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A system for integrating local maximum power point tracking (MPPT) into an energy generating system having centralized MPPT is provided. The system includes a system control loop and a plurality of local control loops. The system control loop comprises a system operating frequency, and each local co

A system for integrating local maximum power point tracking (MPPT) into an energy generating system having centralized MPPT is provided. The system includes a system control loop and a plurality of local control loops. The system control loop comprises a system operating frequency, and each local control loop comprises a corresponding local operating frequency. Each of the local operating frequencies is spaced apart from the system operating frequency by at least a predefined distance. For a particular embodiment, a settling time corresponding to the local operating frequency of each local control loop is at least five times faster than a time constant corresponding to the system operating frequency.

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1. A system for integrating local maximum power point tracking (MPPT) into an energy generating system having centralized MPPT, comprising: a system control loop comprising a system operating frequency; anda plurality of local control loops, each local control loop comprising a corresponding local o

1. A system for integrating local maximum power point tracking (MPPT) into an energy generating system having centralized MPPT, comprising: a system control loop comprising a system operating frequency; anda plurality of local control loops, each local control loop comprising a corresponding local operating frequency, wherein each of the local operating frequencies is spaced apart from the system operating frequency by at least a predefined distance. 2. The system of claim 1, wherein the system control loop comprises a closed-loop system and each of the local control loops comprises a closed-loop system. 3. The system of claim 1, wherein the system control loop comprises an array of energy generating devices and a DC-AC converter comprising a central MPPT control block configured to provide MPPT for the array. 4. The system of claim 1, wherein each local control loop comprises an energy generating device and a local converter configured to provide MPPT for the energy generating device. 5. The system of claim 1, wherein the system operating frequency comprises a corresponding time constant for the system control loop. 6. The system of claim 5, wherein each of the local operating frequencies comprises a corresponding settling time for the local control loop that corresponds to that local operating frequency. 7. The system of claim 6, wherein the settling time of each local control loop is faster than the time constant for the system control loop. 8. The system of claim 6, wherein the settling time of each local control loop is at least five times faster than the time constant for the system control loop. 9. A system for integrating local maximum power point tracking (MPPT) into an energy generating system having centralized MPPT, comprising: a system control loop comprising an array of energy generating devices and a DC-AC converter comprising a central MPPT control block configured to provide MPPT for the array, wherein the system control loop is configured to operate based on a system operating frequency; anda plurality of local control loops, each local control loop comprising one of the energy generating devices and a local converter configured to provide MPPT for the energy generating device, wherein each of the local control loops is configured to operate based on a corresponding local operating frequency, and wherein each of the local operating frequencies is spaced apart from the system operating frequency by at least a predefined distance. 10. The system of claim 9, wherein the system control loop comprises a closed-loop system and each of the local control loops comprises a closed-loop system. 11. The system of claim 9, wherein the system operating frequency comprises a corresponding time constant for the system control loop. 12. The system of claim 11, wherein each of the local operating frequencies comprises a corresponding settling time for the local control loop that corresponds to that local operating frequency. 13. The system of claim 12, wherein the settling time of each local control loop is faster than the time constant for the system control loop. 14. The system of claim 12, wherein the settling time of each local control loop is at least five times faster than the time constant for the system control loop. 15. A method for integrating local maximum power point tracking (MPPT) into an energy generating system having centralized MPPT, comprising: providing a system control loop comprising a system operating frequency; andproviding a plurality of local control loops, each local control loop comprising a corresponding local operating frequency, wherein each of the local operating frequencies is spaced apart from the system operating frequency by at least a predefined distance. 16. The method of claim 15, wherein the system operating frequency comprises a corresponding time constant for the system control loop. 17. The method of claim 16, wherein each of the local operating frequencies comprises a corresponding settling time for the local control loop that corresponds to that local operating frequency. 18. The method of claim 17, wherein the settling time of each local control loop is faster than the time constant for the system control loop. 19. The method of claim 17, wherein the settling time of each local control loop is at least five times faster than the time constant for the system control loop. 20. The method of claim 15, wherein the system control loop comprises an array of energy generating devices and a DC-AC converter comprising a central MPPT control block configured to provide MPPT for the array, and wherein each local control loop comprises one of the energy generating devices and a local converter configured to provide MPPT for the energy generating device.