Application of robust control to sustained oscillations in power systems

Robust control of multi-machine power systems with compensation of disturbances

“…Unlike [4][5][6]9,10] the synthesis of the control algorithm does not require measurement the state vector of each generators and knowledge of power system parameters. For control of power systems we need to measure only relative speed of each generator and to know the set of the possible values of power system parameters.…”

“…The proposed control strategies are linear and require only local relative angle and velocity measurements for the classical model case, plus the measurement of mechanical power if turbine dynamics are included. In [4] the authors show that the proposed algorithm ensures the exponential stability of the closed-loop system. The results are obtained without any linearization of the power system model.…”

“…There exist many methods and approaches for control of power systems. In [4] decentralized robust stabilization algorithm for power systems is proposed. Transient control of the sustained oscillations that can occur after a major disturbance to a power system is investigated.…”

Robust stabilization of nonlinear interconnected systems with application to an industrial utility boiler

“…Recently, there has been a strong research effort towards the development of decentralized robust control strategies, including decentralized turbine/governor control (Jain & Khorrami, 1997;Jiang, Chai, Dorsey, & Qu, 1997;Qu, Dorsey, Bond, & McCalley, 1992;Siljak et al, 2002;Wang, Hill, & Guo, 1998) and decentralized excitation control (Cai, Qu, & Dorsey, 1996;Chapman, Ilic, King, Eng, & Kaufman, 1993;Guo, Wang, & Hill, 2000;King, Chapman, & Ilic, 1994;Xie, Xie, Wang, & Guo, 2000;Zecevic et al, 2004). A linear feedback law based on the solution of parameterized Riccati equations for each subsystem was developed in Wang et al (1998).…”

Decentralized control of multimachine power systems

“…The recently proposed decentralized control strategies for multimachine power systems can be classified as decentralized turbine/governor control strategy [1], [2] and decentralized excitation control strategy [3], [4]. In [3], [5], [6], nonlinear control techniques were employed to improve the transient stability of power systems.…”