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IDA-PBC controller design for grid connected Front End Converters under non-ideal grid conditions

机译：非理想电网条件下用于并网前端转换器的IDA-PBC控制器设计

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A passivity-based non-linear controller design for three-phase front-end converters used to connect renewable energy sources to the grid is proposed in this paper. The control objective is to inject all the generated power to the grid, while adjusting the reactive power exchanged with the power system. Besides, generated currents must have very low distortion, in order to satisfy the standards, even when grid voltages are distorted or unbalanced. The proposed controller is first designed using the Interconnection and Damping Assignment strategy, which allows obtaining controller parameters while ensuring the closed-loop system stability. In order to ensure that the output currents have very low harmonic distortion, the obtained control laws are modified based on the fundamental positive sequence grid voltage, obtained from a positive sequence detector. The proposal allows controlling both injected powers and DC-link voltage, from a unique controller design. Simulation and experimental results are presented to validate the proposed controller. (C) 2016 Elsevier B.V. All rights reserved.
机译：本文提出了一种基于无源的非线性控制器，用于三相前端转换器，用于将可再生能源连接到电网。控制目标是将所有产生的功率注入电网，同时调整与电力系统交换的无功功率。此外，即使当电网电压失真或不平衡时，所产生的电流也必须具有非常低的失真，以满足标准。首先使用互连和阻尼分配策略设计提出的控制器，该策略可以在确保闭环系统稳定性的同时获取控制器参数。为了确保输出电流具有非常低的谐波失真，将根据从正序检测器获得的基本正序电网电压对获得的控制律进行修改。该提议允许通过独特的控制器设计来控制注入功率和直流母线电压。仿真和实验结果被提出来验证所提出的控制器。 （C）2016 Elsevier B.V.保留所有权利。

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