iosr-JEEE   Volume-13 ~ Issue-6 ~ Nov-Dec 2018

Abstract: The quality of electrical power is the major important goal of all researchers. In utility power system it has been observed that harmonics build a major role in reducing the quality power. These harmonics caused by nonlinear loads. Many consumers appliances demand quality power continuously for their operation. The performance of the end user equipment is heavily dependent on the quality of power supplied to it. This power is affected by various external and internal factors. They are like voltage and frequency variations, faults, outages etc. The solution to overcome these problems is to filter out these harmonics. For this purpose, there are many filters topologies are proposed and studied in the literature to eliminate harmonics currents. In this paper, three phase 4-wire hybrid filter is proposed with Self-Tuning-Filter (STF).in this paper, a hybrid power filter is proposed to solve problems of line harmonic..........

[1] Azmera Sandeep, "study of hybrid active filter power filter for power quality improvement," thesis,Roukela, India,2014.
[2] G. W. Chang, and C. M. Yeh, "optimization-based strategy four shunt active power filter control under non-ideal supply voltages,"
IEE Proc-Electr. Power appl., Vol. 152, N.2, March 2005.
[3] Kim, H., Blaabjerg, F., Bak-Jensen, B., and Choi, J., "Instantanneous power compensation in three-phase systems by using p-q-r
theory," IEEE Trans. Electron, vol.17, N.5, pp. 701-710, 2002.
[4] T.Mahni, M. TBenchouia, K. Srairi, A. Ghamri, A. Golea "thre-phase for wire shunt active filter with unbalanced loads",Energy
Procedia 50, pp. 528–535. 2014.
[5] M.C. Benhabib, S. Saadate, "New Control Approach for Four-Wire Active Power Filter Basedon the Use of Synchronous Reference
Frame", Elsevier B.V. Electric Power Systems Research 73, pp. 353–362,2004..

Abstract: Multilevel inverters are power electronic devices that changes over DC to AC quantity. But these devices produces non-sinusoidal signal which contains harmonics. So as to be overcome this problem a 31-level cascaded multilevel inverter topology was developed. The proposed inverter topology has been designed based on the minimum number of switches, switching power losses and total harmonic distortion[THD] when compared to the symmetrical seven level and asymmetrical fifteen level inverter topology. The simulation results are presented showing the validity of the analysis.

Index terms: multilevel inverter, power electronics, fundamental switches.

[1]. P.Roshan kumar,P.P.Rajeeevan,K.Mathew "A five level inverter topology with Single dc supply by cascading a flying capacitor inverter and an H-bridge" IEEE transactions on power electronics,vol.27,no.8 aug2012.
[2]. WU.B.High power converters and AC drives, Hobokew, NJ ohm Wiley and sons, inc.2006.
[3]. N.Sandeep, P.Salodkar and P.S.Kulkarni, "A New simplified multilevel inverter topology for grid connected applications." In proc.IEEE Students conference on electrical electronics and engineering and computer science 32138 K.Srinivasa Rao et at [SCEECS], Bhopal, India, PP.1 6, Mar.2014
[4]. J.Rodriguez, J.Slai and F.Z.Peng "Multilevel inverters a survey of topologies, controls, and applications." IEEE trans.ind.electron.vol.49, no.4, PP. 724-738, Aug-2002.
[5]. L.M.Jolbert, I.Z.Peng and T.G.Hobelter "Multilevel converters for large electric drives."IEEE Trans.ind, apply, vol.35, no.1, PP.36-44, jan.1999..

Abstract: The electrical networks used today are established in 1883 according to the design principles published by Tesla. In time, due to the rapid development of technology has become unable to meet today's needs. In order to eliminate this problem, the smart grid concept was introduced especially after 2000s. The smart grid is the network system that is obtained by integrating modern technologies into electric power networks. Intelligent networks capable of providing real-time bidirectional exchange of information at all stages, from the point at which electricity is generated........

