Impact of Positive Sequence Admittance and Negative Sequence Conductance of D-Statcom to Compensate Variations in Voltage Levels in Distributed Generation Systems - International Journal of Trend in Scientific Research and Development

International Journal of Trend in Scientific Research and Development

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    • Tuesday, 7 November 2017

    Home Electrical Engineering Impact of Positive Sequence Admittance and Negative Sequence Conductance of D-Statcom to Compensate Variations in Voltage Levels in Distributed Generation Systems

    Impact of Positive Sequence Admittance and Negative Sequence Conductance of D-Statcom to Compensate Variations in Voltage Levels in Distributed Generation Systems

    Voltage fluctuations resulting from variable output power of renewable energy sources are strictly challenging power quality in distributed-generation systems. This paper presents a control method for distributed static synchronous compensator (D-STATCOM) to alleviate variation of both positive- and negative-sequence voltages.

    The D-STATCOM simultaneously operates as fundamental positive-sequence admittance and fundamental negative-sequence conductance to restore the positive sequence voltage to the nominal value as well as reduce the negative-sequence voltage to an allowable level.

    Both admittance and conductance are dynamically tuned to improve voltage regulation performances in response to load changes and power variation of renewable sources. A proportional'“resonant current regulator with selectively harmonic compensation is realized to control the fundamental current of the D-STATCOM as well as reduce the harmonic current, which could be an advantage in practical applications due to high voltage distortion in low-voltage micro grids.

    Voltage-regulation performances are discussed for different D-STATCOM locations as well as different D-STATCOM currents. Computer simulations and laboratory tests validate effectiveness.

    by CH. Venkata Krishna | N. S. Kalyan Chakravarthi"Impact of Positive Sequence Admittance and Negative Sequence Conductance of D-Statcom to Compensate Variations in Voltage Levels in Distributed Generation Systems"

    Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-1 , December 2017,

    URL: http://www.ijtsrd.com/papers/ijtsrd5919.pdf 

    Direct URL: http://www.ijtsrd.com/engineering/electrical-engineering/5919/impact-of-positive-sequence-admittance-and-negative-sequence-conductance-of-d-statcom-to-compensate-variations-in-voltage-levels-in-distributed-generation-systems/ch-venkata-krishna

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