CN102545299B - Solar photovoltaic power generation system and power supply method for communication - Google Patents
Solar photovoltaic power generation system and power supply method for communication Download PDFInfo
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- CN102545299B CN102545299B CN201110077732.7A CN201110077732A CN102545299B CN 102545299 B CN102545299 B CN 102545299B CN 201110077732 A CN201110077732 A CN 201110077732A CN 102545299 B CN102545299 B CN 102545299B
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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
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
Abstract
The invention provides a solar photovoltaic power generation system and a power supply method for communication, which relate to the technology of solar photovoltaic power generation. A solar photovoltaic power generation system embedded in a power supply system is provided. The power supply system comprises electricity load and a switch power supply which supplies electric supply to the electricity load. The switch power supply comprises a solar panel used for receiving solar energy, a solar converter connected with the solar panel and the electricity load, and the solar converter is connected with the switch power supply in parallel. The solar converter comprises a power module and a monitoring/controlling module connected with the power module. The power module converts received energy of the solar panel into electric energy and provides the electric energy for the electricity load. The monitoring/controlling module controls output voltage of the power module to be higher than output voltage of the switch power supply and controls the power of the power module to be higher than rated peak power of the solar panel, and actual output peak power of the solar panel is smaller than the whole power of the electricity load. The solar photovoltaic power generation can improve utilization ratio of solar energy and reduce investment cost.
Description
Technical field
The present invention relates to solar photovoltaic technology, particularly relate to solar photovoltaic generation system and method for supplying power to for a kind of communication.
Background technology
Energy-saving and emission-reduction are China's fundamental state policies, and the power-saving technology application content of communications field throttle style is abundanter, but the power-saving technology of the mode of increasing income is very rare.How at communications field applied solar energy generating energy, to be one and to be worth the new problem of exploring.It is costly that traditional application mode of utilizing solar power generation to ensure as the station owner of communication bureau generating and back-up source is paid, need to be equipped with solar panel, power-supply device, the storage battery more much bigger than the daily need of traffic load power, rate of return on investment is very low, do not possess investment value, and a kind of any special measures only ensureing as inclement condition area communication.Solar power generation can not become a kind of rational choice of communications field energy-saving and emission-reduction always.
Summary of the invention
The object of the invention is to propose solar photovoltaic generation system and method for supplying power to for a kind of communication, improve the utilization ratio of solar energy.
For achieving the above object, the invention provides a kind of solar photovoltaic generation system of the embedding power-supply system for communication equipment, power-supply system comprises by electric loading, and civil power is supplied with to the Switching Power Supply by electric loading, comprise: solar panels, for receiving solar energy; Solar converter, with solar panels with by electric loading, be connected, with switch power parallel, solar converter comprises: power model is that electric energy offers by electric loading by the power conversion of the solar panels that receive; Monitoring/control module, be connected with power model, the output voltage of power ratio control module is higher than the output voltage of Switching Power Supply, and the power of power ratio control module is greater than the peak power rating of solar panels, and the actual output peak power of solar panels is less than the gross power by electric loading.
In one embodiment, when power-supply system exceeds the interval work of normal working voltage, monitoring/control module power ratio control module stops output voltage.
In one embodiment, solar photovoltaic generation system, also comprises: lightning arrester, is connected to input side and the outlet side of solar converter.
In one embodiment, monitoring/control module is monitored and is added up the generating electric weight of solar photovoltaic generation system and generating duration.
For achieving the above object, the present invention also provides a kind of method of supplying power to of solar photovoltaic generation system of the embedding power-supply system for communication equipment, comprising: by the power conversion of the solar panels that receive, be that electric energy offers by electric loading; Control the output voltage of solar converter higher than the output voltage of the Switching Power Supply of power-supply system; The power of controlling solar converter is greater than the peak power rating of solar panels, and the actual output peak power of solar panels is less than the gross power by electric loading.
In one embodiment, method of supplying power to also comprises: when power-supply system exceeds the interval work of normal working voltage, control solar converter and stop output voltage.
In one embodiment, method of supplying power to also comprises: the generating electric weight of solar photovoltaic generation system and generating duration are monitored and added up.
