CN204304495U - A kind of photovoltaic intelligent electricity generation system possessing second function - Google Patents
A kind of photovoltaic intelligent electricity generation system possessing second function Download PDFInfo
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- CN204304495U CN204304495U CN201420713439.4U CN201420713439U CN204304495U CN 204304495 U CN204304495 U CN 204304495U CN 201420713439 U CN201420713439 U CN 201420713439U CN 204304495 U CN204304495 U CN 204304495U
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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 utility model relates to technical field of photovoltaic power generation, particularly relates to a kind of photovoltaic intelligent electricity generation system possessing second function.It comprises supply network, load, mains supply, photovoltaic power supply system, energy-storage system and diesel oil electric power system, also comprise the intelligent controller be connected with supply network, intelligent controller comprises the signal acquisition circuit module, intelligent control circuit module, communication management module and the energy management module that connect successively, the input of signal acquisition circuit module is connected with supply network, and the output of energy management module is connected with supply network.Present invention greatly improves the power supply coverage ratio of the important load of special power supply occasion, meanwhile, make grid-connected photovoltaic power generation system have higher energy utilization rate and service efficiency.And due to the second of photovoltaic power supply system, the frequency of utilization of EPS emergency power supply and diesel engine generator is reduced, effectively saved resource and reduced use cost.
Description
Technical field
The utility model relates to technical field of photovoltaic power generation, particularly relates to a kind of photovoltaic intelligent electricity generation system possessing second function.
Background technology
The energy is the fundamental of human survival and the important substance basis of national economy and social development.Along with the development of economic society, the demand of the energy is increased day by day.And meanwhile, the energy shortage brought due to the conventional energy resource such as coal combustion, oil, environmental pollution and greenhouse effect also can not be ignored.In view of the finiteness of conventional energy resource supply and the increase of environmental protection pressure, fundamentally solve energy crisis, China must make full use of regenerative resource and readjust the energy structure, the sustainable development facilitated economic and social.
In recent years, due to the support of national policy and the raising of national environmental consciousness, China's solar photovoltaic building is integrated to be rapidly developed with generating electricity by way of merging two or more grid systems.The advantage of parallel networking type photovoltaic electricity generation system to save storage battery, and using the energy-storage units of electrical network as oneself.Because storage battery is storing and discharging in the process of electric energy, along with the loss of energy, and the useful life of storage battery is generally only 5 ~ 8 years, and the storage battery scrapped again will to environment.So, save the grid-connected photovoltaic system after storage battery and not only significantly can reduce cost, also substantially increase the reliability of system, there is higher generating efficiency and better environmental-protecting performance.Building and integrated the generating electricity by way of merging two or more grid systems of photovoltaic had many-sided advantage, as: pollution-free, do not need to take expensive soil, reduce construction cost, do not need energy storage devices, avoid or reduce power transmission and distribution loss etc. in the generating of electricity consumption place, good Integrated design can make building cleaner, attractive in appearance, easily by architect, user and the public accept, so development very fast.But grid-connected photovoltaic power generation system has a distinguishing feature: island protect function.Namely when mains failure or when breaking down, even photovoltaic system also must stop generating immediately by day.But, to some occasion as: the special important loads such as hospital, banking system, securities system, telecommunication system, chemical system, electric power system, the railway system, airport must keep continued power.And traditional grid-connected photovoltaic power generation system continues to provide electric power to some special important load when can not ensure at mains failure or break down, that is traditional grid-connected photovoltaic power generation system does not have the function of second.
Utility model content
The purpose of this utility model is to provide a kind of photovoltaic intelligent electricity generation system possessing second function.It puts function under possessing secondary, storage battery can be adopted to power at mains failure or when breaking down, and cut off the power supply of general load, cut off time important load when storage battery power supply is not enough and enable diesel engine generator and power supply is continued to special important load, ensure the normal operation of special important load.
The technical solution of the utility model is: a kind of photovoltaic intelligent electricity generation system possessing second function, comprise supply network, load, mains supply, photovoltaic power supply system, energy-storage system and diesel oil electric power system, described mains supply, photovoltaic power supply system is all connected with supply network with the output of diesel oil electric power system, the output of described supply network is connected with load, also comprise intelligent controller, described intelligent controller comprises the signal acquisition circuit module connected successively, intelligent control circuit module, communication management module and energy management module, the input of described signal acquisition circuit module is connected with supply network, the output of described energy management module is connected with supply network.
Further, also comprise the data acquisition and monitoring module that are connected with supply network, described data acquisition and monitoring module output are connected with display and output module.
Further, also comprise VCC power supply, described VCC power supply is connected with display and output module, signal acquisition circuit module, intelligent control circuit module, communication management module and energy management module.
Further, described photovoltaic power supply system comprises solar cell array and photovoltaic micro inverter, and the output of described solar cell array is connected with supply network by photovoltaic micro inverter.
