Water turbine generator set speed regulator water head adaptive function control system
A technology for generator sets and control systems, applied in hydropower, engine components, machines/engines, etc., can solve problems affecting the safe and stable operation of the power grid, out-of-control units, non-compliance, etc., to ensure system adjustment accuracy and reliability, avoid The large deviation of water head prevents the effect of untimely water head
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Embodiment 1
[0021] see Figure 1-2 , the present invention provides a technical solution: a water head adaptive function control system for the governor of a hydroelectric generator set, including a computer monitoring system 1, a water level measurement screen 2, a governor system 3, A water level detection group 4 and a B water level Detection group 5, A water level detection group 4 has four built-in water level gauges, and the corresponding B water level detection group 5 has built-in four water level gauges, and the signal transmission ends of A water level detection group 4 and B water level detection group 5 are connected to water level measurement screen 2 ; The water level measuring screen 2 and the governor system 3 are respectively connected with the computer monitoring system 1 through the A0 hardware line, and the computer monitoring system 1 has a built-in dam area LCU, a host computer and each unit LCU; A water level detection group 4 has four built-in The water level gauge...
Embodiment 2
[0041] Dam area LCU program optimization:
[0042] In the PLC program of the dam area, add the virtual switch value "water head signal failure, please check", and when one of the water head signals fails, the switch value will be used to alarm; the PLC of the LCU in the dam area sends the calculated water head 1 and calculated water head 2 sent by the water level measurement screen For processing, add two buffer areas for calculating the water head, store the correct water head value in the buffer each time, when there is a problem with the calculated water head 1 or calculated water head 2 sent from the water level measurement screen, automatically send the last correct value from the buffer area head value;
Embodiment 3
[0044] Improvement and optimization of computer monitoring system 1 transformation logic:
[0045] Added automatic water head feedback measuring point, which is used for the receiver group to feed back the automatic water head signal forwarded by the host computer;
[0046] Create a new host computer water head measurement value forwarding governor system script; introduce the governor water head sending value measurement point and automatic water head feedback measurement point into the script, and calculate and verify the intermediate amount of water head forwarding;
[0047] Add automatic water head forwarding measurement point; assign the intermediate water head forwarding value to the newly added water head forwarding measurement point (virtual AO), and send the unit LCU in the form of a message;
[0048] The PLC program adds a program section for processing water head signals; the unit LCU processes the received water head forwarded measured values, converts them into an...
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