Current Control Methodologies for Energy Storage Devices

Systems, methods and software products for operating circuit with energy storage module (ESM). The methods comprising: providing, at input port, an input voltage (IV); providing, via PWM, counter voltage (CV); converting, via inductor, a difference between IV and CV to module current (MC) which charges or discharges ESM; providing reference waveform signal (RWS); generating error signal (ES) by combining MC measurement with RWS; applying, to ES, a transfer function (TF) to obtain correction signal (CS); generating control signal (CS) by combining CS with IV measurement; and using CS to govern MC's instantaneous value. TF may comprise: first gain component (FGC) having a higher than first-order low-pass response with a first corner frequency (CF), and a first low-frequency (DC) gain value; a second gain component acting parallelly to FGC and having a second low-frequency (DC) gain value; and a unit gain response providing a gain between TF's input and output.