Assessment method and device for operation range of compressor

The invention discloses an assessment method and device for the operation range of a compressor. The assessment method includes the steps that firstly, the work condition load is set, and the rotation speed of the compressor is calculated; secondly, whether the compressor exceeds a preset normal operation range or not is judged according to the rotation speed, if yes, the work condition load is lowered, and if not, the work condition load is increased; thirdly, the first step and the second step are repeated until all work condition loads are traversed; and fourthly, the operation range of the compressor is assessed based on the traversing result. Through the assessment method and device for the operation range of the compressor, the operation range of the compressor can be fully assessed before the compressor is manufactured, prioritizing installation is conducted, the problem that the operation range can not be assessed before a model machine is manufactured in the prior art is solved, the risk of manufactu