Method for improving starting capacity of inverter compressor and reducing starting overshoot

The invention mainly relates to the technical field of variable-frequency compressor control, and aims to improve the starting capacity of a compressor and solve the problems that the overshoot is large in the starting process of the compressor, and the compressor easily collides with a cylinder. The invention provides a method for improving the starting capacity of an inverter compressor and reducing starting overshoot, which comprises the following steps: after the compressor is positioned and in an open-loop dragging stage, increasing the rotating speed of the compressor to a set rotating speed quickly, and when the rotating speed of the compressor reaches the set rotating speed, switching a speed closed loop; the starting capability of the compressor is improved. And after the rotating speed of the compressor reaches the set rotating speed, a small speed acceleration is provided for the compressor, a compressor rotor rises to the oil return rotating speed at the set small speed acceleration, the set speed