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The acceleration-oscillogram method of motor-torque measurement
Electrical Engineering, 1942The need for an improved method of measuring starting torque of large induction starting synchronous motors as compared to the power input and dynamometer methods, has led to the use of the acceleration oscillogram. A low ripple, permanent magnet type d-c generator is driven by the motor, and traces a time-speed oscillogram, from which acceleration ...
C. R. Atkinson, E. G. Downie
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Research on Torque Hysteresis Amplitude Adjustable Direct Torque Control Method
2010 International Conference on Innovative Computing and Communication and 2010 Asia-Pacific Conference on Information Technology and Ocean Engineering, 2010The direct torque control (DTC) technique has been widely used as a control strategy for motor drive system. High torque ripple is a major problem when the motor is running at low speed in DTC system. By analyzing the causes of torque ripple, it is can be found that the change of the speed error signal is a good indicator to determine the situation of ...
Gao Sheng-wei +3 more
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A new direct torque control method for switched reluctance motor with high torque/ampere
IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013Switched reluctance motor (SRM) has gained attention due to simple construction, ruggedness, high reliability, low cost, minimum maintenance and advancement in power electronics technology. However, SRM has some inherent disadvantages such as torque ripple, acoustic noise, requirement of rotor position information and control difficulties due to ...
Shambhu Sau +2 more
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Control of Flexible Robot: Extension of the Computed Torque Method
IEEE International Workshop on Intelligent Robots, 2005info:eu-repo/semantics ...
Renders, Jean-Michel +2 more
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2017 International Conference on Robots & Intelligent System (ICRIS), 2017
The ramp automatic torque method in this paper is a new method to transform power torque on ramp for carbon-free car which is only driven by gravitational potential energy. This method is based on the torque structure and rope winding to achieve the good climbing ability of the carbon-free car. The mechanical structure includes starting wheel, climbing
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The ramp automatic torque method in this paper is a new method to transform power torque on ramp for carbon-free car which is only driven by gravitational potential energy. This method is based on the torque structure and rope winding to achieve the good climbing ability of the carbon-free car. The mechanical structure includes starting wheel, climbing
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Methods for direct torque control of induction machines
2017 19th International Conference on Electrical Drives and Power Electronics (EDPE), 2017High performance drives with induction machines require use of vector control. The direct torque control and field oriented control are nowadays two most applied vector control methods. The main advantage of the method for direct torque control of induction machines is its simplicity and therefore its robustness.
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An induced torque method for magnetoresistance measurements
Journal of Physics E: Scientific Instruments, 1970A method is described in which a spherical sample is rotated in a transverse magnetic field while measurements are made of the torque produced by currents induced in the sample. Exact expressions are derived for the torque in terms of the magnetoconductivity tensor, both for a sphere and for an ellipsoid.
J S Lass, A B Pippard
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Torque evaluation method of spherical motors using six-axis force/torque sensor
2016 IEEE International Conference on Robotics and Automation (ICRA), 2016Spherical motors are classified as multi-degrees-of-freedom actuators. Several types of spherical motors are under investigation in the world because they will be useful for robots that currently use combination of 2 or 3 one-degree-of-freedom motors.
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A Method for Acquiring the Torque of a Magnetic Pump
IEEE Transactions on Magnetics, 2011A floating magnetic rotor is synchronized to a rotating magnetic field in the developed pump. We cannot measure or calculate the magnetic torque using a general measurement method because the angle theta (θ) represents the unknown factor between the magnetic field and the magnetic moment on the magnetic rotor. We have converted the relationship between
S. H. Kim, S. Hashi, K. Ishiyama
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Feedforward Method of Engine Torque Estimiation
2006 IEEE International Conference on Vehicular Electronics and Safety, 2006Engine effective torque is a very important performance parameter as well as control parameter. In this paper, a feedforward method of engine torque estimation is presented. After the engine control parameters such as injection pulse width and engine effective torque are gained through engine steady-state experiment, three one-stage statistical models ...
Huang Kaisheng +3 more
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