Control of Hybrid Energy Storage System for High Pulse Load

摘要

A HESS and method of controlling a HESS is provided. The HESS may comprise a common DC bus having a DC bus voltage, an energy storage device electrically coupled to the common DC bus, a power device electrically coupled to the common DC bus, and a controller in operable communication with the energy storage device, the power device and the common DC bus. The controller may be configured to, when the energy storage device is charging, increase a power device charging current if an energy storage device charging current is greater than a charging limit for the energy storage device, and when the energy storage device is discharging, increase a power device discharging current if an energy storage device discharging current is greater than a discharging limit for the energy storage device. The HESS may be part of a power system.

主权项

1. A HESS comprising:
a common DC bus having a DC bus voltage; an energy storage device electrically coupled to the common DC bus; a power device electrically coupled to the common DC bus; and a controller in operable communication with the energy storage device, the power device and the common DC bus, the controller configured to:
when the energy storage device is charging, increase a power device charging current if an energy storage device charging current is greater than a charging limit for the energy storage device; andwhen the energy storage device is discharging, increase a power device discharging current if an energy storage device discharging current is greater than a discharging limit for the energy storage device.