Results 231 to 240 of about 576,632 (313)

Nonautonomous Linear Hamiltonian Systems: Oscillation, Spectral Theory and Control

2016
This book is devoted to a study of the oscillation theory of nonautonomous linear Hamiltonian systems and that of a spectral theory adapted to such systems. Some methods of topological dynamics and ergodic theory, including Lyapunov exponents, exponential dichotomies, and rotation numbers are applied to this study.
JOHNSON, RUSSELL ALLAN, Obaya, Rafael, Novo, Sylvia, Nunez, Carmen, FABBRI, ROBERTA   +4 more
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Hamiltonian structures in optimal control theory

Journal of Dynamical and Control Systems, 1995
This paper deals with a systematic exposition of the principal results of the theory of piecewise smooth Hamiltonian systems. The invariant formulation of the maximum principles provides an interpretation of the extremals of a controlled dynamical system as integral trajectories of a piecewise smooth Hamiltonian system.
A. Pukhlikov
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On the use of Hamiltonian and maximized Hamiltonian in nondifferentiable control theory

Journal of Optimization Theory and Applications, 1985
In optimal control problems involving nondifferentiable functions of the state variable, the adjoint differential inclusion can be formulated by either use of the Hamiltonian or the maximized Hamiltonian. In this paper, we solve a production-employment model in which the latter approach must be utilized, since the former does not enable one to ...
Feichtinger, G., Hartl, R.
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Hamiltonian theory based coordinated nonlinear control of generator excitation and STATCOMs

North American Power Symposium 2010, 2010
A coordinated controller for generator excitation and STATCOMs is studied based on the Hamiltonian function method. The Hamiltonian realization structure for multimachine power systems including STATCOMs is developed leading to a proposed coordinated scheme of excitation control and STAT-COM control.
null Keyou Wang, Mariesa L. Crow
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Nonlinear Robust Control of Dual-Excited Hydroturbine Generator based on Hamiltonian Energy Theory

2007 IEEE International Conference on Control and Automation, 2007
Based on Hamiltonian energy theory, this paper proposes a water-gate and excitation controller for dual-excited synchronous generator driven by hydroturbine, such that both the rotor angle and voltage can achieve their stability. The system consists of a hydraulic turbine and a synchronous generator and is described by a sixth-order model.
null Bing Wang, null Haibo Ji, null Xunming Li   +2 more
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Nonlinear Control of SVG Based on Hamiltonian Energy Theory

Applied Mechanics and Materials, 2013
Establish the practical mathematic model of Synchronous Generator in the static var generator (SVG) of single machine infinite bus power system. Based on Hamiltonian energy theory, the new nonlinear controller is designed between the SVG which is installed in the bus voltage of system and synchronous machine excitation. This controller directly use the
Yun Bing Wei, Wei Jie Yang
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Energy-Shaping Control of PM Synchronous Motor Based on Hamiltonian System Theory

2005 International Conference on Electrical Machines and Systems, 2005
A novel speed control method of permanent magnet synchronous motor (PMSM) is developed when load torque is known and unknown. A PCH model of PMSM is established based on the theory of port-controlled Hamiltonian (PCH) systems with dissipation. The nonlinear controller is designed by the way of energy shaping method. The load torque observer is added to
null Haisheng Yu, null Hailiang Wang, null Keyou Zhao   +2 more
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Nonlinear disturbance attenuation excitation control of structure preserving power systems based on hamiltonian theory

IEEE Power Engineering Society General Meeting, 2005, 2005
A novel nonlinear disturbance attenuation control scheme based on Hamiltonian theory for the solution of structure preserving multi-machine power systems is proposed in this paper. The dissipative Hamiltonian realization of structure preserving power system is completed using the singular perturbation approach in which the algebraic equations are ...
null Jin Hao, null Libao Shi, null Jie Wang, null Chen Chen   +3 more
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Decentralized Hamiltonian control of isolated AC microgrids: Theory & design

2015 IEEE Innovative Smart Grid Technologies - Asia (ISGT ASIA), 2015
Microgrids technology is the cornerstone of smart grid, the electricity network of the future. Based on distributed generation, microgrids can contribute to increase the penetration rate of renewable energy resources and hence reduce costs and gas emissions.
Mohamed Toub, Ghassane Aniba, Mohamed Maaroufi, Rush D. Robinet   +3 more
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Control Strategy of the DC Drive Systems Based on the State Error Port-Hamiltonian Theory

Applied Mechanics and Materials, 2013
A novel state error port-controlled Hamiltonian (PCH) system method is presented for speed control the direct current (DC) separately excited motor. The unity power factor regulation of three phase pulse width modulated (PWM) rectifier is also implemented.
Bing Qiang Shan, Hai Sheng Yu, Zhao Bo Teng, Ning Zhu   +3 more
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