Energy-saving control method and system for deep lake water source heat pump system

Abstract

Provided are an energy-saving control method and system for a deep lake water source heat pump system. The method comprises the following steps that S1, a building cold and heat load prediction modelis built; S2, building refinement partitioning is conducted according to the building cold and heat load prediction model, and a cold and heat energy requirement dynamic curve of all subzones of a building is generated and is updated once every other 15-30 min; and S3, an indoor terminal, a freezing water pump, a valve unit, a deep lake water source side water pump and a heat pump host of the deeplake water source heat pump system respond to a command sent by a central host in time, the equipment response time, the starting and stopping characteristics and the system water capacity are considered according to the energy requirement dynamic curve, the deep lake water source heat pump system is divided into an equipment starting stage, a steady-state operation stage and an equipment halt stage, and staged control is conducted. The invention further discloses the energy-saving control system for the deep lake water source heat pump system. The energy-saving control method and system forthe deep lake water source heat pump system have the advantages of being high in efficiency, stable, free of pollution, small in energy consumption, remarkable in energy-saving effect and the like.

Description

Technical field [0001] The invention relates to the field of air-conditioning energy-saving control, in particular to an energy-saving control method and system for a deep lake water source heat pump system based on big data, three-stage and fine zoning control. Background technique [0002] Air-conditioning and heating equipment are the largest consumers of building energy consumption, accounting for 40% to 50% of total building energy consumption, and western developed countries account for 60% to 70%. It can be seen that the potential of building energy saving is huge. [0003] At present, the design of the central air-conditioning system in the Chinese building market is very rough, and there is serious energy waste. The specific manifestations are as follows: ① The blind use of new energy technologies and the lack of attention to the matching between the energy supply system and the energy-using system result in a relatively good operation effect of the entire air-conditioning...

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