Further, described energy-storage system comprises storage battery and is connected to the EPS emergency power supply between storage battery and supply network.
Further, described diesel oil electric power system comprises diesel engine generator and ATS automatic switchover system, and described diesel engine generator output is connected with supply network by ATS automatic switchover system.
Further, described load comprises general load, secondary important load and special important load.
The beneficial effects of the utility model are: on traditional supply network, add an intelligent controller, signal acquisition circuit module in intelligent controller gathers the electric power thus supplied of various power supply by supply network, by energy management module according to the electric power thus supplied of mains supply automatically carry out the energy storage of energy-storage system, mains supply and photovoltaic power supply system switching and realize second function when mains supply has a power failure or breaks down by energy-storage system and diesel oil electric power system.Greatly increase the power supply coverage ratio of the important load of special power supply occasion, meanwhile, make grid-connected photovoltaic power generation system have higher energy utilization rate and service efficiency.And due to the second of photovoltaic power supply system, the frequency of utilization of EPS emergency power supply and diesel engine generator is reduced, effectively saved resource and reduced use cost.
Accompanying drawing explanation
Fig. 1 is the utility model model calling schematic diagram;
Fig. 2 is system control process figure;
In figure: 1-photovoltaic power supply system, 2-energy-storage system, 3-diesel oil electric power system, 4-intelligent controller.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Specific embodiment described herein only in order to explain the utility model, and is not used in restriction the utility model.In addition, if below in described each execution mode of the utility model involved technical characteristic do not form conflict each other and just can mutually combine.
Shown in Fig. 1, the utility model comprises supply network, load, mains supply, photovoltaic power supply system 1, energy-storage system 2 and diesel oil electric power system 3, mains supply, photovoltaic power supply system 1 is all connected with supply network with the output of diesel oil electric power system 3, the output of supply network is connected with load, also comprise the data acquisition and monitoring module that are connected with supply network, intelligent controller 4, the output of data acquisition and monitoring module is connected with display and output module, intelligent controller 1 comprises the signal acquisition circuit module connected successively, intelligent control circuit module, communication management module and energy management module, the input of signal acquisition circuit module is connected with supply network, the output of energy management module is connected with supply network.Also comprise VCC power supply, VCC power supply is connected with display and output module, signal acquisition circuit module, intelligent control circuit module, communication management module and energy management module.Wherein, photovoltaic power supply system 1 comprises solar cell array and photovoltaic micro inverter, and the output of solar cell array is connected with supply network by photovoltaic micro inverter.Energy-storage system 2 comprises storage battery and is connected to the EPS emergency power supply between storage battery and supply network.Diesel oil electric power system 3 comprises diesel engine generator and ATS automatic switchover system, and diesel engine generator output is connected with supply network by ATS automatic switchover system.Load comprises general load, secondary important load and special important load.
Intelligent controller is the control core of native system, and it, by the working condition of the various power supply of signal acquisition circuit module acquires, comprises the information such as electric current and voltage.And the data message of intelligent control circuit module Received signal strength Acquisition Circuit module acquires arranges, and carry out Logic judgment according to the control strategy preset, communication management module is issued in execution instruction, communication management module utilizes ICP/IP protocol to upload real time data to energy management module, finally carries out the comprehensive coordination of various energy, distribution and management by energy management module.And data acquisition and monitoring module are monitored in real time to the operation conditions of system and working condition is sent to display and output module, carry out display translation with image and written form, for people carry out identifications monitor.
Be illustrated in figure 2 control flow chart of the present utility model, operation principle of the present utility model is as follows: when mains supply normal power supply, if photovoltaic power supply system 1 generated output is greater than bearing power, intelligent control circuit module sends a signal to energy management module and cuts off civil power input, and surplus power is stored in energy-storage system 2, if when photovoltaic power supply system 1 generated output is less than bearing power, intelligent control circuit module send a signal to energy management module access civil power generate electricity with photovoltaic power supply system 1 together with powering load.When mains failure or when sending fault, first intelligent controller judges whether photovoltaic power supply system 1 generated output can meet bearing power, if can not meet, start EPS emergency power supply immediately to be powered to load by storage battery, intelligent control circuit module sends a signal to the power supply that energy management module cuts off general load.Monitor remaining battery capacity, when reaching the principal capacity ratio of setting, principal is carried out in the power supply that intelligent control circuit module sends a signal to energy management module cut-out time important load simultaneously; When reaching the second capacity ratio of setting, intelligent control circuit module sends a signal to energy management module cut-out storage battery and carries out second to the power supply of special important load, ATS automatic switchover system is switched to diesel engine generator immediately simultaneously, switching time is Millisecond, and diesel engine generator starts immediately wants load supplying for extra heavy.When line voltage recovers normally to work, intelligent control circuit module sends signal and performs automatic shutdown operation to energy management module to diesel engine generator ATS automatic switchover system and EPS emergency power supply, performs the conversion operations by mains supply and photovoltaic power supply system simultaneously.
