CN203984099U - A kind of mixed type energy-storage system - Google Patents
A kind of mixed type energy-storage system Download PDFInfo
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- CN203984099U CN203984099U CN201420174303.0U CN201420174303U CN203984099U CN 203984099 U CN203984099 U CN 203984099U CN 201420174303 U CN201420174303 U CN 201420174303U CN 203984099 U CN203984099 U CN 203984099U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 103
- 238000004891 communication Methods 0.000 claims abstract description 26
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052802 copper Inorganic materials 0.000 claims abstract description 16
- 239000010949 copper Substances 0.000 claims abstract description 16
- 230000005611 electricity Effects 0.000 claims abstract description 7
- 239000003990 capacitor Substances 0.000 claims description 14
- QSNQXZYQEIKDPU-UHFFFAOYSA-N [Li].[Fe] Chemical compound [Li].[Fe] QSNQXZYQEIKDPU-UHFFFAOYSA-N 0.000 claims description 10
- 238000013481 data capture Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- HBVFXTAPOLSOPB-UHFFFAOYSA-N nickel vanadium Chemical compound [V].[Ni] HBVFXTAPOLSOPB-UHFFFAOYSA-N 0.000 claims description 2
- 238000007726 management method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 230000001052 transient effect Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a kind of energy-storage system, refers in particular to mixed type energy-storage system.Energy-storage system comprises two-way inversion system, two-way DC/DC system and AC-battery power source, and AC-battery power source comprises power-type energy-storage system and energy type energy-storage system; The external communication interface of two-way inversion system connects the communication apparatus of external electrical network, and intercommunication interface connects the battery management system of two-way DC/DC system and AC-battery power source; Two-way inversion system adopts copper cash to be connected with external electrical network, and inside is also to adopt copper cash to be connected with two-way DC/DC; Two-way DC/DC is connected with energy type energy-storage system with power-type energy-storage system respectively with relay by copper cash.This mixed type energy-storage system is mainly to guarantee power supply quality, and the fast power that switches moment as voltage compensation, microgrid compensates; Improve the grid-connected performance of generation of electricity by new energy, as stabilize the intermittence that wind-force, photovoltaic are exerted oneself; Improve the energy-optimised management of efficiency of energy utilization.
Description
Technical field
The utility model relates to a kind of energy-storage system, refers in particular to mixed type energy-storage system.
Background technology
Obama proposes " electrical network 2.0 " concept, the U.S.'s start to upgrade old-fashioned electrical network apply for that Patents is up to a hundred; Japan, after nuclear power crisis, starts distributed power generation and energy storage comprehensively, and relevant departments have dropped into over ten billion nursery finance; Domestic 12 planning intelligent grid and generation of electricity by new energy as national strategy developing goal.
Micro-electrical network refers to by distributed power source, energy storage device, energy converter, relevant load and monitoring, protective device and collects the small-sized electric system of being transported to forming; be one and can realize the autonomous system that oneself controls, protects and manage; both can be incorporated into the power networks with large electrical network; also can isolated operation, and can between two kinds of operational modes, switch by solid-state switch.
Basic demand to power system stability while keeping meritorious, reactive power equilibrium, to microgrid, be also like this, but the intermittence and the fluctuation feature that have due to distributed power source, and the variation of load also has randomness, brings challenges to the stable operation of micro-electrical network.By effective energy storage technology, can address this problem well, the state of energy storage management system monitoring distributed power source, understand also exerting oneself of prediction distribution formula power supply, regulate energy-storage system operating state with holding power balance, reduce a series of harmful effects that distributed power source produces electrical network.When piconet island moves, energy-storage system can be stabilized power fluctuation, keep frequency of supply stable, and when microgrid builtin voltage fluctuates, energy-storage system can provide reactive power compensation, keeps voltage stabilization, improves the quality of power supply in microgrid.In addition, microgrid, when grid-connected and two kinds of working mode change of isolated island, often has certain power shortage, is now arranged on the just smooth transition of energy assurance system under these two kinds of patterns of energy storage device in microgrid, guarantees the stable of system.Therefore, energy storage technology plays an important role for the safe and stable operation, the raising renewable energy utilization efficiency that realize microgrid, and energy storage technology becomes one of microgrid core technology.
