Control system, method and non-transitory computer readable storage medium thereof for two-phase converter module

A control method for two-phase converter module, comprising:

• sampling, by a control unit, a total output voltage of the two-phase converter module, a first output voltage and a first output current of a first converter of the two-phase converter module, and a second output voltage and a second output current of a second converter of the two-phase converter module;
• receiving and basing on, by a master control loop, the total output voltage, the first output voltage, the first output current, the second output voltage and the second output current, to obtain a master control output value, and convert, by the master control loop, the master control output value to a switching period;
• receiving and basing on, by a balance control loop, the first output voltage, the first output current, the second output voltage and the second output current, wherein, when the two-phase converter module is in a parallel mode, the balance control loop outputs a balance control output value based on the first output current and the second output current, or when the two-phase converter module is in a series mode, the balance control loop outputs the balance control output value based on the first output voltage and the second output voltage, wherein a first phase shift angle and a second phase shift angle are calculated by the balance control loop based on the balance control output value;
• and
• calculating, by the control unit, PWMs of switches of, the first converter and the second converter of the two-phase converter module based on the switching period, the first phase shift angle or the second phase shift angle.

A non-transitory computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by an electronic device, cause the electronic device to perform following operations:

• sampling, by a control unit, a total output voltage of the two-phase converter module, a first output voltage and a first output current of a first converter of the two-phase converter module, and a second output voltage and a second output current of a second converter of the two-phase converter module;
• receiving and basing on, by a master control loop, the total output voltage, the first output voltage, the first output current, the second output voltage and the second output current, to obtain a master control output value, and convert, by the master control loop, the master control output value to a switching period;
• receiving and basing on, by a balance control loop, the first output voltage, the first output current, the second output voltage and the second output current, wherein, when the two-phase converter module is in a parallel mode, the balance control loop outputs a balance control output value based on the first output current and the second output current, or when the two-phase converter module is in a series mode, the balance control loop outputs the balance control output value based on the first output voltage and the second output voltage, wherein a first phase shift angle and a second phase shift angle are calculated by the balance control loop based on the balance control output value;
• and
• calculating, by the control unit, PWMs of switches of, the first converter and the second converter of the two-phase converter module based on the switching period, the first phase shift angle or the second phase shift angle.