Control of Fuel Cell Systems in Mobile Applications

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Low-power Renewable Possibilities for Geothermal IoT Monitoring Systems

Nowadays, humanity is facing a difficult challenge, because of sustainable energy use and production. One of the major ways to solve this problem is the usage of renewable energy as a sustainable and reliable source of electric power and heat. This trend is also obvious in the field of the Internet of Things (IoT), where research teams are increasingly focusing on renewable energy and its monitoring with IoT. This paper aims to map current research on the use of the Internet of Things with a special focus on use in geothermal applications. Information concerning renewable geothermal energy sources and individual IoT communication technologies is summarized. A basic Bluetooth iBeacon test case is also presented.©2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.fi=vertaisarvioitu|en=peerReviewed

Self Tuning Techniques on PLC Background and Control Systems With Self Tuning Methods Design

Advanced Process Control techniques have become standard functions of distributed control systems. Self tuning methods belong to Advanced Process Control (APC) techniques. APC techniques contain software packages for advanced control based on mathematical methods. APC tools are designed to increase the process capacity, yield and quality of products. Most of nowadays digital industry regulators and PLCs are provided with some kind of the self tuning constant algorithm. Practical part of the paper deals with design of the control systems which contain self tuning regulator. A control system with PID Self Tuner by Siemens and with visualization in WinCC is designed. There is a description of an implementation of the PID regulator as a function block which can be also used for extension control functions. Control systems for relay and moment self tuner with visualizations in WinCC are also designed