CN216114431U

CN216114431U - Building multi-ring source-saving network load storage interaction management and control system

Info

Publication number: CN216114431U
Application number: CN202121809069.0U
Authority: CN
Inventors: 高红均; 尚梦琪; 贺帅佳; 李海波
Original assignee: Sichuan University; Sichuan Energy Internet Research Institute EIRI Tsinghua University
Current assignee: Sichuan University; Sichuan Energy Internet Research Institute EIRI Tsinghua University
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-03-22
Anticipated expiration: 2031-08-04

Abstract

The utility model discloses a building multi-ring energy-saving network load storage interactive management and control system, which belongs to the field of building comprehensive energy management and control, wherein the energy supply energy of the utility model comprises clean energy such as photovoltaic power generation and natural gas, the coupling and conversion of energy between systems can be realized, new energy supply forms and energy utilization modes are added on the existing energy system, the increasing energy diversification requirements are met, the energy utilization choices of building users are enriched, the users can be guided to reasonably select the energy supply modes when needed, the energy utilization cost is reduced, the economic performance is improved, and the diversification of the energy supply systems ensures that other energy supply systems can be replaced in time when a certain energy supply system link fails, the continuous energy supply for building loads is ensured, the improvement rate is 10 percent, and the photovoltaic utilization rate is as high as 95 percent, the stability of the energy supply system is greatly improved, and the energy consumption requirements of various terminal energy consumption devices can be met.

Description

Building multi-ring source-saving network load storage interaction management and control system

Technical Field

The utility model relates to the field of building comprehensive energy management and control, in particular to a building multi-ring source-saving network load storage interaction management and control system.

Background

With the annual rise of the number of buildings, people gradually take the measures of building internal integration. The energy demand of a comprehensive building is various, and the energy consumption systems of the building are also various, and the energy demand systems are connected with each other in the energy supply and demand system of the building. The energy input of the building comprehensive energy system is energy obtained from an upper network, and various forms of energy are output through equipment such as energy supply, conversion, storage and the like in the system, so that energy is finally provided for terminal users in the building. Due to the fact that unreasonable building energy structures exist for a long time, the diversity of building internal energy supply systems and the flexibility of terminal energy utilization equipment, the fact that the buildings have huge potential in the aspect of improving energy efficiency can be known. Therefore, based on multi-ring energy-saving network load storage interaction, the building comprehensive energy is subjected to optimization management and control research, and the purposes of improving the utilization rate of the building comprehensive energy, reducing daily operating cost of the building and the like are favorably achieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a building multi-ring energy-saving network load storage interaction control system which comprises a photovoltaic power generation system, an energy storage system, a gas turbine, a waste heat boiler, a user air conditioner, an absorption refrigerator, building users and an energy network, wherein the energy network comprises a power grid, a natural gas network and a heat network, and the energy storage system comprises a storage battery, a heat storage tank and a cold storage tank;

photovoltaic power generation system, battery access electric wire netting and are incorporated into the power networks and move, the power supply that the electric wire netting supplied power can provide building user, the natural gas net does the gas turbine function, gas turbine inserts the electric wire netting and provides the electric energy, the medium temperature flue gas that gas turbine produced lets in exhaust-heat boiler, converts low temperature hot flue gas into, partly energy and the low temperature hot flue gas combined action of heat supply network provide heat energy for building user, another part energy of heat supply network converts through the absorption refrigerator, provides the cold energy for building user.

Preferably, the building user's demand includes electrical load, user's air conditioner, heat load, cold load, the electrical energy is provided for electrical load, electrical load converts cold load into through building air conditioner, heat energy is provided for heat load, cold energy is provided for cold load.

Preferably, the heat storage tank is communicated with an output end of the heat supply network for supplying heat energy to the building.

Preferably, the cold storage tank is communicated with a cold energy output end of the absorption refrigerator.

Preferably, the energy storage system is used for reducing the dependence of the building on the power grid during peak hours.

Preferably, the electrical loads of the building users are divided, and a part of the loads are divided into translatable loads.

Preferably, the photovoltaic power generation system only generates electric energy, and the power of the generated electric energy is proportional to the illumination intensity.

Preferably, the user air conditioner obtains the cold energy by consuming the electric energy, and the refrigerating capacity output by the user air conditioner is in proportion to the electric power consumed by the user air conditioner.

Compared with the prior art, the utility model has the beneficial technical effects that:

the energy supply energy comprises clean energy such as photovoltaic power generation and natural gas, coupling and conversion of energy between systems can be realized, new energy supply forms and energy utilization modes are added to the existing energy system, the increasing energy diversification requirements are met, energy utilization choices of building users are enriched, and users can be guided to reasonably select energy supply modes when needed, so that energy consumption cost is reduced, economic performance is improved, the diversification of the energy supply systems ensures that other energy supply systems can be replaced in time when a certain energy supply system link fails, the building load can be continuously supplied with energy, the energy efficiency improvement rate reaches 10%, the photovoltaic utilization rate reaches 95%, the stability of the energy supply systems is greatly improved, and the energy utilization requirements of various terminal energy consumption devices can be met.

Drawings

Fig. 1 shows a schematic diagram of a building multi-ring energy-saving network load storage interaction management and control system.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to fig. 1 of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other implementations made by those of ordinary skill in the art based on the embodiments of the present invention are obtained without inventive efforts.

In the description of the present invention, it is to be understood that the terms "counterclockwise", "clockwise", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used for convenience of description only, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting.

