CN202050251U - Cold-hot co-production microgrid system - Google Patents
Cold-hot co-production microgrid system Download PDFInfo
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- CN202050251U CN202050251U CN2011201167738U CN201120116773U CN202050251U CN 202050251 U CN202050251 U CN 202050251U CN 2011201167738 U CN2011201167738 U CN 2011201167738U CN 201120116773 U CN201120116773 U CN 201120116773U CN 202050251 U CN202050251 U CN 202050251U
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- cold
- heat
- hot
- production
- microgrid system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/14—District level solutions, i.e. local energy networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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Abstract
The utility model discloses a cold-hot co-production microgrid system which relates to a microgrid system capable of cooling, heating and improving energy utilization and is applied in the field of distributed generation. At present, the inland has no cold-hot co-production microgrid system; photovoltaic products on the markets have problems of no energy management system, energy waste, etc. In the cold-hot co-production microgrid system, the microgrid system is provided with a function of energy management, is a controllable charge of the superior grid, can increase the generating efficiency of a solar cell plate and improve the working conditions of a heat pump and the cold-hot co-production and consists of a multi-way current transformer, a variable frequency heat bump and a combination of the solar cell plate and a heat exchanger. In the cold-hot co-production microgrid system, the surplus electric energy can be stored by generating cold water and hot water through the heat pump; therefore, the capacity of the required accumulator can be effectively reduced; the integral operation cost can be reduced fundamentally; thereby realizing the balance between power generation and power utilization, the balance between refrigeration and cold utilization and the balance between heating and hot utilization, and the solar utilization is increased.
Description
Affiliated technical field
A kind of cold-heat combined micro-grid system relates to little electrical network and heat pump techniques, particularly can generate electricity, freezes, heat, improve the solar panel generating efficiency, improve the heat pump operating mode, improve the micro-grid system of efficiency of energy utilization, be applied to the distributed power generation field.
Background technology
The system that little electrical network is made up of distributed power source, energy storage device, energy converter, relevant load and monitoring, protective device can provide electric energy and heat simultaneously, is one and can realizes oneself's control, protection and management.
The present domestic cold-heat combined micro-grid system that also do not have, photovoltaic product on the market exists following problem in actual applications: 1, grid type product in the photovoltaic product, the sun is being arranged and do not having under the situation of the sun output situation of change bigger, with respect to higher level's electrical network is a big load of variation, influence the stabilization of power grids, 2, photovoltaic product on the market does not all have energy management functionality, can't guarantee self to become a constant load of power distribution network, just simply issue formula electricity generation system is linked in the power distribution network, gives the economy and the node voltage of power supply, trend, short circuit current, the network power supply reliability is brought influence.3, solar heat pump product on the market is all at 220V or the design of 380V power supply, the operating power substantially constant, if use the solar photovoltaic power system, often can not change compressor frequency according to the situation of change of solar energy, just waste when solar energy is too much, just can't operate as normal when solar energy is not enough, still cause the waste of the energy.Therefore the utility model proposes a kind of cold-heat combined micro-grid system.
Summary of the invention
At above problem, the utility model provides a kind of cold-heat combined micro-grid system, and this micro-grid system has energy management functionality, is the controllable burden of higher level's electrical network, can improve the solar panel generating efficiency, improves heat pump operating mode and cold-heat combined.
The technical scheme that its technical problem that solves the utility model adopts is: the combination by multidirectional current transformer, variable ratio frequency changer heat pump and solar panel and heat exchanger has been formed cold-heat combined micro-grid system jointly.
Described multidirectional current transformer is made up of as critical piece parallel network reverse module (2), energy storage administration module (6) and three-phase four winding transformation (3) devices, and its internal structure is for to be electrically connected to parallel network reverse module (2), higher level's electrical network (4), little electrical network interior distribution net (5), energy storage administration module (6) successively on four windings of N1, N2, N3, N4 of three-phase four winding transformers (3).
Described variable ratio frequency changer heat pump is to be core by frequency-changeable compressor (10), the heat-exchange apparatus that refrigerant loop, warm water circulation circuit and cold water circulation circuit constitute.Its internal structure forms the refrigerant loop in turn frequency-changeable compressor (10), condenser (9), evaporator (11) being connected into ring-type, the warm water circulation circuit that warm water is circulated between condenser (9), hot storage tank (8), the cold water circulation circuit that cold water is circulated between evaporator (11), cold storage tank (12).
