TY - JOUR
T1 - Robust μ-optimal Control Synthesis for Modular Multiport DC-DC Converter
AU - Farajdadian, Shahriar
AU - Hajizadeh, Amin
AU - Soltani, Mohsen
AU - Bauer, Pavol
AU - Vahedi, Hani
PY - 2025
Y1 - 2025
N2 - Owing to the intermittent characteristics of renewable energy sources (RESs) and the unpredictability of load demand, integrating multiple RESs and energy storage systems (ESSs) has become imperative. Modular Multiport Converters (MMPC) have emerged as a viable solution to meet this need, offering superior performance, efficiency, and reliability compared to multiple SISO DC/DC converters. To this end, this paper presents a comprehensive model of an MMPC, which is bidirectional and capable of operating in both step-up and step-down modes. Following the derivation of the converter model, a robust μ-controller using the D − G − K iterative procedure is designed. This controller addresses the cross-coupling challenges inherent in MIMO systems and effectively overcomes the parametric uncertainties associated with the converter. Finally, hardware-in-the-loop (HIL) test results derived from OPAL-RT 4610, and experimental results from a prototype are used to validate this control approach.
AB - Owing to the intermittent characteristics of renewable energy sources (RESs) and the unpredictability of load demand, integrating multiple RESs and energy storage systems (ESSs) has become imperative. Modular Multiport Converters (MMPC) have emerged as a viable solution to meet this need, offering superior performance, efficiency, and reliability compared to multiple SISO DC/DC converters. To this end, this paper presents a comprehensive model of an MMPC, which is bidirectional and capable of operating in both step-up and step-down modes. Following the derivation of the converter model, a robust μ-controller using the D − G − K iterative procedure is designed. This controller addresses the cross-coupling challenges inherent in MIMO systems and effectively overcomes the parametric uncertainties associated with the converter. Finally, hardware-in-the-loop (HIL) test results derived from OPAL-RT 4610, and experimental results from a prototype are used to validate this control approach.
KW - DC/DC converter
KW - Modular converter
KW - Multiport Converter
KW - Robust control
KW - μ-synthesis
UR - http://www.scopus.com/inward/record.url?scp=105016718031&partnerID=8YFLogxK
U2 - 10.1109/ACCESS.2025.3610203
DO - 10.1109/ACCESS.2025.3610203
M3 - Article
AN - SCOPUS:105016718031
SN - 2169-3536
VL - 13
SP - 165157
EP - 165172
JO - IEEE Access
JF - IEEE Access
ER -
