Real-time on-line identification of a nonlinear continuous-time plant using Hartley modulating functions method

2005 ◽  
Author(s):  
S. Daniel-Berhe
Keyword(s):  
Real Time ◽  
Continuous Time ◽  
Line Identification ◽  
On Line ◽  
Modulating Functions

scholarly journals On-line Identification of Furnace Parameters for Coal-Fired Boiler Control

1999 ◽  
Vol 11 (5) ◽  
pp. 374-379 ◽  
Author(s):  
Yukio Fukayama ◽  
◽  
Kotaro Hirasawa ◽  
Katsumi Shimohira ◽  
Toshikazu Tsumura ◽  
...  
Keyword(s):  
Continuous Time ◽  
Numerical Stability ◽  
Mass Conservation ◽  
Dynamics Model ◽  
Extended Kalman Filtering ◽  
Power Station ◽  
Fuel Flow ◽  
Line Identification ◽  
Heating Surfaces ◽  
On Line

A new identifier for furnace parameters on control coalfired boilers fuel ratio dominating coal burning speed and slagging factor influencing the heat resistance on heating surfaces was applied to a 1000MWe power station. The identifier is based on the Extended Kalman Filtering on a nonlinear boiler dynamics model including energy and mass conservation laws in continuous time with seeking parameters fluctuated as the Brownian motion. The identifier refers to not only measured gas and water temperature at boilers (observable) but also actual fuel flow of each burner (manipulation) for the guidance to plant operators to cope with parameter fluctuation. Due to numerical stability, the identifier uses both Pade (1,1) approximation for time discretizing and U-D factorization for calculating the covariance matrix.

scholarly journals On-Line Impact Load Identification

2013 ◽  
Vol 20 (1) ◽  
pp. 123-141 ◽  
Author(s):  
Krzysztof Sekuła ◽  
Cezary Graczykowski ◽  
Jan Holnicki-Szulc
Keyword(s):  
Real Time ◽  
Impact Load ◽  
Research Area ◽  
Impact Loads ◽  
Load Identification ◽  
Line Identification ◽  
On Line ◽  
Smart Technologies ◽  
Measured Response ◽  
Impact Absorption

The so-called AdaptiveImpact Absorption(AIA) is a research area ofsafety engineeringdevoted to problems of shock absorption in various unpredictable scenarios of collisions. It makes use ofsmart technologies(systems equipped with sensors, controllable dissipaters and specialised tools for signal processing). Examples of engineering applications for AIA systems are protective road barriers, automotive bumpers or adaptive landing gears. One of the most challenging problems for AIA systems is on-line identification of impact loads, which is crucial for introducing the optimum real-time strategy of adaptive impact absorption. This paper presents the concept of animpactometerand develops the methodology able to perform real-time impact load identification. Considered dynamic excitation is generated by a massM1impacting with initial velocityV0. An analytical formulation of the problem, supported with numerical simulations and experimental verifications is presented. Two identification algorithms based on measured response of the impacted structure are proposed and discussed. Finally, a concept of the AIA device utilizing the idea ofimpactometeris briefly presented.

scholarly journals Real Time FFT Based On-line Identification of Power System Oscillation Modes

2000 ◽  
Vol 120 (2) ◽  
pp. 134-140 ◽  
Author(s):  
Naoto Suzuki ◽  
Takashi Hiyama ◽  
Takahiko Funakoshi
Keyword(s):  
Power System ◽  
Real Time ◽  
Line Identification ◽  
Oscillation Modes ◽  
On Line
Sign in / Sign up

Export Citation Format

Share Document