Input voltage sharing control method of modularized combined direct-current converter
A DC converter and voltage equalization control technology, which is applied in the direction of converting DC power input to DC power output, control/regulation systems, instruments, etc., can solve the problems of unstable output characteristics of modular DC converters, and meet the requirements of modularization. Design needs, the effect of simple controller design
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[0037] Specific implementation mode one: combine figure 1 and figure 2 Describe this implementation mode, the input voltage equalization control method of the modularized combined DC converter described in this implementation mode, for such as figure 1 The input series output parallel DC converter system shown, u i i i Total input voltage and total input current, respectively, i o , u o are the system output voltage and output current respectively, u i1 ~ u iN i i1 ~i iN i o1 ~i oN are the input voltage, input current and output current of each module respectively, i c1 ~i cN Input voltage dividing capacitor current for each module respectively.
[0038] This embodiment is suitable for controlling the constant voltage output of the Input Series Out Parallel-ISOP combined converter system. For the ISOP system with constant voltage output, among the N modules in the system, the first module is set as the main module , the remaining modules are slave modules, such a...
specific Embodiment approach 2
[0047] Specific implementation mode two: combination figure 1 and image 3 Describe this embodiment, a method for controlling input voltage equalization of a modular combined DC converter described in this embodiment, this embodiment is suitable for controlling the constant current output of an input series output parallel (Input Series Out Parallel-ISOP) combined converter system , for the ISOP system with constant current output, among the N modules in the system, the first module is set as the master module, and the remaining modules are slave modules, such as image 3 As shown, each module includes a corresponding controller; the main module, that is, the first module adopts a current controller, and the output current i of the first module is o1 As feedback, 1 / N of the total output current is used as a given, and the output current of the first module is guaranteed to be 1 / N of the total current through the control function. The specific implementation method is:
[004...
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