Methods and devices for controlling a high-voltage generator

A control device of a high voltage generator, comprising:

• an outer loop control circuit, wherein an input end of the outer loop control circuit is connected to an output end of the high voltage generator, and the outer loop control circuit is configured to sample a current output voltage of the high voltage generator, and determine an outer loop control parameter based on the current output voltage and a target output voltage;
• at least one stage of inner loop control circuit, wherein a first input of the at least one stage of inner loop control circuit is connected to at least one internal circuit module of the high voltage generator, a second input of a first stage of inner loop control circuit in the at least one stage of inner loop control circuit is connected to the outer loop control circuit, a second input of any inner loop control circuit other than the first stage of inner loop control circuit is connected to a previous stage of inner loop control circuit;
• the at least one stage of inner loop control circuit is configured to sample one or more internal physical parameters corresponding to the at least one internal circuit module, and determine one or more inner loop control parameters corresponding to the at least one internal circuit module based on the one or more internal physical parameters and the outer loop control parameter;
• wherein one or more value ranges of the one or more inner loop control parameters is dynamically determined using a range determination model based on the one or more internal physical parameters or the target output state, an input of the range determination model includes the one or more internal physical parameters or the target output state, and an output of the range determination model includes the one or more value ranges corresponding to the one or more inner loop control parameters;
• wherein the control device is configured to determine a closed loop control parameter based on the one or more inner loop control parameters to control the high voltage generator.

A non-transitory computer-readable storage medium for storing computer instructions, wherein a processor, when performing at least a portion of the computer instructions, implement a method comprising:

• obtaining a current output voltage and a target output voltage of the high voltage generator;
• determining an outer loop control parameter based on the current output voltage and the target output voltage;
• obtaining one or more internal physical parameters of the high voltage generator, wherein the one or more internal physical parameters correspond to at least one internal circuit module of the high voltage generator;
• determining one or more inner loop control parameters based on the one or more internal physical parameters and the outer loop control parameter, wherein one or more value ranges of the one or more inner loop control parameters are dynamically determined based on the one or more internal physical parameters or a target output state;
• and
• determining a closed loop control parameter based on the one or more inner loop control parameters to control the high voltage generator.