CN103023124A - Light energy and mains supply complemented solar base station power supply system - Google Patents
Light energy and mains supply complemented solar base station power supply system Download PDFInfo
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- CN103023124A CN103023124A CN201210575731XA CN201210575731A CN103023124A CN 103023124 A CN103023124 A CN 103023124A CN 201210575731X A CN201210575731X A CN 201210575731XA CN 201210575731 A CN201210575731 A CN 201210575731A CN 103023124 A CN103023124 A CN 103023124A
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Abstract
The invention discloses a light energy and mains supply complemented solar base station power supply system which comprises a mains supply power supply branch, a light energy power supply branch, an equalizer and a wireless remote monitoring module. The mains supply power supply branch and the light energy power supply branch are in cooperative operation, the equalizer is respectively connected with the mains supply power supply branch and the light energy power supply branch and used for coordinating the mains supply power supply branch and the light energy power supply branch to operate, and the wireless remote monitoring module is respectively connected with the equalizer and the light energy power supply branch and used for remote monitoring. The light energy and mains supply complemented solar base station power supply system can overcome the defects of poor power supply reliability, low energy conversion efficiency, high cost and the like in the prior art and has the advantages of high power supply reliability, high energy conversion efficiency and low cost.
Description
Technical field
The present invention relates to the communication base station technical field, particularly, relate to the solar energy base station electric power system of a kind of luminous energy and mains hybrid.
Background technology
The energy is the material base of the human society survival and development, especially the basis of the national economic development.Owing to unconfinedly cut coal, the fossil energies such as oil, natural gas, caused global environmental pollution and ecological disruption, the mankind's survival and development have been consisted of threat.For human social economy can steady development, human in the urgent need to seeking other alternative energy resources.
In recent years, China's Telecommunication's network size has leapt to the first in the world, and the energy consumption of communication industry is also soaring rapidly.The power consumption in China's basic telecommunication operation enterprise every year surpasses 30,000,000,000 degree (KWh).China Mobile wherein mainly is mobile device and air conditioner in machine room electricity consumption at nearly 13,000,000,000 KWh of consumes power in 2009, and in the power consumption of mobile base station, base station equipment and air-conditioning respectively account for 45% approximately.Each common carrier is in order to reduce capital expenditure and operation expenses, actively carry out theory study and practice in energy-conservation fields such as communications equipment room and mobile communication base stations, main around how reducing air-conditioning power consumption and base station equipment power consumption, the energy-conservation measures such as technology application such as fresh air energy-saving, energy-saving and frequency-variable, novel refrigerant be energy-conservation have been proposed.Power supply is part thing basis and the basic guarantee that communication network is built as " heart " of communication system, and the energy that can save is limited after all.Here just need us to change traditional thinking mode, be transformed in the generating from economize on electricity, people can use wind-powered electricity generation cheaply, photoelectricity to be the accessory power supply of communication base station, substitute the consumption of civil power, reduce the electric cost of electricity consumption enterprise.
Solar energy is a kind of clean energy resource from the Nature, and belongs to inexhaustible, nexhaustible regenerative resource.Utilize corresponding technology, solar energy can be converted into electric energy, and the electric energy that this energy produces can be created huge social benefit by effective utilization.
Under the energetically support of national governments, last decade comes the annual average rate of increase of solar cell and assembly to reach 33%; Growth rate reaches 43% especially in nearest 5 years.China is a developing country, also is energy resource consumption big country.The growth rate of AND ENERGY RESOURCES CONSUMPTION IN CHINA occupies first place in the world at present.Because I cross in disposable energy-consuming, coal accounts for 70%.Cause the aggregate level of environmental quality in continuous deterioration.The large city China that pollute in the world ten occupy the majority always, and ecological deterioration has brought the socio-economic development of China and people's lives health and seriously influenced.Therefore seriousness and the urgency of China's energy substitution form have been aggravated.As energy consumption rich and influential family's communication base station, ought to comply with the ruse of war that national energy-saving reduces discharging, promote the technical ability environmental-protecting performance of communication base station, change the existing supply power mode in base station, build the green communications base station, become gradually a very important major issue.
At present, each large operator has all proposed the solution of practicable wind light mutual complementing power generation for the base station away from the remote districts of electrical network such as island, mountain area.This scheme considers that from economy wind-light complementary system is taken wind energy and the solar power generation that is derived from the Nature, and power generation process is to utilize the natural resources that obtains easily, has saved operator and has used 10 expense.And, for the remote base station that is tending towards away from electrical network such as island, mountain area, wind and solar hybrid generating system can be reliably independently for communication base station provides electric energy, and need not the access of civil power, for operator has saved the great expense that civil power access hack lever spreads line.For example, the mobile communication base station electric power system of standard configuration shown in Figure 1, the solar energy base station electric power system of the wind light mutual complementing of independent operating shown in Figure 2.
