The present utility model discloses a photovoltaic system. The photovoltaic system is connected with an electrical network and is composed of n photovoltaic group strings, n DC EMC filters, an inverter, an LCL filter, an AC main contactor, an AC EMC filter, an AC circuit breaker and an AC lightning protection device, wherein n is an integral number not less than 1, the n photovoltaic group strings are respectively connected with input ends of the n DC EMC filters, output ends of the n DC EMC filters are respectively and successively connected with the inverter, the LCL filter, the AC main contactor, the AC EMC filter and the AC circuit breaker; and the other end of the AC circuit breaker is connected with the electrical network. In the system, solar energy photovoltaic generating electric energy generated by a photovoltaic array can be sent to the electrical network through the inverter, the electrical network is adopted as a storage system, power is supplied to the system, an electric energy source structure of the electrical network can be improved, the solar energy photovoltaic generating electric energy can be fully utilized as a kind of clean energy, pollution can be reduced, and the system is simple in structure, high in reliability and easy to popularize.