CN205335865U - Intelligent box transformer of integration is joined in marriage in storage - Google Patents
Intelligent box transformer of integration is joined in marriage in storage Download PDFInfo
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- CN205335865U CN205335865U CN201620056833.4U CN201620056833U CN205335865U CN 205335865 U CN205335865 U CN 205335865U CN 201620056833 U CN201620056833 U CN 201620056833U CN 205335865 U CN205335865 U CN 205335865U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The utility model discloses an intelligent box transformer of integration is joined in marriage in storage, it has assembleed other crucial primary equipment that include equipment and energy storage arrays such as belonging to block terminal partly main transformer, main circuit breaker and electrical quantities measurement device originally and hand over the required inverter unit of flow net feed to 400V in a multicompartmented container based on 10kV400V distribution transformer, the secondary equipment who is used for controlling above -mentioned primary equipment has still been integrated to while, includes energy management system industrial computer, battery management system etc. Supports to carry out work according to " the miniature distribution network control method of integrative design is joined in marriage in the storage " and the method of deriving, and its secondary equipment still downwardly extending can observe and control interior all the adjustable loads of microgrid, has the ability that the conventional load is cut -off to intelligence. The utility model discloses be favorable to centralized management, maintenance and accuse temperature crucial one, secondary equipment, simplify and store up the operation and maintenance management who joins in marriage integrative design microgrid and reduce the dispersion and maintain the cost that brings, improvement microgrid reliability of operation.
Description
Technical field
This utility model relates to a kind of box type transformer, is specifically related to a kind of storage and joins the box transformator of integral intelligent。
Background technology
Conventional below 10kV Terminal Power Distribution System adopts passive power adjustments pattern, and feed power is determined by actual load demand, but not permissible load demand of any moment is beyond connected distribution transformer capacity。Capacity limit all follows strictly in power distribution networks at different levels and configures corresponding protection, if terminal power distribution net needs general dilatation because of reasons such as electric automobile accesses on a large scale, existing power distribution networks at different levels are both needed to large area transformation, and cost is high。
On the other hand, load peak-valley difference increases year by year, and power distribution network capacity practical efficiency is but declining。By introducing distributed energy storage capacity at terminal power distribution net, the dynamic compatibilization in short-term of peak period terminal power distribution transformator can be realized, it is achieved peak load shifting, be effectively increased the utilization rate of the existing capacity of power distribution network, delay the capacity-increasing transformation of existing distribution facility, reduce the capacity investment of newly-built distribution facility。
Transformator is implemented dynamic compatibilization need to implement according to " Integral design Miniature power grid control method is joined in storage " and deriving method thereof。The method requires according to microgrid status, to possessing the controllable pairs such as the inversion of control condition, energy storage, load as implementing to be uniformly controlled, purpose is to be satisfied under premise in the key safety constraint ensureing transformator, energy storage etc., thering is provided reliable power supply service for the workload demand beyond transformer capacity, it is realized by power distribution network EMS (EMS)。The method requires to couple together conventional box type transformer and new primary equipment such as power regulating system (PCS), energy storage array based on various battery technologies, also need the electrical secondary system such as Power measurement unit of reorganization and expansion routine box type transformer simultaneously, power distribution network EMS industrial computer transformator, PCS, energy storage, load are implemented unified regulation and control。Therefore, the primary system of low-pressure high-power needs to shorten spacing as far as possible to reduce line loss, simultaneously first and second system has the needs of protection against the tide, fire prevention, dust-proof, waterproof, temperature control, places respectively and management adds link, overall complexity and cost, reduces reliability and maintainability。The box transformer technology of tradition is not suitable for being applied to above-mentioned new scene。
Utility model content
In order to solve the problem that existing box type transformer technology is not used to transformator dynamic compatibilization scene, realizes adapting to actively intelligent micro-grid control, this utility model aims to provide a kind of storage and joins the box transformator of integral intelligent so that it is as the key component realizing actively intelligent micro-grid。
For reaching above-mentioned technical purpose and effect, this utility model is achieved through the following technical solutions:
The box transformator of integral intelligent is joined in a kind of storage, including a multi-compartment container, is provided with primary equipment and for controlling the secondary device of described primary equipment in described multi-compartment container；Described primary equipment includes energy storage array, inversion unit, main circuit breaker, transformator, the first electrical quantity measurement means and the second electrical quantity measurement means；Described secondary device includes EMS industrial computer and battery management system；
