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Rekursiv identifiering av dynamiska egenskaper för stabilitetsmonitering

Abrahamsson, Per and Hallgren, Peter (1991) In MSc Theses
Department of Automatic Control
Abstract
Identification of process dynamics is used for stability monitoring in nuclear reactors (Boiling Water Reactor). This report treats the problem of estimating a damping factor and a resonance frequency from the neutron flux as measured in the reactor. A new parametric online method for identification is derived and presented, and is shown to meet the requirements of stability monitoring. The technique for estimating the process parameters is based on a recursive lattice filter algorithm. The problem of time varying parameters and offset, as well as offline experiments and signal processing are treated. All parts are implemented in a real-time program, using the language C. In comparison with earlier identifications, the new way of... (More)
Identification of process dynamics is used for stability monitoring in nuclear reactors (Boiling Water Reactor). This report treats the problem of estimating a damping factor and a resonance frequency from the neutron flux as measured in the reactor. A new parametric online method for identification is derived and presented, and is shown to meet the requirements of stability monitoring. The technique for estimating the process parameters is based on a recursive lattice filter algorithm. The problem of time varying parameters and offset, as well as offline experiments and signal processing are treated. All parts are implemented in a real-time program, using the language C. In comparison with earlier identifications, the new way of estimating the damping factor is shown to work well. Estimates of both the damping factor and the resonance frequency show a stable and realible behavior. Future developments and improvements are also indicated. (Less)
Please use this url to cite or link to this publication:
author
Abrahamsson, Per and Hallgren, Peter
supervisor
organization
year
type
H3 - Professional qualifications (4 Years - )
subject
publication/series
MSc Theses
report number
TFRT-5439
ISSN
0280-5316
language
Swedish
id
8849202
date added to LUP
2016-03-25 21:12:20
date last changed
2016-03-25 21:12:20
@misc{8849202,
  abstract     = {Identification of process dynamics is used for stability monitoring in nuclear reactors (Boiling Water Reactor). This report treats the problem of estimating a damping factor and a resonance frequency from the neutron flux as measured in the reactor. A new parametric online method for identification is derived and presented, and is shown to meet the requirements of stability monitoring. The technique for estimating the process parameters is based on a recursive lattice filter algorithm. The problem of time varying parameters and offset, as well as offline experiments and signal processing are treated. All parts are implemented in a real-time program, using the language C. In comparison with earlier identifications, the new way of estimating the damping factor is shown to work well. Estimates of both the damping factor and the resonance frequency show a stable and realible behavior. Future developments and improvements are also indicated.},
  author       = {Abrahamsson, Per and Hallgren, Peter},
  issn         = {0280-5316},
  language     = {swe},
  note         = {Student Paper},
  series       = {MSc Theses},
  title        = {Rekursiv identifiering av dynamiska egenskaper för stabilitetsmonitering},
  year         = {1991},
}