i-manager Publications

i-manager's Journal on Digital Signal Processing (JDP)

Current Issue Vol. 12 Issue 1

Most Cited

Volume 1 Issue 1 January - March 2013

Research Paper

Fault Diagnosis In Multilevel Inverter Drive Fed Induction Motor Using Wavelet Transforms

V. Vinothkumar* , C. Muniraj**

* Department of Electrical and Electronics Engineering, K.S. Rangasamy College of Technology, Thiruchengode, India.

** Department of Electrical and Electronics Engineering, K.S.Rangasamy College of Technology, Thiruchengode, India.

Kumar,V.V., and Muniraj.C. (2013). Fault Diagnosis In Multilevel Inverter Drive Fed Induction Motor Using Wavelet Transforms. i-manager’s Journal on Digital Signal Processing, 1(1), 1-7 https://doi.org/10.26634/jdp.1.1.2198

Abstract

Induction motors are becoming the most widely used motors in the industrial environments. Industry has begun to use higher power ratings, and multilevel inverter drives have become a solution for high-power applications in recent years. A multilevel inverter not only achieves high-power ratings but also enables the use of renewable energy sources. Renewable energy sources such as photovoltaic, wind, and fuel cells can be easily interfaced to a multilevel converter system for a high power application. There are many faults occurring in the multi-level inverter, in which if the type of fault and the location of the fault are known then it will be easier to clear the faults. Therefore in the proposed work a fault diagnosis method is been implemented using the discrete wavelet transform method. In this proposed work to diagnose the faults in the multi-level inverter, the output current and voltage signals of the multi-level inverter is analyzed simultaneously in both the time and frequency domains by using the discrete wavelet transforms. The discrete signal of the stator current is decomposed up to the eighth level of resolution of the discrete wavelet transforms using selected mother wavelet. The eight level of frequency band values is useful in analyzing the signals in both time and frequency domains. The simulation of this circuit is implemented by using the MATLAB software.

References

[1].Ansari A A, Deshpande D. M., (2010). “Mathematical Model of Asynchronous Machine in MATLAB Simulink” International Journal of Engineering Science and Technology , Vol. 2(5), PP.1260-1267.

[2]. Aravindh Kumar. B, (2010). “Fault detection in Induction Motor using WPT and Multiple SVM” International Journal of Control and Automation, Vol. 3, No. 2 PP.9-20.

[3].Ashish R. Patel, Burak Özpineci (2011). “Simulation for A 3-Phase Induction Motor Under unbalanced Conditions” Proceedings of National Conference on Recent Trends in Engineering & Technology, B.V.M. Engineering College, V.V. Nagar, Gujarat, India, PP.122-127.

[4].Abdesh Shafiel Kafiey Khan M (2010). “Wavelet Based Diagnosis and Protection of Electric Motors” IEEE Transactions on Industrial Electronics, Vol. 57, No.3 PP.266-272.

[5].Farid Khoucha, Soumia Mouna Lagoun, Khoudir Marouani, Abdelaziz Kheloui (2010). “Hybrid Cascaded H-Bridge Multilevel-Inverter Induction-Motor-Drive Direct Torque Control for Automotive Applications” IEEE Transactions on Industrial Electronics, Vol. 57, No. 3 PP.892-899.

[6].Khalaf Salloum Gaeid and Hew Wooi Ping (2011). “Wavelet Fault Diagnosis and Tolerant of Induction Motor” International Journal of the Physical Sciences, Vol. 6(3), PP. 358-376.

[7].Murugesan. G (2009). “A New Multilevel Inverter Topology Using Less Number of Switches” International Journal of Engineering Science and Technology (IJEST), Vol. 3 No. 2, PP.1500-1510.

[8].Neelam Mehala (2011). “Current Signature Analysis for Condition Monitoring of Motors” International Journal of Electronics and Computer Science Engineering, Vol 1, No.3, PP.1629-1633.

[9].Saleh S.A., and Azizur Rahman M, (2009). “Analysis and Real-Time Testing of a controlled Single-Phase Wavelet-Modulated Inverter for Capacitor-Run Induction Motors” IEEE Transactions on Energy Conversion, Vol. 24, No. 1 PP.21-29.

