Impact of Positive Sequence Admittance and Negative Sequence Conductance of D-Statcom to Compensate Variations in Voltage Levels in Distributed Generation Systems
C. Chakravarthi. International Journal of Trend in Scientific Research and Development, 2 (1):
268-278(Dezember 2017)
Zusammenfassung
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. 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 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
%0 Journal Article
%1 noauthororeditor
%A Chakravarthi, CH. Venkata Krishna N. S. Kalyan
%D 2017
%J International Journal of Trend in Scientific Research and Development
%K (D-STATCOM) Distributed Electrical Engineering STATCOM fluctuations grid imbalance micro voltage
%N 1
%P 268-278
%T Impact of Positive Sequence Admittance and Negative Sequence Conductance of D-Statcom to Compensate Variations in Voltage Levels in Distributed Generation Systems
%U 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
%V 2
%X 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. 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 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
@article{noauthororeditor,
abstract = {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. 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 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
},
added-at = {2018-09-01T06:26:56.000+0200},
author = {Chakravarthi, CH. Venkata Krishna N. S. Kalyan},
biburl = {https://www.bibsonomy.org/bibtex/2f8f34b1aa82e6aafa5ec7f87d89c4a40/ijtsrd},
interhash = {659f02ad4d5da3cf47ce978c52526a8d},
intrahash = {f8f34b1aa82e6aafa5ec7f87d89c4a40},
issn = {2456-6470},
journal = {International Journal of Trend in Scientific Research and Development},
keywords = {(D-STATCOM) Distributed Electrical Engineering STATCOM fluctuations grid imbalance micro voltage},
language = {English},
month = dec,
number = 1,
pages = {268-278},
timestamp = {2018-10-02T11:01:27.000+0200},
title = {Impact of Positive Sequence Admittance and Negative Sequence Conductance of D-Statcom to Compensate Variations in Voltage Levels in Distributed Generation Systems
},
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},
volume = 2,
year = 2017
}