【摘要】 基于能量成形和端口受控哈密顿控制方法,研究了三相电压型PWM整流器的建模与控制问题。首先,在d-q旋转坐标系下建立了三相电压型PWM整流器的PCH模型。然后,根据系统控制器的设计目标,确定了系统期望的平衡点。利用互联和阻尼配置方法,给出了三相电压型PWM整流器的PCH反馈镇定原理。通过能量成形和参数匹配方法设计了控制器,并且分析了平衡点的稳定性。仿真结果表明,该方法能使所设计的PWM整流器运行于单位功率因数,输出的直流电压基本稳定在期望值且具有快速的动态响应,满足了设计要求。更多还原

【Abstract】 Basing on energy-shaping and port-controlled Hamilton control,the model and controller of three-phase voltage source PWM rectifier are presented.First of all,a PCH mathematical model of three-phase voltage source PWM rectifier is established in the d-q rotation frames.Then,according to the target of the controller design,the desired equilibrium point of the system is obtained.Using the energy-shaping theory of interconnection and damping assignment,the PCH feedback control theory of three-phase voltage source PWM rectifier is given.Feedback stabilization controller is designed through energy-shaping and matching the parameter,the stability of equilibrium point is analyzed finally.The simulation results show that this method can make PWM rectifier run with unit power factor,the output DC voltage stabilize on the desired value with the fast dynamic response.The characteristics meet the design demands.更多还原