The suggested system makes use of a single phase HFAC pulse density modulation(PDM) converter as the interface to connect energy storage unit and power source for induction motor drive system.
系统采用间接矢量控制技术，通过高频交流脉冲密度调制接口变换器，对功率进行协调控制。
Study the data exchange and the interface of PDM system and the platform. The entire he industrial design of pneumatic nail gun PDM system integration and development was achieved.
研究了PD M系统与工业设计平台之间的接口关系及数据交互，完成了整个基于工业设计pdm系统的集成与开发。
The automatic extraction information becomes especially important in order to making PDM systems to disengage CAD software by interface technology.
通过接口技术使PD M系统不依靠CAD软件，自动提取信息变得尤为重要。
The automatic extraction information becomes especially important in order to making PDM systems to disengage CAD software by interface technology.
通过接口技术使PD M系统不依靠CAD软件，自动提取信息变得尤为重要。
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