CN220689409U - Cold, heat and electricity integrated energy supply system of green comprehensive energy station - Google Patents
Cold, heat and electricity integrated energy supply system of green comprehensive energy station Download PDFInfo
- Publication number
- CN220689409U CN220689409U CN202321851765.7U CN202321851765U CN220689409U CN 220689409 U CN220689409 U CN 220689409U CN 202321851765 U CN202321851765 U CN 202321851765U CN 220689409 U CN220689409 U CN 220689409U
- Authority
- CN
- China
- Prior art keywords
- cold
- energy
- alternating current
- supply system
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005611 electricity Effects 0.000 title claims abstract description 12
- 238000010248 power generation Methods 0.000 claims abstract description 32
- 238000004146 energy storage Methods 0.000 claims abstract description 30
- 238000005338 heat storage Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 20
- 238000009825 accumulation Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000005265 energy consumption Methods 0.000 claims description 4
- 230000010354 integration Effects 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
A cold, heat and electricity integrated energy supply system of a green comprehensive energy station comprises an alternating current power supply system, a direct current power supply system, a cold and heat supply system and a comprehensive energy station management and control center. The utility model constructs a cold-heat-electricity integrated energy supply system of the green comprehensive energy station, which is used for regional cold, heat and electric power supply, has the self-supporting, storage and absorption capabilities of energy sources, and realizes the energy source intercommunication between cold energy and heat energy and electric energy; the green energy sources such as photovoltaic power generation, wind power generation, combined cold, heat and power supply, ground source heat pump and the like are organically combined into a whole, and meanwhile, the peak clipping and valley filling, load stabilization, peak Gu Tao benefit and energy integration of the energy sources are realized through configuration of an energy storage system and a cold and heat storage system. The cold, heat and electricity integrated energy supply system of the green comprehensive energy station fully utilizes renewable and green energy sources, and improves the comprehensive benefit of the whole station.
Description
Technical Field
The application relates to an electric power energy green energy supply system, in particular to a cold-hot electricity integrated energy supply system of a green comprehensive energy station.
Background
The current user power supply mainly depends on a large power grid to supply power, the main mode of cooling and heating for the south user is self-purchasing and self-using of the air conditioning equipment, the characteristics of centralized power supply and dispersed cooling and heating power supply are presented, meanwhile, the air conditioning equipment basically depends on the power grid to supply power, and especially in the south area, during the period of high peak of the power, the cooling power load reaches more than 40% of the power grid load at maximum. The most outstanding problem of user side energy supply mainly shows that the energy supply and the digestion in the regional interior are unbalanced, the dependence on a large power grid is strong, the utilization rate of green energy at the user side is low, the energy conveying loss is large, the comprehensive energy supply efficiency is low, and the like.
Aiming at the current energy supply characteristics and problems, if a city centralized energy supply system is also adopted for cooling and heating, the construction implementation difficulty is too great for the southern area without relevant planning.
Disclosure of Invention
The utility model aims to overcome the defects of unbalanced energy supply and consumption, strong dependence on a large power grid, low utilization rate of green energy at a user side, high energy transmission loss, low comprehensive energy supply efficiency and the like in the prior art, and provides the cold-heat-electricity integrated energy supply system of the green comprehensive energy station, which provides three energy sources of cold, heat and electricity for a local area, reduces the energy transmission consumption and improves the comprehensive energy utilization efficiency.
The utility model solves the technical problems by adopting a technical scheme that the cold-hot electricity integrated energy supply system of the green comprehensive energy station comprises an alternating current power supply system, a direct current power supply system, a cold supply and heat supply system and a comprehensive energy station management and control center.
Further, the alternating current power supply system comprises a 380V alternating current bus I, a 10kV external circuit I, a 10kV transformer I, a wind power generation system I, an energy storage system I, an alternating current load I, a 380V alternating current bus II, a 10kV external circuit II, a 10kV transformer II, a wind power generation system II, an energy storage system II, an alternating current load II and a sectional switch; the 380V alternating current bus I and the 380V alternating current bus II are connected through a sectionalizing switch; the 10kV external circuit I is connected with the 380V alternating current bus I through a 10kV transformer I; and the 10kV external circuit II is connected with the 380V alternating current bus II through a 10kV transformer II.
