Output voltage control of the SP topology IPT system using a primary side controller

Nutwong, Supapong; Sangswang, Anawach; Naetiladdanon, Sumate

doi:10.1109/ecticon.2016.7561393

Cited by 10 publications

(6 citation statements)

References 10 publications

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“…For a constant magnetic coupling system, the magnitude of the output voltage of the SP topology IPT depends on the magnitude of the primary current which can be controlled by the primary input voltage [82]. In the SP topology with an increase of mutual inductance the efficiency of the system increases [7], [81].…”

Section: A Analysis Of Basic Topologiesmentioning

confidence: 99%

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

et al. 2019

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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.

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Section: A Analysis Of Basic Topologiesmentioning

confidence: 99%

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

et al. 2019

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“…To regulate the inverter output voltage, the phase-shift control [24,25] is a commonly used technique in the WPT system because the output voltage contains no DC component. Moreover, its harmonic contents are less than those of asymmetrical duty cycle (ADC) control [26] and asymmetrical clamped mode (ACM) control technique [27].…”

Section: Introductionmentioning

confidence: 99%

A Novel Output Power Control of Wireless Powering Kitchen Appliance System with Free-Positioning Feature

et al. 2018

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To achieve a free-positioning wireless power transfer (WPT) system, the output power must be regulated throughout the operation. This paper presents a novel output power control of a WPT system, based on the model predictive control (MPC). The output power is predicted by utilizing the system's mathematical model. The optimal duty cycle for a desired output power is obtained through the minimization of the objective function, which is simple and easy to implement, with no need for gain tuning. The proposed controller is implemented on the primary side, without any measurement or communication devices on the secondary side. This reduces the cost, size, and complexity of the WPT system. The load resistance and mutual inductance identification method is also introduced. It is based on the reflected impedance knowledge, where only the information of primary current is required. Experimental results of the output power step response show better performance compared with conventional Proportional-Integral (PI) control. The proposed controller is experimentally validated on a 200 W kettle. The output power can be kept constant at 200 W while the kettle is laterally moved. With the proposed controller, the kettle can be placed freely up to 7 cm from the align position, which is 63.64% of the primary coil's outer radius.

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“…The controller was designed based on fixed frequency and variable duty ratio control. Some of the latest work, presented in the literature, related to the controller design for an IPT system can be read in [22][23][24][25]. Following subsection discusses a step by step procedure for derivation of a voltage controller.…”

Section: Bode Plot Of Open-loop Systemmentioning

confidence: 99%

Linearization and Control of Series-Series Compensated Inductive Power Transfer System Based on Extended Describing Function Concept

Aditya

Williamson

2016

Energies

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Abstract:The extended describing function (EDF) is a well-known method for modelling resonant converters due to its high accuracy. However, it requires complex mathematical formulation effort. This paper presents a simplified non-linear mathematical model of series-series (SS) compensated inductive power transfer (IPT) system, considering zero-voltage switching in the inverter. This simplified mathematical model permits the user to derive the small-signal model using the EDF method, with less computational effort, while maintaining the accuracy of an actual physical model. The derived model has been verified using a frequency sweep method in PLECS. The small-signal model has been used to design the voltage loop controller for a SS compensated IPT system. The designed controller was implemented on a 3.6 kW experimental setup, to test its robustness.

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Output voltage control of the SP topology IPT system using a primary side controller

Cited by 10 publications

References 10 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

A Novel Output Power Control of Wireless Powering Kitchen Appliance System with Free-Positioning Feature

Linearization and Control of Series-Series Compensated Inductive Power Transfer System Based on Extended Describing Function Concept

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