Zero-sequence current control of modular active power filter for high power three-phase three-wire electrical networks

Mohamed Choukri Benhabib (1) , Philippe Poure (2) , Shahrokh Saadate (1)

1 GREEN - Groupe de Recherche en Electrotechnique et Electronique de Nancy
2 LIEN - Laboratoire d'Instrumentation Electronique de Nancy

Since the development of the first control strategy for the active power filters (APF) introduced by H. Akagi [H. Akagi, Y. Kanazawa,A. Nabae, Generalized theory of the instantaneous reactive power in three-phase circuits, in: Proceedings of International Power Electronics Conference, Tokyo, Japan (1983) 1375-1386.], many efforts have been concentrated to improve their performances. However, when electrical networks supplies high current non-linear loads, a single inverter-based APF has limited power capability. In this paper, we studied parallel operation achieving high power level. More particularly, we examined a modular APF based on two threephase inverters. This structure allows zero-sequence current circulating through the inverters, as demonstrated by using averaged modelling of the APF. To solve this problem and based on previous averaged model, we proposed a new optimal control strategy, suppressing the zero-sequence circulating current. Simulation results validate the proposed control. Copyright © 2006 The Berkeley Electronic Press. All rights reserved.

Mots clés: Zero-sequence; Parallel operation; Averaged modelling; Instantaneous power theory; Active power filter

Domaines: Energie électrique

Mohamed Choukri Benhabib, Philippe Poure, Shahrokh Saadate. Zero-sequence current control of modular active power filter for high power three-phase three-wire electrical networks. International Journal of Emerging Electric Power Systems, 2006, pp.1-21. ⟨hal-00160988⟩