Method for compensating digital control delay of magnetic bearing switch power amplifier
A digital control, magnetic bearing technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problems of high current noise, increase of extra computing resources, low tracking accuracy, etc.
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[0094] Such as figure 1 As shown, in the specific implementation process, the specific implementation steps of the present invention are as follows:
[0095] (1) Measure the total digital control system delay T of the magnetic bearing switching power amplifier d :
[0096] T d =T ad +T cal +T awa +0.5T c
[0097] Among them, T ad Indicates the AD sampling delay of the power amplifier system, T cal Indicates the calculation delay, T awa Indicates PWM waiting delay, T c Indicates the servo cycle of the system. T ad It can be obtained by multiplying the delay time of each sampling channel by the total number of sampling channels; the calculation delay can be directly obtained through testing; T awa according to the formula Calculated, where T p Represents the switching cycle of the power amplifier system, and the symbol "rem" represents the remainder operation after division.
[0098] (2) Under the condition that the maglev rotor bears radial load and falls on t...
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