CN202076961U - Solar photovoltaic power system with energy networking function - Google Patents
Solar photovoltaic power system with energy networking function Download PDFInfo
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- CN202076961U CN202076961U CN2011201942859U CN201120194285U CN202076961U CN 202076961 U CN202076961 U CN 202076961U CN 2011201942859 U CN2011201942859 U CN 2011201942859U CN 201120194285 U CN201120194285 U CN 201120194285U CN 202076961 U CN202076961 U CN 202076961U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
The utility model relates to a solar photovoltaic power system with an energy networking function. Solar photovoltaic power generation is greatly used in independent user systems in remote areas and the power supply systems of concentrated village power stations. As main clean energy, the advantages of solar power are obvious. The solar photovoltaic power system with the energy networking function comprises a local grid power transmission unit and a plurality of user basic units which are connected with the local grid power transmission unit. Each user basic unit consists of a solar photovoltaic module, an intelligent control unit, a power carrier unit or a controller area network (CAN) bus, a load balancing unit, a photovoltaic networked charging unit, a power share regulating unit, a local energy network unit, a direct-current/direct-current (DC/DC) unit, a two-way DC/DC unit and a modularized energy storage unit. The solar photovoltaic power system with the energy networking function has the advantages that networking among families or electricity consumers is realized to construct a local energy network, a power regulation function is obtained among the user basic units, and the goal of energy share is achieved.
Description
Technical field
The utility model relates to the renewable and clean energy resource technical field, especially a kind of solar photovoltaic generation system with energy networking function.
Background technology
Solar energy power generating has obtained a large amount of application in the electric power system of independent family, remote districts with system and power station, concentrated village, as main clean energy resource, the benefit of solar power generation is apparent.Common solar power system is made up of solar photovoltaic assembly, controller for solar, batteries, load and inverter (optional) at present, as the controller for solar of family with system, the problem that its prior art exists is: its solar components of solar power system and energy storage battery can only use for this unit.Because holding at high price of solar components and energy storage battery makes that the cost of solar power generation is very high, becomes the major obstacle that solar power generation is applied.
The utility model content
The utility model will provide a kind of solar photovoltaic generation system with energy networking function, to solve the high problem of cost that prior art exists.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind of solar photovoltaic generation system with local energy networking function, it is characterized in that: comprise local power net electric power transfer unit and several family elementary cells that is connected with local grid power transmission unit, each family uses elementary cell by solar photovoltaic assembly, intelligent control unit, power carrier unit or CAN bus, Load Balance Unit, photovoltaic networking charhing unit, electric power is shared regulon, local energy network unit, the DC/DC unit, two-way DC/DC unit and modularization energy-storage units are formed, the output of solar photovoltaic assembly is connected by the input of the photovoltaic networking charhing unit of intelligent control unit 4 and correspondence, a road of photovoltaic networking charhing unit 3 is connected with the modularization energy-storage units, another road is connected with Load Balance Unit 7 by the DC/DC unit, Load Balance Unit 7 is connected with the local power net electric power transfer unit, the partial electric grid electric power transfer unit is shared regulon with electric power and is connected, electric power is shared regulon and is connected with two-way DC/DC unit, two-way DC/DC unit is connected with the modularization energy-storage units, and the partial electric grid electric power transfer unit is connected with intelligent control unit 4 by power carrier unit or CAN bus.
Above-mentioned family is provided with at least one with the photovoltaic networking charhing unit of elementary cell, when several photovoltaic networking charhing units are set, and several photovoltaic networking charhing units formation in parallel photovoltaic networking charhing unit group.
Above-mentioned intelligent control unit comprises CPU; first port of CPU is connected with the control circuit of each unit, and second port of CPU is connected with the parameter acquisition circuit, and the 3rd port of CPU is connected with protective circuit; the 4th port of CPU is connected with the liquid crystal keyboard, and the five-port of CPU is connected with communicating circuit.
The CPU of above-mentioned intelligent control unit adopts the AT90CAN128 model.
Compared with prior art, the beneficial effects of the utility model:
1, the utility model adopts one family or electricity consumer to make up a family elementary cell, this family is to be the solar power system of core with the microprocessor with elementary cell, its solar photovoltaic assembly and energy storage device are the minimal configuration that satisfies this unit need for electricity, in order to reduce cost, have needed control of solar power generation and measuring ability, and with the interface of external communication;
2, network between family or the electricity consumer, make up the local energy network, the family reaches the energy and shares with possessing the electric adjustment function between the elementary cell;
3, solar photovoltaic assembly can be given the energy storage device charging of this unit, also can give the energy-storage units charging of other electric unit by energy network;
4, energy has regulatory function in network internal.When the energy output of certain electric unit during greater than himself need for electricity, unnecessary electric power can be transported on the energy network; When the energy output of electric unit can not satisfy the need for electricity of himself, send the electricity request of borrowing to energy network, obtaining can obtaining the electric power support from energy network after the permission, solve the electrical problem of less capacity configuration elementary cell;
5, the family is formed the local energy network with elementary cell by power carrier, the 1KM scope with interior village or building in, realize the transmission of basic electric unit institute electricity;
6, the structure of energy network can be realized using more powerful electrical equipment than the generating configuration of low capacity, has effectively reduced user's input cost; Solar battery has effectively improved the charging efficiency of solar photovoltaic assembly to the modularization energy-storage units charging of whole network interior nodes, has reduced the influence that environment such as weather bring; The modularization energy-storage units can use for all loads in the whole network, increases the service efficiency of modularization energy-storage units, also power supply use in support separately.
