# Archive

## STEADY FLOW OF AN OLDROYD-B FLUID THROUGH A FOUR-TO-ONE ABRUPT CONTRACTION

#### DOI NO:

https://doi.org/10.26782/jmcms.2020.03.00001

#### Abstract:

This study looks the steady problem which models the behavior of incompressible non-Newtonian viscoelastic Oldroyd-B fluid through a four-to-one abrupt contraction in a bidimensional domain The constitutive equations for the Oldroyd-B fluids consist of highly non-linear system of partial differential equations (PDE) of combined elliptic-hyperbolic type. The numerical results are obtained by a technique of decoupling the system into the Navier-Stokes like problems for the velocity and pressure (elliptic part of the system) and the steady tensorial transport equation for the extra stress tensor (hyperbolic part of the system). To approximate the velocity and pressure,  (Hood-Taylor) finite elements method is used whilethe discontinuous Galerkin finite element method is used to solve the tensorial transport part to approximate the extra stress tensor. Through the flow over four-to-one abrupt contraction domain, the effects of varying the parameters, i.e., i.e., Reynolds number, Weissenberg number, relaxation and retardation time parameter, on the contours of the velocity profile, stream line, pressure and extra stress tensor are presented, analyzed and discussed graphically.

#### Keywords:

Viscoelastic fluid,Oldroyd-B fluid,Navier-Stokes equations,tensorial transport equations,finite element method,abrupt contraction,

#### Refference:

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## EXPERT SMART METERING SYSTEM USING HOMOMORPHIC ENCRYPTION WITH DOUBLE CONJUGACY PROBLEM

#### Authors:

V. Jalaja, G.S.G.N. Anjaneyulu

#### DOI NO:

https://doi.org/10.26782/jmcms.2020.03.00002

#### Abstract:

In this article, initially we propose a new cryptosystem based on conjugacy using automorphism over non-commutative groups. We applied the proposed cryptosystem to design expert smart meters based on homomorphic encryption with double conjugacy. Smart meters will communicate mostly errorless client electricity consumption readings to suppliers. Although this provides benefits for both entities, it results in a severe loss of privacy for customers. We integrate a monitoring purpose system that preserves customer’s privacy by homomorphically accumulating the consumptions of all n members of a domain. This expert smart system has an proficient linear O(n) communication cost and is proven to protect customer’s privacy even in the presence of a corrupted substation and some malicious smart meters. It need not have any secure communication channels or a trusted third party(except for allotting public key certificates). The security of cryptosystem and smart metering depends on conjugacy and homomorphism. We also demonstrated that the comparison of smart meters with electronic meters by real time data.

#### Keywords:

Cryptosystem,Homomorphic Encryption,Conjugacy Problem ,Smart Metering,

#### Refference:

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VII. Danezis G, FournetC, Kohlweiss M, Zanella-BeguelinS, “Smart meter aggregation via secret sharing”, in Proceedings of Smart Energy Grid Security Workshop , pp.75-80, 2013.

VIII. Efthymiou C, Kalogridis G, “Smart grid privacy via anonymization of smart metering data”, in Proceedings of the First IEEE International Conference on smart Grid Communications, pp.238-243, 2010.

IX. Finster S, Baumgart I, “Privacy aware smart metering: a survey”, in IEEECommun.Surv.Tutor, 2014.

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XIV. Li F, Luo B, liuP, “Secure information aggregation for smart grids using homomorphic encryption”, in Proceedings of the First IEEE International Conference on smart Grid Communications , pp.327-332, 2011.

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XXI. Thoma C, Franz Franchetti T C, “Secure multiparty computation based privacy preserving smart metering system”, 2012.

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XXIV. Yukun N, Xiaobin T, Shi C, Haifeng W, Kai Y , Zhiyong BU, “A security privacy protection scheme for data collection of smart meters based on homomorphic encryption”, in Eurocon, 2013.

