In recent years, many kinds of renewable-energy solutions, such as wind, power, and photovoltaic energy, have attracted much attention as well as the distributed power grids into which they are integrate. These systems have a highly reliable power supply. However, to connect DC buses to other devices, many isolated converters are require to ensure isolation from the DC bus. Isolation is essential for safety purposes. However, the use of many isolated converters is not preferable because of problems with the increasing system size. Triple action bridge (TAB) converters have the features of bidirectional power flow and small size, which is suitable for integration into distributed power grids. TAB converters that are based on dual active bridge (DAB) converters have useful characteristics of DABs. However, there remains a problem with respect to the interaction between two current loops with TABs, and there are few solutions to this problem when an AC supply is connected to the system. In order to enable the connection from a TAB converter to an AC system, this paper proposes a method to solve the interference problems in the circuit and control. The suitability of the propose solution is shown using simulations.