三相电压型SVPWM整流的控制策略研究与实验

为了克服传统整流器功率因数低和谐波大的缺陷,设计出功率因数可调以及能量双向流动的三相电压型整流器。从其结构与数学模型两方面入手,结合矢量控制和比例积分调节原理,提出了SVPWM的实现方法。在以TMS320LF2407型DSP为平台的目标系统上,进行程序编写和调试,获得了完整的网侧电流电压波形。实验结果表明,在该控制策略下,输入电压电流波形良好且同相位,系统性能优良。

Predictive Functional Controller with a Similar Proportional Integral Optimal Regulator Structure:Comparison with Traditional Predic-tive Functional Controller and Application to Heavy Oil Coking Equipment

By extending the system's state variables,a novel predictive functional controller has been developed.The structure of this controller is similar to that of classical proportional integral(PI)optimal controller and in-cludes a control block that can perform a feed-forward control of future P-step set points.It considers both the state variables and the output errors in its cost function,which results in enhanced control performance compared with traditional state space predictive functional control(TSSPFC)methods that consider only the predictive output er-rors.The predictive functional controller(PFC)has been compared with TSSPFC in terms of tracking ability,dis-turbance rejection,and also based on its application to heavy oil coking equipment.The results obtained show the effectiveness of the controller.