CN217036759U - Multi-energy complementary stable energy supply system - Google Patents
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Abstract
The utility model provides a multi-energy complementary stable energy supply system, comprising: a plurality of new energy supply systems; the output end of a first new energy system in the first new energy supply system is connected with the input end of the first energy storage system; the output end of a second new energy system in the second new energy supply system is connected with the input end of a second energy storage system; the output end of a third new energy system in the third new energy supply system is connected with the input end of a third energy storage system; the first new energy system, the second new energy system and the third new energy system are different; the first energy storage system, the second energy storage system and the third energy storage system are different; the storage forms of the first energy storage system, the second energy storage system and the third energy storage system can be mutually converted; therefore, the cooperative management function of multiple energy storage technologies is exerted in a multi-energy complementary stable energy supply system, stable supply of heat energy and electric energy is realized, and the economic benefit is high.
Description
Technical Field
The utility model belongs to the technical field of new energy supply systems, and particularly relates to a multi-energy complementary stable energy supply system.
Background
The rapid development of new energy is a necessary choice for realizing the aim of 'double carbon', and has important significance for coping with climate change and promoting sustainable development. At present, the main problems of wind energy, solar energy and the like are that energy sources strongly depend on weather conditions, the output fluctuation of wind power generation and photovoltaic power generation is strong and discontinuous, the peak-load and frequency-modulation pressure of a power grid is increased after the wind power generation and the photovoltaic power generation are incorporated into the power grid, and the large-scale development of new energy is severely limited. The energy storage technology is a key means for realizing energy coordination management and optimization matching, and the technology does not fully play a role in a new energy system at present, so that the energy utilization efficiency of the new energy system is low.
The current new energy development has the following problems: wind energy and solar energy depend on weather conditions, and the fluctuation of generated power is large and discontinuous, so that the grid connection is not facilitated; the existing new energy system mainly adopts a single energy storage form to store energy, cannot fully play the peak-shaving and frequency-modulation functions of various energy storage technologies, and the utilization efficiency of new energy needs to be improved.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a multi-energy complementary stable energy supply system, which is used for performing a cooperative management function of multiple energy storage technologies in the multi-energy complementary stable energy supply system, so as to realize stable supply of thermal energy and electric energy, and has high economic benefit.
The application discloses energy supply system is stabilized to multipotency complementation, this energy supply system is stabilized to multipotency complementation includes: a plurality of new energy supply systems;
the first new energy supply system comprises: the system comprises a first new energy system and a first energy storage system;
the second new forms of energy supply system includes: a second new energy system and a second energy storage system;
the third new forms of energy supply system includes: a third new energy system and a third energy storage system;
the output end of the first new energy system is connected with the input end of the first energy storage system;
the output end of the second new energy system is connected with the input end of the second energy storage system;
the output end of the third new energy system is connected with the input end of the third energy storage system;
the first new energy system, the second new energy system, and the third new energy system are different;
the first energy storage system, the second energy storage system and the third energy storage system are different;
the storage forms among the first energy storage system, the second energy storage system and the third energy storage system can be mutually converted.
Optionally, in the above multi-energy complementary stable energy supply system, the first new energy system is a photo-thermal system;
the first energy storage system is a heat storage system;
the heat storage system outputs a thermal load.
Optionally, in the above-mentioned multi-energy complementary stable energy supply system, the heat storage system includes: at least one of sensible heat storage, latent heat storage, and thermochemical heat storage.
Optionally, in the multi-energy complementary stable energy supply system, the second new energy system is a photovoltaic system;
the second energy storage system is an electrochemical energy storage system;
the electrochemical energy storage system outputs an electrical load.
Optionally, in the multi-energy complementary stable energy supply system, the third new energy system is a fan system;
the third energy storage system is a compressed air energy storage system;
the compressed air energy storage system outputs an electrical load.
Optionally, in the multi-energy complementary stable energy supply system, the photo-thermal system is configured to collect solar heat, and store the solar heat in the heat storage system through a heat exchange medium;
the heat storage system provides heat for heat load equipment on a user side for utilization through a heat exchange medium.
Optionally, in the above multi-energy complementary stable energy supply system, the photovoltaic system performs photovoltaic power generation by using solar energy, and the generated power is stored in the electrochemical energy storage system;
the electrochemical energy storage system provides power to electrical load equipment on the user side for utilization.
