Steady-state invariant-frequency control of parallel redundant uninterruptible power supplies

Josep M. Guerrero; Luis Garcia de Vicuña; Jose Matas; Jaume Miret

doi:10.1109/IECON.2002.1187520

Steady-state invariant-frequency control of parallel redundant uninterruptible power supplies

Josep M. Guerrero^*, Luis Garcia de Vicuña, Jose Matas, Jaume Miret

^*Corresponding author for this work

Research output: Contribution to conference without publisher/journal › Paper without publisher/journal › Research › peer-review

20 Citations (Scopus)

Abstract

In this paper, a new approach for the wireless control of parallel-connected Uninterruptible Power Supplies is proposed. This method can perform the output-voltage frequency accuracy of the paralleled system, by using a transient droop characteristic. In this manner, the controller endows to the system absence of frequency-deviation in steady state conditions. This fact contrasts with conventional P-ω droop schemes, in which the trade-off between active power sharing and frequency variation limits strongly the performances. The proposed control is particularly suitable since both steady-state invariant frequency and good current balance are achieved. In addition, the transient response can be easily modified by means of controller parameters. Simulation results are reported to prove the feasibility of the approach for this kind of systems.

Original language	English
Publication date	Dec 2002
Number of pages	4
DOIs	https://doi.org/10.1109/IECON.2002.1187520
Publication status	Published - Dec 2002
Externally published	Yes
Event	Proceedings of the 2002 28th Annual Conference of the IEEE Industrial Electronics Society - Sevilla, Spain Duration: 5 Nov 2002 → 8 Nov 2002

Conference

Conference	Proceedings of the 2002 28th Annual Conference of the IEEE Industrial Electronics Society
Country/Territory	Spain
City	Sevilla
Period	05/11/2002 → 08/11/2002
Sponsor	IEEE, Industrial Electronics Society, SICE, University of Seville

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10.1109/IECON.2002.1187520

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title = "Steady-state invariant-frequency control of parallel redundant uninterruptible power supplies",

abstract = "In this paper, a new approach for the wireless control of parallel-connected Uninterruptible Power Supplies is proposed. This method can perform the output-voltage frequency accuracy of the paralleled system, by using a transient droop characteristic. In this manner, the controller endows to the system absence of frequency-deviation in steady state conditions. This fact contrasts with conventional P-ω droop schemes, in which the trade-off between active power sharing and frequency variation limits strongly the performances. The proposed control is particularly suitable since both steady-state invariant frequency and good current balance are achieved. In addition, the transient response can be easily modified by means of controller parameters. Simulation results are reported to prove the feasibility of the approach for this kind of systems.",

author = "Guerrero, {Josep M.} and {Garcia de Vicu{\~n}a}, Luis and Jose Matas and Jaume Miret",

year = "2002",

month = dec,

doi = "10.1109/IECON.2002.1187520",

language = "English",

pages = "274--277",

note = "Proceedings of the 2002 28th Annual Conference of the IEEE Industrial Electronics Society ; Conference date: 05-11-2002 Through 08-11-2002",

}

Steady-state invariant-frequency control of parallel redundant uninterruptible power supplies. / Guerrero, Josep M.; Garcia de Vicuña, Luis; Matas, Jose et al.
2002. 274-277 Paper presented at Proceedings of the 2002 28th Annual Conference of the IEEE Industrial Electronics Society, Sevilla, Spain.

Research output: Contribution to conference without publisher/journal › Paper without publisher/journal › Research › peer-review

TY - CONF

T1 - Steady-state invariant-frequency control of parallel redundant uninterruptible power supplies

AU - Guerrero, Josep M.

AU - Garcia de Vicuña, Luis

AU - Matas, Jose

AU - Miret, Jaume

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N2 - In this paper, a new approach for the wireless control of parallel-connected Uninterruptible Power Supplies is proposed. This method can perform the output-voltage frequency accuracy of the paralleled system, by using a transient droop characteristic. In this manner, the controller endows to the system absence of frequency-deviation in steady state conditions. This fact contrasts with conventional P-ω droop schemes, in which the trade-off between active power sharing and frequency variation limits strongly the performances. The proposed control is particularly suitable since both steady-state invariant frequency and good current balance are achieved. In addition, the transient response can be easily modified by means of controller parameters. Simulation results are reported to prove the feasibility of the approach for this kind of systems.

AB - In this paper, a new approach for the wireless control of parallel-connected Uninterruptible Power Supplies is proposed. This method can perform the output-voltage frequency accuracy of the paralleled system, by using a transient droop characteristic. In this manner, the controller endows to the system absence of frequency-deviation in steady state conditions. This fact contrasts with conventional P-ω droop schemes, in which the trade-off between active power sharing and frequency variation limits strongly the performances. The proposed control is particularly suitable since both steady-state invariant frequency and good current balance are achieved. In addition, the transient response can be easily modified by means of controller parameters. Simulation results are reported to prove the feasibility of the approach for this kind of systems.

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T2 - Proceedings of the 2002 28th Annual Conference of the IEEE Industrial Electronics Society

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Steady-state invariant-frequency control of parallel redundant uninterruptible power supplies

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