The system is designed as circulation absent and A-A VF controlled one, in which a responsive motor driving the main ventilation fan is controlled in a vector control technology without speed sensor.
系统采用无环流交-交变频控制方案、应用无速度传感器的矢量控制技术对拖动煤矿主扇风机的感应电动机进行控制。
The analysis on the simulation results in stepless speed regulating system of automotive air-conditioning fan shows that the fuzzy PI control is better than the conventional PI control.
通过对汽车空调风机的无级调速系统仿真结果的分析，表明模糊pi控制优于传统的PI控制，证明了该无级调速系统仿真模型的正确性。
This design is based on AT89C51 development speed system of remote control electric fan.
本设计是基于AT 89 C51单片机开发的电扇遥控调速系统。
This system USES the monolithic fan speed control PWM give, non-pollution characteristics of energy saving, high efficiency and convenient use, the function is rich, has certain market prospect.
本系统采用单片机pwm给电风扇调速，具有无污染、节能、高效的特色，并且使用方便，功能丰富，具有一定的市场前景。
The control equipment includes centralized control device for set, AC field system of exciter, device for assisting magnetism (DAM), speed sensor of generator, and braking controller for blower fan.
控制装置设有机组集控装置、励磁机交流励磁装置、发电机助磁装 置、发电机转速传感器和风机制动控制器；
The control equipment includes centralized control device for set, AC field system of exciter, device for assisting magnetism (DAM), speed sensor of generator, and braking controller for blower fan.
控制装置设有机组集控装置、励磁机交流励磁装置、发电机助磁装 置、发电机转速传感器和风机制动控制器；
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