摘要
研究了基于能量成形的变速恒频双馈感应发电系统的建模与控制问题。采用端口受控哈密顿(port-controlled Hamiltonian,PCH)方法,建立了双馈感应发电机的PCH系统非线性模型,采用PCH系统与L2增益扰动抑制技术设计了系统在干扰向量为0时的PCH控制器和干扰向量不为0时的L2增益控制率,实现了定子电流的解耦控制、最大风能捕获控制以及无功功率的独立调节。仿真结果表明,所提出的控制方法是可行的。
Using the method of Port-Controlled Hamiltonian？ （PCH） systems, which is based on the energy shaping control methods, and stator-flux-oriented control, the modeling and control of variable-speed constant-frequency （VSCF） doubly-fed induction generator （DFIG） are studied. A PCH mode of VSCF DFIG is established. The desired closed-loop PCH system structure is obtained by the feedback. The PCH controller and L2 gain control law are designed in terms of PCH system L2 gain disturbances attenuation for the cases of ξ= 0 and ξ≠0, respectively. The decoupling control of stator current, the largest wind energy capture as well as independent reactive power regulation are performed. The simulation results show that the proposed control method is feasible.
出处
《青岛大学学报（工程技术版）》
CAS
2009年第3期36-42,共7页
Journal of Qingdao University(Engineering & Technology Edition)
基金
国家自然科学基金资助项目(60774027)
