A robust two-degree-of-freedom control scheme is proposed for permanent magnet synchronous motor PMSM using extended state observer ESO . The robustness is achieved based on the ESO. Parameter perturbation and external disturbances in PMSM drive system are treated as disturbance variable, and then the motion model of PMSM is transformed into an extended state model by introducing this disturban...

We propose new methods to evaluate variable subset relevance with a view to variable selection. Relevance criteria are derived from Support Vector Machines and are based on weight vector ‖w‖2 or generalization error bounds sensitivity with respect to a variable. Experiments on linear and non-linear toy problems and real-world datasets have been carried out to assess the effectiveness of these c...

 This paper presents an optimal design of Variable Structure Load Frequency Controller using Particle Swarm Optimization Algorithm. The optimal design provides a simple systematic way for obtaining optimum feedback gains and switching vector for VSC. It also includes a new method to reduce the chattering associated with the Variable Structure Controllers (VSC). The proposed method has been app...

Using instrumental variable methods to estimate the parameters of dynamic errors-in-variables systems with a periodic input signal is the focus in this report. How to choose suitable instrumental variable vectors is the key point. Four variants are proposed; all of them can generate consistent estimates. An analysis shows that the best accuracy is achieved by using a specific overdetermined ins...

this study aims at providing an explanation of electronic human resource management (e-hrm) and introducing its activities and tools. furthermore, we investigate the effect of various independent variables such as job satisfaction, professional commitment, organizational commitment… on the effectiveness of hrm as a dependent variable. for this purpose, by cluster sampling from iranian hr manage...

abstract the aim of this study is to investigate effectiveness of interaction between stress inoculation training and identity styles on psychological well-being and perceived stress. participates were selected through the simple random samplings procedure. sixty seven clients were divided by random assignment into two groups on the basis of their identity style (normative, diffuse/avoidant). t...

This paper presents a method for robot self-recognition and self-adaptation through the analysis of the contact between the robot end-effector and its surrounding environment. Often, in off-line robot programming the idealized robotic environment (the virtual one) does not reflect accurately the real one. In this situation we are in the presence of a Partially Unknown Environment (PUE). Thus, r...

Time-delay identification is one of the most important parameters in designing controllers. In the cases where the number of inputs and outputs in a system are more than one, this identification is of great concern. In this paper, a novel autocorrelation-based scheme for the state variable time-delay identification for multi-input multi-output (MIMO) system has been presented. This method is ba...

This review illuminated principal school leadership as a variable that impacted achievement. The principal as school leader and manager was explored because these roles were thought to impact student achievement both directly and indirectly. Specifi c principal leadership behaviors and principal effectiveness were explored as variables potentially impacting both teachers and student achievement...