State space representation of atmospheric fluidized bed lignite combustor dynamics.

Umay, Mehmet Kadri


State Space Representation of Smart Structures Under Unsteady Aerodynamic Loading
Fatih Mutlu, Karadal; Güçlü, Seber; Şahin, Melin; Volkan, Nalbantoğlu; Yaman, Yavuz (null; 2007-09-10)
This study presents a technique for the state space representation of the aeroelastic models of smart structures. It was based on a rational approximation of the unsteady aerodynamic loads in the Laplace domain, which yielded state-space matrix equations of motion with constant coefficients. In this study, an aluminum plate-like structure with twenty-four surface bonded piezoelectric patches was considered. The unsteady aerodynamic loads acting on the structure were calculated for a range of reduced freque...
State estimation based determination of harmonic current contributions of iron and steel plants supplied from PCC
Sezgin, Erhan; Göl, Murat; Salor, Özgül (2015-10-22)
In this paper, a state estimation based method is proposed to determine harmonic current contributions of iron and steel (I&S) plants supplied from a Point of Common Coupling (PCC). Due to highly nonlinear nature of the iron and steel plant operation, accurate estimation of the harmonic contributions of the individual plants is essential. In the proposed method, the nonlinear characteristics of the plants and the utility are modeled as harmonic current sources and the harmonic current contributions of loads...
State estimation techniques for speed sensorless field oriented control of induction motors
Akın, Bilal; Ersak, Aydın; Department of Electrical and Electronics Engineering (2003)
This thesis presents different state estimation techniques for speed sensorlees field oriented control of induction motors. The theoretical basis of each algorithm is explained in detail and its performance is tested with simulations and experiments individually. First, a stochastical nonlinear state estimator, Extended Kalman Filter (EKF) is presented. The motor model designed for EKF application involves rotor speed, dq-axis rotor fluxes and dq-axis stator currents. Thus, using this observer the rotor spe...
State estimation of transient flow in gas pipelines by a Kalman filter-based estimator
Durgut, İsmail; Leblebicioğlu, Mehmet Kemal (2016-09-01)
In this study, real-time estimation of flow rate and pressure along natural gas pipelines under transient flow condition is aimed. The estimation of the internal states of gas pipelines is based on a recursive discrete data filtering algorithm called the discrete Kalman filter. The state space representation of the transient flow in gas pipelines, which is required for the filtering algorithm, is established by a discrete form of the nonlinear partial differential equations (PDE's) describing the characteri...
State estimation in electrical power systems.
Civanlar, Seyhan; Department of Electrical Engineering (1980)
Citation Formats
M. K. Umay, “State space representation of atmospheric fluidized bed lignite combustor dynamics.,” Middle East Technical University, 1996.