A development of pseudo-synchronizing power VSCs controller for grid stabilization
A development of pseudo-synchronizing power VSCs controller for grid stabilization
复制标题
用于电网稳定的伪同步电力VSC控制器的开发
DOI：
10.1109/pscc.2016.7540917
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
I. Nishizaki
中科院分区：
文献类型：
--
作者：
Shinya Sekizaki;Yuki Nakamura;Y. Sasaki;N. Yorino;Y. Zoka;I. Nishizaki
为了构建抗自然灾害等干扰的弹性电力系统，近年来人们提出了各种新的微电网运行技术。虽然主要的可再生能源通常与单相馈线连接，但单相微电网运行的研究工作很少。本文研究了用电压源变换器（VSCs）实现单相微电网的方法。电压源变换器广泛应用于直流基可再生能源系统与传统配电馈线的连接。首先研究了三相VSC中有效的虚拟惯性设计，以实现强同步运行和增强暂态稳定性。然后，我们提出了一个单相VSC的控制框架，其中我们开发了一种新的同步机制，我们称之为直流侧测量。为了保证微电网的稳定可靠运行，控制器中还加入了调速器和自动电压调节器（AVR）。结果表明，在三相馈线中，每个相位独立使用所提出的VSC也可以成功地工作。在单相和三相配电系统的数值模拟中验证了该方法的有效性，多个vsc在正常模式和孤岛模式下成功运行。
In order to constitute the resilient power system against disturbances including natural disaster, various new technologies for microgrid operations have been proposed recently. Although major Renewable Energy Sources (RESs) are usually connected to single-phase feeders, there exist few research works on single-phase microgrid operations. This paper investigates the realization of the single-phase microgrid by using Voltage Source Converters (VSCs) which are widely used to connect DC-base RES systems to conventional distribution feeders. We first study effective virtual inertia design in three-phase VSC in order to realize strong synchronizing operation as well as the enhancement of transient stability. Then, we propose a control framework for single-phase VSC, in which a new synchronizing mechanism that we call DC side measurement is developed. A governor and an Automatic Voltage Regulator (AVR) are also implemented into the controller to contribute to stable and reliable operation of the microgrid. It is shown that the independent use of the proposed VSC in each phase can also work successfully in a three-phase feeder. The effectiveness of the proposed method is verified in numerical simulations in single-phase and three-phase distribution systems where multiple VSCs are successfully operated in normal and islanding modes.
影响因子：
7.7
作者：
Zhong, Qing-Chang;Weiss, George
通讯作者：
Weiss, George