Power Leveling in the Parallel Work of Modular Energy Sources

摘要

Currently, the source of desired power is assembled by parallel connection of the modules. The complexity of such an approach is nonidentity of modules and supply rails connecting them. Alignment of module currents via resistors and inductors results in significant energy losses in them. Active alignment methods also have disadvantages. At the same time, active-inductive resistances of the current supply rails can be used as the leveling elements. The existence of inductive load component reduces the active power level, the stronger, the higher load time constant and higher frequency is. The possibility of using a separate timing for modular power supplies to align their produced power is pointed. An estimated expression between the PWM modulation parameters and electrical parameters of current leads with static regulating characteristic is obtained.