从节能的角度，阐述了变频技术在二次泵变水量系统中的应用，对变频水泵的能耗进行了分析。
From the viewpoint of energy saving, the application of variable frequency technology in the secondary pump system was expounded and the energy consumption of variable frequency pump was analyzed.
但是变水量空调系统具有多变量、强耦合、非线性、时变的特点，其运行和管理相对于定水量系统难度大些。
However since VWV system is multivariable, strongly coupled, nonlinear and time variant, its design performance and management are more difficult than constant flow chilled water volume system's.
但是变水量空调系统具有多变量、强耦合、非线性、时变的特点，其运行和管理相对于定水量系统难度大些。
However since VWV system is multivariable, strongly coupled, nonlinear and time variant, its design performance and management are more difficult than constant flow chilled water volume system's.
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