A system includes: an edge computing device disposed in an indoor facility having at least one light source; an energy storage subsystem configured to generate electrical power from light emitted by the at least one light source, and to supply the electrical power to the edge computing device, the energy storage subsystem including: a collector; an auxiliary energy storage device configured to receive energy collected by the collector, the auxiliary energy storage device having a first storage capacity; a main energy storage device having a second storage capacity greater than the first storage capacity; a controller configured to supply energy from the main energy storage device to the edge computing device; and a selector configured to selectively discharge energy from the auxiliary energy storage device to the main energy storage device.

A power converter analog chip includes a sampling circuit configured to collect electrical parameters of the power converter; a maximum power point tracking circuit configured to perform maximum power point tracking based on the input power or the output power obtained by the electrical parameters, and to obtain an adjustment signal; a rapid shutdown circuit configured to, when receiving a rapid shutdown instruction sent from the outside of the analog chip, generate a rapid shutdown signal; a protection circuit, configured to, when an electrical parameter of the power converter exceeds a first preset threshold, generate a protection signal and send the protection signal to the multiplexer; and a multiplexer configured to select one of the rapid shutdown signal, the protection signal, or the adjustment signal as a control signal, to control a power component in the power converter.

The present disclosure is directed to an energy management system that allows leveraging DC energy at user premises. The system allows for use of local or remote DC energy generated by photovoltaic modules or a battery pack. The system comprises a premises electricity network interface arranged to deliver and draw energy to and from a premises electricity network; a premises energy measurement module arranged to measure the amount of energy required by the premises electricity network; a DC energy input arranged to receive energy from one or more DC energy sources; and an energy analytics module arranged to receive data from the energy measurement module and, based on the received data, calculate an amount of energy to be delivered to the premises electricity network via the premises electricity network interface.

The present disclosure is directed to an energy management system that allows leveraging DC energy at user premises. The system allows for use of local or remote DC energy generated by photovoltaic modules or a battery pack. The system comprises a premises electricity network interface arranged to deliver and draw energy to and from a premises electricity network; a premises energy measurement module arranged to measure the amount of energy required by the premises electricity network; a DC energy input arranged to receive energy from one or more DC energy sources; and an energy analytics module arranged to receive data from the energy measurement module and, based on the received data, calculate an amount of energy to be delivered to the premises electricity network via the premises electricity network interface.

An energy harvester is provided. The energy harvester includes a current-voltage converter, a voltage-PWM converter, an analog multiplier, a sample-hold circuit, an α-generator, and a fractional open-circuit voltage circuit.

An energy harvester is provided. The energy harvester includes a current-voltage converter, a voltage-PWM converter, an analog multiplier, a sample-hold circuit, an α-generator, and a fractional open-circuit voltage circuit.

The present invention relates to an optimizer, for a solar string power generation system, comprising an Injection Circuit (IC), connected to at least one string, from an array of strings of solar panels, wherein the output of said IC is connected to the DC bus of the solar inverter. The IC comprises: (i) an MPPT mechanism, for finding the MPP of the connected string; (ii) a DC/DC converter, for converting part of the power of said connected string; wherein the DC/DC converter, converts only a part of the power of the string, that is connected to the IC, when the string is impaired, for compensating for the relative voltage difference between the voltage MPP, of the impaired string, and the MPP voltage of the DC bus of the solar inverter and the array of strings.

A wireless photovoltaic power system is provided. The wireless photovoltaic power system includes photovoltaic cell units that provide power. Each of the photovoltaic cell units include a photovoltaic cell. The wireless photovoltaic power system includes a first wireless power device that receives the power. The first wireless power device includes a coil that provides a magnetic field to wirelessly transfer the power to a second wireless power device. The first wireless power device provides a combinational implementation of a maximum power point tracking of the photovoltaic cell units and a power control of a load.

A wireless photovoltaic power system is provided. The wireless photovoltaic power system includes photovoltaic cell units that provide power. Each of the photovoltaic cell units include a photovoltaic cell. The wireless photovoltaic power system includes a first wireless power device that receives the power. The first wireless power device includes a coil that provides a magnetic field to wirelessly transfer the power to a second wireless power device. The first wireless power device provides a combinational implementation of a maximum power point tracking of the photovoltaic cell units and a power control of a load.

A microinverter for photovoltaic power generation includes a photovoltaic power generation system using the same, and a solar cell panel array integrated with the microinverter for photovoltaic power generation. The microinverter for photovoltaic power generation may include a case lower plate formed in a plate shape; a case cover configured to cover the case lower plate; and a substrate installed on the case lower plate.