An experimental comparative study of perturb and observe and incremental conductance MPPT techniques for two-stage photovoltaic inverter

Moreira, Hugo Soeiro; Reis, Marcos Vinícios Gomes dos; Araujo, Lucas S.; Oliveira, Tisciane Perpetuo e; Villalva, Marcelo Gradella

doi:10.1109/cobep.2017.8257370

Cited by 14 publications

(3 citation statements)

References 15 publications

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“…2, notice that the P&O MPPT determinations compare the change in PV power, ∆P, and change in PV voltage, ∆V, for two points, K and K-1, on a P-V curve to identify the maximum power point. The main disadvantages of this technique are inability to deal with rapid weather changes, high oscillations around the MPP, the slow response, and failure to track GMPP under PSC [18], [19].…”

Section: Proposed Methodsmentioning

confidence: 99%

Enhancement of MPPT Module for Partial Shading Photovoltaic System Under Uniform Irradiance Conditions

Mohammed¹,

Mohd‐Mokhtar²,

Ali

2023

IIUMEJ

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Maximum Power Point Tracking (MPPT) algorithms play a critical role in maximizing the output power of solar panels. Different MPPT techniques are evaluated based on several criteria, such as tracking speed, simplicity, and accuracy with changes in solar irradiance and ambient temperature. Under partial shading conditions (PSCs), conventional techniques fail to track global maximum power points (GMPP). This paper aims to present an automatic and accurate method to fix the complexity of determining the accurate lookup table data in an automatic and fast process under uniform irradiance conditions (UICs) and PSCs. The proposed method runs the photovoltaic (PV) module with all potential irradiance and temperature. It automatically calculates the perfect voltage reference (Vref) for all potential PV system cases. The Vref is collected in an array, sent into a two-dimensional lookup table, and used for controlling the boost converter. Simulation results verify the effectiveness of the proposed method. In addition, a comparison was also made with the conventional perturb and observe (P&O) method. Under UICs, the proposed method takes less time than the conventional P&O algorithm to reach the MPP. The time difference between them is ?t = 0.133 sec and ?t = 0.04 sec for the first scanning process at t = 0 sec and sudden change irradiance at t = 1.5 sec, respectively. As for PSCs, the proposed method reached the GMPP during pattern 104 (first peak) without any power loss, while the P&O MPPT was able to track the GMPP but with power losses of 2729.97 watts. ABSTRAK: Algoritma Penjejakan Titik Kuasa Maksimum (MPPT) memainkan peranan penting dalam memaksimumkan kuasa keluaran panel solar. Teknik MPPT yang berbeza dinilai berdasarkan beberapa kriteria seperti kelajuan pengesanan, kesederhanaan, dan ketepatan dengan perubahan dalam sinaran suria dan suhu ambien. Di bawah keadaan teduhan separa (PSC), teknik konvensional gagal menjejak titik kuasa maksimum global (GMPP). Kajian ini bertujuan bagi membentangkan kaedah automatik dan tepat bagi membetulkan kesusahan dalam menentukan carian data berjadual secara tepat, automatik dan pantas di bawah keadaan sinaran seragam (UIC) dan PSC. Kaedah yang dicadangkan menjalankan modul fotovoltaik (PV) dengan semua potensi sinaran dan suhu dan mengira rujukan voltan sempurna (Vref) secara automatik bagi semua kes yang berpotensi dalam sebarang jenis sistem PV. Vref dikumpul dalam tata susunan, dihantar ke dalam jadual carian dua dimensi, dan digunakan bagi mengawal penukar rangsangan. Keputusan simulasi mengesahkan keberkesanan kaedah yang dicadangkan. Perbandingan juga dibuat dengan kaedah konvensional perhati dan ganggu (P&O). Di bawah UIC, kaedah yang dicadangkan mengambil masa yang lebih singkat berbanding algoritma konvensional P&O bagi mencapai MPP. Perbezaan masa antara keduanya adalah masing-masing, ?t = 0.133 saat dan ?t = 0.04 saat bagi proses pengimbasan pertama iaitu pada t = 0 saat dan sinaran perubahan mendadak pada t = 1.5 saat. Bagi PSC, kaedah yang dicadangkan mencapai GMPP semasa corak 104 (puncak pertama) tanpa kehilangan kuasa manakala MPPT P&O dapat mengesan GMPP tetapi dengan pengurangan kuasa sebanyak 2729.97 watt.

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Section: Proposed Methodsmentioning

confidence: 99%

Enhancement of MPPT Module for Partial Shading Photovoltaic System Under Uniform Irradiance Conditions

Mohammed¹,

Mohd‐Mokhtar²,

Ali

2023

IIUMEJ

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“…Therefore, IC is good choice mainly during sudden variation of climate conditions [29][30][31][32][33][34]. A mathematical as well as practical comparison between IC and P&O is also given in detail in [28,33] and experimental result at different operating frequency is compared between IC and P&O [28]. Hardware based successful implementation of Cuk converter using IC with fixed step size is presented in details in [34].…”

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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“…For small power oscillations a smaller step size is used, but it takes long time to reach the MPP. The tracking speed can be increased by using a larger step size; however, this will lead to increase in power oscillations [7, 8]. The FOCV and FSSC have fast tracking speed as they estimate single

V_{mp}

(voltage at maximum power) and

I_{mp}

(current at maximum power), respectively.…”

Section: Introductionmentioning

confidence: 99%

Online fractional open‐circuit voltage maximum output power algorithm for photovoltaic modules

Nadeem

Sher

Murtaza

2020

IET Renewable Power Generation

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An efficient maximum power point tracking technique is developed, which realises the fractional open-circuit voltage (FOCV) algorithm through a unique on-line procedure. The proposed method continuously estimates the open-circuit voltage by measuring instantaneous voltage, current, and temperature of the photovoltaic module without disconnecting the power flow to the load. Simultaneously, the open-circuit voltage (V oc) value can be measured at any operating point of the I-V curve and does not require any perturbation to the specific point. Three methods i.e. proposed algorithm, analytical FOCV, and conventional offline FOCV are modelled in Matlab/Simulink environment and also the numerical computations are carried out. Finally, the proposed FOCV and the conventional offline FOCV are tested through the experimental setup. The comparative analysis indicates the following advantages: (i) interruption-free output power; (ii) accurate measurement of V oc under any weather condition, especially variable temperature condition; and (iii) continuous measurement and tracking of maximum power point (MPP). Owing to the aforementioned advantages, the proposed method exhibits better MPP tracking and superior dynamic plus steady-state efficiencies as compared to the analytical FOCV and conventional offline FOCV methods.

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An experimental comparative study of perturb and observe and incremental conductance MPPT techniques for two-stage photovoltaic inverter

Cited by 14 publications

References 15 publications

Enhancement of MPPT Module for Partial Shading Photovoltaic System Under Uniform Irradiance Conditions

Enhancement of MPPT Module for Partial Shading Photovoltaic System Under Uniform Irradiance Conditions

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

Online fractional open‐circuit voltage maximum output power algorithm for photovoltaic modules

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