论文标题
基于复杂频率概念的电源转换器控制方案的分类学
Taxonomy of Power Converter Control Schemes based on the Complex Frequency Concept
论文作者
论文摘要
本文提出了基于最近提出的复杂频率概念的功率转换器控制方案的分类学。由于总线电压和电流注射的相位角和振幅的变化，该数量捕获了局部频率变化。本文得出了每个转换器控制器的复杂功率变化与复杂频率之间的链接的分析表达，以及临界控制参数的识别。这项工作的主要贡献是提供一个通用框架，该框架允许分类转换器同步机制和控制器。该框架还允许将转换器与同步机进行比较。为了验证理论结果，使用WSCC 9-BUS系统的修改版本进行了广泛的模拟。展示了如何使用论文理论公式来改善电源系统应用中的电源转换器控制的示例。
This paper proposes a taxonomy of power converter control schemes based on the recently proposed concept of complex frequency. This quantity captures local frequency variations due to the change of both the phase angle and amplitude of bus voltages and current injections. The paper derives the analytical expressions of the link between complex power variations and complex frequency of each converter controller as well as the identification of critical control parameters. The main contribution of this work is to provide a general framework that allows classifying converters synchronization mechanisms and controllers. This framework also allows comparing converters with synchronous machines. To validate the theoretical results, extensive simulations are performed using a modified version of the WSCC 9-bus system. Examples of how the theoretical formulations of the paper can be used to improve power converter control in power system applications are showcased.
