CN110190665A - Greenhouse wind and solar hybrid generating system and control method - Google Patents
Greenhouse wind and solar hybrid generating system and control method Download PDFInfo
- Publication number
- CN110190665A CN110190665A CN201910572498.1A CN201910572498A CN110190665A CN 110190665 A CN110190665 A CN 110190665A CN 201910572498 A CN201910572498 A CN 201910572498A CN 110190665 A CN110190665 A CN 110190665A
- Authority
- CN
- China
- Prior art keywords
- wind
- greenhouse
- equipment
- battery
- electrical equipment
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000005611 electricity Effects 0.000 claims abstract description 33
- 238000010248 power generation Methods 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000005286 illumination Methods 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
- H02S10/12—Hybrid wind-PV energy systems
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of greenhouse wind and solar hybrid generating system and control method, which includes PLC controller, the generating equipment being connected respectively with PLC controller, battery, sensing equipment and greenhouse electrical equipment；The generating equipment includes wind-driven generator and photovoltaic electrification component, passes through wind control device and photovoltaic controller control output respectively；The generating equipment and battery are in parallel, are greenhouse power supply for electrical equipment by inverter；The sensing equipment includes illuminance sensor and air velocity transducer；The greenhouse electrical equipment includes light irradiation apparatus, wet curtain pump motor, blower and sunshade net motor.The system further includes the host computer configured with configuration software, the convenient power generation intelligent control to extensive greenhouse, and provides a kind of system control method.The present invention will be loaded and is linked together with electricity generation system, and system can carry out the adjustment of generated energy at any time according to the power demand of load, meet the requirement of intelligent modernization.
Description
Technical field
The present invention relates to a kind of wind and solar hybrid generating system more particularly to a kind of greenhouse wind and solar hybrid generating system and controls
Method processed.
Background technique
The Utilizing question of new energy has become one of the Main way of mankind nowadays development, and wind light mutual complementing power generation is as a kind of
Generation of electricity by new energy mode, has been obtained and is more and more widely used, for example, wind and light complementary road lamp, wind light mutual complementing communication base station,
Wind light mutual complementing weather station etc..The greenhouse of China some areas has applied solar power generation, but there is also some
Problem, such as Yangtze River Delta Area will appear continuous day rainy weather and cause solar power generation insufficient, easily causes battery over-discharge, damages
Battery and electricity shortage, need power grid to power.Winter and spring it is such situation it is particularly evident.But under weather unfavorable condition
Often with strong wind, in response to this, traditional solar power system can be replaced with wind and solar hybrid generating system, is made
Greenhouse, which can be detached from power grid power supply, becomes self-centered free-standing hair electric system, this is in the inconvenient farmland of power supply
It is especially suitable.
Summary of the invention
Goal of the invention: in view of the above problems, the present invention proposes a kind of greenhouse wind and solar hybrid generating system and control method,
Can be realized wind light mutual complementing is greenhouse load supplying, and can automatically engage or cut off generating equipment according to electricity consumption situation,
Realize intelligent control.
Technical solution: the technical scheme adopted by the invention is that a kind of greenhouse wind and solar hybrid generating system, the system packet
Include PLC controller, the generating equipment being connected respectively with PLC controller, battery, sensing equipment and greenhouse electrical equipment；Institute
Stating generating equipment includes wind-driven generator and photovoltaic electrification component, is controlled respectively by wind control device and photovoltaic controller defeated
Out；The generating equipment and battery are in parallel, are greenhouse power supply for electrical equipment by inverter；The sensing equipment includes illumination
Spend sensor and air velocity transducer；The greenhouse electrical equipment includes light irradiation apparatus, wet curtain pump motor, blower and sunshade net
Motor.
Further, the illuminance sensor and air velocity transducer are controlled by Analog input mModule and the PLC
Device is connected.
Further, the wet curtain pump motor with for spraying water to increase the water pump of warm indoor humidity and be connected.It is described
Light irradiation apparatus is set to the indoor ceiling of temperature, and the sunshade net motor is connected with the sunshade net being set to outside greenhouse ceiling.
In another scheme, which further includes the host computer configured with configuration software, and the host computer and PLC are controlled
Device is connected, and reads and writes PLC controller by configuration software.
