电力电子变流传动非线性系统耦合振荡及其控制研究

The electric machine drive system fed by power electronic converter is studied as researching object in this project, supported by the National Science Foundation of China. The nonlinear modeling, nonlinear-coupled oscillation mechanism and nonlinear control method of power drive system are first researched. This project first proposes that the coupled interaction between internal and external multiple nonlinear factors existing in the DC electric machine drive system fed by power converter is the essential cause of bringing out the nonlinear- coupled oscillation of system, that first suggests the anti-oscillation adaptive vibration control theory to suppress the vibration, using non-universal vibration control method, from the angle of electrical control, and with the principle of nonlinear control. This method proposed can uncouple, cancel out and compensate the coupled oscillation characteristics of multiple nonlinear factors, to achieve the goal of suppressing and eliminating the oscillation or vibration. This project first proposes the anti-oscillation electrical elimination method. This method has application in the vibration control engineering of winding-tower building vibration and hoist reducer vibration, obtained the remarkable effects of eliminating 90% above vibration components. It provides an important theory and key technique for the theory and method proposed by this project to solve the problems of the mechanical vibration, building construction structure vibration in practical engineering applications, and electrical coupled oscillation in electrical engineering.

本项目以变流装置传动电机系统为研究对象，研究此类系统的非线性建模、非线性耦合振荡机理和振荡及振动控制理论方法。从电气控制角度出发，从非线性控制入手，提出和研究反振荡适应控制策略，及其在非线性耦合振荡控制中的应用。为解决实际工程中的机械振动或建筑结构振动提供重要理论和关键技术。这对厂矿企业高效安全生产意义重大。