Title :
Fault tolerance of a multiprocessor-structured control system by reconfiguration, application to the control of electrical power converters
Author :
Wang, P. ; Aubry, J.F. ; Zanne, C. ; Iung, C.
Author_Institution :
CRAN-ENSEM, Nancy, France
Abstract :
A novel type of redundancy, pseudo-redundancy, for multiprocessor-structured control system of electrical power converters is presented. Pseudo-redundancy can be used to reduce the number of components required by classical redundancies if operating security is necessary. Some problems in using pseudo-redundancy are presented, including: choice of the downgraded programs from the beginning of the design of control systems; fault detection by microdiagnoses and validation of exchanged information; calculation of initializing values of the downgraded programs; and the reconfiguration device
Keywords :
fault tolerant computing; machine control; multiprocessing systems; power convertors; redundancy; downgraded programs; electrical power converters; fault detection; initializing values; microdiagnoses; multiprocessor-structured control system; operating security; pseudo-redundancy; reconfiguration device; validation; Circuit faults; Control systems; Design methodology; Digital control; Fault detection; Fault tolerant systems; Hardware; Power system security; Redundancy; Transducers;
Conference_Titel :
Industrial Electronics Society, 1990. IECON '90., 16th Annual Conference of IEEE
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-87942-600-4
DOI :
10.1109/IECON.1990.149169
