Gas heat pump and electric variable refrigerant flow combination system and control method thereof

Abstract

The invention relates to a gas heat pump and electric variable refrigerant flow combination system and a control method thereof. An outdoor unit of the system comprises a gas variable refrigerant flowunit and an electric variable refrigerant flow unit which are controlled uniformly by a controller of the system. The gas variable refrigerant flow unit and the electric variable refrigerant flow unit communicate through a line. An indoor unit of the system comprises a plurality of indoor unit modules which communicate to any outdoor unit through lines. A clock is arranged on a master control substrate in the controller. The gas variable refrigerant flow unit uses a gas engine to drive a compressor to operate for refrigerating and heating circulation. The electric variable refrigerant flow unit drives the compressor by electric power to operate for refrigerating and heating circulation. By taking the gas variable refrigerant flow unit and the electric variable refrigerant flow unit as outdoor units simultaneously and controlling the gas variable refrigerant flow unit and the electric variable refrigerant flow unit independently, the system is driven to work in different time periods by using different energy sources by making full use of price difference of different energy sources, thereby creating advantageous conditions for improving the economical benefit.

Description

technical field [0001] The invention relates to an air-conditioning system and a control method, in particular to a multi-connection system and a control method, in particular to a gas heat pump and electric multi-connection combination system and a control method thereof. Background technique [0002] At present, most of the existing multi-connected air-conditioning systems are driven by electricity, and a few are driven by gas engines. Moreover, these two forms of multi-connection are basically used alone. At the same time, the peak-to-valley difference in electricity charges is implemented in most areas of my country, and the electricity cost at night is much lower than that during the day. Moreover, the gas cost is also subject to seasonal differences, the gas cost in summer is much lower than that in winter, and even some areas will have a summer natural gas price subsidy policy. Therefore, using a single driving mode cannot make full use of the price difference of di...

AI Technical Summary

Problems solved by technology

Therefore, the use of a single driving mode cannot make full use of the price difference of different energy sources, which is not conducive to the improvement of economic benefits, and needs to be improved

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