Further, the alternating current power supply system further comprises a switch I and a switch II, and the direct current power supply system comprises a 220V direct current bus, a charging pile, a photovoltaic power generation system, an energy storage system III, a PCS converter and a direct current load; the PCS converter is connected with the 380V alternating current bus I through the switch I and the 380V alternating current bus II through the switch II respectively, and the switch I and the switch II are mutually locked.
Further, the cooling and heating system comprises a cooling, heating and power triple supply system I, a ground source heat pump system I, a cold accumulation and heat accumulation system I, a cooling, heating and power triple supply system II, a ground source heat pump system II, a cold accumulation and heat accumulation system II, an air conditioner cold (hot) water supply pipe, an air conditioner cold (hot) water return pipe and a cold and hot load, and the cooling and heating system is respectively connected with the alternating current output end of the alternating current bus I of the alternating current power supply system 380V and the alternating current output end of the alternating current bus II of the alternating current power supply system 380V.
Furthermore, the comprehensive energy station management and control center coordinates the operation of the alternating current power supply system, the direct current power supply system and the cooling and heating system according to the energy supply conditions of the wind power generation system I, the wind power generation system II, the photovoltaic power generation system, the ground source heat pump system I, the ground source heat pump system II, the cooling and heating three-way power supply system I and the cooling and heating three-way power supply system II, the energy consumption conditions of the charging pile, the alternating current load I, the alternating current load II, the direct current load and the cooling and heating load, and the energy storage conditions of the energy storage system I, the energy storage system II, the energy storage system III, the cold storage and heat storage system I and the cold storage and heat storage system II.
The application has the following beneficial technical effects:
1. the system comprises an alternating current power supply system, a direct current power supply system, a cold and heat supply system and a comprehensive energy station management and control center, wherein the direct current power supply system and the cold and heat supply system are respectively connected with the alternating current power supply system, and the environment-friendly comprehensive energy cold and heat and electricity integrated energy supply system is built through the structure, so that the intercommunication among direct current electric energy, alternating current electric energy and cold and heat energy can be realized, and the energy complementation of electric energy and cold and heat energy is realized; 2. the technology fully adopts green energy and renewable energy, mainly comprises wind power generation, photovoltaic power generation, gas-fired cold-heat-power-electricity triple supply, ground source heat pump systems and the like, and is energy-saving, emission-reducing and environment-friendly; 3. the technology fully adopts an energy storage technology and a cold and heat storage technology to realize peak clipping and valley filling, load stabilization and energy integration, so that the comprehensive energy station has flexibility and inclusion; by adopting the comprehensive energy station management and control center, the self-supporting, storage and digestion capacities of regional energy sources are improved according to various operation requirements and control strategies of the comprehensive energy stations, and the comprehensive benefits of the whole station are improved.
The utility model constructs a distributed and regional cold-hot-electricity integrated energy supply system, which not only can solve the problem of centralized cold supply and heat supply and improve the comfort level of life, but also can effectively utilize green energy and realize regional energy supply balance. The cold-hot-electricity integrated energy supply system can be built at the user side by utilizing various green energy sources according to natural resource endowments of the system, so that the self-supply, storage and consumption of the energy sources of the system are realized, the energy source conveying consumption is reduced, and the comprehensive energy source utilization efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a cold-heat-electricity integrated energy supply system of a green comprehensive energy station.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, the embodiment includes an ac power supply system, a dc power supply system, a cooling and heating system, and a comprehensive energy station management and control center. The alternating current power supply system consists of a 380V alternating current bus I, a 10kV external circuit I, a 10kV transformer I, a wind power generation system I, an energy storage system I, a switch I, an alternating current load I, a 380V alternating current bus II, a 10kV external circuit II, a 10kV transformer II, a wind power generation system II, an energy storage system II, a switch II, an alternating current load II and a sectionalizing switch; the direct current power supply system consists of a 220V direct current bus, a charging pile, a photovoltaic power generation system, an energy storage system III, a PCS converter and a direct current load; the cold and heat supply system consists of a cold and heat and electricity triple supply system I, a ground source heat pump system I, a cold and heat storage system I, a cold and heat and electricity triple supply system II, a ground source heat pump system II, a cold and heat storage system II, an air conditioner cold (hot) water supply pipe, an air conditioner cold (hot) water return pipe and a cold and heat load.
