A General Single-Sensor Damping Framework for <i>LCL</i>-Equipped High-Speed PMSM Drives
Yu Yao, Yunkai Huang, Fei Peng, Jianning Dong, Zichong Zhu
Abstract
This letter proposes a general single-sensor active damping framework for <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LCL</i> -equipped high-speed permanent magnet synchronous machines. By the proposed method, arbitrary damping assignment and stability for the <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LCL</i> resonance within the Nyquist frequency are achieved with only the inverter-current feedback or motor-current feedback. Moreover, the simplified analytical expression between the physical parameters and the damping performance enables automatic tuning for different drive systems.