CN104734322A - Energy storage charging station power supply system for off-grid new energy power generation - Google Patents
Energy storage charging station power supply system for off-grid new energy power generation Download PDFInfo
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- CN104734322A CN104734322A CN201310724588.0A CN201310724588A CN104734322A CN 104734322 A CN104734322 A CN 104734322A CN 201310724588 A CN201310724588 A CN 201310724588A CN 104734322 A CN104734322 A CN 104734322A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 136
- 238000010248 power generation Methods 0.000 title claims abstract description 40
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 70
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 70
- 238000012544 monitoring process Methods 0.000 claims abstract description 49
- 239000003990 capacitor Substances 0.000 claims abstract description 38
- 230000006854 communication Effects 0.000 claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 239000013307 optical fiber Substances 0.000 claims abstract 2
- 230000005611 electricity Effects 0.000 claims description 29
- 238000003860 storage Methods 0.000 claims description 25
- 230000000087 stabilizing effect Effects 0.000 claims description 15
- 238000007726 management method Methods 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000011664 signaling Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 230000008901 benefit Effects 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 230000005693 optoelectronics Effects 0.000 claims description 3
- 230000007812 deficiency Effects 0.000 claims description 2
- 238000007667 floating Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 8
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- SYHGEUNFJIGTRX-UHFFFAOYSA-N methylenedioxypyrovalerone Chemical compound C=1C=C2OCOC2=CC=1C(=O)C(CCC)N1CCCC1 SYHGEUNFJIGTRX-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000012536 storage buffer Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
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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
- 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
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Abstract
The invention provides an energy storage charging station power supply system for off-grid new energy power generation. Solar energy, wind energy and a super capacitor are combined with an energy storage lithium battery pile with high overload capacity to supply energy, energy consumption can be reduced, the environmental pollution pressure is reduced, and the influence of the greenhouse effect on the environment is reduced. According to the energy storage charging station power supply system, various parameters are uploaded to an intelligent local monitoring station through detection, and the stability and safety of power supply are guaranteed through a set control logic priority power supply sequence and protection switching. The local monitoring station and a background monitoring center conduct communication and monitoring through communication media such as remote communication, the Ethernet and optical fibers, the energy storage charging station power supply system can conduct manual control, intelligent control and remote communication remote control over each monitoring unit on the site, various parameters of each monitoring unit can be acquired, and the intelligent switchover is achieved according to the set state. The background monitoring center remotely monitors operating parameters through remote communication, and can control start and stop of energy input and load output, and power supply stability and load safety and reliability are guaranteed.
Description
Technical field
The invention belongs to new forms of energy power system technologies and charging electric vehicle supporting technology field, particularly relate to one and multiple clean energy resource can be utilized to provide power supply off-grid high-power large-scale intelligent powersupply system.
Background technology
Along with the use of expanding economy and electric automobile, the requirement of Electricity customers to electric power system is more and more higher, but the universal utilization of electric automobile can aggravate the contradiction of electrical network electricity using at the peak time; Simultaneously need to set up electric automobile charging station away from the highway of electrical network or suburb, so that it is more universal to make electric automobile use, the disposal of pollutants of more minimizing vehicle exhausts; The new forms of energy energy storage charging station power-supply system of existing a kind of solar power generation, wind power generation can solve above existing problems; The serious dependence of fossil energy can be reduced simultaneously.Along with heliotechnics development, the development of wind energy power technology, super capacitor technology develops, lithium battery technology constantly perfect, a kind of have R&D direction and the target that device of solar generating, wind electricity generating system, energy storage accumulate, direct current drive vehicle charging and intelligent power supply technology are this areas.This technology is capable of reducing energy consumption, reduces environmental pollution pressure, reduces greenhouse effect, utilizes renewable and clean energy resource and intelligence to be that later developing direction and scale use direction from the high-power power supply of net.
