Patent ID: 8766584
Filing Date: 2014-07-01
Classification: G01R,H02M,H02P

Abstract:
1. A method for managing a current on a conductor linking a DC bus of a power management module and a DC bus of at least one remote inverter module, wherein the current includes at least one harmonic component, comprising the steps of: sampling at a first sampling rate an amplitude of the current present on the DC bus of the power management module with a current sensor; determining a root mean square (rms) value of the current sampled at the first sampling rate; comparing the rms value of the current sampled at the first sampling rate against a first threshold; generating a first output signal if the rms value of the current sampled at the first sampling rate is greater than the first threshold and resetting the first output signal if the rms value of the current sampled at the first sampling rate is less than the first threshold; sampling the amplitude of the current present on the DC bus of the power management module at a second sampling rate slower than the first sampling rate; determining a root mean square (rms) value of the current sampled at the second sampling rate; and generating a second output signal corresponding to a utilization rate of the DC bus of the power management module as a function of the rms value of the current sampled at the second sampling rate.