Active Damping: An H-infinity Model Reference Approach

作者：Perez Jorge; Cobreces Santiago^*; Grino Robert; Huerta Francisco; Rodriguez Sanchez Francisco J

来源：IEEE Transactions on Power Electronics, 2018, 33(8): 7260-7272.

DOI：10.1109/TPEL.2017.2762469

• Power converter
• current control
• H-infiinty control
• robustness

This paper focuses on the design of an active-damping controller that shapes the dynamics of an LCL grid connected voltage source converter (VSC) to mimic an L-filter connected VSC. This makes possible to use simpler classical proportional plus resonant or proportional plus integral controllers design methods to regulate the grid current with minimum penalties in both performance and stability margins. The active-damping design follows a model-reference approach and is synthesized through a (sub)optimal H-infinity algorithm. The controller uses the grid current and point of common coupling voltage, although it allows the selection of a different set of measurements. Effectiveness of the method is demonstrated with time- and frequency-domain experimental results.

• 出版日期2018-8