The diploma describes the upgrade of a control system on a wood biomass grinder. In the introductory part, I presented the preparation of wood biomass at the Termoelektrarna-toplarna Ljubljana. I have described the key devices that are used to prepare the wood biomass for the biomass grinder. The initial condition of the wood biomass grinder before the upgrade and the components involved in controlling the device are described. Key reasons for starting this project are also given.
In the central part of the work, I described a new programmable logic controller and the reasons why I decided for this type of a controller. Part of the project was also the development of a control program for a wood biomass grinder. I described the control program through parts of the program that take care of controlling the individual components. I also described how we operate the device and how the programmable logic controller works during the technological process.
In the final part, I described the project results and the operation of the wood biomass grinder after changing the controller. The main advantages of the new programmable logic controller compared to the old one are described.
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