A peak load shifting control method of refrigeration storage and electric refrigerator
A control method, a technology of shifting peaks and filling valleys, which is applied in the direction of non-electric variable control, temperature control using electric methods, temperature control, etc., can solve the problems of inability to monitor the temperature in the refrigerator box, damage to the storage in the box, etc., and achieve The effect of less investment and simple technology
Active Publication Date: 2009-08-26
SHANDONG FANGDING SAFETY GLASS TECH CO LTD
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Problems solved by technology
However, this invention cannot monitor the temperature inside the refrigerator at all times. When the time control device cuts off the power supply of the refrigerator (power peak hours), when the temperature inside the refrigerator rises to an unacceptable level due to other factors, Refrigeration equipment is still not working, and the contents of the box will be damaged
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[0014] figure 1 It is the heavy current part of the present invention, and KT1 is a peak time relay. KT2 is the time relay during the valley period. (KT1 and KT2 are commercially available TG316 microcomputer time-controlled switches, within 24 hours, more than 10 groups of switching times can be set) KA1 is an intermediate relay during peak hours. KA2 is the intermediate relay during the valley period. SA is the circuit switch and FU is the fuse. Close the switch SA, when the time reaches the time period set by KT1, its normally open contact is closed, and the KA1 coil is energized and closed; when the time reaches the set time period of KT2, the KA2 coil is energized and closed.
[0015] KT1 is set to act according to the local peak time period. KT2 is set to act according to the local valley time period.
[0016] figure 2 It is the first embodiment of the present invention (taking cold storage as an example for illustration). Applicable if the temperature sensor use...
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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
Technical field [0001] The invention relates to a method for controlling peak shifting and valley filling of cold storage and refrigerators. Background technique [0002] According to the country's power situation, the National Development and Reform Commission requires all localities to implement and improve peak and valley electricity prices in order to ease the tension in social electricity consumption and smooth the power load curve. For units that implement peak-shifting and valley-filling power consumption, it can also save a certain amount of electricity purchase costs. Under this technical background, various peak-shifting and valley-filling technologies have received more attention. [0003] In the field of refrigeration, some solutions have been found, such as using cold storage technologies such as ice storage, water storage, and eutectic salt storage to reasonably shift power resources to peaks and valleys, which alleviates the contradiction of electricity consum...
Claims
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IPC IPC(8): F25D29/00G05D23/19G05D23/24
Inventor 申传海
Owner SHANDONG FANGDING SAFETY GLASS TECH CO LTD