[10]. Surin Khomfoi and Leon M. Tolbert, (2007). “Fault Diagnostic System for a Multilevel Inverter Using a Neural Network” IEEE Transactions on Power Electronics, Vol. 22, No.3 PP.1062-1069.

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Research Paper

Studies on Triangular Reference with Carrier Overlapping Pulse Width ModulationMethods for Diode Clamped Five Level Inverter

S.Sumathi* , D.Meena, C. R. Balamurugan*, S. P. Natarajan****

* PG Student, Department of EEE, Arunai Engineering College, Tiruvannamalai, Tamilnadu, India.

-* Department of EEE, Arunai Engineering College, Tiruvannamalai, Tamilnadu, India.

**** Department of EEE, Annamalai University, Chidambaram, Tamilnadu, India.

Sumathi.S.,Meena.D., Balamurugan.C.R., and Natarajan.S.P. (2013). Studies On Triangular Reference With Carrier Overlapping Pulse Width Modulation Methods For Diode Clamped Five Level Inverter. i-manager’s Journal on Digital Signal Processing, 1(1), 8-17 https://doi.org/10.26634/jdp.1.1.2199

Abstract

This paper presents the comparison of Variable Amplitude Pulse Width Modulation COPWM techniques for the three phase Diode Clamped Multi Level Inverter (DCMLI). A three phase DCMLI is controlled in this paper with Triangular PWM (TPWM) reference for Carrier Overlapping (CO) techniques. The variation of Total Harmonic Distortion (THD) in the inverter output voltage is observed for various modulation indices. Simulation is performed using MATLAB-SIMULINK. By comparing the various carriers overlapping technique such as COPWM-A, COPWM-B, COPWM-C and COPWM-D, it is observed that COPWM-C provide an output with relatively low distortion and COPWM-A and COPWM-D provides relatively higher fundamental RMS output voltage. By comparing the various variable amplitude carriers overlapping technique such as VACOPWM-A, VACOPWM-B, VACOPWM-C and VACOPWM-D, it is observed that VACOPWM-C provide a output with relatively low distortion and VACOPWM-D provides relatively higher fundamental RMS output voltage. Finally by comparison between the various COPWM and variable amplitude carrier overlapping technique, it is observed that VACOPWM-C provide an output with relatively low distortion and VACOPWM-D provides relatively higher fundamental RMS output voltage.

References

[1]. Hosseini Aghdam, M. G., Fathi, S. H & Gharehpetian G. B.(2008). “Analysis of Multi-Carrier PWM Methods for Asymmetric Multi-Level Inverter”, 978-1-4244-1718-6/08 2008 IEEE, pp: 2057-2062.

[2]. Shanthi, B & Natarajan, S.P.(2008). “Carrier Overlapping PWM Methods for Single Phase Cascaded Five Level Limter”, International Journal of Sciences and Techniques of Automatic Control and Computer Engineering IJ-STA, Special Issue,2008, pp: 590-601.

[3].Ramkumar, S, Thamizharasan, S & Kamaraj, V.(2009). “A Novel Variable Amplitude Carrier Band (VACB) Control Strategy for Single Phase Cascaded Sources Inverter”, 978-1-4244-3557-9/09/2009, pp: 373-376.

[4].Hirak Patangia & Dennis Gregory.(2009). “A Class of Optimal Multilevel Inverters Based on Sectionalized PWM (S-PWM) Modulation Strategy”, 978-1-4244-4480-9/09/2009 IEEE, pp: 937-940.

[5].Palanivel, P & Subhransu Sekhar Dash.(2009). “Multicarrier Pulse Width Modulation Methods Based Three Phase Cascaded Multilevel Inverter Including Over Modulation and Low Modulation Indices”, 978-1-4244-4547-9/09/2009, IEEE, pp: 1-6.

[6].Zhiguo Pan & Fang Zheng Peng.(2009). “A Sinusoidal PWM Method With Voltage Balancing Capability for Diode-Clamped Five-Level Converters”, IEEE Transations on Industry Application, Volume 45, No. 3, 2009, pp: 1028-1034.

