Efficient performance optimisation of wireless power transmission using genetic algorithm

Han, Ju Hee; Kim, Young Dam; Myung, Noh‐Hoon

doi:10.1049/el.2014.0030

Cited by 13 publications

(8 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, circular coils are still popular for stationary WPT-systems where the coil performance is maximised using multi-objective optimisation algorithms. These algorithms range from parametric sweeps [87] to genetic [88] and evolutionary algorithms [89]. In contrast, rectangular pads are the most common design for DWPT due to their high tolerance against longitudinal misalignment and efficient use of space on the vehicle [90], [91].…”

Section: Coil Designsmentioning

confidence: 99%

A critical review on wireless charging for electric vehicles

Machura

2019

Renewable and Sustainable Energy Reviews

220

View full text Add to dashboard Cite

Electric vehicles (EVs) have recently been significantly developed in terms of both performance and 10 drive range. There already are various models commercially available, and the number of EVs on road 11 increases rapidly. Although most existing EVs are charged by electric cables, companies like Tesla, 12 BMW and Nissan have started to develop wireless charged EVs that don't require bulky cables. 13 Rather than physical cable connection, the wireless (inductive) link effectively avoids sparking over 14 plugging/unplugging. Furthermore, wireless charging opens new possibilities for dynamic chargingcharging while driving. Once realised, EVs will no longer be limited by their electric drive range and the requirement for battery capacity will be greatly reduced. This has been prioritised and promoted worldwide, particularly in UK, Germany and Korea. This paper presents a thorough literature review on the wireless charging technology for EVs. The key technical components of wireless charging are summarised and compared, such as compensation topologies, coil design and communication. To enhance the charging power, an innovative approach towards the use of superconducting material in coil designs is investigated and their potential impact on wireless charging is discussed. In addition, health and safety concerns about wireless charging are addressed, as well as their relevant standards. Economically, the costs of a wide range of wireless charging systems has also been summarised and compared.

show abstract

Section: Coil Designsmentioning

confidence: 99%

A critical review on wireless charging for electric vehicles

Machura

2019

Renewable and Sustainable Energy Reviews

220

View full text Add to dashboard Cite

show abstract

“…There are several different ways to provide resonant frequency control, such as adding auxiliary components to adapt to the variance of magnetic couplings and directly switching the frequency of gate signals. For example, Aldhaher et al adjusted the operating frequency by using saturable reactors [13], and the WPT system developed by Han et al can adjust a different resonant capacitor and then change the operating frequency [14]. Although these auxiliary resonant components help to switch the frequency indirectly, they increase the cost of wireless chargers, especially in high power applications, and the additional electronic elements make the WPT system bulky.…”

Section: Open Accessmentioning

confidence: 99%

A Uniform Voltage Gain Control for Alignment Robustness in Wireless EV Charging

2015

View full text Add to dashboard Cite

Abstract:The efficiency of wireless power transfer is sensitive to the horizontal and vertical distances between the transmitter and receiver coils due to the magnetic coupling change. To address the output voltage variation and efficiency drop caused by misalignment, a uniform voltage gain frequency control is implemented to improve the power delivery and efficiency of wireless power transfer under misalignment. The frequency is tuned according to the amplitude and phase-frequency characteristics of coupling variations in order to maintain a uniform output voltage in the receiver coil. Experimental comparison of three control methods, including fixed frequency control, resonant frequency control, and the proposed uniform gain control was conducted and demonstrated that the uniform voltage gain control is the most robust method for managing misalignment in wireless charging applications.

show abstract

“…These facts serve as a motivation to pursue a systematic approach for optimal design of the WPT system. To deal with this problem, Genetic algorithm (GA) has been already employed for optimization of the WPT system [15,16]. In Reference [15], GA was used to first determine the value of equivalent circuit parameters of the WPT system to overcome the frequency splitting phenomenon and then to extract the optimal values of two added capacitors at the source and the load.…”

Section: Introductionmentioning

confidence: 99%

A Systematic Methodology for Optimal Design of Wireless Power Transfer System Using Genetic Algorithm

2020

View full text Add to dashboard Cite

This paper presents a systematic methodology for the optimal design of wireless power transfer (WPT) systems. To design a WPT for a specific application, the values of coil geometric parameters and the number of resonators should be chosen such that an objective function is maximized while satisfying all the design constraints. The conventional methodologies, which are based on cyclic coordinate optimization, are not comprehensive and efficient methods. This paper presents a design methodology based on the genetic algorithm (GA). The optimization method has been applied to designing different WPTs with series and parallel connections of load and different design constraints. Moreover, the number of resonators is considered as the design parameters. In addition, WPTs with parallel and series connections of load are compared from different aspects. The results of calculation, simulation and measurements demonstrate that the 2-coil WPT can be optimized to achieve maximum efficiency compared to the previously reported 2-coil and multi-coil WPTs. In a fabricated 2-coil configuration, a power transfer efficiency (PTE) of 82.7% and a power delivered to the load (PDL) of 173.89 mW are achieved.

show abstract

Efficient performance optimisation of wireless power transmission using genetic algorithm

Cited by 13 publications

References 4 publications

A critical review on wireless charging for electric vehicles

A critical review on wireless charging for electric vehicles

A Uniform Voltage Gain Control for Alignment Robustness in Wireless EV Charging

A Systematic Methodology for Optimal Design of Wireless Power Transfer System Using Genetic Algorithm

Contact Info

Product

Resources

About