INVERTER AND MAIN CONTROLLER FOR PHOTOVOLTAIC POWER GENERATION SYSTEM, AND OPERATING METHOD FOR PHOTOVOLTAIC SYSTEM

According to an embodiment of the present invention, provided is an operating method for a photovoltaic power generation system, the operating method comprising the steps of: determining the occurrence of an abnormal situation of the photovoltaic power generation system; gradually ramp-voltage-downi...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: YUN, Ju Hwan, SHIN, Ji Won, PARK, Il Kyu, CHOI, Yun Suk, PARK, Jong Hyun
Format: Patent
Sprache:eng ; fre ; kor
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:According to an embodiment of the present invention, provided is an operating method for a photovoltaic power generation system, the operating method comprising the steps of: determining the occurrence of an abnormal situation of the photovoltaic power generation system; gradually ramp-voltage-downing an output voltage of at least one of a plurality of module level power electronics (MLPE); deriving a maximum power point tracking (MPPT) control voltage of an inverter on the basis of the output voltage of the at least one MLPE; and shutting down all of the plurality of MLPE. La présente invention concerne, selon un mode de réalisation, un procédé de fonctionnement pour un système de production d'énergie photovoltaïque, le procédé de fonctionnement comprenant les étapes consistant : à déterminer l'apparition d'une situation anormale du système de production d'énergie photovoltaïque ; à abaisser progressivement la tension en rampe d'une tension de sortie d'au moins un élément électronique de puissance de niveau de module d'une pluralité d'éléments électroniques de puissance de niveau de module (MLPE) ; à dériver une tension de commande de suivi de point de puissance maximale (MPPT) d'un onduleur sur la base de la tension de sortie du ou des MLPE ; et à arrêter la totalité de la pluralité de MLPE. 본 발명의 일 실시예에 따르면, 태양광 발전 시스템의 동작 방법으로서, 상기 태양광 발전 시스템의 이상 상황 발생을 판단하는 단계; 복수의 모듈 단위 전력 변환 장치(Module Level Power Electronics, MLPE) 중 하나 이상의 MLPE의 출력 전압을 점진적으로 강압(ramp voltage down)시키는 단계; 상기 하나 이상의 MLPE의 출력 전압에 기초하여, 인버터의 최대 전력점 추적(Maximum Power Point Tracking, MPPT) 제어 전압이 유도되는 단계; 상기 복수의 MLPE가 모두 셧 다운되는 단계; 를 포함한느 태양광 발전 시스템의 동작 방법이 제공된다.