The characteristic signals and features of the standby state of elevator are researched based on the standby power or current characteristics of elevator.On this basis,the automatic energy saving device based on online detection for standby state of elevator is designed for implementing the functions of automatic recognition of long term standby and stopping the power supply.The result of experiment shows that this device effectively realized energy saving for standby state.%基于电梯待机状态的功率和电流特性,研究了电梯待机状态的表征信号及其特征.在此基础上,设计了基于在线检测的电梯待机状态自动节能装置,用以实现长时间待机状态自动识别并停止供电的功能.结果表明,该装置能够有效实现待机状态节电功能.
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