Micro-electrical network comprises the requirement of energy storage device: (1) guarantees power supply quality, and the fast power that switches moment as voltage compensation, microgrid compensates; (2) ensure power supply reliability, as provided stabilized power supply at piconet island run duration; (3) improve the grid-connected performance of generation of electricity by new energy, as stabilize the intermittence that wind-force, photovoltaic are exerted oneself; (4) improve the energy-optimised management of efficiency of energy utilization, store as in the night unnecessary electric energy.In present stage micro-electrical network, available energy storage device mainly comprises lead acid accumulator, vanadium cell, compressed-air energy storage, lithium iron battery energy storage, flywheel energy storage, superconducting energy storage, super capacitor energy-storage.
Summary of the invention
The purpose of this utility model is: single energy storage pattern or to be that power-type energy-storage system has the time of discharging and recharging fast in the past, but the low shortcoming of storage power; Energy type energy-storage system storage power is high, but can not discharge in time, meets the power supply of critical loads.Mixed type energy-storage system combines the advantage of energy type and power-type energy storage, realize and having complementary advantages, microgrid Steady state and transient state process is regulated to control, two-way inversion system comprises two-way inverter and central control unit, data collecting card in central control unit collects voltage, current data, and data operation is processed integrated card and carried out arithmetic logic judgement, industrial IO module controls relay closes and disconnection, allocate dissimilar energy-storage system and discharge and recharge, as Fig. 1 fundamental diagram; For giving full play to the advantages characteristic of two kinds of energy storage devices, be mainly super capacitor as one-level energy storage device, corresponding to the momentary fluctuation of DC bus-bar voltage; Lithium iron battery is corresponding to the power-balance between generating in long-time and load, as secondary energy storage device; Adopt the separated DC bus-bar voltage of filter, high fdrequency component is wherein controlled for super capacitor, and low frequency component is for the control of lithium iron battery; During for DC bus-bar voltage big ups and downs, enable super capacitor and compensate, general energy compensating adopts lithium iron battery to compensate.
A mixed energy storage system that comprises power-type energy storage and energy type energy storage, this energy-storage system comprises two-way inversion system, two-way DC/DC system and AC-battery power source, AC-battery power source comprises power-type energy-storage system and energy type energy-storage system.
Two-way inversion system comprises two-way inverter (PCS) and central control unit, and central control unit is processed integrated card, industrial IO module and communication chip by data collecting card, data operation and formed; Data collecting card, can image data; Industry IO module can control relay; Data operation is processed integrated card can carry out computing, judgement; The external communication interface of communication chip is MCP2510, the intercommunication interface of communication chip is RS485 interface, communication chip connects the communication apparatus of external electrical network by MCP2510 communication mode, by RS485 communication mode, control two-way DC/DC system and AC-battery power source is power-type energy-storage system and energy type energy-storage system battery management system separately.
Two-way inversion system adopts 16mm
2copper cash is connected with external electrical network, and inside is also to adopt 16mm
2copper cash is connected with two-way DC/DC; Two-way DC/DC passes through 16mm
2copper cash is connected with energy type energy-storage system with power-type energy-storage system respectively with relay.
Two-way DC/DC system both can be transformed into the lower direct current of voltage the higher direct current of the voltage of the two-way inverter in outside and be stored into energy-storage system, the direct current of the low pressure of energy-storage system can be transformed into the voltage device that high voltage direct current outputs to two-way inverter again, two-way DC/DC system and energy storage device connecting circuit adopt 16mm
2copper cash connects, and uses RS485 communication mode controlled by central control unit
Power-type energy-storage system refers to the energy storage device with fast charging and discharging ability, comprises management system (BMS) and storage capacitor, and storage capacitor is to be formed by connecting through series and parallel connections by monomer electric capacity; Pass through 16mm
2copper cash is connected with two-way DC/DC system; BMS is used RS485 communication mode controlled by central control unit, and power-type energy-storage system is super capacitor or superconducting magnetic energy storage, and the momentary fluctuation of major function DC bus-bar voltage, separated DC bus high fdrequency component are controlled, voltage big ups and downs compensate; Energy-storage system has battery management system, and integrated data capture card can gather the data that comprise voltage and temperature.
Energy type energy-storage system refers to the energy storage device with large capacity, long service life, comprises management system (BMS) and energy-storage battery, and energy-storage battery is to be formed by connecting through series and parallel connections by cell; Pass through 16mm
2copper cash is connected with two-way DC/DC system; BMS is used RS485 communication controlled by central control unit, and energy type energy-storage system is lead-acid battery, lithium iron battery or nickel vanadium cell; The long-time interior generating of major function is controlled with power-balance, separated DC bus low frequency component between load, general energy compensating, and energy-storage system has battery management system, and integrated data capture card can gather the data that comprise voltage and temperature.
