Evaluation of an interleaved boost converter powered by fuel cells and connected to the grid via voltage source inverter

Fuzato, Guilherme Henrique Favaro; Aguiar, Cassius Rossi de; Bastos, Rogério Cid; Machado, Ricardo Q.

doi:10.1049/iet-pel.2017.0788

Cited by 17 publications

(15 citation statements)

References 30 publications

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“…It is indisputable that power electronics converters are essential for processing the generated power from renewable sources. Among the DC renewable power sources, proton exchange membrane fuel cell (PEMFC) systems [1][2][3] and photovoltaic (PV) panels [4][5][6] are the most remarkable. In the design of an energy management system, there are two main requirements, besides traditional needs of the power electronics converters; (i) the wide voltage-range of operation and (ii) the requirements on the input current harmonic distortion.…”

Section: Introductionmentioning

confidence: 99%

“…In PEMFC applications, it is slightly more complicated to achieve a useful voltage level by means of several fuel cells. In this case, a power electronics converter is suited for obtaining the required voltage level, therefore some power processors have been already proposed, such as those reported in [1, 2]. In [7] a scheme, suited for renewable energy applications, incorporating battery‐integrated DC–DC converters and derived from the basic power converters, has been proposed.…”

Section: Introductionmentioning

confidence: 99%

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Quadratic buck–boost converter with reduced input current ripple and wide conversion range

García–Vite

Rosas-Caro

Martínez-Salazar

et al. 2019

IET Power Electronics

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This study introduces an advanced DC-DC power converter with two main objectives, (i) to achieve a wide range of voltage gain, which means the converter may work over a wide range of input voltage for a fixed desired output voltage and (ii) to achieve a reduced input current ripple. Those features are highly desired in renewable energy applications, for example with photovoltaic panels and fuel cells. The proposed converter was designed in a structure in which the input voltage is composed by the difference of two inductor currents, the currents through inductors are driven with transistors that may have different duty cycle, this allows the current ripple cancellation. In addition, the structure of the converter provides a quadratic type voltage gain, which leads to a wide range of operation voltage. The converter achieves both the wire range of voltage gain and current ripple cancellation, nonetheless, the buck-boost capability is also provided. The input current ripple reduction helps preserve the renewable energy sources since they suffer deterioration when current with considerable ripple is drawn from them. Dynamic and steady-state analysis are performed along with the components sizing. Simulation and experimental results are provided to demonstrate the principle of the proposition. 2 voltage gain of the QBC G B voltage gain of the conventional boost converter Q j transistor jth with j = 1, 2 D j diode jth with j = 1, p, n C j capacitor jth with j = 1, p, n, o L j inductor jth with j = 1, 2, o v C j instantaneous voltage of the capacitor C j i L j instantaneous current of the inductor L j

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Quadratic buck–boost converter with reduced input current ripple and wide conversion range

García–Vite

Rosas-Caro

Martínez-Salazar

et al. 2019

IET Power Electronics

View full text Add to dashboard Cite

show abstract

“…Regarding the IBVM model, A fc0 , B fc0 , C fc0i , C fc0v , D fc0i and D fc0v are the state, input, output and feed-forward matrices at steady-state. Moreover, A fck , B fck , C fcki , C fckv , D fcki and D fckv are the state, input, output and feed-forward matrices around the operation point, as calculated according to [27].…”

Section: A Fc Control Loopmentioning

confidence: 99%

“…Between 170 V and 150 V , the droop setpoint is associated with the linear equation. Finally, if the dc-link voltage is below 150 V , the setpoint reaches the maximum value at 1 p.u.. [27].…”

Section: A Fc Control Loopmentioning

confidence: 99%

Management and Equalization of Energy Storage Devices for DC Microgrids Using a SoC-Sharing Function

et al. 2020

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This paper presents a method for Energy Storage Systems (ESSs) equalization and energy management in dc microgrids (MGs) with slow dynamic sources, such as Fuel Cells (FCs). The three main features of this method are the ESSs equalization, the energy management between the ESSs and the FC, and the ability to suppress fast transients of load, preventing damages in the FC. The equalization is performed using a State of Charge (SoC)-Sharing Function, which is based on a Sigmoid Function (SF). The SoC-Sharing Function is designed similarly to the droop controller, therefore, it is suitable for operation in droop based MGs. Additionally, the ability to suppress fast transients of load is performed by adding a low pass filter in the FC control loop. The main advantages of this method are the SF smooth behavior and the lack of need for a high-speed link of communication between the sources. To evaluate the MG stability, the Lyapunov's Indirect Method is applied in the MG model considering different scenarios varying the SoC and load connected to the dc-link. Finally, the model is validated by comparing simulation and experimental results supplied by a lab-scale prototype. INDEX TERMS Energy storage system, dc microgrid, equalization method, fuel cell, energy management. MAURICIO BICZKOWSKI received the B.S. degree in electrical engineering and the degree of specialist in energy efficiency from the Fed

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“…T HE DC-DC converters are devices that play a fundamental role in the proper operation of microgrids [1]- [3], electric vehicles [4], [5] and satellite applications [6], [7]. For this reason, many advanced studies that are entirely focused on either presenting a new topology or even better describing and exploring an existing topology in terms of modeling and non-ideal analyses have been appearing from the beginning of power electronics research [8], [9].…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Non-Ideal Steady-State Analysis of a Threefold Operation Mode Interleaved-Based DC–DC Converter

et al. 2020

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Formerly in the literature, a new interleaved-based boost converter was devised for multiple input voltage sources purposes. Nevertheless, when only a single input voltage source is connected to the 2-phase version of this converter, it can be seen as a compact interleaved boost with voltage multiplier (cIBVM). A brief description of cIBVM operation as well as the ideal modeling are already discussed in the literature for one specific range of duty-cycle. In this paper, we provide further analysis by considering the conduction and dynamic losses on the analytical model with a single voltage source. Moreover, we also obtained the analytical model considering the entire duty-cycle range showing that the converter can perform either a quadratic, a double or even a symmetric voltage gain depending solely on the switching strategy adopted. The analytical model was obtained using state-space representation and both its accuracy and the effectiveness of the results were validated from a Simulink-based cross validation and a complete sequence of experimental tests. INDEX TERMS DC-DC converters, high step-up conversion ratio, multiple operation modes.

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Evaluation of an interleaved boost converter powered by fuel cells and connected to the grid via voltage source inverter

Cited by 17 publications

References 30 publications

Quadratic buck–boost converter with reduced input current ripple and wide conversion range

Quadratic buck–boost converter with reduced input current ripple and wide conversion range

Management and Equalization of Energy Storage Devices for DC Microgrids Using a SoC-Sharing Function

A Comprehensive Non-Ideal Steady-State Analysis of a Threefold Operation Mode Interleaved-Based DC–DC Converter

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