TY - JOUR
T1 - High Gain Transformer-Less Double-Duty-Triple-Mode DC/DC Converter for DC Microgrid
AU - Bhaskar, Mahajan Sagar
AU - Meraj, Mohammad
AU - Iqbal, Atif
AU - Padmanaban, Sanjeevikumar
AU - Maroti, Pandav Kiran
AU - Alammari, Rashid
PY - 2019/3
Y1 - 2019/3
N2 - High-gain DC/DC converters with high efficiency are needed in dc microgrid owed to the low voltage of power sources, e.g., photovoltaic-cell and fuel-cell. This paper proposed a new high-gain double-duty-triple-mode (DDTM) converter for dc-microgrid applications. The proposed DDTM converter operates in three modes to achieve higher voltage gain without utilizing transformer, coupled inductor, voltage multiplier, and multiple voltage lifting techniques, e.g., triple, quadruple voltage lift. The modes of operation of the converter are controlled through three switches with two distinct duty ratios (double duty) to achieve wide range duty ratio. The operating principle, voltage gain analysis, and efficiency analysis of the proposed converter are discussed in detail and to show its benefits comparison is provided with the existing high-gain converters. The boundary operating condition for continuous conduction mode (CCM) and discontinuous conduction mode (DCM) is presented. The prototype of the proposed converters with 500-W power is implemented in the laboratory and experimentally investigated, which validate the performance and feasibility of the proposed converter. Due to double duty control, the proposed converter can be controlled in different ways and the thorough discussion on controlling of the converter is provided as a future scope.
AB - High-gain DC/DC converters with high efficiency are needed in dc microgrid owed to the low voltage of power sources, e.g., photovoltaic-cell and fuel-cell. This paper proposed a new high-gain double-duty-triple-mode (DDTM) converter for dc-microgrid applications. The proposed DDTM converter operates in three modes to achieve higher voltage gain without utilizing transformer, coupled inductor, voltage multiplier, and multiple voltage lifting techniques, e.g., triple, quadruple voltage lift. The modes of operation of the converter are controlled through three switches with two distinct duty ratios (double duty) to achieve wide range duty ratio. The operating principle, voltage gain analysis, and efficiency analysis of the proposed converter are discussed in detail and to show its benefits comparison is provided with the existing high-gain converters. The boundary operating condition for continuous conduction mode (CCM) and discontinuous conduction mode (DCM) is presented. The prototype of the proposed converters with 500-W power is implemented in the laboratory and experimentally investigated, which validate the performance and feasibility of the proposed converter. Due to double duty control, the proposed converter can be controlled in different ways and the thorough discussion on controlling of the converter is provided as a future scope.
KW - dc microgrid
KW - DC/DC
KW - Double duty
KW - High gain converter
KW - Transformer-less
KW - Triple mode
KW - Wide duty range
UR - http://www.scopus.com/inward/record.url?scp=85063944864&partnerID=8YFLogxK
U2 - 10.1109/ACCESS.2019.2902440
DO - 10.1109/ACCESS.2019.2902440
M3 - Journal article
AN - SCOPUS:85063944864
SN - 2169-3536
VL - 7
SP - 36353
EP - 36370
JO - IEEE Access
JF - IEEE Access
M1 - 8656484
ER -