Investigation of High Frequency AC Power Distribution Benefits for the Automobile Auxiliary Electrical System

Antaloae, Ciprian; Vaughan, N. D.; Marco, James

doi:10.4271/2010-01-1322

Cited by 6 publications

(3 citation statements)

References 5 publications

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“…First, HFAC cables are a comparatively lightweight and efficient. A detailed case study contained within (Antaloae et al, 2010b) highlights a potential copper weight saving of 70% and 30% for a 50kHz, 100V AC bus when compared to 14V and 42V DC systems, respectively. Also, based on the same comparison, the study indicates an increase in power distribution efficiency by 90% and 80%, respectively.…”

Section: Terms and Abbreviationsmentioning

confidence: 99%

“…It is known that at frequencies in the kilohertz range, current will only flow through a smaller conductor area than the one physically available (Sudipta et al, 2007). Consequently, it is deemed that the use of flat electrical conductors is best suited for HFAC power distribution (Antaloae et al, 2010b). HFAC/DC synchronous rectifier devices based on zero-current switching (ZCS) can supply the DC voltage or current fed ancillaries (Sood and Lipo, 1988, Jain et al, 1993, Drobnik, 1994, Mei et al, 2002.…”

Section: Terms and Abbreviationsmentioning

confidence: 99%

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Feasibility of High-Frequency Alternating Current Power for Motor Auxiliary Loads in Vehicles

Antaloae

Marco

Vaughan

2011

IEEE Trans. Veh. Technol.

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This paper presents a feasibility study into the application of a 100V, 50kHz high frequency alternating current (HFAC) network for powering automotive electrical auxiliaries. The study is focused on motoractuated loads, and is divided into two sections. First, the investigation indicates the benefits of replacing low-torque DC motors with lighter and more efficient 400Hz AC machines for applications such as electric fans, fuel pumps or blower motors. A comparative examination of commercially available machines indicates space and weight reduction of more than 60%, and efficiency savings between 25% and 100% are possible. Second, the inquiry evaluates the viability of replacing existing DC/AC inverters with HFAC/AC converters for high-torque AC machines as employed for example in the electric power assisted steering (EPAS) or the heating, ventilation and air conditioning (HVAC) systems. Based on experimental and simulation results for a column-assist EPAS application, employing a three-phase permanent magnet synchronous motor, this study shows that a HFAC drive is expected to reduce the voltage harmonic content below 50kHz by at least 10% compared to the DC/AC inverter. However, the disadvantages of the former drive make it less attractive than the existing DC/AC circuit. Specifically, the EPAS motor torque ripple is expected to be approximately 2% higher compared to the DC counterpart drive. Further drawbacks of the HFAC/AC drive include high MOSFET conduction losses, higher voltage harmonics above 50kHz and complex control requirements of the inverter. Conclusively, significant HFAC advantages for motor loads can be attributed only to machines with a nominal torque capability that is limited to 2Nm. However, given the number of such devices within a typical vehicle, this translates into a possible vehicle mass saving of 30kg and a potential reduction in fuel consumption by 0.8L/100km.

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Section: Terms and Abbreviationsmentioning

confidence: 99%

Section: Terms and Abbreviationsmentioning

confidence: 99%

Feasibility of High-Frequency Alternating Current Power for Motor Auxiliary Loads in Vehicles

Antaloae

Marco

Vaughan

2011

IEEE Trans. Veh. Technol.

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“…Power systems for avionic applications require high frequency, high efficiency conversion systems, making resonant inverters ideal. HFAC-PDS has been developed for a number of specific applications such as contact-less power delivery system [4], desktop computers and telecommunication power supply systems [5][6][7]. It has been proved to be a potential alternative to the dc power distribution system to meet the demand from the semiconductor industry.…”

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confidence: 99%

Linear Quadratic Gaussian Optimal Controlled Two-Stage Inverter for a High-Frequency AC Distribution Power System

Liu

Huang

Guo

2011

AMR

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The linear quadratic Gaussian Optimal control of a two-stage HFAC inverter system has been investigated in this paper. The uncertainty model of the high frequency resonant inverter is developed and analyzed with the input line and load variations taken into design considerations. The proposed control scheme has the advantages of fast response for both input line and load perturbations. It also ensures a wide range of system stability and guarantees robustness of the power converter. Both simulations and experimental results are provided to verify with the theoretical analysis through an experimental prototype with an output power of 500-W operating at 10 KHz and an output voltage of 24 V (peak value).

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A Wide Input Voltage High-Frequency Current-Fed Resonant Inverter for HFAC Electric Vehicle Auxiliary Electrical System

Wang

et al. 2023

2023 IEEE Applied Power Electronics Conference and Exposition (APEC)

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Investigation of High Frequency AC Power Distribution Benefits for the Automobile Auxiliary Electrical System

Cited by 6 publications

References 5 publications

Feasibility of High-Frequency Alternating Current Power for Motor Auxiliary Loads in Vehicles

Feasibility of High-Frequency Alternating Current Power for Motor Auxiliary Loads in Vehicles

Linear Quadratic Gaussian Optimal Controlled Two-Stage Inverter for a High-Frequency AC Distribution Power System

A Wide Input Voltage High-Frequency Current-Fed Resonant Inverter for HFAC Electric Vehicle Auxiliary Electrical System

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