Key Words: Smart Grids, Optimization Algorithms, Artificial Bee Colony Algorithm, Firefly Algorithm

[1]. M. Amin, "A smart self-healing grid: in pursuit of a more reliable and resilient system [in my view]," IEEE Power Energy Mag., vol. 12, no. 1, pp. 110-112, Jan./Feb. 2014

[2]. M. Muthamizh Selvam, R. Gnanadass, N.P. Padhy, Initiatives and technical challenges in smart distribution grid, In Renewable and Sustainable Energy Reviews, Volume 58, 2016, Pages 911-917, ISSN 1364-0321.

[3]. J. Popovi´c-Gerber, J. Oliver, N. Cordero, T. Harder, J. Cobos, M. Hayes, S. O'Mathuna, and E. Prem, "Power electronics enabling efficient energy usage: energy savings potential and technological challenges," IEEE Trans. Power Electron., vol. 27, no. 5, pp. 2338–2353, May 2012

[4]. L. Hernandez, C.Baladr´on, J. Aguiar, B. Carro, A. Esguevillas, J. Lloret, and J. Massana, "A survey on electric power demand forecasting: future trends in smart grids, microgrids and smart buildings, " IEEE Commun. Surveys & Tutorials, vol. 16, no. 3, pp. 1460–1495, 3rd Quarter 2014.

[5]. R. Bayindir, I. Colak, G. Fulli, K. Demirtas, Smart grid technologies and applications, In Renewable and Sustainable Energy Reviews, Volume 66, 2016, Pages 499-516, ISSN 1364-0321.

Abstract: The repeated case of power system collapse in the Nigerian National Grid isof a great concern and need to be investigated. This research paper discusses the effect of voltage collapse and the methods of power generation with respect to the Nigerian National Grid. Other major causes of voltage instability were also examined. Politics has been known to be one of the major factors responsible for epileptic power supply in the country as a result of corruption within the power sector. Single Line Diagram (SLD) showing all the generating stations and transmission network and the distances covered is also presented. Results recorded an average of twenty five disturbances over a period of twenty three years under investigation (January, 1995- July, 2017). 2003is the year with the highest number........

Keywords: Large system disturbances, Political factor, Voltage collapse, Voltage instability, National grid,

[1]. Nigeria Electricity Regulatory Commission (NERC) "The Grid Code for Nigeria Electricity Transmission System," Version 1, pp. 66 –74, 1st August 2007.
[2]. L. D Arya, "Voltage Stability Evaluation using Line Voltage Stability Index," IE(I) Journal-El Vol 87, December 2006, pp. 1-7.

[3]. S. Almeida, N. Machado and R. Pestana, "Voltage Collapse: Real Time and Preventive Analysis in the Portuguese Transmission System," 2007 IEEE Lausanne Power Tech, Lausanne, 2007, pp. 1817-1822.
[4]. M. Hasani and M. Parniani, "Method of Combined Static and Dynamic Analysis of Voltage Collapse in Voltage Stability Assessment," 2005 IEEE/PES Transmission & Distribution Conference & Exposition: Asia and Pacific, Dalian, 2005, pp. 1-6

[5]. Kundur, Prabha, Neal J. Balu, and Mark G. Lauby. "Power system stability and control," The EPRI power system engineering series, New York: McGraw-hill, 1994, pp.816-920

Abstract: This paper describes the fixed PV systems tilt angle and the single tracking system. It looked at the performance of each system in terms of the voltage output and compares the two to find a better performing system. This paper also through the experiment which was conducted seek to verify a phenomenon already established by previous research to determine if the comparison done at a smaller scale would provide similar results. The experiment had an Arduino based control system. The experimental setup used two light dependent resistors (LDRs) which were fixed onto the PV module. Any correction signal generated due to inequality of voltage outputs of the two LDRs.........