Specifically, a 380V alternating current bus I of an alternating current power supply system is connected with a 110kV external circuit I through a 10kV transformer I, and a 380V alternating current bus II of the alternating current power supply system is connected with a 110kV external circuit II through a 10kV transformer II.
The 10kV transformer I, the wind power generation system I, the energy storage system I, the switch I and the alternating current load I of the alternating current power supply system are connected to the 380V alternating current bus I, and the 10kV transformer II, the wind power generation system II, the energy storage system II, the switch II and the alternating current load II are connected to the 380V alternating current bus II. The 380V alternating current bus I and the 380V alternating current bus II are connected through a sectionalizing switch;
and the charging pile of the direct current power supply system, the photovoltaic power generation system, the energy storage system III, the PCS converter and the direct current load are connected to a 220V direct current bus.
The direct current power supply system is connected with the 380V alternating current bus I of the alternating current power supply system through a PCS converter through a switch I and is connected with the 380V alternating current bus II of the alternating current power supply system through a switch II, and the switch I and the switch II are mutually locked.
The cold-heat-electricity triple supply system I, the ground source heat pump system I, the cold-storage heat-storage system I, the cold-heat-electricity triple supply system II, the ground source heat pump system II and the cold-storage heat-storage system II of the cold and heat supply system supply energy to cold and hot loads through an air conditioner cold (hot) water supply pipe and an air conditioner cold (hot) water return pipe.
The cooling and heating system is respectively connected with the alternating current output end of the alternating current bus I of the alternating current power supply system 380V and the alternating current output end of the alternating current bus II of the alternating current power supply system 380V.
The comprehensive energy station management and control center coordinates the operation of the alternating current power supply system, the direct current power supply system and the cooling and heating system according to the energy supply condition of the cold and heat sources and the power supply of the system, the energy consumption condition of the load and the energy storage condition.
The working principle of the embodiment of the utility model is as follows:
1. the principle of internal and external regulation is adopted by adopting heat and electricity fixation and direct fixation and intersection. The energy supply of the cold and hot load of the cold and heat supply system is preferentially met, and the power supply of the cold and heat supply system is preferentially ensured by the alternating current power supply system; the direct current power supply system preferentially guarantees direct current power supply, and when the electric energy of the direct current power supply system is redundant, the direct current power supply system supplies power to the alternating current power supply system; when the direct current power supply system is in lack of electric energy, the alternating current power supply system supplies power to the direct current power supply system; the alternating current power supply system preferentially utilizes the power generation capacity of the comprehensive energy station to supply power, and when the power generation capacity of the comprehensive energy station is larger than the load power, the power is transmitted to the outside through a 10kV external circuit; when the power generated by the comprehensive energy station is smaller than the load power, electric energy is transmitted into the energy station through a 10kV external circuit;
2. in the cooling and heating system, a combined cooling, heating and power system is used as a power supply and a cold and heat source, the generated electric energy is transmitted to an alternating current power supply system, and the generated cold and heat energy supplies energy for cold and heat loads; the ground source heat pump system is used as a cold source, and the low-grade cold and heat energy at the ground source side is improved into high-grade cold and heat energy by utilizing the power supply of the alternating current power supply system to supply energy for cold and heat loads; the cold accumulation and heat accumulation system is used as an energy storage unit, redundant electric energy of the alternating current power supply system is utilized for accumulating cold or heat, and when the electric energy of the power supply system is insufficient or the cold and heat load peak is regulated, the cold accumulation and heat accumulation system is preferentially used for supplying energy to the cold and heat load;
3. the photovoltaic power generation system in the direct current power supply system is used as a power supply, when the power generation is sufficient, the power is supplied to the charging pile, the power is supplied to the direct current load, the power is charged to the energy storage system III, and the redundant electric energy is supplied to the power supply through the PCS converter, and is supplied to the 380V alternating current bus I through the switch I or is supplied to the 380V alternating current bus II through the switch II; when the photovoltaic power generation system does not generate power, the alternating current power supply system is used as a power supply, and a 380V alternating current bus I is used for supplying power to the direct current power supply system through a PCS converter through a switch I or a 380V alternating current bus II; the switch I and the switch II are mutually locked;
