“…In this case, an information about the power angle reference, ref δ , is required. To overcome this restriction, in (Loukianov et al, 2006) a decentralized robust sliding mode control scheme was proposed to regulate the voltages and stabilize the speed in a multi machine power system. In this paper an eighth order model for each generator of the multimachine power systems is considered.…”
Section: Wwwintechopencommentioning
confidence: 99%
“…Then, the dynamics for terminal voltage, gi v can be obtained from (61), (62), (6), and (7) as (Loukianov, et al, 2006) (,) (,, )…”
“…In this case, an information about the power angle reference, ref δ , is required. To overcome this restriction, in (Loukianov et al, 2006) a decentralized robust sliding mode control scheme was proposed to regulate the voltages and stabilize the speed in a multi machine power system. In this paper an eighth order model for each generator of the multimachine power systems is considered.…”
Section: Wwwintechopencommentioning
confidence: 99%
“…Then, the dynamics for terminal voltage, gi v can be obtained from (61), (62), (6), and (7) as (Loukianov, et al, 2006) (,) (,, )…”
“…On the other hand, based on the eighth order model, a sliding mode controller was proposed for single machine infinite-bus system in [10]. Then, in [11] a decentralized sliding mode control scheme was designed for multimachine power systems based on the eighth order model of each generator in the system. However this controller is robust under matched perturbations only.…”
A sliding mode decentralized excitation controller for multimachine power systems is designed to stabilize the power angle and regulate the terminal generators voltages. First, the block control approach is used to derive a nonlinear sliding manifold, on which the mechanical dynamics are linearized. Then, a combination of the integral and nested sliding mode techniques is applied to reject both the matched and unmatched perturbations. The designed controller was tested through simulation of WSCC (Western System Coordinating Council) under small and large perturbations. The presented simulations confirm effectiveness of the proposed controller.
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