Development of Experimental Platform for Low-Power Photovoltaic Energy Storage Inverter System

Due to the uncertainty, intermittentness and instability of photovoltaic power generation, with the continuous promotion and application of energy storage system, the demand for energy storage inverter power supplies is also increasing. Compared with the single-function photovoltaic grid-connected inverter power generation system, the energy storage inverter system has more complicated circuit topologies, operating mode, energy control and system management due to the addition of energy storage links. In order to realize the faster and more efficient development of the energy storage inverter system, the universal modular storage inverter experimental development platform system can reduce the design difficulty of entire system, shorten the development cycle and reduce the research cost. A low-power photovoltaic energy storage system experimental development platform was designed in this paper, the architecture, circuit and composition of the experimental development platform were introduced in detail, adopting modular technical ideas and using digital control technology, which provides a platform and experimental support for the development of a new generation of energy storage system devices.