Operation control method of heat pump unit, heat pump unit and storage medium

The invention relates to a heat pump unit operation control method which comprises the following steps that the environment temperature, the water flow value, the water inlet temperature, the water outlet temperature and the capacity compensation coefficient of a heat pump unit are obtained, and the capacity compensation coefficient is used for correcting errors generated when the operation capacity of the heat pump unit changes along with the environment temperature; based on the water flow value, the water inlet temperature, the water outlet temperature and the capacity compensation coefficient, operation parameters of the unit are obtained through calculation; obtaining a preset parameter threshold interval corresponding to the environment temperature, wherein the parameter threshold interval indicates a normal operation interval of the operation parameters under the standard condition; judging whether the operation parameters are in a parameter threshold interval or not; and when the operation parameters