SYSTEMS AND METHODS TO SAMPLE CURRENT MEASUREMENTS IN ENERGY STORAGE DEVICES

摘要

Systems and methods to sample current measurements in energy storage assets while reducing bias errors such as aliasing are provided. One example current sampling system includes an integrator circuit that receives the current signal as an input and integrates the current signal to output a charge signal. The current signal is indicative of a current at an energy storage asset of an energy storage system. The current sampling system includes a charge signal sampler circuit that samples the charge signal at a charge signal sampling rate. The current sampling system includes a differentiator circuit that receives the samples of the charge signal from the charge signal sampler circuit and differentiates the samples of the charge signal to output an anti-aliased current signal.

主权项

1. A current sampling system to de-alias a current signal, comprising:
an integrator circuit that receives the current signal as an input and integrates the current signal to output a charge signal, wherein the current signal is indicative of a current at an energy storage asset of an energy storage system; a charge signal sampler circuit that samples the charge signal at a charge signal sampling rate; and a differentiator circuit that receives the samples of the charge signal from the charge signal sampler circuit and differentiates the samples of the charge signal to output an anti-aliased current signal.