Solar cell panel assembly is to consist of the sun with that cell photovoltaic assembly square formation by the form of a large amount of solar cells by series and parallel.Photovoltaic arrays converts solar energy to direct current by photovoltaic effect, and the output voltage of photovoltaic arrays is direct current 72V, and peak power output can be slightly different according to the different base station configuration.Be converted into the direct current that meets communication machine room battery input requirements through behind the charge controller with the solar maximum power point tracking function.Both being output to inverter also can export and charge the battery.
Wind-driven generator converts wind energy to mechanical energy by aerodynamic principle by wind wheel, drive magneto alternator output becomes certain relation with wind speed alternating current, the alternating current of sending out is rectified into the direct current that meets communication machine room battery input requirements through charge controller, a part is supplied with battery, and a part is supplied with inverter in addition.
Battery pack consists of a battery pack by the connection in series-parallel of a series of 2V/500Ah batteries, and the voltage of battery pack is 48V, and capacity is decided according to loading condition.Inverter is transformed into the alternating current of 220V for Switching Power Supply and AC load with the direct current of input.DC load is the current consuming apparatus of the direct current supply of the inside, base station, such as BTS equipment, BBU, RRU etc.AC load is the current consuming apparatus of the Alternating Current Power Supply of the inside, base station, and such as auxiliary equipment such as air-conditioning, blower fans, the type equipment guarantees for the base station normal operation provides environment.
The power supply the principle of the independently-powered base station of wind light mutual complementing is as follows:
When the electric energy that wind energy and solar power generation provide relatively more sufficient, when having exceeded the power consumption of AC and DC load, charge controller can discharge and recharge control according to battery electric quantity state with the remainder electric energy.When battery was in the Full Charge Capacity state, charge controller only charged to inverter; But when battery electric quantity was not enough, charge controller can utilize dump energy that battery pack is charged.
⑵ when the electric energy that provide when wind energy and solar power generation was not enough, charge controller was only given inverter power supply, and the not enough part of inverter input is provided by battery pack.And inverter can carry out the switching on and shutting down operation to exchanging current consuming apparatus as required, guarantees that the power supply of Switching Power Supply is normal, minimizes the power consumption of alternating current equipment.
⑶ when electric energy wretched insufficiency that wind energy and sun the subject of knowledge and the object of knowledge provide, and charge controller is only given inverter power supply, and the not enough part of inverter input is provided by battery pack.And because the generation deficiency of wind energy and solar energy, inverter will cut out AC load, ensure that preferentially the power supply of communication apparatus is normal, guarantee that communication is unimpeded.
⑷ the electric energy that provide when wind energy and the sun are talkative is not enough, and during the battery electric quantity wretched insufficiency, inverter can cut out output, allows first battery electric quantity return to certain capacity and just can open output, and communication apparatus is reworked.
The communication base station wind-photovoltaic complementary power supply system utilizes the complementary characteristic of wind energy, solar energy, makes full use of the natural resources, and can generate electricity round the clock, obtains stable total electric energy output, has improved continuation and the stability of system power supply, can independently move in the open air.But this scheme has the following disadvantages a little, and is not suitable for large-scale application to accounting for base station, the most urban district of base station number because cost of investment greatly only can be suitable for the special base stations of geographical conditions such as open-air island, mountain area:
⑴ wind-driven generator is not suitable for being installed in the urban environment of building dense, and motor belongs to the easy aged deterioration of mechanical part;
⑵ this system needs jumbo battery pack, guarantees that under extreme weather conditions system still can stable operation;
⑶ the direct current that first wind energy, electric energy conversion is become to meet the battery input in this system is given inverter, by inverter direct current is converted to alternating current again and supplies with Switching Power Supply and AC load use.Owing to be subject to the impact of device, circuit efficiency, the power utilization efficient of system can reduce greatly in this process.
Wind light mutual complementing is subjected to the impact of factor of natural environment luminous energy, wind energy larger from the power supply of net base station, moves for the long-term stability of system and has brought challenge.
In realizing process of the present invention, the inventor finds to exist at least in the prior art that power supply reliability is poor, energy conversion efficiency is low and the high in cost of production defective.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose the solar energy base station electric power system of a kind of luminous energy and mains hybrid, with the advantage that realizes that power supply reliability is good, energy conversion efficiency is high and cost is low.
