Parameter optimization method of hydraulic turbine speed control system based on satisfaction control
A speed regulation system and satisfactory control technology, which can be used in mechanical equipment, hydroelectric power generation, engine components, etc., and can solve problems such as optimization design difficulties.
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Embodiment 1
[0093] Example 1: Linear water hammer
[0094] System structure diagram such as figure 1 Shown. The known number of the system parameters obtained by measurement is: T w =3.0s, e=0.85, e qh = 0.4, e y = 1.1, e n = 1.5, T a =5.0s, T y =0.1s, b p = 0.02. Taking overall satisfaction as the fitness degree, using genetic algorithm, after 12 iterations, the overall satisfaction of the system reaches 1, such as Figure 5 . At this time, the speed control system parameter is T d = 0.88, b t = 0.8645, T n =5.9935.
[0095] Objective function For fitness, after 21 genetic iterations, J reaches the minimum, such as Image 6 , The speed control system parameter is T d =0.1, b t = 2.0935, T n = 5.6065. And the parameter calculated by pole placement method is: T d =3.8, b t = 1.04, T n = 2.2. Substitute these three sets of parameters into figure 1 The system is simulated and obtained as Figure 7 The curve shown. It can be seen from the above simulation results that, since the satisfacto...
Embodiment 2
[0096] Example 2: Non-linear rigid water hammer
[0097] Non-linear rigid water hammer model such as figure 2 Shown, the rest of the same figure 1 , The system parameter obtained by measurement is T w =2.3s, f p =0.01, A t =1.004, q nL =0.05, D=0.5, e n = 1.5, T a =5.0s, T y = 0.1s. Taking overall satisfaction as the fitness degree, using genetic algorithm, after 39 iterations, the overall satisfaction of the system reaches 1, such as Figure 8 . At this time, the speed control system parameter is T d =0.197, b t =1.7452, T n = 6.9. Objective function For fitness, after 50 genetic iterations, J reaches the minimum, such as Picture 9 , The speed control system parameter is T d = 0.8798, b t = 0.5572, T n =8.7977.
[0098] According to the data provided by IEEE, T is calculated d =0.75, b t = 0.64, T n = 5.92. Substitute these three sets of parameters into figure 2 The system is simulated and obtained as Picture 10 The curve shown. It can also be seen from the simulation r...
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