Summary of the invention
The invention provides a kind of high-power powersupply system of intelligent energy storage charging station from net generation of electricity by new energy, solar energy equipment generating, wind energy plant generating, super capacitor heap is adopted to provide the energy in conjunction with the energy-storage lithium battery heap that overload capacity is strong, capable of reducing energy consumption, reduce environmental pollution pressure, reduce greenhouse effect to the impact of environment.
The present invention is achieved through the following technical solutions:
From a net new forms of energy energy storage charging station high power electric power supply system, include device of solar generating, super capacitor heap, solar control converting means, wind energy plant, wind energy AC/DC monitoring converting means, wind energy DC/DC voltage stabilizing supervising device, lithium battery energy storage battery heap, lithium battery management system BMS, DC700V DC bus, DC/DC converter, charging device of electric automobile, DC/AC inverter, three-phase alternating-current powered power distribution equipment, local monitor station and remote monitoring center; Described energy storage charging station electric power system can be charging device of electric automobile power and AC load large power supply is provided, described energy storage charging station electric power system has DC700V common DC bus, combining super capacitor heap energy efficient absorption solar power generation electric energy, by normally closed connection lithium battery energy storage battery heap, when switching solar powered and powered by wind energy, ensure direct current drive charging equipment for automobile load and AC load not power-off.It is characterized in that:
Described energy storage charging station includes solar energy equipment and super capacitor heap for system electricity;
Described solar energy equipment for collecting solar energy, and is electric energy by opto-electronic conversion the Conversion of Energy comprised in sunlight;
Described energy storage charging station electric power system includes wind energy plant and super capacitor energy-storage apparatus for temporary storage;
Described wind energy plant is used for the mechanical energy comprised in wind-force to be converted to electric energy;
Described super capacitor heap and super capacitor energy-storage apparatus for temporary storage have low-voltage energy storage, fast charging and discharging, long-life, cycle life can reach the characteristic of more than 500,000 times, match with the characteristic of solar power generation, wind power generation, the electrical power storage of solar energy, wind energy instability, and change into stable power supply supply common DC bus; And give various load supplying by DC bus.
Described common DC bus can improve energy conversion efficiency, reduction manufacturing cost and energy interface, communication interface modulesization assembling, energy interface, communication interface modules dilatation can be reached, described common DC bus can be powered to the load of direct current drive charging equipment for automobile and three-phase alternating current load simultaneously, and to lithium battery energy storage battery heap charge storage electric energy;
Described energy storage charging station high power electric power supply system includes: solar energy MPPT voltage stabilizing monitoring converting means and wind energy AC/DC rectifying and voltage-stabilizing monitoring converting means, described solar energy MPPT voltage stabilizing monitoring converting means setting Protection parameters and unidirectional power supply; Described wind energy AC/DC rectifying and voltage-stabilizing monitoring converting means setting Protection parameters and unidirectional power supply; Described solar energy equipment and wind energy plant carry out Based Intelligent Control switching and management by intelligent local monitor station and pile to lithium battery energy storage battery to direct current drive charging equipment for automobile charge for electric loading and three-phase alternating-current powered load supplying, lithium battery energy storage battery heap keeps electric energy completely to store, ensure when solar energy equipment and wind energy plant cannot be powered, lithium battery energy storage battery heap can be powered separately;
Described energy storage charging station high power electric power supply system includes: DC700V/DC400V converter and DC700V/AC400V inverter, and described DC/DC converter is used for realizing DC bus electricity and is transformed into applicable charging device of electric automobile DC load; Described DC/AC inverter is used for realizing DC bus electricity and converts alternating current supply load to; Described DC/DC converter and inverter are connected on common DC bus and lithium battery energy storage battery heap; When DC load charging device of electric automobile needs electricity consumption, the delivery of electrical energy of common DC bus and lithium battery energy storage battery heap is powered to charging electric vehicle to DC load charging device of electric automobile; When AC load needs electricity consumption, the delivery of electrical energy of common DC bus and lithium battery energy storage battery heap is powered to AC load.
