Modeling and control for DFIG-based wind farm with hybrid HVDC connection

作者：Zhou Honglin^*; Yang Geng; Geng Hua

来源：Transactions of China Electrotechnical Society, 2010, 25(12): 124-131.

• Active power
• Black start
• Commutation voltages
• Control strategies
• Current source inverter
• DFIG
• Doubly-fed induction generator
• High-voltages
• HVDC
• Hybrid HVDC
• Modeling and control
• Reactive power support
• Simulation result
• Static synchronous compensator
• Stator voltages
• Wind farm

For doubly-fed induction generator (DFIG)-based large wind farm, this paper proposes a new HVDC (High-Voltage DC) transmission topology along with its modeling and control methods. In the proposed topology, the sending end is a line-commutated converter(LCC) with a static synchronous compensator (STATCOM), which serves to provide stator voltage support for DFIGs, as well as commutation voltage for the LCC. The receiving end is a current source inverter(CSI) using forced-commutated devices so as to give independent reactive power support to the grid. The mathematical model of the overall system is presented and corresponding control strategies are proposed. Simulation results show that the proposed system not only possesses the black-start capability and has fast active power response, but also provides independent reactive power support to the grid if necessary.

• 出版日期2010
• 单位清华大学