## A COMPARATIVE ANALYSIS ON CONTROLLERS OF BEARINGLESS SWITCHED RELUCTANCE MOTOR

#### Authors:

Nagaraju, Seetha Chaithanya, Hareesh Sita, D.V. Kiran

#### DOI NO:

https://doi.org/10.26782/jmcms.2020.03.00003

#### Abstract:

A variable speed motor is a switched reluctance motor (SRM) most widely used in many number of applications in industries. The major challenge in switched reluctance motor is production of high noise and vibrations due to its double salient design. For this bearingless switched reluctance motor (BSRM) is a feasible solution. It is an electromagnetic device combining conventional motor with active magnetic bearing. Currently, in caseofBSRMthe research have been fastened due to its simple and rugged construction, cost and fault tolerance as compared to conventional motors.This paper gives a comparative analysisonBSRMcomponents, its design considerations and different types of intelligent controllersareexplained in detail.

#### Refference:

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VIII. Guohai,L., Yukun,S.,Yue, S., Hao,Z., Wenxiang,Z.,“Dynamic Decoupling Control of Bearing-less Switched Reluctance Motors Based on Neural Network Inverse System.,”World Journal of Modeling and Simulation, Vol.3, no.1,pp.66-72,2007.

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XII. Lee, D., and Ahn, J., “Design and Analysis of Hybrid Stator Bearing-less SRM” Journal of Electrical Engineering & Technology vol. 6, no. 1, pp. 94~103, 2011.

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XX. S. Chaithanya, Reddy, V. N. B., &Kiranmayi, R.“Performance evaluation of PMSG-based LFAC system for offshore wind power”. International Journal of Ambient Energy, pp. 1-6, 2019.

XXI. Sun, Qin, Xin Cao, and Zhiquan Deng. “Direct torque and force control for dual-winding bearingless switched reluctance motor.” Electrical Machines and Systems (ICEMS), 2014 17th International Conference on. IEEE, 2014.

XXII. S.Chaithanya, Reddy, V.N.B. and Kiranmayi, R., “Modeling & analysis of grid-tied PMA based offshore wind energy system using PSCAD/EMTDC”. Ain Shams Engineering Journal, vol. 10, no. 2, pp.411-417, 2019.

XXIII. Takemoto, M., Chiba, A.,Fukao, T,”A Method Of Determining Advanced Angle Of Square-Wave Currents In Bearing-less Switched Reluctance Motors,” IEEE Industry Applications Conference, Conference Record of the 2000, Vol. 1, pp.241- 248, 2000.

XXIV. T.Halmeaho, T. Harnooja, A. Manninen, J. Pippuri, “Magnetic bearing as Switched Reluctance Motor feasibility study for bearinglessSwitchedReluctance Motor”, IEEE International Electric Machines & Drives Conference (IEMDC), 2013.

XXV. Wang, H.; Wang, Y.; Liu, X.; Ahn, J.W., “Design Of Novel Bearing-less Switched Reluctance Motor,” Electric Power – Applications, IET , vol.6, no.2, pp.73-81, February 2012.

XXVI. W. N. Fu, X. Zhang, and S. L. Ho, “A Fast Algorithm for Frequency Domain Solutions of Electromagnetic Field Computation of Electric Devices Using Time-Domain Finite-Element Method,” IEEE Transactions on Magnetics, vol. 49, no. 1, pp. 530-535, 2013.

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XXVIII. X. Cao, Z. Deng, G. Yang and X. Wang, “Independent Control of Average Torque and Radial Force in Bearingless Switched-Reluctance Motors with Hybrid Excitations,” IEEE Trans. Power Electron.,vol. 24, no. 5, pp. 1376-1385, 2009.

XXIX. Xin Cao, J. Zhou, C. Liu, and Z. Deng, “Advanced Control Method for a Single Winding BearinglessSwitched Reluctance Motor to Reduce Torque Ripple and Radial Displacement,” IEEE Trans. Energy Conversion., vol. 32, no. 4, pp. 1533–1543, 2017.

