AC-LFR concept applied to modular photovoltaic power conversion chains

Valderrama-Blavi, Hugo; Alonso, Corinne; Martínez-Salamero, L.; Singer, S.; Estibals, B.; Maixé-Altés, Javier

doi:10.1049/ip-epa:20020479

Cited by 37 publications

(9 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As stated in [21], the output ports of LFR devices behave as power sources and can be connected in series or in parallel [20]. This feature is very useful when adding new elements to the system, since it assures that different sources and loads are decoupled [34].…”

Section: A Converter Selectionmentioning

confidence: 99%

Power Adaptor Device for Domestic DC Microgrids Based on Commercial MPPT Inverters

Valderrama-Blavi

Bosque-Moncusí

Guinjoan

et al. 2013

IEEE Trans. Ind. Electron.

Self Cite

View full text Add to dashboard Cite

This work presents a power adaptor device, referred as Smart Panel Device, allowing the connection of additional energy sources and storage elements to a domestic PV grid-connected system. The adaptor output port is designed to behave as a power source/sink, thus enabling its hot-swap parallel connection to renewable power sources without modifying their Maximum Power Point. Moreover, the adaptor device features a power characteristic with a single controllable MPP and allows the control of the injected power within the operating range of the DC-AC grid-connected inverter. The work presents the design principles of such device by describing the operation of a sliding-mode controlled quadratic boost converter. The proper operation of the device is experimentally verified for several scenarios in a small PV-based microgrid system including a fuel cell stack, a 1 kW three-phase wind turbine, a battery charger-discharger and commercial grid-connected PV inverters.

show abstract

Section: A Converter Selectionmentioning

confidence: 99%

Power Adaptor Device for Domestic DC Microgrids Based on Commercial MPPT Inverters

Valderrama-Blavi

Bosque-Moncusí

Guinjoan

et al. 2013

IEEE Trans. Ind. Electron.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The output parameters simplify the maximum power point tracker controller. Moreover, using this approach [16][17][18][19], only one out of the two output parameters needs to be sensed. This observation is general and applies regardless of the power stage or the realization control algorithm.…”

Section: E the Mpp Via Capacitor Identifiermentioning

confidence: 99%

Maximum Power Point Algorithm in PV Generation: An Overview

Desai

Patel

2007

2007 7th International Conference on Power Electronics and Drive Systems

View full text Add to dashboard Cite

Use of solar energy using photovoltaic (PV) arrays is emphasized increasingly and regarded as an important resource of power energy in the coming years. As the power supplied by PV arrays depends upon the insolation, temperature and array voltage, it is necessary to control the operating point to extract the maximum power from the PV arrays. Number of methods for Maximum Power Point Tracking (MPPT) has been reported in the literature. This paper aims to give a comprehensive comparison of different MPPT algorithms in terms of their tracking efficiencies, cost effectiveness, complexity of realization etc. Here the methods are classified according to the parameters they use in finding MPP, viz, PV voltage, PV current, output voltage, and output current.

show abstract

“…In this case the arrays maximum power is transferred to the load, regardless of load characteristics. Based on this concept, a practical system (suitable for ac application as well) was constructed [8].…”

Section: Introductionmentioning

confidence: 99%

A Pure Realization of Loss-Free Resistor

Singer

Ozeri

Shmilovitz

2004

IEEE Trans. Circuits Syst. I

Self Cite

View full text Add to dashboard Cite

Realization of a loss-free resistor element (i.e., element with resistive input characteristic and yet loss-free) by means of switched mode converters operated in discontinuous current conduction mode (DCM) is presented. Practically, the input characteristic is not pure resistive due to the ripple and filtering effects. A method which enables reduction of the ripple to negligible values and the elimination of the input filter is presented, which facilitates realization of practical circuits with nearly pure input resistive characteristic. This approach is based on the operation of a group of converters operating in power sharing interleaved mode.Index Terms-Active power factor, gyrator, loss-free resistor (LFR), low harmonics rectifier, time variable transformer (TVT), two-port power conservative, unity power factor.

show abstract

AC-LFR concept applied to modular photovoltaic power conversion chains

Cited by 37 publications

References 3 publications

Power Adaptor Device for Domestic DC Microgrids Based on Commercial MPPT Inverters

Power Adaptor Device for Domestic DC Microgrids Based on Commercial MPPT Inverters

Maximum Power Point Algorithm in PV Generation: An Overview

A Pure Realization of Loss-Free Resistor

Contact Info

Product

Resources

About