CN204905886U - Be incorporated into power networks electrified access device of 10kV circuit of portable energy storage system - Google Patents
Be incorporated into power networks electrified access device of 10kV circuit of portable energy storage system Download PDFInfo
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- CN204905886U CN204905886U CN201520709232.4U CN201520709232U CN204905886U CN 204905886 U CN204905886 U CN 204905886U CN 201520709232 U CN201520709232 U CN 201520709232U CN 204905886 U CN204905886 U CN 204905886U
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Abstract
The utility model relates to a portable energy storage system technical field, refer in particular to a be incorporated into power networks electrified access device of 10kV circuit of portable energy storage system, be provided with the electrified access device of energy storage system at 10kV circuit energy storage system access point, the electrified access device of energy storage system puts in series in the 10kV circuit, the electrified access device of energy storage system is by the vacuum circuit breaker who takes isolator, the disconnecto, rise reducing transformer, high tension switchgear, voltage transformer, constitution such as current transformer and arrester, take isolator's vacuum circuit breaker and isolator cooperation setting, rise reducing transformer, high tension switchgear, voltage transformer, a current transformer, arrester and energy storage system combination sets. The utility model discloses effectively realized the access of portable energy storage system under not power failure of the 10kV circuit circumstances and withdrawed from.
Description
Technical field
The utility model relates to Mobile energy storage systems technology field, refers in particular to a kind of charged access device of Mobile energy storage system grid connection 10kV circuit.
Background technology
In recent years, along with the fast development of China's economy, more and more higher requirement is proposed to the power supply capacity of rural power grids and urban power distribution network and power supply quality.Particularly festivals or holidays rural migrant worker's scale return to one's native place and irrigation season, rural power load surges, and forms peakload, causes regional area, the phenomenon of power supply capacity deficiency appears in the local period; And in other period, electrical network electricity consumption is only general lighting electricity consumption, transformer is close to no-load running, and power load peak-valley difference is apart from large, and electricity consumption load factor is low, electric grid investment inefficiencies.For improving power supply capacity when rural power grids and urban power distribution network peakload, improve utilance and the returns of investment of electric power resource, Mobile energy storage system can become one of support technology of key simultaneously.
Mobile energy storage system layout is flexible, can be transported to the place needing to use easily, and run at rural power grids and the electric discharge of urban power distribution network peak hours, charge operation during low ebb load, realizes the effective support to rural power grids and urban power distribution network active reactive power.
The patent document of China Patent No. 201220494193.7 discloses a kind of energy storage connecting system, for the power conversion between multiple energy-storage battery and electrical network, but this energy-storage system only accesses 0.4kV distribution network system, do not consider access 10kV rural power grids and urban power distribution network system, do not consider the charged access of energy-storage system yet.
The patent document of China Patent No. 201510002368.6 provides the access way of energy storage device in 0.4kV power distribution network side, the guarantor realizing high reliability powers and seaonal load application, but this energy storage device only accesses 0.4kV distribution network system, do not consider access 10kV rural power grids and urban power distribution network system, do not consider the charged access of energy storage device yet.
The patent document of China Patent No. 201410253870.X discloses a kind of box energy storage substation structure, comprise the High-voltage Incoming Cabinet connecting high-voltage fence, the high-tension current exported by High-voltage Incoming Cabinet is delivered to low-voltage distribution cabinet through transformer, metering cabinet, be provided with accumulation chamber between described metering cabinet and low-voltage distribution cabinet, but this utility model does not consider energy storage device charged access 10kV rural power grids and urban power distribution network system.
Utility model content
For above problem, the utility model provides a kind of charged access device of Mobile energy storage system grid connection 10kV circuit, realizes the plug and play of Mobile energy storage system under 10kV circuit not power-off condition.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of charged access device of Mobile energy storage system grid connection 10kV circuit, 10kV circuit energy-storage system access point is provided with the charged access device of energy-storage system, in energy-storage system charged access device series connection access 10kV circuit, the charged access device of energy-storage system is by the vacuum circuit-breaker with isolating switch, isolating switch, step transformer, high-tension switch cabinet, voltage transformer, the composition such as current transformer and lightning arrester, vacuum circuit-breaker with isolating switch and isolating switch are equipped with, described step transformer, high-tension switch cabinet, voltage transformer, current transformer, lightning arrester and energy-storage system combine and arrange.
Furthermore, the vacuum circuit-breaker of described band isolating switch comprises the first vacuum circuit-breaker and the second vacuum circuit-breaker, first vacuum circuit-breaker is connected on bus bar side and the negative wire side of 10kV circuit, second vacuum circuit-breaker is connected on 10kV line bus side, and isolating switch is connected on 10kV circuit negative wire side.Adopt such vibrational power flow, realize the access of Mobile energy storage system under 10kV circuit not power-off condition by the combinative movement of circuit breaker and isolating switch and exit.
