Modeling of a three-phase inductive power transfer system in phasor domain for fast simulation

2015 IEEE Electrical Power and Energy Conference (EPEC)

et al. 2015

High reliability and ever increasing cost-effectiveness of power electronics components and digital processors have resulted in high interests in inductive power transfer techniques. The interest is directed mostly at electric and hybrid passenger car battery charging, although the first solutions have already been conceptualized and turned into homologated products for much higher power levels for bus and light rail vehicles. Transformers used for automotive applications have a large air gap and relatively low coupling coefficients. High levels of output power require tuning techniques in order to eliminate or decrease the associated reactive power. In this paper a parallel load side compensation technique and its consequences are described. The analysis is done by utilizing a novel method based on Boucherot Bridge model for the wireless power transformer. The analytical results are confirmed by circuit simulation using the transformer parameters derived from finite element electromagnetic analysis.

Section: Design Examplementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of parallel load-side compensation in wireless power transfer

2015 IEEE Electrical Power and Energy Conference (EPEC)

et al. 2015

“…As the primary and secondary currents in SP compensation are in phase [3] the secondary current is advanced with respect to primary current by:…”

Section: B Series-parallel Case (Sp)mentioning

confidence: 99%

“…Inductive Power Transfer (IPT) has recently become the focus of many academic scholars and industrial researchers [1,2,3]. The benefits of IPT systems include convenience, allweather functionality with no impact from humidity, dust, chemicals or pollution, no electrocution hazard, crash safety, ruggedness and ease of integration to electric and hybrid cars.…”

Section: Introductionmentioning

confidence: 99%

Boucherot Bridge based zero reactive power inductive power transfer topologies with a single phase transformer

2014 IEEE International Electric Vehicle Conference (IEVC)

et al. 2014

High reliability and cost effectiveness of power electronics components has resulted in very high interest in inductive power transfer techniques among academic and industrial professionals. Since the major interest is directed towards automotive industry for battery charging, a special transformer with a large gap and relatively large leakage inductance is used. In order to achieve desired voltage levels high frequencies in the order of 20 to 100 kHz are preferred, producing high levels of reactive power which if not compensated limits power and efficiency. Thus, there is a need to tune or compensate the significant inductance of the windings. There are four basic transformer tuning topologies reported in literature, each one being a combination of series and/or parallel. This paper presents all four topologies and associated input to output dependences based on a Boucherot Bridge model of a transformer.

“…Technical advantages such as all-weather operability, no electrocution hazard during accidents, optimizing the onboard battery pack, minimal maintenance due to ruggedness are some of the aspects of IPT. Also, there are human factor benefits such as convenience for all drivers, no chance of forgetting to plug in, no special training for drivers, and minimized vandalism possibility [8][9][10].…”

Section: Introductionmentioning

confidence: 98%

A general approach to tuning of a dual secondary winding transformer for inductive power transfer

2015 IEEE Transportation Electrification Conference and Expo (ITEC)

2015

A practical method for analysis and tuning of the inductive-power-transfer (IPT) systems with dual secondary windings is presented. The frequency-domain analysis of the complete system in steady-state operation provides flexibility of any combination of secondary side compensation schemes. The proposed method facilitates understanding of IPT systems through a systematic approach to design and tuning of a practical power transfer solution.