Delayed Sampling-Based Power Grid Parameter Modeling and Estimation Method for Wind Power System with DC Component

Zhou, Youfeng; Li, Guangqi; Dai, Zhiyong; Liu, Xiaofei; Liu, Yuyan; Zhu, Yihua; Luo, Chao

doi:10.3390/electronics15010091

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Delayed Sampling-Based Power Grid Parameter Modeling and Estimation Method for Wind Power System with DC Component

by

Youfeng Zhou

¹,

Guangqi Li

^1,*,

Zhiyong Dai

¹,

Xiaofei Liu

¹,

Yuyan Liu

²,

Yihua Zhu

² and

Chao Luo

²

¹

School of Mechano-Electronic Engineering, Xidian University, Xi’an 710071, China

²

State Key Laboratory of HVDC, Electric Power Research Institute, China Southern Power Grid, Guangzhou 510663, China

^*

Author to whom correspondence should be addressed.

Electronics 2026, 15(1), 91; https://doi.org/10.3390/electronics15010091 (registering DOI)

Submission received: 14 October 2025 / Revised: 26 November 2025 / Accepted: 23 December 2025 / Published: 24 December 2025

(This article belongs to the Special Issue New Trends in Power Electronics for Renewable Energy and Power Systems)

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Abstract

Wind power systems often introduce interfering DC components that distort power measurements and threaten grid stability. To address these issues, this paper proposes a novel delayed sampling-based grid parameter estimation method that explicitly accounts for DC disturbances. By transforming the estimation problem into a linear regression form via nonlinear algebraic transformation, an adaptive recursive identification algorithm is developed to estimate grid frequency, amplitude, phase, and DC component simultaneously. Rigorous stability analysis is provided to guarantee convergence and robustness of the estimator in the presence of DC components. Experimental results demonstrate fast transient response and zero steady-state error, validating the effectiveness of the proposed method for real-time grid parameter estimation.

Keywords: DC component; power estimation; frequency estimation; delay sampling; recursive algorithm

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MDPI and ACS Style

Zhou, Y.; Li, G.; Dai, Z.; Liu, X.; Liu, Y.; Zhu, Y.; Luo, C. Delayed Sampling-Based Power Grid Parameter Modeling and Estimation Method for Wind Power System with DC Component. Electronics 2026, 15, 91. https://doi.org/10.3390/electronics15010091

AMA Style

Zhou Y, Li G, Dai Z, Liu X, Liu Y, Zhu Y, Luo C. Delayed Sampling-Based Power Grid Parameter Modeling and Estimation Method for Wind Power System with DC Component. Electronics. 2026; 15(1):91. https://doi.org/10.3390/electronics15010091

Chicago/Turabian Style

Zhou, Youfeng, Guangqi Li, Zhiyong Dai, Xiaofei Liu, Yuyan Liu, Yihua Zhu, and Chao Luo. 2026. "Delayed Sampling-Based Power Grid Parameter Modeling and Estimation Method for Wind Power System with DC Component" Electronics 15, no. 1: 91. https://doi.org/10.3390/electronics15010091

APA Style

Zhou, Y., Li, G., Dai, Z., Liu, X., Liu, Y., Zhu, Y., & Luo, C. (2026). Delayed Sampling-Based Power Grid Parameter Modeling and Estimation Method for Wind Power System with DC Component. Electronics, 15(1), 91. https://doi.org/10.3390/electronics15010091

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Delayed Sampling-Based Power Grid Parameter Modeling and Estimation Method for Wind Power System with DC Component

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