The combination of described solar panel and heat exchanger (1) is close to Solar panel backside by heat exchange catheter and is constituted, and can carry out heat exchange between the two.
The power supply of frequency-changeable compressor (10) is connected electrically on little electrical network interior distribution net (5), the cell panel output of the combination of solar panel and heat exchanger (1) is connected electrically in parallel network reverse module (2) input side, and the heat exchanger part in the combination of solar panel and heat exchanger (1) seals in the cold water circulation circuit as variable ratio frequency changer heat pump heat exchanger.
The utility model exchanges power requirement according to higher level's electrical network to the little electrical network electric energy of the corresponding levels, in conjunction with user's request power and solar power generation power and change the operating frequency of heat pump compressor, and then change heat pump power, guarantee that generating and electricity consumption balance each other, whole little electrical network becomes a controllable burden of higher level's electrical network.Because the controllability of system, in the low power consumption phase, by with the power delivery of higher level's electrical network in micro-grid system, be saved in the storage battery (7) or heat pump is used, chilled water and heat water and store in the water tank standby; In peak times of power consumption, under the situation of meeting consumers' demand with the part power delivery in higher level's electrical network, and rely on the cold water of storage and refrigeration that hot water satisfies the user and heat demand, reduce power requirement to higher level's electrical network, have energy management functionality.
When the solar panel temperature drift, the water of the Solar panel backside of flowing through heat exchanger has reduced the temperature of solar panel, improves generating efficiency.
Under the low excessively situation of ambient temperature, the coolant-temperature gage of the Solar panel backside of flowing through heat exchanger raises, and has improved the heat pump operating mode.
Characteristics of the present utility model are, heat exchanger has improved energy conversion efficiency and solar energy generating efficiency with combining of solar panel, utilization manages to energy to utilize energy management functionality, unnecessary electric energy is produced cold water and hot water storage by heat pump, can effectively reduce the capacity of needed storage battery, fundamentally reduced whole operating cost, realize generating simultaneously and used electric equilibrium, the refrigeration with weigh with cold-smoothing, heat and use heat balance, improve solar energy utilization ratio, can under higher level's administration of power networks, carry out " peak load shifting ", reduced the management problems of higher level's electrical network.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified:
Accompanying drawing is cold-heat combined micro-grid system schematic diagram, in the accompanying drawing,
(1) is the combination of solar panel and heat exchanger.Electricity can be produced with what the heat pump heat exchanger was installed in that solar panel forms later, the device of hot water can be added again;
(2) be the parallel network reverse module;
(3) be three-phase four winding transformers;
(4) be higher level's electrical network;
(5) be little electrical network interior distribution net;
(6) being the energy storage administration module, can be alternating current output with the dc inverter in the storage battery, and plays the effect of keeping the equipment output voltage under situation about disconnecting with higher level's electrical network; Also can be as required the alternating current synchronous rectification of outside input being become direct current stores in the storage battery;
(7) be storage battery;
(8) be hot storage tank;
(9) be condenser;
(10) be frequency-changeable compressor;
(11) be evaporator;
(12) be cold storage tank;
(13) be the indoor fan coil pipe.
Specific embodiments
The cold-heat combined micro-grid system that can generate electricity, freeze, heat, by multidirectional current transformer and variable ratio frequency changer heat pump, and the combination of solar panel and heat exchanger is formed jointly.Wherein multidirectional current transformer is parallel network reverse module (2) higher level's electrical network (4), little electrical network interior distribution net (5), energy storage administration module (6) to be electrically connected to respectively on each winding of three-phase four winding transformers (3) constitute.The variable ratio frequency changer heat pump, be with frequency-changeable compressor (10) as core, in turn frequency-changeable compressor (10), condenser (9), evaporator (11) are connected into the refrigerant loop that ring-type forms; The warm water circulation circuit that warm water is circulated between condenser (9), hot storage tank (8); The cold water circulation circuit that cold water circulates between evaporator (11), cold storage tank (12) is constituted jointly.The combination of solar panel and heat exchanger is that heat exchange catheter is close to Solar panel backside, can carry out heat exchange between the two.