Preferably, the power generation characteristics of the energy storage characteristic of described energy storage charging station electric power system super capacitor heap and solar energy equipment, wind energy plant matches, low-voltage can absorb solar power generation, wind power generation, the electrical power storage of solar energy, wind energy instability is got up, fast charging and discharging, long-life, cycle life can reach more than 500,000 times, super capacitor heap energy storage characteristic and solar energy equipment generates electricity, wind energy plant power generation characteristics combines, the advantage of the maximum performance of energy two kinds of characteristics, play maximal efficiency, reduce operation expense simultaneously;
Preferably, the manufacturing cost of described common DC bus system and device capable of reducing power source and energy interface modularization assembling, can reach energy interface, communication interface modules dilatation, described common DC bus can be powered to load and lithium battery energy storage battery heap charge storage electric energy simultaneously.
Preferably, energy storage charging station electric power system comprises solar energy monitoring unit, wind energy monitoring unit, lithium battery energy storage battery monitoring unit, charging device of electric automobile and AC load monitoring unit, by each detecting unit each parameter uploaded to intelligent local monitor station and switched by the preferential power supply order of the control logic set and protection, ensureing power supply stability and safety; Electric supply system can realize controlling with every road monitoring unit on-site manual, Based Intelligent Control and remote signalling Long-distance Control, can gather the various parameters on every road, and realizes intelligence according to the situation of setting and switch.Background monitoring center is respectively inputted by remote signalling remote detection, export the operational factor of each unit, and what can control that the energy input of each road and each road load export cut-offs simultaneously, ensures the stable safety with load of power supply.
Preferably, local monitor station and remote monitoring center can monitor charging and the safe operation of direct current drive vehicle charging station in real time.
Beneficial effect of the present invention is as follows:
The invention provides a kind of energy storage charging station intelligent high-power powersupply system from net generation of electricity by new energy, because power supply includes solar energy equipment, wind energy plant and super capacitor heap, energy storage device is a kind of lithium battery energy storage battery heap; Intelligent monitoring station is switched by the preferential power supply order of the control logic set and protection simultaneously, ensures power supply stability and safety; Employing solar power generation, wind power generation and lithium battery energy storage battery heap multiple-way supply, utilizes renewable and clean energy resource to pile in conjunction with the super capacitor that overload capacity is strong and energy-storage battery heap carries out energy storage and provides the energy.Tool has the following advantages:
A, saving energy consumption, operating cost is low, energy-conserving and environment-protective.
B, utilize solar power generation, wind power generation, super capacitor high efficiency energy reclaims, and utilizes renewable and clean energy resource.
C, intelligent control system, conversion effect is high.
D, modular construction, save production cost, easily dilatation and maintenance facilitate.
E, employing general DC busbar, energy efficient shifts, and Based Intelligent Control operating cost is low.
F, multiple power supplies input, and lithium battery energy storage battery piles normally closed connection, and power supply safety is reliable.
G, from net independently-powered, save electric grid investment, do not limit by electrical network, reliability is high.
H, employing intelligent automatic control, realize local and remote control, operate steadily, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the energy storage charging station intelligent high-power powersupply system of a kind of generation of electricity by new energy of the present invention;
Fig. 2 is the logic control schematic diagram of the energy storage charging station intelligent high-power electric power system of a kind of generation of electricity by new energy of the present invention;
Fig. 3 is a kind of direct current drive charging equipment for automobile monitoring schematic diagram of the present invention.
