A Modular Control Method

Abstract

The invention discloses a modular control method. The system includes at least two air-conditioning units, water pumps and several communication lines. The air-conditioning unit includes a compressor, a water-side heat exchanger, a second heat exchanger, a throttling mechanism, and a controller. 1. The water supply temperature sensor and the return water temperature sensor installed at the water supply and return port of the water side heat exchanger. Adjustment control benchmark, calculate and adjust the situation according to the judgment of the ability to adjust; the main engine judges the adjustable action according to the temperature of the supply and return water, if the current needs of load shedding, standby, refrigeration and antifreeze and the number of currently running units is greater than 1, calculate the operating units in the current system The number NP of unprotected and load-shedding units in . The invention realizes the group control of the unit group through simple hardware and simple communication between the units, realizes the stable operation of the supply and return water temperature, the stable operation of the unit, and realizes the balanced operation and energy-saving operation of the unit.

Description

technical field [0001] The invention relates to the technical field of air source heat pumps, in particular to a modular control method. Background technique [0002] In the current domestic heat pump water heater market, most heat pump water heater control methods are single-unit control, and only a small number of units are modular control, but the control scheme of this small part of modular heat pump water heaters is also Referring to the central air-conditioning control method, it is not suitable for the use of heat pump water heaters, and the modularization effect and purpose cannot be achieved. [0003] In the existing technology, when multiple air conditioners are installed in a water system, group control cannot be realized, the operating range is small, and the ability to adjust the heating capacity is limited. Contents of the invention [0004] The purpose of the invention is to provide a modular control method. Through simple hardware and simple communication ...

AI Technical Summary

Problems solved by technology

[0002] In the current domestic heat pump water heater market, most heat pump water heater control methods are single-unit control, and only a small number of units are modular control, but the control scheme of this small part of modular heat pump water heaters is also Referring to the central air-conditioning control method, it is not suitable for the use of heat pump water heaters, and the modularization effect and purpose cannot be achieved

[0003] In the existing technology, when multiple air conditioners are installed in one water system, group control cannot be realized, the operating range is small, and the ability to adjust the heating capacity is limited

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