CN214543643U - Regional comprehensive energy system containing joint virtual energy storage - Google Patents
Regional comprehensive energy system containing joint virtual energy storage Download PDFInfo
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- CN214543643U CN214543643U CN202120804174.9U CN202120804174U CN214543643U CN 214543643 U CN214543643 U CN 214543643U CN 202120804174 U CN202120804174 U CN 202120804174U CN 214543643 U CN214543643 U CN 214543643U
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Abstract
The utility model provides a regional comprehensive energy system containing combined virtual energy storage, which comprises energy supply equipment, energy conversion and storage equipment, energy utilization load equipment and an energy network; the energy supply equipment supplies energy to the energy conversion and storage equipment through an energy network; the energy conversion and storage equipment supplies energy to the electric load equipment; the energy conversion and storage device comprises a virtual energy storage device; the virtual energy storage equipment comprises an electric automobile charging load and a controllable air conditioner load; the energy conversion and storage equipment optimizes the utilization efficiency of energy supply to the energy supply equipment by adjusting the power consumption of the charging load of the electric automobile and the controllable air conditioner load during energy storage; the utility model discloses be favorable to solving among the above-mentioned background art comprehensive energy system renewable energy consumption ability not enough and the not enough problem of operation economic nature.
Description
Technical Field
The utility model belongs to the technical field of power supply network technique and specifically relates to an area comprehensive energy system who contains joint virtual energy storage.
Background
Sufficient energy supply plays an important role in social development. The conventional energy system causes waste of energy and environmental pollution due to low efficiency and large emission. In recent years, with the rapid development of renewable energy sources, mainly photovoltaic and wind power systems, more alternative low-carbon solutions are provided in the field of energy supply. However, the uncertainty of renewable energy output and the dependence on the operation of the energy network lead to the limitation of energy inefficiency and insufficient economic efficiency. In order to solve the problems, the comprehensive energy system realizes multi-energy supply of electricity, gas, cold and heat by utilizing energy co-production equipment, multi-energy conversion equipment and energy storage equipment, and fully utilizes renewable energy. In cities, regional integrated energy systems are generally located in areas close to the load, and can cover the multi-energy demands of users within a range of several square kilometers. For example, a regional integrated energy system is provided by supplying energy to users by using a cogeneration unit. In a regional comprehensive energy system, multi-energy complementation can be realized through multi-energy cooperation, the energy supply efficiency is improved, and sustainable development is promoted.
In an integrated energy system, the energy storage device plays a significant role, and it can assist the energy system in increasing the consumption rate of renewable energy and reducing the energy price for the user. Energy storage promotes economic and stable operation of the system by scheduling the load across time periods. However, most energy storage equipment has high investment price and long investment period at present. Worldwide, mature large-scale energy storage technologies have not yet been developed. Deep research is still needed to realize the economic operation of the comprehensive energy system containing large-scale energy storage. Furthermore, some controllable loads may also be used to implement load scheduling across time periods, guided by economics. Therefore, the system can play a role of a virtual energy storage system by analyzing and utilizing the characteristics of the controllable load at the user side.
In summary, how to construct virtual energy storage by using controllable load, access the integrated energy system, and improve the operation flexibility and renewable energy consumption capability of the integrated energy system is a problem that needs to be solved urgently at present.
Disclosure of Invention
The utility model provides a regional comprehensive energy system who contains joint virtual energy storage is favorable to solving among the above-mentioned background art comprehensive energy system renewable energy consumption ability not enough and the not enough problem of operation economic nature.
The utility model adopts the following technical scheme.
A regional integrated energy system with joint virtual energy storage comprises energy supply equipment, energy conversion and storage equipment, energy utilization load equipment (3) and an energy network (4); the energy supply equipment (1) supplies energy to the energy conversion and storage equipment (2) through an energy network; the energy conversion and storage equipment supplies energy to the electric load equipment; the energy conversion and storage device comprises a virtual energy storage device; the virtual energy storage equipment comprises an electric automobile charging load and a controllable air conditioner load; the energy conversion and energy storage equipment optimizes the utilization efficiency of energy supply to the energy supply equipment by adjusting the power consumption of the charging load of the electric automobile and the controllable air conditioner load during energy storage.
