State of the Art and Conceptual Design of Robotic Solutions for In Situ Hard Coating of Hydraulic Turbines

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• 作者：Renan S. Freitas ; Gabriel A. C. Silva…
• 关键词：Hard coating ; Hydropower ; Turbine ; Thermal spray ; Robotics ; In situ
• 刊名：Journal of Control, Automation and Electrical Systems
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：28
• 期：1
• 页码：105-113
• 全文大小：
• 刊物主题：Electrical Engineering; Control, Robotics, Mechatronics; Control; Robotics and Automation;
• 出版者：Springer US
• ISSN：2195-3899
• 卷排序：28

文摘

Hydropower turbine’s blades are constantly exposed to abrasion and cavitation phenomena, demanding regular maintenance for flow stability. Hard coating techniques by thermal aspersion are used to reduce the mechanical wear, thus increasing blade’s life cycle, and turbine efficiency. Currently, applying a new coating layer requires turbine disassembling and recalibration. EMMA is a robotic system to perform hard coating by thermal spray on hydraulic turbine blades within the turbine environment, i.e., hard coating application to an installed blade, significantly reducing the turbine downtime. This document is a study of the state of the art of in situ hydropower turbine robotic systems and describes the conceptual designs for EMMA. The results outlines the next steps for EMMA and future projects in the same area.