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Manivannan, S.
- Study and Analysis of Three Phase Voltage Source Inverter Fed Induction Motor Drive in Various Pulse Width Modulation Techniques
Abstract Views :96 |
PDF Views:0
Authors
Affiliations
1 Department of Electrical and Electronics Engineering, Bannari Amman Institute of Technology, Erode, Tamilnadu, IN
1 Department of Electrical and Electronics Engineering, Bannari Amman Institute of Technology, Erode, Tamilnadu, IN
Source
International Journal of Scientific Engineering and Technology, Vol 3, No 8 (2014), Pagination: 1111-1114Abstract
The Three Phase Voltage Source Inverter supplies invariably required variable voltage and frequency of the adjustable speed drive system. A number of pulse width modulation (PWM) schemes are used to obtain variable voltage and frequency supply from an inverter. The most widely used PWM scheme for a Three Phase Voltage Source Inverter is carrier based sinusoidal PWM and Space Vector Pulse Width Modulation (SVPWM). There is an increasing trend of using SVPWM, because of their easier digital realization and better DC bus utilization. The study of SVPWM technique reveals that this technique utilizes DC bus voltage more efficiently and generates less harmonic distortion when compared with sinusoidal PWM techniques. The SVPWM technique has become one of the important PWM technique for Three Phase Voltage Source Inverter for the control of AC induction motor, Brushless DC motor, Switched Reluctance motor and Permanent Magnet Synchronous motor. In this paper having collection of different schemes in SVPWM. Specifically various schemes are Center aligned two level SVPWM, Level shifted multi-carrier concepts based SVPWM, and Third order harmonic injection based modulated reference waveform generation and comparison in SVPWM. This paper having simulation results of all the three schemes of SVPWM by using MATLAB/SIMULINK software. The performance of Three Phase Voltage Source Inverter fed induction motor drive based on various SVPWM schemes are analyzed by various reference parameters like DC bus utilization, Total harmonic distortion (THD), switching stress and efficiency. As a result of these analysis this paper recommends which scheme is more suitable for variable voltage and various frequency drives. The simulation results are provided to validate the proposed model approaches.Keywords
Three Phase Voltage Source Inverter, Space Vector Pulse Width Modulation (SVPWM), Modulated Reference Waveform, Center Aligned, Third Harmonic Injection, Total Harmonic Distortion (THD), and Switching Stress.Full Text
- Prediction of Shielding Effectiveness of Cables used for Automobile Sector: Technical Note
Abstract Views :541 |
PDF Views:155
Authors
Affiliations
1 Dept. of EEE, Dr. M. G. R Educational and Research Institute, IN
2 Centre for Electromagnetics - SAMEER, IN
1 Dept. of EEE, Dr. M. G. R Educational and Research Institute, IN
2 Centre for Electromagnetics - SAMEER, IN
Source
International Journal of Vehicle Structures and Systems, Vol 11, No 1 (2019), Pagination: 33-35Abstract
The automotive industry is gearing for a drastic shift towards the electric vehicles and also leaping for the autonomous vehicles. The functional performance of such autonomous vehicles must be properly ensured. One such kind of disturbance to the proper functioning of the vehicle is Electromagnetic Interference due to presence of various electrical systems. The operating frequency range is increasing due to latest advancement in automobile industry. The future working frequency is going to be 74GHz which falls under extremely high frequency range. So it is inevitable to analyse the electromagnetic interference and emission caused by such futuristic models. The electromagnetic field effect is dependent on the shielding effectiveness. The Electromagnetic Shielding Effectiveness (EMSE) varies with numerous parameters like the type of material, shape of material, size of material etc. The work deals with the modelling of cable and study on shielding effectiveness of the cables used in automotive. The same has to be evaluated with standards test procedures and validated.Keywords
Electromagnetic Interference, Shielding Effectiveness, Automotive, Cables.Full Text
References
- A. Das and V.K. Kothari. 2009. Effect of various parameters on electromagnetic shielding effectiveness of textile fabrics, Indian J. Fibre and Textile Research, 34, 144-148.
- IEEE Standard Method for Measuring the Effectiveness of Electromagnetic Shielding Enclosures. 2006. EMC Society, New York, 39.
- F. Paulis, M.H. Nisanci, A. Orlandi, M.Y. Koledintseve and J.L. Drewniak. 2014. Design of homogeneous and composite materials from shielding effectiveness specifications, IEEE Trans. Electromagnetic Compatibility, 56(2), 343-351. https://doi.org/10.1109/TEMC.2013.2280463.
- Possible effects of Electromagnetic Fields (EMF) on Human Health. 2007. Scientific Committee on Emerging and Newly Identified Health Risks.
- H.W. Ott. 2009. Electromagnetic Compatibility Engg., John Wiley & Sons. https://doi.org/10.-1002/9780470508510.
- T. Nishimura, T. Nakamura, L. Quan, N. Amemiya, and Y. Itoh. 2014. Potential for torque density maximization of HTS induction/synchronous motor by use of superconducting reluctance torque, IEEE Trans. Applied Superconductivity, 24(3), 1-4. https://doi.org/10.1109/TASC.2013.2283238.
- S. Bhuvaneswari and S. Manivannan. 2015. Shielding effectiveness of enclosures - A Review, Int. J. Applied Engg. Research, 10(68), 428-430.
