Dynamic model of a grid-connected photovoltaic inverter with one cycle control

Femia, N.; Fortunato, M.; Petrone, G.; Spagnuolo, Giovanni; Vitelli, M.

doi:10.1109/iecon.2009.5414867

Cited by 6 publications

(2 citation statements)

References 13 publications

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“…Systems based on OCC do not require the service of a PLL [13]- [15]. In addition to this, they offer fast dynamic response due to the presence of the current-control loop [16].…”

Section: Introductionmentioning

confidence: 99%

One-Cycle-Controlled Single-Stage Single-Phase Voltage-Sensorless Grid-Connected PV System

Sreeraj

Chatterjee

Bandyopadhyay

2013

IEEE Trans. Ind. Electron.

108

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Reforms in the electricity sector along with various renewable-energy-promotion policies have increased the importance of small grid-connected photovoltaic (PV) systems utilizing single-stage single-phase inverters. Ruggedness, reliability, and cost effectiveness are the desirable characteristics of such inverters used in distributed low-power applications. Schemes based on one-cycle control (OCC) which do not require the service of a phase-locked loop for interfacing the inverter to the grid are increasingly being employed for such applications. However, the OCC-based schemes reported earlier require sensing of the grid voltage which somewhat offsets one of the inherent strengths of OCC-based systems. In an effort to overcome the aforementioned limitation, an OCC-based grid-connected single-stage PV system is proposed in this paper which does not require to sense the grid voltage. Further, it requires less number of sensors (two) as compared to that required (four) in the earlier reported scheme for the implementation of the core controller comprising of OCC and maximum-power-point-tracking blocks. The viability of the proposed scheme is confirmed by performing simulation and experimental validation.Index Terms-Maximum-power-point tracking (MPPT), one-cycle control (OCC), photovoltaic (PV) inverter, single-phase grid-connected inverter.

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“…Systems based on OCC do not require the service of a PLL [13]- [15]. In addition to this, they offer fast dynamic response due to the presence of the current-control loop [16].…”

Section: Introductionmentioning

confidence: 99%

One-Cycle-Controlled Single-Stage Single-Phase Voltage-Sensorless Grid-Connected PV System

Sreeraj

Chatterjee

Bandyopadhyay

2013

IEEE Trans. Ind. Electron.

108

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“…As illustrated in Fig. 2, MPPT algorithms are typically implemented in a stand-alone fashion by setting the reference voltage (or current) to the DC-DC converter [8][9][10][11][12][13]. The MPPT algorithm must wait for the converter to reach the indicated operating point prior taking any other action, which leads to a relatively slow performance even when the algorithm is optimized [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Direct MPPT control of PWM converters for extreme transient PV applications

Zurbriggen

Paz

Ordonez

2016

2016 IEEE Applied Power Electronics Conference and Exposition (APEC)

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Solar panels require of Maximum Power PointTracking algorithms in order to ensure the amount of power extracted is maximized. The control of the power stage connected to the photovoltaic panel, and the MPPT algorithm are traditionally implemented as two independent building blocks, which derives in a relatively slow response. A novel approach is introduced in this work by embedding the MPPT algorithm into the power converter control, allowing faster dynamics, smaller reactive components and reduced switching losses. The scheme being introduced combines MPPT concepts with largesignal geometric control to achieve a high-performance, reliable solution. The theoretical analysis is supported by detailed mathematical procedures and validated by simulations and experimental results.

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