The present invention also provides a kind of greenhouse wind light mutual complementing power generation control methods, comprising the following steps:
(1) power demand whether there is or not electrical equipment is first determined whether, if so, system is passed according to illuminance sensor and wind speed
Sensor judges weather condition at that time, preferentially judges light conditions, photovoltaic power generation is used in the case where meeting illumination condition, sunshine condition is not
Wind-power electricity generation is used in the case where meeting power demand.
(2) judge whether generated energy meets electricity consumption on the basis of step (1), use photovoltaic if it is satisfied, directly selecting
Component or wind-driven generator are to the common power supply of equipment power supply, or both.If conditions are not met, then using wind, light, battery connection
It closes and powers to equipment.
(3) on the basis of step (1), if same day wind speed very little and without sunshine, judge whether accumulator electric-quantity is full
Sufficient electricity consumption, if satisfied, by storage battery power supply；If not satisfied, then system alarm；
(4) if greenhouse is in the case where no electrical equipment, system chooses whether to utilize wind according to the electricity of battery
Light power generation charges to battery.
The utility model has the advantages that the present invention will be loaded and is linked together with electricity generation system, system relative to existing wind light mutual complementing technology
The adjustment that can carry out generated energy at any time according to the power demand of load, meets intelligentized requirement.Mobility of the present invention is strong,
Other laying wires are not needed, meet laying convenience well.The present invention is directed to the modernization of agricultural, intelligent requirements,
Keep greenhouse power generation more flexible, more cleans.
Detailed description of the invention
Fig. 1 is structure chart of the invention；
Fig. 2 is the system block diagram of electricity generation system of the present invention；
Fig. 3 is the system wiring figure of electricity generation system of the present invention；
Fig. 4 is the flow chart of control method of the present invention.
Specific embodiment
Further description of the technical solution of the present invention with reference to the accompanying drawings and examples.
Greenhouse wind and solar hybrid generating system of the present invention, overall structure is as shown in Figure 1, greenhouse is externally provided with wind-force hair
Motor 1 and photovoltaic electrification component 2 are equipped with a series of electrical equipments for adjusting inside greenhouse temperature and humidity in greenhouse, including illumination is set
Standby 3, wet curtain water pump 6, blower 5 and sunshade net 4.The motor of wet curtain water pump 6 is connected with water pump, and wet curtain pump motor is by water pump
To eminence spray to wet curtain, for cooling down, the humidity in greenhouse also can be improved.Light irradiation apparatus 3 is set to the indoor ceiling of temperature,
Increasing illumination under certain damp condition can be improved temperature and humidity.Sunshade net motor and the sunshade being set to outside greenhouse ceiling
Net 4 is connected, and when the temperature is excessively high, pulling on sunshade net can be effectively reduced the temperature of ceiling；The wind being additionally installed on greenhouse wall
Greenhouse inner air flow also can be enhanced in machine 5, reduces temperature and humidity.The system block diagram of electricity generation system is as shown in Figure 2.The present invention uses
Wind light mutual complementing power generation is realized in PLC controller and configuration software control, and system is mainly sent out by PLC controller, wind-driven generator, photovoltaic
Electrical component, wind control device, photovoltaic controller, battery, inverter and greenhouse electrical equipment composition.Wind-driven generator is by wind energy
Electric energy is converted to, rectification is carried out via wind control device and DC converting, the standard DC voltage of obtaining charges a battery, or warp
It crosses inverter and gives greenhouse power supply for electrical equipment.Photovoltaic electrification component converts the solar into electric energy, carries out via photovoltaic controller
DC converting equally also obtains standard DC voltage and charges a battery, or gives greenhouse power supply for electrical equipment by inverter.By
In greenhouse electrical equipment mainly have light irradiation apparatus, carry out the wet curtain pump motor of greenhouse temperature and humidity adjustment, fan electromotor and
Sunshade net motor is AC load, so greenhouse electrical equipment is all connected with inverter output end.And greenhouse institute is useful
For the mean power of electric equipment about in 2kW, load is lower, is very suitable for using wind light mutual complementing power generation.The system further includes controlling with PLC
The connected sensing equipment of device processed, including illuminance sensor and air velocity transducer, acquire illumination and wind speed parameter passes through simulation
Amount input module is sent to PLC controller.
