Analysis and Suppression for Temporary Overvoltage Considering Dynamic Interactions Between LCC-HVDC and Renewable Energy Plants

IF 10 1区工程技术 Q1 ENERGY & FUELS

IEEE Transactions on Sustainable Energy Pub Date : 2025-02-05 DOI:10.1109/TSTE.2025.3538682

Xinyu Liu;Jierui Huang;Di Zheng;Huanhai Xin;Tianshu Bi

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引用次数: 0

Abstract

Temporary overvoltage (TOV) severely restricts the development and utilization of renewable power resources (RPRs), especially when RPRs are delivered through the line commutated converter-based high voltage direct current (LCC-HVDC) system. To reveal the TOV mechanism for the sending system during commutation failures (CFs), the transient process of the system is partitioned into different stages, where the evolution of the system trajectories is analyzed. On this basis, the variation of AC voltage and DC current considering complex dynamic interactions between LCC-HVDC and renewable energy Plants (REPs) during repetitive CFs (RCFs) is clearly quantified. After revealing the impact of control parameters of both REPs and the LCC-HVDC on the TOV during RCFs, a collaborative optimization method for control parameters is proposed for TOV suppression. Moreover, when the blocking after the RCF tends to be inevitable, the optimal blocking moment is determined to inhibit the TOV caused by HVDC blocking. The accuracy and effectiveness of the proposed methods are verified with EMT simulations of a typical benchmark system.

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考虑LCC-HVDC与可再生能源电厂动态相互作用的暂态过电压分析与抑制

临时过电压（TOV）严重制约了可再生能源的开发和利用，特别是当可再生能源通过基于线路换向变换器的高压直流（lc - hvdc）系统输送时。为了揭示发送系统在换相故障时的TOV机制，将系统的瞬态过程划分为不同的阶段，并分析了系统轨迹的演变。在此基础上，明确量化了LCC-HVDC与可再生能源电厂（rep）在重复cf （RCFs）过程中考虑复杂动态相互作用的交流电压和直流电流的变化。在揭示REPs和lc - hvdc控制参数对rcf过程中TOV的影响的基础上，提出了一种抑制TOV的控制参数协同优化方法。当RCF后的阻塞趋于不可避免时，确定最佳阻塞力矩以抑制HVDC阻塞引起的TOV。通过一个典型基准系统的EMT仿真，验证了所提方法的准确性和有效性。

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 Sustainable Energy ENERGY & FUELS-ENGINEERING, ELECTRICAL & ELECTRONIC

CiteScore

21.40

自引率

5.70%

发文量

215

审稿时长

5 months

期刊介绍： The IEEE Transactions on Sustainable Energy serves as a pivotal platform for sharing groundbreaking research findings on sustainable energy systems, with a focus on their seamless integration into power transmission and/or distribution grids. The journal showcases original research spanning the design, implementation, grid-integration, and control of sustainable energy technologies and systems. Additionally, the Transactions warmly welcomes manuscripts addressing the design, implementation, and evaluation of power systems influenced by sustainable energy systems and devices.