论文标题
使用级联控制器的电力转换器的广义多变量网格形成控制的增强
Augmentation of Generalized Multivariable Grid-Forming Control for Power Converters with Cascaded Controllers
论文作者
论文摘要
电力转换器的网格形成控制策略的经典设计取决于对DC和AC状态之间的时间尺度分离及其相应的控制循环的严格假设，例如AC和DC循环，电源和级联电压和电流循环，等等。本文提出了基于基于多输入多输出的GRID-EFROMS EFFERTER（MIMO-GFM-GFM）乘以值的多输入多输入的结构。首先，MIMO-GFM控制通过一般的多变量控制传输矩阵将AC和DC循环融合在一起。然后，将参数设计转换为标准的固定结构H-侵点合成。这样，所有循环都可以同时和最佳地调整，而无需依赖循环解耦的假设。因此，可以实现卓越而强大的性能。实验结果验证了提出的方法。
The classic design of grid-forming control strategies for power converters rely on the stringent assumption of the timescale separation between DC and AC states and their corresponding control loops, e.g., AC and DC loops, power and cascaded voltage and current loops, etc. This paper proposes a multi-input multi-output based grid-forming (MIMO-GFM) control for the power converters using a multivariable feedback structure. First, the MIMO-GFM control couples the AC and DC loops by a general multivariable control transfer matrix. Then, the parameters design is transformed into a standard fixed-structure H-infinity synthesis. By this way, all the loops can be tuned simultaneously and optimally without relying on the assumptions of loop decoupling. Therefore, a superior and robust performance can be achieved. Experimental results verify the proposed method.
