SPWM技术中频逆变电源的载波研究与测试  

Carrier wave research and test of intermediate frequency inverter power supply based on SPWM technology

作　　者：朱学森 胡辉[1] 黄浩 牛建辉 Zhu Xuesen;Hu Hui;Huang Hao;Niu Jianhui(Northern China Institute of Aerospace Engineering,Langfang 065000,China)

机构地区：[1]北华航天工业学院,河北廊坊065000

出　　处：《无线互联科技》2022年第22期105-108,共4页Wireless Internet Technology

摘　　要：为了保证跑合监测系统能稳定工作,高性能的陀螺电源是不可或缺的供电设备。文章基于SPWM技术设计的中频逆变电源输出的正弦波,比以往的方波电源对马达的损伤更小,更安全可靠。正弦脉冲调制SPWM是一种用于逆变电源的开关管控制信号,文章在做中频逆变电源过程中,在测量电源输出性能时,测得结果发现载波频率过高,当输出电流调大时,同一套LC滤波电路会产生输出波形形变的情况,并且峰值电压会下降。对此,提出了一些疑问,做了相应的猜想,并对猜想的准确性与理论性进行了实验。In order to ensure the running in monitoring system can work stably, high-performance gyro power supply is an indispensable power supply equipment. The sine wave output from the intermediate frequency inverter based on SPWM technology is less damaging to the motor and more safe and reliable than the square wave power supply in the past. Sinusoidal pulse modulation SPWM is a switch control signal used for inverter power supply. In the process of making intermediate frequency inverter power supply, when measuring the output performance of the power supply, the measured results show that the carrier frequency is too high. When the output current is increased, the same set of LC filter circuit will produce output waveform deformation, and the peak voltage will drop. In this regard, some questions are raised, and the corresponding conjecture is made, and the accuracy and theoretical nature of the conjecture are tested.

关 键 词：正弦脉宽调制SPWM MOS管逆变电路 载波频率 LC滤波电路 

分 类 号：TM46[电气工程—电器]