CN210428534U - Energy trading system - Google Patents
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- CN210428534U CN210428534U CN201921477625.1U CN201921477625U CN210428534U CN 210428534 U CN210428534 U CN 210428534U CN 201921477625 U CN201921477625 U CN 201921477625U CN 210428534 U CN210428534 U CN 210428534U
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Abstract
The utility model provides an energy transaction system relates to energy transaction technical field, include: a plurality of user power generation and utilization systems, wherein, user power generation and utilization systems include: an energy router; under the condition that at least one user power generation system has a complementary power demand, an energy router of one user power generation system in the plurality of user power generation systems is determined as a temporary dispatching center, and energy transaction processing among the plurality of user power generation systems is carried out through the temporary dispatching center. The utility model discloses an energy transaction system does not have fixed dispatch center, adopts no main transaction form, and the dispatch center can switch in a flexible way, can reduce dispatch center's work load for entire system's operation is more stable, reliable.
Description
Technical Field
The disclosure relates to the technical field of energy trading, in particular to an energy trading system.
Background
The energy internet is a novel ecological energy system, and is an energy network which takes an electric power system as a core and has traditional independent operation of electricity, heat, gas, oil, traffic and the like, and forms a novel energy collaborative optimization and intercommunication interconnection network by taking an advanced information communication technology and an energy trading system as links. On the basis of an energy internet, an energy transaction system is realized, and the energy transaction system is a distributed system which integrates power generation, power storage, power distribution and power utilization and can realize energy transaction. In the existing energy trading system, a fixed energy dispatching center is arranged, energy trading is carried out through the energy dispatching center, if the energy dispatching center breaks down, all users cannot trade electric energy, the work load of the energy dispatching center is large, and the energy dispatching center is prone to breaking down in operation.
SUMMERY OF THE UTILITY MODEL
In view of the above, one technical problem to be solved by the present disclosure is to provide an energy trading system capable of performing energy trading processing between a plurality of user power generation and utilization systems through a temporary dispatching center.
According to an aspect of the present disclosure, there is provided an energy trading system including: a plurality of user power generation and utilization systems, wherein the user power generation and utilization systems comprise: an energy router; in the case that at least one user power generation system has a supplementary power demand, an energy router of one of the plurality of user power generation systems is determined as a temporary dispatching center, and energy transaction processing among the plurality of user power generation systems is carried out through the temporary dispatching center.
Optionally, each energy router sends the first electric quantity surplus of the user power generation system to which the energy router belongs to other energy routers, and receives the second electric quantity surplus sent by other energy routers; wherein all energy routers determine the temporary scheduling center based on the first power headroom and the second power headroom.
Optionally, if the energy router judges that a scheduling center determination condition is met based on the first electric quantity surplus and the second electric quantity surplus, the energy router determines itself as the temporary scheduling center and sends a scheduling center determination message to other energy routers; wherein, the scheduling center sets conditions including: and the energy router belongs to a user power generation and utilization system with the maximum residual power or the maximum power demand.
Optionally, the user power generation and utilization system further includes: the power generation device, the electric equipment and the converter; the current transformer is respectively connected with the energy router, the power generation device and the electric equipment; the converter obtains the current power generation amount of the power generation device and the power consumption of the electric equipment, and sends the current power generation amount and the power consumption to the energy router, so that the energy router obtains the first power allowance or the second power allowance based on the current power generation amount and the power consumption.
Optionally, the user power generation and utilization system further includes: an energy storage device; the converter is connected with the energy storage device and controls the energy storage device to store the electric energy output by the power generation device.
Optionally, the energy router is connected with the electric equipment; the energy router is used for sending the received supplementary electric energy to the current transformer and/or the electric equipment.
Optionally, the temporary scheduling center determines a supplementary electric energy output amount or a supplementary electric energy demand amount corresponding to the temporary scheduling center or another energy router according to the first electric quantity surplus and the second electric quantity surplus; and the temporary dispatching center generates a first electric energy transaction instruction corresponding to the temporary dispatching center and a second electric energy transaction instruction corresponding to other energy routers based on the supplementary electric energy output quantity and the supplementary electric energy input quantity, and sends the second electric energy transaction instruction to the corresponding energy routers.
Optionally, if the temporary scheduling center needs to output the supplementary electric energy, the temporary scheduling center provides the supplementary electric energy to the energy router needing to input the supplementary electric energy by using the supplementary electric energy output by the temporary scheduling center and the received electric energy sent by other energy routers needing to output the supplementary electric energy; and if the temporary dispatching center needs to input the supplementary electric energy, the temporary dispatching center uses the received electric energy sent by all the energy routers needing to output the supplementary electric energy to provide the supplementary electric energy for the temporary dispatching center and the energy routers needing to input the supplementary electric energy.
