CN101514864B - A peak load shifting control method of refrigeration storage and electric refrigerator - Google Patents
A peak load shifting control method of refrigeration storage and electric refrigerator Download PDFInfo
- Publication number
- CN101514864B CN101514864B CN2009101190799A CN200910119079A CN101514864B CN 101514864 B CN101514864 B CN 101514864B CN 2009101190799 A CN2009101190799 A CN 2009101190799A CN 200910119079 A CN200910119079 A CN 200910119079A CN 101514864 B CN101514864 B CN 101514864B
- Authority
- CN
- China
- Prior art keywords
- temperature
- control system
- temperature control
- freezer
- peak
- 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
Images
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
A peak load shifting control method of refrigeration storage and electric refrigerator is disclosed. The invention can control the refrigeration storage or electric refrigerator to directly accumulate cold by the stored goods, thus has the characteristics of simple technology, low cost, and can omit special cold accumulation medium. The method comprises: when the refrigeration storage or electric refrigerator runs to the peak or load time of electricity consumption, changing the resistance value of a temperature feedback circuit of the temperature control system so as to change the recognization temperature of the temperature control system into a false temperature, and controlling the operation of the refrigerating unit according to the false temperature; reducing the operation time of the refrigerating unit in the peak time period and increasing operation time of the refrigerating unit in the load time period. The load time period is used for storing the cold, and the peak time period s used for utilizing the cold. Accordingly, the peak load shifting of refrigeration storage and electric refrigerator can be achieved by periodically changing the temperature control system recognization temperature.
Description
Affiliated technical field
The present invention relates to the peak load shifting control method of a kind of freezer, refrigerator.
Background technology
According to the power condition of country, National Development and Reform Committee requires various places to carry out and improve time-of-use tariffs, in the hope of alleviating the nervous situation of social electricity consumption, level and smooth electric load curve.For the unit that implements the peak load shifting electricity consumption, also can save certain electricity charge usefulness of purchasing, under this technical background, the attention that the technology of various peak load shiftings obtains more.
At refrigerating field, found some solutions, as adopting cold-storage technology such as ice cold-storage, water cold-storage, eutectic salt cold-storage, alleviated electricity consumption contradiction to a certain extent with the reasonable peak load shifting of electric power resource, reduced the pressure of electrical network.
Above-mentioned solution, though can realize the peak load shifting of electric power resource, but still have many problems.With the ice cold-storage is the energy accumulating technique inefficiency of representative, and system's bulky complex, needs special-purpose cool storage medium, and initial cost is bigger, has also increased management difficulty, has limited its large-scale popularization.
Chinese invention patent ublic specification of application CN1595031 discloses a kind of timed unit and method of application thereof of refrigerator.This invention utilizes timed unit, through cut off the electricity supply in the electricity consumption peak period, the mode of paddy period energized controls the operation of refrigerator (cooperating corresponding cold-storage device), realized the peak load shifting of electricity consumption to a certain extent.But; This invention can not be kept watch on by the temperature inside the box to refrigerator constantly; When timed unit cuts off refrigerator power (electricity consumption peak period); Because when other factors caused the temperature inside the box to be elevated to unacceptable degree, refrigeration plant still can not turn round, storing thing in the case will be damaged.
Summary of the invention
The technical matters that the present invention will solve provides the peak load shifting control method of a kind of freezer, refrigerator (comprising refrigerator-freezer etc.); The control purpose that it can not only reach peak load shifting, need not special-purpose cool storage medium, can keep watch on constantly and store cargo temperature and make it be controlled at the characteristics in the tolerance interval simple, the small investment of also possessing skills.
Concrete grammar is following:
Installing additional goes between forms through suitably encapsulating by thermistor in the Temperature Feedback loop of present most temperature of ice house control system; Be exactly that (refrigerator uses the less of this type of temperature control system to so-called temperature-sensitive head; This method only is applicable to the freezer and the refrigerator of this type of temperature control system control, below is example explanation this method with the freezer).This temperature-sensitive head is positioned over the corresponding site of freezer, and with the variation of temperature of ice house, the resistance of thermistor will change.The variation of this resistance passes to the temperature control system (hereinafter to be referred as temperature control system) of freezer; Temperature control system converts the variation of this resistance to corresponding electric signal (voltage, electric current or pulse etc.); And drive corresponding circuit working according to the variation of this electric signal, with the starting of control refrigeration unit with stop.Because the temperature of the temperature control system of freezer identification freezer is (resistance of thermistor changes with variation of temperature) of realizing by the resistance that detects thermistor (temperature-sensitive head).So series connection in the loop of temperature-sensitive head that can be artificial is parallel resistance (changing temperature-sensitive head resistance in circuit value) perhaps, change the identification temperature of temperature control system.Although this temperature that is identified not is the true temperature of freezer, but false temperature, temperature control system still can be controlled the starting of refrigeration unit and stops according to this false temperature.In view of the above, can be artificial according to the electricity using at the peak time period, change temperature-sensitive head resistance in circuit value; To change the height of freezer temperature control system identification temperature; Thereby control the refrigeration unit length of working time (the peak period is short, segment length during paddy), reach the purpose of peak load shifting.The paddy period is the cold-storage stage, the peak, at ordinary times the section for utilizing the cold storage capacity stage.
