This paper presents a novel open-loop speed control method for induction motors that provides high output torque and nearly zero steady-state speed error at any frequency.
提出了一种新颖的感应电机开环速度控制法，在任一频率下，它不但能使电机输出高的力矩，而且使稳态速度误差几乎等于零。
Particularly suitable for requests to run a smooth, low noise, fast response, long life, high output torque applications.
特别适合要求运行平稳、低噪音、响应快、使用寿命长、高输出扭矩的应用场合。
A quadric transducer coordinately driving spherical USM was proposed and fabricated. This kind of USM has merits such as simple structure and high output torque.
研制了一种基于四换能器协调驱动的球型超声电机，该电机具有结构简单、输出转矩大等优点。
A quadric transducer coordinately driving spherical USM was proposed and fabricated. This kind of USM has merits such as simple structure and high output torque.
研制了一种基于四换能器协调驱动的球型超声电机，该电机具有结构简单、输出转矩大等优点。
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