The specific system wiring figure of the present invention is as shown in Figure 3.This system siemens PLC series of PLC, I/O allocation table
It is as shown in the table:
I/O allocation table
| Input equipment | Address | Output equipment | Address |
| Wet curtain pump motor button SB1 | IO.0 | Photovoltaic power generation KA1 | Q0.0 |
| Blower button SB2 | IO.1 | Wind-powered electricity generation power generation KA2 | Q0.1 |
| Sunshade net motor button SB3 | IO.2 | Battery KA3 | Q0.2 |
| Light irradiation apparatus button SB4 | IO.3 | Wet curtain pump motor KA4 | Q0.3 |
| Sunshade net opens limit SQ1 | IO.4 | Blower KA5 | Q0.4 |
| Sunshade net closes limit SQ2 | IO.5 | Sunshade net motor KA6 | Q0.5 |
| Illuminance sensor | AIW0 | Light irradiation apparatus KA7 | Q0.6 |
| Air velocity transducer | AIW2 | Overcharge alarm lamp HL1 | Q0.7 |
| Over-discharge alarm lamp HL2 | Q1.0 | ||
| Malfunction indicator lamp HL3 | Q1.1 |
PLC control route wiring diagram corresponding with I/O allocation table is as shown in Figure 3.
In order to be monitored in real time to the electricity generation system, intelligent control is realized, it is also an option that setting one controls with PLC
The connected host computer of device processed, host computer are configured with ForceControl configuration software, and the read-write PLC controller of ForceControl configuration software obtains temperature
The electricity consumption situation of electrical equipment in room, and wind-driven generator, photovoltaic electrification component and battery are carried out according to electricity consumption situation
Generation Control.Configuration software can keep supervisor convenient by real time reaction the case where the electricity generation system on host computer display
Know system mode.For the extensive greenhouse power generation applications scene of greenhouse substantial amounts, host computer and ForceControl are had
The embodiment of software is more suitable.
The design of control system needs to consider following problems: in the case where fine day has wind state, photovoltaic and wind-force being taken to combine hair
Electricity；Under fine day windless condition, photovoltaic power generation is taken；In the case where there is wind state in rainy days, wind-power electricity generation is taken；In rainy days and
Under windless condition, using storage battery power supply；When the electricity of battery reaches the upper limit, cutting goes forward side by side to the charge circuit of battery
Row overcharges alarm；When the electricity of battery is close to lower limit, cuts off the discharge loop of battery and carry out over-discharge alarm.Based on
It is as shown in Figure 3 to devise a kind of control flow for upper consideration.The control method of this this wind and solar hybrid generating system includes following step
It is rapid:
(1) power demand whether there is or not electrical equipment is first determined whether, if so, system is passed according to illuminance sensor and wind speed
Sensor judges weather condition at that time, preferentially judges light conditions, photovoltaic power generation is used in the case where meeting illumination condition, sunshine condition is not
Wind-power electricity generation is used in the case where meeting power demand.
(2) judge whether generated energy meets electricity consumption on the basis of step (1), use photovoltaic if it is satisfied, directly selecting
Component or wind-driven generator power to equipment；Either powered jointly by the two.If conditions are not met, then using wind, light, electric power storage
Pond, which is combined, powers to equipment.
(3) on the basis of step (1), if same day wind speed very little, without sunshine, that judges whether accumulator electric-quantity meets
Electricity consumption, if satisfied, by storage battery power supply；If not satisfied, then system alarm, urgent to put into other generators such as diesel engine.
(4) if greenhouse is in the case where no electrical equipment, system chooses whether to utilize wind according to the electricity of battery
Light power generation charges to battery, to guarantee that the alarm in step (3) does not occur as far as possible.
PLC and Forcecontrol comprehensive debugging the result shows that: photovoltaic power generation and wind-power electricity generation can be according to system power demands
Or the state of battery is automatically engaged or is cut off；The electricity of battery is able to maintain substantially between the upper limit and lower limit, is seldom gone out
It now overcharges and over-discharge problem；Equipment can guarantee its power supply volume during operation, accomplish self-sufficient, does not need power grid and in addition supplies
Electricity.This system it is on probation during, stability of the invention has had reached the stability requirement of traditional power supply mode.
