Traditionally, Single-Input, Multi-Output (SIMO) DC-DC converters - a category of multiport converters, have been used for multiple supplies with different output levels in hybrid and electric vehicles in both their isolated and non-isolated versions. The emerging idea is to use one controllable switch to avoid synchronisation problem among switches. A key challenge lies in modeling the SIMO converters due to its differential algebraic nature and increased state-space dimension. This work proposes a port-Hamiltonian approach for modeling the SIMO converters. Controller design involves both current and voltage control of non-isolated SIMO converters in order to achieve largesignal stability and steady-state accuracy of multiple outputs. Simulations are performed on a DC-DC SEPIC-Boost converter to compare the time-domain and the frequency-domain responses of the states in the proposed model w.r.t. the actual circuit model. The response of the converter to large variations in the load is also simulated.
Modeling and Control of Single-Input, Multi-Output DC-DC Converters in Port-Controlled Hamiltonian Framework
31.07.2024
1508073 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Energy Shaping of Port-Hamiltonian Systems by Using Alternate Passive Input-Output Pairs
British Library Online Contents | 2010
|British Library Online Contents | 2010
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