Transformerless Photovoltaic Grid-Connected Inverters

Beschreibung

This book focuses on a safety issue in terms of leakage current, builds a common-mode voltage analysis model for TLIs at switching frequency scale and develops a new modulation theory referred as “Constant Common-Mode Voltage Modulation” to eliminate the leakage current of TLIs. Transformerless Grid-Connected Inverter (TLI) is a circuit interface between photovoltaic arrays and the utility, which features high conversion efficiency, low cost, low volume and weight. The detailed theoretical analysis with design examples and experimental validations are presented from full-bridge type, half-bridge type and combined topologies. This book is essential and valuable reference for graduate students and academics majored in power electronics; engineers engaged in developing distributed grid-connected inverters; senior undergraduate students majored in electrical engineering and automation engineering.
This book focuses on a safety issue in terms of leakage current, builds a common-mode voltage analysis model for TLIs at switching frequency scale and develops a new modulation theory referred as “Constant Common-Mode Voltage Modulation” to eliminate the leakage current of TLIs. Transformerless Grid-Connected Inverter (TLI) is a circuit interface between photovoltaic arrays and the utility, which features high conversion efficiency, low cost, low volume and weight. The detailed theoretical analysis with design examples and experimental validations are presented from full-bridge type, half-bridge type and combined topologies. This book is essential and valuable reference for graduate students and academics majored in power electronics; engineers engaged in developing distributed grid-connected inverters; senior undergraduate students majored in electrical engineering and automation engineering.

Presents the grid-connected inverter structure without transformers that has high efficiency and low cost but incurs issues of leakage current and DC current injection Offers the common-mode voltage modulation theory invented by the author to maintain common-mode voltage constant for transformer-less grid-connected inverters Reviews the DC current rejection strategies comprehensively from three categories

Autor*in

Huafeng Xiao

Themen in »Transformerless Photovoltaic Grid-Connected Inverters«

Renewable Energy Distributed Photovoltaic Generation Transformerless Inverter High Conversion Efficiency Leakage Current Common-Mode Voltage Clamping Circuit Common-Groud Circuit

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