Control method for heat pump unit and heat pump system

Abstract

The invention belongs to the field of air-conditioning equipment, and particularly relates to a control method for a heat pump unit and a heat pump system. The control method for the heat pump unit and the heat pump system aim to solve the problems that an existing control method for the heat pump unit cannot start an auxiliary heating device in time, and thus the heating effect of the heat pump unit is poor and the energy efficiency ratio is low. In order to achieve the purposes, the control method for the heat pump unit is provided. According to the technical scheme, the working state of the heat pump unit can be monitored in real time by detecting operating parameters of the heat pump unit; then the energy efficiency ratio of the heat pump unit is calculated according to the detected operating parameters, the energy efficiency ratio is compared with a set threshold value, and accordingly whether the heat pump unit is in a high-efficiency operating state or not can be detected; and finally running programs of the heat pump unit are selectively adjusted according to the comparison result, and the heat pump unit can keep an efficient operating state and a good heating effect at any moment.

Description

technical field [0001] The invention belongs to the field of air conditioning equipment, and in particular relates to a control method of a heat pump unit and a heat pump system. Background technique [0002] With the continuous improvement of people's living standards, people have also put forward higher and higher requirements for the living environment. In order to maintain a comfortable ambient temperature, air conditioners have become an essential device in people's lives. Specifically, most of the existing air conditioners use heat pump units, which have the advantages of high working efficiency, energy saving and environmental protection. However, when the ambient temperature around the heat pump unit is too low, the working efficiency of the heat pump unit will decrease rapidly, thereby affecting the heating effect of the heat pump unit. In order to ensure a good heating effect, many heat pump units are equipped with auxiliary heating devices to ensure the heating ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing heat pump unit control method cannot turn on the auxiliary heating device in time, resulting in poor heating effect and low energy efficiency ratio of the heat pump unit within a period of time Problem, the present invention provides a control method for a heat pump unit. The control method includes the following steps: detecting the operating parameters of the heat pump unit; calculating the energy efficiency ratio of the heat pump unit according to the detected operating parameters; Comparing the energy efficiency ratio with the first threshold; selectively adjusting the operation program of the heat pump unit according to the comparison result

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