Method for compensating current reconstruction error of power conversion system using single current sensor and power conversion system therefor

A power conversion system comprising:

• a voltage command generator configured to apply a voltage command to an inverter;
• a current sensor configured to measure a DC-link current flowing through a DC side of the inverter;
• and
• a phase current reconstruction unit configured to reconstruct a phase current on the basis of the DC-link current, and
• wherein the phase current reconstruction unit comprises a current restoration error compensator configured to compensate for a current reconstruction error by replacing a zero vector section with an active vector section, while maintaining symmetry of a switching waveform for a plurality of switching elements included in the inverter, and reconstructing an average current.