生产控制系统中库存偏差消除策略研究

摘要

When there is error in estimating the production delay time,inventory level will drift from the target in the ＂automatic pipeline,inventory and order based production control system＂（APIOBPCS） model.By adding a PI control in the inventory feedback loop,a PI-APIOBPCS model was proposed,which could eliminate the inventory errors,but productivity and inventory levels fluctuated significantly.And by adding the PD controller in the order rate policy,a PID-APIOBPCS model was proposed,which can effectively eliminate the inventory drifts,and smooth the productivity and inventory levels,and reach the steady state quickly.%在生产控制模型APIOBPCS（automatic pipeline,inventory and order based production con-trol system）中,当企业估计的生产时间与实际生产时间不符时,实际库存水平与目标库存水平之间存在一定的偏差。通过在库存反馈环中加入PI（proportional plus integral）控制机制,构建了PI-API-OBPCS系统。该系统能够有效地消除库存偏差,但会使生产率和库存水平波动扩大。通过在生产控制环节中加入PD（proportiona