CN105203861A - Aging test system of energy storage power station - Google Patents
Aging test system of energy storage power station Download PDFInfo
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- CN105203861A CN105203861A CN201410228216.3A CN201410228216A CN105203861A CN 105203861 A CN105203861 A CN 105203861A CN 201410228216 A CN201410228216 A CN 201410228216A CN 105203861 A CN105203861 A CN 105203861A
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Abstract
The invention discloses an aging test system of an energy storage power station. The aging test system comprises an alternating-current power supply, wherein an input end of the alternating-current power supply is connected with a power grid, and the alternating-current power supply supplies a specific voltage; a voltage bus, wherein an output end of the alternating-current power supply is connected with the voltage bus; N battery packs; and N energy storage transverters in corresponding connection with the N battery packs, wherein the N battery packs are connected with the voltage bus through the N energy storage transverters, partial battery packs in the N battery packs are in a discharging state and charge the voltage bus through the corresponding energy storage transverters, and the other battery packs are in a charging state and is charged by the voltage bus through the corresponding energy storage transverters. By adopting the aging test system of the energy storage power station, the consumption of the power grid is lowered, the requirement on the power grid capacity is lowered, and aging tests can be simultaneously carried out on a plurality of energy storage systems.
Description
Technical field
The present invention relates to energy-accumulating power station technical field, particularly relate to a kind of aging testing system of energy-accumulating power station.
Background technology
Along with the application of large-scale energy-accumulating power station, the energy-accumulating power station application of upper MW class is more and more extensive, but the thing followed is the burn-in test problem of large-scale accumulator system.At present, relatively more conventional ageing testing method mainly contains: (1) can use high-power frequency conversion AC power to build burn-in test topology; (2) AC power can be used to build the mode of production burn-in test topology or multiple stage access operation of power networks in parallel.Particularly, as shown in Figure 1, be respectively topological structure when battery charging and battery discharge, corresponding energy storage transverter (PCS) can be passed through simultaneously and discharge to voltage bus or charged from voltage bus by corresponding energy storage transverter (PCS) simultaneously.
Current Problems existing is: (1) uses high-power frequency conversion AC power to build burn-in test topology, need to buy high-power ac power, the maximum AC power of existing market is about 500KW, and takes up an area larger, in situation as sufficient in product production capacity, this burn-in test can become production capacity bottleneck; (2) high-power ac power is unidirectional mostly, only can charge to battery, and battery discharge also needs special load consumption, causes the waste to electric energy.
Summary of the invention
Object of the present invention is intended to solve one of above-mentioned technical matters at least to a certain extent.
For this reason, one object of the present invention is the aging testing system proposing a kind of energy-accumulating power station.This system can improve production capacity, reduces electrical network consumption, reduces the requirement to net capacity, and can realize multiple stage accumulator system burn-in test simultaneously.
To achieve these goals, the aging testing system of the energy-accumulating power station of one aspect of the present invention embodiment, comprising: AC power, the input end access electrical network of described AC power, and described AC power provides the power supply of specific voltage; Voltage bus, the output terminal of described AC power accesses described voltage bus; N number of electric battery and the N number of energy storage transverter that connect corresponding to described N number of electric battery, described N number of electric battery accesses described voltage bus by described N number of energy storage transverter, wherein, in described N number of electric battery, part electric battery is in discharge condition and is discharged to described voltage bus by corresponding energy storage transverter, and in described N number of electric battery, another part electric battery is in charged state and is charged from described voltage bus by corresponding energy storage transverter.
In addition, according to the aging testing system also additional technical feature specific as follows of the energy-accumulating power station of the embodiment of the present invention:
Described N is even number, and the power of described N number of energy storage transverter is all equal, and wherein, N/2 electric battery is in discharge condition, and N/2 electric battery is in charged state.Almost nil to the consumption of electrical network like this.
The aging testing system of described energy-accumulating power station also comprises: load, and described load is connected with described voltage bus.Thus, electric discharge or energy feedback is realized to the function of electrical network by load consumption.
The aging testing system of described energy-accumulating power station also comprises: transformer, and the output terminal of described AC power accesses described voltage bus by described transformer.Thus, AC power by transformer for voltage bus provides voltage support needed for it.
Described AC power is two-way exchange power supply.
When the power of described N number of energy storage transverter is different, according to the quantity of power determination discharge battery group and the quantity of rechargeable battery set of energy storage transverter.Thus, different burn-in test schemes can be realized.
Described N number of energy storage transverter accesses described voltage bus with parallel way.Thus, can realize part electric battery can discharge to voltage bus, and another part electric battery is simultaneously from the function of voltage bus charging.
Described specific voltage is 480V.
Described AC power is also for carrying out feed to described electrical network.Thus, the consumption of power grid energy is reduced.
Battery in described electric battery is accumulator.