[7].Konstantinou Georgios, S.& Agelidis, Vassilios G.(2009). “Performance Evaluation of Half-Bridge Cascaded Multilevel Converters Operated with Multicarrier Sinusoidal PWM Techniques”,978-1-4244-2800-7/09/2009, IEEE, pp: 3399-3404.

[8].Makoto Hagiwara, Kazutoshi Nishimura & Hirofumi Akagi. (2009). “A Modular Multilevel PWM Inverter for Medium-Voltage Motor Drives”, 978-1-4244-2893-9/09/2009, IEEE, pp: 2557-2564.

[9].Bambang Sujanarko, Mochamad Ashari, Mauridhi Hery Purnomo, Ontoseno Penangsang & Soebagjo. (2010). “Advanced Carrier Based Pulse Width Modulation in Asymmetric Cascaded Multilevel Inverter”, 108606-5353 IJECS-IJENS 2010, pp: 47-51.

[10]. Sedghi, S, Dastfan, A & Ahmadyfar, A. (2011). “A New Multilevel Carrier Based Pulse Width Modulation Method For modular Multilevel Inverter”, International Conference on Power Electronics - ECCE Asia 2011, pp: 1432-1439.

[11]. Seyezhai, R.(2011). “Carrier Overlapping PWM Methods for Asymmetrical Multilevel Inverter”, ISSN: 0975-5462, Volume 3 No. 8 2011, pp: 6630-6639.

[12]. Sambath, E, Natarajan, S.P. & Balamurugan, C.R.(2012). “Performance Evaluation of Multi Carrier Based PWM Techniques for Single Phase Five Level H-Bridge Type FCMLI”, ISSN: 2250-3021, Volume 2, Issue 7, 2012, pp: 82-90.

[13]. Johnson Uthayakumar R., Natarajan S.P. & Bensraj R. (2012). “A Carrier Overlapping PWM Technique for Seven Level Asymmetrical Multilevel Inverter with various References”, IOSR Journal of Engineering, June. 2012, Volume 2(6), pp: 1301-1307.

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Research Paper

Comparison of Various Variable AmplitudeCarrier Overlapping PWM Methods for Three Phase Five Level Cascaded Inverter

R. Revathy* , C. R. Balamurugan, S. P. Natarajan*

* PG Student, Department of EEE, Arunai Engineering College, Tiruvannamalai, Tamilnadu, India.

Department of EEE, Arunai Engineering College, Tiruvannamalai, Tamilnadu, India.

* Department of EEE, Annamalai University, Chidambaram, Tamilnadu, India.

Revathy.R.,Balamurugan.C.R., and Natarajan.S.P. (2013). Comparison Of Various Variable Amplitude Carrier Overlapping PWM Methods For Three Phase Five Level Cascaded Inverter. i-manager’s Journal on Digital Signal Processing, 1(1), 18-28 https://doi.org/10.26634/jdp.1.1.2200

Abstract

This paper presents the comparison of various Carrier Overlapping Pulse Width Modulation (COPWM) Strategies for the three phase Cascaded Multi Level Inverter (CMLI). Various new schemes adopting the constant switching frequency and also variable switching frequency multicarrier control freedom degree combination concepts are developed and simulated for the chosen three phase CMLI. A three phase CMLI is controlled in this paper with Sinusoidal PWM (SPWM) reference along with Carrier Overlapping (CO) techniques and simulation is performed using MATLAB-SIMULINK. The variation of fundamental RMS output voltage and total harmonic distortion is observed for various carrier overlapping techniques. Among the various equal amplitude carrier overlapping techniques such as COPDPWM, COPODPWM, COAPODPWM, COVFPWM and COPWM-D, it is observed that COAPOD provides less total harmonic distortion (THD) and COPWM-D provides higher RMS voltage. Among the various variable amplitude carrier overlapping techniques, such as VACOPDPWM, VACOPODPWM, VACOAPODPWM, VACOVFPWM and VACOPWM-D, it is recognised that VACOAPOD provides less THD and VACOPOD provides higher RMS voltage. By comparing the equal amplitude carrier overlapping techniques with the variable amplitude carrier overlapping techniques, it is observed that VACOVFPWM provides higher fundamental RMS output voltage with relatively low distortion.

