Publication:
DC capacitance reduction in photovoltaic inverters based on PV voltage feed-forward compensation

Date

2021

Director

Publisher

IEEE
Acceso abierto / Sarbide irekia
Contribución a congreso / Biltzarrerako ekarpena
Versión aceptada / Onetsi den bertsioa

Project identifier

AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-110956RB-I00/ES/recolecta

Abstract

In the case of photovoltaic (PV) inverters, an adequate input voltage regulation is fundamental to maximize or limit the power. When employing the traditional control, the input capacitance requires to be oversized in order to reduce the influence of the PV generator and achieve a stable control in the whole operating point. This paper proposes a voltage control method which permits reducing the capacitance by a factor of 5, thereby reducing the system cost. The control includes a feed-forward compensation of the PV voltage, making it possible to achieve a fast and stable control with a simple implementation. The proposed method is verified by simulation, showing the problems of the traditional control and the superior performance of the proposed control.

Description

Keywords

Photoltaic converters, Photovoltaic power systems, Small-signal modeling, Virtual resistance, Voltage control

Department

Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren / Institute of Smart Cities - ISC / Ingeniería Eléctrica, Electrónica y de Comunicación

Faculty/School

Degree

Doctorate program

item.page.cita

Urtasun, A.; Sanchis, P.; Marroyo, L.. (2021). DC capacitance reduction in photovoltaic inverters based on PV voltage feed-forward compensation. 1 IEEE

item.page.rights

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