CN104767238A - Power supply management system for public facilities in cities and towns - Google Patents
Power supply management system for public facilities in cities and towns Download PDFInfo
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- CN104767238A CN104767238A CN201510110665.2A CN201510110665A CN104767238A CN 104767238 A CN104767238 A CN 104767238A CN 201510110665 A CN201510110665 A CN 201510110665A CN 104767238 A CN104767238 A CN 104767238A
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- 238000004146 energy storage Methods 0.000 claims abstract description 44
- 230000009466 transformation Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 description 16
- 238000003860 storage Methods 0.000 description 12
- 230000008901 benefit Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
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- 238000003912 environmental pollution Methods 0.000 description 1
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- 239000013589 supplement Substances 0.000 description 1
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Classifications
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- H02J3/382—
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
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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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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Photovoltaic Devices (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to a power supply management system for public facilities in cities and towns. The power supply management system comprises a photovoltaic cell, a wind driven generator and an energy storage device, and the photovoltaic cell and the wind driven generator charge the energy storage device. The power supply management system further comprises an on-site power station control cabinet, the energy storage device is arranged inside the on-site power station control cabinet, and an inverter system and a control management system connected with the output of the energy storage device are further arranged inside the on-site power station control cabinet. The output of the inverter system is connected with the power input ends of the public facilities in the cities and towns and a public supply network. A control switch is arranged at the connecting position of the output of the inverter system and the public supply network. The control management system is connected with the inverter system and the control end of the control switch. Green energy generated by the photovoltaic cell and the wind driven generator is uniformly collected and stored into the energy storage device, and then under control of the control management system, voltage which is compatible with a mains supply is generated through the inverter system and used for supplying power to the public facilities in the cities and towns.
Description
Technical field
The present invention relates to power supply administrating system, particularly a kind of urban public utility making full use of the green energy resource such as solar energy, wind energy is powered administrating system.
Background technology
Along with the progress of urbanization, particularly country implements major reform to power domain, and cancel the status of original national power plant monopolization power supply, the power consumption for various ways provides wide development space.This wherein especially to power the most advanced and environmental protection with circulating energy-saving.Urban public utility is as street lamp, traffic signals facility and various surveillance all need electricity consumption, and these facility dispersion in cities and towns everywhere, in use can utilize solar energy fully, the various green energy resource such as wind energy, at present, a lot of place is being street lamp, traffic signals facility, during the power supply such as city surveillance, at street lamp post, building and other communal facility install photovoltaic cell and wind-driven generator, as installed photovoltaic cell and wind-driven generator on street lamp post, utilize the electrical power storage that photovoltaic cell and wind-driven generator export by a group storage battery, then the electric energy stored in storage battery is utilized to be street lamp power supply, road lamp power supply at night, at present, there is such street lamp power supply, road lamp power supply administrating system, this power supply administrating system comprises and is arranged on photovoltaic cell on street lamp post and wind-driven generator and batteries, and utilize photovoltaic cell to the photovoltaic charged circuit of charge in batteries and the wind-driven generator charging circuit utilizing wind-driven generator to charge to storage battery, these two charging circuits are the direct voltage voltage converted to required for charge in batteries exported by photovoltaic cell is charge in batteries, this is a DC/DC circuit, another is the alternating current voltage be converted to required for charge in batteries exported by wind-driven generator is charge in batteries, it is an AC/DC circuit, technology so is at present very ripe, also higher conversion efficiency can be had, but there is following problem like this:
First, if the electric energy that green energy resource produces as wind energy and sun the subject of knowledge and the object of knowledge is more, exceeded needed for street lamp, then overage can not make full use of.
Secondly, need to transform street lamp, owing to adopting storage battery to be directly street lamp power supply, road lamp power supply, in order to make efficiency higher, general street lamp all needs to adopt direct current supply, and this makes such street lamp and uses the street lamp of mains-supplied incompatible at present.
Finally, in order to meet needed for overcast and rainy street lighting, be equipped with the storage battery of demand fulfillment 7 days electric consumption on lighting, adding investment.
Summary of the invention
The present invention is directed to and adopt at present green energy resource to power the above-mentioned deficiency that administrating system brings as urban public utility, a kind of urban public utility power supply management system is provided, this system is on existing urban public utility basis, make full use of the electric energy that photovoltaic cell and wind-driven generator provide, and existing line can be utilized to realize regulating with effective interlock of urban distribution network and electricity.