Optionally, in the multi-energy complementary stable energy supply system, the fan system drives the fan blade to rotate by using kinetic energy of wind, and directly drives the compressed air energy storage system to store electric energy;
and when the power supply amount of the electrochemical energy storage system is smaller than the demand amount of the user side electric load, starting the compressed air energy storage system to release electric energy to supply the electric load for utilization.
Optionally, in the above multi-energy complementary stable energy supply system, the first new energy system is a photo-thermal system; the first energy storage system is a heat storage system; the second new energy system is a photovoltaic system; the second energy storage system is an electrochemical energy storage system; the third new energy system is a fan system; the third energy storage system is a compressed air energy storage system;
when the compressed air energy storage system generates heat energy in the energy storage process, the heat energy generated by the compressed air energy storage system is stored in the heat storage system through a heat exchange medium.
Optionally, in the above-mentioned multi-energy complementary stable energy supply system, when the compressed air energy storage system will produce cold energy in the electric energy output process, this the cold energy that the compressed air energy storage system produced carries out cooling for photovoltaic system through heat transfer medium, and the heat that heat transfer medium carried is in afterwards heat storage system.
According to the technical scheme, the multi-energy complementary stable energy supply system provided by the utility model comprises: a plurality of new energy supply systems; the first new energy supply system comprises: a first new energy system and a first energy storage system; the second new forms of energy supply system includes: a second new energy system and a second energy storage system; the third new forms of energy supply system includes: a third new energy system and a third energy storage system; the output end of the first new energy system is connected with the input end of the first energy storage system; the output end of the second new energy system is connected with the input end of the second energy storage system; the output end of the third new energy system is connected with the input end of the third energy storage system; the first new energy system, the second new energy system, and the third new energy system are different; the first energy storage system, the second energy storage system and the third energy storage system are different; the storage forms of the first energy storage system, the second energy storage system and the third energy storage system can be mutually converted; therefore, the cooperative management function of multiple energy storage technologies is exerted in the multi-energy complementary stable energy supply system, the stable supply of heat energy and electric energy is realized, and the economic benefit is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 these drawings without creative efforts.
FIG. 1 is a schematic diagram of a multi-energy complementary stable energy supply system provided by an embodiment of the utility model;
FIG. 2 is a schematic diagram of a first system of another multi-energy complementary stable power supply system provided by an embodiment of the utility model;
FIG. 3 is a schematic diagram of a second system of another multi-energy complementary stable power supply system provided by an embodiment of the utility model;
FIG. 4 is a schematic diagram of a third system of another multi-energy complementary stable power supply system provided by an embodiment of the utility model;
fig. 5 is a schematic diagram of another multi-energy complementary stable energy supply system provided by the embodiment of the utility model.
Detailed Description
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 drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiment of the application provides a multi-energy complementary stable energy supply system, wind energy and solar energy depend on weather conditions, and the power generation output fluctuation of the system is large and discontinuous, so that the system is not beneficial to grid connection; the problem that the utilization efficiency of new energy needs to be improved is solved because a single energy storage form is mainly adopted for energy storage in the current new energy system and the peak-shaving frequency modulation effect of various energy storage technologies cannot be fully exerted.
Referring to fig. 1, the multi-energy complementary stable energy supply system comprises: a plurality of new energy supply systems;
the first new energy supply system 100 comprises: a first new energy system 01 and a first energy storage system 02.
The output end of the first new energy system 01 is connected with the input end of the first energy storage system 02.
That is, the first energy storage system 02 is used for storing the output energy of the first new energy system 01. In addition, the storage mode has various modes, and the specific selection mode can be determined according to the type of the actually output energy. Meanwhile, multiple storage modes can exist for storing the same energy, and the storage modes are not repeated one by one and are within the protection range of the application according to the actual situation.
Specifically, when the first new energy system 01 works, the output end of the first new energy system outputs energy to the first energy storage system 02; when the first energy storage system 02 receives the energy output by the first new energy system 01, the energy is stored.
The specific storage manner is not described in detail herein, and is within the scope of the present application depending on the actual situation.
The second new energy supply system 200 includes: a second new energy system 03 and a second energy storage system 04.
The output end of the second new energy system 03 is connected with the input end of the second energy storage system 04.
That is, the second energy storage system 04 is used for storing the output energy of the second new energy system 03. In addition, the storage mode has various modes, and the specific selection mode can be determined according to the type of the actually output energy. Meanwhile, multiple storage modes can exist for storing the same energy, and the storage modes are not repeated one by one and are within the protection range of the application according to the actual situation.