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XXXI. Z. Guan, D.-H. Lee, J.-W. Ahn and F. Zhang, “A Compensation Strategy of Suspending Force in Hybrid Type Stator Pole Bearingless Switched Reluctance Motor,” in Proc. International Conference on Electrical Machines and Systems (ICEMS), 2011.

## THE IMPLEMENTATION OF DIFFERENTIAL SUBORDINATION AND SUPERORDINATION THEOREMS FOR ACHIEVING POSITIVE ANALYTIC FUNCTIONS

#### Authors:

D. Madhusudana Reddy, E. Keshava Reddy

#### DOI NO:

https://doi.org/10.26782/jmcms.2020.03.00004

#### Abstract:

Suppose  assume that complex numbers  such thatas  well as well as  Where The conditions are satisfactory for analytic function Cauchy’s Riemann equations are satisfied for the functions Here observe that the most excellent  subordinate and best leading. The applications are applied of those results are equivalent;ask as well as results to generalize and number of known results. By using a method based upon the Briot-Bouquet differential subordination, we prove several subordination results involving starlike and convex functions of complex order. Some special cases and consequences of the main subordination results are also indicated [I]. The main object of the present sequel to the aforementioned works is to apply a method based upon the Briot-Bouquet differential subordination in order to derive several subordination results involving starlike and convex functions of complex order[II],[III]. We also indicate some interesting special cases and consequences of our main subordination results.

#### Keywords:

convex function,Star like function function,Differential subordination,Differential super ordination,

#### Refference:

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XII. N. Tuneski, On a criteria for starlikeness of analytic functions, Integral Transforms and Special Functions, 14(3), 2003, 263-270.
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XIV. N. Tuneski, On Some Simple Sufficient Conditions for Univalence, MathematicaBohemica, 126(1), 2001, 229-236.
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XVI. S. S. Miller, P.T. Mocanu, Differential Superordinations: Theory and Applications, Series on monographs and textbooks in pure and applied mathematics ( No. 225 ), Marcel Dekker, New York and Basel, 2000.
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XXI. V. Ravichandran, Certain applications of ¯rst order di®erential subordination, Far East J. Math. Sci., 12(1), 2004, 41-51.
XXII. V. Ravichandran, N. Magesh, R. Rajalakshmi, On Certain Applications of Di®erential Subordinations for Á-like Functions, Tamkang J. Math.,36(2), 2005, 137-142.
XXIII. V. Ravichandran, C. Selvaraj, R. Rajalaksmi, Su±cient Conditions for Starlike Functions of Order ®, J. Inequal. Pure and Appl. Math. 3(5), 2002, 81, 1-6.
XXIV. V. Ravichandran, M. Darus, On a criteria for starlikeness, International Math. J., 4(2), 2003, 119-125.
XXV. V. Singh, N. Tuneski, On a Criteria for Starlikeness and Convexity of Analytic Functions, ActaMathematicaScientia, 24, 2004, 597-602.
XXVI. V. Singh, On some criteria for univalence and starlikeness, Indian J.Pure. Appl. Math. 34(4), 2003, 569-577.

## OPTIMIZED FORCE DISTRIBUTION ON A COUPLED, SELF-ADAPTIVE, THREE PHALANXES PROSTHETIC FINGER

#### Authors:

Mahmood Hamid Yasen, Nabil Hassan Hadi

#### DOI NO:

https://doi.org/10.26782/jmcms.2020.03.00005

#### Abstract:

The significance of prosthesis and amputation have been presented, then the concept of under-actuation mechanism has been demonstrated, followed by an optimization procedure to get equal force distribution on a Coupling and Self-Adaptive three phalanxes prosthetic finger (iso-forced finger)Developing kinematic-mathematical model to get the required relations, to derive the objective function, then using multi-variable optimization with constraints, to determine the state of iso-forced finger. Discussing the results of the optimization and finding the average of the lengths of each link, finally explaining the stability of the new configuration, and the advantages of the new methodology.

