电压型PWM整流器数学模型及非线性控制策略

Mathematical model and nonlinear control strategy of three phase voltage PWM rectifier

根据电压型PWM整流器的基本动态数学模型,得到仿射非线性模型、欧拉-拉格朗日及端口受控的哈密顿耗散模型。结合非线性控制理论,论述了电压型PWM整流器的反馈线性化、无源控制(PBC)策略,指出了上述各种非线性控制策略的优缺点。提出了PBC和自抗扰控制相结合,实现优势互补的控制策略。

Based on basal mathematical model of three phase voltage pulse width modulation（PWM） rectifier,affine nonlinear model,Euler-Lagrange and port-controlled Hamiltonian dissipation model are obtained.Combined with nonlinear control theory,feedback linearization and passivity-based control（PBC） strategies in three phase voltage PWM rectifier are discussed.A review on the nonlinear control strategies of three phase voltage PWM rectifier is given.In order to implement superiority complementation,the combination of PBC with auto-disturbance rejection control is proposed.