Method for establishing one-tube multi-machine differential equation model through multi-machine form of tunnel and surge shaft
A differential equation model, surge well technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as inconvenience in hydraulic transient applications
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[0057] The layout and basic parameters of the hydraulic system of a power station are as follows: water is the water inlet and the surge shaft is a diversion tunnel with a diameter of 8 meters and a length of 932 meters; the height of the surge shaft is 65.8 meters and the inner diameter is 13 meters; The first penstock is 517 meters long and the second one is 490 meters long. The ends are divided into two bifurcated pipes with a diameter transitioning from 3.2 meters at the entrance to 2.2 meters to connect 4 turbines. In the simulation, No. 1 and No. 2 units share one common pipe, and No. 3 and No. 4 units share another common pipe.
[0058] Turbine parameters: H r =312m, Q r =53.5m 3 / s,P r = 150MW, n r =333.3rpm, tunnel flow inertia time constant T w =3.24376(s), surge well parameters: C s =774.06(s).
[0059] The turbine governor adopts a typical parallel PID structure, and the control parameters are: K p =5.0,K D =1.5,K I =2.5, bp=0.04, the execution cycle of t...
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