#### Refference:

I. A NOTE ON GRASHOF’S THEOREM. Wen-Tung Chang*, Chen-Chou Lin**, and Long-Iong Wu***. 2005, Journal of Marine Science and Technology, pp. 239-248.
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## EFFECT OF THE LUBRICANT ADDITIVES ON THE DYNAMIC BEHAVIOUR OF ROTOR BEARING SYSTEMS

#### Authors:

Tariq M. Hammza, EhabN.Abas, Nassear R. Hmoad

#### DOI NO:

https://doi.org/10.26782/jmcms.2020.03.00006

#### Abstract:

The effect of using lubricant oil additives on the dynamic behaviour of rotor bearing system has been studied in this paper; the modified lubricant oil viscosity relation due to adding additives to oil has been used in the Reynolds equation to calculate the lubricant oil pressure and reaction forces and the calculate dynamic coefficients of journal bearings. The response of rotor was determined analytical and verified the results with ANSYS software. The results show that the viscosity ratio is increasing with increase of aggregate and volume fraction. The lubricant oil pressure is increasing with increase of nanoparticles aggregate and volume fraction up to 130o bearing angular position then decreasing with increase of aggregate and volume fraction. The dynamic response is generally decreasing with increase of aggregate and volume fraction

#### Refference:

I. Ashutosh Kumar and and Sashindra K Kakoty, “Effect of couple-stress parameter on the steady state performance parameters of two-lobe journal bearing operating with non- Newtonian lubricant”, ScienceDirect, Elsevier, 2018.

II. Ashutosh Kumar and SK Kakoty, “Effect of couple stress parameter on steady-state and dynamic characteristics of three-lobe journal bearing operating on TiO2 Nanolubricants”, Journal of Engineering Tribology 1994-1996 (vols 208-210), DOI: 10.1177/1350650119866028, 2019.

III. Bassim A. Abass, Amal K. A., “Effect of nano-lubrication on the dynamic coefficients of worn journal bearing”, International Journal of Energy and Environment, Issue on applied mechanics research, Volume 8, Issue 6, pp.557-566, 2017.

IV. Binu K.G, Shenoy B.S, Rao D.S and Pai R., “A variable Viscosity Approach for the Evaluation of load Carrying Capacity of oil lubricated Journal Bearing with TiO2 Nanoparticles as lubricant Additives”, Procedia Materials Science 6, 1051 – 1067, ScienceDirect, Elsevier Ltd. 2014.

V. Binu, K. G, Yathish, K, Shenoy, B. S, Rao, D. S.and Pai, R, “Dynamic Performance Characteristics of Finite Journal Bearings Operating on TiO2 based Nanolubricants”, Pertanika, Journal of Science & Technol. 25 (3): 963 – 976, ISSN: 0128-7680, University Putra Malaysia Press, 2017.

VI. Benyebka Bou-Saïd, Hamid Boucherit and Mustapha Lahmar, “On the influence of particle concentration in a lubricant and its rheological properties on the bearing behavior”, Mechanics & Industry, EDP Sciences, DOI: 10.1051/meca/2012006, 2012.
VII. Haisheng Chen, Yulong Ding and Chunqing Tan, “Rheological behaviour of nanofluids”, New Journal of Physics 9, 367, Online at http://www.njp.org/, doi:10.1088/1367-2630/9/10/367, 2007.

VIII. Josua P. Meyer, Saheed A. Adio, Mohsen Sharifpur and Paul N. Nwosu, “The viscosity of Nanofluids: a review of the theoretical, empirical and numerical models”, Nanofluids Research Laboratory, Thermofluids Research Group, Department of Mechanical and Aeronautical Engineering, University of Pretoria, Pretoria 0002, South Africa.2016.

IX. K. Yathish and K. G. Binu, “Static Characteristics of Two-Axial Groove Journal Bearing Operating on TiO2 Nanolubricants Using a Temperature Dependent Viscosity Model”, Journal of Mechanical Engineering and Automation, 7(5): 150-154 DOI: 10.5923/j.jmea.20170705.05, 2017.

