Theoretical and Experimental Analyses of Photovoltaic Systems with Voltage and Current-Based Maximum Power Point Tracking

Masoum,; Dehbonei,; Fuchs, Alexandra

doi:10.1109/mper.2002.4312477

Cited by 251 publications

(180 citation statements)

References 9 publications

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“…Also an automatic voltage regulation (AVR) function is employed for dc/ac inverters. Because the 120Hz ripple current perturbs the operating points of solar cells, it degrades the MPPT function of a PV PCS and therefore, decreases the MPPT efficiency along with the entire PCS operation efficiency [6], [7]. Therefore, the proposed control method can increase the operation efficiency.…”

Section: Introductionmentioning

confidence: 99%

Mitigation of Low Frequency AC Ripple in Single-Phase Photovoltaic Power Conditioning Systems

Lee¹,

An²,

Cha³

2010

Journal of Power Electronics

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A photovoltaic power conditioning system (PV PCS) that contains single-phase dc/ac inverters tends to draw an ac ripple current at twice the output frequency. Such a ripple current perturbs the operating points of solar cells continuously and it may reduce the efficiency of the current based maximum power point tracking technique (CMPPT). In this paper, the ripple current generation in a dc link and boost inductor is analyzed using the ac equivalent circuit of a dc/dc boost converter. A new feed-forward ripple current compensation method to incorporate a current control loop into a dc/dc converter for ripple reduction is proposed. The proposed feed-forward compensation method is verified by simulation and experimental results. These results show a 41.8 % reduction in the peak-to peak ac ripple. In addition, the dc/ac inverter control system uses an automatic voltage regulation (AVR) function to mitigate the ac ripple voltage effect in the dc link. A 3kW PV PCS prototype has been built and its experimental results are given to verify the effectiveness of the proposed method.

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Section: Introductionmentioning

confidence: 99%

Mitigation of Low Frequency AC Ripple in Single-Phase Photovoltaic Power Conditioning Systems

Lee¹,

An²,

Cha³

2010

Journal of Power Electronics

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“…Fuchs & Masoum, 2011). Example #3: Design of a P AC =5.61 kW PV power plant for a residence A PV power plant consists of solar array, peak (maximum)-power tracker (Masoum et al, 2002;Masoum et al, 2004a), a step-up/step-down DC-to-DC converter, a deep-cycle battery for part f) only, a single-phase inverter, single-phase transformer, and residence which requires a maximum inverter AC output power of max inv P =5.61 kW as shown in Fig. 8.…”

Section: Intermittently Operating Renewable Plantsmentioning

confidence: 99%

Complementary Control of Intermittently Operating Renewable Sources with Short- and Long-Term Storage Plants

Fuchs¹,

Fuchs²

2011

Energy Storage in the Emerging Era of Smart Grids

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“…On the other hand, large perturbation step size increases the steady state oscillations. Hence to improve the performance of P&O, a variable perturbation step size was utilized (Masoum, Dehbonei, & Fuchs, 2002;Femia, Granozio, Petrone, Spagnuolo, & Vitelli, 2007;Pandey, Dasgupta, & Mukerjee, 2008).…”

Section: Introductionmentioning

confidence: 99%

<b>Impact of modified perturb and observe control on MPPT of PV/battery fed three - port DC‐DC converter

Mahendran

Ramaprabha

2017

Acta Sci. Technol.

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ABSTRACT. This paper presents the modified perturb and observe (P&O) maximum power point tracking (MPPT) method for photovoltaic (PV) fed three-port DC-DC converter in PV/battery hybrid system. The proposed MPPT technique reduces the drift problem which occurs in the conventional MPPT methods by including the data of change in current (ΔI) in addition to the data used in the conventional P&O algorithm. The drift phenomenon and its effects are clearly demonstrated in this paper. The ability of the proposed P&O method to address this issue is proved by comparing the conventional P&O algorithm in different modes of operation. The performance assessment includes peak overshoot, settling time, MPP ratio and stability. The experimental validation was implemented using DSPIC30F4011 microcontroller. From the analysis and results, it could be seen that the modified P&O showed better performance in terms of accuracy in tracking the maximum power, less tracking time, high MPP ratio and reduced drift in the changing weather conditions. Keywords: current-voltage characteristics, DC-DC power converters, drift, photovoltaic systems, power demand, pulse width modulation.Impacto da modificação perturbar e observar de controle na MPPT de PV / bateria fed Três -port conversor DC-DC RESUMO. Este artigo apresenta o método de monitoramento de ponto de potência máximo (MPPT) modificado e observado (P&O) para o conversor DC-DC de três portas alimentado por energia fotovoltáica (PV) no sistema híbrido PV/bateria. A técnica MPPT proposta reduz o problema de deslocamento (drift) que ocorre nos métodos MPPT convencionais, incluindo os dados de mudança na corrente (ΔI), além dos dados usados no algoritmo P&O convencional. O fenômeno do deslocamento (drift) e seus efeitos estão claramente demonstrados neste artigo. A capacidade do método de P&O proposto para resolver este problema é comprovado comparando com o algoritmo de P&O convencional em diferentes modos de operação. A avaliação de desempenho inclui o superávit do pico, tempo de estabilização, relação de MPP e estabilidade. A validação experimental foi implementada usando o microcontrolador DSPIC3o30F4011. A partir da análise e dos resultados, verificou-se que o P&O modificado mostrou melhor desempenho em termos de precisão no rastreamento da potência máxima, menor tempo de rastreamento, alta relação de MPP e deslocamento reduzido nas condições climáticas em constante mudança.Palavras-chave: características corrente-tensão, conversores de potência DC-DC, deslocamento, sistemas fotovoltáicos, demanda de energia, modulação de largura de pulso.

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Theoretical and Experimental Analyses of Photovoltaic Systems with Voltage and Current-Based Maximum Power Point Tracking

Cited by 251 publications

References 9 publications

Mitigation of Low Frequency AC Ripple in Single-Phase Photovoltaic Power Conditioning Systems

Mitigation of Low Frequency AC Ripple in Single-Phase Photovoltaic Power Conditioning Systems

Complementary Control of Intermittently Operating Renewable Sources with Short- and Long-Term Storage Plants

<b>Impact of modified perturb and observe control on MPPT of PV/battery fed three - port DC‐DC converter

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