4. the system comprises an alternating current power supply system, a wind power generation system, a cold-heat-power triple supply system, an alternating current load, a ground source heat pump system, a cold accumulation heat accumulation system and an energy storage system, wherein the alternating current load and the ground source heat pump system are used as power supplies; when the power of the direct current power supply system is redundant, the direct current power supply system is used as a power supply, and when the power of the direct current power supply system is deficient, the direct current power supply system is used as a load;
5. A380V alternating current bus I and a 380V alternating current bus II in the alternating current power supply system are connected through a sectionalizing switch, and the 380V alternating current bus I and the 380V alternating current bus II are mutually reserved; the sectionalizing switch is in an open state when the system is in normal operation, and when the power supply on one bus fails, the sectionalizing switch is closed, and the other bus supplies power for loads of the two buses;
6. the alternating current power supply system preferentially utilizes electric energy generated by the wind power generation system, the photovoltaic power generation system and the combined cooling, heating and power supply system, and when the power generated by the comprehensive energy station is greater than the load power, the electric energy is transmitted outwards through a 10kV external circuit; when the power generated by the comprehensive energy station is smaller than the load power, electric energy is transmitted into the energy station through a 10kV external circuit;
7. the comprehensive energy station management and control center is used as a brain of a cold-heat-electricity integrated energy supply system of the green comprehensive energy station, and coordinates the operation of the alternating-current power supply system, the direct-current power supply system and the cold-heat supply system according to the energy supply conditions of the wind power generation system, the photovoltaic power generation system, the ground source heat pump system and the cold-heat-electricity triple power supply system, the energy consumption conditions of the charging pile, the alternating-current load, the direct-current load and the cold-heat load, the energy storage conditions of the energy storage system and the cold-heat storage system and the energy storage conditions of the energy storage system and the cold-heat storage system;
the foregoing are preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model. All equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (2)
1. The cold, heat and electricity integrated energy supply system of the green comprehensive energy station is characterized by comprising an alternating current power supply system, a direct current power supply system, a cold and heat supply system and a comprehensive energy station management and control center; the alternating current power supply system comprises a 380V alternating current bus I, a 10kV external circuit I, a 10kV transformer I, a wind power generation system I, an energy storage system I, an alternating current load I, a 380V alternating current bus II, a 10kV external circuit II, a 10kV transformer II, a wind power generation system II, an energy storage system II, an alternating current load II and a sectional switch; the 380V alternating current bus I and the 380V alternating current bus II are connected through a sectionalizing switch; the 10kV external circuit I is connected with the 380V alternating current bus I through a 10kV transformer I; the 10kV external circuit II is connected with the 380V alternating current bus II through a 10kV transformer II; the alternating current power supply system further comprises a switch I and a switch II, and the direct current power supply system comprises a 220V direct current bus, a charging pile, a photovoltaic power generation system, an energy storage system III, a PCS converter and a direct current load; the PCS converter is respectively connected with the 380V alternating current bus I through the switch I and the 380V alternating current bus II through the switch II, and the switch I and the switch II are mutually locked; the cooling and heating system comprises a cooling, heating and power triple supply system I, a ground source heat pump system I, a cold accumulation and heat accumulation system I, a cooling, heating and power triple supply system II, a ground source heat pump system II, a cold accumulation and heat accumulation system II, an air conditioner cold and hot water supply pipe, an air conditioner cold and hot water return pipe and a cold and hot load, and is respectively connected with an alternating current output end of an alternating current bus I of an alternating current power supply system 380V and an alternating current output end of an alternating current bus II of an alternating current power supply system 380V.