The technical solution adopted in the present invention is: a kind of urban public utility power supply management system, comprises photovoltaic cell, wind-driven generator and energy storage device, and described photovoltaic cell, wind-driven generator are respectively described energy storage device charging; Also comprise on-the-spot Control of Power Plant cabinet, described energy storage device is arranged in described on-the-spot Control of Power Plant cabinet, is also provided with the inversion system and Control management system that export with energy storage device and be connected in described on-the-spot Control of Power Plant cabinet; The output of described inversion system is connected with the power input of urban public utility and public electric wire net; The output of described inversion system and public electric wire net connecting place are provided with control switch; Described Control management system is connected with the control end of control switch with described inversion system.
Urban public utility of the present invention administrating system of powering is saved in energy storage device due to the green energy resource that have employed unified collection photovoltaics battery and wind-driven generator and produce, then under the control of Control management system, producing with the voltage of civil power compatibility by inversion system is that urban public utility is powered, such system does not need transformation, directly can utilize the original municipal communal facility using mains-supplied, do not need to transform these systems, substantial contribution can be saved, in addition, the green energy resource of affluence can be input to public electric wire net by the state according to public electric wire net and green energy resource, when green energy resource is not enough, also public electric wire net can be utilized to power for urban public utility, to ensure the continuous operation of urban public utility energy.
In technical scheme of the present invention, also there is following optimal way:
The power input of described urban public utility is also provided with transformation device, and described transformation device source is connected with public electric wire net with the output of described inversion system respectively, and power transformation output is connected with the power input of urban public utility respectively.Described urban public utility comprises street lamp, traffic signals facility and surveillance.Described photovoltaic cell and wind-driven generator are arranged on light pole or on building respectively.Like this, utilize transformation device to power for urban public utility accurate stable.
Described energy storage device comprises ultracapacitor.Like this, when overcoming current use accumulators store electric power, because storage battery itself is limited for useful life, and scrap battery itself is difficult to the deficiency of innoxious preservation.
Below with reference to drawings and Examples, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is that urban public utility of the present invention is powered administrating system block diagram.
Embodiment
Embodiment 1, as shown in Figure 1, the present embodiment is the existing communal facility electric line of a kind of support, as street lamp, the use electric line of traffic signals and other watch-dogs etc., take solar energy, the green energy resources such as wind energy implement the electricity generation system concentrating extensive power supply, that one makes full use of solar energy, the communal facility of the green energy resources such as wind energy is powered administrating system, as shown in Figure 1, native system is that one takes Scatter Gather solar energy, wind energy concentrates the system of store and management, with currently used solar energy, wind powered street lamp or other communal facility Scatter Gather energy, separately nearby for communal facility is powered difference.
In the present embodiment, the photovoltaic cell that utilization is arranged on light pole and/or the electric power that wind-driven generator produces are centrally stored in an energy storage device be made up of ultracapacitor, in order to feasible region management, for one in city, native system can be powered to the communal facility in a region and be managed, as to circumference a few kilometer range in street lamp, traffic lights, communal facilitys such as surveillance and be arranged on these communal facilitys as on light pole or other building, photovoltaic cell on structures, wind-driven generators etc. manage, an administrative center is set in city, by carrying out wired or radio communication with the power supply management system of each the present embodiment, the communal facility in whole city is powered and manages, if samll cities and towns, then only need the system that such.In an on-the-spot Control of Power Plant cabinet, a Control management system is utilized to realize photovoltaic cell and wind-driven generator charges to energy storage device, certain energy storage device has a lot of type at present, also can adopt the jumbo storage device such as lead-acid battery or super capacitance cell.
Under the control of Control management system, the output being arranged on the photovoltaic cell on each light pole, building or other facility utilizes DC/DC circuit to produce charging voltage for energy storage device to charge, and it is energy storage device charging that the output that same dispersion is arranged on many wind-driven generators on light pole, building or other facility produces charging voltage by AC/DC circuit.
At the scene in Control of Power Plant cabinet, also be provided with inversion system, the DC power supply that energy storage device exports is reverse into 0.4KV alternating current by this inversion system, consistent with the voltage of the utility grid used at present, because the communal facility in current existing cities and towns all adopts China standard 0.4KV alternating current, and the power input of each urban public utility all needs the alternating current inputting 0.4KV, this 0.4KV alternating current is utilized to be used by the power supply of each urban public utility inside.Like this, in whole urban public utility, do not need to transform the original equipment adopting public electric wire net to power, directly just the green energy resource that solar energy, wind-driven generator etc. produce can be used, this is also a feature of the present embodiment, the voltage that direct generation is consistent with public electric wire net, for any urban public utilities are powered.
The main feature of the present embodiment is the Control management system arranged in Control of Power Plant cabinet at the scene, at present, concerning industry, intelligent control system has a lot, those skilled in the art can realize a lot of function as required, and the Control management system in the present embodiment comprises with lower part:
A, realize controlling photovoltaic cell and wind-driven generator, control as the charging circuit controlled when charging to energy storage device comprises AC/DC and DC/DC circuit, make it produce stable charging voltage, to ensure the useful life of energy storage device.Therefore, in Control management system, be provided with the control module that charging circuit is controlled.
