CAJ | 학술논문

空间电压脉宽调制（ SVPWM）技术在永磁同步电机（ PMSM）矢量控制中已经得到了广泛的应用，但当逆变器输出电压达到最大值时，电机转速便受到限制，此时逆变器输出电压没有达到母线电压的最大值，所以电压利用率较低。 SVPWM过调制技术可以在母线电压不变的情况下增大逆变器输出电压，提高母线电压的利用率，进而提高电机的最高转速和负载转矩。本文介绍了一种SVPWM过调制方法，该方法模型简单，易于编程，并通过仿真和实验验证了其正确性，在工程应用中具有较好的应用价值。
공간전압맥관조제（ SVPWM）기술재영자동보전궤（ PMSM）시량공제중이경득도료엄범적응용，단당역변기수출전압체도최대치시，전궤전속편수도한제，차시역변기수출전압몰유체도모선전압적최대치，소이전압이용솔교저。 SVPWM과조제기술가이재모선전압불변적정황하증대역변기수출전압，제고모선전압적이용솔，진이제고전궤적최고전속화부재전구。본문개소료일충SVPWM과조제방법，해방법모형간단，역우편정，병통과방진화실험험증료기정학성，재공정응용중구유교호적응용개치。
SVPWM technology has been widely used in permanent magnet synchronous motor ( PMSM ) vector control system .But the motor speed is limited when the inverter output voltage get maximum .And the bus voltage utilization ratio is low because the inverter output voltage has not reached the maximum of bus voltage.SVPWM Over modulation technology can increase the inverter output voltage when the bus voltage remains the same .It will be improve the utilization rate of bus voltage .And also improve the speed and load torque of the PMSM .This paper introduced a kind of SVPWM overmodulation method , it is simple modeling and easy to programming .And the method was verified by simulation and experiment , it has good value in engineering application .