The energy supply equipment comprises a photovoltaic power generation assembly (11), a wind power generation assembly (12) and a gas turbine (13); the photovoltaic power generation assembly and the wind power generation assembly provide electric energy for energy conversion and energy storage equipment through a power grid (41); the gas turbine is driven by natural gas from a natural gas supply network (44) to which it is connected.
The energy conversion and storage equipment comprises electric storage equipment (21), a heat pump (22), an electric refrigerator (23), an absorption refrigerator (24) and a heat storage tank (25); the gas turbine provides thermal energy to an energy conversion and storage device via a thermal energy network (42);
the electric storage equipment is connected with electric load equipment of a power grid, and performs charging operation or discharging operation according to the load of the electric load equipment so as to stabilize the peak-valley difference of the electric power;
the heat pump is driven by electric energy of a power grid and collects low-grade heat in the environment of the heat pump to a heat energy network;
the electric refrigerator is driven by electric energy of a power grid and supplies cold power to a cold energy network;
the absorption refrigerator provides cold power for a cold energy network to refrigerate and provides heat energy for a heat energy network by utilizing the waste heat of the environment;
the heat storage tank performs heat absorption operation or heat release operation on the heat energy network according to the supplied energy of the heat energy network so as to optimize the stability of the heat energy output of the heat energy network.
The electric load equipment comprises electric load equipment (31), virtual energy storage equipment, cold load equipment (34) and hot load equipment (35);
the cold load equipment and the heat load equipment are energy utilization equipment in the civil field, and the cold load and the heat load fluctuate along with time;
the virtual energy storage device comprises a controllable electric automobile charging load (32) and a controllable air conditioning load (33); the virtual energy storage device is used for stabilizing an energy utilization curve of the electric load device and improving the electricity utilization efficiency through load transfer operation according to time periods.
When the controllable charging load of the electric automobile executes load transfer operation according to time periods, the load transfer operation is matched with the power utilization requirement of the electric automobile.
And the charging load of the electric automobile is borne by the charging pile with adjustable charging power.
The controllable air-conditioning load is used for adjusting the indoor temperature of the building, and when the controllable air-conditioning load carries out load transfer operation according to time periods, the load transfer operation is matched with the power consumption requirement for adjusting the indoor temperature of the building within a comfortable range.
The energy network comprises a power grid, a heat energy network, a cold energy network and a natural gas supply network;
the power grid is connected with the photovoltaic power generation assembly, the wind power generation assembly, the gas turbine, the electric power storage equipment, the heat pump, the power load and the electric automobile charging load;
the heat energy network is connected with the gas turbine, the heat pump, the absorption refrigerator, the heat storage tank and the heat load;
the cold energy network is connected with the electric refrigerator, the absorption refrigerator, the controllable air conditioning load and the cold load;
the natural gas supply network is connected with the gas turbine.
Compared with the prior art, the regional comprehensive energy system containing the joint virtual energy storage integrates energy supply equipment, an energy network, energy conversion and storage equipment and energy utilization load, and realizes simultaneous response of the multi-energy demands of users through multi-energy joint supply; the peak regulation capacity of the energy network is improved through the multi-energy storage system; the charging load of the electric automobile and the controllable air conditioner load are used as the combined virtual energy storage, and the combined virtual energy storage is scheduled, so that the consumption level of new energy such as power grid wind power, photovoltaic and the like is improved, the energy utilization efficiency is improved, and the efficient synchronous supply of various energy sources is realized.
Drawings
The invention will be described in further detail with reference to the following drawings and detailed description:
FIG. 1 is a schematic diagram of the present invention;
in the figure: 1-energy supply equipment; 2-energy conversion and storage devices; 3-loading the equipment with energy; 4-an energy network;
11-a photovoltaic power generation assembly; 12-a wind power generation assembly; 13-a gas turbine;
21-an electrical storage device; 22-a heat pump; 23-an electric refrigerator; 24-absorption chiller; 25-heat storage tank;
31-an electrical load device; 32-electric vehicle charging load; 33-controllable air conditioning load; 34-using a cold load device; 35-load the equipment with heat;
41-the grid; 42-thermal energy network; 43-cold energy network; 44-Natural gas supply network.