As shown in fig. 1, a building multi-ring energy-saving network charge storage interaction management and control system comprises a photovoltaic power generation system, an energy storage system, a gas turbine, a waste heat boiler, a user air conditioner, an absorption refrigerator, building users and an energy network, wherein the energy network comprises a power grid, a natural gas network and a heat network, and the energy storage system comprises a storage battery, a heat storage tank and a cold storage tank;

As shown in fig. 1, specifically, the demand of the building user includes an electrical load, a user air conditioner, a thermal load, and a cold load, the electrical energy is provided to the electrical load, the electrical load is converted into the cold load by the building air conditioner, the thermal energy is provided to the thermal load, and the cold energy is provided to the cold load.

The main sources of the electric energy are an electric network, a photovoltaic power generation system and a gas turbine for power generation, when the electric energy is used for supplying power to building users, a part of the electric energy is also stored in a storage battery, when the electric network, the photovoltaic energy and the gas turbine power generation power are difficult to meet the building user requirements, the electric energy stored in the storage battery can be called to supply energy to the building users, the energy requirements of the building users are guaranteed, the photovoltaic power generation system and the storage battery are both connected into the electric network for grid-connected operation, the three power supply sources of the photovoltaic power generation system, the storage battery and the electric network are mutually standby, if one of the three power supply sources fails, the energy utilization reliability of the end users is not influenced, if the energy supply of the photovoltaic power generation system fails, the storage battery and the electric network can continue to provide the electric energy for the building users, the stability of the energy supply system is guaranteed, and meanwhile, the peak clipping and valley filling effects can be performed on the electric network.

Specifically, the heat storage tank is communicated with an output end of a heat supply network for providing heat energy for the building.

Specifically, the cold storage tank is communicated with a cold energy output end of the absorption refrigerator.

In particular, the energy storage system is used for reducing the dependence of buildings on the power grid during peak periods.

When the low-temperature hot flue gas generated in the heat supply network and the waste heat boiler supplies energy to the heat load of a building user, part of heat energy is stored in the heat storage tank, when the heat energy power generated by the heat supply network or the waste heat boiler is difficult to meet the user requirement, the heat energy stored in the heat storage tank can be called to supply energy to the building user, and the heat energy supply can be continuously performed to the building user under the condition that the heat supply network or the waste heat boiler fails, so that the peak clipping and valley filling effects are also achieved;

the cold energy after the conversion of the absorption refrigerator is when supplying energy for the cold load of a building user, part of the cold energy is also stored in the cold storage tank, when the cold energy power generated by the absorption refrigerator or a user air conditioner is difficult to meet the user demand, the cold energy stored in the cold storage tank can be called to supply energy for the building user, the cold energy can be supplied for the building continuously under the condition that the absorption refrigerator or the user air conditioner breaks down, and the cold energy supply system can also play a role in peak clipping and valley filling.

Specifically, the electrical loads of the building users are divided, and a part of the loads are divided into translatable loads.

The translatable load can be controlled as required, if the use of the movable load is reduced in the peak period of the electricity price, the reduced movable load is changed into the operation at the moment in the valley period of the electricity price, the energy efficiency is improved by 10%, the photovoltaic utilization rate is up to 95%, the stability of an energy supply system is greatly improved, and various energy utilization requirements can be met.

Specifically, the photovoltaic power generation system only generates electric energy, and the power of the generated electric energy is in direct proportion to the illumination intensity.

Specifically, the user air conditioner obtains cold energy by consuming electric energy, and the refrigerating capacity output by the user air conditioner is in direct proportion to the consumed electric power.

Claims

1. A building multi-ring energy-saving network charge storage interaction control system is characterized by comprising a photovoltaic power generation system, an energy storage system, a gas turbine, a waste heat boiler, a user air conditioner, an absorption refrigerator, building users and an energy network, wherein the energy network comprises a power grid, a natural gas network and a heat network, and the energy storage system comprises a storage battery, a heat storage tank and a cold storage tank;

2. The building multi-ring energy-saving network load storage interaction management and control system as claimed in claim 1, wherein the building user's demand includes electrical load, user air conditioner, thermal load, and cold load, the electrical energy is provided to the electrical load, the electrical load is converted to the cold load through the building air conditioner, the thermal energy is provided to the thermal load, and the cold energy is provided to the cold load.

3. The building multi-ring energy-saving network load storage interactive management and control system as claimed in claim 1, wherein the heat storage tank is communicated with an output end of the heat supply network for providing heat energy for the building.

4. The building multi-ring energy-saving network load storage interaction management and control system as claimed in claim 1, wherein the cold storage tank is communicated with a cold energy output end of the absorption refrigerator.

5. The building multi-ring source-saving network charge storage interactive management and control system as claimed in claim 1, wherein the energy storage system is used for reducing the dependency of the building on the power grid during the peak period.

6. The building multi-ring energy-saving network load storage interaction management and control system as claimed in claim 1, wherein the electrical loads of the building users are divided, and a part of the loads are divided into translatable loads.

7. The building multi-ring energy-saving network load storage interaction management and control system as claimed in claim 1, wherein the photovoltaic power generation system only generates electric energy, and the generated electric energy power is in direct proportion to the illumination intensity.

8. The system as claimed in claim 1, wherein the user air conditioner consumes electric energy to obtain cooling energy, and the cooling capacity output by the user air conditioner is proportional to the electric power consumed by the user air conditioner.