Fast amplitude estimation for Low-Voltage Ride-Through Operation of Single-Phase Systems

Juxiang Zhang; Peiqi Zhao; Zhen Zhang; Y. Yang; F. Blaabjerg; Zhiyong Dai

doi:10.1109/ACCESS.2019.2963226

Fast amplitude estimation for Low-Voltage Ride-Through Operation of Single-Phase Systems

Juxiang Zhang, Peiqi Zhao, Zhen Zhang^*, Y. Yang, F. Blaabjerg, Zhiyong Dai

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

3 Citations (Scopus)

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Abstract

Estimating the amplitude of the grid voltage is important for low-voltage ride-through (LVRT) operation in single-phase systems. It requires fast dynamics and is typically achieved through a phase-locked loop (PLL). This paper proposes a fast amplitude estimation (FAE) method without a PLL structure. The grid voltage is formulated as a vector sum of sine and cosine functions, resulting in an algebraic model with two unknown parameters. The proposed FAE identifies the two parameters, and thus achieving a fast fault detection (i.e., the amplitude estimation). Experimental results verify the performance of the proposed method in terms of fast dynamics.

Original language	English
Article number	8946577
Journal	IEEE Access
Volume	8
Pages (from-to)	8477-8484
Number of pages	8
ISSN	2169-3536
DOIs	https://doi.org/10.1109/ACCESS.2019.2963226
Publication status	Published - Jan 2020

Keywords

Amplitude estimation
voltage sags
low-voltage ride-through (LVRT)
parameter identification
single-phase systems
grid synchronization

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10.1109/ACCESS.2019.2963226Licence: CC BY 4.0

Open Access articleFinal published version, 1.13 MBLicence: CC BY 4.0

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title = "Fast amplitude estimation for Low-Voltage Ride-Through Operation of Single-Phase Systems",

abstract = "Estimating the amplitude of the grid voltage is important for low-voltage ride-through (LVRT) operation in single-phase systems. It requires fast dynamics and is typically achieved through a phase-locked loop (PLL). This paper proposes a fast amplitude estimation (FAE) method without a PLL structure. The grid voltage is formulated as a vector sum of sine and cosine functions, resulting in an algebraic model with two unknown parameters. The proposed FAE identifies the two parameters, and thus achieving a fast fault detection (i.e., the amplitude estimation). Experimental results verify the performance of the proposed method in terms of fast dynamics.",

keywords = "Amplitude estimation, voltage sags, low-voltage ride-through (LVRT), parameter identification, single-phase systems, grid synchronization, Amplitude estimation, voltage sags, low-voltage ride-through (LVRT), parameter identification, single-phase systems, grid synchronization",

author = "Juxiang Zhang and Peiqi Zhao and Zhen Zhang and Y. Yang and F. Blaabjerg and Zhiyong Dai",

year = "2020",

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doi = "10.1109/ACCESS.2019.2963226",

language = "English",

volume = "8",

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T1 - Fast amplitude estimation for Low-Voltage Ride-Through Operation of Single-Phase Systems

AU - Zhang, Juxiang

AU - Zhao, Peiqi

AU - Zhang, Zhen

AU - Yang, Y.

AU - Blaabjerg, F.

AU - Dai, Zhiyong

PY - 2020/1

Y1 - 2020/1

N2 - Estimating the amplitude of the grid voltage is important for low-voltage ride-through (LVRT) operation in single-phase systems. It requires fast dynamics and is typically achieved through a phase-locked loop (PLL). This paper proposes a fast amplitude estimation (FAE) method without a PLL structure. The grid voltage is formulated as a vector sum of sine and cosine functions, resulting in an algebraic model with two unknown parameters. The proposed FAE identifies the two parameters, and thus achieving a fast fault detection (i.e., the amplitude estimation). Experimental results verify the performance of the proposed method in terms of fast dynamics.

AB - Estimating the amplitude of the grid voltage is important for low-voltage ride-through (LVRT) operation in single-phase systems. It requires fast dynamics and is typically achieved through a phase-locked loop (PLL). This paper proposes a fast amplitude estimation (FAE) method without a PLL structure. The grid voltage is formulated as a vector sum of sine and cosine functions, resulting in an algebraic model with two unknown parameters. The proposed FAE identifies the two parameters, and thus achieving a fast fault detection (i.e., the amplitude estimation). Experimental results verify the performance of the proposed method in terms of fast dynamics.

KW - Amplitude estimation

KW - voltage sags

KW - low-voltage ride-through (LVRT)

KW - parameter identification

KW - single-phase systems

KW - grid synchronization

KW - Amplitude estimation

KW - voltage sags

KW - low-voltage ride-through (LVRT)

KW - parameter identification

KW - single-phase systems

KW - grid synchronization

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U2 - 10.1109/ACCESS.2019.2963226

DO - 10.1109/ACCESS.2019.2963226

M3 - Journal article

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EP - 8484

JO - IEEE Access

JF - IEEE Access

M1 - 8946577

ER -

Fast amplitude estimation for Low-Voltage Ride-Through Operation of Single-Phase Systems

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Keywords

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