References

[1].Jose Rodríguez, Jih-Sheng Lai & Fang Zheng Peng, (2002). “Multilevel Inverters: A Survey of Topologies, Controls, and Applications”, IEEE Transactions On Industrial Electronics, Vol. 49, No. 4, Aug.2002, pp.724-738.

[2].Corzine, K.A., Wielebski, M.W., Peng, F.Z., & Wang, J. (2003). “Control of Cascaded Multi-Level Inverters”, IEEE Conf. 0-7803-7817-2/03/2003,pp.1549-1555.

[3].Pandey, A., Singh, B., Singh, B N., Chandra, A., Al-Haddad, K.,& Kothari, D P. (2003). “A Review of Multilevel Power Converters”, IE (I) Journal- EL, Aug 2003,pp.220-231.

[4].Yan Deng, Hongyan Wang, Chao Zhang, Lei Hu & Xiangning He, (2005). “Multilevel PWM Methods based on Control Degrees of Freedom Combination and Its Theoretical Analysis”, IEEE Conf. 0-7803-9208-6/2005, pp.1692-1698.

[5].Santhi, B., & Natarajan, S.P. (2008). “Carrier Overlapping PWM methods for Single Phase Cascaded five level Inverter”, International Journal of Science and Techniques of Automatic Control and Computer Engineering, IJ-STA, Special Issue, CEM, pp.590-601, December 2008.

[6].Sung Geun Song, Feel Soon Kang & Sung-Jun Park, (2009). “Cascaded Multilevel Inverter Employing Three-Phase Transformers and Single DC Input”, IEEE Transactions On Industrial Electronics, Vol. 56, No. 6, June 2009,pp.2005-2014.

[7].Liang Zhou & Keyue Smedley, (2009). “Reliability comparison of multi-level inverters for motor drive”, IEEE Conf. 978-1-4244-4241-6/09/2009, pp.1-7.

[8].Hirak Patangia & Dennis Gregory, (2009). “A Class of Optimal Multilevel Inverters Based on Sectionalized, PWM (S-PWM) Modulation Strategy”, IEEE Conf. 978-1-4244-4480-9/09/2009,pp.937-940.

[9].Wang Chenchen & Li Yondong, (2009). “A Survey on Topologies of Multilevel Converters and Study of Two Novel Topologies”, IEEE Conf. 978-1-4244-3557-9/09/2009, pp.860-865.

[10]. Konstantinou, Georgios S. & Agelidis, Vassilios G. (2009). “Performance Evaluation of Half-Bridge Cascaded Multilevel Converters Operated with Multicarrier Sinusoidal PWM Techniques”, IEEE Conf. 978-1-4244-2800-7/09/ 2009,pp.3399-3404.

[11]. Balamurugan, C. R., Natarajan, S. P., & Bensraj, R. (2012). “Comparative Study on Carrier Overlapping PWM Strategies for Three Phase Five Level Cascaded Inverter,” International Journal of Computer Applications, (0975 – 888),Vol. 48, No.6, pp.20-28, 2012.

[12]. Sambath, E., Natarajan, S.P., & Balamurugan, C.R. (2012). “Performance Evaluation of Single Phase H-Bridge Type Diode Clamped Five Level Inverter”, International Journal of Modern Engineering Research, Vol.2, Issue 4, pp.1908-1913, 2012.

[13] lessandro Luiz Batschauer, Samir Ahmad Mussa, & Marcelo Lobo Heldwein, (2012). “Three-Phase Hybrid Multilevel Inverter Based on Half-Bridge Modules”, IEEE Transactions on Industrial Electronics, Vol. 59, No.2, Feb. 2012,pp.668-678.

[14]. Roshankumar, P., Rajeevan, P. P., Mathew, K., Gopakumar, K., Leon, Jose I. & Franquelo, Leopoldo G. (2012). “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, Aug.2012,pp.3505-35.

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Research Paper

Fuzzy Flatness Based Control Of Three Phase Inverter Fed Induction Motor

Sasikumar C* , C. Muniraj**

* Second Year M.E. Power Electronics and Drives, Deportment of Electrical and Electronics Engineering, K S Rangasamy College of Technology (Autonomous), Tiruchengode, India.

** Assistant Professor, Department of Electrical and Electronics Engineering, K S Rangasamy College of Technology (Autonomous), Tiruchengode, India.