The present invention also possesses skills, and simply (common electrician can implement; Can accomplish the repacking of the temperature control system of a freezer about two hours), (the repacking cost of every freezer temperature control system is about 100 yuan for small investment; Disregard labour cost), need not special-purpose cool storage medium (directly use the goods cold-storage in the freezer, the energy accumulating technique of ice cold-storage just needs with the cool storage medium of ice as special use), can keep watch on constantly and store cargo temperature and make it be controlled at the characteristics in the tolerance interval.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is explained further details.
Fig. 1 is the strong power part of the embodiment of the invention.
Fig. 2 is the weak current part of the embodiment of the invention 1.
Fig. 3 is the weak current part of the embodiment of the invention 2.
Embodiment
Fig. 1 is a strong power part of the present invention, and KT1 is the peak period time relay.KT2 is the paddy period time relay.(KT1 and KT2 are commercially available TG316 type micro computer time switch, within 24 hours, can set 10 groups of above switching times) KA1 is a peak period auxiliary reclay.KA2 is a paddy period auxiliary reclay.SA is contactor for this reason, and FU is a fuse.The SA that closes a switch, when the time reached the time period that KT1 sets, its normally opened contact was closed, and the KA1 coil gets electric adhesive; When the time reached the setting-up time section of KT2, the KA2 coil got electric adhesive.
KT1 is set at action according to local peak time section.KT2 is set at action according to the local paddy time period.
Fig. 2 is first embodiment of the present invention (is that example describes with the freezer).If the temperature-sensitive head that the Temperature Feedback loop of freezer temperature control system design is used is during as negative tempperature coefficient thermistor (NTC), the circuit of suitable Fig. 2 then:
X1, X2 are the connection terminal in the Temperature Feedback loop of freezer temperature control system, and Rt is the original thermistor (temperature-sensitive head) that is used for Temperature Feedback of temperature control system; KA1, KA2 are the contact of Fig. 1 auxiliary reclay; The adjustable resistance that RP1, RP2 are (concrete resistance can specifically be selected according to the resistance of the original thermistor of temperature control system in actual use, because the Temperature Feedback loop current of temperature control system is very little, so not high to the power requirement of resistance).When the peak period arrives, reached the setting-up time of the peak period time relay, the KT1 action; Its normally opened contact adhesive, the coil of KA1 gets electric adhesive, and its normally closed contact breaks off; RP1 just seals in the loop of Rt, and the Temperature Feedback resistance in circuit of temperature control system increases.Because it is to increase that the thermistor of negative temperature coefficient reduces resistance with temperature; So; Period increases the Temperature Feedback resistance in circuit at the peak, makes that the identification temperature of temperature control system is lower than the actual temperature of freezer, and can control the operation of refrigeration unit according to this and false temperature.Because actual library temperature is understood and could be started than the higher refrigeration unit of storehouse temperature that set originally, stop as the same, so shortened the working time of refrigeration unit.When the paddy period arrives, reached the setting-up time of the paddy period time relay, KT2 action, its normally opened contact adhesive, the coil of KA2 gets electric adhesive, and its normally opened contact is closed, and RP2 is parallelly connected with Rt just, and the Temperature Feedback resistance in circuit of temperature control system reduces.Because it is to reduce that the thermistor of negative temperature coefficient improves resistance with temperature; So; Reduce the Temperature Feedback resistance in circuit in the paddy period, make that the identification temperature of temperature control system is higher than the actual temperature of freezer, and can control the operation of refrigeration unit according to this and false temperature.Because actual library temperature can be hanged down some refrigeration unit and just can stop than the temperature that stops that setting originally, start as the same, so increased the working time of refrigeration unit.Reached the purpose of peak load shifting.
