A Direct Three-Phase AC–AC Matrix Converter-Based Wireless Power Transfer System for Electric Vehicles

Wang, Rutian; Huang, Min; Lu, Chongyi; Wang, Weiquan

doi:10.3390/app10072217

Cited by 6 publications

(4 citation statements)

References 21 publications

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“…Although different realizations have been proposed, there is always room for an innovative low-cost realization with additional feature [20]− [23]. For single phase AC-AC conversion, these converters suffer from a current sag phenomenon during input mains zero crossing which is well documented in literature [13]− [18]. The current sag results in a drop of transmitted power even though the load is present.…”

Section: Introductionmentioning

confidence: 99%

“…This is a major technical bottleneck, limiting employment of single-phase matrix converter topologies in practical products. Researchers have proposed three phase power supply as a solution to this problem [17], [18]. But single-phase wireless power transfer systems make up a major segment of wireless power transfer products, ranging from consumer battery charging to level 2 electric vehicle battery charging.…”

Section: Introductionmentioning

confidence: 99%

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single-phase bidirectional AC-AC converter with H-bridge energy buffer for wireless power transfer applications

Hasan

Saha

2022

IJPEDS

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This paper introduces a single-phase bidirectional AC-AC Matrix type converter for wireless power transfer (WPT) applications. The proposed converter converts mains 50 Hz alternating current (AC) directly to high frequency 85 kHz AC without an intermediate direct current (DC) conversion stage. A minimum cost realization of only two bidirectional AC switches comprised each of two semiconductor device and one gate drive signal is employed. The converter operation modes are quantum energy injection and circulating self-oscillation. Elimination of the DC link introduces a sag in the power transfer during the zero crossing of input AC mains, which is well documented in literature. A novel H-bridge buffer structure is introduced which eliminates the power sag by storing energy during mains peak and delivering energy during the zero-crossing period. The converter operates with inherent zero current switching, thus achieving a low switching loss and electro-magnetic interference. The control feature ensures that the converter can be used for both static and dynamic wireless charging applications. The bidirectional power transfer capability ensures that the system can operate in both grid to vehicle (G2V) and vehicle to grid (V2G) power transfer modes. The proposed converter design is analyzed analytically and verified through thorough simulation study.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

single-phase bidirectional AC-AC converter with H-bridge energy buffer for wireless power transfer applications

Hasan

Saha

2022

IJPEDS

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“…For the aforementioned reasons, environmental and operational factors impacting the longevity of power converters, particularly high-power ones, are given special consideration, with a focus on DC-link capacitors [21]. An intriguing way to lower the price and size of power converters is to produce them without huge capacitors in their design (DC-link) [22,23]. Another complexity of two-stage DC-link AC/AC converters is the use of complicated pulse width modulation (PWM) techniques.…”

Section: Introductionmentioning

confidence: 99%

A Direct Single-Phase to Three-Phase AC/AC Power Converter

et al. 2022

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The traditional DC-link indirect AC/AC power converters (AC/DC/AC converters) employ two-stage power conversion, which increases the circuit complexity gate driving challenges, placing an excessive burden on the processor while implementing complex switching modulation techniques and leads to power conversion losses due to the use of a large amount of controlled power semiconductor switches. On the contrary, the traditional direct AC/AC voltage controllers, as well as frequency changers, suffer from high total harmonic distortion (THD) problems. In this paper, a new single-phase to three-phase AC/AC step-down power converter is proposed, which utilizes a multi-linking transformer and bilateral triode thyristors (TRIACs) as power semiconductor switches. The proposed direct AC/AC power converter employs single-stage power conversion, which mitigates the complexity of two-stage DC-link indirect AC/AC converters and traditional single-stage AC/AC frequency changers. Instead of using high-frequency pulse width modulated gate driving signals, line frequency gate pulses are used to trigger the TRIACs of the proposed AC/AC converter, which not only aids in reducing the power loss of the converter but also mitigates the cost and complexity of gate driver circuits. The proposed AC/AC converter reduces the THD of the output voltage significantly as compared to traditional direct AC/AC frequency changers. The performance of the proposed AC/AC converter is validated against RL and induction motor load in terms of overall THD and individual harmonic components through MATLAB/Simulink environment. A reduced-scale laboratory prototype is built and tested to evaluate the performance of the proposed AC/AC power converter. The experimental and simulation outcomes reveal the feasibility and excellent features of the proposed single-phase to three-phase AC/AC converter topology.

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“…The popularity of the matrix converter increased in the last years [1,2] due to the possible advantages over the standard back-to-back converters (BBC). The improvement in the semiconductor industry, especially in the field of Silicon Carbide (SiC) and Gallium Nitride (GaN) transistors and the small footprint of the component, has opened new ways to build a compact and high-power density matrix converter.…”

Section: Introductionmentioning

confidence: 99%

Compact 3 × 1 Matrix Converter Module Based on the SiC Devices with Easy Expandability

Resutik

Kascak

2021

Applied Sciences

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This paper discusses a new approach for building a compact all-in-one matrix converter module based on SiC semiconductors arranged in a common source connection. The used transistors are in the D2PAK package. The design of the module is divided into two parts, namely a power module designed at one-layer aluminum substrate printed circuit board (PCB) to ensure good thermal performance and voltage isolation between the module and heatsink. The second board is responsible for the SiC driving and is mounted at the top of the power PCB and consists of metal-oxide semiconductor field effect transistor (MOSFET) drivers, isolated power supplies, a current direction detection circuit, and current value sensors. In the paper, the proper function of the SiC MOSFET drivers, current direction detection, and current measurement sensors were evaluated. Finally, 3D design together with the final prototype is presented. The modules contain three bidirectional cells for interconnection three input voltage sources and one output phase. The uniqueness and novelty of the presented module are the compactness and easy expandability of the module to achieve higher power outputs and multiphase applications such as five phase machines.

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A Direct Three-Phase AC–AC Matrix Converter-Based Wireless Power Transfer System for Electric Vehicles

Cited by 6 publications

References 21 publications

single-phase bidirectional AC-AC converter with H-bridge energy buffer for wireless power transfer applications

single-phase bidirectional AC-AC converter with H-bridge energy buffer for wireless power transfer applications

A Direct Single-Phase to Three-Phase AC/AC Power Converter

Compact 3 × 1 Matrix Converter Module Based on the SiC Devices with Easy Expandability

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