2. The integrated cold-heat-electricity energy supply system of the green comprehensive energy station according to claim 1 is characterized in that the comprehensive energy station management and control center coordinates the operation of the alternating current power supply system, the direct current power supply system and the cold-heat supply system according to the energy supply conditions of the wind power generation system I, the wind power generation system II, the photovoltaic power generation system, the ground source heat pump system I, the ground source heat pump system II, the cold-heat-electricity triple power supply system I and the cold-heat-electricity triple power supply system II, the energy consumption conditions of a charging pile, the alternating current load I, the alternating current load II, the direct current load and the cold-heat load, and the energy storage conditions of the energy storage system I, the energy storage system II, the energy storage system III, the cold storage and heat storage system I and the cold storage system II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321851765.7U CN220689409U (en) | 2023-07-14 | 2023-07-14 | Cold, heat and electricity integrated energy supply system of green comprehensive energy station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321851765.7U CN220689409U (en) | 2023-07-14 | 2023-07-14 | Cold, heat and electricity integrated energy supply system of green comprehensive energy station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220689409U true CN220689409U (en) | 2024-03-29 |
Family
ID=90374139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321851765.7U Active CN220689409U (en) | 2023-07-14 | 2023-07-14 | Cold, heat and electricity integrated energy supply system of green comprehensive energy station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220689409U (en) |
-
2023
- 2023-07-14 CN CN202321851765.7U patent/CN220689409U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208337178U (en) | Communication base station power supply ensures and electricity charge Optimal Control System | |
| CN103178553A (en) | Household hybrid power supply system | |
| CN202216337U (en) | Environment-friendly energy-saving air conditioner | |
| CN201797324U (en) | Intelligent microgrid | |
| CN214370668U (en) | House multi-energy combined supply system based on renewable energy sources | |
| CN105978010A (en) | Photovoltaic air-conditioning power supply control system and control method based on peak and valley price | |
| CN201750209U (en) | Variable frequency air-conditioning power supply system with wind energy and solar energy cooperated with commercial power complementarily | |
| CN104682533A (en) | Double-bus direct current ultra-micro grid system suitable for sustainable building | |
| CN116345511A (en) | Peak clipping and valley filling energy storage system and method applied to communication base station | |
| CN203352485U (en) | Solar photovoltaic refrigeration and heating system | |
| CN210921858U (en) | Multifunctional comprehensive utilization system of data center | |
| CN101424459A (en) | Novel energy resource central air-conditioning system | |
| CN220689409U (en) | Cold, heat and electricity integrated energy supply system of green comprehensive energy station | |
| CN202709303U (en) | Solar-energy and wind-energy air conditioner | |
| CN202024430U (en) | Solar air conditioner | |
| CN203722320U (en) | Double-bus excessively-miniature power grid system suitable for sustainable buildings | |
| CN201673399U (en) | Building energy intelligentized central control system | |
| CN208671400U (en) | A kind of energy supplying system of providing multiple forms of energy to complement each other using renewable energy | |
| CN102243490B (en) | Intelligentized central control system for building energy sources | |
| CN203151120U (en) | Household hybrid power supply system | |
| CN211345657U (en) | Energy-saving air conditioner capable of storing electricity | |
| CN114071963A (en) | Integrated cabinet powered and refrigerated by fuel cell and data center | |
| US20110080047A1 (en) | Solar power supply system supporting ac/dc power conversion loads | |
| CN201159514Y (en) | Cold air storage device with multiple electric powers for selection | |
| CN205807697U (en) | A kind of solar air-conditioner system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |