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MPPT

Hybrid salp swarm algorithm for MPPT optimization

Indian researchers have created a hybrid salp swarm algorithm to optimize MPPT tracking in PV systems under partial shading conditions. It is based on the swarming behavior of salps in the ocean.

Simplified modeling for partially shaded PV systems

A proposed two-diode model is based exclusively on the standard test condition parameters of solar modules and their irradiance levels. The analytical tool reportedly enables PV system operators to estimate the I-V curves of a shaded array quickly and accurately.

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New MPPT algorithm for bidirectional inverter design

A newly proposed inverter design relies on a solar charge controller featuring maximum power point tracking. It is based on an artificial fish-swarm algorithm, which offers high convergence speeds, flexibility, fault tolerance, and accuracy.

Fuzzy logic MPPT to improve PV system performance

A Pakistani-Chinese research group has demonstrated a new maximum power point tracking method, based on a fuzzy logic algorithm to provide faster results. The converter tech is claimed to have an impact on PV system efficiency and provide isolation between the load and the PV array.

Temperature-based MPPT algorithm to improve PV system efficiency

Researchers in Spain have developed a maximum power point tracking (MPPT) algorithm based on just one input parameter – PV module temperature. The algorithm has already shown stability in testing, the scientists claim.

Ginlong unveils 255 kW string inverter

The manufacturer says its new device is the highest-powered string inverter available. The Solis-255K-EHV, three-phase product has a reported efficiency of 99% – and a European efficiency of 98.8%.

Efficient rooftop solar+storage without MPPT

A German research group is trying to determine whether the combination of solar and storage with direct coupling and without the aid of maximum power point tracking (MPPT) electronics is feasible. According to its findings, this particular configuration might be efficient, but it will likely require special panels and batteries.

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IBC back-contact solar roof for electric vehicles

Dutch EV start-up Lightyear is already producing prototype roofs to extend the range of its Lightyear One solar car. The roofs will feature interdigitated back contact solar cells made by U.S. company SunPower and backsheets from Dutch multinational DSM.

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Mitigating shading in PV modules with new reconfiguration technique

Scientists in India are seeking to mitigate partial shading with a technique based on the Lo Shu nine-square grid of ancient Chinese mathematical tradition. Their approach features the ‘magic grid’ also used in popular sudoku puzzles, as a guide for reconfiguring arrays.

Reducing total harmonic distortion with adaptive filters

A Malaysian study has compared the techniques used to reduce total harmonic distortion caused by PV systems. The paper, which considers the benefits and drawbacks of the approaches studied, suggests the use of adaptive filters.

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