CN103427443B - A kind of generation of electricity by new energy electric power system based on many electric intelligents tuner - Google Patents
A kind of generation of electricity by new energy electric power system based on many electric intelligents tuner Download PDFInfo
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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
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The invention belongs to field of new energy power, be specifically related to a kind of generation of electricity by new energy electric power system based on many electric intelligents tuner.By the structure making photovoltaic module array directly be connected with intelligent allocation device, save external combining inverter equipment and photovoltaic controller and external dc relative to prior art and connect control device, decrease great amount of investment, simplify the quantities of system and the system integration and installation.Owing to have employed plurality of groups of storage batteries system construction, from net environment, power supply and the electric power storage concurrent working of photovoltaic electric power can be made; In grid-connected environment, can make photovoltaic electric power power supply and to the concurrent working of electrical network feed, avoid the waste of photovoltaic electric power, at utmost optimize and improve the utilance of photovoltaic electric power.By arranging ac bus and being also provided with DC bus and direct current scheduling module while exchanging scheduling module, make many electrical path that System's composition is controlled, make system achieve generating better with load in conjunction with common composition system; Photovoltaic electric power direct-furnish load, namely sends out and namely uses; Reduce electricity and the link of accumulate and electric discharge; Dissolve nearby and share, reducing electric power conveying and the link changed; Utilize power electronic technology to carry out automatic regulation, optimize power structure and mode, save electric cost.
Description
Technical field
The invention belongs to field of new energy power, be specifically related to a kind of generation of electricity by new energy electric power system based on many electric intelligents tuner.
Background technology
Current, world community government all payes attention to and greatly develops new forms of energy electric power, and its strategic importance is well-known, and photovoltaic electric power development is the important component part of new forms of energy electric power.The advantage of photovoltaic electric power is exactly that photovoltaic is ubiquitous, inexhaustible, clean environment firendly; The shortcoming of photovoltaic electric power is unsteadiness and intermittence, when being directly load supplying, usually can not meet the demand of load stabilization electricity consumption, and its energy density low, have a very wide distribution, centrally connected power supply investment is large, and generating power supplying efficiency is low.
Therefore to develop new forms of energy photovoltaic electric power, just must solve the stability of generating power supply and the distributed power generation technology of powering and mode, namely send out electricity generating and supplying system namely.To this, global expert, on the basis of research practice for many years, indicates technique direction and target to new forms of energy power generation supply power mode, that is: generating is combined with load and jointly forms system; Photovoltaic electric power direct-furnish load, namely sends out and namely uses; Reduce electricity and the link of accumulate and electric discharge; Dissolve nearby and share, reducing electric power conveying and the link changed; Utilize power electronic technology to carry out automatic regulation, optimize power structure and mode, save electric cost.
At present, the reasonable scheme of prior art is the new forms of energy photovoltaic electric power electricity generating and supplying system based on two-way inverter, and its system construction and electrical path schematic diagram are as shown in Figure 1.The technical characterstic of this system and structure is that photovoltaic electric power is reverse into alternating current and accesses two-way inverter and be load supplying by the interchange scheduling module in two-way inverter, because photovoltaic electric power is unstable, the requirement of general load needs stable power-supplying can not be met, for this reason, the power inverter of battery stores is become alternating current by this technology, alternating current simultaneously by exchanging scheduling module and photovoltaic electric power carries out allocating that to form stable electric power be load supplying, overcome the defect that generating power supply technique mode that the first electric power storage of routine techniques system powers again is brought, thus achieve the mode that photovoltaic electric power is directly load supplying, improve efficiency.But, prior art shortcoming is also fairly obvious, that is:
The system construction of prior art and principle of work and power schematic block diagram as shown in Figure 2, when utilizing photovoltaic power supply, also needing increasing to join combining inverter or increasing and join photovoltaic controller and external dc and connect control device, adding great amount of investment.
Further, it is be reverse into alternating current that increasing joins combining inverter by photovoltaic electric power, is traditional combining inverter technical approach; Shortcoming is that when not having AC power to input, photovoltaic generating system can not be powered by feed, even if sunny, component palette generates electricity, and system can not be powered to load by feed, and the photovoltaic generation electric power system that can not be made up of two-way inverter uses from net is independent.
