基于雙DSP 的磁浮開關磁阻電機全數字控制器研究

摘要﹕根據磁浮開關磁阻電機（SRM）對控制器硬件資源及實時性要求，基于雙DSP 與雙口RAM，研制了磁浮SRM
的全數字控制器。控制器以兩片TMS320LF2407A 為核心，以滿足磁浮SRM 功率變換器對PWM 調制信號的需求，雙口
RAM 用于實現兩DSP 之間的信息實時共享，旋轉控制用功率變換器采用傳統不對稱半橋電路，懸浮用功率變換器采用
兩塊IPM 模塊，雙DSP 管理三套功率變換器以共同實現旋轉控制和懸浮控制。制作了全數字控制器實驗樣機，進行
了實驗測試。結果表明，該全數字控制器實現了期望功能，兩DSP 可協調工作，實時交換所需數據，能有效地完成
對磁浮SRM 的控制。
Abstract: In view of the hardware resource and real-time control, the digital control system for magnetic suspending
switched reluctance motor is designed based on double-DSP and DARAM. Two DSPs are used in the controller, because the
19 PWM signals are demanded by the power inverters. A DARAM is used to realize real-time data sharing between two DSP.
The power inverter to control torque is realized by non-symmetrical semi-bridge structure, and two power inverters to control
suspending are realized by two IPMs. Three power inverters are all controlled by two DSPs. The digital controller is realized
and tested. The experimental results are presented to verify the controller.