变频空调器除霜控制技术的试验研究与优化  

Experimental research and optimization of defrosting control technology for variable frequency air conditioner

作　　者：田雅颂 徐耿彬 廖敏 TIAN Yasong;XU Gengbin;LIAO Min(Gree Electric Appliances,INC.of Zhuhai,Zhuhai 519070)

机构地区：[1]珠海格力电器股份有限公司,广东珠海519070

出　　处：《家电科技》2022年第5期76-79,98,共5页Journal of Appliance Science & Technology

基　　金：国家重点研发计划“空气源热泵多维度供暖特性研究”(项目编号:2019YFE0103000)。

摘　　要：为了降低空调除霜过程中的管路振动及噪声,并提高空调制热全周期的能力,试验研究除霜的控制技术。首先对室内风机、四通阀、压缩机、室外风机等空调执行器进行单一因素的试验分析,确定了各执行器对空调系统的影响,然后将各执行器联合控制形成优化方案,并与原方案进行比较。试验表明:优化后的除霜方案可降低四通阀换向时高低压差0.061 MPa,有效改善管路振动和噪声,并能提高制热周期能力134 W和能效比,对用户制热舒适性提升有帮助。研究结果对空调除霜的控制策略具有指导意义。In order to reduce the pipeline vibration and noise in the process of air conditioning defrosting and improve the capacity of air conditioning heating cycle,the control technology of defrosting is experimentally studied.Firstly,the single factor tests of each actuator of air conditioner such as indoor fan,four-way valve,compressor and outdoor fan are carried out,determined the impact of each actuator on the air conditioning system.Then,the actuators are jointly controlled to form an optimized program,which is compared with the original program.Experiments show that the optimized defrosting program can reduce the high and low pressure difference by 0.061 MPa and the pipeline vibration and noise are effectively reduced when the four-way valve is reversing.The optimized scheme can also improve the heating capacity 134 W and energy efficiency ratio,which is helpful to improve the heating comfort of users.The research results have guiding significance for the control strategy of defrosting.

关 键 词：变频空调 除霜 控制技术 优化 

分 类 号：TB6[一般工业技术—制冷工程]