High-precision temperature control method, storage medium and control device

Abstract

The invention relates to a high-precision temperature control method, a storage medium and a control device. The high-precision temperature control method comprises the steps that 1, a preset temperature T0 in a temperature adjusting space is determined, a return difference is set to be delta T, the upper limit of the temperature is set to be Tmax, the lower limit of the temperature is set to be Tmin, the real-time output frequency in the latest time period is calculated so that an output frequency average value F1 is obtained, and a compressor continuously operates under the output frequencyaverage value F1, 2, the real-time average temperature is compared with the temperature upper limit Tmax, if the real-time average temperature is larger than the temperature upper limit Tmax, the output frequency of the compressor is increased according to a set level so as to increase the refrigerating capacity, and if the real-time average temperature is smaller than the temperature lower limitTmin, the output frequency of the compressor is reduced according to the set level so as to reduce the refrigerating capacity. On the basis of continuous cooling and level adjustment modes, overall continuous cooling and cooling adjustment of the refrigeration space can be achieved, and the uniformity of the temperature in the refrigeration space is guaranteed.

Description

technical field [0001] The invention relates to the field of temperature control of a temperature adjustment space, in particular to a high-precision temperature control method, a storage medium and a control device. Background technique [0002] Refrigeration spaces such as cold storage and central air-conditioning need to be kept within the set temperature range. Take cold storage as an example. Cold storage is a special building that needs to be kept at a low temperature for a long time. During operation, it is necessary to control and maintain the temperature of the cold storage. In recent years, the use function of cold storage has changed, and the cold storage has changed from the original storage type to the logistics type. The goods stored in the storage type cold storage will not be turned over for a long time, so the storage temperature is relatively stable. The logistics-type cold storage emphasizes the turnover speed of the goods in the warehouse. In the link of...

AI Technical Summary

Problems solved by technology

However, in the field of cold storage, it is well known that the volume capacity of the cold storage is large, and the temperature fluctuation has inertia. The continuous adjustment frequency conversion technology used in the cold storage cannot effectively keep the storage temperature constant.

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