Novel Average Value Model for Faulty Three-Phase Diode Rectifier Bridges

Mehdi Rahnama; Abolfazl Vahedi; Arta Mohammad Alikhani; Babak Nahid-Mobarakeh; Noureddine Takorabet

Novel Average Value Model for Faulty Three-Phase Diode Rectifier Bridges

Mehdi Rahnama

Abolfazl Vahedi

Arta Mohammad Alikhani

Babak Nahid-Mobarakeh

Noureddine Takorabet

Vol. 19, No. 1, pp. 288-295, Jan. 2019

10.6113/JPE.2019.19.1.288

Average value modeling

Open circuit fault

Three-phase uncontrolled rectifier

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Abstract

Rectifiers are widely used in industrial applications. Although detailed models of rectifiers are usually used to evaluate their performance, they are complex and time-consuming. Therefore, the Average Value Model (AVM) has been introduced to meet the demand for a simple and accurate model. This type of rectifier modeling can be used to simplify the simulations of large systems. The AVM of diode rectifiers has been an area of interest for many electrical engineers. However, healthy diode rectifiers are only considered for average value modeling. By contrast, faults occur frequently on diodes, which eventually cause the diodes to open-circuit. Therefore, it is essential to model bridge rectifiers under this faulty condition. Indeed, conventional AVMs are not appropriate or accurate for faulty rectifiers. In addition, they are significantly different in modeling. In this paper, a novel application of the parametric average value of a three-phase line-commutated rectifier is proposed in which one diode of the rectifier is considered open-circuited. In order to evaluate the proposed AVM, it is compared with experimental and simulation results for the application of a brushless synchronous generator field. The results clearly demonstrate the accuracy of the proposed model.

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Cite this article

[IEEE Style]

M. Rahnama, A. Vahedi, A. M. Alikhani, B. Nahid-Mobarakeh, N. Takorabet, "Novel Average Value Model for Faulty Three-Phase Diode Rectifier Bridges," Journal of Power Electronics, vol. 19, no. 1, pp. 288-295, 2019. DOI: 10.6113/JPE.2019.19.1.288.

[ACM Style]

Mehdi Rahnama, Abolfazl Vahedi, Arta Mohammad Alikhani, Babak Nahid-Mobarakeh, and Noureddine Takorabet. 2019. Novel Average Value Model for Faulty Three-Phase Diode Rectifier Bridges. Journal of Power Electronics, 19, 1, (2019), 288-295. DOI: 10.6113/JPE.2019.19.1.288.