6 research outputs found
A novel morphin-based obstacle avoidance control algorithm for USVs
No full textThis is an effort of employing good obstacle avoidance algorithms for unmanned surface vehicles (USV) which are already
developed for unmanned ground vehicles (UGV). Previously developed Morphin algorithm is utilized for the obstacle
avoidance ofUGV. Simulations were carried out using MatLab to prove the validity of the algorithms. Approach towards the
results and results are presented. Other USV developers can employ these algorithms for their developments
Fuzzy logic-based navigation of a boat
No full textThis paper mainly describes designing and simulating a fuzzy logic-based navigational controller for unmanned
surface vehicles. The controller considered in this study is consists a fuzzy based systems. MatLab framework with
Fuzzy Logic toolbox was used to design and implementing the whole system. MatLab programs were used for the
navigational controller simulation. The basic design procedure and the simulation procedure were included in the
paper in detail. The results including the desired and actual paths are plotted
On the obstacle avoidance control of autonomous surface vessels
No full textThis is an effort of employing obstacle avoidance algorithms for unmanned surface vehicles which are already
developed for unmanned ground vehicles. Previously developed mathematical model and fuzzy-based navigational
controller is utilized with obstacle avoidance algorithms, for simulations. All the programs were developed in the
MatLab environment. The approach is briefed and the simulation results are presented
Experimental set-up to study power quality in single-phase split-phase distribution systems
No full textPublisher Copyright: © 2023, European Association for the Development of Renewable Energy, Environment and Power Quality (EA4EPQ). All rights reserved.Power Quality (PQ) has been an important topic since the creation of distribution systems. The deployment of the Advanced Metering Infrastructure (AMI) provided an important tool to measure the PQ of the electric power in the consumption points. One of the smallest secondary distribution systems in terms of power consumption is the single-phase split-phase system (120 V/240 V) that countries such as the United States, Canada, and some countries of central and south America have. Due to its size, this secondary distribution system is more prone to PQ issues. To that end, an experimental set-up was built by the authors so the distribution system from the Low Voltage (LV) transformer to the final appliances of the different houses was emulated. The aim is to capture the currents and voltages observed by the smart meter located at the entrance of the house and look for the different responses. A combination of real and dummy loads was installed in the set-up, so real noise could also be simulated. The set-up was totally automated by an industrial controller and relays, and it produced a very detailed dataset that could be used for multiple purposes.The authors gratefully acknowledge the contributions of the Hubbell Research group and the BIKAINTEK funding programme of the Basque Government for the funding of these experiments and also Joseba Jimeno and the technician Roberto Gonzalez for their work done during the construction of this set-up. Authors also wish to thank the collaboration of Izar Lopez-Ramirez during the conduction of the experiments.Peer reviewe
Floating Neutral Detection Using Actual Generation of Form 2S Meters
No full textPublisher Copyright: © 2020 IEEE.In the low-voltage distribution system of the USA, Canada and some countries of Central and South America, the most used configuration is the single-phase three-wire system (120 V/240 V) also known as the split-phase distribution system. When the neutral wire of the distribution system gets damaged or broken the current returns through the ground and a floating neutral condition arises. Service to the house continues without interruptions because no high over-currents come up. If the return path impedance is high enough, the equally balanced voltage system gets shifted, going out of boundaries and causing malfunctions in the appliances or even fire. A new classification-based detector is proposed to detect this condition, which only needs current measurements that the actual generation of form 2S meter gathers. Moreover, due to the simplicity of the algorithm, it can be embedded in the current generation of meters, which represents great potential of the detector. To that end, the low-voltage distribution system is modelled using a real database and some assumptions are made. The proposed novel detector approach shows zero false alarms in the houses tested and a detection time that allows the fault to be detected before significant damage occurs to the house.Peer reviewe
