Impact of double-loop controller on grid connected inverter input admittance using virtual resistor

Arwindra Rizqiawan; Goro Fujita; Toshihisa Funabashiy; Masakatsu Nomuray

doi:10.1109/IAPEC.2011.5779853

Impact of double-loop controller on grid connected inverter input admittance using virtual resistor

Arwindra Rizqiawan, Goro Fujita, Toshihisa Funabashiy, Masakatsu Nomuray

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Grid connected inverter offers better controllability and better operation, however, there is a risk for local instabilities due to particular control scheme. As long as the input admittance is positive at particular resonance frequency, the risk of local instability can be suppressed. In this paper, the virtual resistor concept is employed to obtain the positive input admittance. Impact of double-loop controller using virtual resistor on converter passivity is analyzed by observing the input admittance of the grid connected inverter. By numerical analysis, it can be shown that employment of virtual resistor gives better input admittance of grid connected inverter, particularly in low frequency region.

Original language	English
Title of host publication	2011 IEEE Applied Power Electronics Colloquium, IAPEC 2011
Pages	170-175
Number of pages	6
DOIs	https://doi.org/10.1109/IAPEC.2011.5779853
Publication status	Published - 2011 Jun 24
Event	2011 IEEE Applied Power Electronics Colloquium, IAPEC 2011 - Johor Bahru, Malaysia Duration: 2011 Apr 18 → 2011 Apr 19

Publication series

Name	2011 IEEE Applied Power Electronics Colloquium, IAPEC 2011

Conference

Conference	2011 IEEE Applied Power Electronics Colloquium, IAPEC 2011
Country/Territory	Malaysia
City	Johor Bahru
Period	11/4/18 → 11/4/19

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1109/IAPEC.2011.5779853

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Impact of double-loop controller on grid connected inverter input admittance using virtual resistor. / Rizqiawan, Arwindra; Fujita, Goro; Funabashiy, Toshihisa et al.
2011 IEEE Applied Power Electronics Colloquium, IAPEC 2011. 2011. p. 170-175 5779853 (2011 IEEE Applied Power Electronics Colloquium, IAPEC 2011).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Rizqiawan, A, Fujita, G, Funabashiy, T & Nomuray, M 2011, Impact of double-loop controller on grid connected inverter input admittance using virtual resistor. in 2011 IEEE Applied Power Electronics Colloquium, IAPEC 2011., 5779853, 2011 IEEE Applied Power Electronics Colloquium, IAPEC 2011, pp. 170-175, 2011 IEEE Applied Power Electronics Colloquium, IAPEC 2011, Johor Bahru, Malaysia, 11/4/18. https://doi.org/10.1109/IAPEC.2011.5779853

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abstract = "Grid connected inverter offers better controllability and better operation, however, there is a risk for local instabilities due to particular control scheme. As long as the input admittance is positive at particular resonance frequency, the risk of local instability can be suppressed. In this paper, the virtual resistor concept is employed to obtain the positive input admittance. Impact of double-loop controller using virtual resistor on converter passivity is analyzed by observing the input admittance of the grid connected inverter. By numerical analysis, it can be shown that employment of virtual resistor gives better input admittance of grid connected inverter, particularly in low frequency region.",

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AB - Grid connected inverter offers better controllability and better operation, however, there is a risk for local instabilities due to particular control scheme. As long as the input admittance is positive at particular resonance frequency, the risk of local instability can be suppressed. In this paper, the virtual resistor concept is employed to obtain the positive input admittance. Impact of double-loop controller using virtual resistor on converter passivity is analyzed by observing the input admittance of the grid connected inverter. By numerical analysis, it can be shown that employment of virtual resistor gives better input admittance of grid connected inverter, particularly in low frequency region.

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Impact of double-loop controller on grid connected inverter input admittance using virtual resistor

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