Abstract:High power density for aerospace motor drives is a key factor in the successful realization of the More Electric Aircraft (MEA) concept. An integrated system design approach offers optimization opportunities, which could lead to further improvements in power density. However this requires multi-disciplinary modelling and the handling of a complex optimization problem that is discrete and nonlinear in nature. This paper proposes a multi-level approach towards applying random heuristic optimization to the integr… Show more
“…To maximize a specific feature or performance, modern system design typically involves an optimization process [1]. In power converter design, the performance indices are often identified as volume, weight, cost, and power loss [2].…”
The development and validation of an advanced two-level Voltage Source Back-to-Back Converter model, considering its multi-physics operation, is presented in this paper. Based on a set of input parameters, the proposed model evaluates the converter in terms of input current ripples, transient performance, losses, and total volume. The model is discussed separately in three parts: modulation and control analysis, semiconductor loss estimations and heatsink sizing, and passive components sizing, i.e. for the boost inductors and DC-link capacitor. The performance analysis and loss calculations are verified to be accurate using time-domain simulations and experimental loss measurements. Due to its computational efficiency and accuracy, the proposed model is suitable for use within an optimization design environment.
“…To maximize a specific feature or performance, modern system design typically involves an optimization process [1]. In power converter design, the performance indices are often identified as volume, weight, cost, and power loss [2].…”
The development and validation of an advanced two-level Voltage Source Back-to-Back Converter model, considering its multi-physics operation, is presented in this paper. Based on a set of input parameters, the proposed model evaluates the converter in terms of input current ripples, transient performance, losses, and total volume. The model is discussed separately in three parts: modulation and control analysis, semiconductor loss estimations and heatsink sizing, and passive components sizing, i.e. for the boost inductors and DC-link capacitor. The performance analysis and loss calculations are verified to be accurate using time-domain simulations and experimental loss measurements. Due to its computational efficiency and accuracy, the proposed model is suitable for use within an optimization design environment.
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