For achieving the above object, the technical solution used in the present invention is: the solar energy base station electric power system of a kind of luminous energy and mains hybrid, the mains-supplied branch road and the luminous energy power supply branch road that comprise cooperating, be connected with luminous energy with described mains-supplied branch road that branch road is connected respectively and be used for coordinating the equalizer that mains-supplied branch road and luminous energy power supply branch road carry out work, and be connected with luminous energy with described equalizer that branch road is connected respectively and for the remote wireless monitoring module of remote monitoring.
Further, described mains-supplied branch road, comprise the AC power distribution cabinet/AC distribution panel and the Switching Power Supply that are connected to successively described equalizer, be connected to respectively interchange input module and the oil machine input module of described AC power distribution cabinet/AC distribution panel, be connected to the battery pack between luminous energy power supply branch road and the Switching Power Supply, be connected to the AC load of AC power distribution cabinet/AC distribution panel output, and the DC load that is connected to the equalizer output.
Further, described luminous energy power supply branch road comprises the photovoltaic module and the controller for solar that are connected to successively described battery pack;
The first output of described controller for solar is connected to equalizer, and the second output is connected to the remote wireless monitoring module by communication bus; The output of described remote wireless monitoring module is connected to equalizer by communication bus.
Further, described communication bus comprises among RS482 or the RS232 any one.
Further, described mains-supplied branch road also comprises the charging circuit that is connected between described controller for solar and the battery pack.
Further, between described remote wireless monitoring module and equalizer, also be provided with GPRS module or 3G module.
The solar energy base station electric power system of the luminous energy of various embodiments of the present invention and mains hybrid, owing to comprise mains-supplied branch road and the luminous energy power supply branch road of cooperating, be connected with luminous energy with the mains-supplied branch road that branch road is connected respectively and be used for coordinating the equalizer that mains-supplied branch road and luminous energy power supply branch road carry out work, and be connected with luminous energy with equalizer that branch road is connected respectively and for the remote wireless monitoring module of remote monitoring; Equalizer can be serially connected between the output and DC load of mains-supplied branch road, be used for dynamically adjusting the output of mains-supplied branch road and the output of luminous energy power supply branch road, guarantee to guarantee its steady operation for DC load provides sufficient electric energy; Thereby can overcome the defective that power supply reliability is poor in the prior art, energy conversion efficiency is low and cost is high, with the advantage that realizes that power supply reliability is good, energy conversion efficiency is high and cost is low.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Accompanying drawing is used to provide a further understanding of the present invention, and consists of the part of specification, is used for together with embodiments of the present invention explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the operation principle schematic diagram of the mobile communication base station electric power system of standard configuration;
Fig. 2 is the operation principle schematic diagram of solar energy base station electric power system of the wind light mutual complementing of independent operating;
Fig. 3 is the operation principle schematic diagram of the solar energy base station electric power system of luminous energy and mains hybrid;
Fig. 4 is voltage and the power of the solar energy base station electric power system of luminous energy and mains hybrid;
Fig. 5 is that the maximum power point tracking of controller for solar spreads schematic diagram in the solar energy base station electric power system of luminous energy and mains hybrid;
Fig. 6 is the balanced schematic flow sheet of the input electric energy of equalizer in the solar energy base station electric power system of luminous energy and mains hybrid.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, is not intended to limit the present invention.
Usually build on the roof, residential block for the base station, urban district, illumination condition abundance and civil power are obtained easy situation; According to the embodiment of the invention, such as Fig. 3-shown in Figure 6, provide the solar energy base station electric power system of a kind of luminous energy and mains hybrid.
Referring to Fig. 3, the solar energy base station electric power system of this luminous energy and mains hybrid, the mains-supplied branch road and the luminous energy power supply branch road that comprise cooperating, be connected with luminous energy with the mains-supplied branch road that branch road is connected respectively and be used for coordinating the equalizer that mains-supplied branch road and luminous energy power supply branch road carry out work, and be connected with luminous energy with equalizer that branch road is connected respectively and for the remote wireless monitoring module of remote monitoring.Between remote wireless monitoring module and equalizer, also be provided with GPRS module or 3G module.
Wherein, the mains-supplied branch road, comprise the AC power distribution cabinet/AC distribution panel and the Switching Power Supply that are connected to successively equalizer, be connected to respectively interchange input module and the oil machine input module of AC power distribution cabinet/AC distribution panel, be connected to the battery pack between luminous energy power supply branch road and the Switching Power Supply, be connected to the AC load of AC power distribution cabinet/AC distribution panel output, and the DC load that is connected to the equalizer output; Also comprise the charging circuit that is connected between controller for solar and the battery pack.