Fig. 3 be second embodiment of the present invention (Fig. 3 circuit is on the basis of Fig. 2 circuit, change to form slightly, below, be that example describes with the freezer).If the temperature-sensitive head that the temperature control system of freezer design is used is as posistor (PTC) then the circuit of suitable Fig. 3:
X1, X2 are the connection terminal in the Temperature Feedback loop of freezer temperature control system, and Rt is the original thermistor (temperature-sensitive head) that is used for Temperature Feedback of temperature control system; KA1, KA2 are the contact of Fig. 1 auxiliary reclay; The adjustable resistance that RP1, RP2 are (concrete resistance can specifically be selected according to the resistance of the original thermistor of temperature control system in actual use, because the Temperature Feedback loop current of temperature control system is very little, so not high to the power requirement of resistance).When the peak period arrives, reached the setting-up time of the peak period time relay, KT1 action, its normally opened contact adhesive, the coil of KA1 gets electric adhesive, and its normally opened contact is closed, and RP2 is parallelly connected with Rt just, and the Temperature Feedback resistance in circuit of temperature control system reduces.Because it is to reduce that the thermistor of positive temperature coefficient (PTC) reduces resistance with temperature; So; Period reduces the Temperature Feedback resistance in circuit at the peak, makes that the identification temperature of temperature control system is lower than the actual temperature of freezer, and can control the operation of refrigeration unit according to this and false temperature.Because actual library temperature is understood and could be started than the higher refrigeration unit of the cranking temperature that set originally, stop as the same, so shortened the working time of refrigeration unit.When the paddy period arrives, reached the setting-up time of the paddy period time relay, the KT2 action; Its normally opened contact adhesive, the coil of KA2 gets electric adhesive, and its normally closed contact breaks off; RP1 just seals in the loop of Rt, and the Temperature Feedback resistance in circuit of temperature control system increases.Because it is to increase that the thermistor of positive temperature coefficient (PTC) improves resistance with temperature; So; Increase the Temperature Feedback resistance in circuit in the paddy period, make that the identification temperature of temperature control system is higher than the actual temperature of freezer, and can control the operation of refrigeration unit according to this and false temperature.Because actual library temperature can be hanged down some refrigeration unit and just can stop than the temperature that stops that setting originally, start as the same, so increased the working time of refrigeration unit.Reach the purpose of peak load shifting.
In the flat time period of electricity consumption, KT1, KT2 can not move, and the temperature control system of freezer can be according to the temperature control refrigeration unit operation of normal setting.(in order to reach more satisfactory effect, the paddy time relay can also be set at action with the half an hour before the peak time section.Temperature control system can be controlled refrigeration unit the storehouse temperature is further reduced, and accumulates certain cold for being about to get into the peak time section.Though this half an hour is in the flat time period, after all than peak time section operation economy some).
In addition, in order to reach more satisfactory effect, can also be at the clear position in storing the fewer freezer of goods, the ice of placement some or water are as cool storage medium, and its cold-storage effect is better.
More than be example with the freezer, this method is described, the control method of refrigerator (ice box etc.) can be implemented with reference to foregoing, is not giving unnecessary details here.
The present invention also can be used for freezer, refrigerator (ice box etc.) design for temperature control system.
The present invention is not limited to above-mentioned embodiment, no matter how its circuit form changes, so long as in electricity consumption different time section, utilize the method that changes the Temperature Feedback loop resistance value, reaches the peak load shifting purpose, all should think within protection domain of the present invention.
Claims (3)
1. the peak load shifting control method of a freezer, refrigerator; The freezer or the refrigerator of this method control; Its temperature control system must be used the temperature-sensing element of thermistor as the Temperature Feedback loop, it is characterized in that: the peak time section and the paddy that move to electricity consumption when freezer or refrigerator change the Temperature Feedback resistance in circuit value of its temperature control system during the time period; Identification temperature to change temperature control system is false temperature, and can control the operation of refrigeration unit according to this false temperature; When electricity consumption peak time section, the identification temperature that reduces temperature control system is false temperature, and refrigeration unit is moved less, and during the time period, the identification temperature that improves temperature control system is false temperature, and refrigeration unit is moved more in electricity consumption paddy.
