Averaged current mode control for maximum power point tracking in high-gain photovoltaic applications

Romo, David de la Rosa; Loera-Palomo, Rodrigo; Rivero, Michel; Sellschopp-Sánchez, Francisco S.

doi:10.1007/s43236-020-00144-1

Cited by 7 publications

(2 citation statements)

References 30 publications

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“…Notably, other topologies with high gain or quadratic voltage conversion ratio have been developed under this kind of noncascading structure for PV applications, as discussed in [ 34 , 35 , 36 ]. Nevertheless, different procedures exist to develop topologies with specific high voltage gain, as stated in [ 37 ].…”

Section: Proposed Convertermentioning

confidence: 99%

“…This topology uses two active switches, S 1 and S 3 ; two passive switches, S 2 and S 4 ; two inductors, L 1 and L 2 ; a storage element, C 1 ; and an output capacitor, C 2 . Additionally, E represents a voltage source and the load is modeled by a resistance R. Notably, other topologies with high gain or quadratic voltage conversion ratio have been developed under this kind of noncascading structure for PV applications, as discussed in [34][35][36]. Nevertheless, different procedures exist to develop topologies with specific high voltage gain, as stated in [37].…”

Section: Proposed Convertermentioning

confidence: 99%

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Noncascading Quadratic Buck-Boost Converter for Photovoltaic Applications

et al. 2021

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The development of switching converters to perform with the power processing of photovoltaic (PV) applications has been a topic receiving growing interest in recent years. This work presents a nonisolated buck-boost converter with a quadratic voltage conversion gain based on the I–IIA noncascading structure. The converter has a reduced component count and it is formed by a pair of L–C networks and two active switches, which are operated synchronously to achieve a wide conversion ratio and a quadratic dependence with the duty ratio. Additionally, the analysis using different sources and loads demonstrates the differences in the behavior of the converter, as well as the pertinence of including PV devices (current sources) into the analysis of new switching converter topologies for PV applications. In this work, the voltage conversion ratio, steady-state operating conditions and semiconductor stresses of the proposed converter are discussed in the context of PV applications. The operation of the converter in a PV scenario is verified by experimental results.

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Section: Proposed Convertermentioning

confidence: 99%

Section: Proposed Convertermentioning

confidence: 99%

Noncascading Quadratic Buck-Boost Converter for Photovoltaic Applications

et al. 2021

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Improved solar photovoltaic performance in standalone low‐voltage direct current microgrids using sensor fault tolerant control

Satya Sai Chandra,

Mohapatro

2024

Circuit Theory & Apps

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The advancement of renewable energy technology has been significantly aided by solar photovoltaics (PV). Since solar PV is a weather‐dependent source, it cannot be dispatched. To ensure that the solar PV system can harvest the maximum amount of electricity for the available irradiance level, maximum power point tracking (MPPT) algorithms are used. For standalone low‐voltage DC (LVDC) microgrids to utilize the energy storage system as efficiently as possible, maximum power extraction is essential. The sensed PV voltage and current are essential for these MPPT algorithms to ensure that the maximum power point of the panel is captured. This work proposes an effective fault‐tolerant control (FTC) scheme for the solar PV subsystem in the LVDC microgrid that can seamlessly extract the maximum power despite the PV voltage sensor being faulty. The proposed FTC scheme uses a sliding mode observer (SMO)‐based method to detect and isolate PV voltage sensor faults in the standalone LVDC microgrid. The efficacy of the proposed FTC is assessed in a range of circumstances involving load disturbance, irradiance change, and various sensor fault scenarios. The performance of the proposed FTC is validated using experimental analysis on the LVDC microgrid testbed and MATLAB simulations. Given a faulty PV voltage sensor, at a given operating condition of the microgrid, the proposed FTC scheme is successful in reducing the additional power burden on the battery storage by at least two times. Consequently, the additional discharge in terms of SoC is also seen to be decreased by at least 9%. The proposed FTC technique outperforms the popular MPPT approaches for solar PV in terms of PV voltage sensor fault tolerance in the microgrid.

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