Method for controlling extraction of power from multiple photo voltaic (pv) arrays and system thereof
AssigneeIndian Institute of Technology Bombay
InventorsAbhijit Kadam, Prof. Anshuman Shukla
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Abstract
Embodiments herein provide a system and method for controlling extraction of power from multiple Photo Voltaic (PV) arrays. At least two converters and at least two Photo Voltaic (PV) arrays are configured. The power extraction is controlled through one of an injection of Direct Current (Idc) into output current of each of the at least two converters, or by performing a phase shifting of each of the output current of each of the at least two converters.
Claims20
A method for controlling extraction of power from multiple Photo Voltaic (PV) arrays, the method comprising:
- configuring, at least two converters for supplying current to a grid, wherein first converter of the at least two converters generates a first output current and a second converter of the at least two converters generates a second output current;
- configuring, at least two Photo Voltaic (PV) arrays of the multiple PV arrays, wherein the first converter is connected between a positive terminal of first PV array of the at least two PV arrays and a grid, and wherein a negative voltage is supplied through an internal capacitor of the first converter,
- connecting, the second converter between a negative terminal of second PV array of the at least two PV arrays and the grid, and wherein a positive voltage is supplied through an internal capacitor of the second converter;
- and
- controlling, the extraction of the power from the at least two PV arrays by using one or more predefined methodology.
A system for controlling power extraction from multiple Photo Voltaic (PV) arrays, the system comprising:
- at least two converters for supplying current to a grid, wherein first converter of the at least two converters generate a first output current and a second converter of the at least two converters generate a second output current;
- at least two Photo Voltaic (PV) arrays of the multiple arrays, wherein a negative terminal of first PV array of the at least two PV arrays and a positive terminal of a second PV array of the at least two PV arrays is connected to form a neutral point of each of first converter and second the converter;
- wherein the first converter is connected between a positive terminal of first PV array of the at least two PV arrays and the grid, and wherein a negative voltage is supplied through an internal capacitor network of the first converter;
- wherein the second converter is connected between a negative terminal of second PV array of the at least two PV arrays and the grid, and wherein a positive voltage is supplied through an internal capacitor of the second converter;
- wherein each of the first output current and the second output current is modified by using one or more predefined methodology for controlling the power extraction.
The system as claimed in 8, wherein multiple legs of the converter are connected thereby forming a multiphase converter.
A system for controlling power extraction from multiple Photo Voltaic (PV) arrays, the system comprising:
- at least two converters for supplying current to a grid, wherein first converter of the at least two converters generate a first output current and a second converter of the at least two converters generate a second output current;
- at least two Photo Voltaic (PV) arrays of the multiple arrays, wherein a negative terminal of first PV array of the at least two PV arrays and a positive terminal of a second PV array of the at least two PV arrays is connected to form a neutral point of each of first converter and second the converter;
- wherein the first converter is connected between a positive terminal of first PV array of the at least two PV arrays and the grid, and wherein a negative voltage is supplied through an internal capacitor network of the first converter;
- wherein the second converter is connected between a negative terminal of second PV array of the at least two PV arrays and the grid, and wherein a positive voltage is supplied through an internal capacitor of the second converter;
- and
- wherein Direct Current (DC) is injected into each of the first output current and the second output current, such that no DC current is injected into the grid.
Dependencies are inferred from the claim text.