2. control method according to claim 1; It is characterized in that: the Temperature Feedback loop design use negative tempperature coefficient thermistor of freezer or refrigerator temperature control system; When it moves to electricity consumption peak time section, in the Temperature Feedback loop, increase resistance to reduce the identification temperature of temperature control system; When it moves to electricity consumption paddy during the time period, in the Temperature Feedback loop, reduce resistance to improve the identification temperature of temperature control system.
3. control method according to claim 1; It is characterized in that: the Temperature Feedback loop design use posistor of freezer or refrigerator temperature control system; When it moves to electricity consumption peak time section, in the Temperature Feedback loop, reduce resistance to reduce the identification temperature of temperature control system; When it moves to electricity consumption paddy during the time period, in the Temperature Feedback loop, increase resistance to improve the identification temperature of temperature control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101190799A CN101514864B (en) | 2009-03-23 | 2009-03-23 | A peak load shifting control method of refrigeration storage and electric refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101190799A CN101514864B (en) | 2009-03-23 | 2009-03-23 | A peak load shifting control method of refrigeration storage and electric refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101514864A CN101514864A (en) | 2009-08-26 |
| CN101514864B true CN101514864B (en) | 2012-05-23 |
Family
ID=41039412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101190799A Active CN101514864B (en) | 2009-03-23 | 2009-03-23 | A peak load shifting control method of refrigeration storage and electric refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101514864B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052818A (en) * | 2009-10-30 | 2011-05-11 | 泰州乐金电子冷机有限公司 | Method and device for setting frequency-variable refrigerator |
| CN102798267B (en) * | 2012-09-04 | 2015-04-01 | 江苏省精创电气股份有限公司 | Method for preventing false alarm caused by temperature rising resulting from defrosting |
| CN103398538B (en) * | 2013-07-12 | 2016-04-13 | 韩旭 | A kind of energy conservation control method for refrigerator |
| CN112254428B (en) * | 2019-07-22 | 2021-12-17 | 合肥华凌股份有限公司 | Food material fresh-keeping control method and device, refrigeration equipment and storage medium |
-
2009
- 2009-03-23 CN CN2009101190799A patent/CN101514864B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101514864A (en) | 2009-08-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203799201U (en) | Power supply control device | |
| CN101908439B (en) | Self-adaptive electromagnetic relay zero-crossing on and off control method | |
| CN101514864B (en) | A peak load shifting control method of refrigeration storage and electric refrigerator | |
| CN102522928A (en) | Motor starter, starting method of motor and compressor | |
| CN104110800A (en) | Air conditioner, and on-off control method and on-off control system for resistive load | |
| CN104296493A (en) | Wide climatic zone energy-saving refrigerator | |
| CN201344695Y (en) | Refrigerator with refrigerating chamber temperature compensating device | |
| Cheng et al. | Primary frequency response in the Great Britain power system from dynamically controlled refrigerators | |
| CN103644705A (en) | Frequency converting control system of refrigerator, refrigerator and frequency converting control method of refrigerator | |
| CN109210609A (en) | Photovoltaic heat-storage heating system and its method | |
| CN102075124A (en) | Low power consumption starter of compressor motor of refrigerator | |
| CN201302349Y (en) | Temperature control system for freezing chamber of refrigerator | |
| CN101179245B (en) | Starter of AC motor | |
| CN102104178B (en) | Intelligent control device and method for cooling system | |
| CN100502190C (en) | Method and circuit of battery under-voltage protection | |
| CN103575054B (en) | Intelligent frequency conversion refrigerator | |
| CN202340199U (en) | Motor starter and compressor | |
| CN102611363A (en) | Micro-power consumption starter of refrigeration compressor motor | |
| CN202361722U (en) | Control device of refrigeration system and refrigeration apparatus having the same | |
| CN203984278U (en) | Commercial refrigeration compressor electric motor mutual-inductance contactless electric current starter | |
| CN105337533A (en) | Method for starting freezer compressor without power consumption | |
| CN106655517B (en) | Intelligent power control system and its electrical control method | |
| CN101119087A (en) | Non-power consumption electronic starter | |
| CN201980576U (en) | Semi-conductive thermostat | |
| CN206670185U (en) | A kind of temperature control circuit for Internet of Things semiconductor refrigeration box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190920 Address after: 276805 Huifeng Road, Taolu Industrial Park, Donggang District, Rizhao City, Shandong Province Patentee after: Fangding Technology Co., Ltd. Address before: 276815 Shandong Province, Rizhao City West Lake Town, Donggang District village xiangshuihe Patentee before: Shen Chuan Hai |
|
| TR01 | Transfer of patent right |