Based on technique scheme, according to an aspect of the present invention, based on having, solar energy makes full use of solar energy, part is carried out embedded solar energy power generating by the dynamic supplementary operation principle of civil power not.With respect to without civil power, rely on mode or civil power and the solar power generation of solar power generation completely and deposit, but when solar power generation power is less than bearing power, all have mains-supplied, when solar power generation power is greater than bearing power, all have solar powered mode, the solar energy power generating of the embodiment of the present invention is higher to the utilization ratio of solar energy, cost of investment is lower.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further explanation of the present invention, forms a part of the present invention.Schematic description and description of the present invention is only for explaining the present invention, but do not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation with solar photovoltaic generation system according to the communication of the embodiment of the present invention.
Fig. 2 is according to the structural representation of the application scenarios one of the embodiment of the present invention.
Fig. 3 is according to the structural representation of the application scenarios two of the embodiment of the present invention.
Fig. 4 is the flow chart with the method for supplying power to of solar photovoltaic generation system according to the communication of the embodiment of the present invention.
Embodiment
With reference to the accompanying drawings the present invention is described in more detail, exemplary embodiment of the present invention is wherein described.In the accompanying drawings, identical label represents identical or similar assembly or element.
Fig. 1 is according to the structural representation of the solar photovoltaic generation system 120 of the embedding power-supply system 110 of the embodiment of the present invention.Wherein, power-supply system 110 comprises Switching Power Supply 112 and by electric loading 114.Solar photovoltaic generation system 120 comprises solar panels 102, solar converter 122.For instance, solar photovoltaic generation system 120 can embed the power-supply system 110 of the communication site that has possessed mains-supplied and backup battery guarantee, the solar photovoltaic generation system 120 generating output 48V grade direct voltages that embed, with original Switching Power Supply 112 output 48V grade direct voltage parallel operations.
Switching Power Supply 112 can be supplied with civil power by electric loading 114.
Solar panels 102, for receiving solar energy.
Solar converter 122, with solar panels 102, be connected by electric loading 114, in parallel with Switching Power Supply 112.Solar converter 122 can comprise: power model 124 and monitoring/control module 126.
Power model 124, for being that electric energy offers by electric loading 114 by the power conversion of the solar panels that receive 102.
Monitoring/control module 126, is connected with power model 124, and the output voltage of power ratio control module 124 is higher than the output voltage of Switching Power Supply 112.Power model 124 output voltages can be in the interval arbitrfary point of normal working voltage, output voltage can higher than the output voltage of Switching Power Supply 112 (as exceeding 0.5V), make solar power generation output preferential, guarantee that the power whenever solar power generation produces can all use.Solar photovoltaic generation system 120 can be simultaneously jointly for powering by electric loading 114 with power-supply system 110, the common power requirement meeting by electric loading 114.Continuous variation due to solar energy, can be according to the output voltage of power model 124 with the electricity consumption requirement of electric loading 114, determine the output voltage of Switching Power Supply 112, by the control higher than the output voltage of Switching Power Supply 112 to the output voltage of power model 124, assurance solar power generation is preferentially supplied with by electric loading 114, and insufficient section is supplemented by Switching Power Supply 112.
Monitoring/control module 126 can also power ratio control module 124 rated power be greater than the peak power rating of solar panels 102, and the actual output peak power of solar panels 102 is less than the gross power by electric loading 114, thereby the power that solar photovoltaic generation system 120 is sent is all fully used.
In one embodiment, when power-supply system 110 exceeds the interval work of normal working voltage, monitoring/control module 126 power ratio control modules 124 stop output voltage.Such as, when the busbar voltage of the power-supply system 110 being embedded into is lower than 45V (and being greater than principal setting voltage) or higher than 55V time, monitoring/control module 126 power ratio control modules 124 stop output, until busbar voltage returns to 49V or return to the normal operating voltage of 54.5V from high pressure interval from low pressure.Like this, can guarantee can not increase because of the embedding of solar photovoltaic generation system 120 probability of malfunction by electric loading 114 (as traffic load).
In one embodiment, monitoring/control module 126 can be monitored and add up the generating electric weight of solar photovoltaic generation system 120 and generating duration.Such as, to solar power generation electric weight, generating duration parameters all respectively day by day, month by month, monitor year by year, measure.According to statistics, can rationally utilize solar energy resources, adjust flexibly the configuration of solar photovoltaic generation system 120, such as embedding or remove solar photovoltaic generation system 120 from power-supply system 110.