[1] Y. Zhang, N. Gatsis, G.B. Giannakis, Robust energy management for microgrids with high-penetration renewables, IEEE Trans. Sustain. Energy 4 (2013)
[2] D. Neves, M.C. Brito, C.A. Silva, Impact of solar and wind forecast uncertainties on demand response of isolated microgrids, Renew. Energy 87 (2016)
[3] Y. Zhang, G. Giannakis, Efficient decentralized economic dispatch for microgrids with wind power integration, in: 2014 Sixth Annual IEEE Green Technologies Conference (GreenTech), 2014, pp. 7e12
[4] M. Soshinskaya, W.H.J. Crijns-Graus, J.M. Guerrero, J.C. Vasquez, Microgrids: experiences, barriers and success factors, Renew. Sustain. Energy Rev. 40 (2014) 659e672.
[5] M. Mohammadi, S.H. Hosseinian, G.B. Gharehpetian, Optimization of hybrid solar energy sources/wind turbine systems integrated to utility grids as microgrid (MG) under pool/bilateral/hybrid electricity market using PSO, Sol. Energy 86 (2012) 112e125.

Abstract: The main objective of this work is to study the performance of photovoltaic module based on silicon amorphous technology (a-si) installed on the roof of a building 10 m high of ESTL (Morocco). The system was monitored between December 2017 and November 2018 and all the electricity produced was injected into the building's low voltage power supply. The elements of performance evaluated monthly and annually include: energy output, system efficiency, reference yield, final yield, performance ratio and annual capacity factor. For a-Si, the investigation of the annual : Productivity EAC, System efficiency Ƞ𝑠𝑦𝑠, and performance ratio (PR) are found as 2868,33kWh, 8,67%, and 79,28% respectively. The average annual daily final yield and capacity factor were 1889,8h and 16.3% respectively...........

Keywords: Capacity factor, Energy yield, Final yield, Reference yield, Performance ratio

[1]. J. H. R. Enslin, M. S. Wolf, D. B. Snyman, et W. Swiegers, « Integrated photovoltaic maximum power point tracking converter », IEEE Trans. Ind. Electron., vol. 44, no 6, p. 769‑773, déc. 1997.
[2]. M. M. Saied et al., « Optimal design parameters for a PV array coupled to a DC motor via a DC-DC transformer », IEEE Trans. Energy Convers., vol. 6, no 4, p. 593‑598, déc. 1991.
[3]. « WFC Renewable Energy boosting Development in Morocco 2015 ».
[4]. « "Royaume du Maroc Analyse d'impact s socio-économiques de la politique de croissance verte au Maroc – volet énergie » .
[5]. N. Aarich et al., « Photovoltaic DC yield maps for all Morocco validated with ground measurements », Energy Sustain. Dev., vol. 47, p. 158‑169, déc. 2018...

Abstract: Almost every operational physical system in engineering is designed with a concept of mathematical principle which has theories backing them, thus making these systems theory-driven. On the contrary, these systems operate based on parameters which are seen as data. With advanced technique of data acquisition and data processing, these systems can be modeled using the acquired data and parameters thus converting the theory-driven models to data-driven models. In this paper, an automated electrically operated dehydration bed is modelled and analysed using the automatic generation of expression approach. Analysis confirmed a high level of excitation in the input data sets. The excitation orders for all the inputs are [50 50 50] meaning that model with orders higher than 50 will be problematic to estimate.

[1]. Akpabio, E.J., Aimikhe, V.J.,Dynamics of Solid Bed Dehydration in a Niger Delta Natural Gas Liquids Plant, International Journal of Engineering and Technology,2012;2(12):
[2]. Andersson, L., Jönsson, U., Johansson, K. H., Bengtsson, J. "A manual for system identification,Laboratory Exercises in System Identification. KF Sigma i Lund AB. Department of Automatic Control, Lund Institute of Technology, 1998.
[3]. Åström, K.J. Eykhoff, P. System identification—A survey, Automatica,, 20097(2):23-162.
[4]. Avila, S., Benito, A., Berro, C., Blanco, S. T., Otín, S., Velasco, I. Dew-Point Curves of Natural Gas. Measurement and Modelling, Industrial & Engineering Chemistry Research,2002,45(14):179-5184.
[5]. Avila, S., Blanco, S. T., Velasco, I., Rauzy, E., Otı́n, S. Thermodynamic properties of synthetic natural gases: Part 4. Dew point curves of synthetic natural gases and their mixtures with water: measurement and correlation.Fluid phase equilibria,2002, 202(2):399-412.

