A parameter tuning method based on particle swarm algorithm pid separation
A particle swarm algorithm and parameter tuning technology, which is applied in the direction of electric speed/acceleration control, etc., can solve the problems of multi-time, waste, and difficult PID parameters, so as to improve efficiency, save time, and ensure the effect of normal operation.
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[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0032] Such as figure 1 Shown, the steps of the present invention are as follows:
[0033] Step 1: Initialize and set the particle number n of the particle swarm, the inertia coefficient w, and the acceleration coefficient a 1 and a 2 , the maximum number of iterations m of the particle, the initial velocity v, the spatial component position of each particle and the initial value of the PID corresponding to each particle;
[0034] Step 2: Substitute the PID value corresponding to each particle in the particle swarm into the speed controller of the AC motor, such as figure 2 shown. Calculate and get the corresponding objective function value f, f=∫t|s-s ref |dt, where, s is the measured speed of the motor, s ref is the expected speed, and t is the time.
[0035] Step 3: Update the individual optimal particle position and the global optimal partic...
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