Power Control of Grid-Connected Converters Under Unbalanced Voltage Conditions

0444274 - ÚT 2016 RIV US eng J - Journal Article
Valouch, Viktor - Bejvl, Martin - Šimek, Petr - Škramlík, Jiří
Power Control of Grid-Connected Converters Under Unbalanced Voltage Conditions.
IEEE Transactions on Industrial Electronics. Roč. 62, č. 7 (2015), s. 4241-4248. ISSN 0278-0046. E-ISSN 1557-9948
Institutional support: RVO:61388998
Keywords : converter * current control * current peaks
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering
Impact factor: 6.383, year: 2015

This paper presents a grid current control technique on the power converter level. The submitted analysis deals with a control method of positive and negative current sequences in a grid-connected converter during voltage sags. The control method should assure the proper exchange of active and reactive powers without power ripple, the mitigation of harmonic distortion of grid currents, and should also enable the control of grid current peaks. A simple expression is determined, which allows estimation of maximum active and reactive powers exchanged between the grid and the converter without exceeding the admissible converter current. Some simulation and experimental results are reported to validate the theoretically predicted performance of the control strategy.
Permanent Link: http://hdl.handle.net/11104/0246978