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控制理论与应用 2010
Dissipative Hamiltonian realization and feedback control of power systems with SVC and nonlinear loads
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Abstract:
Using the Hamiltonian function method, this paper investigates the feedback control of power systems with static var compensator(SVC) and nonlinear loads. First, based on the nonlinear differential algebraic model of power system, a dissipative Hamiltonian realization is proposed via pre-feedback control. Then, by making use of the Hamiltonian realization structure, an energy-based SVC controller is constructed by the means of damping injection. The proposed controller has the advantage of simple structure and clear physical meaning. Simulation result shows that the control scheme can effectively improve the transient stability of the power system.