{"title":"MISO configuration efficiency in inductive power transmission for supplying wireless sensors","authors":"Bilel Kallel, T. Keutel, O. Kanoun","doi":"10.1109/SSD.2014.6808915","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808915","url":null,"abstract":"Inductive power transmission depends on many parameters such as the distance and the alignment between the coils, the working frequency, the current excitation, the geometry and the property of the coils, etc. Exchanging power distance between coils in wireless power transmission using inductive link is generally low, it is shorter than the diameter of the sending coils. Consequently, increasing coil to coil distance causes a harm decrease of the transmitted power and the efficiency of the system. A major technical challenge affecting the use of this kind of power transmission is to find a way of sending energy to the target devices in an efficient and reliable manner taking into account this influencing effect. In this paper, we explored potential solutions to overcome this challenge by adopting a Multiple Input Single Output (MISO) coil system able to decrease the magnetic flux leakage and orientate the magnetic field to the receiving coil by powering the neighbor coils of the active ones in opposite direction. This technique can be implemented in many industrial applications such as supplying wireless sensors installed into a conveyor. Same parameters according the model of the coupled coils on SISO and MISO configurations are developed and simulations by finite element method are done. The investigation shows that the MISO orientated system is capable to transfer 42 mW over a 50 mm distance and reaching 30% efficiency.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122463449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"VSC-based DTC-SVM with adaptive parameter estimation","authors":"F. B. Salem, N. Derbel","doi":"10.1109/SSD.2014.6808813","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808813","url":null,"abstract":"This paper describes a robust sliding mode control with parameter adaptive estimation for a DTC-SVM system. The proposal combines advantages and benefits of both (i) DTC-SVM approach, which produces constant switching frequency, and overcomes several problems of induction machine control, and (ii) variable-structure controllers (VSC) which offer fast dynamic response, and which are easy to implement. Proposed variable structure controllers are designed to provide fast and accurate torque and flux controls which replace traditional hysteresis comparators. A new adaptive parameter estimation scheme is described. The synthesis of such controllers and parameter estimators is done using the Lyapunov stability theory. Simulation results dealing with steady-state as well as dynamic behaviors of the controlled induction motor show the efficiency and the robustness of the designed controllers and estimators.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125784495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Decoupled droop control techniques for inverters in low-voltage AC microgrids","authors":"J. Quesada, J. A. Sainz, R. Sebastián, M. Castro","doi":"10.1109/SSD.2014.6808850","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808850","url":null,"abstract":"This paper discusses the droop control method for inverters participating in low voltage microgrids and its application as a primary control layer which can be actuated from a secondary control layer to dispatch active and reactive power. To that end, an independent and decoupled relationship between frequency and active power; and voltage and reactive power is desirable. When the classic droop control method is applied to inverters connected to the microgrid through RL type impedance, this decoupled actuation is lost. Different variants of decoupled techniques are presented and analyzed from the point of view of static and dynamic behavior. The analysis is supported on a linear dynamic phasor model of the droop controlled inverter, and verified by simulations of behavior in an isolated microgrid and in grid tied mode using a detailed SIMULINK/SimPowerSystems model of the inverter and its internal control. Among the diverse techniques, the recently proposed droop control method with dynamic decoupling is signaled as advantageous, not only in terms of decoupled actuation but also in flexibility in adjustment of static and dynamic response.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126391254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Khalid A. Darabkh, R. Al-Zubi, Mariam T. Jaludi, Hind Al-Kurdi
{"title":"An efficient method for feature extraction of human iris patterns","authors":"Khalid A. Darabkh, R. Al-Zubi, Mariam T. Jaludi, Hind Al-Kurdi","doi":"10.1109/SSD.2014.6808803","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808803","url":null,"abstract":"A system that automatically recognizes individuals based on biometric traits has been an attractive goal for researchers for a long time. Iris recognition is a biometric identification method that combines computer vision and pattern recognition. It produces one of the most accurate methods available for security systems because of the uniqueness of the human iris. The process of iris recognition is split into 4 major steps. These steps are: Iris segmentation, normalization, feature extraction, and matching. This paper focuses on the step of feature extraction and encoding. A new method is proposed to extract features from the iris image. The method uses a sliding window technique and mathematical operations on the pixels to produce a feature vector. Experimental results of the method produced a relatively small feature vector of size 5×120, which contributes to the efficiency and speed of an iris recognition system, as well as reducing the amount of memory needed. The algorithm written for the method also includes a step to eliminate the effect of varying light intensity, which improves the accuracy of the overall system as well as reduces the time needed to acquire an image with suitable lighting. Other techniques to unify the level of light intensity among all images were applied as well. Evaluation of the method was done by considering various performance metrics such as the false acceptance rate (FAR), false rejection rate (FRR), and the recognition rate of the algorithm. The recognition rate achieved from the proposed method was about 98.54%.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127264196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Wi-Fi LDPC encoder with approximate lower triangular diverse implementation and verification","authors":"Yi Hua Chen, Jue-Hsuan Hsiao, Zong Yi Siao","doi":"10.1109/SSD.2014.6808840","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808840","url":null,"abstract":"This study referenced the approximate lower triangular code check matrix in the low density parity check code of IEEE P802.11n™/D1.04 (Part 11: Wireless LAN Medium Access Control). The matrix was written in the LabVIEW programming language. Using a unified program architecture, yielded three subblock sizes (27, 54, and 81 bits) and four code rates (1/2, 2/3, 3/4, 5/6). Redundancy bits were calculated to generate 12 distinct codewords as stipulated by the 802.11n wireless standard. A mask matrix design was adopted to distinguish the “0” and spaces in the code check matrix. Finally the code check matrix was multiplied using transposed codewords to verify the accuracy of the codes.