Luminous energy power supply branch road comprises the photovoltaic module and the controller for solar that are connected to successively battery pack; The first output of controller for solar is connected to equalizer, and the second output is connected to the remote wireless monitoring module by communication bus; The output of remote wireless monitoring module is connected to equalizer by communication bus.Communication bus comprises among RS482 or the RS232 any one.
Referring to Fig. 3-Fig. 6, in the solar energy base station electric power system of the luminous energy of present embodiment and mains hybrid, controller for solar is by the solar maximum power tracking function, converts electric energy output to the luminous energy of input is maximized; The output of controller for solar can be exported to respectively battery pack and equalizer, and can carry out the charging of different mode to battery pack by the current state that detects battery pack, also can export to equalizer.
Equalizer is serially connected between the output and DC load of Switching Power Supply, is used for dynamically adjusting the output of Switching Power Supply and the output of controller for solar, guarantees to guarantee its steady operation for DC load provides sufficient electric energy.
When the illumination condition abundance, controller for solar is by the algorithm of maximum power tracing point, so that solar panel (being photovoltaic module) is operated near the maximum power point, exports all the time maximum power by day; Thereby guaranteed the efficient of circuit, the result by actual measurement shows, circuit efficiency is more than 98%, and directly is supplied to DC load and power supply, maximal efficiency utilize solar energy, reduce the use amount of civil power, save the grid electricity fee cost of operator.
Sufficient and satisfied in the situation of power consumption requirements of DC load at comparision of quantity of electricity that photovoltaic module sends, controller for solar can be controlled charging circuit and open, utilize dump energy to batteries charging, equalizer can disconnect Switching Power Supply come from equalizer, and the electric energy of DC load is provided by the output of controller for solar fully.Only enough keep DC equipment when photovoltaic output energy and take, solar energy is exported whole supply balance devices, does not give batteries charging, and equalizer control switch power cabinet is opened, and the part electric energy of DC load deficiency is provided by Switching Power Supply.
The solar energy base station electric power system of the luminous energy of above-described embodiment and mains hybrid has following characteristics:
⑴ adopt the scheme of civil power light-electricity complementary is the power supply of base station, cities and towns, is input as the master with civil power, and solar power generation is supplementary means.Solar power generation is mainly used in reducing the civil power use amount of base station, reduces the cost of the long-term operation of operator.
⑵ directly use the direct current of solar photovoltaic assembly output to supply with DC load, and AC load is still used the civil power input, crosses meaning and need not complicated inverter, and circuit conversion efficient is higher, has improved the luminous energy overall utilization rate of solar energy system.
⑶ controller for solar has increased photovoltaic module open circuit voltage, short circuit current measurement function on the basis of the disturbance observation of traditional controller for solar, can locate fast the maximum power point of solar panel, avoids the drift in the tracing process.
⑷ equalizer can dynamically be adjusted the input power on every road according to the difference of input power, guarantees that DC load is operated in stable state.
⑸ controller for solar can also be batteries charging except having the maximum power tracing function, and can be according to the switching charged state of the condition intelligent of battery pack, floating charge, all fills.
⑹ have the remote real-time monitoring function, can be with running status and each important parameter by wireless mode remote transmission to server, and at the server every form of production and warning message, for modern management and operation maintenance are provided convenience.
⑺ use GPRS/3G as the means of remote data transmission, need not to set up voluntarily transmission channel, easy to use, operation cost is low, and can realize the real-time Transmission of data, and reliability is high.
In the solar energy base station electric power system of the luminous energy of above-described embodiment and mains hybrid, civil power, the power supply of light energy complementary base station provide, need not wind energy, solar hybrid generation from netting wind-driven generator and the high capacity cell that uses in the base station, need not inverter, efficiency of energy utilization is higher, and disposable input is low; And the solar energy base station electric power system operation of this luminous energy and mains hybrid is not subjected to the restriction of natural conditions, can guarantee communication system operation steady in a long-term.
In the solar energy base station electric power system of the luminous energy of above-described embodiment and mains hybrid, the electric energy of civil power, solar hybrid generation base station input or take civil power as main, solar power generation is auxiliary.Just utilize solar power generation to substitute the civil power input of part, because critical piece in the solar energy system, the life-span of photovoltaic module can be up to 25 years, and solar energy is the natural resources of taking from the Nature, thereby greatly reduce the electric cost of operator.The solar energy base station electric power system of this luminous energy and mains hybrid is adapted at accounting for using in the base station total amount overwhelming majority's of telecom operators the base station, cities and towns and promotes, and greatly alleviates the economize on electricity pressure of operator.
