Residential electric distribution system based on Intelligent Power Switch

The Intelligent Power Switch (IPS) allows to control the energy flow in a residential electric distribution system and decreases intermittency that the integration of Renewable Energy Sources produces in a power grid. This paper presents the simulation analysis of different commutations' scenarios in the IPS to identify current and voltage characteristics in sources and loads. In addition, the use of optocouplers synchronized with the power grid and a dead-time, is proposed in order to enable a correct control of commutations between ports. Experimental results show that the proposed solution allows that commutations in the IPS have been performed properly to avoid short-circuit current in the system. Likewise, it is evident that the use of a dead-time between commutations is very important to avoid possible faults or connection mistakes between ports, it which may occur due to the phase difference between the power sources or the loads power factor.