根據(jù)磁浮開關(guān)磁阻電機(jī)（SRM）對(duì)控制器硬件資源及實(shí)時(shí)性要求，基于雙DSP 與雙口RAM，研制了磁浮SRM的全數(shù)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(duì)PWM 調(diào)制信號(hào)的需求，雙口RAM 用于實(shí)現(xiàn)兩DSP 之間的信息實(shí)時(shí)共享，旋轉(zhuǎn)控制用功率變換器采用傳統(tǒng)不對(duì)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(shí)現(xiàn)旋轉(zhuǎn)控制和懸浮控制。制作了全數(shù)字控制器實(shí)驗(yàn)樣機(jī)，進(jìn)行了實(shí)驗(yàn)測(cè)試。結(jié)果表明，該全數(shù)字控制器實(shí)現(xiàn)了期望功能，兩DSP 可協(xié)調(diào)工作，實(shí)時(shí)交換所需數(shù)據(jù)，能有效地完成對(duì)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.
關(guān)鍵詞﹕磁浮開關(guān)磁阻電機(jī)，DSP，雙口RAM，數(shù)字控制
Keywords: magnetic suspending switched reluctance motor, DSP, DARAM, digital control