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IEEE Power and Energy Technology Systems Journal
Article . 2019 . Peer-reviewed
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Seamless Control of Solar PV Grid Interfaced System With Islanding Operation

تحكم سلس في النظام المتداخل لشبكة الطاقة الشمسية الكهروضوئية مع تشغيل الجزيرة
Authors: Sunaina Singh; Seema Kewat; Bhim Singh; Bijaya Ketan Panigrahi; Manoj Kumar Kushwaha;

Seamless Control of Solar PV Grid Interfaced System With Islanding Operation

Abstract

Este documento presenta una estrategia de control robusta para un sistema de generación distribuida (DGS)basado en energía solar fotovoltaica (PV) con capacidades de transición sin interrupciones desde el modo aislado hasta el modo conectado a la red y viceversa. El DGS propuesto consiste en una matriz solar fotovoltaica, un convertidor elevador de CC-CC, un convertidor de fuente de tensión (VSC) y cargas no lineales locales. En el modo conectado a la red, el VSC regula la tensión del enlace de CC y el convertidor elevador opera la matriz solar fotovoltaica en el punto de máxima potencia. Además, la compensación de potencia reactiva de carga y la eliminación de armónicos con la operación del factor de potencia unitario se logran utilizando el algoritmo de control basado en el signo normalizado de contracción robusta avanzado (ARSNS). Por lo tanto, la distorsión de la corriente de la red se mantiene dentro del estándar IEEE-519 y el estándar IEEE-1547. Bajo la condición de falla de la red, el DGS propuesto opera en un modo aislado sin ninguna unidad de almacenamiento. Las operaciones de sincronización y resincronización de la red se ejecutan a través del algoritmo de control de sincronización inteligente (SYC) con bucle de bloqueo de fase de la transformada de Fourier rápida (FFT-PLL). Los mejores resultados demostraron las capacidades del sistema bajo las condiciones de carga no lineal anormales y desequilibradas de la red.

Ce document présente une stratégie de contrôle robuste pour un système de production distribuée (DGS) solaire photovoltaïque (PV) avec des capacités de transition sans couture du mode îloté au mode connecté au réseau et vice versa. Le DGS proposé se compose d'un réseau photovoltaïque solaire, d'un convertisseur d'amplification CC-CC, d'un convertisseur de source de tension (VSC) et de charges non linéaires locales. En mode connecté au réseau, le VSC régule la tension de liaison CC et le convertisseur d'amplification fait fonctionner le réseau photovoltaïque solaire au point de puissance maximale. De plus, la compensation de puissance réactive de charge et l'élimination des harmoniques avec un fonctionnement de facteur de puissance unitaire sont réalisées à l'aide de l'algorithme de contrôle avancé basé sur le signe normalisé de rétrécissement robuste (ARSNS). Par conséquent, la distorsion du courant du réseau est maintenue dans la norme IEEE-519 et la norme IEEE-1547. Sous la condition de défaut du réseau, le DGS proposé fonctionne dans un mode îloté sans unité de stockage. Les opérations de synchronisation et de resynchronisation du réseau sont exécutées par l'algorithme de contrôle de synchronisation intelligent (SYC) avec une boucle à verrouillage de phase à transformée de Fourier rapide (FFT-PLL). Les résultats du test démontrent les capacités du système dans des conditions de charge anormales et non équilibrées.

This paper presents a robust control strategy for a solar photovoltaic (PV)-based distributed generation system (DGS) with seamless transition capabilities from islanded to the grid-connected mode and vice versa.The proposed DGS consists of a solar PV array, a dc-dc boost converter, voltage source converter (VSC), and local nonlinear loads.In grid-connected mode, VSC regulates the dc-link voltage and the boost converter operates the solar PV array at the maximum power point.Moreover, the load reactive power compensation and harmonics elimination with unity power factor operation are achieved using the advanced robust shrinkage normalized sign (ARSNS)-based control algorithm.Therefore, the grid current distortion is maintained within the IEEE-519 standard and the IEEE-1547 standard.Under the grid fault condition, the proposed DGS operates in an islanded mode without any storage unit.The grid synchronization and resynchronization operations are executed through the intelligent synchronization control (SYC) algorithm with fast Fourier transform phase-locked loop (FFT-PLL).Test results demonstrate the system capabilities under the abnormal grid and unbalanced nonlinear load conditions.

تقدم هذه الورقة استراتيجية تحكم قوية لنظام توليد موزع للطاقة الشمسية الكهروضوئية (الكهروضوئية) مع قدرات انتقال سلسة من الجزيرة إلى الوضع المتصل بالشبكة والعكس بالعكس. تتكون DGS المقترحة من مصفوفة الكهروضوئية الشمسية، ومحول تعزيز DC - DC، ومحول مصدر الجهد (VSC)، والأحمال غير الخطية المحلية. في الوضع المتصل بالشبكة، ينظم VSC جهد وصلة DC ويقوم محول التعزيز بتشغيل مصفوفة الكهروضوئية الشمسية عند أقصى نقطة طاقة. علاوة على ذلك، يتم تحقيق تعويض القدرة التفاعلية للحمل والقضاء على التوافقيات مع تشغيل عامل طاقة الوحدة باستخدام علامة الانكماش القوية القياسية المتقدمة (ARSNS). لذلك، يتم الحفاظ على تشوه تيار الشبكة ضمن معيار IEEE -519 ومعيار IEEE -1547. في ظل حالة عطل الشبكة، تعمل DGS المقترحة في وضع الجزيرة دون أي وحدة تخزين. يتم تنفيذ عمليات مزامنة الشبكة وإعادة المزامنة من خلال التحكم الذكي في المزامنة (خوارزمية YY) بسرعة مع نتائج تحويل القفل السريع (FEEEE -1547).

Keywords

Renewable energy, Artificial intelligence, Grid-connected photovoltaic power system, Jitter, Engineering, Islanding Detection Methods for Distributed Generations, Microgrid Control, Synchronization (alternating current), Inverter, Photovoltaic system, Seismology, Energy, Islanding, Geology, Physical Sciences, Power factor, Control and Synchronization in Microgrid Systems, Energy Storage in Power Systems, Distributed Power Generation, Harmonics, Inverter-Based DGs, Energy Engineering and Power Technology, AC power, Geometry, Distributed Generation, Control (management), Fault (geology), Phase-locked loop, FOS: Electrical engineering, electronic engineering, information engineering, Control theory (sociology), FOS: Mathematics, Electrical and Electronic Engineering, Grid, Topology (electrical circuits), Electronic engineering, Voltage, FOS: Earth and related environmental sciences, Computer science, Maximum power point tracking, Control and Systems Engineering, Electrical engineering, Grid-Connected Inverters, Distributed generation, Mathematics

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
20
Top 10%
Top 10%
Top 10%
hybrid