Control reconfiguration: Difference between revisions

Revision as of 22:59, 19 August 2012

Revision as of 21:10, 24 September 2012

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'''Control reconfiguration''' is an active approach in [[control theory]] to achieve [[Fault-Tolerant Control|fault-tolerant control]] for [[dynamic systems]].<ref>{{Harv|Blanke|Kinnaert|Lunze|Staroswiecki|2006}}</ref>. It is used when severe [[Fault (technology)|faults]], such as actuator or sensor outages, cause a break-up of the [[control loop]], which must be restructured to prevent [[failure]] at the system level. In addition to loop restructuring, the [[Controller (control theory)|controller]] parameters must be adjusted to accommodate changed plant dynamics. Control reconfiguration is a building block toward increasing the [[dependability]] of systems under [[feedback]] control.<ref>{{Harv|Patton|1997}}</ref>

== Reconfiguration problem ==

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# Stabilization

# Equilibrium recovery

# Output trajectory recovery

# State trajectory recovery

# Transient time response recovery

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== Reconfiguration approaches ==

=== Fault hiding ===

[[Image:FaultHiding with Goals.png|frame|Fault hiding principle. A reconfiguration block is placed between faulty plant and nominal controller. The reconfuigured plant behaviour must match the nominal behaviour. Furthermore, the reconfiguration goals are pointed out.]]

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| journal=International Journal of Control

| title=Reconfigurable control system design using eigenstructure assignment: static, dynamic and robust approaches

| volume=78 | number=13 | pages=1005-10161005–1016}}.

[[Category:Control theory]]