The boiler's effect over the electrical power system during a major critic disturbance

Carlos Antonio Sánchez Rentaría, D. O. Salinas
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Abstract

In this article a long-term frequency stability analysis of a multi-machine system after a critic event is developed. Firstly, the variations of the pressures in the boiler is considered and its influence over the electrical system dynamic, as well as the turbine's operational limits due to fatigue for resonant frequencies. Secondly, to reduce the frequency deviations, we use and contrast two technics, the fast valving, and the load shedding.
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在重大临界扰动时锅炉对电力系统的影响
本文对多机系统在临界事件后的长期频率稳定性进行了分析。首先,考虑了锅炉内压力的变化及其对电力系统动态的影响,以及由于谐振频率疲劳引起的汽轮机运行极限。其次,为了减小频率偏差,我们采用了快速阀控和减载两种技术并进行了对比。
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