Office photovoltaic direct-current power supply system and control method

The invention discloses an office photovoltaic direct-current power supply system and a control method. The office photovoltaic direct-current power supply system comprises a PV module, a control panel, a power amplifier board and a storage battery module, wherein the PV module serves as a power supply unit, and is connected with a direct-current bus through a first DC/DC converter, the storage battery module is connected with the direct-current bus through a second DC/DC converter, the direct-current bus is connected with a lighting device, and further provides electricity for a corresponding direct-current load and an alternating-current load through a third DC/DC converter and a DC/AC converter, and the control panel adjusts the corresponding PV module and the storage battery module according to the detected direct-current bus. According to the office photovoltaic direct-current power supply system and the control method, stability of the direct-current voltage can be achieved, the stable direct current and the stable alternating current can be output, and when the office photovoltaic direct-current power supply system is used in a office place with centralized direct-current loads, use efficiency of electric energy can be hopefully improved, and the high practical value is achieved.