Since torque ripple is the main cause of noise and vibrations, the performance of Switched Reluctance Motor (SRM) can be improved by minimizing its torque ripple using a novel control technique called Direct Torque Control (DTC). In DTC technique, torque is controlled directly through control of magnitude of the flux and change in speed of the stator flux vector. The flux and torque are maintai...

The problem being taken up is, the speed servo control of a PMDC motor. The reference input is continuously changing and also the load torque on the motor shaft is continuously varying. A control law based on the load torque is proposed. The Computed Torque Control scheme is used. The load torque, being of unknown kind, cannot be sensed and hence it has to be estimated. The load torque is estim...

Manipulators are controlled to make their end-effector (Tool Centre Point) track a pre-specified trajectory in space. This goal is achieved if the actuators of the manipulator are activated appropriately. The controller, used to calculate these inputs, can have may different forms, each with its own (dis)advantages.

In this article we consider the cerebellum in the vertebrate motor control system. Analyzing the delays in this control loop as well as the complexity of the dynamics of the skeletomuscular system, we £nd that two well-known interpretations of the function of the cerebellum—that of a Smith predictor, or of an inverse model controller—are insuf£cient to solve the control problem at hand.

In this paper we propose a method for human joint torque estimation with surfaceelectromyogram (sEMG) during dynamic joint movements. sEMG measurement is non-invasive and costs less than external force measurement. Typical torque estimation methods from EMG are available for isometric movements. Our method works also during dynamic movement and outputs the torque timehistory data. Their propose...