基于LQR的三有源桥变换器控制
摘要：摘要针对三有源桥变换器解耦控制中工况远离稳态点解耦矩阵变化时控制性能较差的问题,提出一种基于线性二次型调节器（LQR）的三有源桥变换器控制方法。通过电路等效变换和端口功率传输方程建立状态空间模型,进一步设计基于状态反馈的LQR控制方法,在实现功率潮流控制的同时保持端口电压的稳定,通过仿真控制验证所提出方法的控制性能,对比传统PI解耦控制,在工况变化时,该控制方法具有更好的动态性能。
Abstract:：To improve the dynamic performance in the decoupling control of triple-active bridge converter when the working condition is far from the operating point and the decoupling matrix changes, a control method of triple-active bridge based on linear quadratic regulator (LQR) is proposed. The state-space model is established by circuit equivalent transformation and power transmission equation among each port, and the LQR control method based on state feedback is further designed to control the power flow while maintaining the stability voltage of each port irrespective of the operating point. The control performance of the method proposed in this paper is verified by simulation control. Compared with traditional PI decoupling control, the proposed method has better control performance when working conditions change.
中文标题：基于LQR的三有源桥变换器控制
英文标题：Linear Quadratic Regulator Control of Triple-Active Bridge Converter
发表时间：2023-03-08
作者：
解非, 王浩, 舒杰
作者简介：
解非（1997-）,男,硕士研究生,主要从事智能微电网技术中的电力电子研究。舒 杰（1969-）,男,博士,研究员,主要从事分布式可再生能源发电、智能微电网技术研究。
关键词：三有源桥变换器,解耦控制,状态空间方程,线性二次型调节器,
Key words：triple-active bridge converter,decoupling control,state-space equation,linear quadratic regulator,
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