According to the aging testing system of the energy-accumulating power station of the embodiment of the present invention, by the input end access electrical network of AC power, the output terminal access voltage bus of AC power, N number of electric battery is by N number of energy storage transverter access voltage bus, to build the burn-in test topological structure of large power energy storage system, wherein, in N number of electric battery, part electric battery is in discharge condition and is discharged to voltage bus by corresponding energy storage transverter, in N number of electric battery, another part electric battery is in charged state and is charged from voltage bus by corresponding energy storage transverter, to realize part charging and partial discharge, thus improve production capacity, reduce the consumption of electrical network, reduce the requirement to net capacity, and achieve multiple stage accumulator system burn-in test simultaneously.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the schematic diagram of the topological structure of the aging testing system of energy-accumulating power station in prior art;
Fig. 2 is the structural representation of the aging testing system of energy-accumulating power station according to an embodiment of the invention; And
Fig. 3 is the schematic diagram of the aging testing system of energy-accumulating power station according to the present invention's specific embodiment.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Below with reference to the accompanying drawings the aging testing system of the energy-accumulating power station according to the embodiment of the present invention is described.
Fig. 2 is the structural representation of the aging testing system of energy-accumulating power station according to an embodiment of the invention.Fig. 3 is the schematic diagram of the aging testing system of energy-accumulating power station according to the present invention's specific embodiment.
As shown in Figures 2 and 3, the aging testing system of this energy-accumulating power station can comprise: AC power 10, voltage bus 30, N number of electric battery 40 and the N number of energy storage transverter 50 that connect corresponding to N number of electric battery 40.Wherein, in an embodiment of the present invention, the battery in electric battery 40 can be accumulator.
Particularly, the input end of AC power 10 can be accessed by electrical network E, and AC power 10 can be to provide the power supply of specific voltage.Wherein, in one embodiment of the invention, this specific voltage can be 480V.That is, in an embodiment of the present invention, if do not change the equipment of voltage, then AC power can be the power supply providing 480V voltage, and like this, the output terminal of AC power 10 can directly be linked in the voltage bus 30 that voltage is 480V.
Alternatively, in one embodiment of the invention, as shown in Figure 3, the aging testing system of this energy-accumulating power station can also comprise transformer 20, and the output terminal of AC power 10 is linked into voltage bus 30 by transformer 20.That is, as shown in Figure 3, AC power 10 can provide the voltage of 380V, by transformer 20, the voltage transitions of 380V is become 480V, and is linked in voltage bus 30 that voltage is 480V.Thus, AC power 10 by transformer 20 for voltage bus 30 provides voltage support needed for it.
As shown in Figures 2 and 3, N number of electric battery 40 is linked into voltage bus 30 by N number of energy storage transverter 50.Wherein, in N number of electric battery 40, part electric battery can be in discharge condition and be discharged to voltage bus 30 by corresponding energy storage transverter 50, and in N number of electric battery 40, another part electric battery can be in charged state and be charged from voltage bus 30 by corresponding energy storage transverter 50.
Further, in one embodiment of the invention, as shown in Figure 3, N number of energy storage transverter 50 can access voltage bus 30 with parallel way.That is, N number of energy storage transverter 50 can adopt hand-in-hand connected mode to be parallel in voltage bus 30.Thus, can realize part electric battery 40 can discharge to voltage bus 30, and another part electric battery 40 is simultaneously from the function that voltage bus 30 is charged.
Further, in one embodiment of the invention, N can be even number, and the power of N number of energy storage transverter 50 is all equal, and wherein, N/2 electric battery 40 is in discharge condition, and N/2 electric battery 40 is in charged state.That is, when N is even number, and when the power of N number of energy storage transverter 50 is all equal, N/2 electric battery 40 can be in discharge condition, and N/2 electric battery 40 can be in charged state.Thus, the energy of electrical network E can not be consumed.
Specifically, first the charging and discharging state of each electric battery 40 can first be confirmed, if the quantity of electric battery 40 is even number (namely N is even number), then a control N/2 electric battery 40 can be in discharge condition and discharged to voltage bus 30 by corresponding energy storage transverter 50, N/2 electric battery 40 is in charged state and is charged from voltage bus 30 by corresponding energy storage transverter 50.Almost nil to the consumption of electrical network E like this.
Alternatively, in one embodiment of the invention, as shown in Figures 2 and 3, the aging testing system of this energy-accumulating power station also can comprise load 60, and load 60 can be connected with voltage bus 30.It should be noted that, in one embodiment of the invention, when N is odd number, and when the power of N number of energy storage transverter 50 is all equal, by load 60 consume realize electric discharge or energy feedback to electrical network E.That is, can realize between N-1 electric battery 40 charge, electric discharge backflow functionality, remaining electric battery 40 by load 60 consume realize electric discharge or energy feedback to electrical network E.Thus, the consumption of electrical network E is reduced.
