臺灣博碩士論文加值系統

在直線運動的機構中，線型感應馬達為最直接之致動元件，一般旋轉電動
機需一些齒輪變速及旋轉至直線之轉換機構，故在性能上則有強健、無背
隙、低摩擦及高速運動之優點，尚可利用線型感應馬達特有之磁浮現象，
達到無機械摩擦之運動，可應用在如高速運輸載具、生產線傳送裝置、工
具機、機械手臂等等。由於線型感應電動機在基本上與旋轉感應電動機有
若干之差異，如端點效應、邊緣效應、肌膚效應、氣隙漏磁通大、諧波大
、三相不對稱及正向力之耦合效應等，故本文建立線型感應電動機數學模
型，進而得到其等效電路，以分析速度及推力之靜態及動態特性，並作特
性之改進。利用單晶片微處理器及功率放大元件IGBT，將旋轉感應電動機
驅動技術延伸至線型感應電動機，藉由磁場向量控制法則及電壓向量空間
VSPWM調變技術，將端點效應特性加入驅動器之控制法則，控制有效磁通
，使複雜的感應電動機簡化成所謂的理想電動機 (IIM)，再利用頻率補償
控制 (FCC)將誤差消除，並做線型感應電動機之推力特性之改進，完成定
速及定位控制。

Owing to the difference between linear motor and rotary motor,
like as end-effect, edge effect, skin effect, larger air gap
and harmonic, unbalance phenomenon, and the normal force
coupling effect , So the paper make the mathematical model and
the equivalent circuit, and analysis the static and dynamic
thrust-velocity characterictic, and improve the system
performance. Using digital signal processor and the IGBT
inverter module, with the technologies of vector control and
voltage space PWM , design and implement a one-horsepower motor
drives, also test the capability in rotary indiction motor.
Taking account of the end-effect compensation in linear
induction motor drives control law. And the method has control
of effective flux, allowing a complicated induction motor to be
treated as an ideal one, then a frequency compensation control
follows to reduce error, then examines and improves the thrust-
velocity performance. Finally, the paper accomplishes the
velocity and position control under different loading
conditions.