Quick setting circuit based on fuzzy control strategy

Abstract

The invention discloses a quick setting circuit based on a fuzzy control strategy. The quick setting circuit based on the fuzzy control strategy comprises an input variable module, a fuzzy controllerand an output variable module; the input variable module has a set voltage value; the fuzzy controller converts a set voltage value into the fuzzy quantity; the obtained fuzzy control quantity is converted into the precise control quantity through a fuzzy algorithm; a measurement module and four fuzzy control modules are included, respectively including a first F-PID control circuit in power steady-output control, a second F-PID control circuit for protecting a first signal, a third F-PID control circuit for protecting a second signal, and a fourth F-PID control circuit for protecting a thirdsignal; each fuzzy control module has switching control; the output variable module comprises a power amplification module and a power output module connected with the power amplification module in series; and the measurement module measures the output power of the power amplification module, and feeds back a voltage signal to the first F-PID control circuit. The PID parameter range can be rapidlydetermined; and the setting time is reduced.

Description

technical field [0001] The invention belongs to the field of radio technology, in particular to a fast setting circuit based on a fuzzy control strategy. Background technique [0002] PID (proportional-integral-derivative) control algorithm is a control algorithm with simple structure, reliable operation and convenient adjustment. It is one of the most important control methods for various industrial process control. Adjustments are made, a process known as tuning. In the control circuit of the radio frequency generator, the power output adopts the PID hardware closed-loop control method. At the same time, in order to ensure the reliability of the power output process, multiple PID control loops are used in the control loop for coordinated control. Different PID control loops Realize current protection, voltage protection, high temperature protection and other functions, but because the response time of different protection circuits is different, the proportional, integral ...

AI Technical Summary

Problems solved by technology

[0003]The essence of fuzzy control is a kind of nonlinear control. The main difficulty is that it needs to accumulate a large amount of debugging background based on the original system control method, and the debugging results Organized into a fuzzy control rule base, the rule base is the core of fuzzy control, so the disadvantage of this method is that it is not suitable for initial debugging or personnel without debugging background

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