Electric power plant having a multiple computer system for redun

Details Electric power plant having a multiple computer system for redun Electric power plant having a multiple computer system for redun

1973-11-06

1977-06-14

Wise, Edward J.

Registers

Transfer mechanism

Traveling pawl

290 40R, 60645, 415 15, 444 1, F01D 1702, G05B 1500, G06F 1506

Patent

active

040299520

ABSTRACT:
The electric power plant including a steam generator and a steam turbine is operated by a control system including two redundant digital computers. Switching circuitry is provided for coupling one of the computers through interface equipment to the steam generator and the turbine and a generator according to programmed computer control. A data link is established between the computers to transfer manual/automatic status and other needed data from the control computer to the standby computer. A system is provided for detecting when certain hardware and software malfunctions have occurred and for responsively transferring control to the standby computer. The standby computer is tracked to the control computer so that control computer transfer can be made reliably without disturbing the electric power generation process.

REFERENCES:
patent: 3552872 (1971-01-01), Biras et al.
patent: 3555251 (1971-01-01), Shavit
patent: 3561216 (1971-02-01), Moore, Jr.
patent: 3564273 (1971-02-01), Cockrell
patent: 3588265 (1971-06-01), Berry
Application of the Prodac 50 System to Direct Digital Control. J. C. Belz, G. J. Kirk & P. S. Radcliffe, IEEE Intl. Conv. Rec. Part 3, 1965, pp. 102-122.
Monitoring and Automatic Control in Steam Power Stations by Process Computer, E. Doetsch & G. Hirschberg, Siemens Review XXXV(1968) No. 12, pp. 471-476.

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