Keywords
PMSG; oscillation suppression; matching control; adaptive suppression
Abstract
The wideband power oscillation caused by the interaction between permanent magnet synchronous generators （PMSGs） and the AC system seriously threatens the safe and stable operation of the grid.In response to the problem that most existing oscillation suppression methods are designed for specific operating conditions and oscillation modes, and have insufficient wideband adaptability, this paper proposes a wideband oscillation suppression method for PMSGs based on additional matching control.This method first identifies the dominant sequence component of the system, and then generates an additional phase signal from the oscillation component of the DC bus voltage through an additional matching controller.Finally, the phase output by the phase-locked loop （PLL） is added to the output phase of the additional matching controller as the actual reference phase.The additional matching controller does not rely on specific models, parameters, and operating conditions.It has a simple structure and can be applied to oscillation suppression in different frequency bands and modes.Impedance analysis, eigenvalue analysis, and time-domain simulation have verified the oscillation suppression effect of the proposed method.The results show that the proposed additional matching control method can effectively suppress oscillations under different operating conditions.
DOI
10.19781/j.issn.1673-9140.2025.05.014
First Page
143
Last Page
154
Recommended Citation
JIANG, Yunlong; LI, Juan; LIU, Jian; SHI, Mingming; and ZHANG, Chenyu
(2025)
"Analysis of wideband oscillation of grid-connected PMSGs based on additional matching control and its adaptive suppression method,"
Journal of Electric Power Science and Technology: Vol. 40:
Iss.
5, Article 14.
DOI: 10.19781/j.issn.1673-9140.2025.05.014
Available at:
https://jepst.researchcommons.org/journal/vol40/iss5/14