Description of reference numerals:
1, solar energy equipment, 2, super capacitor is piled, 3, MPPT voltage stabilizing monitoring converting means, 4, wind energy plant, 5, wind energy AC/DC rectifying and voltage-stabilizing supervising device, 6, super capacitor energy-storage buffer, 7, wind energy DC/DC voltage stabilizing supervising device, 8, DC700V DC bus, 9, lithium battery energy storage battery is piled, 10, battery management BMS, 11, DC700V/DC400V converter, 12, direct current drive charging equipment for automobile, 13, DC/AC inverter, 14, three-phase alternating-current powered device+AC load, 15, local monitor station, 16, remote monitoring center, 17, vehicle charging parameter monitoring display, 18, charging pile A, 19, charging pile B, 20, charging pile C.
Embodiment
Ask for an interview Fig. 1, the invention discloses a kind of from net new forms of energy energy storage charging station high power electric power supply system, include device of solar generating, super capacitor heap, solar control converting means, wind energy plant, wind energy AC/DC monitoring converting means, wind energy DC/DC voltage stabilizing supervising device, lithium battery energy storage battery heap, lithium battery management system BMS, DC700V DC bus, DC/DC converter, charging device of electric automobile, DC/AC inverter, three-phase alternating-current powered power distribution equipment, local monitor station and remote monitoring center; Described energy storage charging station electric power system can be charging device of electric automobile power 12 and three-phase alternating-current powered device 14 large power supply is provided, described energy storage charging station electric power system has DC700V common DC bus 8, combining super capacitor heap energy 2 efficient absorption solar power generation electric energy, by normally closed connection lithium battery energy storage battery heap 9, when switching solar power generation 1 and wind power generation 4, ensure direct current drive charging equipment for automobile load 12 and the not power-off of three-phase alternating-current powered device AC load 14.It is characterized in that:
Described energy storage charging station includes solar energy equipment 1 and super capacitor heap 2 for system electricity;
Described solar energy equipment 1 for collecting solar energy, and is electric energy by opto-electronic conversion the Conversion of Energy comprised in sunlight;
Described energy storage charging station electric power system includes wind energy plant 4 and super capacitor energy-storage apparatus for temporary storage 6;
Described wind energy plant 4 is for being converted to electric energy by the mechanical energy comprised in wind-force;
Described super capacitor heap 2 and super capacitor energy-storage apparatus for temporary storage 6 have low-voltage energy storage, fast charging and discharging, long-life, cycle life can reach the characteristic of more than 500,000 times, match with the characteristic of solar power generation, wind power generation, the electrical power storage of solar energy, wind energy instability, and change into stable power supply supply common DC bus 8; And give various load supplying by DC bus.
Described common DC bus 8 can improve energy conversion efficiency, reduction manufacturing cost and energy interface, communication interface modulesization assembling, energy interface, communication interface modules dilatation can be reached, described common DC bus 8 can be powered to direct current drive charging equipment for automobile load 12 and three-phase alternating current load 14 simultaneously, and piles 9 charge storage electric energy to lithium battery energy storage battery;
Described energy storage charging station high power electric power supply system includes: solar energy MPPT voltage stabilizing monitoring converting means 3, and described solar energy MPPT voltage stabilizing monitoring converting means 3 sets Protection parameters and unidirectional power supply; Wind energy AC/DC rectifying and voltage-stabilizing monitoring converting means 5, described wind energy AC/DC rectifying and voltage-stabilizing monitoring converting means 5 sets Protection parameters and unidirectional power supply; Described solar energy equipment 1 and wind energy plant 4 carry out Based Intelligent Control switching and management by intelligent local monitor station 15 and power to direct current drive charging equipment for automobile for electric loading 12 and three-phase alternating-current powered load 14 and pile 9 to lithium battery energy storage battery charging, lithium battery energy storage battery heap 9 keeps electric energy completely to store, ensure when solar energy equipment 1 and wind energy plant 4 cannot be powered, lithium battery energy storage battery heap 9 can be powered separately;
Described energy storage charging station electric power system includes: DC700V/DC400V converter 11 and DC700V/AC400V inverter 13, and described DC/DC converter 11 is transformed into applicable charging device of electric automobile DC load 12 for realizing DC bus electricity; Described DC/AC inverter 13 converts alternating current supply load 14 to for realizing DC bus electricity; Described DC/DC converter 11 and inverter 13 are connected on common DC bus 8 and lithium battery energy storage battery heap 9; When DC load charging device of electric automobile 12 needs electricity consumption, the delivery of electrical energy of common DC bus 8 and lithium battery energy storage battery heap 9 is powered to DC load charging device of electric automobile 12; When AC load 14 needs electricity consumption, the delivery of electrical energy of common DC bus 8 and lithium battery energy storage battery heap 9 is powered to AC load 14.
