摘要
为了在空调系统仿真软件中实现用户自己定义的压缩机模型的应用和数据保密,本文开发了产品数据交互式变频压缩机模型。该模型通过将压缩机理论模型转化为可以直接拟合的形式,并利用产品数据进行拟合,其中线性流量方程通过对理论模型中的频率项进行线性化处理然后通过插值法推导得出,非线性功率方程采用残差极小值法进行线性求解得出;产品数据的保密通过将产品数据定义为私有函数并开发相应的接口函数,然后采用动态链接库对已定义的产品数据函数进行封装来实现。结果验证表明所开发的模型能准确地预测压缩机特性,最大偏差小于±5%,能够适用于系统仿真且能够做到产品数据保密。
In order to apply the user defined compressor model to the air-conditioner system simulation software and to protect the product data, a product-data interactive theoretical model of variable-speed compressor is developed. The model transforms the compressor theoret- ical model to the form that can be fitted directly by the product data. The linear mass flow rate equation is derived by linearizing the fre- quency item in the theoretical model using interpolation method, and the non-linear power equation is solved by least error method. For security concerns, the product data is defined as private functions with corresponding interface functions, and then packaged by the dy- namic link library. The results show that the developed model is capable of predicting compressor performance, and the maximum error is less than ± 5%. The developed compressor model can be applied to system simulation and the product data is well protected.
出处
《制冷学报》
CAS
CSCD
北大核心
2015年第3期73-78,共6页
Journal of Refrigeration
关键词
变频压缩机
线性化
模型
系统仿真
产品数据
variable-speed compressor
linearization
model
system simulation
product data