Optionally, if the temporary dispatching center or another energy router determines that supplementary electric energy needs to be output, a network feeding instruction is sent to the corresponding converter, so that the converter controls the energy storage device to stop storing electric energy, and the electric energy generated by the power generation device is sent to the temporary dispatching center or another energy router.
Optionally, the energy router receives the electric energy generated by the power generation device, and if it is determined that the energy router is not the temporary scheduling center, the energy router sends the electric energy generated by the power generation device to the temporary scheduling center.
The energy transaction system disclosed by the invention is not provided with a fixed dispatching center, under the allocation of the temporary dispatching center, the electric energy transaction is realized among the power generation and utilization systems of each user, a masterless transaction form is adopted, the dispatching center can be flexibly switched, when one link fails, the system breakdown can not be caused, the workload of the dispatching center can be reduced, and the operation of the whole system is more stable and reliable.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without inventive exercise.
Fig. 1 is a schematic diagram of one embodiment of an energy trading system according to the present disclosure;
fig. 2 is a schematic diagram of another embodiment of an energy trading system according to the present disclosure;
fig. 3 is a schematic diagram of interaction of energy and information between user power generation and utilization systems in another embodiment of the energy trading system according to the present disclosure.
Detailed Description
The present disclosure now will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the disclosure are shown. The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure. The technical solution of the present disclosure is described in various aspects below with reference to various figures and embodiments.
The terms "first", "second", and the like are used hereinafter only for descriptive distinction and have no other special meaning.
The utility model provides an energy transaction system, including a plurality of users power generation and utilization system, a plurality of users power generation and utilization system constitute distributed system, and the quantity of user power generation and utilization system can be for 3,4, 5 etc. As shown in fig. 1, the energy trading system includes: a user power generation system 1, a user power generation system 2, a user power generation system 3 and a user power generation system 4.
The user power generation system 1 comprises an energy router 1, the user power generation system 2 comprises an energy router 2, the user power generation system 3 comprises an energy router 3, and the user power generation system 4 comprises an energy router 4. The energy router has the functions of analyzing energy data, issuing energy distribution instructions, transmitting electric energy and the like, and can simultaneously process energy flows and information flows.
In the case that at least one of the user electricity generation system 1, the user electricity generation system 2, the user electricity generation system 3 and the user electricity generation system 4 has a demand for supplementary electric energy, an energy router of one of the four user electricity generation systems is determined as a temporary dispatching center, and energy transaction processing among the user electricity generation system 1, the user electricity generation system 2, the user electricity generation system 3 and the user electricity generation system 4 is performed through the temporary dispatching center, wherein the energy transaction processing includes calculation of transaction electric quantity, transaction information distribution, electric energy dispatching and the like.
For example, in the case where the consumer power generation system 2 has a demand for supplementary electric energy, the energy router 1 of the consumer power generation system 1 is determined as a temporary dispatching center, and the energy transaction processing between the four consumer power generation systems is performed by the temporary dispatching center.
The energy transaction system in the above embodiment does not have a fixed scheduling center, and the energy router in each user power generation and utilization system may become a temporary scheduling center; and if the user power generation and utilization systems have power utilization requirements, the power trading among the user power generation and utilization systems is realized under the allocation of the temporary dispatching center.
In one embodiment, each energy router sends a first power headroom of a user power generation system to which the energy router belongs to other energy routers, and receives second power headroom sent by other energy routers. For example, the energy router 1 transmits the first margin of power of the user power generation system 1 to which the energy router 1 belongs to the energy router 2, the energy router 3, and the energy router 4, and receives the second margins of power transmitted by the energy router 2, the energy router 3, and the energy router 4, which correspond to the user power generation system 2, the user power generation system 3, and the user power generation system 4, respectively. The energy router 1, the energy router 2, the energy router 3, and the energy router 4 determine a temporary scheduling center based on the first power headroom and the second power headroom.
And if the energy router 1, the energy router 2, the energy router 3 or the energy router 4 judges that the scheduling center determination condition is met based on the first electric quantity surplus and the second electric quantity surplus, determining the self as a temporary scheduling center, and sending a scheduling center determination message to other energy routers. The scheduling center setting conditions may be various, for example, the scheduling center setting conditions include: the energy router belongs to the user power generation and utilization system with the largest residual power or the largest power demand.
