基于主成分分析法的空调系统传感器自动故障诊断.PDF

24 6 建 筑 科 学 Vol24, No6 2008 6 BUILDING SCIENCE Jun. 2008 [ ] 2008) 肖 赋, 王盛卫, 徐新华, 葛高明( 香港理工大学 屋宇设备工程学系, 香港) [ ] , , , , , , , [ ] ; ; ; ; [ ] TU8314 [ ] A Automatic Commissioning of AHU S nsors Using Principl Compon nt Analysis XIA O Fu, WANG Shengwei , X UX inhua, GE Gaoming ( Dep artment of B uilding Serv ice Engineering , The H ong Kong Polytechnic Univer ity , H ong Kong SAR , China) [Abstract] HVAC syst ms s ldom p rform as int nd d und r th original d sign conc pt. As a qualityori nt d proc ss, commissioning should b conduct d r gularly or continuously throughout th building lif cycl . Consid ring labor, tim and cost consum d by manual commissioning, automatic commissioning is mor comp t nt for lif cycl commissioning. This pap r inv stigat s x isting t chniqu s for impl m nting automatic commissioning. It is found that, although many fforts hav b n put into d v loping automatic commissioning t chniqu s, s nsor validation was always ov rlook d. Accurat s nsor m asur m nts ar pr r quisit to r liabl commissioning. This pap r pr s nts a diagnostic tool for automatic commissioning of s nsors in typical airhandling units ( AHU) . Th diagnostic tool impl m nts a robust s nsor fault d t ction and diagnosis ( FDD) strat gy bas d on th principal compon nt analysis ( PCA) m thod. Th diagnostic tool is int grat d in a r al building automation syst m ( BAS) for automatic commissioning of AHU s nsors in a simulat d building. Th application of automatic onlin commissioning of AHU s nsors is d monstrat d. [Keywords] automatic commissioning, s nsor, airhandling unit ( AHU) , fault d t ction and diagnosis ( FDD) , principl compon nt analysis ( PCA)