Passivity-Based Control of a Doubly Fed Induction Generator System under Unbalanced Grid Voltage Conditions

Jiawei Huang, Honghua Wang and Chong Wang
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Jiawei Huang: College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China
Honghua Wang: College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China
Chong Wang: Department of Electrical & Computer Engineering, Iowa State University, Ames, IA 50011, USA

Energies, 2017, vol. 10, issue 8, 1-13

Abstract: According to the theory of passivity-based control (PBC), this paper establishes a port-controlled Hamiltonian system with dissipation (PCHD) model for a doubly fed induction generator (DFIG) system under unbalanced grid voltage conditions and proposes a method of interconnection and damping assignment passivity-based control (IDA-PBC) of the system under such conditions. By using this method, the rotor-side converter and grid-side converter can be controlled simultaneously in order to improve fault ride-through capability of the DFIG system. Simulation results indicate that this IDA-PBC strategy effectively suppresses fluctuations of output current and power in the DFIG system during unbalanced grid voltage sag/swell, enhances dynamic performance, and improves the robustness of the system.

Keywords: doubly fed induction generator; grid voltage unbalance; fault ride-through; passivity-based control; port-controlled Hamiltonian system (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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