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Autonomous AC Grid Based on Multi-infeed Voltage Source Converter Stations

机译:基于多馈电压源换流站的自主交流电网

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摘要

It is desirable that remote isolated communities can become self-sufficient in electric power through harnessing energy from renewable energy sources. Taking advantage of the high controllability of voltage source converters, a scheme to realize a stand-alone AC grid for such an isolated community is examined. It uses voltage source converter stations as frequency changers. The multi-infeed voltage source converter design succeeds in the dual roles of maintaining the grid AC voltage while balancing real power generation and loads using local information only. The stability of the power system under the proposed control scheme, as affected by the control coefficients and operating conditions, is investigated. An analysis of eigenvalue sensitivity to control parameters is also included. Proof of the concept is carried by digital simulation studies.
机译:理想的是,偏远的偏远社区可以通过利用可再生能源的能源来实现电力自给。利用电压源转换器的高度可控性,研究了一种为此类隔离社区实现独立交流电网的方案。它使用电压源换流站作为变频器。多馈源电压源转换器设计在保持电网交流电压的同时,仅使用本地信息来平衡实际发电量和负载,起到了双重作用。研究了在所提出的控制方案下电力系统的稳定性,该稳定性受控制系数和操作条件的影响。还包括特征值对控制参数的敏感性分析。数字仿真研究证明了这一概念。

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