Figures (18)  Tables (2)

    • Figure 1. 

      Single rail power supply mode.

    • Figure 2. 

      Segmented rail (multi-coil array) supply mode. (a) Single converter power supply mode. (b) Multiple converter power supply mode.

    • Figure 3. 

      Main circuit of the proposed dual-output inverter with wide soft-switching range for dynamic wireless charging of electric vehicles.

    • Figure 4. 

      Equivalent circuit of Fig. 3.

    • Figure 5. 

      Theoretical operating waveforms of key components.

    • Figure 6. 

      Equivalent circuits in each of the operating modes. (a) Mode 1; (b) Mode 2; (c) Mode 3; (d) Mode 4; (e) Mode 5; (f) Mode 6; (g) Mode 7; (h) Mode 8; (i) Mode 9; (j) Mode 10; (k) Mode 11.

    • Figure 7. 

      The relationship between Mv-p and D.

    • Figure 8. 

      The mutual inductance equivalent circuit in Fig. 3.

    • Figure 9. 

      The relationship among Pout with D, M1, and M2. (a) The relationship among Pout with D and M1 + M2. (b) The relationship among Pout with M1 and M2.

    • Figure 10. 

      Simplified model of LCC network under high order harmonics.

    • Figure 11. 

      The relationship among iS2(t0) with D, M1, and M2. (a) The relationship among iS2(t0) with D, M1, and M2 under different duty cycle conditions; (b) Cross-sectional view of (a) when M2 = 15 μH.

    • Figure 12. 

      The relationship among iS1(t5) with D, M1, and M2. (a) The relationship among iS1(t5) with D, M1, and M2 under different duty cycle conditions; (b) Polarity boundary line of iS1(t5).

    • Figure 13. 

      Experimental platform.

    • Figure 14. 

      The magnetic coupler. (a) Schematic diagram; (b) Measured mutual inductances vary with x-axis.

    • Figure 15. 

      Experimental waveforms of the inverter output voltages and primary coil currents. (a) x = 0, D = 0.3; (b) x = 7.5, D = 0.3; (c) x = 0, D = 0.7; (d) x = 7.5, D = 0.7.

    • Figure 16. 

      Experimental waveforms of two switches. (a) x = 7.5, D = 0.3; (b) x = 0, D = 0.3; (c) x = 7.5, D = 0.7; (d) x = 0, D = 0.7.

    • Figure 17. 

      Curves of the system output power and efficiency. (a) Output power; (b) Transfer efficiency.

    • Figure 18. 

      Experimental waveforms of VC0, iL0, iLp1, and Vout under load change: (a) 5 to 3.3 Ω; (b) 3.3 to 5 Ω; (c) 5 to 10 Ω; (d) 10 to 5 Ω.

    • Type of inverter Voltage gain Number of input ports Number of output ports Number of switching devices
      Voltage type half bridge inverter 0~0.45 1 1 2
      Voltage type full bridge inverter 0~0.9 1 1 4
      Matrix converter 0~0.64 1 1 8
      Multi-level inverter 0~1.35 1 1 8
      Three-phase inverter 0~0.78 1 3 6
      The proposed inverter 0~1.39 1 2 2

      Table 1. 

      The comparison between the proposed dual output inverter and several typical inverters.

    • ParameterValueParameterValue
      Vin100 VLa50 μF
      Lp100 μHCa70.12 nF
      L0150 μHCp62.94 nF
      Ls130 μHR5 Ω
      C0100 μFM125.7 μH
      Cs26.97 nFf085 kHz

      Table 2. 

      Main system parameters.