| 摘要 |
The present invention relates to a power conditioning system for energy storage. It reduces the range of voltage variation and maintains system voltage to prevent the continuous resonance of frequency and system voltage due to the interference of an ESS-power conditioning system (PCS) and a squirrel cage induction machine, when there is a large load using the squirrel cage induction machine in a small system using an energy storage system (ESS). A power conditioning system according to the present invention includes a voltage compensator which corrects a voltage to output a constant voltage of constant frequency to an inputted power voltage; a pulse width modulation part which modulates a pulse width by using a space vector to the power of corrected voltage and outputs it; and a convertor which converts the pulse-width-modulated AC power into DC power. |