The 10kV AC network being positioned at outside described multi-compartment container is accessed, by the first switch, in one end of described transformator, and the other end of described transformator accesses the 400V AC network being positioned at outside described multi-compartment container by described main circuit breaker；Described first electrical quantity measurement means is arranged between described transformator and described first switch, described second electrical quantity measurement means is arranged between described main circuit breaker and described 400V AC network, and described first electrical quantity measurement means, described second electrical quantity measurement means are kept in communication with described EMS industrial computer respectively and be connected；Described energy storage array feeds to described 400V AC network through described inversion unit, and described energy storage array is kept in communication with described EMS industrial computer through described battery management system and is connected；Described EMS industrial computer also directly keeps being connected for the communication transmitting regulation and controlling of information and instruction with described main circuit breaker and described inversion unit respectively, is used for assigning control command to described main circuit breaker and described inversion unit；
Described 10kV AC network is connected with a series of outer network sources, from described outer network source by electricity；Described 400V AC network is subject to electricity from described transformator and described inversion unit, and respectively to a series of conventional loads, emergent load and scalable load feed；It is provided with second switch between described conventional load and described 400V AC network, being provided with the 3rd switch between described scalable load and described 400V AC network, described EMS industrial computer keeps being connected for the communication transmitting regulation and controlling of information and instruction with described second switch, described 3rd switch and described scalable load respectively。
Further, described energy storage array includes but not limited to by lithium battery, super capacitor, vanadium sulfur battery and meets the chargeable array element that the conventional batteries of application is formed。
Further, the control main frame of described EMS industrial computer and operation maintenance personnel is kept in communication by special line and is connected。
Further, described multi-compartment container possesses the function of overall moistureproof, fire prevention, dust-proof, cell compartments waterproof, temperature control。
Further, described storage join the box transformator of integral intelligent needed for from electricity consumption by access described 400V AC network power distribution cabinet provide。
Operation principle of the present utility model is as follows:
1, by described EMS industrial computer measuring transformer low side power, in electrical network normal power supply situation, described EMS industrial computer controls inversion unit (below the main body of this control being called PCS), works according to power adjustments (P/Q) pattern；If energy storage array SOC is between its Minimum Acceptable Value and threshold limit value, and transformer load rate (ratio of transformator measured power and its rated capacity) exceedes " transformator high power levels ", PCS works as the electric discharge of target control energy storage array to maintain transformator below this power limit。
2, when transformer load rate is between " transformator lower power levels " and " transformator high power levels ", energy storage array does not charge and does not discharge yet；When transformer load rate is lower than " transformator lower power levels ", transformator should be maintained " transformator lower power levels " by PCS as far as possible: if PCS Operation at full power in a charge mode, and power load is really inadequate, then maintain charging Operation at full power, until transformer load rate turns again to more than " transformator lower power levels "。
3, each scalable load is controlled it by EMS industrial computer and use electricity condition, and reflect that it cut-offs state and electricity consumption situation in controlling main frame；If energy storage SOC is lower than Minimum Acceptable Value, reducing the power of part or all of scalable load until excising whole scalable load, making energy storage SOC no longer decline；Until energy storage SOC returns to higher than a given level Δ SOC on Minimum Acceptable Value, just again put into scalable load or the electric power of scalable load is returned to nominal。
4, when total system is incorporated into the power networks: when energy storage array SOC is less than Minimum Acceptable Value, energy-storage system no longer discharges；When energy storage array SOC is more than threshold limit value, energy-storage system does not recharge。When discharge and recharge cannot continue to run by current power because of the restriction of SOC scope, PCS charge-discharge electric power should be made progressively to be adjusted 0 by current power, it is to avoid because load impact causes the transient swing of frequency, voltage。
5, in total system off-network is run, if the unexpected power-off of electrical network being detected, PCS, energy storage array and scalable load automatically will excise from electrical network, and forbid that scalable load uses in off-network operation overall process；Should be given notice to operation maintenance personnel by control main frame after excision；As operation maintenance personnel wishes that energy-storage system continues to power to emergent load, then need to first pass through EMS control main circuit breaker disconnection and prevent down power transmission, disconnect the killer switch of whole non-emergency load, then pass through EMS industrial computer and regulate (V/F) pattern startup PCS with electric voltage frequency, recover energy storage array and power to 400V AC network。When energy storage SOC is less than Minimum Acceptable Value, PCS is automatically switched off, out of service。
6, in total system off-network is run, and when detecting that power system restoration is powered by the first electrical quantity measurement means, if now PCS operates in V/F pattern and powers to emergent load, then operation maintenance personnel receives notice from controlling main frame；As operation maintenance personnel wishes that recovery is incorporated into the power networks, should first passing through control main frame, close PCS through EMS industrial computer, then Guan Bi main circuit breaker switch, starts PCS with P/Q pattern, makes microgrid return to grid-connected mode of operation。Should including frequency measuring equipment in first electrical quantity measurement means, this device sends voltage and phase signal to PCS, and when power system restoration is powered, PCS output voltage is automatically and synchronized。