Specifically, when the second new energy system 03 works, the output end of the second new energy system outputs energy to the second energy storage system 04; when the second energy storage system 04 receives the energy output by the second new energy system 03, the energy is stored.
The specific storage modes are not described in detail herein, and may be determined according to actual situations, all of which are within the scope of the present application.
The third new energy supply system 300 includes: a third new energy system 05 and a third energy storage system 06.
The output end of the third new energy system 05 is connected with the input end of the third energy storage system 06;
that is, the third energy storage system 06 is used for storing the output energy of the third new energy system 05. In addition, the storage mode has various modes, and the specific selection mode can be determined according to the type of the actually output energy. Meanwhile, multiple storage modes can be available for storing the same energy, and the storage modes are not described in detail herein any more, and are within the protection scope of the present application depending on the actual situation.
Specifically, when the third new energy system 05 works, the output end of the third new energy system outputs energy to the third energy storage system 06; when receiving the energy output by the third new energy system 05, the third energy storage system 06 stores the energy.
The specific storage modes are not described in detail herein, and may be determined according to actual situations, all of which are within the scope of the present application.
The first new energy system 01, the second new energy system 03 and the third new energy system 05 are different.
That is to say, the multi-energy complementary stable energy supply system includes at least three different types of new energy systems, such as three of the photovoltaic system 20, the hydrogen energy system, the photo-thermal system 10 and the fan system 30, and of course, other new energy systems may also be used, and details are not described herein any more, and the systems are within the scope of protection of the present application as appropriate.
The first energy storage system 02 and the second energy storage system 04 are different from the third energy storage system 06.
It should be noted that, the first new energy system 01, the second new energy system 03 and the third new energy system 05 are different; therefore, the first energy storage system 02, the second energy storage system 04 and the third energy storage system 06 corresponding to the first new energy system 01, the second new energy system 03 and the third new energy system 05 are different, and thus the output energy of the corresponding new energy systems is stored by adopting the appropriate energy storage systems. The specific types of the methods are not described in detail herein, and are all within the scope of the present application depending on the actual situation.
The storage forms of the first energy storage system 02, the second energy storage system 04 and the third energy storage system 06 may be converted to each other.
It should be noted that the storage forms of the first energy storage system 02, the second energy storage system 04 and the third energy storage system 06 may be mutually converted, so that when the energy of any one energy storage system is not enough to be used, the energy of the other energy storage systems may be converted into the energy of the energy storage system. Or the energy which can not be stored by other systems can be transmitted to the corresponding energy storage system for storage, so that the condition of energy waste is avoided.
In this embodiment, the multi-energy complementary stable energy supply system includes: a plurality of new energy supply systems; the first new energy supply system 100 comprises: a first new energy system 01 and a first energy storage system 02; second new forms of energy supply system 200 includes: a second new energy system 03 and a second energy storage system 04; the third new energy supply system 300 includes: a third new energy system 05 and a third energy storage system 06; the output end of the first new energy system 01 is connected with the input end of the first energy storage system 02; the output end of the second new energy system 03 is connected with the input end of the second energy storage system 04; the output end of the third new energy system 05 is connected with the input end of the third energy storage system 06; the first new energy system 01, the second new energy system 03 and the third new energy system 05 are different; the first energy storage system 02 is different from the second energy storage system 04 and the third energy storage system 06; the storage forms among the first energy storage system 02, the second energy storage system 04 and the third energy storage system 06 can be mutually converted; therefore, the cooperative management function of multiple energy storage technologies is exerted in the multi-energy complementary stable energy supply system, the stable supply of heat energy and electric energy is realized, and the economic benefit is high.
In practical application, as shown in fig. 2, in the first new energy supply system 100:
the first new energy system 01 is a photothermal system 10.
The first energy storage system 02 is a heat storage system 11.
The heat storage system 11 outputs a thermal load.
That is, the output end of the photo-thermal system 10 is connected to the input end of the thermal storage system 11; the output of the thermal storage system 11 outputs a thermal load.
It should be noted that the heat storage system 11 may include: at least one of sensible heat storage, latent heat storage, and thermochemical heat storage.
Sensible heat storage, latent heat storage and thermochemical heat storage are three types of heat storage technologies.
Certainly, the heat storage system 11 may also include other types of heat storage technologies, which are not described herein again, and are within the protection scope of the present application as needed.
In practical applications, the photo-thermal system 10 is used for collecting solar heat and storing the solar heat in the heat storage system 11 through a heat exchange medium.
