Abstract
Be graduation practice's turn to have filled up pressure type water supply equipment work to environmental protection , energy conservation , automation introduce that. The frequency conversion speed regulation technology having set off from energy conservation science and technology practice , expounding hits the target in high building water supply equipment applying。Introduced the intelligent hydraulic pressure control system principle of work and the PLC control system. In in the analysis hydraulic pressure control work flow foundation, has produced the PLC control system hardware and the software design. The intelligent hydraulic pressure control system basic control strategy is: Uses the electric motor speeder and the programmable controller (PLC) constitutes the control system, carries on the optimized control,Completes the water supply pressure the constant control, when pipe network current capacity change achieved the stable water supply pressure and saves the electrical energy the goal. The system control goal is the pumping station main pipe water leakage pressure, the system hypothesis carries on the comparison for the hydraulic pressure value and the feedback main pipe pressure actual value, after its interpolation inputs CPU operation processing, sends out the control command, the control pumps the electric motor to throw transports the Taiwan number and the movement variable displacement pump electric motor rotational speed, thus achieved stabilizes for the water main pipe pressure in hypothesis Pressure.
关键词:
恒压供水，可编程序控制器、压力传感器、变频器PID运算、PLC控制、恒压供水。
Keyword:
PLC control the FX2N-PLC programmable、Pressure sensor 、Frequency transformer PID arithmetic、PLC controlled 、The constant voltage supplies water。
