以DSP為基礎的泛用型永磁與感應交流伺服驅動器之研製

Abstract

永磁交流馬達與感應交流馬達，在工業自動化的領域上應用很廣。 因此，本論文提出一種泛用型的交流伺服驅動器架構，在相同的硬體架構 之下，將兩種馬達的磁場導向控制法則予以單一化，使在一馬力範圍旳小 功率交流伺服驅動器有一簡單且實用之向量控制架構。磁場導向控制方法 選擇間接式磁場導向控制法則，電流控制方法採用在靜止兩軸座標系之下 的線性電流數位控制板採用德州儀器公司的兩顆DSP-TMS320C14與TMS320 C52作為控制晶片，DSP具有比一般傳統微控制器快5~10倍的運算能力，配 合以智慧型IGBT為基礎之換流器，成為一套極具發展潛力的伺服驅動器。 在數位控制發展系統上更開發一套「以視窗為基礎之交談式數位發展系統 」大量縮短了程式發展流程，為未來實現複雜的控制律提供一個快速與簡 便的實驗環境。 With recent advancements in power electronics and microelectronics, high- performance ac drives using induction or synchronous motor have been developed. So an universal control algorithm of ac servo drives is proposed based on the same digital control board and voltage source inverter to unify the architecture of permanent magnet and induction ac servo motors. The indirect rotor flux oriented control and linear current control in the stationary reference frame are used, and the back-emf compensation is proposed to improve the current control loop performance. The analysis and design methods of ac servo drives system with current and voltage limitations are also completely described. In order to verify the proposed control algorithm, a dual DSP-based digital control board and intelligent power module (IPM) based voltage source inverter are implemented to construct the universal ac servo drives system.The current control loop is executed by TMS320C14, and the vector control loop and servo control loop are executed by TMS320C52. Experiment results of the dual DSP-based universal ac servo drives shows the effectiveness of the design.