The heat storage system 11 provides heat to a heat load device on a user side for utilization through a heat exchange medium.
That is to say, the heat energy is generally transferred through a heat exchange medium, and certainly, the heat energy is not transferred in other manners, which is not described herein any more, and is within the protection scope of the present application depending on the actual situation.
In practical application, as shown in fig. 3, in the second new energy supply system 200:
the second new energy system 03 is a photovoltaic system 20;
the second energy storage system 04 is an electrochemical energy storage system 21;
the electrochemical energy storage system 21 outputs an electrical load.
That is, the output of the photovoltaic system 20 is connected to the input of the electrochemical energy storage system 21; the output of the electrochemical energy storage system 21 outputs an electrical load.
It should be noted that, the specific type of the electrochemical energy storage system 21 is not limited herein, and may be determined according to actual circumstances, and all of them are within the protection scope of the present application.
In practical applications, the photovoltaic system 20 utilizes solar energy to generate electricity by photovoltaic, and the generated electricity is stored in the electrochemical energy storage system 21.
The electrochemical energy storage system 21 provides power to electrical load devices on the consumer side for utilization.
It should be noted that, specific processes and principles of photovoltaic power generation are not described herein any more, and details thereof are given by referring to the related prior art, and are all within the scope of protection of the present application.
In practical application, as shown in fig. 4, in the third new energy supply system:
the third new energy system 05 is a fan system 30.
The third energy storage system 06 is a compressed air energy storage system 31.
The compressed air energy storage system 31 outputs an electrical load.
That is, the output end of the fan system 30 is connected to the input end of the compressed air energy storage system 31; the output end of the compressed air energy storage system 31 outputs an electric load.
In practical applications, the fan system 30 utilizes the kinetic energy of the wind to drive the fan blades to rotate, and directly drives the compressed air energy storage system 31 to store the electric energy.
When the power supply amount of the electrochemical energy storage system 21 is smaller than the demand amount of the user side electric load, the compressed air energy storage system 31 is started to release the electric energy to supply the electric load for utilization.
Specifically, the fan can be adopted to directly drive the compressed air energy storage system 31 to store electricity according to the conformity of the fan power generation principle and the compressed air energy storage principle, so that the energy supply stability and the energy utilization rate are improved.
The fan power generation principle is no longer repeated here one by one, and the details refer to relevant prior art can, all in the scope of protection of this application.
The compressed air energy storage principle is not repeated here, and the details can be seen in the related prior art, all being in the protection scope of this application.
In a similar way, the compatibility of the fan power generation principle and the compressed air energy storage principle is not repeated one by one here, and the fan power generation principle and the compressed air energy storage principle can be determined according to actual conditions and are all within the protection range of the application.
In practical applications, as can be seen from the above description, the first new energy system 01 may be the photothermal system 10; the first energy storage system 02 may be a heat storage system 11; the second new energy system 03 may be a photovoltaic system 20; the second energy storage system 04 may be an electrochemical energy storage system 21; and, the third new energy system 05 may be a fan system 30; the third energy storage system 06 may be a compressed air energy storage system 31.
Thus, as shown in fig. 5, the first new energy system 01 is a photothermal system 10; the first energy storage system 02 is a heat storage system 11; the second new energy system 03 is a photovoltaic system 20; the second energy storage system 04 is an electrochemical energy storage system 21; and the third new energy system 05 is a fan system 30; the third energy storage system 06 is the compressed air energy storage system 31 for example, and describes energy transfer between different systems of the multi-energy complementary stable energy supply system:
when the compressed air energy storage system 31 generates heat energy in the energy storage process, the heat energy generated by the compressed air energy storage system 31 is stored in the heat storage system 11 through a heat exchange medium.
That is, during the energy storage process of the compressed air energy storage system 31, a situation of generating heat energy may occur, and the compressed air energy storage system 31 itself does not have the function of storing the heat energy. If the thermal energy is not stored, a certain amount of energy will be wasted, and therefore, the thermal energy can be transferred to the heat storage system 11 that can store the thermal energy for storage.
Specifically, the heat energy transfer process, no longer give unnecessary details here, as long as can pass through heat transfer medium with the produced heat energy of compressed air energy storage system 31 and store in among the heat-retaining system 11, all be in the protection scope of this application.
In practical application, in the structure shown in fig. 5:
when the compressed air energy storage system 31 generates cold energy in the electric energy output process, the cold energy generated by the compressed air energy storage system 31 cools and cools the photovoltaic system 20 through the heat exchange medium, and then the heat carried by the heat exchange medium is stored in the heat storage system 11.
