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Advanced driving system of the three-phase DC motor
Hanuš, Radek ; Boušek, Jaroslav (referee) ; Háze, Jiří (advisor)
The main aim of this thesis is to design and develop a control unit for a three-phase direct current motor that will be able to maximize its efficiency. To accomplish this request a field oriented control combined with modified phase driving signals is used. The emphasis is put on the creation of a simple and unique solution as well as the ability to use this device in the single wheel wehicle, which previous bachelor thesis was focused on. The first part of this thesis lists some of commercially available and do-it-yourself solutions together with their attributes. The next part describes target motors and different options of how to control them. The third part focuses on the field oriented control, its individual parts and features, as well as the final solution. And finally the realization of the electrical part, firmware, PC application and necessary settings are described at the very end of the thesis.
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Analysis of the impacts of DS element failures on reliability indicators
Vachutka, Ondřej ; Hanuš, Radek (referee) ; Ptáček, Michal (advisor)
Bachelor's thesis deals with the impacts of distribution network element failures on reliability indicators. Therefore it makes basic description of the reliability, the reliability indicators or the regulation of continuity in distribution of electric power. It also presents main results of the identification and evaluation of individual 22 kV elements failures in distribution network of PREdistribuce, a. s. between 2011 to 2016.
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Single wheel vehicle
Hanuš, Radek ; Boušek, Jaroslav (referee) ; Háze, Jiří (advisor)
The main aim of this thesis is to design and build a self-balancing vehicle similar to a skateboard, utilizing only one wheel located in the centre of the device. The steering will be controlled by driver‘s tilt and the ride will resemble snowboarding or surfing. The initial part focuses on a comparison between commercially available devices. Frequently used components and their main attributes are described in the next part. After that, a possible solution is outlined, followed by an electrical design and firmware‘s function explanation. Final build, its set-up and overall results are summarised in the last part of this thesis.
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Advanced Driving System Of The Three-Phase Dc Motor
Hanuš, Radek
The presented article briefly outlines a field-oriented control algorithm used to drive a permanent magnet three-phase DC motor with efficiency maximization and its modification to reduce overall computational complexity. This enables the utilization of the algorithm in computer constrained devices, for example in a self-balancing vehicle, which the algorithm and electronics were previously designed for.
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Characteristics of garnets from the locality Dolní Olešnice and problematics of their source rocks
Jaroměřský, Štěpán ; Matějka, Dobroslav (advisor) ; Hanus, Radek (referee)
Pyrope is one of the representatives of the garnet supergroup, which are known for their use in jewellery and have a rich history in the Czech Republic. However, despite their long-term use, a part of the supergroup is still unexplored and the source rock is unclear at some localities, which makes it difficult to explain the development of the deposit and the formation of surrounding geological units. This bachelor thesis describes pyrope as a Czech garnet and summarizes views on the issue of its primary source rock in the Czech Republic. This thesis also deals with characterizing of pyropes from the locality of Dolní Olešnice and discusses their primary source rock, the geological situation of the surrounding area, the method of mining and the minerals of the heavy fraction. Based on the study of available literature, a wealth of information about the pyropes from Dolní Olešnice was gathered, which could be the basis for further more detailed research of the area and the localisation of the pyrope source rock here. A geochemical heavy minerals prospecting was also carried out on the site to assess the quality of the pyrope drifting ability for several recommended flows in the area. Key words: garnets, garnet supergroup, pyrope, Dolní Olešnice, Podkrkonoší, mining, geochemical heavy minerals...
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Advanced driving system of the three-phase DC motor
Hanuš, Radek ; Boušek, Jaroslav (referee) ; Háze, Jiří (advisor)
The main aim of this thesis is to design and develop a control unit for a three-phase direct current motor that will be able to maximize its efficiency. To accomplish this request a field oriented control combined with modified phase driving signals is used. The emphasis is put on the creation of a simple and unique solution as well as the ability to use this device in the single wheel wehicle, which previous bachelor thesis was focused on. The first part of this thesis lists some of commercially available and do-it-yourself solutions together with their attributes. The next part describes target motors and different options of how to control them. The third part focuses on the field oriented control, its individual parts and features, as well as the final solution. And finally the realization of the electrical part, firmware, PC application and necessary settings are described at the very end of the thesis.
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Analysis of the impacts of DS element failures on reliability indicators
Vachutka, Ondřej ; Hanuš, Radek (referee) ; Ptáček, Michal (advisor)
Bachelor's thesis deals with the impacts of distribution network element failures on reliability indicators. Therefore it makes basic description of the reliability, the reliability indicators or the regulation of continuity in distribution of electric power. It also presents main results of the identification and evaluation of individual 22 kV elements failures in distribution network of PREdistribuce, a. s. between 2011 to 2016.
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Single Wheel Vehicle
Hanuš, Radek
This article briefly describes a design and a construction of a self-balancing vehicle, similar to a skateboard, but only with one wheel located in the centre of the device. The wheel is driven by a motor and embedded electronics to keep the driver upright and move the vehicle accordingly to his tilt, so that the ride will resemble skateboarding, snowboarding or even surfing.
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Single wheel vehicle
Hanuš, Radek ; Boušek, Jaroslav (referee) ; Háze, Jiří (advisor)
The main aim of this thesis is to design and build a self-balancing vehicle similar to a skateboard, utilizing only one wheel located in the centre of the device. The steering will be controlled by driver‘s tilt and the ride will resemble snowboarding or surfing. The initial part focuses on a comparison between commercially available devices. Frequently used components and their main attributes are described in the next part. After that, a possible solution is outlined, followed by an electrical design and firmware‘s function explanation. Final build, its set-up and overall results are summarised in the last part of this thesis.
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