CN218161826U - 10kW wind-solar energy storage complementary power generation system based on electric control cabinet control - Google Patents
10kW wind-solar energy storage complementary power generation system based on electric control cabinet control Download PDFInfo
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- CN218161826U CN218161826U CN202221985497.3U CN202221985497U CN218161826U CN 218161826 U CN218161826 U CN 218161826U CN 202221985497 U CN202221985497 U CN 202221985497U CN 218161826 U CN218161826 U CN 218161826U
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- 238000010248 power generation Methods 0.000 title claims abstract description 61
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- 230000002457 bidirectional effect Effects 0.000 claims abstract description 31
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 2
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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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Abstract
The utility model provides a 10kW scene stores up complementary power generation system based on electrical control cabinet control, include: the power generation system comprises a power generation unit, a control unit, an energy storage unit and a grid-connected junction box for connecting a power distribution network; the power generation unit comprises a photovoltaic cell and a wind driven generator; the control unit comprises a fan controller, an electric control cabinet and a bidirectional energy storage inverter; the energy storage unit comprises a storage battery; the wind driven generator is connected with the fan controller; the photovoltaic cell is connected with the bidirectional energy storage inverter; the grid-connected junction box is connected with the bidirectional energy storage inverter; the electric control cabinet is arranged among the fan controller, the bidirectional energy storage inverter and the storage battery. The power generation unit is used for converting solar energy and wind energy into electric energy which can be directly used. The control unit is used for realizing state switching and reasonable charge and discharge control of the power generation unit and the energy storage unit; the energy storage unit is used for storing electric energy. The wind-solar hybrid energy storage power generation system solves the problem that the power grid is unstable after the power grid is connected in the existing wind-solar hybrid energy storage power generation system utilizing renewable resources.
Description
Technical Field
The utility model relates to a complementary power generation technical field is stored up to scene particularly, especially relates to a 10kW scene stores up complementary power generation system based on electrical control cabinet control.
Background
The main area of new energy power generation in China and the main load area are distributed in a reverse mode, the contradiction between wind power generation and photovoltaic power generation grid-connected operation is serious due to uneven distribution of resources and requirements, and the electric energy generated by a power generation system has uncertain characteristics due to randomness of wind energy resources and solar energy resources, so that after the power generation system is accessed to a large scale, the stability of a power grid is influenced.
The voltage fluctuation generated by the wind power and photovoltaic system in the power generation process can influence the voltage quality of a power grid, and in order to inhibit the fluctuation of the generated power, the system needs to be provided with a conventional unit which is many times higher than the installed capacity to participate in regulation so as to realize stable output. Therefore, how to use renewable resources as much as possible and how to stabilize the power grid after the power grid is connected to the wind-solar hybrid energy storage power generation system, so as to improve the use efficiency of the generator set, becomes a whole problem to be researched urgently.
SUMMERY OF THE UTILITY MODEL
According to the technical problem, the 10kW wind-solar storage complementary power generation system based on the control of the electric control cabinet is provided. The utility model discloses mainly utilize the complementarity of scene and the characteristic that the energy storage unit can restrain the fluctuation, the scene stores up complementary power generation system and uses the energy storage unit to realize the stable output of electric energy, ensures the reliability and the stability of system, reduces because the randomness of the complementary power generation system of scene access distribution network during operation to weaken the impact to the distribution network.
The utility model discloses a technical means as follows:
the utility model provides a 10kW scene stores up complementary power generation system based on electrical control cabinet control, includes: the system comprises a power generation unit, a control unit, an energy storage unit and a grid-connected junction box for connecting a power distribution network; wherein:
the power generation unit comprises a photovoltaic cell and a wind driven generator;
the control unit comprises a wind driven generator controller, an electrical control cabinet and a bidirectional energy storage inverter;
an energy storage unit including a storage battery;
the wind driven generator is connected with the wind driven generator controller; the photovoltaic cell is connected with the bidirectional energy storage inverter; the grid-connected junction box is connected with the bidirectional energy storage inverter; the electric control cabinet is arranged among the wind driven generator controller, the bidirectional energy storage inverter and the storage battery.
