Control method, apparatus, and device for compressor, storage medium, and refrigeration system

A control method for a compressor, comprising:

• obtaining an electrical parameter, a return air parameter, and a first frequency of the compressor during operation of the compressor;
• determining a first fitting formula corresponding to the first frequency from a preset calculation model, wherein the preset calculation model comprises fitting formulas corresponding to a plurality of frequencies, and wherein each of the fitting formulas is obtained by fitting based on a historical electrical parameter, a historical return air parameter and a historical frequency of the compressor;
• obtaining an exhaust pressure by inputting the electrical parameter and the return air parameter into the first fitting formula for calculation;
• obtaining a temperature of a heat exchanger in a refrigeration system where the compressor is located, and obtaining a pressure of the heat exchanger based on the temperature of the heat exchanger;
• obtaining pipeline pressure loss;
• determining a greater one between a sum of the pressure of the heat exchanger and the pipeline pressure loss and the obtained exhaust pressure as an ultimate exhaust pressure;
• and
• controlling the compressor based on the exhaust pressure.