Detailed Description
As shown in the figure, the regional integrated energy system with the joint virtual energy storage comprises an energy supply device, an energy conversion and storage device, an energy load device 3 and an energy network 4; the energy supply equipment 1 supplies energy to the energy conversion and storage equipment 2 through an energy network; the energy conversion and storage equipment supplies energy to the electric load equipment; the energy conversion and storage device comprises a virtual energy storage device; the virtual energy storage equipment comprises an electric automobile charging load and a controllable air conditioner load; the energy conversion and energy storage equipment optimizes the utilization efficiency of energy supply to the energy supply equipment by adjusting the power consumption of the charging load of the electric automobile and the controllable air conditioner load during energy storage.
The energy supply equipment comprises a photovoltaic power generation assembly 11, a wind power generation assembly 12 and a gas turbine 13; the photovoltaic power generation assembly and the wind power generation assembly provide electric energy for the energy conversion and energy storage equipment through the power grid 41; the gas turbine is driven by natural gas from its natural gas supply network 44.
The energy conversion and storage equipment comprises an electric storage device 21, a heat pump 22, an electric refrigerator 23, an absorption refrigerator 24 and a heat storage tank 25; the gas turbine provides thermal energy to the energy conversion and storage device via a thermal energy network 42;
the electric storage equipment is connected with electric load equipment of a power grid, and performs charging operation or discharging operation according to the load of the electric load equipment so as to stabilize the peak-valley difference of the electric power;
the heat pump is driven by electric energy of a power grid and collects low-grade heat in the environment of the heat pump to a heat energy network;
the electric refrigerator is driven by electric energy of a power grid and supplies cold power to a cold energy network;
the absorption refrigerator provides cold power for a cold energy network to refrigerate and provides heat energy for a heat energy network by utilizing the waste heat of the environment;
the heat storage tank performs heat absorption operation or heat release operation on the heat energy network according to the supplied energy of the heat energy network so as to optimize the stability of the heat energy output of the heat energy network.
The electric load equipment comprises electric load equipment 31, virtual energy storage equipment, cold load equipment 34 and hot load equipment 35;
the cold load equipment and the heat load equipment are energy utilization equipment in the civil field, and the cold load and the heat load fluctuate along with time;
the virtual energy storage device comprises a controllable electric automobile charging load 32 and a controllable air conditioner load 33; the virtual energy storage device is used for stabilizing an energy utilization curve of the electric load device and improving the electricity utilization efficiency through load transfer operation according to time periods.
When the controllable charging load of the electric automobile executes load transfer operation according to time periods, the load transfer operation is matched with the power utilization requirement of the electric automobile.
And the charging load of the electric automobile is borne by the charging pile with adjustable charging power.
The controllable air-conditioning load is used for adjusting the indoor temperature of the building, and when the controllable air-conditioning load carries out load transfer operation according to time periods, the load transfer operation is matched with the power consumption requirement for adjusting the indoor temperature of the building within a comfortable range.
The energy network comprises a power grid, a heat energy network, a cold energy network and a natural gas supply network;
the power grid is connected with the photovoltaic power generation assembly, the wind power generation assembly, the gas turbine, the electric power storage equipment, the heat pump, the power load and the electric automobile charging load;
the heat energy network is connected with the gas turbine, the heat pump, the absorption refrigerator, the heat storage tank and the heat load;
the cold energy network is connected with the electric refrigerator, the absorption refrigerator, the controllable air conditioning load and the cold load;
the natural gas supply network is connected with the gas turbine.
Example (b):
as shown in fig. 1, the utility model discloses a regional comprehensive energy system who contains joint virtual energy storage, including energy supply equipment 1, energy conversion and energy storage equipment 2, with energy load 3 and energy network 4. The energy supply device 1 comprises a photovoltaic power generation assembly 11, a wind power generation assembly 12 and a gas turbine 13. The photovoltaic power generation assembly 11 is connected with a power grid 41, and the generated electric power is directly connected to the power grid; the wind power generation assembly 12 is connected with a power grid 41, and the generated power is directly connected to the grid; the gas turbine 13 has a gas supply inlet connected to the natural gas network 44, a power supply outlet connected to the power grid 41 and a heat supply outlet connected to the thermal energy network 42.