Sasikumar.C., and Muniraj.C., (2013). Fuzzy Flatness Based Control Of Three Phase Inverter Fed Induction Motor. i-manager’s Journal on Digital Signal Processing, 1(1), 29-36 https://doi.org/10.26634/jdp.1.1.2201

Abstract

Induction motor plays a vital role in engineering and industry. Induction motor offer a convenient means for controlling the operation of different equipment used in industry. Induction motor input supply will give from the voltage source inverter for its speed control purpose. If we connect induction motor directly to the AC supply its speed control will not applicable, so that we go inverter fed induction motor speed control. Vector control can controls the independent control of flux and torque in the induction motor. By adjusting gate pulse through vector control for vary speed of induction motor. fuzzy flatness based control is applied in the speed controller of induction motor. This method gives better efficiency of induction motor speed control. Fuzzy flatness controller method for induction motor gives better performance and reduces tracking error and reduces the torque ripple.

References

[1].Arulmozhiyal, and Dr. Baskaran K (2009). “Speed Control of Induction Motor using Fuzzy PI and Optimized using GA” International Journal of Recent Trends in Engineering, Vol.2, No.5, pp.43-47.

[2].Azeddine Houari, Hugues Renaudineau, Jean-Philippe Martin, Serge Pierfederici, and Farid Meibody-Tabar (2012). “Flatness-Based Control of Three-Phase Inverter with Output LC Filter” IEEE Transactions on Industrial Electronics, Vol.59, No.7, pp.2890-2897.

[3].Chao-Lung Chianga, Ching-Tzong (2005). “Tracking Control of Induction Motor Using Fuzzy Phase Plane Controller with Improved Genetic Algorithm” Department of Electrical Engineering, Elsevier, Journal on Power System Engineering Research, Vol.73, No.5, pp. 239-247.

[4].Durgasukumar, M.K. Pathak (2010). “Torque Ripple Reduction in VSI Fed Induction Motor Drive Using Low Switching Frequency”, International Journal of Engineering Science and Technology, Vol. 2, No.10, pp.6113-6119.

[5].Durval de Almeida Souza, Wilson C. P. de Aragão Filho, and Gilberto Costa Drumond Sousa(2007). “Adaptive Fuzzy Controller for Efficiency Optimization of Induction Motors”, IEEE Transactions on Industrial Electronics, Vol. 54, No. 4, pp.2157-2164.

[6].Francesco Cupertino, Annamaria Lattanzi, and Luigi Salvatore (2000). “A New Fuzzy Logic-Based Controller Design Method for DC and AC Impressed-Voltage Drives”, IEEE Transactions on Power Electronics, Vol. 15, No. 6, pp.974-982.

[7].Jaime Fonseca, Joao L. Afonso, Julio S. Martins, Carlos Couto (1999). “Fuzzy Logic Speed Control of an Induction Motor” Elsevier, Vol 27, No.2, pp. 523-534.

[8].Tripura.P and Y.Srinivasa Kishore Babu (2011). “Fuzzy Logic Speed Control of Three Phase Induction Motor Drive” World Academy of Science, Engineering and Technology, Vol.60, No.3, pp.1371-1375.

[9].Praveen Kumar, D.Sunitha (2012). “Speed Control of Induction Motor using PID and Fuzzy Controller” Proceedings of International Conference on Computing and Control Engineering (ICCCE 2012), Coimbatore Institute of Information Technology, Coimbatore, pp.371-375.

[10]. Singh , V. Pant, Y.P. Singh (2003). “Voltage Source Inverter Driven Multi-phase Induction Machine” science direct, Vol.29, No.4, pp.813-834.

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Research Paper

Closed-Loop Approach For Reducing Total Harmonic Distortion In A Flying Capacitor Multilevel Inverter

S. Shanmuga Priyan* , K. Ramani**

* PG Scholar, Power Electronics and Drives, EEE, K.S. Rangasamy College of Technology, Tiruchengode, Tamilnadu, India.

