Speed-no-load stability analysis and instability mitigation measure of pumped storage powerplant

Zhe Liu, Xiaodong Yu, Yi Liu, Hui Xu, Jian Zhang, National Key Laboratory of Water Disaster Prevention, Hohai University, College of Water Conservancy and Hydropower Engineering, Hohai University

Journal of Vibration and Control

Published online on May 19, 2025

Abstract

Journal of Vibration and Control, Ahead of Print.
Stability of the speed-no-load (SNL) is significant to the synchronization of pumped storage powerplants (PSPs). However, unstable hydraulic vibration phenomena always happen in SNL due to the pump turbine’s S-shaped characteristics. This article proposes ...