Variable-capacity compressor startup control method, device, variable-capacity compressor, and storage medium

Abstract

The invention provides a start control method and device for a variable-capacity compressor, the variable-capacity compressor, an air conditioning unit and a storage medium, and relates to the technical field of compressors. The method comprises the following steps: obtaining a running load need of an indoor unit, and determining the running capacity need of the variable-capacity compressor on thebasis of the running load need; and obtaining the running capacity information of the variable-capacity compressor, and selecting at least one compression cylinder of the variable-capacity compressorcapable of meeting the running capacity need to start running on the basis of a preset start rule and the running capacity information. The method, device, variable-capacity compressor, air conditioning unit and storage medium are capable of self-adaptively selecting the compression cylinder to start running on the basis of the running load need, much reasonably meeting the load need, saving electric power consumption, improving the running stability and reliability and improving the use comfort of a user, and being more energy-saving and environment-friendly.

Description

technical field [0001] The present invention relates to the technical field of compressors, in particular to a variable capacity compressor start-up control method and device, a variable capacity compressor, an air conditioner unit, and a storage medium. Background technique [0002] The variable capacity compressor can increase the compressor capacity when the load is high, and can reduce the compressor capacity under low load conditions. For example, for an air conditioner unit with variable-capacity cylinder compressors, under high load, the unit uses double-cylinder operation to meet the user's capacity requirements, and under low load, the unit uses single-cylinder operation to meet user comfort and energy saving. The start-up of the variable capacity compressor largely determines the stability and reliability of the unit. At present, when the variable capacity compressor is started, the small cylinder is usually used to start first, and after the operation is stable, ...

AI Technical Summary

Problems solved by technology

At present, when the variable capacity compressor is started, the small cylinder is usually used to start first, and after the operation is stable, the cylinder switching action is performed, and then converted to dual-cylinder operation. Under high load, it is easy to switch cylinders immediately after starting, and this process takes a long time. Moreover, the operation of cutting cylinders is relatively complicated, which affects the comfort and stability of the system; and, since the large cylinders cannot operate independently, when the independent operation of the large cylinders can meet the load requirements, the unit uses dual cylinders to operate, which increases the power consumption

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