X. K. Yathish, K. G. Binu, B. S. Shenoy, D. S. Rao and R. Pai, “Study of TiO2 Nanoparticles as Lubricant Additive in Two-Axial Groove Journal Bearing”, World Academy of Science, Engineering and Technology International Journal of Aerospace and Mechanical Engineering, Vol: 8, No: 11, 2014.

XI. Luis San Andres, “kinematics of journal bearings”, notes 3, online https://rotorlab.tamu.edu/me626/Notes_pdf/Notes03%20Kinematics%20JBs.pdf , 2012.

XII. Maleki Varnoosfaderani, Dashti Rahmatabadi A. and Dehghan A.A, “Analysis of Static Performance of Noncircular Lobed Journal Bearings with Lubricants Containing TiO2 Nanoparticles Using Couple Stress Fluid Model”, ISSN: 2476-6909; Modares Mechanical Engineering;19(1):151-157, Copyright TMU Press, 2019

XIII. Mohammad Yaghoub Abdollahzadeh Jamalabadi, “Effects of Nanoparticle Enhanced Lubricant Films in Dynamic Properties of Plain Journal Bearings at High Reynolds Numbers”, International Journal of Engineering and Technologies, ISSN: 2297-623X, Vol. 13, pp 1-23 doi:10.18052/www.scipress.com/IJET.13.1, SciPress Ltd, Switzerland, 2017.

XIV. S.R. Suryawanshi and J.T. Pattiwar, “Effect of TiO2 Nanoparticle Blended with Lubricating Oil on the Tribological Performance of the Journal Bearing”, Tribology in Industry, Vol. 40, No. 3, p; 370-391, DOI: 10.24874/ti.2018.40.03.04, 2018.

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XVI. Tushar P. Gundarneeya, “Theoretical Analysis of Journal Bearing With Nanolubricants”, International Journal of Scientific Research in Science, Engineering and Technology, IJSRSET | Volume 1 | Issue 3 | Print ISSN: 2395-1990 | Online ISSN: 2394-4099, 2015.

## OPTIMAL AND RELIABLE TRANSMISSION COST ALLOCATION USING LIGHTNING SEARCH ALGORITHM – PARTICLE SWARM OPTIMIZATION IN DISTRIBUTED ENERGY RESOURCES (DER) PLANNING

#### Authors:

MUQTHIAR ALI SHAIK, M. PADMA LALITHA, N. VISHALI3

#### DOI NO:

https://doi.org/10.26782/jmcms.2020.03.00007

#### Abstract:

In the present world scenario, the Distributed Energy Resources (DERs) were getting importance because of their vital importance to plan out a well-defined scheme of Transmission Cost Allocation to the power system. This study focuses on the allocation of optimal and reliable costs for each generating unit for IEEE 30-bus system. This results in economic power generation in all the units of the distributed Energy Resources (DER). To obtain optimal and reliable cost, a cascaded algorithm combining Lightning Search Algorithm (LSA) and Particle Swarm Optimization (PSO) is employed. The LSA obtains the optimal generation unit whereas the PSO determines the optimal cost of generation. Analysis of the power flow was done using the method of Newton Raphson’s method. Line Outage Distribution Factor, Transmission Reliability Margin, Generation cost and load cost are calculated before and after the line outage. The costvalues obtained for the proposed approach of Transmission Cost Allocation are validated with the existing work of Transmission Cost Allocation. The proposed system results in optimal and reliable cost, with economic power generation when compared to the existing method.

#### Keywords:

Transmission Cost Allocation,Lightning Search Algorithm,Particle Swarm Optimization,Distributed Energy Resources,Economic Power Generation,

