In view of such problem as low power factor

serious distortion and torque pulsation of motor in the speed control system of for which the power is supplied by the traditional single phase uncontrolled rectifier

in this paper a kind of high power achievement method of permanent magnetic synchronous motor（PMSM）drive system based on repetitive control is proposed to achieve following objective:1)adj ustment of PMSM revolution;2)current quality optimization at network side;3)power factor improvement of the network side

thus deducts the relation function of rectifier side power

support capacitive power and inverter side power. In addition

for meeting double frequency periodical fluctuation of the power at inverter side with voltage of network side

the repetitive controller is introduced to achieve high accuracy tracking of the sinusoidal periodic ring q-axis current. Finally

Experiment verification and analysis for the test platform of drag speed regulation system based on dual 15 k W PMSM are performed.It is shown by the result that the proposed method can achieve three control objectives of the drive system and

at the same time

reduce system cost and compress size by way of reducing bus support capacitor.