基于电力系统常见潮流与可靠性计算分析讨论

Analysis and Discussion of Common Power Flow and Reliability Calculation Based on Power System

我国电力系统已具有现代电力系统的基本特征。大电网的特征在提升了我国电网运行时的经济性和可靠性的同时也降低了系统的稳定性。互联电网可以显著提高电力系统运行的经济性,但互联电网在遇到切机等大扰动情况下自身维持频率稳定的能力比较弱,存在诸多发生频率崩溃的可能性。如何提高电力系统的稳定性,进一步优化电力系统潮流分布是目前大部分学者研究的一重要课题。

China＇s power system has the basic characteristics of modem power system. The characteristics of large power grid not only improve the economy and reliability of the power grid, but also reduce the stability of the system. The interconnected power grid can significantly improve the economy of power system operation, but the interconnected power network has weak ability to maintain frequency stability under large disturbances, such as cutting machine, and there are many possibilities of frequency col lapse. How to improve the stability of the power system and further optimize the power flow distribution is an important topic for most of the current scholars.