用改进的能量函数法评价高压直流输电线路的稳定效果

Proceedings of the IEEE 1999 International Conference on Power Electronics and Drive Systems. PEDS'99 (Cat. No.99TH8475) Pub Date : 1900-01-01 DOI:10.1109/PEDS.1999.792815

T. S. Chung

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引用次数: 2

摘要

本文提出了一种基于修正暂态能量函数法的嵌入式高压直流输电系统暂态稳定性快速分析新方法。该方法基于一种创新的迭代方法，用于评估HVDC链路在每个积分步骤中的交流端子电压，并为提高稳定轨迹计算的效率而开发。此外，在交/直流系统中，采用校正暂态能量和校正势能边界面的校正能量函数法估计暂态能量余量。与传统的混合方法相比，该方法提供了更准确的暂态稳定评估结果。在一个36总线、8台发电机的交直流系统上的仿真结果表明，该方法为估计交直流系统的暂态稳定极限条件提供了一种很有前途的工具。

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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Assessment of stability effects of HVDC link by an improved energy function method

This paper proposes new techniques for the fast transient stability analysis of power systems embedded with HVDC (high voltage DC link) based on a corrected transient energy function approach. The method is based on an innovative iteration approach used to evaluate the AC terminal voltages of HVDC links at each integration step and is developed for enhancing the efficiency of stability trajectory calculations. In addition, the corrected energy function approach with corrected transient energy and corrected potential energy boundary surface is used in the AC/DC system for the estimation of transient energy margin. The approach provides more accurate results in transient stability assessment than conventional hybrid methods. Simulation results on a 36-bus, 8-generator test AC/DC power system are presented to show that the approach offers a promising tool to estimate transient stability limit conditions for AC/DC systems.

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Proceedings of the IEEE 1999 International Conference on Power Electronics and Drive Systems. PEDS'99 (Cat. No.99TH8475)

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