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Optimized and coordinated model predictive control scheme for DFIGs with DC-based converter system
Abstract This paper proposes an optimized and coordinated model predictive control (MPC) scheme for doubly-fed induction generators (DFIGs) with DC-based converter system to improve the efficiency and dynamic performance in DC grids. In this configuration, the stator and rotor of the DFIG are connected to the DC bus via voltage source converters, namely, a rotor side converter (RSC) and a stator side converter (SSC). Optimized trajectories for rotor flux and stator current are proposed to minimize Joule losses of the DFIG, which is particularly advantageous at low and moderate torque. The coordinated MPC scheme is applied to overcome the weaknesses of the field-oriented control technique in the rotor flux-oriented frame, which makes the rotor flux stable and the stator current track its reference closely and quickly. Lastly, simulations and experiments are carried out to validate the feasibility of the control scheme and to analyze the steady-state and dynamic performance of the DFIG.
Optimized and coordinated model predictive control scheme for DFIGs with DC-based converter system
Abstract This paper proposes an optimized and coordinated model predictive control (MPC) scheme for doubly-fed induction generators (DFIGs) with DC-based converter system to improve the efficiency and dynamic performance in DC grids. In this configuration, the stator and rotor of the DFIG are connected to the DC bus via voltage source converters, namely, a rotor side converter (RSC) and a stator side converter (SSC). Optimized trajectories for rotor flux and stator current are proposed to minimize Joule losses of the DFIG, which is particularly advantageous at low and moderate torque. The coordinated MPC scheme is applied to overcome the weaknesses of the field-oriented control technique in the rotor flux-oriented frame, which makes the rotor flux stable and the stator current track its reference closely and quickly. Lastly, simulations and experiments are carried out to validate the feasibility of the control scheme and to analyze the steady-state and dynamic performance of the DFIG.
Optimized and coordinated model predictive control scheme for DFIGs with DC-based converter system
Shaomin YAN (author) / Aimin ZHANG (author) / Hang ZHANG (author) / Jianhua WANG (author) / Bin CAI (author)
2017
Article (Journal)
Electronic Resource
Unknown
Coordinated model predictive control (MPC) scheme , Doubly-fed induction generator (DFIG) , DC-based converter system , Optimized trajectories , Rotor side converter (RSC) , Stator side converter (SSC) , Production of electric energy or power. Powerplants. Central stations , TK1001-1841 , Renewable energy sources , TJ807-830
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