论文标题
关于网格形成转换器的电源控制：建模，可控性和全州反馈设计
On Power Control of Grid-Forming Converters: Modeling, Controllability, and Full-State Feedback Design
论文作者
论文摘要
流行的单输入单输出控制结构和经典设计方法（例如，根源基因座分析）用于网格形成转换器的功率控制具有适用于不同线条特征并提供有利性能的局限性。本文从多输入多输出系统的角度研究了网格形成的转换器功率循环。首先，同时考虑了功率转换器模型的自然动态耦合项，与功率控制循环（基于错误的状态空间模型）相关的误差动力学。此后，研究了网格形成转换器功率循环的可控性图。最后，仅应用了使用本地测量值的全州反馈控制设计。这样，可以根据预定义的时域规格任意将系统特征值任意放置在功率循环的时间范围内。还给出了格式形成转换器的功率控制的逐步结构和设计程序。通过实验结果验证了分析和提出的方法。
The popular single-input single-output control structures and classic design methods (e.g., root locus analysis) for the power control of grid-forming converters have limitations in applying to different line characteristics and providing favorable performance. This paper studies the grid-forming converter power loops from the perspective of multi-input multi-output systems. First, the error dynamics associated with power control loops (error-based state-space model) are derived while taking into account the natural dynamical coupling terms of the power converter models. Thereafter, the controllability Gramian of the grid-forming converter power loops is studied. Last, a full-state feedback control design using only the local measurements is applied. By this way, the eigenvalues of the system can be arbitrarily placed in the timescale of power loops based on predefined time-domain specifications. A step-by-step construction and design procedure of the power control of grid-forming converters is also given. The analysis and proposed method are verified by experimental results.
