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A power management and distribution system may comprise a first plurality of power sources, a first collector bus configured to receive power from the first plurality of power sources, an unregulated DC bus configured to receive power from the first collector bus, a regulated high voltage direct cur

A power management and distribution system may comprise a first plurality of power sources, a first collector bus configured to receive power from the first plurality of power sources, an unregulated DC bus configured to receive power from the first collector bus, a regulated high voltage direct current (HVDC) bus configured to receive a first power from the unregulated DC bus, a first primary load bidirectional DC/DC converter configured to receive a second power from the unregulated DC bus, a first primary PDU configured to receive at least one of the first power from the regulated HVDC bus and the second power from the first primary load bidirectional DC/DC converter. The first primary PDU may be configured to supply power to a primary load such as a motor or actuator.

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1. A power management and distribution (PMAD) system, comprising: a first plurality of power sources comprising at least one of a first solar array, a first supercapacitor, and a first battery;a first collector bus configured to receive power from the first plurality of power sources;an unregulated

1. A power management and distribution (PMAD) system, comprising: a first plurality of power sources comprising at least one of a first solar array, a first supercapacitor, and a first battery;a first collector bus configured to receive power from the first plurality of power sources;an unregulated DC bus configured to receive power from the first collector bus;a regulated high voltage direct current (HVDC) bus configured to receive a first power from the unregulated DC bus;a first primary load bidirectional DC/DC converter configured to receive a second power from the unregulated DC bus;a first secondary power distribution unit (PDU) configured to receive the first power from the regulated HVDC bus; anda first primary PDU configured to receive at least one of the first power from the regulated HVDC bus and the second power from the first primary load bidirectional DC/DC converter,wherein the first primary PDU is configured to supply power to a primary load. 2. The PMAD system of claim 1, further comprising: a primary load HVDC bus configured to receive the first power from the regulated HVDC bus and supply the first power to the first primary PDU; anda supercapacitor electronically coupled to the primary load HVDC bus and configured to supply power to the primary load HVDC bus. 3. The PMAD system of claim 2, further comprising: a second plurality of power sources comprising at least one of a second solar array, a second supercapacitor, and a second battery;a second collector bus configured to receive power from the second plurality of power sources;a regulated low voltage direct current (LVDC) bus configured to receive a third power from the unregulated DC bus;a second primary load bidirectional DC/DC converter configured to receive a fourth power from the unregulated DC bus;a second secondary power distribution unit (PDU) configured to receive the third power from the regulated LVDC bus; anda second primary PDU configured to receive at least one of the third power from the regulated LVDC bus and the fourth power from the second primary load bidirectional DC/DC converter,wherein the unregulated DC bus is configured to receive power from the second collector bus. 4. The PMAD system of claim 3, further comprising a main load sharing regulator configured to regulate the power received by the first collector bus from the first plurality of power sources and configured to regulate the power received by the second collector bus from the second plurality of power sources. 5. The PMAD system of claim 4, wherein the first collector bus and the second collector bus are connected in parallel. 6. The PMAD system of claim 5, wherein the regulated HVDC bus is configured to receive power from the unregulated DC bus via: a first bidirectional DC/DC converter connected in series with a first intermediate regulated bus; anda second bidirectional DC/DC converter connected in series with a second intermediate regulated bus,wherein the first intermediate regulated bus and the second intermediate regulated bus are connected in parallel. 7. A power management and distribution (PMAD) system, comprising: a main load sharing regulator;a first collector bus in electronic communication with the main load sharing regulator;a first plurality of power sources configured to supply power to the first collector bus;an unregulated DC bus in electronic communication with the first collector bus and configured to receive power from the first collector bus;a first bidirectional DC/DC converter in electronic communication with the unregulated DC bus;a second bidirectional DC/DC converter in electronic communication with the unregulated DC bus;a first intermediate load sharing regulator in electronic communication with the first bidirectional DC/DC converter and the second bidirectional DC/DC converter, the first intermediate load sharing regulator configured to regulate the first bidirectional DC/DC converter and the second bidirectional DC/DC converter;a first intermediate regulated bus in electronic communication with the first bidirectional DC/DC converter;a second intermediate regulated bus in electronic communication with the second bidirectional DC/DC converter, the first intermediate regulated bus and the second intermediate regulated bus connected in parallel;a regulated high voltage direct current (HVDC) bus configured to receive power from at least one of the first intermediate regulated bus and the second intermediate regulated bus;a primary load HVDC bus configured to receive power from the regulated HVDC bus;a first power source configured to supply power