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125429290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Control of parallel EHV interconnection lines using Phase Shifting Transformers","authors":"Anas El Hraiech, K. Ben-Kilani, M. Elleuch","doi":"10.1109/SSD.2014.6808829","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808829","url":null,"abstract":"Power systems interconnected with Extra High Voltage tie-lines are prone to unscheduled power flows. This paper investigates how to control these flows in parallel EHV interconnection lines using Phase Shifting Transformers (PST). A phase-angle regulated PST placed in a longitudinal transmission network is modeled. A real system application concerns the Tunisian-Algerian 400kV/225kV parallel interconnections. Different placement locations, operating scenarios, and control options are tested. The PST based solutions are discussed in terms of power flow control, voltage support and economic aspects.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116802066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Haroun, A. E. Aroudi, A. Cid-Pastor, L. Martínez-Salamero
{"title":"Sliding Mode Control of output-parallel-connected two-stage boost converters for PV systems","authors":"R. Haroun, A. E. Aroudi, A. Cid-Pastor, L. Martínez-Salamero","doi":"10.1109/SSD.2014.6808810","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808810","url":null,"abstract":"In this paper, we consider a system consisting of n photovoltaic (PV) panels, each one with its maximum power point tracking (MPPT) controller, connected to a dc bus through dc-dc two-stage boost converters. A storage battery is connected to the grid using a bidirectional dc-dc converter for controlling the energy transfer between two dc buses. Each converter is behaving as a loss free resistor (LFR) imposed by a Sliding-Mode Control (SMC). The power flow on the bidirectional converter depends on the balance between the input power to the dc grid and the power consumed by the load. Mathematical modeling is addressed for a complete scheme consisting of n output-paralleled converters. An ideal reduced-order sliding-mode dynamics model is derived from the full-order switched model revealing that the stability of the system can be ensured just by guaranteing the stability of each standalone two-stage boost converter which in turn is guaranteed only by imposing sliding mode dynamics for each stage. From the stability analysis the design of the system can be addressed. Numerical simulations for a case study for n = 2 corroborate the theoretical predictions","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114476036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Receiver desensitization in Envelope Tracking PA based FDD LTE transceivers","authors":"A. Cidronali, S. Maddio, G. Collodi, G. Manes","doi":"10.1109/SSD.2014.6808876","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808876","url":null,"abstract":"This paper analyses the issue of receiver desensitization, due to the interaction with the transmitter in Envelope Tracking (ET) based FDD transceivers. The purpose of the study is to assess the possible trade-offs between the several system parameters, the implementation constraints and the system performance. The data reported in the paper consider an accurate model of the ET-PA obtained by a previous research, and a combination of data-flow and envelope simulations. The test signal adopted as case study is a legacy LTE10 for up-link user equipments. The paper shows that a best trade-off between the DAC ENOB in the envelope modulation path, and the shaping function discretization, consists respectively in 9 bit and 2^6 byte.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127712531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optoelectronic properties of silicon photodetector doped with indium or aluminum","authors":"W. F. Mohammed, M. Al-Tikriti, Mudhar A. Humoody","doi":"10.1109/SSD.2014.6808746","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808746","url":null,"abstract":"In this research paper, the photoelectronic properties of laboratory fabricated silicon photodetector doped with indium or aluminum are measured and discussed. The effects of diffusion temperature, diffusion time, doping and reverse voltages on the photoelectronic properties are analyzed. It was found that the PN devices exhibit very good rectification properties at 1050 °C diffusion temperature and 30 minutes diffusion time. I-V characteristic curves showed that samples doped with 150 nm indium and 200 nm of aluminum exhibit better electronic properties of low leakage current with ideality factors equal to 1.7 and 1.87 respectively. Photogenerated current exhibits maximum value at 0.85 μm and it still has more than 35% of its maximum values at 1.1 μm wavelength. The correlation of the simulated and the experimentally measured results show that the profile of photogenerated current with the wavelength is almost identical in shape. Furthermore the position of the peak currents occurs nearly at the same wavelength.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131787307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Nasir, M. Mysorewala, L. Cheded, Bilal A. Siddiqui, Muhammad Sabih
{"title":"Measurement error sensitivity analysis for detecting and locating leak in pipeline using ANN and SVM","authors":"M. Nasir, M. Mysorewala, L. Cheded, Bilal A. Siddiqui, Muhammad Sabih","doi":"10.1109/SSD.2014.6808847","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808847","url":null,"abstract":"This paper presents an approach for detecting, locating and estimating the size of leak in a pipeline using pressure sensors, differential pressure sensors and flow-rate sensors. To overcome the problem with existing approaches we use differential pressure sensors that detect small change in pressure in order to detect small change in leak size. The pipeline system is modeled and simulated in EPANET software, and the input-output data acquired from it (i.e. sensor measurements and the leak locations and sizes) are used in MATLAB and DTREG software to develop Artificial Neural Network (ANN) and Support Vector Machines (SVM) models. Comparison of results shows that SVM is less sensitive and more stable to noise increment than ANN. However the performance of ANN is better with very small noises.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129693680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}