The COBRA single stage, direct driven, dry vacuum pumps, with their unique rotary screws, are designed for difficult applications in the pharmaceutical and chemical processing industries.
COBRA单级，直驱动式干燥真空泵，有独特的旋转螺杆，该产品主要应用于药物和化工领域。
The control system of wind turbine based on PAC is researched and designed on the basis of MW-level direct-driven wind turbine in this thesis.
论文以兆瓦级直驱式风力发电机组为基础，研究和设计了基于PAC的风力发电机组控制系统。
This thesis mainly discusses direct-driven permanent magnet synchronous wind energy conversion system (WECS) used back-to-back PWM converter.
本文以双pwm变换器控制的直驱式永磁同步风力发电系统为研究对象。
The results of the thesis are valuable for the design and control of the direct-driven wind PMSG.
本文的研究工作对直驱式风力PMSG的设计和控制，具有参考价值。
Direct-driven PMSG works at low speed and its size is generally big.
直驱永磁同步风力发电机运行转速低，一般定子外径都比较大。
The structure and control of direct-driven permanent magnet synchronous wind power generation system are analyzed, and the development direction of variable speed wind power generation is introduced.
对直驱式永磁同步风力发电系统的结构与控制进行了分析，并展望变速风力发电的发展趋势。
The structure and control of direct-driven permanent magnet synchronous wind power generation system are analyzed, and the development direction of variable speed wind power generation is introduced.
对直驱式永磁同步风力发电系统的结构与控制进行了分析，并展望变速风力发电的发展趋势。
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