Design and Control of DC/AC Converters in Parallel with Diode Rectifiers for Regenerative Applications

Zhigang Gao; Rui Li; Qi Lu

Design and Control of DC/AC Converters in Parallel with Diode Rectifiers for Regenerative Applications

Zhigang Gao

Rui Li

Qi Lu

Vol. 17, No. 4, pp. 1071-1087, Jul. 2017

10.6113/JPE.2019.17.4.1071

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Abstract

This paper introduces a DC/AC converter, which can be connected in parallel with a diode rectifier for regenerative applications. The DC/AC converter is supposed to transmit regenerative energy to the power grid when a motor is braking. Isolation transformers are not needed in the topology, which can reduce the size and cost. An analysis of the zero-order current existing in the system is carried out. In addition, algorithms to minimize the zero-order current, control the power factor and keep the DC bus voltage stable are discussed. A 55kW industrial prototype is built to verify the proposed analysis and control strategies.

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Cite this article

[IEEE Style]

Z. Gao, R. Li, Q. Lu, "Design and Control of DC/AC Converters in Parallel with Diode Rectifiers for Regenerative Applications," Journal of Power Electronics, vol. 17, no. 4, pp. 1071-1087, 2017. DOI: 10.6113/JPE.2019.17.4.1071.

[ACM Style]

Zhigang Gao, Rui Li, and Qi Lu. 2017. Design and Control of DC/AC Converters in Parallel with Diode Rectifiers for Regenerative Applications. Journal of Power Electronics, 17, 4, (2017), 1071-1087. DOI: 10.6113/JPE.2019.17.4.1071.