Method and device for controlling constant-diameter growth of monocrystal silicon and storage medium

A device for controlling constant-diameter growth of monocrystalline silicon, wherein the device for controlling constant-diameter growth of monocrystalline silicon comprises a processor and a memory, the memory stores at least one computer instruction, and the computer instruction is loaded and executed by the processor to implement the steps of:

• acquiring PID initial values of an i-th cycle period, wherein the PID initial values include an initial value of a proportion component P, an initial value of an integration component I and an initial value of a differentiation component D, and i≥1;
• correcting the PID initial values of the i-th cycle period, and obtaining PID corrected values of the i-th cycle period, wherein the PID corrected values include a corrected value of the proportion component P, a corrected value of the integration component I and a corrected value of the differentiation component D;
• and
• according to the PID corrected values of the i-th cycle period, controlling a crystal growth diameter of the i-th cycle period.

A computer-readable storage medium, wherein the storage medium stores at least one computer instruction, and the computer instruction is loaded and executed by a processor to implement the steps of:

• acquiring PID initial values of an i-th cycle period, wherein the PID initial values include an initial value of a proportion component P, an initial value of an integration component I and an initial value of a differentiation component D, and i≥1;
• correcting the PID initial values of the i-th cycle period, and obtaining PID corrected values of the i-th cycle period, wherein the PID corrected values include a corrected value of the proportion component P, a corrected value of the integration component I and a corrected value of the differentiation component D;
• and
• according to the PID corrected values of the i-th cycle period, controlling a crystal growth diameter of the i-th cycle period.