Control method of air conditioning system and air conditioner
An air-conditioning system and control method technology, applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc., can solve the problems of optimal host, inoperable energy efficiency ratio, etc., and achieve the effect of solving the energy efficiency of units
Inactive Publication Date: 2020-04-03
GREE ELECTRIC APPLIANCES INC
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[0003] In order to solve the above-mentioned technical problem in the prior art that the main engine with the best energy efficiency ratio cannot be operated under the corresponding load, the present invention proposes a control method of an air-conditioning system and an air-conditioning system.
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[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0021] The principle and structure of the present invention will be described in detail below in conjunction with the drawings and embodiments.
[0022] Such as figure 1 As shown, the present invention proposes a control method of an air-conditioning system, including the steps of: listing the mathematical combination elements of all parallel hosts in the air-conditioning system; obtaining the current total user demand in each control cycle, and calculating according to the total user demand Get the load of the air conditioning system, and generate the performance...
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The invention discloses a control method of an air conditioning system and an air conditioner. The control method comprises the following steps that the current total demand of a user in all control periods is obtained, a load of the air conditioning system is calculated, and performance curves of corresponding relations of loads and energy efficiency of all mathematical combination elements in current operation are generated; an energy efficiency load graph with all the performance curves is generated, and the energy efficiency load graph is divided into a plurality of load areas according tothe points where the performance curves intersect with one another; and main machines corresponding to the mathematical combination elements corresponding to the performance curve with the highest energy efficiency in the corresponding load area are selected for operation according to the loads. According to the control method, an optimal critical point can be obtained for loading and deloading of a unit, so that the unit always operates in the high-efficiency area, the air conditioning system is efficient and energy-saving, meanwhile, the air conditioning system can operate accurately in real time on the basis of the optimal load, so that the problems that energy saving failure, control strategy improperness and the like of the unit are caused due to the fact that the unit energy efficiency and refrigeration capacity are reduced by long-time operation of a water chilling unit are solved.
Description
technical field [0001] The invention relates to the field of air conditioning, in particular to a control method of an air conditioning system and an air conditioner. Background technique [0002] With the operation of chillers in the air-conditioning system year by year, due to the fact that users seldom pay attention to the maintenance of chillers and improper use, the full-load rated cooling capacity of chillers will decrease, and the energy consumption required to reach a specific chilled water supply temperature will be greater. This is different from the energy efficiency index required by the original air conditioning system design plan, and the host with the best energy efficiency ratio cannot be operated under the corresponding load, resulting in a decrease in operating efficiency. Contents of the invention [0003] In order to solve the technical problem in the prior art that the main engine with the best energy efficiency ratio cannot be operated under the corre...
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IPC IPC(8): F24F11/30F24F11/64F24F11/86F24F11/88
CPCF24F11/30F24F11/64F24F11/86F24F11/88
Inventor 李宏波何玉雪韩广宇
Owner GREE ELECTRIC APPLIANCES INC