#### Refference:

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III. Basu, A. K., Bhattacharya, A., Chowdhury, S., &Chowdhury, S. P. (2011). Planned scheduling for economic power sharing in a CHP-based micro-grid. IEEE Transactions on Power systems, 27(1), 30-38
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IX. Li, F., &Tolley, D. L. (2007). Long-run incremental cost pricing based on unused capacity. IEEE Transactions on Power Systems, 22(4), 1683-1689.
X. Monsef, H., &Jaefari, M. (2009). Transmission cost allocation based on the use of reliability margin under contingency conditions. IET generation, transmission & distribution, 3(6), 574-585.
XI. Naderi, E., Seifi, H., &Sepasian, M. S. (2012). A dynamic approach for distribution system planning considering distributed generation. IEEE Transactions on Power Delivery, 27(3), 1313-1322.
XII. Pan, J., Teklu, Y., Rahman, S., & Jun, K. (2000). Review of usage-based transmission cost allocation methods under open access. IEEE transactions on power systems, 15(4), 1218-1224.
XIII. Padhy, N. P., &Kumari, L. (2004, April). Evolutionary programming based economic power dispatch solutions with independent power producers. In 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings (Vol. 1, pp. 172-177). IEEE.
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XVI. Soares, T., Pereira, F., Morais, H., & Vale, Z. (2015). Cost allocation model for distribution networks considering high penetration of distributed energy resources. Electric Power Systems Research, 124, 120- 132.
XVII. Wang, J., Zhong, H., Xia, Q., & Kang, C. (2017). Optimal planning strategy for distributed energy resources considering structural transmission cost allocation. IEEE Transactions on Smart Grid, 9(5), 5236-5248.
XVIII. Wang, J., Zhong, H., Tang, W., Rajagopal, R., Xia, Q., & Kang, C. (2018). Tri-level expansion planning for transmission networks and distributed energy resources considering transmission cost allocation. IEEE Transactions on Sustainable Energy, 9(4), 1844-1856.
XIX. Yang, Z., Zhong, H., Xia, Q., Kang, C., Chen, T., & Li, Y. (2015). structural transmission cost allocation scheme based on capacity usage identification. IEEE Transactions on Power Systems, 31(4), 2876-2884

## A NOVEL ALGORITHM DESIGN FOR ADAPTIVE BEAMFORMING IN UNIFORM LINEAR ARRAY ANTENNA

#### Authors:

Praneet Raj Jeripotula, C. Anil Kumar, Mudavath Raju, B. Rajendra Naik

#### DOI NO:

https://doi.org/10.26782/jmcms.2020.03.00008

#### Abstract:

Adaptive antenna systems use advanced adaptive signal processing algorithms to generate main beams in the direction of interest and steer the nulls in the desired direction to reduce interferences from incoming signals. These algorithms are implemented in various applications such as channel equalization, object tracking, system identification and also in Radar systems which uses phased array antenna setup. In phased array radar systems, the noise and interference mitigation is a challenging task. The optimization of these algorithms to generate signals at a faster rate, steering nulls in the unwanted directions thereby improving the signal qualityis  very crucial. Few major factors which effect the Adaptive beam forming are complexity, rate of convergence, placing deeper nulls. A novel algorithm is proposed namely Normalized Leaky Variable Step Size-LMS algorithm. The proposed algorithm is applied to a uniform linear array of 8, 12, 16 and 32 elements configurations for different test cases. To demonstrate the efficiency of the proposed algorithm comparison is made with the traditional Least Mean Square, Variable Step Size LMS, and Leaky LMS algorithms. The results show the rate of convergence performance is substantially improved by more than 50% for the proposed algorithm than the existing ones along with providing deeper nulls for interference suppression.

#### Keywords:

Least Mean Square (LMS) algorithm,Variable Step Size LMS algorithm,Leaky LMS algorithm,Null depth,Rate of Convergence,

