Non-Cartesian Frame Transformation-Based Control of a Three-Phase Power Converter During Unbalanced Voltage Dip – Part I: Transformation Principles

• Autorzy: Iwański Grzegorz , Maciejewski Paweł , Łuszczyk Tomasz

Identyfikatory

DOI

10.2478/pead-2019-0013

• Języki publikacji: EN

Abstrakty

EN

One of the currently investigated problems in power electronics-based electrical energy conversion is proper operation of electronic converters during grid voltage imbalance and harmonics. In classic control methods, it introduces oscillations of variables, resulting in the necessity to improve control systems with signals filtration and usually by application of resonant terms as part of current controllers. The paper presents a new approach to grid-connected inverter control based on transformation to a non-Cartesian frame, the parameters of which are correlated with grid voltage asymmetry. The proposed method results in resignation from resonant terms used as controllers and their replacement with proportional–integral terms for which anti-wind-up structures are significantly simpler than for oscillatory terms. The paper presents new transformation principles, features and some simulation results showing the waveforms of signals transformed to the new non-Cartesian frame.

Słowa kluczowe

EN

AC/DC; power conversion; current control; Clarke's transformation

• Wydawca: De Gruyter
• Czasopismo: Power Electronics and Drives
• Rocznik: 2019
• Tom: Vol. 4 (39)
• Strony: 47--61
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Iwański Grzegorz

• Warsaw University of Technology, Institute of Control and Industrial Electronics, ul. Koszykowa 75, 00-662 Warszawa, Poland

autor

Maciejewski Paweł

• Warsaw University of Technology, Institute of Control and Industrial Electronics, ul. Koszykowa 75, 00-662 Warszawa, Poland

autor

Łuszczyk Tomasz

• Warsaw University of Technology, Institute of Control and Industrial Electronics, ul. Koszykowa 75, 00-662 Warszawa, Poland

Bibliografia

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