Furthermore, described second vacuum circuit-breaker is connected to lightning arrester and current transformer, and isolating switch is connected to voltage transformer, and current transformer and voltage transformer are connected to high-tension switch cabinet, high-tension switch cabinet is connected to step transformer, and step transformer is connected to energy-storage system.Adopt such vibrational power flow, realize the charged access of grid-connected 10kV circuit and exit.
Furthermore, described energy-storage system is made up of energy-storage battery, energy storage two way convertor, energy storage supervising device.Due to energy-storage system flexible layout, can be transported to energy-storage system access point easily, wherein energy-storage battery includes but not limited to lead acid accumulator, lithium battery, flow battery and ultracapacitor etc.
The utility model beneficial effect:
The utility model is by arranging the charged access device of energy-storage system at energy-storage system access point, realize the plug and play of Mobile energy storage system under 10kV circuit not power-off condition, avoid the economic loss that line outage brings, give full play to that Mobile energy storage system power capacity is adjustable, the advantage of system effectiveness and flexible layout, solve peakload and the seaonal load difference problem of rural power grids and urban power distribution network end, improve power supply capacity and the reliability of rural power grids and urban power distribution network.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of charged access device described in the utility model;
Fig. 2 is the schematic diagram of energy-storage system described in the utility model.
QF1, the first vacuum circuit-breaker; QF2, the second vacuum circuit-breaker; QS1, isolating switch; F1, lightning arrester; PT, voltage transformer; CT, current transformer.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the technical solution of the utility model is described.
As shown in Figure 1, the charged access device of a kind of Mobile energy storage system grid connection 10kV circuit described in the utility model, 10kV circuit energy-storage system access point is provided with the charged access device of energy-storage system, in energy-storage system charged access device series connection access 10kV circuit, the charged access device of energy-storage system is by the vacuum circuit-breaker with isolating switch, isolating switch QS1, step transformer, high-tension switch cabinet, voltage transformer pt, the compositions such as Current Transmit and lightning arrester F1, vacuum circuit-breaker and the isolating switch QS1 of described band isolating switch are equipped with, described step transformer, high-tension switch cabinet, voltage transformer pt, Current Transmit, lightning arrester F1 and energy-storage system combine and arrange.
More than form the utility model basic structure, wherein step transformer is used for the conversion of electrical network 10kV voltage and energy storage two way convertor output 380V voltage, high-tension switch cabinet realizes energy-storage system access 10kV high-tension line, voltage transformer pt summation current transformer CT measures the voltage and current at energy-storage system access 10kV circuit place respectively, configures a lightning arrester F1 avoid energy-storage system to be subjected to thunder disaster at the input side of Mobile energy storage system.
More specifically, the vacuum circuit-breaker of described band isolating switch comprises the first vacuum circuit-breaker QF1 and the second vacuum circuit-breaker QF2, first vacuum circuit-breaker QF1 is connected on bus bar side and the negative wire side of 10kV circuit, second vacuum circuit-breaker QF2 is connected on 10kV line bus side, and isolating switch QS1 is connected on 10kV circuit negative wire side.Adopt such vibrational power flow, realize the access of Mobile energy storage system under 10kV circuit not power-off condition by the combinative movement of circuit breaker and isolating switch and exit.
More specifically, described second vacuum circuit-breaker QF2 is connected to lightning arrester F1 and Current Transmit, isolating switch QS1 is connected to voltage transformer pt, Current Transmit and voltage transformer pt are connected to high-tension switch cabinet, described high-tension switch cabinet is connected to step transformer, and described step transformer is connected to energy-storage system.Adopt such vibrational power flow, realize the charged access of grid-connected 10kV circuit and exit.
When Mobile energy storage system access 10kV circuit, now circuit breaker Q F1 is in co-bit, and circuit breaker Q F2 and isolating switch QS1 is in a point position.According to the phase sequence of 10kV circuit by Mobile energy storage system side connecting breaker QF2, opposite side connects isolating switch QS1, close isolating switch QS1 and circuit breaker Q F2 successively, then cut-off breaker QF1, can realize Mobile energy storage system and not have a power failure access 10kV circuit.
When Mobile energy storage system exits 10kV circuit, now circuit breaker Q F1 is in a point position, and circuit breaker Q F2 and isolating switch QS1 is in co-bit.After energy-storage system is out of service, close circuit breaker Q F1, successively cut-off breaker QF2 and isolating switch QS1, disconnects the stube cable of Mobile energy storage system and circuit breaker Q F2 and isolating switch QS1, can realize Mobile energy storage system and not have a power failure and exit 10kV circuit.
More specifically, as shown in Figure 2, energy-storage system described in the utility model is made up of energy-storage battery, energy storage two way convertor, energy storage supervising device.Wherein energy-storage battery includes but not limited to lead acid accumulator, lithium battery, flow battery and ultracapacitor etc., and the power of energy-storage battery and capacity configure as required; Energy storage two way convertor realizes the two-way changing of energy-storage battery direct voltage and grid ac voltage; Energy storage supervising device monitors the running status of energy-storage battery and energy storage two way convertor on the one hand, guarantees energy-storage system safe and reliable operation, accepts the instruction of dispatching of power netwoks department on the other hand, and the discharge and recharge controlling energy-storage battery according to power curve runs.
