A Segmented Power-Efficiency Coordinated Control Strategy for Bidirectional Wireless Power Transmission Systems With Variable Structural Parameters

Tan, Linlin; Zhang, Zhenxing; Zhang, Ziqi; Deng, Bo; Zhang, Ming; Li, Jiacheng

doi:10.1109/access.2018.2852638

Cited by 11 publications

(5 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…But it is not a rule to use this topology only at a high power. The SS compensation is used and intensively investigated at different resonance frequencies from kilohertz [49], [58]- [69] to megahertz [70]- [72], and power from several watts [62], [72], [73] to tens of kilowatts [21], [55], [74].…”

Section: A Analysis Of Basic Topologiesmentioning

confidence: 99%

Compensation Topologies in IPT Systems: Standards, Requirements, Classification, Analysis, Comparison and Application

et al. 2019

View full text Add to dashboard Cite

Wireless power transfer devices are becoming more relevant and widespread. Therefore, an article is devoted to a review, analysis and comparison of compensation topologies for an inductive power transfer. A new classification of topologies is developed. A lot of attention is paid to the problems of the physical fundamentals of compensation work, standards, safety, and five main topology requirements. It is determined, that topologies with the series primary compensating are the most effective in the IPT for charging devices among the four classical schemes. The series-parallel solution is recommended in case of the low output voltage, minimum size of a secondary side coil is achievable. The series-series solution does not depend on the magnetic coupling coefficient and the load on the resonance frequency. For the convenience of displaying and understanding the information, the comparison results are listed in the tables, graphs and dependencies. The main suitable topologies for a certain application are defined. The given conclusions provide a ''one-stop'' information source and a selection guide on the application of compensation topologies both in terms of devices and in terms of power level that is the main value of this paper. During literature analysis and recent trends in the market for wireless power transmission devices, the main possible further ways of developing topologies are underlined. First of all, it concerns increasing the frequency of resonance of compensation topologies, the use of multilevel / multi-pulse / multicoils structures, the study of existing high-frequency semiconductors and the development of the semiconductor and magnetic materials.

show abstract

Section: A Analysis Of Basic Topologiesmentioning

confidence: 99%

Compensation Topologies in IPT Systems: Standards, Requirements, Classification, Analysis, Comparison and Application

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The high frequency choke inductance and the filter inductance are, It can be seen from the equation (14), L≥132.65 μH. And the actual inductance value should be greater than the calculated value.…”

Section: Circuit Parametersmentioning

confidence: 95%

“…The circuit of the traditional bidirectional wireless charging system is composed of a fully controlled H bridge circuit and a resonant network [11]- [12], which mainly used in the electric vehicle industry [13]- [14]. It is well known, the full controlled H Bridge circuit produces more harmonic pollutions during the turn-on and turn-off of the power semiconductor devices, which needs the higher requirement for the latter EMI filter circuit and resonant network [15].…”

Section: Introductionmentioning

confidence: 99%

Study on Novel Bidirectional AC-DC Converter Circuit of the Wireless Charging for Portable Devices

2020

View full text Add to dashboard Cite

In this paper, a novel symmetrical topology for the small power high frequency bidirectional AC-DC converter has been proposed, which is applied to the bi-directional wireless power transmission system based on the magnetic coupling resonance. It has dual functions of the inverter and rectifier. The research is mainly reflected in the following aspects: First, based on analyzing the principle of the wireless power bidirectional transmission technology, the operation mechanism of the topology circuit is analyzed emphatically. Second, the feasibility of the designed converter is verified by the simulation of the PSPICE software. Third, the hardware system has been operated at 200 kHz in the modes of the constant current, the constant voltage and the constant resistance, respectively. The results show the maximal output power of the designed circuit is 7.8 W, meeting the design requirement. This circuit has the advantages of the simple circuit structure and simple control. It's suitable for the bidirectional wireless power charging of the small power portable devices.

show abstract

“…where R o is the equivalent DC load resistance and R L is the equivalent input resistance seen into the full-bridge rectifier with output filter C o . From (24) and (25), R L and I 2 are deduced as follows, respectively:…”

Section: A System Structure and Secondary-side Rectifier Modelmentioning

confidence: 99%

“…Dual-side power control strategies via phase-shift control in semi-active rectifier and H-bridge converter are proposed in [23], [24], which dual-side communication is inevitable. To eliminate dual-side wireless communication, authors in [25] adopts front-end load estimation for power tracking control but it is suitable for stationary WPT systems.…”

Section: Introductionmentioning

confidence: 99%

Output Power Stabilization for Wireless Power Transfer System Employing Primary-Side-Only Control

Zhu

Zhang

2020

IEEE Access

View full text Add to dashboard Cite

The output power of a wireless power transfer (WPT) system depends highly on the load and the coupling conditions, which are variable in practical applications generally. In order to attain stable output power with high transfer efficiency under various coupling condition and load, this paper proposes a seriesseries compensated WPT system based on parity-time (PT) symmetry with front-end DC-DC converter and a novel primary-side-only control strategy. The strategy comprises the negative resistance control of PT-symmetric circuit, the online load identification approach by PT-symmetry, and the power closed-loop control method. The advantages are that the mutual inductance information is not needed, and dual-side wireless communication as well as the secondary-side control circuit is avoided, which compresses the volume of the secondary side, simplifies the control algorithm, and improves the robustness of the system. With the proposed primary-side-only control strategy, the output power is coupling-independent and can automatically stabilize at specified values over reasonable variations both in coupling coefficient and load. The experimental results obtained from a prototype are included. They confirm the proposed control strategy and indicate that system can stably output 200 W and 400 W with the maximum error 4.10% and 3.40% respectively when the coupling coefficient and loads vary, and achieves high overall efficiency at 91.9%. INDEX TERMS Wireless power transfer (WPT), load identification, coupling-independent, stable output power, high efficiency, parity-time (PT) symmetry.

show abstract

A Segmented Power-Efficiency Coordinated Control Strategy for Bidirectional Wireless Power Transmission Systems With Variable Structural Parameters

Cited by 11 publications

References 30 publications

Compensation Topologies in IPT Systems: Standards, Requirements, Classification, Analysis, Comparison and Application

Compensation Topologies in IPT Systems: Standards, Requirements, Classification, Analysis, Comparison and Application

Study on Novel Bidirectional AC-DC Converter Circuit of the Wireless Charging for Portable Devices

Output Power Stabilization for Wireless Power Transfer System Employing Primary-Side-Only Control

Contact Info

Product

Resources

About