Dynamics of two Chua circuits, mutually coupled via conjugate variables, have been explored both numerically and experimentally. When the two autonomous systems were placed in the oscillatory regime the conjugate coupling provoked suppression of oscillations (amplitude death) in both systems. In contrast, if the two autonomous systems were placed in quiescent (fixed-point) states, then the effect of conjugate coupling was to generate oscillatory behavior (rhythmogenesis) in both systems. These phenomena of amplitude death and rhythmogenesis were found to persist for identical as well as nonidentical systems. It was also realized that the dynamics of the coupled systems can be regulated efficiently by varying the magnitude of conjugate coupling.

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The continuous rise in electricity demand leads to adoption of renewable energy sources such as sun, wind for power generation. In order to utilize the electric power obtained from renewable solar energy, inverters are required to inject the electricity into the grid. This paper presents single phase flying capacitor multi-level inverter with help of SPWM technique. The comparison of single phase three-level, five-level and seven-level flying capacitor multilevel inverters is carried out with respect to waveform pattern, output current, output voltage, active power and reactive power waveforms. The simulations are conducted in MATLAB/SIMULINK environment.

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