Claims (6)
1. a kind of greenhouse wind and solar hybrid generating system, it is characterised in that: the system include PLC controller, respectively with PLC control
Device connected generating equipment, battery, sensing equipment and greenhouse electrical equipment；The generating equipment include wind-driven generator and
Photovoltaic electrification component passes through wind control device and photovoltaic controller control output respectively；The generating equipment and battery are in parallel,
It is greenhouse power supply for electrical equipment by inverter；The sensing equipment includes illuminance sensor and air velocity transducer；The temperature
Room electrical equipment includes light irradiation apparatus, wet curtain pump motor, blower and sunshade net motor.
2. greenhouse wind and solar hybrid generating system according to claim 1, it is characterised in that: the system further includes being configured with
The host computer of configuration software, the host computer are connected with PLC controller, read and write PLC controller by configuration software.
3. greenhouse wind and solar hybrid generating system according to claim 1, it is characterised in that: the illuminance sensor and
Air velocity transducer is connected by Analog input mModule with the PLC controller.
4. greenhouse wind and solar hybrid generating system according to claim 1, it is characterised in that: the wet curtain pump motor
It is connected with for spraying water with the water pump for increasing warm indoor humidity.
5. greenhouse wind and solar hybrid generating system according to claim 1, it is characterised in that: the light irradiation apparatus is set to temperature
Indoor ceiling, the sunshade net motor are connected with the sunshade net being set to outside greenhouse ceiling.
6. a kind of greenhouse wind light mutual complementing power generation control method, which comprises the following steps:
(1) power demand whether there is or not electrical equipment is first determined whether, if so, system is according to illuminance sensor and air velocity transducer
Judge weather condition at that time, preferentially judge light conditions, photovoltaic power generation is used in the case where meeting illumination condition, sunshine condition is unsatisfactory for
Wind-power electricity generation is used in the case where power demand；
(2) judge whether generated energy meets electricity consumption on the basis of step (1), use photovoltaic module if it is satisfied, directly selecting
Or wind-driven generator powers to equipment；It powers if conditions are not met, then being combined using wind, light, battery to equipment；
(3) on the basis of step (1), if same day wind speed very little and without sunshine, judge whether accumulator electric-quantity meets use
Electricity, if satisfied, by storage battery power supply；If not satisfied, then system alarm；
(4) if greenhouse is in the case where no electrical equipment, system chooses whether to utilize scene hair according to the electricity of battery
Electricity charges to battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910572498.1A CN110190665A (en) | 2019-06-27 | 2019-06-27 | Greenhouse wind and solar hybrid generating system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910572498.1A CN110190665A (en) | 2019-06-27 | 2019-06-27 | Greenhouse wind and solar hybrid generating system and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110190665A true CN110190665A (en) | 2019-08-30 |
Family
ID=67724077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910572498.1A Pending CN110190665A (en) | 2019-06-27 | 2019-06-27 | Greenhouse wind and solar hybrid generating system and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110190665A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781978A (en) * | 2020-07-22 | 2020-10-16 | 中国人民解放军32181部队 | Wind-solar complementary power generation-based intelligent temperature and humidity control system for ordnance warehouse and capacity calculation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202425407U (en) * | 2011-12-22 | 2012-09-12 | 上海电机学院 | Wind and light complement irrigation system |
| CN203586064U (en) * | 2013-12-10 | 2014-05-07 | 深圳市科瑞达新能源科技有限公司 | Wind-light complementation intelligent control LED lighting system |
| CN203617954U (en) * | 2013-11-13 | 2014-05-28 | 天津世冠自动化科技有限公司 | Novel wind and light storage combination power generation system |
