Chandran Balamurugan

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The present work discusses and compares the toluene sensing behavior of polyaniline (PANI) and graphene/polyaniline nanocomposite (C-PANI) films. The graphene-PANI ratio in the nanocomposite polymer film is optimized at 1:2. For this, N-methyl-2-pyrrolidone (NMP) solvent is used to prepare PANI-NMP solution as well as graphene-PANI-NMP solution. The films(More)
This paper presents the comparison of Carrier Overlapping Pulse Width Modulation (COPWM) techniques for the Cascaded Multi Level Inverter (CMLI). A CMLI is controlled in this paper with Sinusoidal PWM (SPWM) reference, Third Harmonic Injection PWM (THI PWM) reference, Sixty degree PWM reference and Stepped wave reference with Carrier Overlapping (CO)(More)
This paper presents the comparison of various Pulse Width Modulation (PWM) strategies for the three phase Diode Clamped Multi Level Inverter (DCMLI). The main contribution of this paper is the proposal of new modulation schemes with Variable Amplitude (VA) and various new schemes adopting the constant switching frequency and also variable switching(More)
This paper presents the comparison of Unipolar Inverted Sine Carrier Pulse Width Modulation (UISCPWM) techniques for the Cascaded Multi Level Inverter (CMLI). Due to switch combination redundancies, there are certain degrees of freedom to generate the multilevel AC output voltage. This paper presents the use of Control Freedom Degree (CFD) combination. The(More)
Multilevel inverters have been widely used for high power and high voltage applications as their performance is highly superior to that of conventional two level inverters due to reduced harmonic distortion, lower electromagnetic interference, and higher dc link voltages but it has some disadvantages such as increased number of components, complex pulse(More)
Multilevel inverter technology has emerged recently as a very important in the area of high-power medium-voltage energy control, with the added advantages of lower THD, lower electromagnetic interference (EMI) and lower dv/dt stresses in output. A new topology of a cascaded multilevel inverter is proposed in this paper that utilizes only eight but the(More)
This work proposes new modified hybrid H-bridge multilevel inverter using bidirectional auxiliary switch. The new topology produces a significant reduction in the number of power devices and capacitors required to implement a multilevel output when compared to the conventional MLIs. It is used in the design of a five-level output. The reduced number of(More)
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