摘  要：塑封电机体积小、噪声低、效率高、重量轻、绝缘性能好、适应于大规模生产。大规模生产的关键技术之一是两半定子的half面连接技术。比较了国内外电机厂家所采用的几种half面连接方法，指出用焊接实现塑封电机的定子连接最为可靠和经济，最易满足塑封电机多种苛刻指标的方法。着重介绍了Half面焊接工艺。
关键词：塑封电机；Half面连接；焊接质量

Abstract:Based on the principle of three vectors synthesizing flux in voltage space vector pulse width modulation(SVPWM),a new method establishing the simulation model of permanent magnet synchronous motor(PMSM)had been given.In matlab 6.5/simulink,a PMSM SVPWM control system simulation model established.The SVPWM block was emphasized to be introduced.The simulation results showed the validity of the principle of three vectors synthesizing flux in PMSM SVPWM control system.This novel method offered a new thought way for designing the PMSM SVPWM control system.
Key Words: PMSM;SVPWM;Three vectors synthesizing flux;Simulation