| CN203896922U (en) * | 2014-06-12 | 2014-10-29 | 亿利资源集团有限公司 | Intelligent irrigation system |
| CN204270184U (en) * | 2014-12-03 | 2015-04-15 | 北华大学 | Wind-solar complementary type grain depot temperature and humidity control system |
| CN105613135A (en) * | 2016-02-26 | 2016-06-01 | 中国农业科学院农田灌溉研究所 | Greenhouse water, fertilizer, air and heat integrated intelligent irrigation system |
| CN108512044A (en) * | 2018-02-06 | 2018-09-07 | 国网江苏省电力有限公司宿迁供电分公司 | A kind of wind light mutual complementing power supply looped network cabinet dehumidification device |
-
2019
- 2019-06-27 CN CN201910572498.1A patent/CN110190665A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202425407U (en) * | 2011-12-22 | 2012-09-12 | 上海电机学院 | Wind and light complement irrigation system |
| CN203617954U (en) * | 2013-11-13 | 2014-05-28 | 天津世冠自动化科技有限公司 | Novel wind and light storage combination power generation system |
| CN203586064U (en) * | 2013-12-10 | 2014-05-07 | 深圳市科瑞达新能源科技有限公司 | Wind-light complementation intelligent control LED lighting system |
| CN203896922U (en) * | 2014-06-12 | 2014-10-29 | 亿利资源集团有限公司 | Intelligent irrigation system |
| CN204270184U (en) * | 2014-12-03 | 2015-04-15 | 北华大学 | Wind-solar complementary type grain depot temperature and humidity control system |
| CN105613135A (en) * | 2016-02-26 | 2016-06-01 | 中国农业科学院农田灌溉研究所 | Greenhouse water, fertilizer, air and heat integrated intelligent irrigation system |
| CN108512044A (en) * | 2018-02-06 | 2018-09-07 | 国网江苏省电力有限公司宿迁供电分公司 | A kind of wind light mutual complementing power supply looped network cabinet dehumidification device |
Non-Patent Citations (2)
| Title |
|---|
| 范哲超, 陆明: "基于国产PLC的光伏供电温室控制系统设计与实现", 江苏农业科学, vol. 45, no. 15, pages 223 * |
| 赵丽君: "基于PLC的风光互补发电控制系统设计", 承德石油高等专科学校学报, vol. 15, no. 4, pages 32 - 37 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111781978A (en) * | 2020-07-22 | 2020-10-16 | 中国人民解放军32181部队 | Wind-solar complementary power generation-based intelligent temperature and humidity control system for ordnance warehouse and capacity calculation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102455030B (en) | Vehicle-mounted solar air conditioning system and automobile comprising same | |
| US20120295534A1 (en) | Method and system of ventilation for a healthy home configured for efficient energy usage and conservation of energy resources | |
| CN203586455U (en) | Photovoltaic air conditioning system | |
| Misak et al. | Off-grid power systems | |
| CN207803104U (en) | Pig house intelligent cooling system | |
| CN102159003B (en) | Solar energy and wind energy integrated highly-intelligent control method and system | |
| CN211456710U (en) | Multifunctional integrated distributed power supply | |
| CN110190665A (en) | Greenhouse wind and solar hybrid generating system and control method | |
| CN203014421U (en) | Solar green operating room power supply system | |
| CN204928295U (en) | Portable ready -package charging station of modularization | |
| CN207555852U (en) | A kind of underground heat exchange formula full heat recovery fresh air processing system | |
| CN206115302U (en) | Battery type portable power source's network temperature management system | |
| CN204574366U (en) | Control system of air conditioner outdoor unit | |
| CN107612004A (en) | Adaptive wind power generation and energy storage system | |
| CN210867252U (en) | Wind-solar hybrid power generation system for greenhouse | |
| CN106765753A (en) | A kind of solar airconditioning and its method of supplying power to | |
| CN207300815U (en) | A kind of air monitoring device based on new energy | |
| CN107991915B (en) | Photovoltaic panel cleans machine people control system | |
| CN214498537U (en) | Assembled basic station | |
| CN105098955A (en) | Environmental-friendly wind and light supplementary power supply air conditioning unit | |
| CN214543643U (en) | Regional comprehensive energy system containing joint virtual energy storage | |
| CN105048505A (en) | Wind-light complementary micro-grid system used for intelligent cell | |
| CN201608670U (en) | Solar power supply system for greenhouse | |
| CN209882660U (en) | Zero-emission cooling system for greenhouse | |
| CN203964240U (en) | The variable-frequency multi-connection type air-conditioner of solar photovoltaic driving |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |