Bus Voltage Control with Zero Distortion for Single-Phase Solar Inverters IJTSRD


Single-phase voltage source inverters are commonly used for interfacing small distributed generation units to the grid. Instead of reducing the distortion by lowering the loop gain, the new controller employs a digital FIR filter that samples the bus voltage at an integer multiple of the second harmonic frequency. The operating principle and modulation scheme are described. A closed loop control method is developed to enhance twice the line frequency ripple power compensation performance. The guide for the selection of the decoupling capacitance is also discussed. Simulations and experimental results are presented to show the effectiveness of the method. This paper shows that this can be done by using a voltage ripple estimator along with a larger bandwidth for the voltage control loop and additional measures. The filter presents a notch that removes the second harmonic ripple, enabling a design that operates with zero distortion and high bandwidth simultaneously, and is suitable for inverters with small bus capacitors. The proposed controller is tested on a micro inverter prototype with a 300- Wphotovoltaic panel and a 20–µF bus capacitor.

by P. Kamalakar”Bus Voltage Control with Zero Distortion for Single-Phase Solar Inverters”

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-1 | Issue-6, October 2017,

URL: http://www.ijtsrd.com/papers/ijtsrd2505.pdf

http://www.ijtsrd.com/engineering/electrical-engineering/2505/bus-voltage-control-with-zero-distortion-for-single-phase-solar-inverters/pkamalakar

call for paper Civil Engineering, international journal Agricultural Engineering, ugc approved journals for engineering




Bus Voltage Control with Zero Distortion for Single-Phase Solar Inverters IJTSRD IEEE PAPER





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