Preferably, the intelligent power electric power system super-capacitor module of described energy storage charging station has the characteristic of low-voltage energy storage and fast charging and discharging, the electrical power storage of solar energy 1 and wind energy 4 instability, changes into stable power supply; The manufacturing cost of described common DC bus 8 system and device capable of reducing power source and energy interface modularization assembling, can reach energy interface and communication interface modules dilatation, described common DC bus 8 can be powered simultaneously be piled 9 charge storage electric energy to AC load 14, DC load 12 and lithium battery energy storage battery.
As Fig. 2, the programming in logic at described intelligent local monitor station 15 controls the characteristic had, electric supply system cold start-up, from initialization carry out detection solar power generation, wind power generation power supply input parameter, generating is normal, starts powering load; When monitor DC bus 8 generate electricity electric energy be greater than load time, DC bus 8 simultaneously to lithium battery energy storage battery heap 9 charging; The SOC charge condition of lithium battery energy storage battery heap 9 is detected by BMS10 in local monitor station 15, and voltage is less than set point or SOC is less than 100%, then solar energy, wind power generation electric energy are to lithium battery energy storage battery heap 9 charging; When lithium battery energy storage battery piles with electricity then floating charge or shutoff charging; When monitoring solar energy, wind power generation input power electric energy is when being less than bearing power, then lithium battery energy storage battery heap exports supplementary power and powers to AC load and DC load; When 9 electricity deficiency is piled by BMS10 detection lithium battery energy storage battery in intelligent local monitor station 15, intelligent local monitor station 15 is assigned instruction and is reduced load or disconnecting consumers, to protect lithium battery energy storage battery to pile the safe operation of 9; Intelligence local monitor station 15 is monitored solar power generation, wind power generation, DC bus, the input of lithium battery energy storage battery heap and the load of direct current drive charging equipment for automobile, electric supply installation AC load in real time, assigns control command by the programming in logic set; Monitored instruction, all through collection and the logic control smart communication protocol of communication process, realizes Based Intelligent Control and the remote signalling Long-distance Control of energy storage charging station electric power system.
As Fig. 3, described energy storage charging station electric power system, its characteristic is: the charging electric vehicle needed given by described direct current drive charging device 12 by each charging pile, power as given charging pile A, charging pile B and charging pile C, give charging electric vehicle respectively, by charging pile and direct current drive charging device, each parameter of charging is passed to vehicle charging parameter monitor 17 to monitor in real time simultaneously, then monitoring parameter is uploaded to intelligent local monitor station 15; Control command is assigned by the programming in logic set in intelligence local monitor station 15, the safe operation of monitoring direct current drive charging device 12 and each charging pile.
Preferably, the intelligent power electric power system of described energy storage charging station, described direct current charging equipment for automobile 12 can monitor each vehicle charging state parameter, and each parameter of charging is uploaded to vehicle charging parameter monitoring display 17 and local monitor station, realize charging electric vehicle to monitor in real time, ensure charging electric vehicle safe operation.
Above-mentioned listed specific implementation is nonrestrictive, and to one skilled in the art, not departing from the scope of the invention, the various modifications and variations of carrying out, all belong to protection scope of the present invention.
