A Port-Hamiltonian Control Framework to Render a Power Electronic System Passive

• 成果类型: Article
• 署名作者: Zhong, Qing-Chang; Stefanello, Marcio
• 署名单位: Illinois Institute of Technology; Universidade Federal do Pampa
• 刊物名称: IEEE TRANSACTIONS ON AUTOMATIC CONTROL
• ISSN/ISSBN: 0018-9286
• DOI: 10.1109/TAC.2021.3069389
• 发表日期: 2022
• 页码: 1960-1965
• 关键词: Power electronics; Power system stability; Load modeling; Synchronous machines; Stability criteria; Frequency control; Voltage control; Distributed generation; Passivity; port-Hamiltonian (PH) systems; power electronic converter; virtual synchronous machine (VSM)

摘要

In this article, a control framework is proposed to render a power electronic system passive by adopting the port-Hamiltonian (pH) systems theory. The system has a power electronic converter, either grid-tied or islanded. The control framework consists of a lossless interconnection block and three control channels. It makes the power converter behave as a virtual synchronous machine (VSM). The three channels are designed to, respectively, generate the frequency and the flux of the VSM and a third quantity that is necessary for forming the lossless interconnection. It is proven that the closed-loop system is passive without the need of assuming constant frequency, constant voltage, and/or constant loads. It is sufficient to only assume that the load can be described as a passive pH model. Hence, the proposed control framework is very generic.