Method for determining compressor under-pressure starting resistance moment through actual measurement and program product

The invention belongs to a method for determining the under-pressure starting resistance torque of a compressor, and aims to solve the technical problems that an existing under-pressure starting resistance torque curve is often inaccurate when the condition that a motor-driven compressor unit can be started under pressure is determined at present, and a calculation result has large deviation when an existing determination method lacks related data of a system. The method comprises the following steps: acquiring data in the starting process of the compressor and inherent parameters of the compressor, drawing a starting resistance torque curve, eliminating interference factors, and judging whether a pure change curve is consistent with the trend of a starting torque characteristic curve of the compressor or not. And comparing the compressor power with the power corresponding to the torque at the same rotating speed on the pure change curve, judging whether the pure change curve is consistent with the trend of t