In one embodiment, solar photovoltaic generation system 120 can also comprise lightning arrester, is connected to input side and the outlet side of solar converter 122.Such as, the input side of solar converter 122 and outlet side all can be installed 40KA grade lightning arrester, avoid entering among the power-supply system 110 being embedded into because outdoor solar energy system draws thunder, the probability that causes power-supply system 110 failure rates that are embedded into increase.
In one embodiment, solar photovoltaic generation system 120 can not bear standby ensure power supply, separately for electric loading 114 power supplies with separately for functions such as charge in batteries, to improve the utilization rate of solar energy.It is load store electrical energy that solar photovoltaic generation system 120 does not need additionally to increase storage battery yet, and while preparing against without the sun or solar energy deficiency, powering load is used.
Solar photovoltaic generation system 120 and the former power-supply system 110 being embedded into can be respectively by control module independence control work separately, avoid occurring the phenomenon of managerial confusion, cause increase probability of malfunction.
Fig. 2 is according to the structural representation of the application scenarios one of the embodiment of the present invention.Application scenarios one is that internally-arranged type solar photovoltaic generation system is embedded into the scene in the original power-supply system in communication site, comprising: Switching Power Supply 202, input and output mains switch 204, communication main equipment module 206, solar converter 208, turnover drum 210, solar panels 212.Wherein, solar converter 208 is built in integration apparatus case.
Fig. 3 is according to the structural representation of the application scenarios two of the embodiment of the present invention.Application scenarios two is that externally positioned type solar photovoltaic generation system is embedded into the scene in the original power-supply system in communication site, comprising: Switching Power Supply 302, input and output mains switch 304, communication main equipment module 306, solar converter 308, turnover drum 310, solar panels 312.Wherein, solar converter 308 is placed on integration apparatus case as device independently.
Can be according to local solar energy resources situation, embed or remove solar photovoltaic generation system fast.Both can adopt sun-generated electric power case as embedded in the externally positioned type of Fig. 3, also can adopt the internally-arranged type sun-generated electric power case as Fig. 2, can the different application scenarios of flexible adaptation.
Embodiments of the invention can be applied to small-power communication site, and application is convenient, effective, such as mobile base station, optical fiber access FTTx website, radio frequency fiber optic stretch station RRU, video surveillance point etc.
Fig. 4 is the flow chart with the method for supplying power to 400 of solar photovoltaic generation system according to the communication of the embodiment of the present invention.
In step 402, by the power conversion of the solar panels that receive, be that electric energy offers and uses electric loading.
In step 404, control the output voltage of solar converter higher than the output voltage of the Switching Power Supply of power-supply system, make solar power generation output preferential, guarantee that the power whenever solar power generation produces can all use.
In step 406, the power of controlling solar converter is greater than the peak power rating of solar panels, and the actual output peak power of solar panels is less than the gross power by electric loading, thereby the power that solar photovoltaic generation system sends is all fully used.
In one embodiment, when power-supply system exceeds the interval work of normal working voltage, can control solar converter and stop output voltage.That is to say, when power-supply system output busbar voltage exceeds outside normal working voltage scope, solar energy stops output, and guaranteeing can not increase because of the embedding of solar power system probability of malfunction, and then realizes the protection to traffic load and storage battery.
In one embodiment, the generating electric weight of solar photovoltaic generation system and generating duration are monitored and added up.According to statistics, can rationally utilize solar energy resources, adjust flexibly the configuration of solar photovoltaic generation system.
According to an aspect of the present invention, based on having, solar energy makes full use of solar energy, part is carried out embedded solar energy power generating by the dynamic supplementary operation principle of civil power not.With respect to without civil power, rely on mode or civil power and the solar power generation of solar power generation completely and deposit, but when solar power generation power is less than bearing power, all have mains-supplied, when solar power generation power is greater than bearing power, all have solar powered mode, the solar energy power generating of the embodiment of the present invention is higher to the utilization ratio of solar energy, cost of investment is lower.
Description of the invention provides for example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment with various modifications that the present invention's design is suitable for special-purpose.
Claims (7)
1. for the solar photovoltaic generation system of the embedding power-supply system of communication equipment, described power-supply system comprises by electric loading, and civil power is supplied with to the described Switching Power Supply by electric loading, it is characterized in that, described solar photovoltaic generation system comprises:
Solar panels, for receiving solar energy; With
Solar converter, is connected by electric loading with described with described solar panels, and with described switch power parallel, described solar converter comprises:
Power model is that electric energy offers the described electric loading of using by the power conversion of the described solar panels that receive;
Monitoring/control module, be connected with described power model, control the output voltage of described power model higher than the output voltage of described Switching Power Supply, the power of controlling described power model is greater than the peak power rating of described solar panels, and the actual output peak power of described solar panels is less than the described gross power by electric loading;
Described solar photovoltaic generation system is not born standby and is ensured power supply, is not separately described electricity consumption load supplying, is not charge in batteries yet.