Abstract: Numerous strategies have been created so as to consider the effect conduct of solids and structures. Two
basic strategies are limited component and exploratory technique. The nonlinear limited component technique is
one the best strategies for foreseeing the conduct of RC bars from zero-burden to disappointment and its crack,
yield and extreme qualities. The benefit of this technique is its capacity to make this expectation for all segments of
the surveyed RC bar and all phases of stacking. This paper thinks about the test results acquired for a RC outline
with the numerical outcomes determined by ABAQUS programming, and plots the two arrangements of results as
hysteresis–dislodging charts. This examination shows that the numerical FEM actualized by means of ABAQUS
programming produce legitimate and dependable outcomes for load bearing limit of RC outlines exposed to cyclic
burdens, and hence has noteworthy expense and time productivity favorable circumstances over the elective
methodology

KeyWords: ABAQUS; Reinforced Concrete Frame; Displacement Force Diagrams; Pushover Analysis.

[1] Batikha, M. and F. Alkam, The effect of mechanical properties of masonry on the behavior of FRP-strengthened masonry infilled RC
frame under cyclic load. Composite Structures, 2015. 134: p. 513-522.
[2] Rai DC, Seismic rehabilitation of structures. India: Department of earthquake engineering. 2009, University of Roorkee.
[3] Kumar, V. and K. Ramamurthy, Meshfree and finite element modelling of impact: A comparative study. International Journal of Impact
Engineering, 2016. 90: p. 146-153.
[4] Balomenos, Genikomsou, Aikaterini S, Polak, Maria Anna Pandey, Mahesh D, Efficient method for probabilistic finite elemen t
analysis with application to reinforced concrete slabs. Engineering Structures, 2015. 103: p. 85-101.
[5] Jiang, H., X. Liu, and J. Mao, Full-scale experimental study on masonry infilled RC moment-resisting frames under cyclic loads.
Engineering Structures, 2015. 91: p. 70-84.

Abstract: Diabetes mellitus is a common disease caused by a set of metabolic ailments where the sugar stages
over drawn-out period is very high. It touches diverse organs of the human body which therefore harm a huge
number of the body's system, in precise the blood strains and nerves. Early prediction in such disease can be
exact and save human life. To achieve the goal, this research work mainly discovers numerous factors
associated to this disease using machine learning techniques. Machine learning methods provide effectual
outcome to extract knowledge by building predicting models from diagnostic medical datasets together from the
diabetic patients. Quarrying knowledge from such data can be valuable to predict diabetic patients. In this
research, six popular used machine learning techniques, namely Random Forest (RF), Logistic Regression (LR),
Naive Bayes (NB), C4.5 Decision Tree (DT), K-Nearest Neighbor (KNN), and Support Vector Machine (SVM)
are compared in order to get outstanding machine learning techniques to forecast diabetic mellitus. Our new
outcome shows that Support Vector Machine (SVM) achieved higher accuracy compared to other machine
learning techniques.

Key Word: machine learning, C4.5 Decision Tree, Support Vector Machine, Logistic Regression,
Naive Bayes, K-Nearest Neighbor, and Random Forest, diabetes.