- Warranty Cost Estimation using K-Means Cluster Analysis for Automobile Industry:Technical Note
Abstract Views :507 |
PDF Views:167
Authors
Affiliations
1 Mech. Engg. Dept., Dr. M.G.R Educational and Research Institute, Tamil Nadu, IN
2 Dept. of Computer Sci. and Engg., SRM University, Tamil Nadu, IN
3 Mech. Engg. Dept., Dr. M.G.R Educational and Research Institute, Tamilnadu, IN
1 Mech. Engg. Dept., Dr. M.G.R Educational and Research Institute, Tamil Nadu, IN
2 Dept. of Computer Sci. and Engg., SRM University, Tamil Nadu, IN
3 Mech. Engg. Dept., Dr. M.G.R Educational and Research Institute, Tamilnadu, IN
Source
International Journal of Vehicle Structures and Systems, Vol 11, No 1 (2019), Pagination: 36-38Abstract
When a vehicle under warranty comes for service, the technician identifies the potential fault and the corresponding service is done. From the raw information of customer complaint, the complaint codes are identified and allocation of qualified technician involves considerable man hours and cost per hour for the technician to do the service. Around 1059 vehicles under warranty were studied starting from customer complaint to the study of warranty cost to the manufacturer. In this paper, initially, we present the results of classifying the complaint code master into several classes using K-means cluster analysis and subsequently cluster analysis for a specific component say, water pump assembly was carried out. Then, analysis of cost to the automobile manufacturer on warranty claims are also presented here.Keywords
Automobile, Cluster, Warranty, Estimation, Cost Analysis.Full Text
References
- J.A. Mueller and F. Lemke. 2009. Self-organising data mining: An intelligent approach to extract knowledge from data, Script Software Int., Berlin, 62-71.
- S.P. Singh, S.S.P. Shukla, N. Rakesh and V. Tyagi. 2011. Problem reduction in online payment system using hybrid model, Int. J. Managing Information Tech., 3(3), 62-70.
- R. Patidar and L. Sharma. 2011. Credit card fraud detection using neural network, Int. J. Soft Computing and Engg., 1, 32-38.
- M.R. Karim and K. Suzuki. 2005. Analysis of warranty claim data: A literature review, Int. J. Quality and Reliability Management, 22(7), 667-686. https://doi.org/10.1108/02656710510610820
- S. Wu. 2012. Warranty data analysis: A review, Quality and Reliability Engg., 28(8), 795-805. https://doi.org/10.1002/qre.1282
- J.D. Kalbfleisch and J.F. Lawless. 1996. Statistical Analysis of Warranty Claims Data, Product Warranty Handbook, New York, 231-259.
- Warranty Cost Analysis. 2006. Warranty management and product manufacture, Springer Series in Reliability Engg., Springer, London, 2006.
- R. Srinivasan, S. Manivannan and S.P. Devi. 2015. A critical review paper on warranty analysis for fleet industry using data mining techniques, Int. J. Applied Engg. Research, 10(55), 1132-1134.
- R. Srinivasan, S. Manivannan, N. Ethiraj, S.P. Devi and S.V. Kiran. 2016. Modelling an optimized warranty analysis methodology for fleet industry using data mining clustering methodologies with fraud detection mechanism using pattern recognition on hybrid analytic approach, Proc. Computer Science, 87, 322-327. https://doi.org/10.1016/j.procs.2016.06.001.
- Fertility Activity of Wedelia trilobata Linn. Leaf Extracts on Female Wister Albino Rats
Abstract Views :356 |
PDF Views:257
Authors
Affiliations
1 PG and Research Department of Biotechnology, Bharath College of Science and Management, Thanjavur (Affiliated to Bharathidasan University, Tiruchirappalli), Tamil Nadu, IN
2 Department of Zoology, Kongunadu Arts and Science College, Coimbatore, Tamil Nadu, IN
1 PG and Research Department of Biotechnology, Bharath College of Science and Management, Thanjavur (Affiliated to Bharathidasan University, Tiruchirappalli), Tamil Nadu, IN
2 Department of Zoology, Kongunadu Arts and Science College, Coimbatore, Tamil Nadu, IN
Source
Journal of Natural Remedies, Vol 21, No 4 (2021), Pagination: 323-332Abstract
Wedelia trilobata Linn., Asteraceae, is a creeping evergreen perennial herb. It is native to the tropics of Central America and has naturalized in many wet tropical and subtropics areas of the world. It is widely used in traditional medicine for the treatment of contraceptives, rheumatoid arthritis, diabetes, infertility and impotence. The present study evaluated the potential fertility effect of aqueous and ethanolic extract of leaves of Wedelia trilobata Linn. Anti-oxidant activity of the leaves was determined and the antimicrobial activity was performed for the urinary bacteria of females. In animal experiment, Group 1 served as negative control given only olive oil, Group 2 and 3 were given with 200 mg/kg and 400 mg/ kg of Aqueous extract of W. trilobata, Group 4 and 5 – 3 was given with 200 mg/kg and 400 mg/kg of ethanolic extract of W. trilobata, Group 6 and 7 were given 1mg/kg and 2 mg/ kg of drug. The results revealed the promising anti-oxidant and anti-microbial activity and the aqueous treated rats shown similar activity compared to the control rat. The contraceptive nature of the rats was determined through the hormonal reports.Keywords
Anti-Microbial, Anti-Oxidant, Fertility Activity, Wedelia trilobata Linn, Wister Albino Rats.Full Text
References
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