That is, the compressed air energy storage system 31 may generate cold energy during the process of outputting electric energy, and the compressed air energy storage system 31 itself does not have the function of utilizing the cold energy. If the cold energy is not utilized, certain energy waste can be caused; therefore, the cold energy can be cooled by the heat exchange medium to the photovoltaic system 20, and then the heat carried by the heat exchange medium is stored in the heat storage system 11, so that the energy storage system stores the heat energy.
Cold energy and heat energy transfer process, here no longer give unnecessary details, as long as can pass through heat transfer medium with the produced cold energy of compressed air energy storage system 31 and carry out cooling for photovoltaic system 20, the heat storage that heat transfer medium carried afterwards is in heat-retaining system 11 can, all in the protection scope of this application.
Specifically, the photothermal system 10 collects solar heat and stores it in the heat storage system 11 through a heat exchange medium. The heat storage system 11 supplies heat to a heat load device on the user side through a heat exchange medium for use. Photovoltaic system 20 utilizes solar energy for photovoltaic power generation, and the generated power is stored in electrochemical energy storage system 21. The electrochemical energy storage system 21 supplies power to the electrical load devices on the user side for use. The fan system 30 utilizes the kinetic energy of the wind to rotate the fan blades and directly drives the compressed air energy storage system 31 to store the electric energy. When the power supply amount of the electrochemical energy storage system 21 is smaller than the demand amount of the user-side electric load, the compressed air energy storage system 31 is started to release the electric energy to supply the electric load for utilization.
The compressed air energy storage system 31 will generate heat energy in the energy storage process, and the heat energy is stored in the heat storage system 11 through the heat exchange medium; when the compressed air energy storage system 31 generates cold energy in the electric energy output process, the cold energy is used for cooling the photovoltaic cell panel through the heat exchange medium, the photovoltaic module is prevented from generating faults due to local overheating, and then the heat carried by the heat exchange medium is stored in the heat storage system 11.
In the embodiment, the photovoltaic-electrochemical energy storage system is combined with the fan-compressed air energy storage system, so that the peak regulation and absorption effects of electric power can be achieved, meanwhile, heat energy generated in the process of storing electric energy by the compressed air energy storage system is stored in the heat storage system, cold energy generated in the process of outputting electric energy is used for cooling the photovoltaic cell panel, and the energy utilization efficiency is improved.
In addition, 100% of heat energy and electric energy generated by the scheme come from renewable energy sources, and the scheme is clean and environment-friendly. Meanwhile, the scheme is flexible in arrangement and easy to implement.
Features described in the embodiments in the present specification may be replaced or combined with each other, and the same and similar portions among the embodiments may be referred to each other, and each embodiment is described with emphasis on differences from other embodiments. In particular, the system or system embodiments, which are substantially similar to the method embodiments, are described in a relatively simple manner, and reference may be made to some descriptions of the method embodiments for relevant points. The above-described system and system embodiments are only illustrative, wherein the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. A multi-energy complementary stable energy supply system, comprising: a plurality of new energy supply systems;
the first new energy supply system comprises: photo-thermal systems and thermal storage systems; the photo-thermal system is used for collecting solar heat and storing the solar heat in the heat storage system through a heat exchange medium; the heat storage system outputs a thermal load;
the second new forms of energy supply system includes: photovoltaic systems and electrochemical energy storage systems; the photovoltaic system performs photovoltaic power generation by utilizing solar energy, and generated electric power is stored in the electrochemical energy storage system; the electrochemical energy storage system outputs an electrical load;
the third new forms of energy supply system includes: the system comprises a fan system and a compressed air energy storage system; the fan system drives a fan blade to rotate by utilizing the kinetic energy of wind and directly drives the compressed air energy storage system to store electric energy; the compressed air energy storage system outputs an electric load;
when the compressed air energy storage system generates heat energy in the energy storage process, the heat energy generated by the compressed air energy storage system is stored in the heat storage system through a heat exchange medium.
2. The multi-energy complementary stable energy supply system of claim 1, wherein the heat storage system comprises: at least one of sensible heat storage, latent heat storage, and thermochemical heat storage.
3. The multi-energy complementary stable energy supply system of claim 1, wherein when the compressed air energy storage system generates cold energy in the process of outputting electric energy, the cold energy generated by the compressed air energy storage system cools the photovoltaic system through the heat exchange medium, and then the heat carried by the heat exchange medium is stored in the heat storage system.
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