Control Strategies used for a 3 Phase 4 Wire Topology for Transformerless Grid Tied Inverter
Three different current control strategies which are PI-controller in dq0-reference frame, PID controller and
hysteresis controller for a three-phase-four-wire solar inverter. We discussed in this paper and compared concerning their
influences on the grid harmonics, and the resulting power losses in the power devices. In this paper we discuss about the PIcontroller
in dq0-reference frame, PID controller and hysteresis controller.
Keywords - Photovoltaic, dq0, 3 Phase 4 Wire, Three-Phase-Four-Wire.