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Abstract:   (318 Views)
This paper presents a new single to three phase converter using rotating magnetic field transformer. Conventional transformers have been used in many converters aiming at supplementary improvements and they usually have no critical effect on the conversion technique. In this paper, the conversion technique is based on a special rotating magnetic field transformer in which there are two windings in the primary and six windings on the secondary side. In the proposed converter, first a single-phase voltage source is applied on the primary windings via a switching technique using thyristors to create a rotating magnetic field. Next, the created field induces three phase voltages on the secondary three phase windings. Nevertheless, the created field in the primary side suffers from low frequency harmonics and can be transmitted to the secondary three phase voltages. Hence, design of the secondary windings is modified to mitigate these harmonics. The paper discusses how the harmonics can be mitigated using two sets of three phase windings with appropriate shift. Finally, the proposed converter is modeled using state equations and the simulation results exhibit the effectiveness of the proposed converter.
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  • This paper proposes a new single-to-three phase converter that is based on a special type of rotating magnetic field transformers.
  • In the proposed system, a switching technique is also introduced to obtain nearly a two-phase voltage.
  • The results confirm the validity of the proposed converter and also THD reduction in comparison to the conventional converter.

Type of Study: Research Paper | Subject: Converters
Received: 2019/09/12 | Revised: 2020/06/26 | Accepted: 2020/06/29

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© 2020 by the authors. Licensee IUST, Tehran, Iran. This is an open access journal distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license.