Abstract:
This project presents a novel reduced sensor strategy for two-stage single-phase grid-connected solar photovoltaic systems with batteries that eliminates the dc-link voltage sensor. For voltage source converter (VSC) control and maximum power point tracking (MPPT), new “normal harmonic search” (NHS) and “power normalized kernel least mean square” (PNKLMS) algorithms are used.
Whether the load current is linear or nonlinear, the PNKLMS algorithm extracts active load components. PNKLMS generates reference grid current. The NHS algorithm, inspired by music composition, uses the normal probability distribution factor to improve harmony search. NHS quickly reaches the global maximum power point and is suitable for hardware-based online searching.
The grid receives extracted power. PNKLMS controls VSC to maintain power quality. A prototype tests NHS-based MPPT and PNKLMS-based control technique with reduced sensor approach. The NHS algorithm performs well under variable irradiance and temperature in partial shade.
The PNKLMS algorithm’s performance without a dc-link voltage sensor during overvoltage, undervoltage, harmonics distortion, and load nonlinearity conditions meets the proposed system’s and IEEE-519 standard’s objectives.
Note: Please discuss with our team before submitting this abstract to the college. This Abstract or Synopsis varies based on student project requirements.