Double-channel cross redundancy system for digital microcomputer governor of large-scale hydroturbine
A redundant system and water turbine technology, applied in the direction of machines/engines, fluid pressure actuation system components, mechanical equipment, etc., can solve the problem of limited safe operation of water turbines, achieve strong fault tolerance and improve reliability
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[0012] The microcomputer regulator automatically adjusts the main channel + the mechanical hydraulic system automatically adjusts the main channel Implementation method:
[0013] 1>. Automatic main channel: the microcomputer regulator automatically adjusts the main channel 1. The control core adopts dual PLCs that can work independently, with adaptive variable parameter PID adjustment rules, programmable controller (microcomputer regulator A in figure 1 The label in is 5 and the microcomputer regulator B is in figure 1 The label in 6) adopts: Quantum programmable controller of Schneider Company, CPU model is 140CPU43412A type, word length is 32 bits, main frequency is 66MHz, and it is installed in the speed control cabinet. Each microcomputer regulator has independent CPU, I / 0 channel, sensor, frequency measurement and power supply
[0014] The mechanical hydraulic system automatically adjusts the main channel by BOSCH proportional servo valve 13, emergency stop solenoid valv...
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