Compared with prior art, the beneficial effects of the utility model are:
1, it is the key component realizing actively intelligent micro-grid that the box transformator of integral intelligent is joined in storage of the present utility model, by in " Integral design Miniature power grid control method is joined in storage " and deriving method enforcement thereof necessary each one, key equipment in electrical secondary system is incorporated in a multi-compartment container, high reliability is created for " Integral design Miniature power grid control method is joined in storage " and deriving method thereof, high maintainable implementation environment, be conducive to crucial one, the centralized management of secondary device, safeguard and temperature control, simplify storage and join the operation management of Integral design microgrid, improve microgrid reliability of operation；
2, control principle of the present utility model makes microgrid can migrate between various working, automatically keeps the balance of generating electric power, improves the quality of power supply, meet safety utilization of electric power requirement；
3, when configuring power and the sufficiently large energy storage array of capacity, raising Miniature electrical network that can be proportional holds the ability increasing load newly, allow that net internal loading capacity is maximum more than transformator passes through capacity, microgrid increase-volume is made not affected by initially planned transformer capacity, it is greatly saved distribution investment for trnasforming urban land, after evading increase load, persistently beyond the risk of transformer capacity during peak of power consumption, and guarantee the control security of dynamic compatibilization。
4, supports load of meeting an urgent need when grid power blackout or energy storage low electricity power to the part scalable load intelligent power control measures such as power by suspending, improve microgrid power supply reliability。
Described above is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be practiced according to the content of description, below with preferred embodiment of the present utility model and coordinate accompanying drawing describe in detail as after。Detailed description of the invention of the present utility model is shown in detail in by following example and accompanying drawing thereof。
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes the part of the application, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model。In the accompanying drawings:
Fig. 1 is structural representation of the present utility model。
Number in the figure illustrates: 1, multi-compartment container；2, energy storage array；3, inversion unit；4, main circuit breaker；5, transformator；6, the first electrical quantity measurement means；7, the second electrical quantity measurement means；8, EMS industrial computer；9, battery management system；10, the first switch；11,10kV AC network；12,400V AC network；13, outer network source；14, second switch；15, the 3rd switch；16, conventional load；17, scalable load；18, main frame is controlled；19, emergent load。
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, this utility model is described in detail。
Shown in Figure 1, the box transformator of integral intelligent is joined in a kind of storage, including a multi-compartment container 1, is provided with primary equipment and for controlling the secondary device of described primary equipment in described multi-compartment container 1；Described primary equipment includes energy storage array 2, inversion unit 3, main circuit breaker 4, transformator the 5, first electrical quantity measurement means 6 and the second electrical quantity measurement means 7；Described secondary device includes EMS industrial computer 8 and battery management system 9；
One end of described transformator 5 is positioned at the 10kV AC network 11 outside described multi-compartment container 1 by the first switch 10 access, and the other end of described transformator 5 accesses the 400V AC network 12 being positioned at outside described multi-compartment container 1 by described main circuit breaker 4；Described first electrical quantity measurement means 6 is arranged between described transformator 5 and described first switch 10, described second electrical quantity measurement means 7 is arranged between described main circuit breaker 4 and described 400V AC network 12, and described first electrical quantity measurement means 6, described second electrical quantity measurement means 7 keep with described EMS industrial computer 8 being connected for the communication transmitting regulation and controlling of information and instruction respectively；Described energy storage array 2 feeds to described 400V AC network 12 through described inversion unit 3, and described energy storage array 2 keeps being connected for the communication transmitting regulation and controlling of information and instruction with described EMS industrial computer 8 through described battery management system 9；Described EMS industrial computer 8 also directly keeps being connected for the communication transmitting regulation and controlling of information and instruction with described main circuit breaker 4 and described inversion unit 3 respectively, is used for assigning control command to described main circuit breaker 4 and described inversion unit 3；
Described 10kV AC network 11 is connected with a series of outer network sources 13, from described outer network source 13 by electricity；Described 400V AC network 12 is subject to electricity from described transformator 5 and described inversion unit 3, and feeds to a series of conventional loads 16, emergent load 19 and scalable load 17 respectively；It is provided with second switch 14 between described conventional load 16 and described 400V AC network 12, being provided with the 3rd switch 15 between described scalable load 17 and described 400V AC network 12, described EMS industrial computer 8 keeps being connected for the communication transmitting regulation and controlling of information and instruction with described second switch 14, described 3rd switch 15 and described scalable load 17 respectively。
