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Transient Stability Improvement for Combined Heat and Power System Using Load Shedding

机译:利用减载提高热电联产系统的暂态稳定性

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摘要

The purpose of the paper is to analyze and improve the transient stability of an industrial combined heat and power (CHP) system in a high-tech science park in Taiwan. The CHP system installed two 161 kV/161 kV high-impendence transformers to connect with Taipower System (TPS) for both decreasing the short-circuit fault current and increasing the fault critical clearing time. The transient stabilities of three types of operation modes in CHP units, 3G1S, 2G1S, and 1G1S, are analyzed. Under the 3G1S operation mode, the system frequency is immediately restored to 60 Hz after tie line tripping with the TPS. Under the 1G1S and 2G1S operation modes, the system frequencies will continuously decrease and eventually become unstable. A novel transient stability improvement approach using load shedding technique based on the change in frequency is proposed to improve the transient stability.
机译:本文的目的是分析和改善台湾高科技园区的工业热电联产(CHP)系统的暂态稳定性。热电联产系统安装了两个161 kV / 161 kV高阻抗变压器,与台电系统(TPS)连接,以减少短路故障电流并增加故障临界清除时间。分析了CHP单元中的三种操作模式3G1S,2G1S和1G1S的瞬态稳定性。在3G1S操作模式下,使用TPS的联络线跳闸后,系统频率立即恢复到60 Hz。在1G1S和2G1S操作模式下,系统频率将不断降低并最终变得不稳定。提出了一种基于频率变化的减载技术改善暂态稳定性的新方法,以提高暂态稳定性。

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  • 来源
    《Mathematical Problems in Engineering》 |2014年第8期|131062.1-131062.8|共8页
  • 作者单位

    Department of Electrical Engineering, National Chin-Yi University of Technology, No. 57, Section 2, Chung-Shan Road, Taiping District, Taichung 411, Taiwan;

    Department of Electrical Engineering, National Chin-Yi University of Technology, No. 57, Section 2, Chung-Shan Road, Taiping District, Taichung 411, Taiwan;

    School of Electrical and Control Engineering, Xi'an University of Science and Technology, No. 58, Yen-Ta Road, Xi'an 710054, China;

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