Or if the temporary scheduling center determines that one energy router meets the scheduling center determination condition based on the first electric quantity residual quantity and the second electric quantity residual quantity, the temporary scheduling center determines the energy router as a new temporary scheduling center and sends a scheduling center determination message to other energy routers.
For example, if the energy router 1 determines that the remaining power of the power generation and utilization system 1 of the user to which the energy router 1 belongs is the maximum based on the first power headroom and the second power headroom, the energy router 1 determines itself as a temporary scheduling center, and sends a scheduling center determination message to the energy router 2, the energy router 3, and the energy router 4.
The energy router 1, the energy router 2, the energy router 3, or the energy router 4 may transmit the first power headroom or the second power headroom in real time or periodically. And if the first electric quantity residual quantity or the second electric quantity residual quantity is a positive value, indicating that residual electric quantity exists, and if the first electric quantity residual quantity or the second electric quantity residual quantity is a negative value, determining that the supplementary electric energy requirement exists. Or when one or more user power generation systems need to supplement the electric energy, the energy router broadcasts a supplement electric energy request to determine that the supplement electric energy needs.
After a temporary dispatching center completes energy transaction processing, the next time at least one user power generation and utilization system has the requirement of supplementing electric energy, the temporary dispatching center needs to be determined again. In a time period, only one temporary dispatching center can be arranged in the energy transaction system, and in an initial condition, one energy router can be pre-designated as the temporary dispatching center.
The electric quantity generated by the power generation device of the user power generation system is Q1, the electric quantity currently required to be consumed by the electric equipment of the user power generation system is Q2, the first electric quantity surplus or the second electric quantity surplus is △ Q (△ Q-Q1-Q2), a temporary dispatching center is determined, the temporary dispatching center is an energy router of the user power generation system with the largest electric quantity demand, △ Q of the user power generation system to which the temporary dispatching center belongs and other user power generation systems are stored in the temporary dispatching center, and the supplementary electric energy is purchased and dispatched from the user power generation system at the position △ Q >0 according to the sum of the supplementary electric energy demands until the electric energy demands of the user power generation systems are met.
In one embodiment, as shown in fig. 2, the user power generation system 1 includes: the energy-saving power generation system comprises a power generation device 1, user side electric equipment 1, an energy storage device 1 and a converter 1, wherein the converter 1 is respectively connected with the energy router 1, the power generation device 1, the user side electric equipment 1 and the energy storage device 1. The user power generation and utilization system 2 includes: the power generation device 2, the user side electric equipment 2, the energy storage device 2 and the converter 2, wherein the converter 2 is respectively connected with the energy router 2, the power generation device 2, the user side electric equipment 2 and the energy storage device 2.
The user power generation and utilization system 3 includes: the power generation device 3, the user side electric equipment 3, the energy storage device 3 and the converter 3, wherein the converter 3 is respectively connected with the energy router 3, the power generation device 3, the user side electric equipment 3 and the energy storage device 3. The user power generation and utilization system 4 includes: the power generation device 4, the user side electric equipment 4, the energy storage device 4 and the converter 4, wherein the converter 4 is respectively connected with the energy router 4, the power generation device 4, the user side electric equipment 4 and the energy storage device 4.
As shown in fig. 3, energy flows and information flows are respectively provided between a converter of a user power generation system and an energy router, between a power generation device and a user-side electric device and between the converter and the energy storage device, and the energy flows and the information flows are provided between the energy routers, and the information flows CAN be transmitted through a local area network, a PLC, a CAN, an RS485, and the like.
In one embodiment, the user power generation system 1 is taken as an example for explanation, and the rest of the user power generation systems are the same as the user power generation system 1. The current transformer 1 obtains the current power generation amount of the power generation device 1 and the power consumption of the user side electric equipment 1, the current power generation amount and the power consumption are sent to the energy router 1, and the energy router 1 calculates a first power allowance based on the current power generation amount and the power consumption.
The converter 1 performs a DC/DC or DC/AC function. The power generation device 1 can generate power by using other new energy sources such as solar energy, wind energy and the like, and output direct current or alternating current. The user-side electric equipment 1 may be a refrigerator, an air conditioner, or the like. The energy storage device 1 may be various energy storage devices, and stores the electric energy generated by the power generation device 1. The converter 1 is connected with the energy storage device 1, and the converter 1 controls the energy storage device 1 to store the electric energy output by the power generation device 1. The energy router 1 is connected with the electric equipment 1, and the energy router 1 is used for sending the received supplementary electric energy to the converter 1 and/or the electric equipment 1.
