1、Product Overview

The STD PSI2 series optical storage inverter device mainly consists of AC power distribution, transformers, photovoltaic inverter DC/AC modules, energy storage DC/DC modules, monitoring systems, etc. It has high integration, convenient and flexible installation, and can efficiently utilize photovoltaic power generation, meeting the integrated application requirements of optical storage in small and medium-sized microgrids and industrial and commercial buildings.

2、Application Scenario

1）The energy of photovoltaics is preferentially stored in the battery, while the remaining electricity supplies power to the load. When the photovoltaic energy is insufficient, the energy storage battery supplies power to the load.

2） The photovoltaic energy shall be stored in the battery first, and the residual electricity shall supply power to the load. When the photovoltaic energy is insufficient, the load shall be supplied by the energy storage battery first, and then by the diesel generator when the energy is insufficient.

3）When the mains power is cut off, it automatically switches to off grid load mode to ensure that the load does not lose power, and supports off grid black start to ensure emergency load power supply.

3、System topology

4、Performance characteristics

1）Adopting a modular parallel design concept, providing N+1 redundancy, improving system stability, and facilitating installation and maintenance for easy expansion.

2）It can be directly connected to photovoltaic panels for charging, improving the stability of output current, and can also be applied to optical storage integrated machines to convert the energy output from photovoltaic into usable electricity in the power grid, improving economic benefits.

3）Adopting a two-stage topology, the battery voltage input range is wide.

4）Supporting grid connected and off grid operation, it can achieve automatic and seamless switching between grid connected and off grid states, ensuring the continuity of load power supply.

5）It can be connected to photovoltaic panels, supports direct charging of photovoltaic cells, and has MPPT photovoltaic maximum power tracking function.

6）The IP54 protection level design can support outdoor application scenarios.

7）Friendly human-machine operation interface, convenient and practical operation, and with remote data transmission function in the background.

5、Technical parameters