Further, the power generation unit is used for converting solar energy and wind energy into electric energy which can be directly used; the photovoltaic cell is a main source of system electric energy, and the connected bidirectional energy storage inverter is used for controlling, protecting and monitoring the photovoltaic cell panel.
Furthermore, the photovoltaic cell is formed by connecting and combining a plurality of solar cells in series and parallel according to different system construction requirements.
Further, the outside of photovoltaic cell still is provided with the photovoltaic cell support, and the photovoltaic cell support is including tracking support or fixed bolster.
Further, the control unit is used for realizing state switching and reasonable charging and discharging control of the power generation unit and the energy storage unit; the battery end of the wind driven generator controller is connected with the incoming line end of an alternating current contactor for controlling a fan in an electrical control cabinet, and the bidirectional energy storage inverter is provided with an RS-485 interface for data acquisition and state monitoring of an upper computer.
Further, the electric control cabinet adopts a Mitsubishi FX-5u series controller as a control core.
Furthermore, the grid-connected junction box connects the electric energy from the bidirectional energy storage inverter to the power distribution network in parallel, and is used for protecting and detecting grid-connected points of the system.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model provides a 10kW scene stores up complementary power generation system based on electrical control cabinet control through setting up the power generation unit, utilizes the complementarity of scene resource, converts undulant wind energy and light energy into the electric energy of stable output.
2. The utility model provides a 10kW scene stores up complementary power generation system based on electrical control cabinet control through setting up the control unit, ensures that wind energy and light energy can reach the energy storage unit that delivers to, and the direct current contravariant that will produce is the required alternating current of electric wire netting, realizes the scene and stores state switching and reasonable charge-discharge control between the complementary power generation system main part.
3. The utility model provides a 10kW scene stores up complementary power generation system based on electrical control cabinet control stabilizes the output through setting up the energy storage unit to ensure the reliability and the stability of system, reduce the intermittent type nature and the randomness of system's access distribution network during operation, thereby weaken the impact to the distribution network.
Based on the reason, the utility model discloses can store up fields such as complementary power generation extensively popularization at scene.
Drawings
In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a block diagram of the system structure of the present invention.
Fig. 2 is a schematic diagram of the electrical control cabinet in the system of the present invention.
In the figure: 1. a photovoltaic cell; 2. a wind power generator; 3. a bidirectional energy storage inverter; 4. a wind generator controller; 5. an electrical control cabinet; 6. a battery; 7. and (5) a grid-connected junction box.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus that are known by one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc., are usually based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, and in the case of not making a contrary explanation, these directional terms do not indicate and imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore, should not be interpreted as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms do not have special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1, the utility model provides a 10kW scene stores up complementary power generation system based on electrical control cabinet control, include: the power generation system comprises a power generation unit, a control unit, an energy storage unit and a grid-connected junction box 7 for connecting a power distribution network; wherein:
the power generation unit comprises a photovoltaic cell 1 and a wind driven generator 2;
the control unit comprises a wind driven generator controller 4, an electrical control cabinet 5 and a bidirectional energy storage inverter 3;
an energy storage unit including a storage battery 6;
the wind driven generator 2 is connected with a wind driven generator controller 4; the photovoltaic cell 1 is connected with a bidirectional energy storage inverter 3; the grid-connected junction box 7 is connected with the bidirectional energy storage inverter 3; the electric control cabinet 5 is arranged among the wind power generator controller 4, the bidirectional energy storage inverter 3 and the storage battery 6.
The specific implementation manner of the utility model is as follows:
when illumination was very strong daytime, distribution network power supply implementation: the photovoltaic cell 1 converts light energy into direct current electric energy and transmits the direct current electric energy to the bidirectional energy storage inverter 3, and the bidirectional energy storage inverter 3 inverts the direct current into alternating current required by the power distribution network; meanwhile, a small part of wind energy is converted into electric energy by the wind driven generator 2, the wind driven generator controller 4 controls the wind driven generator 2 to stably generate the electric energy, the generated electric energy is transmitted to the bidirectional energy storage inverter 3 through the electric control cabinet 5, and the electric energy is finally inverted into alternating current required by the power distribution network; if the system generates redundant electric energy, the electric energy can be distributed by the electric control cabinet, one part is used by the system, and the other part is stored in the storage battery 6 for standby of the system.
