute
When needing power invariability, this second electrical power of this output stage change-over circuit according to this second energy-storage travelling wave tube this
Four electrical power and be correspondingly adjusted.
Electric power supply system the most according to claim 1, it is characterised in that this first energy-storage travelling wave tube
Electrically isolate with this second energy-storage travelling wave tube.
11. electric power supply systems according to claim 1, it is characterised in that this first energy-storage travelling wave tube
This second end be electrically connected to this first end of this second energy-storage travelling wave tube.
Electric power conversion method in 12. 1 kinds of electric power supply systems, it is characterised in that this electric power supply system
Change including an input stage change-over circuit, one first energy-storage travelling wave tube, one second energy-storage travelling wave tube and an output stage
Circuit, wherein this first energy-storage travelling wave tube includes one first end and one second end, and this second energy-storage travelling wave tube includes
One first end and one second end, this output stage change-over circuit include a first input end, one second input,
One first outfan and one second outfan, wherein this first input end of this output stage change-over circuit electrically connects
Being connected to this first end of this first energy-storage travelling wave tube, this second input of this output stage change-over circuit is electrically connected with
To this second end of this first energy-storage travelling wave tube, this first outfan of this output stage change-over circuit is electrically connected to
One end of one external loading, this second outfan of this output stage change-over circuit is electrically connected to this second energy storage
This first end of element, this second end of this second energy-storage travelling wave tube is electrically connected to another of this external loading
End, wherein this electric power conversion method includes:
By an input stage change-over circuit, one first energy-storage travelling wave tube is charged, and by this first energy-storage travelling wave tube
Storing a rechargeable electrical energy, wherein this input stage change-over circuit has one first electrical power；And
By an output stage change-over circuit, this rechargeable electrical energy is converted to an output electric energy give outside this with power supply
Load, wherein this output stage change-over circuit has one second electrical power；
Wherein this second electrical power is more than this first electrical power, this second electrical power of this output stage change-over circuit
Less than this external loading power demand.
13. electric power conversion methods according to claim 12, it is characterised in that this first energy storage unit
Part is an accumulator or a super capacitor.
14. electric power conversion methods according to claim 12, it is characterised in that to this first energy storage
The time that element is charged is a very first time, and powered by this output stage change-over circuit give this outside bear
The time carried was one second time, and wherein this second time is less than this very first time.
15. electric power conversion methods according to claim 12, it is characterised in that by this output stage
This rechargeable electrical energy is converted to this output electric energy and gives this external loading step comprise with power supply by change-over circuit:
Intermittently powered by this output stage change-over circuit and give this external loading.
16. electric power conversion methods according to claim 12, it is characterised in that also include:
By at least one auxiliary charging module, this first energy-storage travelling wave tube is charged.
17. electric power conversion methods according to claim 12, it is characterised in that also include:
Jointly this external loading is powered by this output stage change-over circuit and this first energy-storage travelling wave tube.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310218298.9A CN104218629B (en) | 2013-06-04 | Electric power supply system and electric power conversion method therein | |
| TW102122892A TWI556538B (en) | 2013-06-04 | 2013-06-27 | Power supply system and method for converting power thereof |
| EP14170985.7A EP2810817B1 (en) | 2013-06-04 | 2014-06-03 | Power supply system and method for converting power thereof |
| US14/294,162 US9653916B2 (en) | 2013-06-04 | 2014-06-03 | Power supply system and method for converting power thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310218298.9A CN104218629B (en) | 2013-06-04 | Electric power supply system and electric power conversion method therein |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104218629A CN104218629A (en) | 2014-12-17 |
| CN104218629B true CN104218629B (en) | 2016-11-30 |
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