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Showing 1 to 4 of 4 for “"Synchronous speed"”.
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Analysis of hunting in Synchronous Hysteresis Motor
The Synchronous Hysteresis Motor has an inherent instability when it is used to drive a gyroscope wheel. The motor ideally should spin at a constant angular velocity, but it instead sporadically oscillates about synchronous speed. This phenomenon is known as 'hunting'. This problem produces current …
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Models for Calculating Residual Voltage of Induction Motors.
… a turbine-generator. After the generator speed is increased to synchronous speed and synchronized with the power system, the power to the generator auxiliary is then supplied from the generator itself. Therefore, circuit switching must be used to transfer the auxiliary power supply from …
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Dynamic Braking Control for Accurate Train Braking Distance Estimation under Different Operating Conditions
… the train stopping distance from an initial speed. Parameters that can be varied in the model include initial train speed, railcar weight, wheel-rail interface condition, and dynamic braking force. Other parameters included in the model are aerodynamic drag forces and air brake forces. An …
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Magnetically suspended reaction sphere with one-axis hysteresis drive
… agreement between computed and measured sphere speed data validated the motor model. Experimental data shows that a starting torque of 8.15 mNm is achieved at 0.7 A peak excitation current. Under this excitation, the sphere arrives synchronous speed of 1,800 rpm within 6 s. The sphere can reach …