B, inversion system to be controlled, detect the capacity of energy storage device, if the capacity of energy storage device is higher, and urban public utility did not need work at that time, as street lamp on daytime does not need work, now, green energy resource is input to energy storage device and will exceedes its rated capacity endlessly, now, control inversion system works, produce alternating current and be input to public electric wire net by control switch, a bidirectional measuring table can be adopted here.At this moment, power supply administrating system is a kind of Blast Furnace Top Gas Recovery Turbine Unit (TRT), be in generating operation mode, utilize existing city space and public utility vacant position that solar energy, wind energy generating plant generating are installed, institute's electricity utilizes the photovoltaic wind energy-storage system of present situation public utility cable storage in on-the-spot Control of Power Plant cabinet, through combining inverter, DC inverter stored by photovoltaic wind energy-storage system is become 0.4KV alternating current, utilize present situation common transformer to boost to 10KV, utilize utility power cable line to carry out feed to municipal electrical network; The bidirectional measuring ammeter that power supply administration provides measures electricity.Therefore, in Control management system, be provided with the checkout gear that energy storage device is detected and the Inverter control module that inversion system is controlled, simultaneously, charging index is obtained above according to the control module controlled charging circuit, determine when controlling inverter work, is input to public electric wire net after the DC inverter that energy storage device is exported, makes native system become the power station of a green energy resource.
C, when urban public utility uses, if green energy resource is not enough, controls control switch and close, utilize civil power to power for urban public utility, now, Control management system controls inversion system and quits work.Therefore, the control module utilizing public electric wire net to power for urban public utility is set in Control management system.
D, when green energy resource is not enough, public electric wire net can be utilized to charge, no matter owing to being photovoltaic cell or wind-driven generator for energy storage device when low power consumption, its electric energy produced is all relevant with weather, is unstable in essence, because, Changes in weather is variable, as run into many days rainy weathers, now photovoltaic cell is less than output, but calm, therefore, wind-driven generator does not also export, and now, public electric wire net can only be utilized to power for urban public utility.Therefore, in Control management system, be provided with control public electric wire net is the control module that urban public utility is powered.
E, to use electricity in off-peak hours at present be a kind of power mode of economy, therefore in order to make full use of this cover power supply administrating system, Control management system can when low power consumption, public electric wire net is utilized to charge for energy storage device, when peak of power consumption, can control inverter work be that urban public utility is powered or generates electricity to public electric wire net again.A kind of peak load shifting operating mode that Here it is; During night Peak power use, the electric power stored by energy-storage system provides electric power to city street lamp illumination, also can use as the emergency power supply of utility network temporary interruption simultaneously.Therefore, the module utilizing public electric wire net to charge for energy storage device is also set, this module controls peak load shifting operating mode at Control management system.In this case some funds can be saved, energy storage system capacity as current is larger, when energy-storage system is full of electricity, a kind of energy-storage system can, for communal facility about 7 days, also have about can only being applicable to, illustrate for larger energy-storage system below, if the energy-storage system of capacity large is like this used for peak load shifting, economic benefit that will be effectively good, often spending electricity as some places when peak of power consumption is 1.076 yuan, when low power consumption, often spend electricity and be only 0.466 yuan.
To rise in October, 2004 peak interval of time to divide as somewhere and be adjusted to:
Peak period: 9:00-11:30,14:00-16:30,19:00-21:00(totally 7 hours);
Section at ordinary times: 7:00-9:00,11:30-14:00,16:30-19:00,21:00-23:00(totally 9 hours);
Low-valley interval: 23:00-7:00(next day totally 8 hours).Peak: 1.076 yuan; Flat: 0.796 yuan; Paddy: 0.466 yuan.
Like this, when calculating low power consumption when green energy resource collection capacity, when low power consumption, by public electric wire net, remaining capacity can be full of, when peak of power consumption, again can by the electric energy feedback in energy-storage system in public electric wire net, utilize bidirectional measuring table, price difference can be calculated, if when the energy storage device of this cover system possesses the capacity storing 10000KVAH, and this region green energy resource energy output of a day is when being 20KVAH, the civil power of 8000KVAH can be stored when low power consumption, electrical network is outputted to when electricity consumption peak value, then ideally can obtain the income of 5368 yuan, peak load shifting operating mode that Here it is can obtain the reason of good economic benefit.Certainly, some places network to green energy resource and adopt incentives, adopt higher price, just need the electric energy by photovoltaic cell and wind-driven generator produce to network in addition when green energy resource networks.Therefore, in Control management system, be provided with the control module of carrying out peak load shifting operating mode.In addition, consider fail safe, the checkout gear detecting public electric wire net operating state in this Control management system, can also be provided with, when detecting that public electric wire net is overhauling etc., control switch can be controlled do not close, in order to avoid damage the workman overhauled.