Prior art adopts single batteries to connect, and the uncertainty by photovoltaic unstable power and user load electricity consumption affects, and discharge and recharge is alternately frequent, not by Systematical control, can not complete due reasonable charge and discharge process, have a strong impact on the life of storage battery.
And, the electric power of storage battery is one of major way of stable photovoltaic power supply, its power source preferably remaining electricity of photovoltaic stores and obtains, but although prior art is photovoltaic by the AC/DC module in two-way inverter is that the photovoltaic electric power exchanged goes back to direct current power again and carries out electric power storage by inversion, because photovoltaic is first converted to interchange, when for charge in batteries electric power storage, direct current must be converted to again, such twice conversion not only increases combining inverter equipment investment cost, too increases the photovoltaic electric power loss of more than 10%.
Because prior art and scheme are under being operated in exchange way, can only be make something perfect even more perfect, can not be timely, that is: electrical network (or AC power have the ability electricity power supply time, its external photovoltaic grid-connected power generation device start power supply; When electrical network or AC power have a power failure (at this moment, may be that user is when more needing electricity), even if now photovoltaic generation can generate electricity, also refuse because of the power failure of former AC power to power, and wasted send out photovoltaic electric power.
Further, if electrical network is as AC power, need the power department accreditation ability having electrical network grid-connected, can not user grid-connected voluntarily, and electrical network itself can be limit because of technology and electric power system ability, has strict requirement and restriction to grid-connected, the user greatly restricting prior art systems is used.
For prior art defect and fully in conjunction with the characteristic that photovoltaic electric power is powered with unstable new forms of energy electric power and electric power storage, the present invention proposes a kind of a kind of new forms of energy power technology scheme of the generation of electricity by new energy electric power system based on many electric intelligents tuner.
Summary of the invention
In order to overcome the shortcomings and deficiencies that prior art exists, realizing more succinct, reducing cost of investment; More efficient, reduce power consumption; High performance-price ratio New-energy power system that is safer, more environmental protection, the present invention proposes a kind of generation of electricity by new energy electric power system based on many electric intelligents tuner.
A kind of generation of electricity by new energy electric power system based on many electric intelligents tuner that the present invention proposes, its system is made up of uncontrollable DC power supply terminal, photovoltaic module array, controllable direct current power supply end, plurality of groups of storage batteries group, alternating current source, generator, electrical network, AC load end and many electric intelligents tuner;
Photovoltaic module array directly connects the uncontrollable DC power supply terminal of many electric intelligents tuner; Plurality of groups of storage batteries group accesses the controllable direct current power supply end of many electric intelligents tuner respectively by group; Generator and electrical network are connected to the alternating current source of many electric intelligents tuner; The AC load end of many electric intelligents tuner connects user load; Its system features is:
Many electric intelligents tuner is regulated and controled module, built-in DC bus and built-in ac bus formed by direct current scheduling module, charge and discharge control module, DC/AC module, AC/DC module, islanding detect module, AC power; And, direct current scheduling module and charge and discharge control model calling, AC/DC model calling direct current scheduling module, and uncontrollable DC power supply terminal connects built-in DC bus by direct current scheduling module, controllable direct current power supply end connects built-in DC bus by direct current scheduling module after connecting charge and discharge control module again; Built-in DC bus is connected with DC/AC module; DC/AC module, built-in ac bus and islanding detect module regulate and control module with AC power respectively and are connected; Built-in ac bus is also connected with alternating current source with islanding detect module;
Its system construction feature is: form multiple power path, comprising: the energizing power path being made up of photovoltaic generation direct-furnish load photovoltaic module array, uncontrollable DC power supply terminal, direct current scheduling module, built-in DC bus, DC/AC module, AC power regulation and control module and AC load end; By plurality of groups of storage batteries group, controllable direct current power supply end, charge and discharge control module, direct current scheduling module, built-in DC bus, DC/AC module, AC power regulates and controls module and AC load end forms the electric energizing power path of benefit; Photovoltaic electric power charging electric power storage electrical path is formed by photovoltaic module array, uncontrollable DC power supply terminal, direct current scheduling module, charge and discharge control module, controllable direct current power supply end and plurality of groups of storage batteries group; By generator and electrical network through alternating current source, built-in ac bus, AC power regulate and control module and AC/DC module, direct current scheduling module, charge and discharge control module, controllable direct current power supply end and plurality of groups of storage batteries group form peak regulation electric power storage and after next choice electricity electrical path; Peak regulation and standby Alternating Current Power Supply electrical path is formed through alternating current source, built-in ac bus, AC power regulation and control module and AC load end by generator and electrical network; Regulate and control module, islanding detect module, alternating current source and electrical network by photovoltaic module array, uncontrollable DC power supply terminal, direct current scheduling module, built-in DC bus, DC/AC module, AC power and to form more than photovoltaic electricity to the electrical path of electrical network feed.
