Energy efficient control strategies have been of recent interest in literature as promising measures to reduce the energy consumed by production equipment during interruptions of part flow. A general time-based control policy is analyzed. Machine idle times are assumed stochastic and the expected value of the energy consumed per produced part is reduced while assuring a certain target of expected production rate. The startup time required to resume the service depends on the time period the machine stays in a low power consumption state. Since the startup is often related to one or more machine components, the optimal policy might be to partially switch the machine. Therefore, a policy acting at component level is also analyzed where the duration of the startup depends on the set of machine components that are switched off. The policy is compared to state-of-the-art policies and discussed for a set of simulated numerical cases representing several production environments.

节能控制策略最近在文献中引起了人们的兴趣，作为在部分流中断期间减少生产设备消耗的有希望的措施。分析了一般的基于时间的控制策略。假设机器空闲时间是随机的，并且在确保预期生产率的某个目标的同时，每个生产部件消耗的能量的预期值会降低。恢复服务所需的启动时间取决于机器处于低功耗状态的时间段。由于启动通常与一个或多个机器组件相关，因此最佳策略可能是部分切换机器。因此，还分析了在组件级别起作用的策略，其中启动的持续时间取决于关闭的机器组件集。