to the primary load HVDC bus;a primary power distribution unit (PDU); anda primary load bidirectional DC/DC converter configured to receive power from the unregulated DC bus and configured to supply power to the primary PDU,wherein the primary PDU is configured to supply power to a first load. 8. The PMAD system of claim 7, further comprising: a second collector bus in electronic communication with the main load sharing regulator and in electronic communication with the unregulated DC bus,a second plurality of power sources configured to supply power to the second collector bus;a third bidirectional DC/DC converter in electronic communication with the unregulated DC bus;a fourth bidirectional DC/DC converter in electronic communication with the unregulated DC bus;a second intermediate load sharing regulator in electronic communication with the third bidirectional DC/DC converter and the fourth bidirectional DC/DC converter, the second intermediate load sharing regulator configured to regulate the third bidirectional DC/DC converter and the fourth bidirectional DC/DC converter;a third intermediate regulated bus in electronic communication with the third bidirectional DC/DC converter;a fourth intermediate regulated bus in electronic communication with the fourth bidirectional DC/DC converter, the third intermediate regulated bus and the fourth intermediate regulated bus connected in parallel;a regulated low voltage direct current (LVDC) bus configured to receive power from at least one of the third intermediate regulated bus and the fourth intermediate regulated bus,a primary load LVDC bus configured to receive power from the regulated LVDC bus;a second power source configured to supply power to the primary load LVDC bus;a second primary power distribution unit (PDU); anda second primary load bidirectional DC/DC converter configured to receive power from the unregulated DC bus and configured to supply power to the second primary PDU,wherein the second primary PDU is configured to supply power to a second load. 9. The PMAD system of claim 8, wherein the first collector bus and the second collector bus are connected in parallel. 10. The PMAD system of claim 9, wherein the unregulated DC bus is connected in series with the first collector bus and connected in series with the second collector bus. 11. The PMAD system of claim 10, wherein the first collector bus, the unregulated DC bus, the first bidirectional DC/DC converter, the first intermediate regulated bus, and the regulated HVDC bus are connected in series. 12. The PMAD system of claim 11, wherein the first bidirectional DC/DC converter and the second bidirectional DC/DC converter are connected in parallel. 13. The PMAD system of claim 12, wherein the first load comprises a high voltage load and the second load comprises a low voltage load. 14. The PMAD system of claim 13, wherein the first plurality of power sources comprises: a first solar array configured to supply power to the first collector bus via a first maximum power point tracking (MPPT) converter;a first battery in electronic communication with the first collector bus via the first bidirectional DC/DC converter; anda first supercapacitor in electronic communication with the first collector bus configured to at least one of receive power from the first collector bus, via the third bidirectional DC/DC converter, and supply power to the first collector bus, via the third bidirectional DC/DC converter. 15. The PMAD system of claim 14, wherein the second plurality of power sources comprises: a second solar array configured to supply power to the second collector bus via a second maximum power point tracking (MPPT) converter;a second battery in electronic communication with the second collector bus via the second bidirectional DC/DC converter; anda second supercapacitor in electronic communication with the second collector bus configured to at least one of receive power from the second collector bus, via a fourth bidirectional DC/DC converter, and supply power to the second collector bus, via the fourth bidirectional DC/DC converter. 16. The PMAD system of claim 15, wherein the main load sharing regulator controls the first MPPT converter, the second MPPT converter, the first bidirectional DC/DC converter, and the second bidirectional DC/DC converter. 17. The PMAD system of claim 16, wherein the first battery is configured to at least one of receive power from the first collector bus, via the first bidirectional DC/DC converter and supply power to the first collector bus, via the first bidirectional DC/DC converter. 18. The PMAD system of claim 8, wherein the first power source comprises a first supercapacitor and the second power source comprises a second supercapacitor. 19. A method for supplying electric power to a load comprising: receiving, by a first collector bus, electric power from a first plurality of electric power sources;receiving, by a second collector bus, electric power from a second plurality of electric power sources;regulating, by a main load sharing regulator, the electric power received by the first collector bus and the electric power received by the second collector bus;receiving, by an unregulated DC bus, electric power from at least one of the first collector bus and the second collector bus, the first collector bus and the second collector bus connected in parallel;receiving, by a regulated high voltage direct current (HVDC) bus, electric power from the unregulated DC bus;receiving, by a primary load HVDC bus, electric power from the regulated HVDC bus;receiving, by a primary load bidirectional DC/DC converter, electric power from the unregulated DC bus; andreceiving, by a primary power distribution unit (PDU), electric power from at least one of the primary load HVDC bus and the primary load bidirectional DC/DC converter. 20. The method of claim 19, further comprising at least one of: receiving, by the primary load HVDC bus, electric power from a capacitor via a bidirectional DC/DC converter; andreceiving, by the primary load HVDC bus, electric power from the load.