#### Refference:

I. A. P. Rao and N. V. S. N. Sarma, “Performance analysis of kernel based adaptive beamforming for smart antenna systems,” IEEE MTT-S Int. Microw. RF Conf. 2014, IMaRC 2014 – Collocated with InteractionalSymp. Microwaves, ISM 2014, no. 3, pp. 262–265, 2015.
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V. F. Gross, Smart Antennas for Wireless Communications with MATLAB, Second. McGraw Hill, 2015.
VI. F. Alan J, Adaptive Antennas and Phased Arrays. 2008.
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XI. M. Sowjanya, A. K. Sahoo, and S. Kumar, “Distributed Incremental Leaky LMS,” 2015 Int. Conf. Commun. Signal Process. ICCSP 2015, pp. 1753–1757, 2015.
XII. M. Kamenetsky and B. Widrow, “A variable leaky LMS adaptive algorithm,” vol. 1, no. 650, pp. 125–128, 2005.
XIII. N. H. Noordin, T. Arslan, B. Flynn, and A. T. Erdogan, “Adaptive Beamforming Algorithms for 3-faceted Array Antenna,” 2014.
XIV. N. H. Noordin and Z. Khalidin, “Beamforming algorithms for adaptive array antenna,” 2014 2nd Int. Conf. Electron. Des. ICED 2014, pp. 5–9, 2011.
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XVI. P. Thapa, M. A. Jeong, and S. R. Lee, “Performance analysis of LMS adaptive beam forming algorithms for smart antennas,” Inf., vol. 18, no. 10, pp. 4175–4181, 2015.
XVII. P. R. Jeripotula, C. A. Kumar, and B. R. Naik, “Modified Leaky LMS Algorithm for Adaptive Beamforming,” Int. J. Eng. Appl. Manag. Sci. Paradig., vol. 54, no. 3, pp. 212–218, 2019.
XVIII. R. Irfan, H. urRasheed, W. A. Toor, and M. Ashraf, “Performance analysis of adaptive algorithms for space-time adaptive processor (STAP) in phased array radar,” J. Eng., vol. 2019, no. Irc 2018, pp. 6313–6317, 2019.
XIX. R. M. Shubair and A. Hakam, “Adaptive beamforming using variable step-size LMS algorithm with novel ULA array configuration,” Int. Conf. Commun. Technol. Proceedings, ICCT, pp. 650–654, 2013.
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## IMPROVING SERVICE QUALITY IN VEHICULAR AD HOC NETWORKUSING CUCKOO’S MULTI-OBJECTIVE OPTIMIZATION ALGORITHM

#### Authors:

Abbas Karimi, Iraj Rezaei, Faraneh Zar Afshan

#### DOI NO:

https://doi.org/10.26782/jmcms.2020.03.00009

#### Abstract:

The vehicular ad hoc network (VANET), as a subset of the Mobile Case Network (MANET), provides the necessary platform for communication between vehicles and roadside equipment. One of the most important applications of the VANET network is to provide the necessary security for the passengers of vehicles and to improve the efficiency of resources in order to optimize the traffic flow. Therefore, providing quality of service (QoS) in this network will play an important role in the accuracy of intelligent transport system operation. In this paper, a new solution to improve the quality of service in VANET networks is presented. In the proposed method, the Cuckoo's search multi-objective optimization algorithm (MOCS) is used to optimize MAC layer parameters. In this method, the criteria of throughput, latency, and packet loss are considered as optimization objectives. The evaluation results of the proposed method show a 68% reduction in the time required to discover the optimal system parameters compared to the exhaustive search algorithm.

#### Keywords:

Ehicular Ad Hoc Network,Service Quality,Multi-Objective Optimization,Cuckoo Search,