Claims (8)
1., from a net new forms of energy energy storage charging station electric power system, include device of solar generating, super capacitor heap, solar control converting means, wind energy plant, wind energy AC/DC monitoring converting means, wind energy DC/DC voltage stabilizing supervising device, lithium battery energy storage battery heap, lithium battery management system BMS, DC700V DC bus, DC/DC converter, charging device of electric automobile, DC/AC inverter, three-phase alternating-current powered power distribution equipment, local monitor station and remote monitoring center; Described energy storage charging station electric power system can be charging device of electric automobile power (12) provide large power supply to charging electric vehicle and AC load (14), described energy storage charging station electric power system has DC700V common DC bus, combining super capacitor heap energy efficient absorption solar power generation electric energy, by normally closed connection lithium battery energy storage battery heap (9), when switching solar energy equipment (1) and wind energy plant (4) power supply, ensure direct current drive charging equipment for automobile load (12) and AC load (14) not power-off.It is characterized in that:
Described energy storage charging station includes solar energy equipment (1) and super capacitor heap (2) for system electricity;
Described solar energy equipment (1) for collecting solar energy, and is electric energy by opto-electronic conversion the Conversion of Energy comprised in sunlight;
Described energy storage charging station electric power system includes wind energy plant (4) and super capacitor energy-storage apparatus for temporary storage (6);
Described wind energy plant (4) is for being converted to electric energy by the mechanical energy comprised in wind-force;
Described super capacitor heap (2) and super capacitor energy-storage apparatus for temporary storage (6) have low-voltage energy storage, fast charging and discharging, long-life, cycle life can reach the characteristic of more than 500,000 times, match with the characteristic of solar power generation, wind power generation, the electrical power storage of solar energy, wind energy instability, and change into stable power supply supply common DC bus (8); And give various load supplying by DC bus.
Described common DC bus (8) can improve energy conversion efficiency, reduce manufacturing cost and energy interface modularization assembling, energy interface, communication interface modules dilatation can be reached, described common DC bus (8) can be powered to direct current drive charging equipment for automobile load (12) and three-phase alternating current load (14) simultaneously, and to lithium battery energy storage battery heap (9) charge storage electric energy;
Described energy storage charging station electric power system includes: solar energy MPPT voltage stabilizing monitoring converting means (3) and wind energy AC/DC rectifying and voltage-stabilizing monitoring converting means (5), described solar energy MPPT voltage stabilizing monitoring converting means (3) setting Protection parameters and unidirectional power supply; Described wind energy AC/DC rectifying and voltage-stabilizing monitoring converting means (5) setting Protection parameters and unidirectional power supply; Described solar energy equipment (1) and wind energy plant (4) carry out Based Intelligent Control switching and management by intelligent local monitor station (15) and power to direct current drive charging equipment for automobile for electric loading (12) and three-phase alternating-current powered load (14) and pile (9) to lithium battery energy storage battery charging, lithium battery energy storage battery heap (9) keeps electric energy completely to store, ensure when solar energy equipment (1) and wind energy plant (4) cannot be powered, lithium battery energy storage battery heap (9) can be powered separately;
Described energy storage charging station electric power system includes: DC700V/DC400V converter (11) and DC700V/AC400V inverter (13), and described DC/DC converter (11) is transformed into applicable charging device of electric automobile DC load (12) for realizing DC bus electricity; Described DC/AC inverter (13) converts alternating current supply load (14) to for realizing DC bus electricity; Described DC/DC converter (11) and inverter (13) are connected on common DC bus (8) and lithium battery energy storage battery heap (9); When DC load charging device of electric automobile (12) needs electricity consumption, solar power generation, wind power generation are powered to DC load charging device of electric automobile (12) by the delivery of electrical energy of common DC bus (8) and lithium battery energy storage battery heap (9); When AC load (14) needs electricity consumption, the electric energy of common DC bus (8) and lithium battery energy storage battery heap (9) is transferred to AC load (14) power supply by DC/AC inverter (13).
