Medium voltage direct current is emerging in distribution and collection networks and the network codes are under construction. This article introduces the MVDC network fault ride-through (FRT) requirement and the response of a DC solid state transformer is analyzed. A novel control of the DC SST suitable in the MVDC PV collection network is proposed. The controls of the boost MPPT converter and the isolated DC-DC converter include a normal operation mode and an FRT mode without any additional hardware circuit components. The performance of the proposed solution is demonstrated in simulation.