Further, described energy storage array 2 includes but not limited to by lithium battery, super capacitor, vanadium sulfur battery and meets the chargeable array element that the conventional batteries of application is formed。
Further, the control main frame 18 of described EMS industrial computer 8 and operation maintenance personnel is kept in communication by special line and is connected。
Further, described multi-compartment container 1 possesses the function of overall moistureproof, fire prevention, dust-proof, cell compartments waterproof, temperature control。
Further, described storage join the box transformator of integral intelligent needed for from electricity consumption by access described 400V AC network 12 power distribution cabinet provide。
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations。All within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model。
Claims (5)
1. the box transformator of integral intelligent is joined in a storage, it is characterised in that: include a multi-compartment container (1), be provided with primary equipment in described multi-compartment container (1) and for controlling the secondary device of described primary equipment；Described primary equipment includes energy storage array (2), inversion unit (3), main circuit breaker (4), transformator (5), the first electrical quantity measurement means (6) and the second electrical quantity measurement means (7)；Described secondary device includes EMS industrial computer (8) and battery management system (9)；
One end of described transformator (5) is accessed by the first switch (10) and is positioned at the 10kV AC network (11) that described multi-compartment container (1) is outside, and the other end of described transformator (5) is accessed by described main circuit breaker (4) and is positioned at the 400V AC network (12) that described multi-compartment container (1) is outside；Described first electrical quantity measurement means (6) is arranged between described transformator (5) and described first switch (10), described second electrical quantity measurement means (7) is arranged between described main circuit breaker (4) and described 400V AC network (12), and described first electrical quantity measurement means (6), described second electrical quantity measurement means (7) keep with described EMS industrial computer (8) being connected for the communication transmitting regulation and controlling of information and instruction respectively；Described energy storage array (2) feeds to described 400V AC network (12) through described inversion unit (3), and described energy storage array (2) keeps being connected for the communication transmitting regulation and controlling of information and instruction with described EMS industrial computer (8) through described battery management system (9)；Described EMS industrial computer (8) also directly keeps being connected for the communication transmitting regulation and controlling of information and instruction with described main circuit breaker (4) and described inversion unit (3) respectively, is used for assigning control command to described main circuit breaker (4) and described inversion unit (3)；
Described 10kV AC network (11) is connected with a series of outer network sources (13), from described outer network source (13) by electricity；Described 400V AC network (12) is subject to electricity from described transformator (5) and described inversion unit (3), and respectively to a series of conventional loads (16), emergent load (19) and scalable load (17) feed；Second switch (14) it is provided with between described conventional load (16) and described 400V AC network (12), being provided with the 3rd switch (15) between described scalable load (17) and described 400V AC network (12), described EMS industrial computer (8) keeps being connected for the communication transmitting regulation and controlling of information and instruction with described second switch (14), described 3rd switch (15) and described scalable load (17) respectively。
2. the box transformator of integral intelligent is joined in storage according to claim 1, it is characterised in that: described energy storage array (2) includes but not limited to by lithium battery, super capacitor, vanadium sulfur battery and meets the chargeable array element that the conventional batteries of application is formed。
3. the box transformator of integral intelligent is joined in storage according to claim 1, it is characterised in that: the control main frame (18) of described EMS industrial computer (8) and operation maintenance personnel is kept in communication by special line and is connected。
4. the box transformator of integral intelligent is joined in storage according to claim 1, it is characterised in that: described multi-compartment container (1) possesses the function of overall moistureproof, fire prevention, dust-proof, cell compartments waterproof, temperature control。
5. the box transformator of integral intelligent is joined in storage according to claim 1, it is characterised in that: described storage join the box transformator of integral intelligent needed for from electricity consumption by access described 400V AC network (12) power distribution cabinet provide。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201620056833.4U CN205335865U (en) | 2016-01-21 | 2016-01-21 | Intelligent box transformer of integration is joined in marriage in storage |
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| CN201620056833.4U CN205335865U (en) | 2016-01-21 | 2016-01-21 | Intelligent box transformer of integration is joined in marriage in storage |
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| CN205335865U true CN205335865U (en) | 2016-06-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116826795A (en) * | 2023-06-01 | 2023-09-29 | 中能建储能科技(武汉)有限公司 | Energy storage power station non-planned island operation load distribution control equipment and method |
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2016
- 2016-01-21 CN CN201620056833.4U patent/CN205335865U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116826795A (en) * | 2023-06-01 | 2023-09-29 | 中能建储能科技(武汉)有限公司 | Energy storage power station non-planned island operation load distribution control equipment and method |
| CN116826795B (en) * | 2023-06-01 | 2024-03-15 | 中能建储能科技(武汉)有限公司 | Energy storage power station non-planned island operation load distribution control equipment and method |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 Termination date: 20220121 |