摘要
该文针对变速风力发电机组系统所用的三相电压型SPWM 逆变器,采用非线性变换和非线性反馈理论,建立了三相电压型 PWM 逆变器非线性数学模型,推导出其反馈线性化方程,从而得出三相电压型 PWM 逆变器有功电流和无功电流的解耦控制策略。仿真和实验结果表明,该控制策略能较好地实现三相电压型 PWM 逆变器的解耦控制,具有较好的动态特性和较强的鲁棒性,能够提高变速风力发电机组供电质量。
The paper aim at the three-phase voltage source SPMW-inverter, which is applied in variable-speed wind turbines system, adopts the theory of nonlinear counterchange and nonlinear feedback, creates the three-phase voltage source PWM-inverter’s nonlinear model, and deduces it’s feedback linearization equation, consequently, the three-phase voltage source PWM-inverter active and reactive current decoupling control is proposed. The simulation and experiment results indicate that this control can implement preferably the control of the three-phase voltage source PWM-inverter’s decoupling and have better dynamic characteristics and robust quality, which can heighten the power quality of variable-speed wind turbines.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2004年第10期57-60,共4页
Proceedings of the CSEE
基金
国家自然科学基金项目(60174025)
广东省"十五"科技重大专项项目(A1050202)~~