The system of intelligent allocation device of the present invention and uniqueness and structure, photovoltaic module array is directly connected with intelligent allocation device, save external combining inverter equipment and photovoltaic controller and external dc and connect control device, decrease great amount of investment, simplify the quantities of system and the system integration and installation.Meanwhile, owing to have employed plurality of groups of storage batteries system construction, power supply and the electric power storage concurrent working of photovoltaic electric power can be made, avoid the waste of photovoltaic electric power.
System of the present invention and structure are by arranging ac bus and being also provided with DC bus and direct current scheduling module while exchanging scheduling module, make many electrical path that System's composition is controlled, make system achieve generating better with load in conjunction with common composition system; Photovoltaic electric power direct-furnish load, namely sends out and namely uses; Reduce electricity and the link of accumulate and electric discharge; Dissolve nearby and share, reducing electric power conveying and the link changed; Utilize power electronic technology to carry out automatic regulation, optimize power structure and mode, save electric cost.
Accompanying drawing explanation
Fig. 1 is system construction and the electrical path schematic diagram of prior art.
Fig. 2 is system construction and the principle of work and power schematic block diagram of prior art.
Fig. 3 system construction of the present invention and electrical path schematic diagram.
Fig. 4 is system construction of the present invention and principle of work and power schematic block diagram.
Embodiment
As examples of implementation, by reference to the accompanying drawings a kind of generation of electricity by new energy electric power system based on many electric intelligents tuner is described, but technology of the present invention and scheme are not limited to the content that the present embodiment provides.
Fig. 3 gives system construction based on the generation of electricity by new energy electric power system of many electric intelligents tuner and electrical path schematic diagram, and Fig. 4 gives system construction based on the generation of electricity by new energy electric power system of many electric intelligents tuner and principle of work and power schematic block diagram.
As shown in the figure, based on a generation of electricity by new energy electric power system for many electric intelligents tuner, its system is made up of uncontrollable DC power supply terminal (9), photovoltaic module array (10), controllable direct current power supply end (11), plurality of groups of storage batteries group (12), alternating current source (13), generator (14), electrical network (15), AC load end (16) and many electric intelligents tuner (1);
Photovoltaic module array (10) directly connects the uncontrollable DC power supply terminal (9) of many electric intelligents tuner (1); Plurality of groups of storage batteries group (12) accesses the controllable direct current power supply end (11) of many electric intelligents tuner (1) respectively by group; Generator (14) and electrical network (15) are connected to the alternating current source (13) of many electric intelligents tuner (1); The AC load end (16) of many electric intelligents tuner (1) connects user load; Its system features is:
Many electric intelligents tuner (1) is regulated and controled module (106), built-in DC bus (107) and built-in ac bus (108) formed by direct current scheduling module (101), charge and discharge control module (102), DC/AC module (103), AC/DC module (104), islanding detect module (105), AC power; And, direct current scheduling module (101) is connected with charge and discharge control module (102), AC/DC module (104) connects direct current scheduling module (101), and uncontrollable DC power supply terminal (9) connects built-in DC bus (107) by direct current scheduling module (101), controllable direct current power supply end (11) connects built-in DC bus (107) by direct current scheduling module (101) after connecting charge and discharge control module (102) again; Built-in DC bus (107) is connected with DC/AC module (103); DC/AC module (103), built-in ac bus (108) and islanding detect module (105) regulate and control module (106) respectively and are connected with AC power; Built-in ac bus (108) is also connected with alternating current source (13) with islanding detect module (105);
