Phase-controlled inverters associated to a multi-pulse autotransformer applied to photovoltaic cogeneration

One alternative for the processing of energy acquired by photovoltaic panels is the use of phase-controlled inverters associated with multi-pulse autotransformers, which is nothing more than a dual system for multi-pulse rectifiers. This converter has advantages related to robustness, low maintenance, reliability and low cost. Another important feature is that the use of transformers with specific displacement reduces the quantity of harmonic current injected into the grid. This paper will present this converter and proposes the use of Maximum Power Point Tracking (MPPT) acting on the average input voltage of the inverter, using the trigger angle to vary the average voltage of the converter and keep it operating at the maximum power point of the PV panels.

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“…Angle θ (°) The waveform of current I A can be decomposed into a Fourier series [8]. Thus, the expressions for current are:…”

Section: -Pulse Autotransformermentioning

confidence: 99%

“…As the current injected on the grid needs to complies with IEEE 519-1992 standards [11], a high-frequency filter have been included to the system. The project of this filter is presented at [12]. Figure 13.…”

Section: Developed Prototypementioning

confidence: 99%

Using MPPT in multi-pulse converters for photovoltaic cogeneration

Brighenti

Hock

Kremer

et al. 2014

2014 IEEE Energy Conversion Congress and Exposition (ECCE)

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“…Only a few papers can be found trying to approach LCC inverters for power generation and all of them are conference papers, [6][7][8][9][10]. In [6][7][8] the authors proposed the use of LCC inverters (6 and 12 pulse converter) for power production using a group of PV panels; however, they lack experimental results, small signal model and stability analysis, as well.…”

Section: -Introductionmentioning

confidence: 99%

“…In [6][7][8] the authors proposed the use of LCC inverters (6 and 12 pulse converter) for power production using a group of PV panels; however, they lack experimental results, small signal model and stability analysis, as well. In [9][10] the authors proposed the use of a multi-pulse converter (18-pulse) for power generation by means of PV arrays. However, nothing is reported about the small signal analysis and the control techniques.…”

Section: -Introductionmentioning

confidence: 99%

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Model, Design and Implementation of LCC Converter for Power Generation and Distributed Generation

Bastos¹,

Dias²,

Machado³

2019

Eletrônica de Potência

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This paper proposes to model, design and implement a LCC (Line Commuted Converter) for power generation purpose, using alternative sources such as photovoltaic panel (PV), fuel cell and permanent magnet synchronous machine as the main power source. The converter is built with a full bridge twelve-pulse thyristor topology and connected to the alternative source through a line reactor. In order to extract maximum power from the sources, a classical maximum power point tracking algorithm (MPPT P&O) is applied. To validate the theoretical and simulated analysis, a 600 W experimental setup was built and controlled in closed loop. For the experimental results, the alternative source was represented by a variable DC power source in series with a resistor, making it possible to create controlled power steps and power events. During the operation, the grid current is analyzed in terms of power quality and an islanding event was created to analyze the converter's behavior under critical conditions. All the experimental results show perfect conformity with the theory and simulation, proving the effectiveness of this converter topology for this purpose.

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Phase-controlled inverters associated to a multi-pulse autotransformer applied to photovoltaic cogeneration

Cited by 2 publications

References 5 publications

Using MPPT in multi-pulse converters for photovoltaic cogeneration

Using MPPT in multi-pulse converters for photovoltaic cogeneration

Model, Design and Implementation of LCC Converter for Power Generation and Distributed Generation

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