Description of drawings
Fig. 1 is a network structure of the present utility model.
Fig. 2 is family of the present utility model basic cell structure figure.
Fig. 3 is an intelligent control unit structure chart of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model patent is described in further detail.
Referring to Fig. 1,2, the utility model comprises local power net electric power transfer unit 10 and several family elementary cells that is connected with local grid power transmission unit 10, each family uses elementary cell by solar photovoltaic assembly 1, intelligent control unit 4, power carrier unit 9 or CAN bus, Load Balance Unit 7, photovoltaic networking charhing unit 3, electric power is shared regulon 8, local energy network unit, DC/DC unit 5, two-way DC/DC unit 6 and modularization energy-storage units 2 are formed, the output of solar photovoltaic assembly 1 is connected by the input of the photovoltaic networking charhing unit 3 of intelligent control unit 4 and correspondence, a road of photovoltaic networking charhing unit 3 is connected with modularization energy-storage units 2, another road is connected with Load Balance Unit 7 by DC/DC unit 5, Load Balance Unit 7 is connected with local power net electric power transfer unit 10, partial electric grid electric power transfer unit 10 is shared regulon 8 with electric power and is connected, electric power is shared regulon 8 and is connected with two-way DC/DC unit 6, two-way DC/DC unit 6 is connected with modularization energy-storage units 2, and partial electric grid electric power transfer unit 10 is connected with intelligent control unit 4 by power carrier unit 9 or CAN bus.
Above-mentioned family is provided with at least one with the photovoltaic networking charhing unit 3 of elementary cell, when several photovoltaic networking charhing units 3 are set, and several photovoltaic networking charhing unit 3 formation photovoltaic networking charhing unit groups in parallel.
Referring to Fig. 3; intelligent control unit 4 comprises CPU; first port of CPU is connected with the control circuit 11 of each unit; second port of CPU is connected with parameter acquisition circuit 12; the 3rd port of CPU is connected with protective circuit 13; the 4th port of CPU is connected with liquid crystal keyboard 14, and the five-port of CPU is connected with communicating circuit 15.
The CPU of above-mentioned intelligent control unit 4 adopts the AT90CAN128 model.
The utility model comprises at least two family elementary cells, each family is connected with partial electric grid electric power transfer unit 10 with elementary cell, and each family is connected with the controller of other families with elementary cell with local grid power transmission unit 10 by power carrier unit 9 with the controller of elementary cell.Each user's elementary cell is formed local energy network unit, the 1KM scope with interior village or building in, realize the transmission of basic electric unit institute electricity, the solar photovoltaic assembly and the energy storage device of basic electric unit are the minimal configuration that satisfies this unit need for electricity, in order to reduce cost.
When solar photovoltaic assembly 1 generating was only used for this unit, 3 cut-outs of photovoltaic networking charhing unit were connected with local power net electric power transfer unit 10, and solar photovoltaic assembly 1 only charges 3 to the modularization energy-storage units of this unit; When these unit-modularized energy-storage units 2 chargings were finished, photovoltaic networking charhing unit 3 was connected solar photovoltaic assembly 1 and local power net electric power transfer unit 10, to local energy network transmission of electric energy.
When elementary cell is used at the family to local energy network transmission of electric energy, other is not finished and can pass through local power net electric power transfer unit 10, the shared regulon 8 of electric power and two-way DC/DC unit 6 to the family of modularization energy-storage units 2 chargings with elementary cell, and the electric weight in the use local energy network is finished the charging of modularization energy-storage units 2 fast.
When the need for electricity of himself can not be satisfied with the storing electricity of elementary cell or rated power in the family, send the electricity request of borrowing to energy network, after obtaining permission, electric power is shared regulon 8 and is connected with local power net electric power transfer unit 10, make the family obtain the electric power support from the local energy network, make the family of less capacity configuration can use than high-power electric appliance with elementary cell with elementary cell.
Intelligent control unit: the management of charging and discharging of finishing energy network; real-time acquisition system parameter (output voltage of energy-storage units voltage, charging current, load and output current etc.); the storage and the demonstration of all kinds of operational factors of realization system; the adjustment of system control parameters and correction; the various circuit protections of system (overshoot, cross put, reversal connection, short circuit or the like); the temperature-compensating of the virtual voltage of storage battery, supervisory user power consumption, automatic charging.According to Monitoring Data, the adjusting of electric power in control charging process and the network.