The above; be only embodiment of the present utility model, it should be pointed out that any those of ordinary skill in the art are in the technical scope disclosed by the utility model; the change that can expect easily or replacement, all should be encompassed within protection range of the present utility model.
Claims (7)
1. one kind possesses the photovoltaic intelligent electricity generation system of second function, comprise supply network, load, mains supply, photovoltaic power supply system, energy-storage system and diesel oil electric power system, described mains supply, photovoltaic power supply system is all connected with supply network with the output of diesel oil electric power system, the output of described supply network is connected with load, it is characterized in that: also comprise intelligent controller, described intelligent controller comprises the signal acquisition circuit module connected successively, intelligent control circuit module, communication management module and energy management module, the input of described signal acquisition circuit module is connected with supply network, the output of described energy management module is connected with supply network.
2. a kind of photovoltaic intelligent electricity generation system possessing second function as claimed in claim 1, it is characterized in that: also comprise the data acquisition and monitoring module that are connected with supply network, described data acquisition and monitoring module output are connected with display and output module.
3. a kind of photovoltaic intelligent electricity generation system possessing second function as claimed in claim 1, it is characterized in that: also comprise VCC power supply, described VCC power supply is connected with display and output module, signal acquisition circuit module, intelligent control circuit module, communication management module and energy management module.
4. a kind of photovoltaic intelligent electricity generation system possessing second function as claimed in claim 1, it is characterized in that: described photovoltaic power supply system comprises solar cell array and photovoltaic micro inverter, the output of described solar cell array is connected with supply network by photovoltaic micro inverter.
5. a kind of photovoltaic intelligent electricity generation system possessing second function as claimed in claim 1, is characterized in that: described energy-storage system comprises storage battery and is connected to the EPS emergency power supply between storage battery and supply network.
6. a kind of photovoltaic intelligent electricity generation system possessing second function as claimed in claim 1, it is characterized in that: described diesel oil electric power system comprises diesel engine generator and ATS automatic switchover system, described diesel engine generator output is connected with supply network by ATS automatic switchover system.
7. a kind of photovoltaic intelligent electricity generation system possessing second function as claimed in claim 1, is characterized in that: described load comprises general load, secondary important load and special important load.
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| CN201420713439.4U CN204304495U (en) | 2014-11-24 | 2014-11-24 | A kind of photovoltaic intelligent electricity generation system possessing second function |
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| CN201420713439.4U CN204304495U (en) | 2014-11-24 | 2014-11-24 | A kind of photovoltaic intelligent electricity generation system possessing second function |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935009A (en) * | 2015-06-24 | 2015-09-23 | 国网湖南省电力公司湘潭供电分公司 | Microgrid operation control method and system containing photovoltaic and fuel gas power generation |
| CN106059063A (en) * | 2016-07-28 | 2016-10-26 | 钟燏 | Emergency power supply for large stores |
| CN107344537A (en) * | 2017-06-20 | 2017-11-14 | 陕西铁路工程职业技术学院 | Rail truck electric power system based on photovoltaic generation |
| CN108736568A (en) * | 2018-07-06 | 2018-11-02 | 武汉普天洲际宜通电源有限公司 | A kind of lower controller for electric consumption |
| CN110138051A (en) * | 2019-06-17 | 2019-08-16 | 中国铁塔股份有限公司 | A kind of cell managing device, system and control method |
-
2014
- 2014-11-24 CN CN201420713439.4U patent/CN204304495U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935009A (en) * | 2015-06-24 | 2015-09-23 | 国网湖南省电力公司湘潭供电分公司 | Microgrid operation control method and system containing photovoltaic and fuel gas power generation |
| CN104935009B (en) * | 2015-06-24 | 2017-05-10 | 国网湖南省电力公司湘潭供电分公司 | Microgrid operation control method and system containing photovoltaic and fuel gas power generation |
| CN106059063A (en) * | 2016-07-28 | 2016-10-26 | 钟燏 | Emergency power supply for large stores |
| CN106059063B (en) * | 2016-07-28 | 2018-08-03 | 钟燏 | A kind of megastore's emergency power supply |
| CN107344537A (en) * | 2017-06-20 | 2017-11-14 | 陕西铁路工程职业技术学院 | Rail truck electric power system based on photovoltaic generation |
| CN108736568A (en) * | 2018-07-06 | 2018-11-02 | 武汉普天洲际宜通电源有限公司 | A kind of lower controller for electric consumption |
| CN108736568B (en) * | 2018-07-06 | 2024-04-26 | 武汉普天洲际宜通电源有限公司 | Power-off control device |
| CN110138051A (en) * | 2019-06-17 | 2019-08-16 | 中国铁塔股份有限公司 | A kind of cell managing device, system and control method |
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