2. energy storage charging station electric power system as claimed in claim 1, it is characterized in that: described energy storage charging station high power electric power supply system includes super capacitor energy-storage heap (2), described super capacitor energy-storage heap (2) is piled (9) by solar energy MPPT voltage stabilizing monitoring converting means (3) with lithium battery energy storage battery and is connected, described super capacitor energy-storage apparatus for temporary storage (6) is piled (9) by wind energy AC/DC rectifying and voltage-stabilizing monitoring converting means (5) with wind energy plant (4), common DC bus (8) and lithium battery energy storage battery and is connected, the energy storage characteristic of super capacitor energy-storage heap (2) and solar energy equipment (1), the power generation characteristics that super capacitor energy-storage apparatus for temporary storage (6) and wind energy AC/DC rectifying and voltage-stabilizing monitor converting means (5) matches, energy efficient absorption solar energy, wind power generation, solar energy, the electrical power storage of wind energy instability is got up, fast charging and discharging, long-life, cycle life can reach more than 500,000 times, super capacitor energy-storage heap (2), the energy storage characteristic of super capacitor energy-storage apparatus for temporary storage (6) and solar energy equipment (1), wind energy plant (4) power generation characteristics combines, the advantage of the maximum performance of energy two kinds of characteristics, play maximal efficiency, reduce operation expense simultaneously, super capacitor energy-storage heap (2) carries out control and management by solar energy MPPT voltage stabilizing monitoring converting means (3), the electrical power storage of solar energy instability, change into stable power supply supply common DC bus (8), realize solar energy highly effective low pressure accumulate and stable power-supplying, can power to load and lithium battery energy storage battery heap (9) charge storage electric energy simultaneously, super capacitor energy-storage apparatus for temporary storage (6) carries out control and management by wind energy AC/DC rectifying and voltage-stabilizing monitoring converting means (5), the electrical power storage of wind energy instability, change into stable power supply supply common DC bus (8), realize wind energy efficient low-pressure stable power-supplying, can power to load and lithium battery energy storage battery heap (9) charge storage electric energy simultaneously.
3. energy storage charging station electric power system as claimed in claim 1 or 2, it is characterized in that: described solar energy equipment (1) input, wind energy plant (4) input pile (9) general DC busbar with lithium battery energy storage battery, power supply input can be reached and switch not power-off and energy equilibrium, multichannel input power supply, communication interface modulesization is pluggable, realizes low-cost multi-channel input power supply and low cost energy interface and communication interface dilatation; Power supply stable output is reliable, and the control of every road monitoring unit on-site manual, Based Intelligent Control and remote signalling Long-distance Control, can gather the various parameters on every road, and realizes intelligent switching according to the situation of setting.Backstage remote monitoring center (16) and intelligent local monitor station (15) real time communication, respectively inputted, export the operational factor of each unit by remote signalling remote monitoring, what can control that the energy input of each road and each road load export cut-offs simultaneously, ensures the stable safety with load of power supply.
4. energy storage charging station electric power system as claimed in claim 3, it is characterized in that: described common DC bus (8) export exchanged with DC/DC converter (11) by DC/AC inverter (13), direct current two passages, by intelligent local monitor station (15) carry out control switching and management export power to AC load (14) and DC load (12); Simultaneously backstage remote monitoring center (16) respectively input, export the operational factor of each unit by remote signalling remote detection, can control cut-offfing of the energy input of each road and the output of each road load simultaneously, realize remote monitoring and control.