Critical piece buying producer and model:
Two-way inversion system: Jiangsu Hainan Airlines electrical equipment, model: HHPV2000;
Two-way DC/DC producer: Ao Si source, Beijing, model: DC3-480V;
Charging policy control: two-way inversion system charges by central control unit and Control; During charging, when battery management system (BMS) collects monomer voltage or total voltage and surpasses threshold value, send warning and information to the data collecting card of central control unit, data collecting card notification data calculation process integrated card carries out computing, judgement, and notice disconnects relay and stops charging.
Electric discharge policy control: two-way inversion system discharges by central control unit and Control; During electric discharge, when BMS collects monomer voltage or total voltage lower than threshold value, send report to the police and information to the data collecting card of data central control unit, data collecting card notification data calculation process integrated card carries out computing, judgement, notice disconnects relay and stops discharging.
The mixed energy storage system course of work, as shown in Figure 2, when the violent lifting of outer net voltage causes electrical network non-sinusoidal waveform or billow, the data collecting card of central control unit collects voltage, current data is abnormal, data operation is processed integrated card computing and is judged immediately, select different energy storage patterns to discharge, if instantaneous, transient state, the sight of high frequency, the electric discharge of will working of power-type energy-storage system, by two-way DC/DC conversion, by DC low-voltage, be transformed into high direct voltage, by two-way inversion system, by direct current, become and exchange to external power grid again, regulate and control the instantaneous of outer net, transient state, the fluctuation of high frequency, if when long, sight stable state, low frequency, the electric discharge of will working of accumulation energy type energy-storage system, by two-way DC/DC conversion, by DC low-voltage, be transformed into high direct voltage, by two-way inversion system, by direct current, become to be exchanged to external power grid again while regulating control outer net long, fluctuation stable state, low frequency.
When external power grid is working properly, external power grid will be full of electricity to mixed energy storage system, in case of need.
Accompanying drawing explanation
Fig. 1 is mixed energy storage system fundamental diagram.
Fig. 2 is the block diagram of mixed energy storage system.
Fig. 3 is super capacitor and lithium iron battery system block diagram.
Embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
Case study on implementation
Mixed energy storage system comprises two-way inversion system, two-way DC/DC system, super capacitor energy-storage system, lithium iron battery energy-storage system.
The mixed energy storage system course of work, as shown in Figure 3, when the violent lifting of outer net voltage causes electrical network non-sinusoidal waveform or billow, central control unit multifunctional data acquisition card in two-way inversion system can detect voltage signal sudden change, data operation is processed integrated card and is judged immediately, select different energy storage patterns to discharge, if sight instantaneous, transient state, high frequency, the industrial IO module controls of central control unit connects the cut-off of power-type energy-storage system, the super capacitor electric discharge of starting working; By two-way DC/DC conversion, by DC low-voltage, be transformed into high direct voltage, by two-way inversion system, by direct current, becoming and exchanging to external power grid, regulate the fluctuation of instantaneous, transient state, the high frequency of control outer net; If when long, sight stable state, low frequency, central control unit industry IO module controls connects the cut-off of accumulation energy type energy-storage system, iron lithium energy-storage system work electric discharge, by two-way DC/DC conversion, by DC low-voltage, be transformed into high direct voltage, by two-way inversion system, by direct current, become to be exchanged to external power grid while regulating control outer net long, fluctuation stable state, low frequency.
When outer net is normally worked, outer net changes into high voltage direct current by inversion, high voltage direct current becomes low-voltage direct by DC/DC, first to super capacitor, be full of electricity, be full of electricity to again iron lithium energy-storage system, when the capture card in energy-storage system collects cell voltage and surpasses the threshold value of rated voltage, will tell the industrial IO module of central control unit, module controls relay disconnects and stops charging.