2. solar photovoltaic generation system according to claim 1, is characterized in that, when described power-supply system exceeds the interval work of normal working voltage, described monitoring/control module is controlled described power model and stopped output voltage.
3. solar photovoltaic generation system according to claim 1, is characterized in that, also comprises:
Lightning arrester, is connected to input side and the outlet side of described solar converter.
4. solar photovoltaic generation system according to claim 1, is characterized in that, described monitoring/control module is monitored and added up the generating electric weight of described solar photovoltaic generation system and generating duration.
5. the method for supplying power to for the solar photovoltaic generation system of the embedding power-supply system of communication equipment, it is characterized in that, described solar photovoltaic generation system comprises solar panels and solar converter, described solar photovoltaic generation system is not born standby and is ensured power supply, it is not separately electricity consumption load supplying, also be not charge in batteries, described method comprises:
By the power conversion of the solar panels that receive, be that electric energy offers by electric loading;
Control the output voltage of solar converter higher than the output voltage of the Switching Power Supply of described power-supply system;
The power of controlling described solar converter is greater than the peak power rating of described solar panels, and the actual output peak power of described solar panels is less than the described gross power by electric loading.
6. method of supplying power to according to claim 5, is characterized in that, also comprises:
When described power-supply system exceeds the interval work of normal working voltage, control described solar converter and stop output voltage.
7. method of supplying power to according to claim 5, is characterized in that, also comprises:
The generating electric weight of described solar photovoltaic generation system and generating duration are monitored and added up.
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| CN201110077732.7A CN102545299B (en) | 2010-12-08 | 2011-03-30 | Solar photovoltaic power generation system and power supply method for communication |
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| CN201010579788 | 2010-12-08 | ||
| CN201010579788.8 | 2010-12-08 | ||
| CN201110077732.7A CN102545299B (en) | 2010-12-08 | 2011-03-30 | Solar photovoltaic power generation system and power supply method for communication |
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| CN102545299B true CN102545299B (en) | 2014-04-09 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103023123A (en) * | 2012-12-26 | 2013-04-03 | 孙健 | Energy saving device for directly utilizing solar photovoltaic power to drive computer server |
| CN103730950B (en) * | 2013-12-27 | 2016-10-05 | 国家电网公司 | The solar power supply system of equipment is expanded for signal |
| CN110707679B (en) * | 2019-11-22 | 2021-05-14 | 中国联合网络通信集团有限公司 | Voltage control method and photovoltaic power supply device and system |
| CN110768359B (en) * | 2019-11-22 | 2021-11-19 | 中国联合网络通信集团有限公司 | Voltage control method and photovoltaic power supply device and system |
| CN111181237A (en) * | 2020-01-07 | 2020-05-19 | 中国联合网络通信集团有限公司 | Photovoltaic control method, photovoltaic power supply device and system |
| CN114884197B (en) * | 2022-07-05 | 2022-09-20 | 衡水识达科技有限公司 | Outdoor photovoltaic balanced power supply system |
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| CN201332284Y (en) * | 2008-12-30 | 2009-10-21 | 周静 | Solar energy and utility power complementation power supply unit |
| CN201549892U (en) * | 2009-11-17 | 2010-08-11 | 中国移动通信集团公司 | DC power supply control system |
| CN201623666U (en) * | 2010-03-19 | 2010-11-03 | 薛亮 | Solar power supply system of communication equipment |
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| JP5225166B2 (en) * | 2009-03-18 | 2013-07-03 | 株式会社東芝 | Power system monitoring system and power system monitoring method |
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| CN201332284Y (en) * | 2008-12-30 | 2009-10-21 | 周静 | Solar energy and utility power complementation power supply unit |
| CN201549892U (en) * | 2009-11-17 | 2010-08-11 | 中国移动通信集团公司 | DC power supply control system |
| CN201623666U (en) * | 2010-03-19 | 2010-11-03 | 薛亮 | Solar power supply system of communication equipment |
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