5. energy storage charging station electric power system as claimed in claim 3, it is characterized in that: the protection of described lithium battery energy storage battery heap (9) is communicate with intelligent local monitor station (15) by battery management system BMS (10) with charging, electric discharge, in real time to the monitoring that lithium battery energy storage battery piles the monomer voltage of (9), module voltage, lithium battery pile total voltage, electric current, temperature and SOC; The monitoring management circuit of lithium battery management system (10) adopts high-precision measuring chip, each acquisition parameter precision is high, reduce the estimation error of lithium battery module residual capacity SOC, Master control chip can be made to complete control accurately, guarantee the protection to (9) discharge and recharge of lithium battery heap and control; Electromagnetism relay switch is had to be electrically connected in lithium battery energy storage battery heap (9) and the electrical connection of common DC bus (8); described intelligent local monitor station (15) is by the communication of RS485; realize lithium battery energy storage battery heap (9) charge and discharge protecting, realize input with solar energy simultaneously, the Based Intelligent Control of wind energy input switches and preferential power supply order.
6. as claim 1,2,3,4,5, as described in energy storage charging station electric power system, it is characterized in that: described solar energy MPPT voltage stabilizing monitoring converting means (3), wind energy AC/DC conversion supervising device (5), wind energy DC/DC voltage stabilizing supervising device (7), the battery management BMS (10) of lithium battery energy storage battery heap (9), DC/DC converting means (11), DC/AC inverter (13), intelligent local monitor station (15) are all powered by independent current source or auxiliary ups power double spare, can isolate the interference of main power source; Each monitoring unit and intelligent local monitor station (15) all adopt RS485 or CAN independent communication, and by electromagnetism relay switch electrical connection switch control rule, ensure communication and the promptness controlled, accuracy and safe and reliable; To be controlled by the programming in logic of intelligent local monitor station (15) and computer realizes local intelligent control; Intelligence local monitor station (15) realizes remote monitoring and control by remote signalling, Ethernet or optical fiber telecommunications and background monitoring center (16).
7. energy storage charging station electric power system as claimed in claim 6, it is characterized in that: the programming in logic of described intelligent local monitor station (15) controls the characteristic had, electric supply system cold start-up, from initialization carry out detection solar power generation, wind power generation power supply input parameter, generating is normal, starts powering load; When monitoring DC bus (8) generating electric energy and being greater than load, DC bus (8) is simultaneously to lithium battery energy storage battery heap (9) charging; The SOC charge condition of lithium battery energy storage battery heap (9) is detected by BMS (10) in local monitor station (15), voltage is less than set point or SOC is less than 100%, then solar energy, wind power generation electric energy are to lithium battery energy storage battery heap (9) charging; When lithium battery energy storage battery piles with electricity then floating charge or shutoff charging; When monitoring solar energy, wind power generation input power electric energy is when being less than bearing power, then lithium battery energy storage battery heap exports supplementary power and powers to AC load and DC load; When intelligent local monitor station (15) detects lithium battery energy storage battery heap (9) electricity deficiency by BMS (10), intelligence local monitor station (15) is assigned instruction and is reduced load or disconnecting consumers, to protect lithium battery energy storage battery to pile the safe operation of (9); Intelligence local monitor station (15) is monitored solar power generation, wind power generation, DC bus, the input of lithium battery energy storage battery heap and the load of direct current drive charging equipment for automobile, electric supply installation AC load in real time, assigns control command by the programming in logic set; Monitored instruction, all through collection and the logic control smart communication protocol of communication process, realizes Based Intelligent Control and the remote signalling Long-distance Control of energy storage charging station electric power system.
8. energy storage charging station electric power system as claimed in claim 4, its characteristic is: described direct current drive charging device (12) gives the charging electric vehicle needed by each charging pile, power as given charging pile A, charging pile B and charging pile C, give charging electric vehicle respectively, by charging pile and direct current drive charging device, each parameter of charging is passed to vehicle charging parameter monitor (17) to monitor in real time simultaneously, then monitoring parameter is uploaded to intelligent local monitor station (15); Intelligence local monitor station (15) assigns control command by the programming in logic set, the safe operation of monitoring direct current drive charging device (12) and each charging pile.
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| CN105141020A (en) * | 2015-09-29 | 2015-12-09 | 大连罗宾森电源设备有限公司 | Module integrated type single and dual-gun alternating current (AC) charging pile |
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