Microinverter systems and subsystems
An alternating current (AC) module system includes branch circuits and a main service panel to receive power from the branch circuits. A photovoltaic (PV) supervisor is located between the branch circuits and the panel. The PV supervisor aggregates the power from the branch circuits. The PV supervisor also performs a nonredundant operational function for one or more of the branch circuits. The PV supervisor includes a gateway device to permit control of the operational functions.
1. A photovoltaic (PV) microinverter system comprising:
a service panel comprising a bus bar and a plurality of circuit breakers electrically connected to the bus bar;
a PV controller electrically connected to the service panel;
a first plurality of PV modules, each PV module of the first plurality comprising a microinverter, at least one of the PV modules of the first plurality electrically connected to the PV controller,
wherein the PV controller is configured to control operation functions of at least one of the PV modules of the first plurality,
wherein the electrical connection between the service panel and the PV controller is configured to transport aggregated power from the first plurality of PV modules, and,
wherein the PV controller is further configured to provide power from the first plurality of PV modules to the service panel, through the PV controller.
2. The photovoltaic microinverter system of claim 1 wherein the PV controller is further configured to provide power from the service panel, through the PV controller, and to the first plurality of PV modules.
3. The photovoltaic microinverter system of claim 1 further comprising:
a second plurality of PV modules, each PV module of the second plurality comprising a microinverter, at least one of the PV modules of the second plurality electrically connected to the PV controller.
4. The photovoltaic microinverter system of claim 1 wherein functions of the PV modules from the first plurality of PV modules are consolidated in the PV controller.
5. The photovoltaic microinverter system of claim 1 wherein PV controller is configured to perform surge protection for each of the PV modules in the first plurality of PV modules.
6. The photovoltaic microinverter system of claim 1 wherein the PV controller is coupled to a wireless communication antenna.
7. The photovoltaic microinverter system of claim 1 wherein the operation functions comprise housekeeping power supply.
8. A photovoltaic system comprising:
a mains service panel comprising a bus;
a PV controller electrically connected to the service panel;
a first string of PV modules, each PV module of the first string comprising a microinverter, at least one of the PV modules of the first string electrically connected to the PV controller,
wherein the PV controller is configured to control operation functions of at least one of the PV modules of the first string,
wherein the electrical connection between the service panel and the PV controller is configured to transport aggregated power from the first string of PV modules, and
wherein the PV controller is further configured to provide power from the first string of PV modules to the service panel, through the PV controller.
9. The photovoltaic system of claim 8 wherein the first string of PV modules reside on a shared branch circuit and wherein the PV controller is further configured to provide power from the service panel, through the PV controller, and to the first string of PV modules.
10. The photovoltaic system of claim 8 further comprising:
a second string of PV modules, each PV module of the second string comprising a microinverter, at least one of the PV modules of the second string electrically connected to the PV controller.
11. The photovoltaic system of claim 8 wherein functions of the PV modules from the first string of PV modules are consolidated in the PV controller.
12. The photovoltaic system of claim 8 wherein PV controller is configured to perform surge protection for each of the PV modules in the first string of PV modules.
13. The photovoltaic system of claim 8 wherein the PV controller is coupled to a wireless communication antenna.
14. The photovoltaic system of claim 8 wherein the operation functions comprise a housekeeping power supply.
15. A photovoltaic controller comprising:
a bus;
a gateway electrically connected to the bus;
a main line service panel connection;
logic circuitry, the logic circuitry electrically coupled to the bus; and
a first PV module cable connection, the cable connection electrically coupled to the main line service panel connection,
wherein the logic circuitry is configured to control operational functions of a plurality of PV modules instead of these operational functions being performed at the plurality of PV modules,
wherein the main line service panel connection is connected and sized to
transport aggregated power from a plurality of PV modules, and
wherein the main line service panel connection is sized and connected to provide power from the main service panel and to a plurality of PV modules.
16. The photovoltaic controller of claim 15 further comprising a second PV module cable connection, the cable connection electrically coupled to the main line service panel connection.
17. The photovoltaic controller of claim 15 wherein operational functions of PV modules comprise surge protection.
18. The photovoltaic controller of claim 15 further comprising a wireless communication antenna coupled to the logic circuitry.
19. The photovoltaic controller of claim 15 wherein operational functions of PV modules comprise a housekeeping power supply.
20. The photovoltaic controller of claim 15 wherein the bus, gateway, and logic circuitry are located in the same housing.