This paper proposes an effective control synthesis strategy to stabilize grid forming converters in the presence of disturbances. The conventional control system for a grid forming converter is based on paralleled and cascaded proportional‐integral (PI) controllers, which are widely used in the industry due to their simplicity and reliability. However, the sequential adjustment of PI gains in different control loops, without consideration of dynamic interconnections limits their performance and capability. To address this limitation, the present paper introduces a control design method based on static output feedback theory. The proposed control scheme reduces the dynamic control design problem to an effective gain scheduling problem. In the proposed methodology, without removing the existing practical control structure, its dynamic parts are moved to the open‐loop system, and simultaneous scheduling of all remaining control gains is achieved during one control design process. MATLAB simulations were conducted to evaluate the performance of the designed control system, and compare it with the conventional control one in terms of step response characteristics. The results demonstrate the superiority of the proposed controller, ensuring system stability and exhibiting improved performance. The proposed control framework provides several advantages, including keeping stability in various disturbance conditions, simultaneous tuning of all control parameters, and no need to change the existing simple control structure. © 2024 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.

中文翻译：

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网格形成转换器控制系统综合：静态输出反馈方法

本文提出了一种有效的控制综合策略，以在存在干扰的情况下稳定并网转换器。并网变流器的传统控制系统基于并联和级联比例积分（PI）控制器，由于其简单性和可靠性而在业界广泛使用。然而，在不考虑动态互连的情况下，在不同控制环路中顺序调整 PI 增益会限制其性能和能力。为了解决这一局限性，本文介绍了一种基于静态输出反馈理论的控制设计方法。所提出的控制方案将动态控制设计问题简化为有效的增益调度问题。在所提出的方法中，在不删除现有实际控制结构的情况下，将其动态部分移至开环系统，并在一个控制设计过程中实现所有剩余控制增益的同时调度。通过MATLAB仿真评估了所设计的控制系统的性能，并与传统控制系统的阶跃响应特性进行了比较。结果证明了所提出的控制器的优越性，确保了系统稳定性并表现出改进的性能。所提出的控制框架具有多种优点，包括在各种干扰条件下保持稳定性、同时调整所有控制参数，并且无需改变现有的简单控制结构。 © 2024 日本电气工程师协会。由 Wiley 期刊有限责任公司出版。