Limits of Incremental Conductance for determining the Maximum Power Point under rapidly changing irradiance and an alternative technique based on fast scanning

Deng, Wenpeng; Amaratunga, G.A.J.

doi:10.1109/pvsc.2014.6924908

Cited by 6 publications

(2 citation statements)

References 5 publications

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“…Another approach for scanning the p − v characteristics of the PV string is based on switching impedance circuit which includes inductor of the boost converter [45]- [47], (Fig.8). Obviously, scanning is possible only for converter topologies, which allow for short-circuiting the inductor.…”

Section: B Methods Based On Utilizing Boost Converter Inductor (Methomentioning

confidence: 99%

Hardware methods for detecting global maximum power point in a PV power plant

Kot

Styński

Malinowski

2015

2015 IEEE International Conference on Industrial Technology (ICIT)

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Conventional maximum power point tracking (MPPT) algorithms are designed under assumption that all modules are uniformly insulated and therefore can be characterized by a single maximum power point (MPP). At increasing power level PV arrays become larger in area. Moreover, to achieve a reasonable voltage level modules are connected in series, creating strings. These two factors make any array susceptible for any mismatch in their current-voltage characteristics. Under partial shading condition (PSC), when PV modules receive different insulation, multiple maxima occur in power curve of the array. This leads to a tracking error of the MPP and results in significant decrease in efficiency of the system. This paper describes Global Maximum Power Point Searching (GMPPS) methods which are designed specifically for searching global MPP (GMPP). Three hardware methods, which are based on fast sweeping of the characteristics via additional circuitry are described and compared. Three-level boost (TLB) converter is utilized as a DC-DC converter performing GMPPS. Simulation results are provided with 15 kWp PV string model.

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Section: B Methods Based On Utilizing Boost Converter Inductor (Methomentioning

confidence: 99%

Hardware methods for detecting global maximum power point in a PV power plant

Kot

Styński

Malinowski

2015

2015 IEEE International Conference on Industrial Technology (ICIT)

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“…When there is rapid change of environmental conditions, there are global maxima along with local maxima. CIC with variable step size is not able to differentiate between local and global maxima, so further modification is made to track global maxima [41][42][43][44][45][46][47][48][49][50].…”

Section: By Increment Of Duty Cycle)mentioning

confidence: 99%

A Literature review on industrially accepted MPPT techniques for solar PV system

Yadav

Maurya

Gupta

2020

IJECE

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Solar energy is a clean renewable energy and it is available around 89,000 TW on the earth surface. To get maximum power from a solar PV system with minimum power transfer loss is one of the main design objectives of an energy transferring network. Power electronic devices perform a very important character for an efficient PV power tracking system control and either incorporates to transfer the generated power to the ac/dc grid or battery storage system. In this case the duty of the power electronics devices used in PV system is to track maximum power point under different operating conditions of environment, so that power tracking efficiency of solar PV system can be improved. This paper encapsulates based the on performance comparisions on the behavior of MPP under uniform and nonuniform operating conditions and selects the optimum duty cycle for industrially accepted MPPT techniques with their algorithm.

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