Whole system has energy management functionality.To the little electrical network electric energy of corresponding levels exchange requirement, calculate electric energy power more than needed according to higher level's electrical network in conjunction with user's request and solar power generation situation.Under the situation of electric energy power greater than 0KW more than needed, again according to the daily cold of user with calculate with heat, the electric energy of will having more than needed stores in the storage battery according to a certain percentage, the remainder heat pump is used, and according to the big or small operating frequency that changes heat pump compressor of this part electric energy, and then change heat pump power, make that the heat pump operating power is consistent with the electric energy power of supplying with heat pump guarantees that generating and electricity consumption balance each other.Under the situation of electric energy power less than 0KW more than needed, EMS will be allocated electric energy and be replenished the electricity consumption breach from storage battery, and use cold water and hot water among the hot and cold water tank who is stored in heat pump to guarantee that using with cold-peace of user is hot.Send at higher level's electrical network under the situation of peak load shifting instruction, because the controllability of system can cooperate higher level's electrical network " peak load shifting ".In the low power consumption phase, by with the power delivery of higher level's electrical network in micro-grid system, be saved in the storage battery or heat pump is used, chilled water and heat water and store in the water tank standby; In peak times of power consumption, under the situation of meeting consumers' demand with the part power delivery in higher level's electrical network, and rely on the cold water of storage and refrigeration that hot water satisfies the user and heat demand, reduce power requirement to higher level's electrical network.Under the intelligent management of EMS, the balance of the balance of the balance of generating of realization system and electricity consumption, usefulness cold and refrigerating capacity, usefulness heat and heating capacity, whole little electrical network becomes a controllable burden of higher level's electrical network, and improves the utilance of solar power generation.
Claims (4)
1. cold-heat combined micro-grid system, it is characterized in that: the combination by multidirectional current transformer, variable ratio frequency changer heat pump and solar panel and heat exchanger is formed jointly.
2. according to right 1 described cold-heat combined micro-grid system, it is characterized in that: described its internal structure of multidirectional current transformer is for to be electrically connected to parallel network reverse module, higher level's electrical network, little electrical network interior distribution net, energy storage administration module successively on four windings of N1, N2, N3, N4 of three-phase four winding transformers.
3. according to right 1 described cold-heat combined micro-grid system, it is characterized in that: the variable ratio frequency changer heat pump be by frequency-changeable compressor as core, the heat-exchange apparatus that refrigerant loop, warm water circulation circuit and cold water circulation circuit constitute.
4. according to right 1 described cold-heat combined micro-grid system, it is characterized in that: the combination of solar panel and heat exchanger is close to Solar panel backside by heat exchange catheter and is constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201167738U CN202050251U (en) | 2011-04-13 | 2011-04-13 | Cold-hot co-production microgrid system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201167738U CN202050251U (en) | 2011-04-13 | 2011-04-13 | Cold-hot co-production microgrid system |
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| Publication Number | Publication Date |
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| CN202050251U true CN202050251U (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201167738U Expired - Fee Related CN202050251U (en) | 2011-04-13 | 2011-04-13 | Cold-hot co-production microgrid system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623991A (en) * | 2012-04-09 | 2012-08-01 | 深圳市理工新能源有限公司 | Microgrid energy management system and method |
| CN106642816A (en) * | 2017-01-06 | 2017-05-10 | 华北电力大学 | Heating and cooling combined system for solving renewable energy power generation energy waste problem |
| CN106786802A (en) * | 2017-02-15 | 2017-05-31 | 中国能源建设集团江苏省电力设计院有限公司 | A kind of photovoltaic plant based on CCHP is exerted oneself quick regulator control system |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
-
2011
- 2011-04-13 CN CN2011201167738U patent/CN202050251U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623991A (en) * | 2012-04-09 | 2012-08-01 | 深圳市理工新能源有限公司 | Microgrid energy management system and method |
| CN102623991B (en) * | 2012-04-09 | 2014-11-19 | 深圳太研能源科技有限公司 | Microgrid energy management system and method |
| CN106642816A (en) * | 2017-01-06 | 2017-05-10 | 华北电力大学 | Heating and cooling combined system for solving renewable energy power generation energy waste problem |
| CN106786802A (en) * | 2017-02-15 | 2017-05-31 | 中国能源建设集团江苏省电力设计院有限公司 | A kind of photovoltaic plant based on CCHP is exerted oneself quick regulator control system |
| CN106786802B (en) * | 2017-02-15 | 2019-10-15 | 中国能源建设集团江苏省电力设计院有限公司 | A kind of quick regulator control system of photovoltaic plant power output produced based on cold-hot-Electricity Federation |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20180413 |