Synergetic stabilization control strategy for suppressing the influence of single penstock multi-machine hydraulic coupling
WANG Fang-fang
ZENG Yun
GUO Zhi-cheng
QIAN Jing
Abstract：Aiming at the problem of insufficient multi-unit synergetic control under hydraulic coupling in the single penstock multi-machine system,this paper proposes a multi-unit synergetic calming control strategy based on synergetic control theory for establishing multi-unit linkage.First,the dynamic head-coupling change term of the shared pipeline is reconsidered,and the macro-variables containing the state variables of multiple units are constructed.The equilibrium point is preset by taking the output deviation of the main state variables of multi-unit as the control core.Then,the macro-variables are substituted into the control manifold to derive a new form of coupled head term,which transforms the original linear model into a nonlinear model to track the unit changes.By comparing the state outputs in the original form,it is verified that the proposed strategy performs well in reducing the output oscillations of the unit and enhancing the stability of the system's isolated network operation,which provides a feasible solution for the treatment of hydraulic coupling.
Keywords：single penstock multi-machine systemhydraulic couplingstabilization controlsynergetic controllerstate feedback
Publication Date：2026-01-30
Online Publishing Date：2026-02-05(First online date of this platform, not the publication date of the document)
Pages：10( 90-99 )