论文标题
DC功率电网中具有分布式控制转换器和恒定功率负载的大信号稳定性标准
Large-Signal Stability Criteria in DC Power Grids with Distributed-Controlled Converters and Constant Power Loads
论文作者
论文摘要
电力电子设备的越来越多可能导致未来电力系统的大量干扰和不稳定。但是，稳定性标准仍然是一个尚未解决的难题，因为当发生大型干扰时，传统的小信号分析不适用于启用电子电源的电力系统，例如故障，脉冲功率负载或负载转换。为了解决这个问题，本文首次介绍了具有分布式控制的DC-DC功率转换器的DC微电网中足够标准的严格推导。设计和考虑了一种新型的闭环转换器控制器。此外，本文是第一个证明著名且经常被引用的布雷顿 - 梅斯 - 混合潜在理论（1964年出版）的论文是不完整的。进行案例研究以说明布雷顿 - 梅斯混合潜在理论的缺陷，并验证提出的新型稳定标准的有效性。
The increasing adoption of power electronic devices may lead to large disturbance and destabilization of future power systems. However, stability criteria are still an unsolved puzzle, since traditional small-signal stability analysis is not applicable to power electronics-enabled power systems when a large disturbance occurs, such as a fault, a pulse power load, or load switching. To address this issue, this paper presents for the first time the rigorous derivation of the sufficient criteria for large-signal stability in DC microgrids with distributed-controlled DC-DC power converters. A novel type of closed-loop converter controllers is designed and considered. Moreover, this paper is the first to prove that the well-known and frequently cited Brayton-Moser mixed potential theory (published in 1964) is incomplete. Case studies are carried out to illustrate the defects of Brayton-Moser mixed potential theory and verify the effectiveness of the proposed novel stability criteria.