** Professor, EEE, K.S. Rangasamy College of Technology, Tiruchengode, Tamilnadu, India.

Priyan,S.S., and Ramani.K. (2013). A Closed-Loop Approach For Reducing Total Harmonic Distortion In A Flying Capacitor Multilevel Inverter . i-manager’s Journal on Digital Signal Processing, 1(1), 37-46 https://doi.org/10.26634/jdp.1.1.2202

Abstract

This paper concentrates on the closed loop control scheme, focusing on the reduction of total harmonic distortion (THD) in a proposed seven level flying capacitor multilevel inverter (FCMLI). Among the various multilevel inverter (MLI) topologies, FCMLI provides more advantages. The development of closed loop model for seven level FCMLI dramatically reduces the low-order harmonics and THD. Extensive simulation has been applied to compare the performance of the proposed system in closed loop control scheme with that of the open loop control scheme. In order to justify the merits of the proposed system, it is interfaced with the single phase lamp load and analysed through simulation investigations.

References

[1].V. Prashant, Thakre and Saroj. Rangnekar (2011). “Simulation and Hardware Implementation of MPPT Based Single Phase Photovoltaic Inverter Using TMS320C28027 Control”, International Journal of Computer and Electrical Engineering, Vol. 3, No. 4, pp. 592-596.

[2].J.M.Carrasco, L.G.Franquelo, J.T.Bialasiewicz, E. Galvan, R.C. Portillo Guisado, M.A.M. Prats, J.I. Leon and N. Moreno-Alfonso (2006).“Power-electronic systems for the grid integration of renewable energy sources: A survey”, IEEE Trans. Ind. Electron, Vol.53, No. 4, pp. 1002–1016.

[3].F. Blaabjerg, Z. Chen and S.B. Kjaer (2004).“Power electronics as efficient interface in dispersed power generation systems”, IEEE Trans. Power Electron, Vol. 19, No. 5, pp. 1184–1194.

[4].E. Roman, R. Alonso, P. Ibanez, S. Elorduizapatarietxe and D. Goitia (2006). “Intelligent PV module for grid-connected PV systems”, IEEE Trans. Ind. Electron., Vol. 53, No. 4, pp. 1066–1073.

[5].R.J. Wai, W.H. Wang and C.Y. Lin (2008). “High performance stand-alone photovoltaic generation system”, IEEE Trans. Ind. Electron, Vol. 55, No. 1, pp. 240–250.

[6].K. Ramani and A. Krishnan (2009). “High performance Flying Capacitor based Multilevel Inverter fed Induction Motor”, International Journal of Recent Trends in Engineering., Vol. 2, No. 2, pp. 7-9.

[7].Jennifer Bauman and Mehrdad Kazerani (2011). “A Novel Capacitor-Switched Regenerative Snubber for DC/DC Boost Converters”, IEEE Trans. Ind. Electron., Vol. 58, No. 2, pp. 514–523.

[8].Kapil Jain and Pradyumn Chaturvedi (2012). “Matlab - based Simulation & Analysis of Three - level SPWM Inverter”, International Journal of Soft Computing and Engineering (IJSCE)., Vol. 2, issue. 1, pp. 56-59.

[9].D.W. Kang, B.K. Lee, J.H. Jeon, T.J. Kim and D.S. Hyun (2005). “Asymmetric carrier technique of CRPWM for voltage balance method of flying capacitor multilevel inverter”, IEEE Trans. Ind. Electronics., Vol. 52, No. 3, pp. 879-888.

i-manager's Journal on Digital Signal Processing (JDP)

Current Issue Vol. 12 Issue 1

Most Read

Most Cited

Volume 1 Issue 1 January - March 2013

Fault Diagnosis In Multilevel Inverter Drive Fed Induction Motor Using Wavelet Transforms

V. Vinothkumar* , C. Muniraj**

* Department of Electrical and Electronics Engineering, K.S. Rangasamy College of Technology, Thiruchengode, India. ** Department of Electrical and Electronics Engineering, K.S.Rangasamy College of Technology, Thiruchengode, India.

