TCSC based filtering and improvement of power quality

Arulvendhan, K.; Srinivasan, J. Dilli; Vinil, M.

doi:10.1088/1742-6596/1000/1/012122

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2022

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“…The inverter current is forced to freewheel through diodes D3 and D4 since the output voltage of the inverter is positive and current is negative. 𝑉 = +𝑉 𝑃𝑉 [14] In the second state, S5 is turned on while S1 and S3 are off, due to which the common mode voltage reduces to half.…”

Section: Mode IIImentioning

confidence: 99%

Reactive Power Injection to Grid Using Transformer-Less MOSFET Based Single Phase Inverter Using PV to Achieve High Efficiency

et al. 2022

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The transformer-less inverter has an increasing demand due to its low cost, high efficiency, and reliability. The elimination of transformers from grid connected PV enables to create the leakage currents across stray capacitance, which is connected between PV and the ground. To overcome this disadvantageous issue, the topology used is a single step conversion process of directly connecting coupled inductor to the grid. The efficiency and the quality of AC output current is improved by implementation of high frequency PWM switching commutation to the converter. The proposed system is focused to inject reactive power to the grid, changing the controlling techniques used for the Gate Pulse input, and reducing the number of switches, passive elements, and harmonics. It has an overall efficiency of 98.04%, higher than those of existing converters.

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Section: Mode IIImentioning

confidence: 99%