Power carrier unit: be mainly the power carrier transceiver, realize the networking of family, realize the transmission of energy network inner control signal, set up the energy network, finish sharing of electric weight with elementary cell with PLC technology.
Two-way DC/DC unit:, perhaps be connected to the local power net electric power transfer unit behind the low-voltage direct electric boost with the modularization energy-storage units with giving the charging of modularization energy-storage units after the high voltage direct current step-down of local power net.
The modularization energy-storage units: be storage battery or ultracapacitor, the storage solar photovoltaic assembly generate electricity can, be full of and can take out separately power supply use in support behind the electricity, can be used for to power devices separately.
Claims (4)
1. solar photovoltaic generation system with local energy networking function, it is characterized in that: comprise local power net electric power transfer unit (10) and several family elementary cells that is connected with local grid power transmission unit (10), each family uses elementary cell by solar photovoltaic assembly (1), intelligent control unit (4), power carrier unit (9) or CAN bus, Load Balance Unit (7), photovoltaic networking charhing unit (3), electric power is shared regulon (8), local energy network unit, DC/DC unit (5), two-way DC/DC unit (6) and modularization energy-storage units (2) are formed, the output of solar photovoltaic assembly (1) is connected by the input of the photovoltaic networking charhing unit (3) of intelligent control unit (4) and correspondence, a road of photovoltaic networking charhing unit (3) is connected with modularization energy-storage units (2), another road is connected with Load Balance Unit (7) by DC/DC unit (5), Load Balance Unit (7) is connected with local power net electric power transfer unit (10), partial electric grid electric power transfer unit (10) is shared regulon (8) with electric power and is connected, electric power is shared regulon (8) and is connected with two-way DC/DC unit (6), two-way DC/DC unit (6) is connected with modularization energy-storage units (2), and partial electric grid electric power transfer unit (10) is connected with intelligent control unit (4) by power carrier unit (9) or CAN bus.
2. a kind of solar photovoltaic generation system according to claim 1 with local energy networking function, it is characterized in that: described family is provided with at least one with the photovoltaic networking charhing unit (3) of elementary cell, when several photovoltaic networking charhing units (3) are set, several photovoltaic networking charhing units (3) formation in parallel photovoltaic networking charhing unit group.
3. a kind of solar photovoltaic generation system according to claim 1 and 2 with local energy networking function; it is characterized in that: described intelligent control unit (4) comprises CPU; first port of CPU is connected with the control circuit (11) of each unit; second port of CPU is connected with parameter acquisition circuit (12); the 3rd port of CPU is connected with protective circuit (13); the 4th port of CPU is connected with liquid crystal keyboard (14), and the five-port of CPU is connected with communicating circuit (15).
4. a kind of solar photovoltaic generation system with local energy networking function according to claim 3 is characterized in that: the CPU of described intelligent control unit (4) adopts the AT90CAN128 model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201942859U CN202076961U (en) | 2011-06-10 | 2011-06-10 | Solar photovoltaic power system with energy networking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201942859U CN202076961U (en) | 2011-06-10 | 2011-06-10 | Solar photovoltaic power system with energy networking function |
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| Publication Number | Publication Date |
|---|---|
| CN202076961U true CN202076961U (en) | 2011-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201942859U Expired - Lifetime CN202076961U (en) | 2011-06-10 | 2011-06-10 | Solar photovoltaic power system with energy networking function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208825A (en) * | 2011-06-10 | 2011-10-05 | 西安工业大学 | Solar photovoltaic power generation system with energy networking function |
| CN103280833A (en) * | 2013-05-03 | 2013-09-04 | 上海交通大学 | Method for controlling power distribution network based on energy storage and photovoltaic coordination of active mechanism |
| CN105844550A (en) * | 2016-04-08 | 2016-08-10 | 招商局重庆交通科研设计院有限公司 | Internet plus based green energy city information sharing system |
-
2011
- 2011-06-10 CN CN2011201942859U patent/CN202076961U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208825A (en) * | 2011-06-10 | 2011-10-05 | 西安工业大学 | Solar photovoltaic power generation system with energy networking function |
| CN102208825B (en) * | 2011-06-10 | 2013-05-15 | 西安工业大学 | Solar photovoltaic power generation system with energy networking function |
| CN103280833A (en) * | 2013-05-03 | 2013-09-04 | 上海交通大学 | Method for controlling power distribution network based on energy storage and photovoltaic coordination of active mechanism |
| CN105844550A (en) * | 2016-04-08 | 2016-08-10 | 招商局重庆交通科研设计院有限公司 | Internet plus based green energy city information sharing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111214 Effective date of abandoning: 20130515 |
|
| RGAV | Abandon patent right to avoid regrant |