Efficient Dynamic Phasor and Frequency Estimation Using Evolving Order Based Arctangent Affine Projection Algorithm

IF 7.2 1区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Power Systems Pub Date : 2025-03-12 DOI:10.1109/TPWRS.2025.3550656

Kuber Saxena;Subhransu Ranjan Samantaray;Sarita Nanda

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引用次数: 0

Abstract

Phasor Measurement Units (PMUs) find wider applications in modern power systems and compliance of the performance metrics is mandated. Under dynamic conditions, PMU algorithms must ensure accurate measurement with short latencies and high reporting rates. The existing estimators mostly require at least two cycles to meet the P Class standards specified in the IEEE/IEC 60255-118-1a:2018. In this article a synchrophasor estimation algorithm is proposed that relies on dynamic signal modelling with arctangent cost function minimized using the evolving order affine projection (E-ATAPA) algorithm to maximize precision within one-cycle interval. Additionally, it considers a new signal model during critical phase change for estimating frequency and rate of change of frequency (ROCOF). Moreover, the evolving order compares the instantaneous power of output error to a threshold determined by the computed steady-state mean-square error (MSE) of E-ATAPA, thereby enabling variable projection orders that reduces overall computational complexity. This enables implementation on GPS synchronized digital signal processors (DSP) with reduced turnaround time.

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基于进化阶的反正切仿射投影算法的高效动态相量和频率估计

相量测量单元（pmu）在现代电力系统中得到了更广泛的应用，并且要求遵守性能指标。在动态条件下，PMU算法必须保证准确的测量、短延迟和高报告率。现有的估计器大多需要至少两个周期才能满足IEEE/IEC 60255-118-1a:2018中规定的P级标准。本文提出了一种基于动态信号建模的同步相量估计算法，该算法使用进化阶仿射投影（E-ATAPA）算法最小化arctan代价函数，以在一个周期间隔内最大化精度。此外，还考虑了一种新的临界相变信号模型，用于估计频率和频率变化率（ROCOF）。此外，进化阶数将输出误差的瞬时功率与E-ATAPA计算的稳态均方误差（MSE）确定的阈值进行比较，从而实现可变投影阶数，从而降低整体计算复杂度。这使得GPS同步数字信号处理器（DSP）的实现缩短了周转时间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Power Systems 工程技术-工程：电子与电气

CiteScore

15.80

自引率

7.60%

发文量

696

审稿时长

3 months

期刊介绍： The scope of IEEE Transactions on Power Systems covers the education, analysis, operation, planning, and economics of electric generation, transmission, and distribution systems for general industrial, commercial, public, and domestic consumption, including the interaction with multi-energy carriers. The focus of this transactions is the power system from a systems viewpoint instead of components of the system. It has five (5) key areas within its scope with several technical topics within each area. These areas are: (1) Power Engineering Education, (2) Power System Analysis, Computing, and Economics, (3) Power System Dynamic Performance, (4) Power System Operations, and (5) Power System Planning and Implementation.