A Novel Concept of a Single-Phase Cascaded H-Bridge Multilevel Inverter for Grid-Connected Photovoltaic Systems

Authors: Vu Hoang Phuong*


A single-phase cascaded H-bridge multilevel inverter has several DC links that allows the system to have the capability of independently voltage control to track the maximum power point in each string connected to each H-bridge. This characteristic can increase the efficiency of the PV system in case of mismatch in the strings, due to unequal solar radiation and temperature. This paper presents a generalized design method for controllers of a multi-loop control scheme applying for grid-connected photovoltaic systems using a single-phase cascaded H-bridge multilevel inverter. The simulation results were carried out by Matlab/Simpower Systems to validate the proposed method under different operating conditions of PV.


Cascaded H-bridge multilevel inverter, Grid-connected photovoltaic systems, A multi-loop control scheme
Pages : 19-24

Related Articles:

Authors : Hồ Mạnh Linh*, Tạ Sơn Xuất, Nguyễn Khắc Kiểm , Đào Ngọc Chiến
Authors : Nguyễn Anh Thái*, Đào Văn Lân, Hoàng Văn Phúc
Authors : Lê Thanh Hương*, Trần Trọng Nhân
Authors : Đỗ Trọng Hiếu*, Dương Minh Đức*, Hoàng Văn Thắng, Trần Văn Tùng, Nguyễn Trí Kiên
Authors : Đỗ Trọng Anh, Đặng Khánh Hòa, Thân Việt Đức, Vũ Song Tùng, Lê Dũng, Nguyễn Tiến Dũng*
Authors : Phạm Văn Trường*, Trần Thị Thảo*, Trịnh Công Đồng
Authors : Vu Duy Hai*, Lai Huu Phuong Trung*, Phan Dang Hung, Dao Viet Hung, Dao Quang Huan, Chu Quang Dan