Alternatively, in one embodiment of the invention, AC power 10 can be two-way exchange power supply.Wherein, in an embodiment of the present invention, AC power 10 also can be used for carrying out feed to electrical network E.That is, when AC power 10 is for two-way exchange power supply, AC power 10 can realize the function of transformation and frequency conversion, also can be used for carrying out feed to electrical network E simultaneously, to realize energy feedback function.Thus, the consumption of electrical network E energy is reduced.
It should be noted that, in one embodiment of the invention, when the power of N number of energy storage transverter 50 is different, can according to the quantity of power determination discharge battery group 40 of energy storage transverter 50 and the quantity of rechargeable battery set 40.Such as, 5 power is the energy storage transverter 50 of 100KW can be energy storage transverter 50 pairs of inductive chargings or the electric discharge of 500KW with 1 power, the energy storage transverter 50 being 100KW when 5 power is in charged state, 1 power is that the energy storage transverter 50 of 500KW is when being in discharge condition, can determine that the quantity of rechargeable battery set 40 is 5, the quantity of discharge battery group 40 is 1; The energy storage transverter 50 being 100KW when 5 power is in discharge condition, and 1 power is the energy storage transverter 50 of 500KW when being in charged state, and can determine that the quantity of discharge battery group 40 is 5, the quantity of rechargeable battery set 40 is 1.Thus, different burn-in test schemes can be realized.
According to the aging testing system of the energy-accumulating power station of the embodiment of the present invention, by the input end access electrical network of AC power, the output terminal access voltage bus of AC power, N number of electric battery is by N number of energy storage transverter access voltage bus, to build the burn-in test topological structure of large power energy storage system, wherein, in N number of electric battery, part electric battery is in discharge condition and is discharged to voltage bus by corresponding energy storage transverter, in N number of electric battery, another part electric battery is in charged state and is charged from voltage bus by corresponding energy storage transverter, to realize part charging and partial discharge, thus improve production capacity, reduce the consumption of electrical network, reduce the requirement to net capacity, and achieve multiple stage accumulator system burn-in test simultaneously.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this instructions or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. an aging testing system for energy-accumulating power station, is characterized in that, comprising:
AC power, the input end access electrical network of described AC power, described AC power is for providing the power supply of specific voltage;
Voltage bus, the output terminal of described AC power accesses described voltage bus;
N number of electric battery and the N number of energy storage transverter that connect corresponding to described N number of electric battery, described N number of electric battery accesses described voltage bus by described N number of energy storage transverter, wherein, in described N number of electric battery, part electric battery is in discharge condition and is discharged to described voltage bus by corresponding energy storage transverter, and in described N number of electric battery, another part electric battery is in charged state and is charged from described voltage bus by corresponding energy storage transverter.
2. the aging testing system of energy-accumulating power station as claimed in claim 1, it is characterized in that, described N is even number, and the power of described N number of energy storage transverter is all equal, and wherein, N/2 electric battery is in discharge condition, and N/2 electric battery is in charged state.
3. the aging testing system of energy-accumulating power station as claimed in claim 1, is characterized in that, also comprise:
Load, described load is connected with described voltage bus.
4. the aging testing system of energy-accumulating power station as claimed in claim 1, is characterized in that, also comprise:
Transformer, the output terminal of described AC power accesses described voltage bus by described transformer.
5. the aging testing system of energy-accumulating power station as claimed in claim 1, it is characterized in that, described AC power is two-way exchange power supply.
6. the aging testing system of energy-accumulating power station as claimed in claim 1, is characterized in that, when the power of described N number of energy storage transverter is different, according to the quantity of power determination discharge battery group and the quantity of rechargeable battery set of energy storage transverter.
7. the aging testing system of energy-accumulating power station as claimed in claim 1, it is characterized in that, described N number of energy storage transverter accesses described voltage bus with parallel way.
8. the aging testing system of energy-accumulating power station as claimed in claim 1, it is characterized in that, described specific voltage is 480V.
9. the aging testing system of energy-accumulating power station as claimed in claim 1, it is characterized in that, described AC power is also for carrying out feed to described electrical network.
10. the aging testing system of energy-accumulating power station as claimed in claim 1, it is characterized in that, the battery in described electric battery is accumulator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410228216.3A CN105203861A (en) | 2014-05-27 | 2014-05-27 | Aging test system of energy storage power station |
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| CN201410228216.3A CN105203861A (en) | 2014-05-27 | 2014-05-27 | Aging test system of energy storage power station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108490371A (en) * | 2018-05-24 | 2018-09-04 | 银隆新能源股份有限公司 | Energy-storage module test device |
| CN111983493A (en) * | 2019-05-24 | 2020-11-24 | 比亚迪股份有限公司 | Aging test method and device for energy storage system and energy storage system |
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Cited By (3)
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| CN108490371A (en) * | 2018-05-24 | 2018-09-04 | 银隆新能源股份有限公司 | Energy-storage module test device |
| CN111983493A (en) * | 2019-05-24 | 2020-11-24 | 比亚迪股份有限公司 | Aging test method and device for energy storage system and energy storage system |
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