Claims (2)
1. a mixed type energy-storage system, is characterized in that: described energy-storage system comprises two-way inversion system, two-way
DC/DC system and AC-battery power source, AC-battery power source comprises power-type energy-storage system and energy type energy-storage system; The external communication interface of two-way inversion system connects the communication apparatus of external electrical network, and intercommunication interface connects the battery management system of two-way DC/DC system and AC-battery power source; Two-way inversion system adopts copper cash to be connected with external electrical network, and inside is also to adopt copper cash to be connected with two-way DC/DC; Two-way DC/DC is connected with energy type energy-storage system with power-type energy-storage system respectively with relay by copper cash;
Two-way inversion system both can be transformed into direct current external communication electricity and be stored into energy-storage system, the direct current of energy-storage system can be transformed into alternating current again and output to external electrical network; Two-way inversion system comprises two-way inverter (PCS) and central control unit, and central control unit is processed integrated card, industrial IO module and communication chip by data collecting card, data operation and formed; Data collecting card, can image data; Industry IO module can control relay; Data operation is processed integrated card can carry out computing, judgement; The external communication interface of communication chip is MCP2510, the intercommunication interface of communication chip is RS485 interface, communication chip connects the communication apparatus of external electrical network by MCP2510 communication mode, by RS485 communication mode, control two-way DC/DC system and AC-battery power source is power-type energy-storage system and energy type energy-storage system battery management system separately
Two-way DC/DC system can be transformed into the direct current that voltage is lower the higher direct current of the voltage of the two-way inverter in outside and be stored into energy-storage system, the direct current of the low pressure of energy-storage system can be transformed into the voltage device that high voltage direct current outputs to two-way inverter again;
Power-type energy-storage system refers to the energy storage device with fast charging and discharging ability, comprises management system (BMS) and storage capacitor, and storage capacitor is to be formed by connecting through series and parallel connections by monomer electric capacity; Pass through 16mm
2copper cash is connected with two-way DC/DC system; BMS is used RS485 communication mode controlled by central control unit, and power-type energy-storage system is super capacitor or superconducting magnetic energy storage, and the momentary fluctuation of major function DC bus-bar voltage, separated DC bus high fdrequency component are controlled, voltage big ups and downs compensate; Energy-storage system has battery management system, and integrated data capture card can gather the data that comprise voltage and temperature;
Energy type energy-storage system refers to the energy storage device with large capacity, long service life, comprises management system (BMS) and energy-storage battery, and energy-storage battery is to be formed by connecting through series and parallel connections by cell; Pass through 16mm
2copper cash is connected with two-way DC/DC system; BMS is used RS485 communication controlled by central control unit, and energy type energy-storage system is lead-acid battery, lithium iron battery or nickel vanadium cell; The long-time interior generating of major function is controlled with power-balance, separated DC bus low frequency component between load, general energy compensating, and energy-storage system has battery management system, and integrated data capture card can gather the data that comprise voltage and temperature.
2. a kind of mixed type energy-storage system as claimed in claim 1, is characterized in that: described copper cash is 16mm
2copper cash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420174303.0U CN203984099U (en) | 2014-04-11 | 2014-04-11 | A kind of mixed type energy-storage system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420174303.0U CN203984099U (en) | 2014-04-11 | 2014-04-11 | A kind of mixed type energy-storage system |
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| CN203984099U true CN203984099U (en) | 2014-12-03 |
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| CN201420174303.0U Expired - Lifetime CN203984099U (en) | 2014-04-11 | 2014-04-11 | A kind of mixed type energy-storage system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515209A (en) * | 2016-01-28 | 2016-04-20 | 山东鲁能智能技术有限公司 | Microgrid hybrid energy storage system and control method thereof |
| CN105756559A (en) * | 2016-04-25 | 2016-07-13 | 奥铄动力科技（北京）有限公司 | Flywheel energy storage type electrically driven well repair/well drilling device and power providing method thereof |
-
2014
- 2014-04-11 CN CN201420174303.0U patent/CN203984099U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515209A (en) * | 2016-01-28 | 2016-04-20 | 山东鲁能智能技术有限公司 | Microgrid hybrid energy storage system and control method thereof |
| CN105515209B (en) * | 2016-01-28 | 2017-09-22 | 山东鲁能智能技术有限公司 | A kind of micro-capacitance sensor mixed energy storage system and its control method |
| CN105756559A (en) * | 2016-04-25 | 2016-07-13 | 奥铄动力科技（北京）有限公司 | Flywheel energy storage type electrically driven well repair/well drilling device and power providing method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170510 Address after: High Dian Lu Huli District of Xiamen city in Fujian province 361000 10 C105 unit Patentee after: XIAMEN GAORONG NEW ENERGY TECHNOLOGY CO.,LTD. Address before: 212000 Zhenjiang city of Jiangsu province science and Technology Park Building No. C25 Dingmao Patentee before: JIANGSU FGY ENERGY STORAGE RESEARCH INSTITUTE Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141203 |