中国电机工程学报2012,Vol.32Issue(15):91-99,9.
基于内模的永磁同步电机滑模电流解耦控制
Decoupled Current Control of Permanent Magnet Synchronous Motors Drives With Sli~ling Mode Control Strategy Based on Internal Model
摘要
Abstract
Field-oriented control (FOC) is the preferred control method for permanent magnet synchronous motors (PMSM). The purpose of FOC is to guarantee perfect dynamic and steady performance of PMSM, but there is cross-coupling between dq currents in synchronous-frame, which impairs the characteristics of torque response. The dq currents cannot be decoupled by the traditional PI, and the traditional voltage feedforward decoupling control is sensitive to parameters, therefore a new decoupled current control strategy using sliding mode control based on internal model was proposed. The internal model control was used to control an ideal motor decoupled model, which was directly related to the system dynamic response performance. The integral sliding mode control was used to decouple dq currents, which had great contribution to the robustness of parameter uncertainties and disturbances in the current loops. The validated results of simulation and experiments demonstrate that the dq currents were decoupled, the dynamic performance was improved, and the robustness was satisfied.关键词
矢量控制/永磁同步电机/电压前馈解耦控制/内模控制/滑模控制/电流解耦控制Key words
field-oriented control/permanent magnetsynchronous motor/voltage feedforward decoupling control/internal model control/sliding mode control/decoupled currentcontrol分类
信息技术与安全科学引用本文复制引用
周华伟,温旭辉,赵峰,张剑..基于内模的永磁同步电机滑模电流解耦控制[J].中国电机工程学报,2012,32(15):91-99,9.基金项目
国家自然科学基金项目(61034007). ()