Achieving Maximum Efficiency in Three-Phase Systems With a Shunt Active Power Compensator Based on IEEE Std. 1459

IEEE Standard 1459–2000 establishes that in an efficient electrical system, only the fundamental positive-sequence active power must be present. This paper proposes a new set of reference currents based on the IEEE Standard 1459–2000 for the control of a three-branch four-wire shunt active power compensator. Reactive, unbalance, and harmonic distortion phenomena can be cancelled out upstream from the point of connection, achieving maximum efficiency of the three-phase four-wire electrical system. In addition, a new current control and a three-dimensional space vector pulsewidth-modulation technique are proposed to develop a shunt active power compensator. Simulation and experimental results demonstrate that the proposed shunt active power compensator improves the upstream electrical quality of the power network, achieving maximum efficiency according to IEEE Standard 1459–2000 specifications.