Low Voltage Ride-Through Capability of a Novel Grid Connected Inverter Suitable for Transformer-less solar PV grid interface

被引：0

作者：

Rajeev, Mini ^{[1
]}

Agarwal, Vivek ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Elect Engn, Mumbai, Maharashtra, India

来源：

2018 8TH IEEE INDIA INTERNATIONAL CONFERENCE ON POWER ELECTRONICS (IICPE) | 2018年

关键词：

LVRT; inverter; p-q theory; solar PV; transformer-less; PHOTOVOLTAIC SYSTEMS;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In order to face the challenges due to the large-scale integration of PV inverters on the distribution side, the grid connected Photo Voltaic inverters are expected to provide certain ancillary services in future. In this paper, the Low Voltage Ride Through (LVRT) that can be provided by a Cuk derived novel inverter topology, 6sw-CDTI, suitable for transformer-less grid-PV interface, is presented. With the help of single phase instantaneous p-q theory, the grid current reference is generated for LVRT. A feed-forward is added in the inverter control for improved dynamic response. Experimental results obtained from a 200W laboratory prototype, proved the LVRT capability under voltage sag condition without affecting the common mode voltage variation. This is highly advantageous for a transformer-less grid interface.

引用

页数：6

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