The energy router 1 is determined as a temporary scheduling center, and the temporary scheduling center determines a supplementary electric energy output amount or a supplementary electric energy demand amount corresponding to itself or other energy routers 2,3,4 according to the first electric quantity surplus and the second electric quantity surplus. And the temporary dispatching center generates a first electric energy transaction instruction corresponding to the temporary dispatching center and a second electric energy transaction instruction corresponding to other energy routers 2,3 and 4 based on the supplementary electric energy output quantity and the supplementary electric energy input quantity, and respectively sends the second electric energy transaction instruction to the corresponding energy routers 2,3 and 4. The first electric energy transaction instruction and the second electric energy transaction instruction comprise information such as purchase electric quantity or output electric quantity. And if the sum of the supplementary electric energy demand quantities is larger than the sum of the supplementary electric energy output quantities, the temporary dispatching center determines the supplementary electric energy input proportion of each energy router needing to input electric energy based on the electric energy demand quantities.
For example, the energy router 1 is a temporary dispatching center, and △ Q corresponding to the user power generation systems 1,2,3,4 are △ Q, respectivelyA，△QB，△QC，△QDWhen the power generation and utilization system of the user has power demand, △ Q corresponding to the power generation and utilization system of the user<0, when the power generation and utilization system of the user has the residual electric quantity, △ Q corresponding to the power generation and utilization system of the user>0。
If all the user power generation systems 1,2,3,4 have residual electric quantity, at this moment, the electric energy flows from the power generation device in each user power generation system 1,2,3,4 to the energy storage device, if the battery SOC of the energy storage device is more than 98%, the power generation power of the power generation device is limited by the converter, and the corresponding △ Q → 0 is ensured.
△ Q if only the temporary dispatch center has power remainingA>0, and △ QB、△QC、△QDAre all less than 0, according to △ QB、△QC、△QDIf △ Q, determining the proportion of the supplementary power to be transmittedA>|△QB|+|△QC|+|△QDIf the power is not enough, the supplementary electric energy and the electric quantity distributed to the power generation and utilization systems 2,3 and 4 of the users are respectively | △ QB|、|△QC|、|△QDIf △ QA<|△QB|+|△QC|+|△QDAnd l, the residual capacity of the user power generation and utilization system 1 to which the temporary scheduling center belongs is not enough to be completely provided for the user power generation and utilization systems 2,3 and 4.
If the insufficient electric quantity is △ Q1 ═ △ QB|+|△QC|+|△QD|-△QAThe amount of power transmitted to the energy router 2 is
By analogy, the electric quantity distributed to the power generation and utilization systems 3 and 4 of the users is
If the user power generation system 1,2 has the power surplus, the user power generation system 3,4 has the power demand, if △ QA+△QB>|△QC|+|△QDIf the power is not enough, the power allocated to the power generation and utilization systems 3 and 4 of the users is | △ Q respectivelyC|、|△QDIf △ QA+△QB<|△QC|+|△QDIf the insufficient amount of power is △ Q2 ═ △ QC|+|△QD|-△QA-△QBThe amount of electricity distributed to the user's electricity generation and utilization systems 3,4 is respectively
In one embodiment, the temporary dispatching center is an energy router 1, and if the temporary dispatching center needs to output the supplementary electric energy, the temporary dispatching center provides the supplementary electric energy to energy routers 3 and 4 needing to input the supplementary electric energy by using the supplementary electric energy output by the temporary dispatching center and the received electric energy sent by other energy routers 2 needing to output the supplementary electric energy.
If the temporary dispatching center needs to input the supplementary electric energy, the temporary dispatching center uses the received electric energy sent by the energy router 2 needing to output the supplementary electric energy to provide the supplementary electric energy for the temporary dispatching center and the energy routers 3 and 4 needing to input the supplementary electric energy.
If the temporary dispatching center and the energy source router 2 determine that the supplementary electric energy needs to be output, network feeding instructions are respectively sent to the corresponding converters 1 and 2, so that the converters 1 and 2 respectively control the energy storage devices 1 and 2 to stop storing the electric energy, and the electric energy generated by the power generation devices 1 and 2 is respectively sent to the temporary dispatching center or other energy source routers 3 and 4. And the energy router 2 receives the electric energy generated by the power generation device 2, determines that the energy router 2 is not the temporary dispatching center, and sends the electric energy generated by the power generation device 2 to the temporary dispatching center.