The working mode at night is consistent with that at daytime, the wind energy is abundant at night, the light energy is insufficient, and the wind driven generator 2 is mainly used for generating electricity. The electric control cabinet 5 is the core of the system and mainly realizes the state switching and reasonable charge and discharge control between the main parts of the wind and light storage complementary power generation system.
In specific implementation, as a preferred embodiment of the present invention, the power generation unit is used for converting solar energy and wind energy into electric energy which can be directly used; the photovoltaic cell 1 is a main source of system electric energy, and the connected bidirectional energy storage inverter 3 is used for controlling, protecting and monitoring the photovoltaic cell panel.
When the solar photovoltaic system is specifically implemented, as the preferred embodiment of the present invention, the photovoltaic cell 1 is formed by combining a plurality of solar cells in different series-parallel connection according to the system construction requirement. Taking the luo-chun city as an example, the effective wind energy percentage of the luo-chun city exceeds 50%, so that the annual average wind energy can be used for about 4380 hours, and the daily average generated energy is:
since the design is a 10kW wind-solar-energy storage complementary power generation system, the ratio of solar energy to wind energy is 3.72 =14.8 according to the above analysis, so the power of the fan should be 0.63kW, about 1kW, so the photovoltaic cell system occupies 9kW. The power design of photovoltaic systems and wind power generation systems in other areas is designed according to the ratio of local wind energy to local light energy.
The optimal capacity of the wind power generation system and the photovoltaic power generation system which accord with the geodesic environment is calculated by analyzing the meteorological conditions of the Panjin area, the scheme design, the element selection, the system construction and connection and the like of the wind power generation part, the photovoltaic power generation part, the energy storage unit and the electrical control part are carried out according to the determined optimal capacity of the system, and the electrical control cabinet is particularly used as a brand-new electrical control part for controlling core design.
When specifically implementing, as the utility model discloses preferred embodiment, photovoltaic cell 1's outside still is provided with the photovoltaic cell support, and the photovoltaic cell support is including tracking support or fixed bolster.
In specific implementation, as a preferred embodiment of the present invention, the control unit is used for implementing state switching and reasonable charge and discharge control of the power generation unit and the energy storage unit; the battery end of the wind power generator controller 4 is connected with the inlet end of an alternating current contactor of a control fan in the electric control cabinet 5, and the bidirectional energy storage inverter 3 is provided with an RS-485 interface for data acquisition and state monitoring of an upper computer. The bidirectional energy storage inverter 3 has all functions of a photovoltaic controller and also has the function of an inverter, can scientifically control photovoltaic power generation, and has the function of inverting direct current of a storage battery into alternating current which meets the requirements of a power grid. The wind power generation controller 4 is an intelligent controller specially designed for a wind power generation system, and the device not only can effectively transmit the energy generated by the wind power generator to the energy storage unit, but also can provide a powerful control function, thereby effectively preventing the wind speed from being out of control and preventing the damage of strong wind to the wind turbine.
In specific implementation, as a preferred embodiment of the present invention, the electrical control cabinet 5 uses a mitsubishi FX-5u series controller as a control core. As shown in fig. 2, it is a schematic diagram of an electrical control cabinet according to an embodiment of the present invention. The function of the components in fig. 2 is as follows:
QF is a switching component; QF1 is the main power switch; QF2 is a power switch of an FX-5u controller and an alternating current contactor; QF3 is a power switch of a direct current power supply; QF4 is a power switch for driving an intermediate relay by an FX-5u controller; QF5 is a power switch of the touch screen of the upper computer. In FIG. 2, a DC switching power supply with 100W/24VDC output power is selected to convert AC220V into DC24V, and power supplies of an intermediate relay and a touch screen are provided.
KA is an intermediate relay; the function of the intermediate relay is to realize that the low output signal of the control system needs to be electrically isolated from the large current end of the contactor, so that the contactor with larger current is driven for a long time. In fig. 2, KA1, KA2, and KA3 are all intermediate relays.