A kind of generation of electricity by new energy electric power system based on many electric intelligents tuner of the present invention, its system construction feature forms multiple power path, comprising: the energizing power path being made up of photovoltaic generation direct-furnish load photovoltaic module array (10), uncontrollable DC power supply terminal (9), direct current scheduling module (101), built-in DC bus (107), DC/AC module (103), AC power regulation and control module (106) and AC load end (16); By plurality of groups of storage batteries group (12), controllable direct current power supply end (11), charge and discharge control module (102), direct current scheduling module (101), built-in DC bus (107), DC/AC module (103), AC power regulates and controls module (106) and AC load end (16) forms the electric energizing power path of benefit; Photovoltaic electric power charging electric power storage electrical path is formed by photovoltaic module array (10), uncontrollable DC power supply terminal (9), direct current scheduling module (101), charge and discharge control module (102), controllable direct current power supply end (11) and plurality of groups of storage batteries group (12); By generator (14) and electrical network (15) through alternating current source (13), built-in ac bus (108), AC power regulate and control module (106) and AC/DC module (104), direct current scheduling module (101), charge and discharge control module (102), controllable direct current power supply end (11) and plurality of groups of storage batteries group (12) forms peak regulation electric power storage and after the electric electrical path of the next choice; Peak regulation and standby Alternating Current Power Supply electrical path is formed through alternating current source (13), built-in ac bus (108), AC power regulation and control module (106) and AC load end (16) by generator (14) and electrical network (15); Regulated and controled module (106), islanding detect module (105), alternating current source (13) and electrical network (15) formed the electrical path of the remaining electricity of photovoltaic to electrical network feed by photovoltaic module array (10), uncontrollable DC power supply terminal (9), direct current scheduling module (101), built-in DC bus (107), DC/AC module (103), AC power.
As mentioned above, the present invention is by a kind of generation of electricity by new energy electric power system based on many electric intelligents tuner, photovoltaic module array is directly connected with intelligent allocation device, save external combining inverter equipment and photovoltaic controller and external dc relative to prior art and connect control device, decrease great amount of investment, simplify the quantities of system and the system integration and installation.
The present invention, owing to have employed plurality of groups of storage batteries system construction, from net environment, can make power supply and the electric power storage concurrent working of photovoltaic electric power; In grid-connected environment, can make photovoltaic electric power power supply and to the concurrent working of electrical network feed, avoid the waste of photovoltaic electric power, at utmost optimize and improve the utilance of photovoltaic electric power.
A kind of generation of electricity by new energy electric power system based on many electric intelligents tuner of the present invention is by arranging ac bus and being also provided with DC bus and direct current scheduling module while exchanging scheduling module, make many electrical path that System's composition is controlled, make system achieve generating better with load in conjunction with common composition system; Photovoltaic electric power direct-furnish load, namely sends out and namely uses; Reduce electricity and the link of accumulate and electric discharge; Dissolve nearby and share, reducing electric power conveying and the link changed; Utilize power electronic technology to carry out automatic regulation, optimize power structure and mode, save electric cost.