F, at present, automaticity is very high, can arrange communication system at Control management system, can adopt current gprs system or other communication system, realizes the communication of on-the-spot Control of Power Plant cabinet and central control system.
The urban public utility of the present embodiment administrating system technical characteristics of powering is: the advantage 1, playing light wind integrated power generation, is convenient to continue generating under multiple weather condition; 2, utilize the vacant position of public utility to install, utilize utility cable circuit to carry out feed, greatly save mounting cost.As: the daylighting such as illumination monitoring facility, noise control screening sound facility, bus station, high-rise buildings roof, city on highway, through street, municipal road is good, mistake wind is installed position smoothly; 3, circulating power supply, can play city electricity consumption " peak load shifting " effect, balancing electric power demand, becomes the strong of urban public electric and supplements; 4, there is good economic benefit.Under state's household electrical appliances change overall background, electric cost can be reduced by independent power generation, create economic benefit, the electricity consumption price difference of Different periods can be utilized to carry out electricity allotment, increase economic benefit; 5, green energy conservation.The resource consumption of the power consumption generatings such as thermoelectricity can be greatly reduced, reduce environmental pollution; 6, native system adopts solar panel generating and wind-driven generator generating, and photovoltaic wind energy-storage system adopts ultracapacitor device to store electric power; 7, be beneficial to city street lamp reducing energy consumption, save reducing energy consumption expense; 8, the electricity charge expenditure of public electricity-using is saved; 9, native system adopts ultracapacitor energy storage, no storage battery, saves operation and maintenance cost and storage battery aftertreatment expense, effectively prevent process storage battery to the secondary pollution of environment; 10, support national industry development, adopt light wind integration city circulating energy-saving electricity generation system to digest and solve a solar cell production capacity surplus difficult problem.
Claims (5)
1. a urban public utility power supply management system, comprises photovoltaic cell, wind-driven generator and energy storage device, and described photovoltaic cell, wind-driven generator are respectively described energy storage device charging; It is characterized in that: also comprise on-the-spot Control of Power Plant cabinet, described energy storage device is arranged in described on-the-spot Control of Power Plant cabinet, is also provided with the inversion system and Control management system that export with energy storage device and be connected in described on-the-spot Control of Power Plant cabinet;
The output of described inversion system is connected with the power input of urban public utility and public electric wire net; The output of described inversion system and public electric wire net connecting place are provided with control switch;
Described Control management system is connected with the control end of control switch with described inversion system.
2. urban public utility power supply management system according to claim 1, it is characterized in that: on the power input of described urban public utility, be also provided with transformation device, described transformation device source is connected with public electric wire net with the output of described inversion system respectively, and power transformation output is connected with the power input of urban public utility respectively.
3. urban public utility power supply management system according to claim 1, is characterized in that: described urban public utility comprises street lamp, traffic signals facility and surveillance.
4. urban public utility power supply management system according to claim 3, is characterized in that: described photovoltaic cell and wind-driven generator are arranged on light pole or on building respectively.
5., according to described urban public utility power supply management system arbitrary in Claims 1-4, it is characterized in that: described energy storage device comprises ultracapacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510110665.2A CN104767238A (en) | 2015-03-13 | 2015-03-13 | Power supply management system for public facilities in cities and towns |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510110665.2A CN104767238A (en) | 2015-03-13 | 2015-03-13 | Power supply management system for public facilities in cities and towns |
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| CN104767238A true CN104767238A (en) | 2015-07-08 |
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| CN201510110665.2A Pending CN104767238A (en) | 2015-03-13 | 2015-03-13 | Power supply management system for public facilities in cities and towns |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105898973A (en) * | 2016-05-23 | 2016-08-24 | 江苏恒鹏电气集团有限公司 | Street lamp power supply device borrowed by monitoring power supply |
| CN109450076A (en) * | 2018-12-11 | 2019-03-08 | 辽宁凯信工业技术工程有限公司 | A kind of municipal public safety intelligent emergency power system and application method |
-
2015
- 2015-03-13 CN CN201510110665.2A patent/CN104767238A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105898973A (en) * | 2016-05-23 | 2016-08-24 | 江苏恒鹏电气集团有限公司 | Street lamp power supply device borrowed by monitoring power supply |
| CN109450076A (en) * | 2018-12-11 | 2019-03-08 | 辽宁凯信工业技术工程有限公司 | A kind of municipal public safety intelligent emergency power system and application method |
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Application publication date: 20150708 |