Cascaded Multi-Level Inverter Based IPT Systems for High Power Applications

Yong Li; Ruikun Mai; Mingkai Yang; Zhengyou He

Cascaded Multi-Level Inverter Based IPT Systems for High Power Applications

Vol. 15, No. 6, pp. 1508-1516, Nov. 2015

10.6113/JPE.2015.15.6.1508

Cascaded multi-level inverter

Harmonic elimination

Inductive Power Transfer (IPT)

Power regulation

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Abstract

A single phase H-bridge inverter is employed in conventional Inductive Power Transfer (IPT) systems as the primary side power supply. These systems may not be suitable for some high power applications, due to the constraints of the power electronic devices and the cost. A high-frequency cascaded multi-level inverter employed in IPT systems, which is suitable for high power applications, is presented in this paper. The Phase Shift Pulse Width Modulation (PS-PWM) method is proposed to realize power regulation and selective harmonic elimination. Explicit solutions against phase shift angle and pulse width are given according to the constraints of the selective harmonic elimination equation and the required voltage to avoid solving non-linear transcendental equations. The validity of the proposed control approach is verified by the experimental results obtained with a 2kW prototype system. This approach is expected to be useful for high power IPT applications, and the output power of each H-bridge unit is identical by the proposed approach.

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Cite this article

[IEEE Style]

Y. Li, R. Mai, M. Yang, Z. He, "Cascaded Multi-Level Inverter Based IPT Systems for High Power Applications," Journal of Power Electronics, vol. 15, no. 6, pp. 1508-1516, 2015. DOI: 10.6113/JPE.2015.15.6.1508.

[ACM Style]

Yong Li, Ruikun Mai, Mingkai Yang, and Zhengyou He. 2015. Cascaded Multi-Level Inverter Based IPT Systems for High Power Applications. Journal of Power Electronics, 15, 6, (2015), 1508-1516. DOI: 10.6113/JPE.2015.15.6.1508.