Abstract
Increasing production of electric vehicles (EVs) and the challenge of charging these types of vehicles have been one of the most important research topics in the current century. Due to the low-battery energy density of EVs (compared to fuel) as well as the long time required to charge EVs, wireless power transfer (WPT) technology is an interesting topic researched in recent years. The WPT system in EVs can be studied in both static and dynamic scenarios. In this study, symmetrical circular couplers are first presented as system magnetic couplers and their magnetic calculations are analyzed using finite element method. Then, a new approach is proposed to design the power electronic circuits of the WPT, including a double-sided LCC compensator, and providing an approximation for calculating the ratio of output to input voltage. This method shows how to select the appropriate values of the passive elements for high system efficiency that can meet the output power and voltage. Firstly, the efficacy of the proposed approach is confirmed by experimental and simulation results. Then, using the input control of inverter MOSFETs through pulse width modulation method and proportional integral controller, the output voltage of the system is kept constant while increasing or decreasing the input voltage.
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Change history
02 June 2021
A Correction to this paper has been published: https://doi.org/10.1007/s13369-021-05726-0
Abbreviations
- \(L_{11} ,L_{22}\) :
-
Self-inductance of transmitter/receiver coupler coils (H)
- \(r_{1} ,r_{2}\) :
-
Resistance of LCC transmitter/receiver compensators (ohm)
- \(L_{1} ,L_{2}\) :
-
Inductance of LCC transmitter/receiver compensators (H)
- \(C_{{{\mathrm{P}}1}} ,C_{{{\mathrm{P}}2}}\) :
-
Parallel capacitance of LCC transmitter/receiver compensators (F)
- \(C_{{{\mathrm{S}}1}} ,C_{{{\mathrm{S}}2}}\) :
-
Series capacitances of LCC transmitter/receiver compensators (F)
- \(R_{{\mathrm{P}}} ,R_{{\mathrm{S}}}\) :
-
Resistance of transmitter/receiver coupler coils (H)
- \(R_{{\mathrm{O}}}\) :
-
Resistance output load (ohm)
- \(C_{{\mathrm{O}}}\) :
-
Capacitance of output load (H)
- \(K\) :
-
Coupling coefficient between two coils
- \(M\) :
-
Mutual inductance between the two coils (H)
- \(r{\text{-Internal}}\) :
-
Wire radius (mm)
- \(R{\text{-in-Coil}}\) :
-
Internal radius of coil (mm)
- \(R{\text{-out-Coil}}\) :
-
External radius of coil (mm)
- \(N{\text{-Coil}}\) :
-
Number of coil turns
- \(D{\text{-Ferrite}}\) :
-
Internal diameter between bars (mm)
- \({\text{Width-Ferrite}}\) :
-
Width of ferrite bars (mm)
- \(L{\text{-Ferrite}}\) :
-
Length of ferrite bars (mm)
- \(L{\text{-Alumimium}}\) :
-
Aluminum length (mm)
- \(V_{{\text{in-ac}}}\) :
-
Voltage of the inverter output (V)
- \(V\_{\text{dc}}\) :
-
Actual voltage value of the DC input power supply (V)
- \(V_{{{\text{O}}\_{\text{ac}}}}\) :
-
Voltage of the load transferred to the pre-rectifier (V)
- \(V_{{\mathrm{O}}}\) :
-
Output voltage (V)
- \(Ro\_eq\) :
-
Resistance of the load transferred to the pre-rectifier (ohm)
- \(\omega\) :
-
Switching angular velocity (rad/s)
- \(f\) :
-
Switching frequency (Hz)
- \(D\) :
-
Duty cycle of the full-wave inverter with PWM control
- \(\omega_{1}\) :
-
Resonant angular velocity of the transmitter side (rad/s)
- \(f_{1}\) :
-
Resonant frequency of the transmitter side (Hz)
- \(\omega_{2}\) :
-
Resonant angular velocity of the receiver side (rad/s)
- \(f_{2}\) :
-
Resonant frequency of the receiver side (Hz)
- EV:
-
Electric vehicle
- FEM:
-
Finite element method
- IPT:
-
Induction power transmission
- LCC:
-
Line commutated converter
- PI:
-
Proportional integral
- PWM:
-
Pulse width modulation
- WPT:
-
Wireless power transfer
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Siroos, A., Sedighizadeh, M., Afjei, E. et al. System Identification and Control Design of a Wireless Charging Transfer System with Double-Sided LCC Converter. Arab J Sci Eng 46, 9735–9751 (2021). https://doi.org/10.1007/s13369-021-05548-0
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DOI: https://doi.org/10.1007/s13369-021-05548-0