Altenergy Power System, Inc.

Zhimin Ling

Yuhao Luo

A distributed photovoltaic system includes N first photovoltaic modules each configured to convert solar energy into direct current power, N energy storage modules, and N inverters. Output terminals of the N first photovoltaic modules are connected to input terminals of the N energy storage modules in one-to-one correspondence. Output terminals of the N energy storage modules are connected to first input terminals of the N inverters in one-to-one correspondence. Output terminals of the N inverters are connected in parallel at a joint connected to a power grid or load. That is, a single energy storage module is connected to a single photovoltaic module and a single inverter, so that the single energy storage module is small in capacity and low in power. In addition, different energy storage modules are scattered.

Distributed photovoltaic energy system

This invention provides a solar photovoltaic system, comprising: a plurality of photovoltaic assemblies, for harvesting solar energy to generate DC currents; a plurality of micro-optimizers having input terminals coupled to the photovoltaic assemblies and having output terminals connected in series with each other, for optimizing output currents and/or output voltages of the photovoltaic assemblies, to generate maximum power; a manager configured to communicate with the plurality of micro-optimizers, for managing operating states of the micro-optimizers; and an inverter coupled to one or more strings of the micro-optimizers, for converting the optimized DC currents into AC currents and outputting the AC currents to a power grid. This invention further provides a method for energy harvest optimization and a method for fault detection of a solar photovoltaic system.

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Zhejiang, China

Zhimin Ling