CONTROLLER AND POWER MANAGEMENT METHOD FOR COMPOSITE POWER SYSTEM

Abstract: a controller and a power management method for a composite power system including first and second energy storage devices are provided. the controller includes: a computing circuit that generates a management function, receives a power demand command from the composite power system to obtain a current demand power, and provides an operating time constant corresponding to a minimum input power based on the current demand power and current socs of the first and second energy storage devices; a low-pass filter circuit that extracts a low-frequency part of the power demand command based on the operating time constant; and a power control circuit that subtracts the low-frequency part from the power demand command to extract a high-frequency part of the power demand command and controls the first and second energy storage devices to provide first and second electric energies in response to the low-frequency part and the high-frequency part.

Inventor(s): Syuan-Yi Chen, Chih-Ting Wu, Chi-Cheng Chen, Hsiu-Hsien Su, Shang-Zeng Huang

CPC Classification: H02J3/322 (using batteries with converting means)

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