Power maximization of variable-speed variable-pitch wind turbines using passive adaptive neural fault tolerant control

Power maximization has always been a practical consideration in wind turbines. The question of how to address optimal power capture, especially when the system dynamics are nonlinear and the actuators are subject to unknown faults, is significant. This paper studies the control methodology for variable-speed variable-pitch wind turbines including the effects of uncertain nonlinear dynamics, system fault uncertainties, and unknown external disturbances. The nonlinear model of the wind turbine is presented, and the problem of maximizing extracted energy is formulated by designing the optimal desired states. With the known system, a model-based nonlinear controller is designed; then, to handle uncertainties, the unknown nonlinearities of the wind turbine are estimated by utilizing radial basis function neural networks. The adaptive neural fault tolerant control is designed passively to be robust on model uncertainties, disturbances including wind speed and model noises, and completely unknown actuator faults including generator torque and pitch actuator torque. The Lyapunov direct method is employed to prove that the closed-loop system is uniformly bounded. Simulation studies are performed to verify the effectiveness of the proposed method

Augmented reality (ar) application in manufacturing encompassing quality control and maintenance

Augmented Reality (AR) systems present a technological platform that allows a harmonious integration of the real and virtual worlds, structured with endless capabilities in its application. With the rise of information technology, AR has made a significant contribution to industrial applications, namely: medicine, aviation, manufacturing, etc. This paper aims to provide dipper insightful on AR technology by investigating the current state-of-the-art of AR technology usage in the manufacturing industry encompassing quality control and maintenance. It describes how AR technology has been integrated into quality control and maintenance, current and available AR devices in use, and future research direction

Overview: the 15th Jkuat Scientific, Technological and Industrialization Conference

The conference provided a forum through which the university showcases ongoing contributions it is making to the society; created a forum for constantly improving the University’s approach to development-oriented scientific research, as it strives to remain a leader in this area; provided a forum for research peers from local and international institutions to discuss, share and publish vital information; provided an opportunity for the industrial/business sectors and policymakers to interact with researchers, so as to get new ideas and products for infusion into the production system and research and provoked policy makers to appreciate the need for substantial and long-term investments in scientific research, innovation and industrialization