The energy transaction system in the embodiment has no fixed dispatching center, and each user power generation and utilization system can be a temporary dispatching center; if the user power generation and utilization systems have power utilization requirements, the transaction of the power quantity is realized among the user power generation and utilization systems under the allocation of the temporary dispatching center; by the aid of the non-unique dispatching center and the distributed arrangement, workload of the dispatching center under the traditional condition is reduced, and the whole system is more stable and reliable.
The description of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the disclosure in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the disclosure and the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. An energy trading system, comprising:
the system comprises a plurality of user power generation and utilization systems, wherein the plurality of user power generation and utilization systems form a distributed system; wherein, the user power generation and utilization system comprises: an energy router; the energy router of each user power generation and utilization system is connected with the energy routers of other user power generation and utilization systems; in the case that at least one user power generation system has a supplementary power demand, an energy router of one of the plurality of user power generation systems is determined as a temporary dispatching center, and energy transaction processing among the plurality of user power generation systems is carried out through the temporary dispatching center.
2. The energy trading system of claim 1,
each energy router sends the first electric quantity surplus of the user power generation system to which the energy router belongs to other energy routers and receives the second electric quantity surplus sent by other energy routers; wherein all energy routers determine the temporary scheduling center based on the first power headroom and the second power headroom.
3. The energy trading system of claim 2,
if the energy router judges that a scheduling center determining condition is met based on the first electric quantity residual quantity and the second electric quantity residual quantity, the energy router determines the energy router as the temporary scheduling center and sends scheduling center determining information to other energy routers;
wherein, the scheduling center sets conditions including: and the energy router belongs to a user power generation and utilization system with the maximum residual power or the maximum power demand.
4. The energy trading system of claim 2,
the user power generation and utilization system further comprises: the power generation device, the electric equipment and the converter; the current transformer is respectively connected with the energy router, the power generation device and the electric equipment;
the converter obtains the current power generation amount of the power generation device and the power consumption of the electric equipment, and sends the current power generation amount and the power consumption to the energy router, so that the energy router obtains the first power allowance or the second power allowance based on the current power generation amount and the power consumption.
5. The energy trading system of claim 4,
the user power generation and utilization system further comprises: an energy storage device; the converter is connected with the energy storage device and controls the energy storage device to store the electric energy output by the power generation device.
6. The energy trading system of claim 4,
the energy router is connected with the electric equipment; the energy router is used for sending the received supplementary electric energy to the current transformer and/or the electric equipment.
7. The energy trading system of claim 5,
the temporary dispatching center determines a supplementary electric energy output quantity or a supplementary electric energy demand quantity corresponding to the temporary dispatching center or other energy routers according to the first electric quantity residual quantity and the second electric quantity residual quantity;
and the temporary dispatching center generates a first electric energy transaction instruction corresponding to the temporary dispatching center and a second electric energy transaction instruction corresponding to other energy routers based on the supplementary electric energy output quantity and the supplementary electric energy input quantity, and sends the second electric energy transaction instruction to the corresponding energy routers.
8. The energy trading system of claim 7,
if the temporary dispatching center needs to output the supplementary electric energy, the temporary dispatching center provides the supplementary electric energy to the energy router needing to input the supplementary electric energy by using the supplementary electric energy output by the temporary dispatching center and the received electric energy sent by other energy routers needing to output the supplementary electric energy;
and if the temporary dispatching center needs to input the supplementary electric energy, the temporary dispatching center uses the received electric energy sent by all the energy routers needing to output the supplementary electric energy to provide the supplementary electric energy for the temporary dispatching center and the energy routers needing to input the supplementary electric energy.
9. The energy trading system of claim 8,
and if the temporary dispatching center or other energy routers determine that the supplementary electric energy needs to be output, sending a network feeding instruction to the corresponding converter so that the converter controls the energy storage device to stop storing the electric energy, and sending the electric energy generated by the power generation device to the temporary dispatching center or other energy routers.
10. The energy trading system of claim 9,
and the energy router receives the electric energy generated by the power generation device, and if the energy router is determined not to be the temporary dispatching center, the electric energy generated by the power generation device is sent to the temporary dispatching center.
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| CN201921477625.1U CN210428534U (en) | 2019-09-05 | 2019-09-05 | Energy trading system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110390598A (en) * | 2019-09-05 | 2019-10-29 | 珠海格力电器股份有限公司 | Energy trading system, control method and storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110390598A (en) * | 2019-09-05 | 2019-10-29 | 珠海格力电器股份有限公司 | Energy trading system, control method and storage medium |
| CN110390598B (en) * | 2019-09-05 | 2024-04-26 | 珠海格力电器股份有限公司 | Energy transaction system, control method and storage medium |
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