串联补偿高压输电线路对DFIM型机组运行的影响

2022 Second International Conference on Power, Control and Computing Technologies (ICPC2T) Pub Date : 2022-03-01 DOI:10.1109/ICPC2T53885.2022.9776982

Vijay Mohale, T. Chelliah

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引用次数: 2

摘要

超高压输电线765k V，连接双馈感应电机(DFIM)，用于易发生次同步振荡(SSO)的变速抽水蓄能电站。因此，提高长传输线输电能力的最具成本效益和最流行的方法是使用串联电容补偿。然而，SSO是一个严重的问题，可能导致电气不稳定和发电机轴故障。本文的主要目的是研究连接到DFIM的传输线中串联补偿引起的次同步振荡。在MATLAB/Simulink中对仿真结果进行了验证，分析了30%、50%和90%串联补偿水平下的单点登录。在实验室对拟投产的特赫里(PSPP)至密鲁特特高压输电线路进行了按比例缩小模型的实验验证。

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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Impact of Series Compensated High Voltage Transmission Lines in the Operation of DFIM Based Hydro Unit

The extra high voltage transmission line 765k V, connected to a doubly-fed induction machine (DFIM) for variable speed pumped storage plant prone to sub-synchronous oscillation (SSO). Hence, the cost-effective and most popular approach to increase the power transfer ability in long transmission lines is to use series capacitive compensation. However, SSO is a significant problem that can cause electrical instability and generator shaft failure. The main motive of this paper is to investigate sub-synchronous oscillations caused by series compensation in a transmission line connected to a DFIM. The simulation is carried out and results are validated in MATLAB/Simulink to analyze SSO in case of different series compensation levels of 30%, 50%, and 90%. The experimental validation is obtained in the laboratory on scale down model of Tehri (PSPP to be commissioned) to Meerut EHV transmission line.

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来源期刊

2022 Second International Conference on Power, Control and Computing Technologies (ICPC2T)

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