电压幅值与相角独立控制的可控变压器暂态稳定控制器设计

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摘要提出了一种新型FACTS技术——电压幅值与相角独立控制的可控变压器技术,该可控变压器由小功率的变换器与带分接头的单铁心三相变压器组成,通过小功率变换器动态调节可控变压器输出电压的幅值和相位,实现其输出的有功功率与无功功率的解耦控制。并以单机无穷大系统为例,应用直接反馈线性化的方法对可控变压器设计了提高暂态稳定性的控制器。通过MATLAB/Simulink数字仿真验证了通过控制可控变压器输出电压的幅值和相位,调节其输出有功功率和无功功率的功能,以及所设计的可控变压器控制器提高单机无穷大系统暂态稳定性的效果。

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	许聪
	李国杰

关键词 ：可控变压器, 电压幅值与相角独立控制, 动态潮流控制, FACTS, 分接头, 暂态稳定

Abstract：A new type of flexible AC transmission system (FACTS) technology is proposed in this study. A single-core three-phase transformer with tap changers is designed as a controllable transformer with small rated converters. The magnitude and phase angle of the output voltage of the controllable transformer are controlled simultaneously. Thus, real and reactive power of the controllable transformer can be controlled independently. A controller of the controllable transformer is designed to improve the transient stability of a single-machine-infinite-bus system using the direct feedback linearization method. The simulation results show the effectiveness of the proposed controllable transformer and corresponding transient stability enhancement controller.

Key words： keywords：Controllable transformer independent control of voltage magnitude and phase angle dynamic power flow control FACTS tap transient stability

收稿日期: 2012-09-19 出版日期: 2013-12-12

PACS:

TM315

基金资助:国家高技术研究发展计划(863计划)(2012AA050204)和国家自然科学基金(50977050)资助项目。

作者简介: 许聪男，1989年生，硕士研究生，研究方向为新型FACTS及其控制。李国杰男，1965年生，教授，博士生导师，研究方向为FACTS、新能源、微网。

引用本文:

许聪, 李国杰. 电压幅值与相角独立控制的可控变压器暂态稳定控制器设计[J]. 电工技术学报, 2013, 28(1增): 191-196. Xu Cong, Li Guojie. The Design of Transient Stability Improvement Controller for Controllable Transformer with Decoupled Voltage Magnitude and Phase Angle. Transactions of China Electrotechnical Society, 2013, 28(1增): 191-196.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2013/V28/I1增/191

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