2017 11-13 Oct. 2017 https://repository.utm.md/handle/5014/4602 2026-04-20T11:53:05Z 2026-04-20T11:53:05Z Faults Diagnosis in Transport and Distribution Lines Based on the Analytic Model IVANOV, Virginia BROJBOIU, Maria IVANOV, Sergiu https://repository.utm.md/handle/5014/7208 2019-11-26T15:14:15Z 2017-01-01T00:00:00Z Faults Diagnosis in Transport and Distribution Lines Based on the Analytic Model IVANOV, Virginia; BROJBOIU, Maria; IVANOV, Sergiu The method based on analytic models can be used when the system behavior is compared with the results of the mathematical model which reproduces the system in normal operation conditions. The paper applies the diagnosis method based on the analytic model by investigating the waveforms of the currents and voltages specific to a transport and distribution line when interruption fault occurs. For identifying the fault, the waveforms corresponding to different faults are stored in an information database and compared with the ones corresponding to the normal operation. The paper presents a microcontroller based system used to control switching of interruption fault for transport and distribution lines. Abstract & References 2017-01-01T00:00:00Z A Note on Leakage Diagnosis for an Irrigation Network MARZOUGUI, T. BENELGHALI, S. OUTBIB, R. DOUMENC, F. https://repository.utm.md/handle/5014/7207 2019-11-26T15:08:05Z 2017-01-01T00:00:00Z A Note on Leakage Diagnosis for an Irrigation Network MARZOUGUI, T.; BENELGHALI, S.; OUTBIB, R.; DOUMENC, F. This note is a contribution to the problem ofb leakage detection in irrigation networks. The main goal is to reduce the lost water due to the leakages. This lost water represents a source of useless electrical energy spending. The problem is tackled by using water volume-balance method. The considered case study concerns the irrigation network of Carpentras, situated in south of France. Abstract & References 2017-01-01T00:00:00Z A Theoretical Result on Stabilizability of Oxygen Excess Ratio for PEM Fuel Cell NIANE, Moustapha ZERROUGUI, Mohamed OUTBIB, Rachid https://repository.utm.md/handle/5014/7206 2019-11-26T14:38:12Z 2017-01-01T00:00:00Z A Theoretical Result on Stabilizability of Oxygen Excess Ratio for PEM Fuel Cell NIANE, Moustapha; ZERROUGUI, Mohamed; OUTBIB, Rachid This paper is a contribution to the problem of the control of PEM Fuel Cell. More precisely, a theoretical result is proposed to prove that the oxygen excess ratio value can controlled by using a continuous state feedback. The result is established without any linearization. Abstract & References 2017-01-01T00:00:00Z Computer Assisted Diagnosis of Automatic Signalling Installations with Blinking Red Lights SPUNEI, Elisabeta PIROI, Ion MUSCAI, Cristian PIROI, Florina https://repository.utm.md/handle/5014/7205 2019-11-26T14:29:13Z 2017-01-01T00:00:00Z Computer Assisted Diagnosis of Automatic Signalling Installations with Blinking Red Lights SPUNEI, Elisabeta; PIROI, Ion; MUSCAI, Cristian; PIROI, Florina This work presents a modern method for the diagnosis of railroad level crossing automatic signalling installations. The method proposed here is based on diagnosis diagrams designed by the authors. The diagrams cover all failure types that can occur for these types of installations. The diagrams were, then, used to create a diagnosis software package, which can rapidly and securely determine the failure cause. The computer assisted diagnosis reduces train traffic delays and fewer train traffic redirects are needed, diagnosis errors are practically eliminated. The software can run on any Windows or Android based computing systems. Abstract & References 2017-01-01T00:00:00Z