KM is an alternating current contactor; the alternating current contactor is used for realizing connection state switching among the fan controller, the photovoltaic controller and the energy storage unit. The installed capacity of the fan is 1kW, and a contactor with a main contact point allowing current to be 25A for a long time is selected and numbered as KM1. The installed photovoltaic capacity is 9kW and is controlled by two energy storage inverters, and the two contactors of photovoltaic adopt contactors with main contacts allowing current to be 50A for a long time, are used for realizing independent control of the two bidirectional energy storage inverters and are numbered as KM2 and KM3. The influence caused by direct connection among all parts is avoided through independent control of the respective alternating current contactors.
When the specific implementation, as the utility model discloses preferred embodiment, the distribution network is received with the electric energy that comes from two-way energy storage inverter 3 to the junction box 7 that is incorporated into the power networks for protection and detection to the system grid-connected point. The grid-connected junction box 7 is a special component for grid connection, and mainly has the functions of connecting electric energy from the bidirectional energy storage inverter to a power distribution network and protecting and detecting grid-connected points of the system.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a 10kW scene stores up complementary power generation system based on electrical control cabinet control which characterized in that includes: the power generation system comprises a power generation unit, a control unit, an energy storage unit and a grid-connected junction box (7) for connecting a power distribution network; wherein:
a power generation unit comprising a photovoltaic cell (1) and a wind generator (2);
the control unit comprises a wind driven generator controller (4), an electrical control cabinet (5) and a bidirectional energy storage inverter (3);
an energy storage unit comprising a battery (6);
the wind driven generator (2) is connected with a wind driven generator controller (4); the photovoltaic cell (1) is connected with the bidirectional energy storage inverter (3); the grid-connected junction box (7) is connected with the bidirectional energy storage inverter (3); the electric control cabinet (5) is arranged among the wind driven generator controller (4), the bidirectional energy storage inverter (3) and the storage battery (6).
2. The electrical control cabinet control-based 10kW wind-solar-storage hybrid power generation system of claim 1, wherein the power generation unit is used for converting solar energy and wind energy into electric energy which can be directly used; the photovoltaic cell (1) is a main source of system electric energy, and the connected bidirectional energy storage inverter (3) is used for controlling, protecting and monitoring the photovoltaic cell panel.
3. The 10kW wind-solar-energy storage complementary power generation system based on electrical control cabinet control according to claim 1, wherein the photovoltaic cell (1) is formed by different series-parallel connection combinations of a plurality of solar cells according to system construction requirements.
4. The 10kW wind-solar-storage hybrid power generation system based on electric control cabinet control is characterized in that a photovoltaic cell support is further arranged outside the photovoltaic cell (1), and the photovoltaic cell support comprises a tracking support or a fixed support.
5. The 10kW wind-solar-energy storage complementary power generation system based on electric control cabinet control according to claim 1, wherein the control unit is used for realizing state switching and reasonable charging and discharging control of the power generation unit and the energy storage unit; the battery end of the wind driven generator controller (4) is connected with the inlet wire end of an alternating current contactor for controlling the fan in the electric control cabinet (5), and the bidirectional energy storage inverter (3) is provided with an RS-485 interface for data acquisition and state monitoring of an upper computer.
6. The 10kW wind-solar-storage hybrid power generation system based on electric control cabinet control according to claim 5, wherein the electric control cabinet (5) adopts a Mitsubishi FX-5u series controller as a control core.
7. The 10kW wind-solar-storage hybrid power generation system based on electric control cabinet control according to claim 1, wherein the grid-connected junction box (7) connects electric energy from the bidirectional energy storage inverter (3) to a power distribution network in parallel for protection and detection of a grid-connected point of the system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221985497.3U CN218161826U (en) | 2022-07-29 | 2022-07-29 | 10kW wind-solar energy storage complementary power generation system based on electric control cabinet control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221985497.3U CN218161826U (en) | 2022-07-29 | 2022-07-29 | 10kW wind-solar energy storage complementary power generation system based on electric control cabinet control |
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| CN218161826U true CN218161826U (en) | 2022-12-27 |
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| CN202221985497.3U Expired - Fee Related CN218161826U (en) | 2022-07-29 | 2022-07-29 | 10kW wind-solar energy storage complementary power generation system based on electric control cabinet control |
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- 2022-07-29 CN CN202221985497.3U patent/CN218161826U/en not_active Expired - Fee Related
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Granted publication date: 20221227 |