ac speed control meaning in English

交流转速控制

Ac speed control technology is one of the most important progress in the 20th century , and it has taken up most parts of the drive - field
交流调速技术是20世纪后期人类社会的重大技术进步之一，是目前最活跃的研究领域之一。
Due to the highest efficiency and the best capability in the ac speed control system , the ac vvvf speed regulation is regarded as a important field in modern electrical technology
由于在各种异步电动机调速系统中效率最高，同时性能也是最好，是现代电力传动技术的重要发展方向。
Following this conclusion , various kind of ac speed control rules have been analyzed with the favor given to the self - controlled frequency regulation drive . machine model for doubly fed power generation has been given and control equations are discussed
其次，借鉴各种交流调速方法，研究电机双馈发电运行的模型和控制手段，采用自控式调频，提出了绕线转子双馈发电机的矢量控制策略。