#### Refference:

I. Alam, S., Sulistyo, S., Mustika, I. W., & Adrian, R. (2019, October). Review of Potential Methods for Handover Decision in V2V VANET. In 2019 International Conference on Computer Science, Information Technology, and Electrical Engineering (ICOMITEE) (pp. 237-243). IEEE.
II. Almohammedi, A. A., Noordin, N. K., Sali, A., Hashim, F., Jabbar, W. A., &Saeed, S. (2019). Modeling and analysis of IEEE 1609.4 MAC in the presence of error-prone channels. International Journal of Electrical and Computer Engineering (IJECE), 9(5), 3531-3541.
III. Brendha, R., &Prakash, V. S. J. (2017, January). A survey on routing protocols for vehicular Ad Hoc networks. In 2017 4th International Conference on Advanced Computing and Communication Systems (ICACCS) (pp. 1-7). IEEE.
IV. Hande, R. S., &Muddana, A. (2016, October). Comprehensive survey on clustering-based efficient data dissemination algorithms for VANET. In 2016 International Conference on Signal Processing, Communication, Power and Embedded System (SCOPES) (pp. 629-632). IEEE.
V. Khan, U. A., & Lee, S. S. (2019). Multi-layer problems and solutions in vanets: A review. Electronics, 8(2), 204.
VI. Lim, J. M. Y., Chang, Y. C., Loo, J., & Alias, M. Y. (2015). Improving VANET performance with heuristic and adaptive fuzzy logic scheme. Wireless Personal Communications, 83(3), 1779-1800.
VII. Ramanathan, R. (2018). An Empirical study on MAC layer in IEEE 802.11 p/WAVE based Vehicular Ad hoc Networks. Procedia computer science, 143, 720-727.
VIII. Rawat, D. B., Popescu, D. C., Yan, G., &Olariu, S. (2011). Enhancing VANET performance by joint adaptation of transmission power and contention window size. IEEE Transactions on Parallel and Distributed Systems, 22(9), 1528-1535.
IX. Shankar, K., Ilayaraja, M., Kumar, K. S., &Perumal, E. (2020). Mobility and QoS analysis in VANET using NMP with SALP optimization models. In Emerging Technologies for Connected Internet of Vehicles and Intelligent Transportation System Networks (pp. 15-26). Springer, Cham.
X. Uttarwar, V., Choudhari, E., Deshpande, P., &Chaudhary, P. (2019). A Survey To Improve Quality Of Service For Mobile Ad Hoc Networks. International Journal of Scientific Research And Education, 6(8).
XI. Wahid, I., Ikram, A. A., Ahmad, M., Ali, S., & Ali, A. (2018). State of the art routing protocols in VANETs: A review. Procedia computer science, 130, 689-694.

## ARTIFICIAL INTELLIGENCE TECHNIQUES-BASED LOW VOLTAGE RIDE THROUGH ENHANCEMENT OF DOUBLY FED INDUCTION WIND GENERATOR

#### Authors:

Maheswari Muthusamy, A.K. Parvathy

#### DOI NO:

https://doi.org/10.26782/jmcms.2020.03.00010

#### Abstract:

Wind energy is increasingly used as renewable energy worldwide. According to grid codes, wind turbines (WT) should essentially be coupled to grid throughout as well as following fault and source reactive power toward the grid with an objective of maintaining grid voltage. Doubly fed induction generator (DFIG), a wind turbine type enabling speed adjustment, is getting established currently in wind industry. Many DFIGs employ crowbar-based system to shelter the converter at the rotor side during disturbed and/or distorted grid voltage circumstances. Although it helps in protecting the generator, it does not warrant an appropriate grid support. This shortcoming led to designing anew coordinated controller that excludes or even cancels the need of a crowbar. This paper proposes fault confrontation controller (FCC) design to augment the feature -of low voltage ride through (LVRT) in this turbine. Considering the system’s nonlinear nature, an attractive FCC was constructed using computational intelligence (CI) techniques, namely fuzzy logic, back propagation network (BPN) and adaptive neuron fuzzy inference system (ANFIS).The simulation study demonstrates that the ANFIS system gives the best results for the proposed system.

#### Keywords:

Doubly Fed Induction Generator,LVRT,ANFIS,Computational Intelligence,

#### Refference:

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VII. Hu S, LinX,KangY,ZouX.An improved low-voltage ride through control strategy of doubly fed induction generator during grid faults. IEEE Trans Power Electron 2011;26(12):3653–65.

VIII. Jadhav HT, Roy R. A comprehensive review on the grid integration of doubly fed induction generator, Electr Power Energy Syst 2013:49:8-18.

IX. J. Yang, John E. Fletcher, and J. O’Reilly “A Series-Dynamic-Resistor-Based Converter Protection Scheme for Doubly-Fed Induction Generator During Various Fault Conditions” IEEE Trans. Energy. Conv, vol. 25, NO. 2, June 2010.
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