The energy conversion and storage apparatus 2 includes an electric storage apparatus 21, a heat pump 22, an electric refrigerator 23, an absorption refrigerator 24, and a heat storage tank 25. The electrical storage device 21 (storage battery) is directly connected to the grid 41, and discharges to supply power to the grid 41 when the electrical load is high, and charges to absorb electric power from the grid 41 when the electrical load is low; the power supply inlet of the heat pump 22 is connected with the power grid 41, and the heat supply outlet is connected with the thermal energy network 42; the power supply inlet of the electric refrigerator 23 is connected with the power grid 41, and the cold supply outlet is connected with the 43 cold energy network; the power supply inlet of the absorption refrigerator is connected with a power grid 41, the heat supply outlet is connected with a heat energy network 42, and the cold supply outlet is connected with a cold energy network 43; the heat storage tank 25 is directly connected to the thermal energy network 42, and releases heat to power the thermal energy network 42 when the heat load is high and absorbs heat to absorb power from the thermal energy network 42 when the heat load is low.
The energy-consuming loads 3 include an electric power load 31, an electric vehicle charging load 32, a controllable air-conditioning load 33, a cooling load 34, and a heating load 35. The power load 31 is directly connected with the power grid 41 and obtains electric energy from the power grid 41; the electric vehicle charging load 32 is directly connected with the power grid 41 and obtains electric energy from the power grid 41; the controllable air-conditioning load 33 is directly connected with the cold energy network 43 to obtain cold energy from the cold energy network 43; the cold load 34 (using cold load equipment) is directly connected with the cold energy network 43 to obtain cold energy from the cold energy network 43; the thermal load 35 (with the thermal load device) is connected directly to the thermal energy network 42, and thermal energy is taken from the thermal energy network 42.
The energy network 4 comprises an electric network 41, a heat energy network 42, a cold energy network 43 and a natural gas network 44, wherein the electric network 41 is connected with the photovoltaic power generation assembly 11, the wind power generation assembly 12, the gas turbine 13, the electric storage device 21, the heat pump 22, the electric refrigerator 23, the absorption refrigerator 24, the electric load 31 and the electric vehicle charging load 32; the heat energy network 42 is connected with the gas turbine 13, the heat pump 22, the absorption refrigerator 24, the heat storage tank 25 and the heat load 35; the cold energy network is connected with the electric refrigerator 23, the absorption refrigerator 24, the controllable air conditioning load 33 and the cooling load 34; a natural gas network 44 (natural gas supply network) is connected to the gas turbine 13.
The regional comprehensive energy system with the combined virtual energy storage has the specific working process that:
first, after the devices are mounted and connected, the photovoltaic power generation module 11, the wind power generation module 12, and the gas turbine 13 supply power to the grid 41, and the grid 41 supplies power to the heat pump 22, the electric refrigerator 23, the absorption refrigerator 24, the power load 31, and the electric vehicle charging load 32, and when the power load is large, the electric storage device 21 discharges power to achieve an auxiliary power supply effect, and the electric vehicle charging load 32 is reduced as much as possible to control the total load, and when the power load is small, the electric storage device 21 absorbs power from the grid 41, and the electric vehicle charging load 32 is also increased appropriately. The gas turbine 13, the heat pump 22 and the absorption chiller 24 provide heat energy to the heat energy network 42, the heat energy network 42 provides heat energy for the heat load 35, the heat storage tank 25 releases heat to provide auxiliary heat when the overall heat load is large, and the heat storage tank 25 absorbs heat from the heat energy network 42 when the overall heat load is small. The electric refrigerator 23 and the absorption refrigerator 24 supply cold to the cold energy network 43, the cold energy network 43 provides cold energy for the controllable air conditioning load 33 and the cold load 34, when the cold energy load is large, the controllable air conditioning load 33 is reduced as much as possible on the premise of ensuring that the temperature of the building can meet the requirement, and when the cold energy load is small, the controllable air conditioning load 33 is properly improved to ensure the stability of the cold energy requirement.
It should be finally noted that the above only serves to illustrate the technical solution of the present invention, and not to limit the scope of the present invention, and that simple modifications or equivalent replacements performed by those skilled in the art to the technical solution of the present invention do not depart from the spirit and scope of the technical solution of the present invention.
Claims (8)
1. A regional comprehensive energy system containing joint virtual energy storage is characterized in that: the comprehensive energy system comprises energy supply equipment, energy conversion and storage equipment, energy utilization load equipment and an energy network; the energy supply equipment supplies energy to the energy conversion and storage equipment through an energy network; the energy conversion and storage equipment supplies energy to the electric load equipment; the energy conversion and storage device comprises a virtual energy storage device; the virtual energy storage equipment comprises an electric automobile charging load and a controllable air conditioner load; the energy conversion and energy storage equipment optimizes the utilization efficiency of energy supply to the energy supply equipment by adjusting the power consumption of the charging load of the electric automobile and the controllable air conditioner load during energy storage.
