System for initializing a backup computer in a multiple computer electric power plant and turbine control system to provide turbine and plant operation with reduced time for backup computer availability
US4053747A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 6, 1973 |
| Grant date | Oct 11, 1977 |
| Priority date | — |
| Expiry date | Nov 6, 1993 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01K7/24
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An 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. In order to provide for making a noncontrolling computer available for control in a reliable and fast manner after it has been stopped for any reason, the system is arranged to structure the noncontrolling computer with certain initializing data over the data link. The initialization data includes turbine rotor stress calculated variables and other variables including …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.