摘  要   介绍了导流叶片与变频调速的能量调节技术应用于离心式冷水机组中的原理和节能的机理。通过试验研究，分析了
该技术对部分负荷性能参数（IPLV/NPLV） 、不同负荷下的制冷系数以及压缩机的效率的影响，对如何在实际工程应用中有
效利用该技术提出了指导。
关键词  离心式冷水机组  导流叶片 变频调速 IPLV  节能
 
ENERGY SAVING CHARACTER ANALYSIS OF LOAD REGULATION
METHOD ON CENTRIFUGAL CHILLER
Wang Shenglong  Hu Hongming
(Johnson Controls Building Efficiency Technology (Wuxi) Co., Ltd, Wuxi 214028)
 
Abstract  Introduce the principles of using Variable Speed Drive (VSD) technology in centrifugal chiller and its
energy saving mechanism is analyzed as well. Its impact on Part-Load Value (IPLV/NPLV), Coefficient of Performance
(COP) and compressor efficiency under different load are analyzed after test. This provides a guide to adopt this
technology effectively in actual projects.
Keywords  Centrifugal chiller  Pre-rotation vane  Variable speed  IPLV  Energy saving