Least Power Point Tracking Method for Photovoltaic Differential Power Processing Systems

Jeon, Young-Tae; Lee, Hyunji; Kim, Katherine A.; Park, Joung‐Hu

doi:10.1109/tpel.2016.2556746

Cited by 95 publications

(23 citation statements)

References 33 publications

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“…With the advancement of the power semiconductor technology, distributed power electronics [123][124][125][126][127] can be integrated or embedded at the module level to mitigate mismatching effects. DPP converters [53,56], PV balancers [128], and PV equalisers [129,130] are typical representatives.…”

Section: Distributed Power Electronics-based Techniquesmentioning

confidence: 99%

Review of mismatch mitigation techniques for PV modules

Niazi

Yang

Séra

2019

IET Renewable Power Generation

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The installation of photovoltaic (PV) systems is continuously increasing in both standalone and grid-connected applications. The energy conversion from solar PV modules is not very efficient, but it is clean and green, which makes it valuable. The energy output from the PV modules is highly affected by the operating conditions. Varying operating conditions may lead to faults in PV modules, e.g. the mismatch faults, which may occur due to shadows over the modules. Consequently, the entire PV system performance in terms of energy production and lifetime is degraded. To address this issue, mismatch mitigation techniques have been developed in the literature. In this context, this study provides a review of the state-of-the-art mismatch mitigation techniques, and operational principles of both passive and active techniques are briefed for better understanding. A comparison is presented among all the techniques in terms of component count, complexity, efficiency, cost, control, functional reliability, and appearance of local maximums. Selected techniques are also benchmarked through simulations. This review serves as a guide to select suitable techniques according to the corresponding requirements and applications. More importantly, it is expected to spark new ideas to develop advanced mismatch mitigation techniques.

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Section: Distributed Power Electronics-based Techniquesmentioning

confidence: 99%

Review of mismatch mitigation techniques for PV modules

Niazi

Yang

Séra

2019

IET Renewable Power Generation

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“…Em [26], [27] os autores propõe métodos de rastreamento de potência limitada visando minimizar o estresse de energia e as perdas do conversor fotovoltaico. Em [28] é desenvolvida uma técnica para que a geração de energia seja constante e atenda aos requisitos impostos pela rede.…”

Section: Introductionunclassified

Estratégia de Controle para Conversor Boost Fotovoltaico Operando nos Modos MPPT e LPPT

Santos¹,

Costa²,

Stein³

et al. 2020

Revista Eletrônica de Potência

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This paper proposes a control strategy composed of a maximum power point tracking algorithm (MPPT) and a limited power point tracking algorithm (LPPT) for boost converters of grid connected photovoltaic systems. First of all, a traditional MPPT technique is implemented and after that, the LPPT technique proposed in this work is developed without adding new sensors. The developed LPPT can be used both in photovoltaic systems that have only one boost converter in the dc stage as well as in systems with multiple converters sharing the same dc bus on the inverter side. In addition, the proposed strategy can contribute to the control of the photovoltaic inverter when the system needs to limit the active power

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“…DPP converters in the adjacent panel-to-panel architecture are based on nonisolated bidirectional converters, such as PWM converters [3][4][5][6][7][8][9][10] and switched capacitor converters [11][12][13][14][15][16][17]. Isolated bidirectional flyback converters are employed in the panel-to-panel architecture with an isolated port [18][19][20][21][22][23][24]. For the string-to-panel architecture, single-input-multi-output converters, such as a multi-winding flyback converter [25], multi-stacked buck-boost converters [26,27], and resonant voltage multipliers (VMs) [28][29][30][31], are employed.…”

Section: Introductionmentioning

confidence: 99%

LLC Resonant Voltage Multiplier-Based Differential Power Processing Converter Using Voltage Divider with Reduced Voltage Stress for Series-Connected Photovoltaic Panels under Partial Shading

2019

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Partial shading on photovoltaic (PV) strings consisting of multiple panels connected in series is known to trigger severe issues, such as reduced energy yield and the occurrence of multiple power point maxima. Various kinds of differential power processing (DPP) converters have been proposed and developed to prevent partial shading issues. Voltage stresses of switches and capacitors in conventional DPP converters, however, are prone to soar with the number of panels connected in series, likely resulting in impaired converter performance and increased circuit volume. This paper proposes a DPP converter using an LLC resonant voltage multiplier (VM) with a voltage divider (VD) to reduce voltage stresses of switches and capacitors. The VD can be arbitrarily extended by adding switches and capacitors, and the voltage stresses can be further reduced by extending the VD. Experimental verification tests for four PV panels connected in series were performed emulating partial shading conditions in a laboratory and outdoor. The results demonstrated the proposed DPP converter successfully precluded the negative impacts of partial shading with mitigating the voltage stress issues.

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Least Power Point Tracking Method for Photovoltaic Differential Power Processing Systems

Cited by 95 publications

References 33 publications

Review of mismatch mitigation techniques for PV modules

Review of mismatch mitigation techniques for PV modules

Estratégia de Controle para Conversor Boost Fotovoltaico Operando nos Modos MPPT e LPPT

LLC Resonant Voltage Multiplier-Based Differential Power Processing Converter Using Voltage Divider with Reduced Voltage Stress for Series-Connected Photovoltaic Panels under Partial Shading

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