SYSTEMS AND METHODS FOR DETECTING AND CORRECTING A SUBOPTIMAL OPERATION OF ONE OR MORE INVERTERS IN A MULTI-INVERTER SYSTEM
First Claim
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1. A method comprising:
- receiving first power output information from a maximum power point tracking (MPPT) device configured to track a maximum power point of a solar power production system;
wherein the solar power production system contains a plurality of direct current (DC) to DC converting devices each connected with at least one of a plurality of solar panel units within the solar power production system;
making a determination, from the first power output information, that the MPPT device has been operating the solar power production system at a first state for a predetermined period of time, the first state being sub-optimal for the solar power production system; and
based on the determination, transmitting a first instruction to a first device, selected from the group consisting of the MPPT device and the plurality of DC to DC converting devices, to change a control operation of the first device.
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Abstract
Provided is a system and method for detecting and correcting a suboptimal operation of one or more maximum power point tracking (MPPT) devices in a solar photovoltaic power generation (SPVPG) system. MPPT devices may become stuck in a local maximum in a power curve and fail to reach an optimal maximum power point. Described herein are methods and systems for detecting sub-optimal performance of an MPPT device and managing components within the SPVPG system to cause the MPPT device to track a different maximum power point.
181 Citations
20 Claims
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1. A method comprising:
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receiving first power output information from a maximum power point tracking (MPPT) device configured to track a maximum power point of a solar power production system;
wherein the solar power production system contains a plurality of direct current (DC) to DC converting devices each connected with at least one of a plurality of solar panel units within the solar power production system;making a determination, from the first power output information, that the MPPT device has been operating the solar power production system at a first state for a predetermined period of time, the first state being sub-optimal for the solar power production system; and based on the determination, transmitting a first instruction to a first device, selected from the group consisting of the MPPT device and the plurality of DC to DC converting devices, to change a control operation of the first device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A solar photovoltaic power generation system, comprising:
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a plurality of photovoltaic panels; a plurality of direct current (DC) to DC converting devices each configured to adjust an output of a corresponding panel of the plurality of photovoltaic panels; a maximum power point tracking (MPPT) device adapted to control the plurality of photovoltaic panels; a master management unit (MMU) adapted to; receive information about a power output of the plurality of photovoltaic panels, make a determination, based on the information, that the MPPT device has been operating the plurality of photovoltaic panels in a sub-optimal state for a period of time, and instruct a first device, selected from the group consisting of the MPPT device and the DC to DC converting devices to change a control operation of the first device, based on the determination about the MPPT device. - View Dependent Claims (14, 15, 16, 17)
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18. An apparatus adapted to control a solar power production system, the apparatus comprising:
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a memory to store a first executable program; a microprocessor to execute the first executable program; and a communications device coupled to the microprocessor to receive first power output information from a maximum power point tracking (MPPT) device configured to track a maximum power point of the solar power production system; wherein the solar power production system contains a plurality of direct current (DC) to DC converting devices each connected with at least one of a plurality of solar panel units within the solar power production system; wherein the microprocessor is adapted to make a determination in accordance with the first executable program, from the first power output information, that the MPPT device has been operating the solar power production system at a first state for a predetermined period of time, the first state being sub-optimal for the solar power production system; and wherein the communications device is adapted to transmit, in response to the determination, a first instruction to a first device, selected from the plurality of DC to DC converting devices, to change a control operation of the first device. - View Dependent Claims (19, 20)
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Specification