[1]. V., A. K. and R., C. 2013. Classification of Diabetes Disease Using Support Vector Machine. International Journal of Engineering
Research and Applications. 3, (April. 2013), 1797-1801.
[2]. Carlo, B G., Valeria, M. and Jesús, D. C. 2011. The impact of diabetes mellitus on healthcare costs in Italy. Expert review of
pharmacoeconomics & outcomes research. 11, (Dec. 2011),709-19.
[3]. Nahla B., Andrew et al. 2010. Intelligible support vector machines for diagnosis of diabetes mellitus. Information Technology in
Biomedicine, IEEE Transactions. 14, (July. 2010), 1114-20.
[4]. Abdullah A. Aljumah et al., Application of data mining: Diabetes health care in young and old patients, Journal of King Saud
University - Computer and Information Sciences, Volume 25, Issue 2,July 2013, Pages 127-136
[5]. Kavakiotis, Ioannis, Olga Tsave, AthanasiosSalifoglou, NicosMaglaveras, IoannisVlahavas, and IoannaChouvarda. "Machine
learning and data mining methods in diabetes research." Computational and structural biotechnology journal (2017).

Abstract: Recent developments in the field of magnetic materials and power electronics, along with the
availability of cheap powerful processors, have increased the adoption of brushless direct current (BLDC)
motors for various applications, such as in home appliances as well as in automotive, aerospace, and medical
industries. The wide adoption of this motor is due to its many advantages over other types of motors, such as
high efficiency, high dynamic response, long operating life, relatively quiet operation, and higher speed ranges.
This paper presents a simulation of digital sensor control of permanent magnet BLDC motor speed using the
MATLAB/SIMULINK environment. A closed loop speed control was developed, and different tests were
conducted to evaluate the validity of the control algorithms. Results confirm the satisfactory operation of the
proposed control algorithms.

Key Word: BLDC motors Hall sensors Modeling Speed control

[1] P. K. Sharma and A. S. Sindekar, "Performance analysis and comparison of BLDC motor drive using PI and FOC," pp. 485-492,
2017.
[2] W. A. Salah, et al., "Electric vehicle technology impacts on energy," International Journal of Power Electronicsand Drive Sys tems,
vol/issue: 10(1), pp. 1-9, 2019.
[3] J. Rizk, et al., "Brushless DC motor control using a digital signal controller," in Proceedings of the 5th WSEASinternational
conference on Circuits, systems and signals (CSS'11), pp. 23-28, 2011.

Abstract: In mobile Ad-hoc Network (MANET), each mobile device can move in the direction of its choice and hence will frequently change its links to other devices. A routing protocol in MANET has the challenges of facing frequently changing topology, symmetric links and low transmission power. Mobile devices are powered by batteries and if transmission and reception of data occurs frequently, it would be impossible for the battery power of the mobile device to withstand for a long time. Therefore, efficient power management is important to boost the lifetime of the battery. In this paper, a competent technique with modified Ant Colony Optimization (ACO) algorithm is proposed to improve the power management and routing of MANET. The proposed algorithm is implemented in Zone Routing Protocol (ZRP) which combines the benefits of proactive and reactive approaches, by maintaining a map of topology up-to-date.

Key Word: Mobile Ad-hoc Network, Multicast Routing Protocol, Intra Zone Routing Protocol, Inter zone Routing Protocol, Ant Colony Optimization

[1]. Yu-Chee Tsenga, Chih-Shun Hsub, Ten-YuengHsieha, 2016. Power-saving protocols for IEEE 802.11-based multi-hop ad hoc networks, Computer NetworksVolume 43, Issue 3, 22 October 2003, Pages 317–337
[2]. U.Venkanna, Jeh Krishna Agarwal, R. Leela Velusamy, 2015. A Cooperative routing for MANET based on distributed trust and energy management. WirelessPersonal Communications, 81(3): 961-979.
[3]. Nidhi Rani, Sonal Rana, 2015. Review Paper on Energy Efficient Zone Routing Protocol. International Journal of Advanced Research in Computer Engineering & Technology (IJARCET), 4(10): 3767-3771.
[4]. RavillaDilli, Putta Chandra Shekar Reddy, 2012. Energy management in ZRP. International journal of Emerging Technology and Advanced Engineering, 2(5): 61-68.
[5]. AnubhutiVerma, 2012. Adhoc Network Routing Optimization and Performance Analysis of ACO Based Routing Protocol. International journal of Advanced Research in Computer Engineering and Technology, 1(1): 1-7..