A Disturbance Observer-Based Current-Constrained Controller for Speed Regulation of PMSM Systems Subject to Unmatched Disturbances

a new type-ii fuzzy logic based controller for non-linear dynamical systems with application to 3-psp parallel robot

abstract type-ii fuzzy logic has shown its superiority over traditional fuzzy logic when dealing with uncertainty. type-ii fuzzy logic controllers are however newer and more promising approaches that have been recently applied to various fields due to their significant contribution especially when the noise (as an important instance of uncertainty) emerges. during the design of type- i fuz...

A HIGH SPEED CURRENT dq PI CONTROLLER FOR PMSM DRIVE

Original scientific paper A Field Programmable Gate Array (FPGA) based solution of current dq PI controller is proposed in this research, which is usually implemented in digital signal processor (DSP) based computer. The main problem in DSP based solution is the execution time, which is usually in microseconds range as well as reaching its physical limits. Therefore, completing the execution wi...

Robust H_∞ Controller design based on Generalized Dynamic Observer for Uncertain Singular system with Disturbance

This paper presents a robust ∞_H controller design, based on a generalized dynamic observer for uncertain singular systems in the presence of disturbance. The controller guarantees that the closed loop system be admissible. The main advantage of this method is that the uncertainty can be found in the system, the input and the output matrices. Also the generalized dynamic observer is used to est...

Nonlinear disturbance observer-based control for multi-input multi-output nonlinear systems subject to mismatching condition

Current Sensor Fault Diagnosis Based on a Sliding Mode Observer for PMSM Driven Systems

This paper proposes a current sensor fault detection method based on a sliding mode observer for the torque closed-loop control system of interior permanent magnet synchronous motors. First, a sliding mode observer based on the extended flux linkage is built to simplify the motor model, which effectively eliminates the phenomenon of salient poles and the dependence on the direct axis inductance...