Design and Optimization of a High Power Density and Efficiency Boost PFC

Year 2017, Volume: 5 Issue: 2, 50 - 59, 01.09.2017

Bekir Fıncan Murat Yılmaz , Alper Goynusen Hayri Kerem Erenay

https://doi.org/10.17694/bajece.334355

Abstract

Nowadays electrical
appliances have been becoming more and more popular every day in our life, and
the systems that have more power density and that use energy efficiently and
that improve the quality of the energy are required more. Especially with the
decisions and regulation changes of the United States and the European Union in
recent years, it has become compulsory to replace low efficiency electric motor
drive systems with high efficiency permanent magnet electric motors and
drivers, and as a result permanent magnet motors that have high efficient field
orientation control algorithms technologies have begun to be chosen. Low cost
uncontrolled rectifiers that have high power factor have become a necessity
with the need for DC bus. In such systems with inherently nonlinear
characteristics, the need for Power Factor Correction (PFC) circuit has been
increasing, and Boost PFC (BPFC) which increase the input voltage are widely
preferred for low/medium power applications. Therefore, distortion harmonics
and high frequency noises are reduced according to standards such as CSRIP
Class B – TS EN 61000-3-2 and also output voltage remains constant, becoming
more than peak amount of the input grid voltage. In that study, it is designed
that BPFC that has 1,150W output power level by increasing system's power
density and efficiency. The system cost is reduced by decreasing the
requirement of EMI filters and heatsink size, since using SiC (Silicon Carbide)
diode and optimizing the system contribute increasing efficiency and power
density. The most efficient Boost PFC design is realized at the lowest cost by
performing detailed design, loss and cost analysis for each component used. The
Boost PFC with full system efficiency of 95.5% at full load is obtained by
model validation done by comparing the simulation results with the experimental
results obtained by hardware implementation.

Keywords

Active filter, harmonic, efficiency, power density, power factor correction, SiC diode

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