Kumar,V.V., and Muniraj.C. (2013). Fault Diagnosis In Multilevel Inverter Drive Fed Induction Motor Using Wavelet Transforms. i-manager’s Journal on Digital Signal Processing, 1(1), 1-7 https://doi.org/10.26634/jdp.1.1.2198

Abstract

References

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Studies on Triangular Reference with Carrier Overlapping Pulse Width ModulationMethods for Diode Clamped Five Level Inverter

S.Sumathi* , D.Meena**, C. R. Balamurugan***, S. P. Natarajan****

* PG Student, Department of EEE, Arunai Engineering College, Tiruvannamalai, Tamilnadu, India. **-*** Department of EEE, Arunai Engineering College, Tiruvannamalai, Tamilnadu, India. **** Department of EEE, Annamalai University, Chidambaram, Tamilnadu, India.

Sumathi.S.,Meena.D., Balamurugan.C.R., and Natarajan.S.P. (2013). Studies On Triangular Reference With Carrier Overlapping Pulse Width Modulation Methods For Diode Clamped Five Level Inverter. i-manager’s Journal on Digital Signal Processing, 1(1), 8-17 https://doi.org/10.26634/jdp.1.1.2199

Abstract

References

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Comparison of Various Variable AmplitudeCarrier Overlapping PWM Methods for Three Phase Five Level Cascaded Inverter

R. Revathy* , C. R. Balamurugan**, S. P. Natarajan***

* PG Student, Department of EEE, Arunai Engineering College, Tiruvannamalai, Tamilnadu, India. ** Department of EEE, Arunai Engineering College, Tiruvannamalai, Tamilnadu, India. *** Department of EEE, Annamalai University, Chidambaram, Tamilnadu, India.

Revathy.R.,Balamurugan.C.R., and Natarajan.S.P. (2013). Comparison Of Various Variable Amplitude Carrier Overlapping PWM Methods For Three Phase Five Level Cascaded Inverter. i-manager’s Journal on Digital Signal Processing, 1(1), 18-28 https://doi.org/10.26634/jdp.1.1.2200

Abstract

References

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Fuzzy Flatness Based Control Of Three Phase Inverter Fed Induction Motor

Sasikumar C* , C. Muniraj**

Sasikumar.C., and Muniraj.C., (2013). Fuzzy Flatness Based Control Of Three Phase Inverter Fed Induction Motor. i-manager’s Journal on Digital Signal Processing, 1(1), 29-36 https://doi.org/10.26634/jdp.1.1.2201

Abstract

References

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Closed-Loop Approach For Reducing Total Harmonic Distortion In A Flying Capacitor Multilevel Inverter

S. Shanmuga Priyan* , K. Ramani**

* PG Scholar, Power Electronics and Drives, EEE, K.S. Rangasamy College of Technology, Tiruchengode, Tamilnadu, India. ** Professor, EEE, K.S. Rangasamy College of Technology, Tiruchengode, Tamilnadu, India.

Priyan,S.S., and Ramani.K. (2013). A Closed-Loop Approach For Reducing Total Harmonic Distortion In A Flying Capacitor Multilevel Inverter . i-manager’s Journal on Digital Signal Processing, 1(1), 37-46 https://doi.org/10.26634/jdp.1.1.2202

Abstract

References

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* Department of Electrical and Electronics Engineering, K.S. Rangasamy College of Technology, Thiruchengode, India.

** Department of Electrical and Electronics Engineering, K.S.Rangasamy College of Technology, Thiruchengode, India.

S.Sumathi* , D.Meena, C. R. Balamurugan*, S. P. Natarajan****

* PG Student, Department of EEE, Arunai Engineering College, Tiruvannamalai, Tamilnadu, India.

-* Department of EEE, Arunai Engineering College, Tiruvannamalai, Tamilnadu, India.

**** Department of EEE, Annamalai University, Chidambaram, Tamilnadu, India.

R. Revathy* , C. R. Balamurugan, S. P. Natarajan*

* PG Student, Department of EEE, Arunai Engineering College, Tiruvannamalai, Tamilnadu, India.

Department of EEE, Arunai Engineering College, Tiruvannamalai, Tamilnadu, India.

* Department of EEE, Annamalai University, Chidambaram, Tamilnadu, India.

* PG Scholar, Power Electronics and Drives, EEE, K.S. Rangasamy College of Technology, Tiruchengode, Tamilnadu, India.

** Professor, EEE, K.S. Rangasamy College of Technology, Tiruchengode, Tamilnadu, India.