Claims (1)
1., based on a generation of electricity by new energy electric power system for many electric intelligents tuner, its system is made up of uncontrollable DC power supply terminal (9), photovoltaic module array (10), controllable direct current power supply end (11), plurality of groups of storage batteries group (12), alternating current source (13), generator (14), electrical network (15), AC load end (16) and many electric intelligents tuner (1); Photovoltaic module array (10) directly connects the uncontrollable DC power supply terminal (9) of many electric intelligents tuner (1); Plurality of groups of storage batteries group (12) accesses the controllable direct current power supply end (11) of many electric intelligents tuner (1) respectively by group; Generator (14) and electrical network (15) are connected to the alternating current source (13) of many electric intelligents tuner (1); The AC load end (16) of many electric intelligents tuner (1) connects user load; Its system features is:
Many electric intelligents tuner (1) is regulated and controled module (106), built-in DC bus (107) and built-in ac bus (108) formed by direct current scheduling module (101), charge and discharge control module (102), DC/AC module (103), AC/DC module (104), islanding detect module (105), AC power; And, direct current scheduling module (101) is connected with charge and discharge control module (102), AC/DC module (104) connects direct current scheduling module (101), and uncontrollable DC power supply terminal (9) connects built-in DC bus (107) by direct current scheduling module (101), controllable direct current power supply end (11) connects built-in DC bus (107) by direct current scheduling module (101) after connecting charge and discharge control module (102) again; Built-in DC bus (107) is connected with DC/AC module (103); DC/AC module (103), built-in ac bus (108) and islanding detect module (105) regulate and control module (106) respectively and are connected with AC power; Built-in ac bus (108) is also connected with alternating current source (13) with islanding detect module (105);
Its system construction feature is:
Form multiple power path, comprising: the energizing power path being made up of photovoltaic generation direct-furnish load photovoltaic module array (10), uncontrollable DC power supply terminal (9), direct current scheduling module (101), built-in DC bus (107), DC/AC module (103), AC power regulation and control module (106) and AC load end (16); By plurality of groups of storage batteries group (12), controllable direct current power supply end (11), charge and discharge control module (102), direct current scheduling module (101), built-in DC bus (107), DC/AC module (103), AC power regulates and controls module (106) and AC load end (16) forms the electric energizing power path of benefit; Photovoltaic electric power charging electric power storage electrical path is formed by photovoltaic module array (10), uncontrollable DC power supply terminal (9), direct current scheduling module (101), charge and discharge control module (102), controllable direct current power supply end (11) and plurality of groups of storage batteries group (12); By generator (14) and electrical network (15) through alternating current source (13), built-in ac bus (108), AC power regulate and control module (106) and AC/DC module (104), direct current scheduling module (101), charge and discharge control module (102), controllable direct current power supply end (11) and plurality of groups of storage batteries group (12) forms peak regulation electric power storage and after the electric electrical path of the next choice; Peak regulation and standby Alternating Current Power Supply electrical path is formed through alternating current source (13), built-in ac bus (108), AC power regulation and control module (106) and AC load end (16) by generator (14) and electrical network (15); Regulated and controled module (106), islanding detect module (105), alternating current source (13) and electrical network (15) formed the electrical path of the remaining electricity of photovoltaic to electrical network feed by photovoltaic module array (10), uncontrollable DC power supply terminal (9), direct current scheduling module (101), built-in DC bus (107), DC/AC module (103), AC power.
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| CN104320042B (en) * | 2014-10-24 | 2018-07-06 | 深圳万讯自控股份有限公司 | A kind of Multifunctional inverter that can be used for charging and driving |
| CN104578388B (en) * | 2014-12-26 | 2017-10-27 | 珠海格力电器股份有限公司 | power supply configuration method and device |
| CN106160209B (en) * | 2015-03-09 | 2018-10-23 | 周锡卫 | A kind of energy internet termination controller |
| CN108695861A (en) * | 2017-04-05 | 2018-10-23 | 周锡卫 | A kind of the inverter sync control device and system of generation of electricity by new energy and energy storage complementation |
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| JP3553574B2 (en) * | 1995-08-29 | 2004-08-11 | 株式会社安川電機 | Control method of power converter for photovoltaic power generation |
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| CN202134924U (en) * | 2011-08-11 | 2012-02-01 | 周锡卫 | Structure of multifunctional system of solar power and self use connected grid |
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Effective date of registration: 20170125 Address after: 100000 Beichen East Road, Chaoyang District, No. 8, building No. 1, building No. 1601, No. 1603, No. Patentee after: Beijing potential new energy technology Co., Ltd. Address before: 100102 Chaoyang District, South Lake Road, No. 8, North building, room 2, room, No. 301 Patentee before: Zhou Xiwei |
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Effective date of registration: 20190613 Address after: 100025 A218, 2nd Floor, Building A, Shifoying Xili 12, Chaoyang District, Beijing Patentee after: Beijing Tianqi Hongyuan New Energy Technology Co., Ltd. Address before: 100000 Beijing Chaoyang District Beichen East Road No. 8 Courtyard No. 1 Building 1601 Inner 1603 Patentee before: Beijing potential new energy technology Co., Ltd. |
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Addressee: Beijing potential new energy technology Co., Ltd. Document name: Notification of Passing Examination on Formalities |