PWM inverter output filter cost to losses trade off and optimal design

This paper describes how to design the output filter of a PWM inverter used in a Uninterruptible Power Supply. Several constraints apply to this design: physical limitations of all material and components, output waveform quality, losses, cost, ... All models used in the design process are described: semiconductor, inductor and capacitor losses, cost, Total Harmonic Distortion (THD), short circuit behavior... Input parameters are control law, switching frequency, inductor design parameters (number of turns and magnetic circuit) and capacitor values. Based on these design models, optimization is carried out, and cost-losses trade-off curves are deduced. Two power levels (30 kVA and 300 kVA) are taken as design example, with the same models, in order to show the robustness of the method.

[1]  G. Refai-Ahmed,et al.  Heat transfer modelling of toroidal inductors: Effect of orientations , 1998, ITherm'98. Sixth Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (Cat. No.98CH36208).

[2]  Stephen J. Wright,et al.  Numerical Optimization , 2018, Fundamental Statistical Inference.

[3]  Kalyanmoy Deb,et al.  Multi-objective optimization using evolutionary algorithms , 2001, Wiley-Interscience series in systems and optimization.

[4]  D.K. Lindner,et al.  Design optimization of a boost power factor correction converter using genetic algorithms , 2002, APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335).

[5]  D. Boroyevich,et al.  Power converter design optimization , 2004, IEEE Industry Applications Magazine.

[6]  M. Ahmad.  A simple scheme for loss angle measurement of a capacitor , 2004, IEEE Transactions on Energy Conversion.

[7]  D. Boroyevich,et al.  Design of a boost power factor correction converter using optimization techniques , 2004, IEEE Transactions on Power Electronics.

[8]  H. Morel,et al.  Power converter's optimisation and design. Discrete cost function with genetic based algorithms , 2005, 2005 European Conference on Power Electronics and Applications.