Mobile energy storage system possesses charge and discharge control function on the spot, possesses distant place controlling functions simultaneously, control energy-storage system according to the power curve of dispatching of power netwoks department to run at rural power grids and the electric discharge of urban power distribution network peak hours, charge operation during low ebb load, realizes " peak load shifting " of load.
Be more than the utility model preferably execution mode, the utility model those skilled in the art can also change above-mentioned execution mode and revise.Therefore, the utility model is not limited to above-mentioned embodiment, and any apparent improvement that every those skilled in the art do on basis of the present utility model, replacement or modification all belong to protection range of the present utility model.
Claims (4)
1. the charged access device of a Mobile energy storage system grid connection 10kV circuit, it is characterized in that: 10kV circuit energy-storage system access point is provided with the charged access device of energy-storage system, in described energy-storage system charged access device series connection access 10kV circuit, the charged access device of described energy-storage system is by the vacuum circuit-breaker with isolating switch, isolating switch, step transformer, high-tension switch cabinet, voltage transformer, current transformer and lightning arrester composition, vacuum circuit-breaker and the isolating switch of described band isolating switch are equipped with, described step transformer, high-tension switch cabinet, voltage transformer, current transformer, lightning arrester and energy-storage system combine and arrange.
2. the charged access device of a kind of Mobile energy storage system grid connection 10kV circuit according to claim 1, it is characterized in that: the vacuum circuit-breaker of described band isolating switch comprises the first vacuum circuit-breaker and the second vacuum circuit-breaker, described first vacuum circuit-breaker is connected on bus bar side and the negative wire side of 10kV circuit, described second vacuum circuit-breaker is connected on 10kV line bus side, and described isolating switch is connected on 10kV circuit negative wire side.
3. the charged access device of a kind of Mobile energy storage system grid connection 10kV circuit according to claim 2, it is characterized in that: described second vacuum circuit-breaker is connected to lightning arrester and current transformer, described isolating switch is connected to voltage transformer, described current transformer and voltage transformer are connected to high-tension switch cabinet, described high-tension switch cabinet is connected to step transformer, and described step transformer is connected to energy-storage system.
4. the charged access device of a kind of Mobile energy storage system grid connection 10kV circuit according to claim 1, is characterized in that: described energy-storage system is made up of energy-storage battery, energy storage two way convertor, energy storage supervising device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520709232.4U CN204905886U (en) | 2015-09-14 | 2015-09-14 | Be incorporated into power networks electrified access device of 10kV circuit of portable energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520709232.4U CN204905886U (en) | 2015-09-14 | 2015-09-14 | Be incorporated into power networks electrified access device of 10kV circuit of portable energy storage system |
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| Publication Number | Publication Date |
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| CN204905886U true CN204905886U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520709232.4U Withdrawn - After Issue CN204905886U (en) | 2015-09-14 | 2015-09-14 | Be incorporated into power networks electrified access device of 10kV circuit of portable energy storage system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106998099A (en) * | 2017-02-27 | 2017-08-01 | 国网福建省电力有限公司 | Mobile energy storage for power supply system access withdrawal control method in the case of uninterrupted power supply |
-
2015
- 2015-09-14 CN CN201520709232.4U patent/CN204905886U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106998099A (en) * | 2017-02-27 | 2017-08-01 | 国网福建省电力有限公司 | Mobile energy storage for power supply system access withdrawal control method in the case of uninterrupted power supply |
| CN106998099B (en) * | 2017-02-27 | 2020-03-27 | 国网福建省电力有限公司 | Mobile energy storage power supply system access and exit control method under uninterrupted power supply condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Aikui Inventor after: Wang Wei Inventor after: Liu Fei Inventor after: Jiang Guoyi Inventor after: Liu Haibo Inventor after: Xiao Bing Inventor after: Yuan Xiaodong Inventor before: Li Aikui Inventor before: Wang Wei Inventor before: Liu Fei Inventor before: Jiang Guoyi Inventor before: Liu Haibo Inventor before: Xiao Bing |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160622 Address after: 430074 Hubei city of Wuhan province Wuchang Luo Yu Road, No. 143 Patentee after: Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute Patentee after: STATE GRID INNER MONGOLIA EASTERN POWER CO., LTD. Patentee after: Electric Power Research Institute of Jiangsu Electric Power Company Address before: 430074 Hubei Province, Wuhan city Hongshan District Luoyu Road No. 143 Patentee before: Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute Patentee before: STATE GRID INNER MONGOLIA EASTERN POWER CO., LTD. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20151223 Effective date of abandoning: 20190129 |
|
| AV01 | Patent right actively abandoned |