02-BB-六西格玛案例之二.pptVIP

* * LG Electronics / Digital Appliance Company Contents DC Inv. Multi. PF Improvement 研发中心 2004.10. 20 1.Theme Registration 2.Define 3.Measure 4.Analyze 5.Improve 6.Control 6σ Project 登录/完了报告书 课 题 名 现水准 比较水准 目标 KPI 阶 段 定 义 测 定（Spec 明确化） 分 析（设计） 改 善（最适化） 管 理 活动期间 利用工具 课题选定背景 突破界限的Idea 类型 RD MFG TQ NWT 制作人 LGETA （ RD Center ）事业担当 （ 空调 ）部 RD Center Result 决 裁 科长 Leader 部长 MBB 登录 完了 改善金额 登录日期 导入依据 ( Big Y/TDR/月KPI追加/ 其它) 8.15~8.24 8.25~9.11 9.12~10.02 10.03~10.15 10.15~10.20 Logic tree Gage RR Capability analysis One-way ANOVA DOE Xbar-R DC Inverter Multi PF Improvement 0.91 0.92 0.93 0.936 2004-8-15 1/10 Fast Profitable RD Great Company Great People Background for factor selection ■ Power factor introduce Where , I1 :effective current value of basic input wave Irms : effective value of input current γ =I1 /Irms :distortion modulus of input current CosΦ :phasic factor of basic wave voltage and current rms I PF 1 = S P = V 1 cos Φ V 1 I I 1 cos Φ I rms = × = cos Φ γ C I A M D Define ■ Why we must improve the power factor 1、Improve the equipment’s running efficiency. 2、Prolong the equipment’s using life. 3、Decrease the influence to the voltage network. ■ Compare with competitive companies ■ Target 2/10 Fast Profitable RD Great Company Great People Circuit diagram Three factors were selected as a preliminary CTQ about phase control components. C I A M D Define Preliminary CTQ Logic tree Factors Related to Power factor Signal input circuit C09S Input circuit BD02S IC01S R01S IGBT R02S C05S R03S R04S R05S REACTOR C06S Feedback circuit 3/10 Fast Profitable RD Great Company Great People C I A M D 测量 Measure system GPM-8212 AC digital power factor measure： GPM-8212 AC digital power factor measure characteristic：1、Measure and display the power,the current and the voltage simultaneity.2、Amend the voltage,the current and the power automatically by connecting with the computer. Operate 1 Item First Second Operate