2. The regional integrated energy system with joint virtual energy storage according to claim 1, wherein: the energy supply equipment comprises a photovoltaic power generation assembly, a wind power generation assembly and a gas turbine; the photovoltaic power generation assembly and the wind power generation assembly provide electric energy to the energy conversion and storage equipment through the power grid; the gas turbine is driven by natural gas of a natural gas supply network to which the gas turbine is connected.
3. The regional integrated energy system with joint virtual energy storage according to claim 2, wherein: the energy conversion and storage equipment comprises electric power storage equipment, a heat pump, an electric refrigerator, an absorption refrigerator and a heat storage tank; the gas turbine provides heat energy to the energy conversion and storage equipment through a heat energy network;
the electric storage equipment is connected with electric load equipment of a power grid, and performs charging operation or discharging operation according to the load of the electric load equipment so as to stabilize the peak-valley difference of the electric power;
the heat pump is driven by electric energy of a power grid and collects low-grade heat in the environment of the heat pump to a heat energy network;
the electric refrigerator is driven by electric energy of a power grid and supplies cold power to a cold energy network;
the absorption refrigerator provides cold power for a cold energy network to refrigerate and provides heat energy for a heat energy network by utilizing the waste heat of the environment;
the heat storage tank performs heat absorption operation or heat release operation on the heat energy network according to the supplied energy of the heat energy network so as to optimize the stability of the heat energy output of the heat energy network.
4. The regional integrated energy system with joint virtual energy storage according to claim 1, wherein: the power load equipment comprises power load equipment, virtual energy storage equipment, cold load equipment and heat load equipment;
the cold load equipment and the heat load equipment are energy utilization equipment in the civil field, and the cold load and the heat load fluctuate along with time;
the virtual energy storage equipment comprises a controllable electric automobile charging load and a controllable air conditioner load; the virtual energy storage device is used for stabilizing an energy utilization curve of the electric load device and improving the electricity utilization efficiency through load transfer operation according to time periods.
5. The regional integrated energy system with joint virtual energy storage according to claim 4, wherein: when the controllable charging load of the electric automobile executes load transfer operation according to time periods, the load transfer operation is matched with the power utilization requirement of the electric automobile.
6. The regional integrated energy system with joint virtual energy storage according to claim 5, wherein: and the charging load of the electric automobile is borne by the charging pile with adjustable charging power.
7. The regional integrated energy system with joint virtual energy storage according to claim 5, wherein: the controllable air-conditioning load is used for adjusting the indoor temperature of the building, and when the controllable air-conditioning load carries out load transfer operation according to time periods, the load transfer operation is matched with the power consumption requirement for adjusting the indoor temperature of the building within a comfortable range.
8. The regional integrated energy system with joint virtual energy storage according to claim 5, wherein: the energy network comprises a power grid, a heat energy network, a cold energy network and a natural gas supply network;
the power grid is connected with the photovoltaic power generation assembly, the wind power generation assembly, the gas turbine, the electric power storage equipment, the heat pump, the power load and the electric automobile charging load;
the heat energy network is connected with the gas turbine, the heat pump, the absorption refrigerator, the heat storage tank and the heat load;
the cold energy network is connected with the electric refrigerator, the absorption refrigerator, the controllable air conditioning load and the cold load;
the natural gas supply network is connected with the gas turbine.
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| CN202120804174.9U CN214543643U (en) | 2021-04-20 | 2021-04-20 | Regional comprehensive energy system containing joint virtual energy storage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114759610A (en) * | 2022-04-06 | 2022-07-15 | 上海电气工程设计有限公司 | Wind and light combustion and storage integrated energy system based on wind and light virtual synchronous machine |
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2021
- 2021-04-20 CN CN202120804174.9U patent/CN214543643U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114759610A (en) * | 2022-04-06 | 2022-07-15 | 上海电气工程设计有限公司 | Wind and light combustion and storage integrated energy system based on wind and light virtual synchronous machine |
| CN114759610B (en) * | 2022-04-06 | 2024-05-10 | 上海电气工程设计有限公司 | Wind-light combustion comprehensive energy system based on wind-light virtual synchronous machine |
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