电力电子化电力系统多尺度电压功角动态稳定问题

发布时间：2018-01-10 23:25

本文关键词：电力电子化电力系统多尺度电压功角动态稳定问题　出处：《中国电机工程学报》2016年19期 　论文类型：期刊论文

【摘要】：随着可再生能源发电、远距离输电及无功补偿和交流传动等应用的快速发展,电力电子变换装备以其在电能变换方面的灵活性在电力系统中的渗透水平不断提高,深刻地改变着电力系统的动态行为。近年来,国内外电力系统持续出现各种不明机理的动态问题,对电力系统安全稳定和运行构成重大威胁。该文从主要发电、输电和负荷装备的控制方式、动态特性及其对电力系统动态行为的影响角度出发,分析一次调频时间尺度以下电力电子化电力系统电压功角动态稳定问题的多尺度特征,并初步提出基于幅相运动方程、自稳性致稳性及广义稳定器等3个方面的系统建模、分析和控制的一般化概念和方法,即幅相动力学方法。
[Abstract]:With the rapid development of renewable energy generation, long-distance transmission and reactive power compensation and AC transmission applications. Power electronic transformation equipment with its flexibility in power conversion in the power system has been improving the level of penetration, profoundly changing the dynamic behavior of the power system in recent years. Domestic and foreign power systems continue to appear various dynamic problems with unknown mechanism, which pose a great threat to the safety and stability and operation of power systems. This paper discusses the control methods of main generation, transmission and load equipment. From the point of view of dynamic characteristic and its influence on dynamic behavior of power system, the multi-scale characteristic of dynamic stability of electric power system voltage angle under primary frequency modulation time scale is analyzed. A general concept and method of analysis and control, namely amplitude-phase dynamics method, is proposed for system modeling, analysis and control based on three aspects: amplitude and phase motion equation, self-stability stability and generalized stabilizer.
【作者单位】：强电磁工程与新技术国家重点实验室(华中科技大学);
【基金】：国家重点基础研究发展计划项目(973项目)(2012CB 215100) 国家自然科学基金重大项目课题(51190104)~~
【分类号】：TM712
【正文快照】： 0引言自19世纪末建成商业化交流电力系统以来,虽然电压等级不断增加、装机容量不断提升、地域范围不断扩大,但电源、电网、负荷等环节一直主要由发电机、变压器、电动机等电磁变换装备所构成。随着技术的成熟,电磁变换装备正逐步被电力电子变换装备所取代,如图1所示,成为电

【参考文献】