The present invention relates to an alternative power generation system, comprising a portable electricity harvesting device for generating electrical power, a power unit coupled to said portable electricity harvesting device including circuitry for processing electrical power generated by said portable electricity harvesting device and storing said electrical power in a battery within said power unit, and a plurality of distribution components in electrical communication with said power unit and a plurality of devices to be electrically powered.

The present invention relates to an alternative power generation system, comprising a portable electricity harvesting device for generating electrical power, a power unit coupled to said portable electricity harvesting device including circuitry for processing electrical power generated by said portable electricity harvesting device and storing said electrical power in a battery within said power unit, and a plurality of distribution components in electrical communication with said power unit and a plurality of devices to be electrically powered.

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 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.

Embodiments of the present invention comprise two or more distinct solar power systems associated with a single residence or building that together form an aggregate solar power system. Advantageously, high draw appliances can be distributed among the different systems such that the high current draw of one appliance on a first system will not negatively impact the high current draw of another high draw appliance on a second system.

Embodiments of the present invention comprise two or more distinct solar power systems associated with a single residence or building that together form an aggregate solar power system. Advantageously, high draw appliances can be distributed among the different systems such that the high current draw of one appliance on a first system will not negatively impact the high current draw of another high draw appliance on a second system.

A converter includes a power conversion circuit, a switching device, and a controller, and includes N phases, where N is 2 or 3. An input end of the power conversion circuit is connected to a direct current power supply, and the power conversion circuit converts a direct current output by the direct current power supply into an alternating current. The switching device includes at least the following two stages: a first-stage switching device and a second-stage switching device. The first-stage switching device and the second-stage switching device separately include N switches, and the N switches are connected in series to the N phases respectively. An output end of the power conversion circuit is connected to an alternating current power grid through the first-stage switching device and the second-stage switching device that are connected in series.

A converter includes a power conversion circuit, a switching device, and a controller, and includes N phases, where N is 2 or 3. An input end of the power conversion circuit is connected to a direct current power supply, and the power conversion circuit converts a direct current output by the direct current power supply into an alternating current. The switching device includes at least the following two stages: a first-stage switching device and a second-stage switching device. The first-stage switching device and the second-stage switching device separately include N switches, and the N switches are connected in series to the N phases respectively. An output end of the power conversion circuit is connected to an alternating current power grid through the first-stage switching device and the second-stage switching device that are connected in series.

Photovoltaic (PV) assemblies and modules comprising electronic component docking assemblies are described herein. Docking assemblies can comprise a junction box and an electronic component housing configured to be reversibly connected or “docked.” The photovoltaic assemblies and modules described herein facilitate field replacement or removal of electronic components e.g. microinverters from a corresponding module and/or junction box. Additionally, the photovoltaic docking assemblies described herein enable PV modules and arrays with minimal cables and wiring for electrical interconnection.

Photovoltaic (PV) assemblies and modules comprising electronic component docking assemblies are described herein. Docking assemblies can comprise a junction box and an electronic component housing configured to be reversibly connected or “docked.” The photovoltaic assemblies and modules described herein facilitate field replacement or removal of electronic components e.g. microinverters from a corresponding module and/or junction box. Additionally, the photovoltaic docking assemblies described herein enable PV modules and arrays with minimal cables and wiring for electrical interconnection.