It should be noted that at last: the above only is the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment the present invention is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the solar energy base station electric power system of a luminous energy and mains hybrid, it is characterized in that, the mains-supplied branch road and the luminous energy power supply branch road that comprise cooperating, be connected with luminous energy with described mains-supplied branch road that branch road is connected respectively and be used for coordinating the equalizer that mains-supplied branch road and luminous energy power supply branch road carry out work, and be connected with luminous energy with described equalizer that branch road is connected respectively and for the remote wireless monitoring module of remote monitoring.
2. the solar energy base station electric power system of luminous energy according to claim 1 and mains hybrid, it is characterized in that, described mains-supplied branch road, comprise the AC power distribution cabinet/AC distribution panel and the Switching Power Supply that are connected to successively described equalizer, be connected to respectively interchange input module and the oil machine input module of described AC power distribution cabinet/AC distribution panel, be connected to the battery pack between luminous energy power supply branch road and the Switching Power Supply, be connected to the AC load of AC power distribution cabinet/AC distribution panel output, and the DC load that is connected to the equalizer output.
3. the solar energy base station electric power system of luminous energy according to claim 2 and mains hybrid is characterized in that, described luminous energy power supply branch road comprises the photovoltaic module and the controller for solar that are connected to successively described battery pack;
The first output of described controller for solar is connected to equalizer, and the second output is connected to the remote wireless monitoring module by communication bus; The output of described remote wireless monitoring module is connected to equalizer by communication bus.
4. the solar energy base station electric power system of luminous energy according to claim 3 and mains hybrid is characterized in that, described communication bus comprises among RS482 or the RS232 any one.
5. the solar energy base station electric power system of each described luminous energy and mains hybrid is characterized in that according to claim 2-4, and described mains-supplied branch road also comprises the charging circuit that is connected between described controller for solar and the battery pack.
6. the solar energy base station electric power system of each described luminous energy and mains hybrid is characterized in that according to claim 1-4, between described remote wireless monitoring module and equalizer, also is provided with GPRS module or 3G module.
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Cited By (7)
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| CN103870935A (en) * | 2014-03-24 | 2014-06-18 | 国家电网公司 | Self-adapting power management system and method |
| CN104728968A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Photovoltaic air conditioning system and control method thereof |
| CN106787644A (en) * | 2016-12-16 | 2017-05-31 | 上海传英信息技术有限公司 | Power-supply management system and its power supply method |
| CN110912141A (en) * | 2019-10-18 | 2020-03-24 | 苏州浪潮智能科技有限公司 | Data center power distribution system and method |
| CN114867087A (en) * | 2022-04-24 | 2022-08-05 | 江苏巨天新能源有限公司 | Intelligent solar equipment supports uses governing system |
| CN117353360A (en) * | 2023-12-06 | 2024-01-05 | 广东省锐驰新能源科技有限公司 | Energy storage battery power supply system applied to communication base station, BMS system and method |
| CN117955164A (en) * | 2024-03-26 | 2024-04-30 | 南京赤勇星智能科技有限公司 | Photovoltaic superposition control system of 5G integrated intelligent power cabinet |
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| CN104728968A (en) * | 2013-12-24 | 2015-06-24 | 珠海格力电器股份有限公司 | Photovoltaic air conditioning system and control method thereof |
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| CN114867087A (en) * | 2022-04-24 | 2022-08-05 | 江苏巨天新能源有限公司 | Intelligent solar equipment supports uses governing system |
| CN114867087B (en) * | 2022-04-24 | 2023-03-10 | 江苏巨天新能源有限公司 | Intelligent adjusting method for supporting solar equipment |
| CN117353360A (en) * | 2023-12-06 | 2024-01-05 | 广东省锐驰新能源科技有限公司 | Energy storage battery power supply system applied to communication base station, BMS system and method |
| CN117353360B (en) * | 2023-12-06 | 2024-03-26 | 广东省锐驰新能源科技有限公司 | Energy storage battery power supply system applied to communication base station, BMS system and method |
| CN117955164A (en) * | 2024-03-26 | 2024-04-30 | 南京赤勇星智能科技有限公司 | Photovoltaic superposition control system of 5G integrated intelligent power cabinet |
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Application publication date: 20130403 |