Model-free prediction current control method based on super-local model
A local model and current prediction technology, applied in the field of super-local model design strategy, can solve the problems of optimal voltage vector deviation, affecting the overall control performance of the motor, etc., and achieve the effect of improving robustness
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[0040] The following examples can make those skilled in the art understand the present invention more fully, but do not limit the present invention in any way. The experimental methods in the following examples are conventional methods unless otherwise specified.
[0041] figure 1 It is a model-free predictive current control block diagram. According to the input and output of the controlled system, a hyperlocal model of the controlled system is established, and the superlocal model is estimated by differential algebra. In this process, only the input and output data of the controlled system are used without any Parameter information, so it has strong robustness, and combined with indirect field oriented control to realize the model-free current control of asynchronous motor, so as to improve the robustness of MPC to motor parameters.
[0042] Step 1: Simplify the asynchronous motor into a single-input single-output (SISO) system, which is approximately described by ordinary ...
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