[关键词]
[摘要]
根据变频器母线电流在电机运行于加载和制动时的不同特征,通过采集变频器母线电流实时监测电机运行状态,设计了双向DC/DC变换器模式切换与控制器通断控制电路,实时识别电机运行状态,实现对储能单元在线动态控制。通过搭建550 W的储能系统试验平台,验证了所设计状态识别与控制电路的合理性。
[Key word]
[Abstract]
According to the different characteristics of the DC bus current of the inverter when the motor was running in loading or braking, the operation state of the motor was monitored in real time by collecting the DC bus current of the inverter, and a bidirectional DC/DC converter mode switching and controller on-off control circuit was designed to realize the online dynamic control of the energy storage unit. A 550 W energy storage system experimental platform was built and the rationality of the designed state identification and control circuit was verified.
[中图分类号]
TM 301.2
[基金项目]
国家自然科学基金项目(51405330);山西省科技重大专项项目(MJ2016-01)