Active parallel type hybrid energy storage system and working method thereof
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An active parallel type hybrid energy storage system is characterized by comprising a storage battery energy storage unit, a super capacitor energy storage unit, a bi-directional power flow converter unit, a DSP control unit and an energy storage grid-connected current converter unit. A working method of the active parallel type hybrid energy storage system comprises the steps of rectification, conversion distribution, energy absorption and DSP control distribution. The active parallel type hybrid energy storage system and the working method of the active parallel type hybrid energy storage system have the advantages that fluctuating power output by a wind power plant is quickly and accurately adjusted in real time, high power density, high energy density and the long cycle life are achieved, accurate energy distribution is achieved, and the reliability of the control system is improved.