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A smooth moving control method of the power assisted vehicle (PAV) based on a fuzzy neural networks is presented. The PAV is used to generate power for saving use's effort, and PAV needs human-guided to recognize the environment, plan the trajectory without danger of collision. According to the human thrust, PAV provides the assisted force by two servomotors lined the wheels. However, if the gain...
In this paper, a method for changing the control mode based on position and force errors called the SCOME method is applied to a two-fingered robot hand composed of elastic joints. This robot is called a chopsticks-type robot and a cylindrical object is grasped and transported by the robot. First, we propose a control strategy for the robot based on a desired value of position and force for grasping...
Aiming at the shortcomings such as low power factor and strict manufacturing technology of traditional transverse flux permanent-magnet motor (TFPM), this paper has proposed a new topology of low power four-phase flat-type TFPM. SolidWorks was applied to build motor's 3-D model, which was used in electro-magnetic finite element analysis (FEA) in Ansys. A prototype was manufactured and primary testing...
This paper presents a direct torque control (DTC) scheme using space vector modulation (SVM) to achieve high performance speed control of a permanent magnet synchronous motor. Based on the concept of a field-oriented control principle, a Proportional-integral (PI) flux controller is first established to achieve fast direct flux control and then cascade schemes of PI torque and speed controllers are...
This paper presents a modified single-pole switching scheme to depress turbine-generator blade torsional torques. During the dead time between single-pole tripping and line reclosing, the two healthy phases still maintain partial power transmission, which gives rise to significantly negative sequence current flowing into the nearby turbine-generator and may lead to supersynchronous resonance (SPSR)...
This paper presents the passivity-based position control of induction motors by using the composite adaptation scheme. Firstly, a current model rotor flux observer estimates the flux, and then the adaptive laws estimate the inverse rotor time constant, moment of inertia, viscous coefficient, and load torque of a motor. The passive properties of the negative feedback connection of the flux observer...
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